Method of manufacturing printed circuit board and method of inspecting printed circuit board
A printed circuit board is fabricated in a manufacturing process. In an inspection process, first and second light sources of an inspection device irradiate the printed circuit board with first and second light having first and second wavelength distributions. First and second imaging devices produce a monochromatic first image and a color second image of an inspection subject region of the printed circuit board based on the first and second light respectively reflected by the printed circuit board. Presence and absence of a defect is determined based on at least the first image by automatic optical inspection. Further, verification of the defect is performed by visual observation of at least the second image.
Electronic component mounting system and electronic component mounting method
An electronic component system includes an electronic component mounting line mounting an electronic component on a board (exposure managing board) for which management of exposure time is necessary, a package ID reader (recognition unit) which recognizes a package code (identification information) that is applied to a package bag, and a storage unit which stores an exposure time limit which is permissible from an open time before reaching a management release in which management of the exposure time is unnecessary. In the electronic component mounting system, the package code is read while the package bag is open, the read time is stored as the open time, an expected duration is calculated which is necessary from a predetermined point of time before reaching the management release, and it is determined whether or not the exposure time limit is exceeded before the board which is exposed in the atmosphere reaches the management release.
A gasket made of an electrically-conductive elastomer is revealed that functions as both a water-tight seal and an electromagnetic interference (EMI) seal when mounting an electrical connector receptacle to an electrical panel or electrical box. This gasket is produced in a manner both unique and functional.
Cooling system for a server
Embodiments of the disclosure may include a system for cooling a computer server including a plurality of server modules. The system may include a first cooling system configured to remove heat from the plurality of server modules, the first cooling system including a first plurality of conduits for circulating a first cooling medium through the first cooling system, a second cooling system configured to remove heat from the first cooling system, the second cooling system including a second plurality of conduits for circulating a second cooling medium through the second cooling system, and a manifold configured to couple the first cooling system and the second cooling system, wherein the first plurality of conduits is removably connected to the manifold.
Method to increase server's density in datacenter
A method. Rack containers include rack units stacked in a first direction that is parallel to a floor. Each rack unit has wheels positioned on a supporting structure on the floor which enables adjacent rack containers to move closer to or further from each other. The supporting structure is on the floor and is oriented in the second direction. The second direction is parallel to the floor and perpendicular to the first direction. A cooling fluid is flowed through a flexible tube into each rack container via a cooling conduit secured at a first port on a top surface of each rack container. The cooling conduit encapsulates the flexible tube. The to surface is further from the floor than is any other surface of each rack container.
Electronic equipment stand
Disclosed herein is a stand attachable to and detachable from an outer face of electronic equipment to support the electronic equipment, the stand including: an attachment face opposed to the outer face of the electronic equipment on which a ventilation section is provided; a first ventilation port formed on the attachment face and opposed to the ventilation section of the electronic equipment; a second ventilation port formed at a position different from the attachment face; an air channel formed inside the stand to connect the first and second ventilation ports; and an attachment section attached to the ventilation section of the electronic equipment to fasten the stand to the electronic equipment.
Server chassis for servers
A server chassis installable in a server rack may include a lower compartment, an upper compartment, and an interconnector. The lower compartment may have a front end defining a front opening configured to allow for the passage of a server therethrough. The upper compartment may define a top opening substantially orthogonal to the front opening and may be configured to allow for the passage of a plurality of storage cartridges therethrough. The interconnector may have a first set of connectors communicatively coupled with a second set of connectors. The first set of connectors may be configured to mate with the server, and the second set of connectors may be configured to mate with the storage cartridges, such that the interconnector allows for the removal of the server without the removal of the storage cartridges.
A chassis structure includes a chassis body and at least one holder module. The at least one holder module includes a frame, a handle, and a guiding assembly. The frame is detachably disposed in the chassis body and has a first linking portion. The handle has a holding portion, a second linking portion, and a third linking portion pivoted to the frame. The guiding assembly is disposed on the chassis body and has a first guiding channel, a second guiding slot, and a third guiding slot. The first guiding channel has a first segment, and the second guiding slot has a second segment and a third segment curvedly connected to each other. The first linking portion, the second linking portion, and the third linking portion are adapted to respectively move along the first segment, the third segment, and the third guiding slot simultaneously such that the frame moves upwards and rotates from a first position to a second position simultaneously.
Risk reduction of electrical hazards
An apparatus includes an enclosure, a power switch, a cable actuator, a power converter and a manual switch. The enclosure may be mechanically attachable to an external side of an industrial control panel. The power switch may be configured to switch electrical power. The cable actuator may be configured to control the power switch and may have an end connectable to a power disconnect handle of the industrial control panel. The power switch may be open while the power disconnect handle is in an off position and closed while the power disconnect handle is in an on position. The power converter may be configured to generate low-voltage power from the electrical power. The manual switch may be configured to switch the electrical power from a line side of the power switch to the power converter. A wire may transfer the low-voltage power through at least one aperture.
High power multilayer module having low inductance and fast switching for paralleling power devices
The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
Blade server chassis bay divider
A divider for a bay of a blade server chassis includes a plurality of posts, a plurality of flex tabs, and a rail. The posts are located along a first side of the divider, and are configured to be inserted within respective holes in a first panel of the bay of the blade server chassis. The flex tabs are located along a second side of the divider, and are placed in physical communication with a second panel of the bay. The flex tabs are configured compress within the divider and away from the second panel to enable the posts to be inserted in the holes of the first panel, the second side of the divider being opposite to the first side of the divider. The rail is located along a third side of the divider, and is configured to guide a blade server within the bay.
Button device for electronic device
An electronic device may include a first member that forms at least a part of an exterior of the electronic device and includes an opening; a second member that is disposed inside the electronic device; at least one electronic component that is disposed between the first member and the second member not to overlap with the opening of the first member; and a button device disposed inside the electronic device. The button device may include a button that is inserted into the opening of the first button and a dome switch that is disposed at a position where the dome switch is pressed by the button.
Via stub elimination by disrupting plating
A PWB may be drilled forming a via. The via may expose one or more internal portions of a core layer, a prepreg layer, and an anti-plate coating. A seed material may then be applied from a top portion of the PWB to the via, forming a seed layer in the via, the seed material not adhering to the anti-plate coating. Electroless metal may then be applied from the top portion of the PWB to the via, forming an electroless plate layer that adheres to the seed layer. Electrolytic copper may then be applied from the top portion of the PWB to the via, forming a copper layer that adheres to the electroless plate layer. A bottom portion of the electroless plate layer may then be removed.
Methods and apparatus for a substrate core layer
A structure for a core layer of a substrate and a method for fabricating a core layer of a substrate are disclosed. The core layer comprises a molding compound encapsulating a die or a plurality of dies, a dielectric layer on the surfaces of the molding compound, and a conductive layer on top of the dielectric layer. A through hole is formed through the dielectric layer and the molding compound, which may be filled with a metal plate. A laser via is formed similarly. Build-up layers may be assembled next to the core layer to form the substrate, which can be used to package dies.
Flexible display panel and display apparatus
A flexible display panel and a display apparatus, the flexible display panel includes: flexible base layer; display part; packaging layer; supporting layer, including first area, bending area and second area, first area being connected with the second area via the bending area, bending area including at least two supporting teeth; supporting body located at a side of flexible base layer facing away from display device; when bending area is in flattening state, reserved space is formed between adjacent supporting teeth; when bending area is in bending state, flexible base layer, first area, supporting body, and second area are stacked in direction perpendicular to first area, adjacent supporting teeth contact with each other to provide supporting force to flexible base layer, supporting teeth together with first and second area form avoiding space, in direction perpendicular to the first area, projection of avoiding space is within projection of bending area.
Printed wiring board and method of producing the same
An ink layer of an electrically conductive ink is formed on a sheet-like base and then the base is bent-deformed before the ink layer is cured, followed by curing the ink layer, thereby forming wiring. The ink layer is pliable during the bending deformation of the base, preventing breakage of the ink layer associated with the bending deformation of the base, and preventing damage to the wiring even when the wiring is finely formed.
Printed circuit board
Disclosed is a printed circuit hoard. The printed circuit board includes a plurality of insulation layers and a plurality of pattern layers alternately stacked. The printed circuit board includes a plurality of device areas on which semiconductor packages are mounted and a peripheral area adjacent the device areas. An electrostatic discharge pattern is in a respective pattern layer among the plurality of pattern layers and is disposed at a boundary region between a respective device area of the plurality of device areas and the peripheral area.
Compact linear accelerator with accelerating waveguide
A linear accelerator head for use in a medical radiation therapy system can include a housing, an electron generator configured to emit electrons along a beam path, and a microwave generation assembly. The linear accelerator head may include a waveguide that is configured to contain a standing or travelling microwave. The waveguide can include a plurality of cells that are disposed adjacent one another, wherein each of the plurality of cells may define an aperture configured to receive electrons therethrough. The linear accelerator head can further include a converter and a primary collimator.
System and method for high power pulse generator
A device and method for generating pulses to activate and deactivate a kicker magnet is provided. When the kicker magnet is deactivated the circuit generates and stores a magnetic field in an inductor. When the kicker magnet is activated, the circuit changes configuration so that the magnetic field and current stored in the inductor can provide the necessary current to activate the kicker magnet is a minimal amount of time. The configuration of the circuit changes via the use of switches. The switches can employ Zener diodes arranged so as to provide protection against high voltage events and rogue neutrinos that may bombard the switches when the kicker magnet is used in the context of deflecting a particle beam.
Associating wireless control devices
A load control system may include one or more wireless control devices that may be associated via a programming device. An identifier for a first wireless control device may be determined in response to an actuation of a button on the first wireless control device. An association between the first wireless control device and a second wireless control device may be defined at the programming device. The identifier for the first wireless control device may be transmitted to the second wireless control device, which may cause the first wireless control device to enter a sleep mode. The first wireless control device may enter the sleep mode after an actuation of a button on the first wireless control device. The identifier may be determined in response to the actuation of the button on the first wireless control device and/or prior to the first wireless control device entering the sleep mode.
Commissioning mechanism for wireless lighting groups
An apparatus is provided for creating functional lighting groups. The apparatus includes one or more wireless devices and a commissioning device. The one or more wireless devices are coupled together via a line voltage, and are configured to enter a grouping mode responsive to commands sent over a wireless network, and are configured to send messages over the wireless network indicating that they have been power cycled via the line voltage. The commissioning device is coupled to the one or more wireless devices over the wireless network, and is configured to send the commands, and is configured to receive the messages, and is configured to create a functional lighting group comprising the one or more wireless devices.
Integrated lighting system and method
A control system including a plurality of high voltage devices grouped into a plurality of zones including a first zone and a second zone, a plurality of low voltage devices, wherein a first low voltage device is associated with the first zone and a second low voltage device is associated with the second zone, and a central control module. The central control module includes a first low voltage connection for receiving at least one first control signal from at least one of the low voltage devices and a high voltage connection for providing at least one second control signal to at least one of the high voltage devices. The central control module is configured to determine a daylight conversion factor based on the at least one control signal. Wherein the at least one second control signal is based at least in part on the daylight conversion factor.
Wavelength sensing lighting system and associated methods
A lighting system comprising a light source operable to emit a source light, a sensor operable to sense environmental light from an environment, and a controller operatively connected to each of the sensor and the light source and configured to analyze the environmental light sensed by the sensor to at least one of detect and generate data relating to a condition of the environment, the data being transmittable in a transmitted data light. The sensor is operable to sense the presence or absence of a dominant wavelength comprised by the environmental light. Additionally, the controller is operable to correlate the dominant wavelength with a substance.
Light source device
A light source device is provided with: a plurality of surface light sources that have different wavelength bands; a multiplexing unit that multiplexes light beams emitted from the surface light sources; and an adjustment unit that adjusts, when an endoscope that serves as a reference endoscope is connected, the light amounts of light beams emitted from the surface light sources such that illumination light emitted from the reference endoscope has a predetermined color balance and that corrects, when an arbitrary endoscope is connected, the color balance on the basis of the ratio of the color balance of illumination light emitted from the connected endoscope and the color balance of illumination light emitted from the reference endoscope.
Lamp driving circuit
A lamp driving circuit for driving a lamp part, includes a correction part configured to receive a first control signal for driving the lamp part with a predetermined brightness, to receive duty information indicative of a ratio of a supply voltage for operating the lamp part and a voltage across the lamp part, and to correct the first control signal based on the duty information to generate a second control signal, and a control part configured to receive the second control signal from the correction part, and to drive the lamp part with the predetermined brightness based on the second control signal.
Systems and methods for current regulation in light-emitting-diode lighting systems
Systems and methods are provided herein for current regulation. An example system controller includes: a first controller terminal configured to receive an input voltage, the first controller terminal being further configured to allow a first current flowing into the system controller based at least in part on the input voltage in response to one or more switches being closed; a second controller terminal configured to allow the first current to flow out of the system controller through the second controller terminal in response to the one or more switches being closed; a fourth controller terminal coupled to the third controller terminal through a first capacitor, the first capacitor not being any part of the system controller; and an error amplifier configured to generate a compensation signal based at least in part on the current sensing signal, the error amplifier including a second capacitor.
Constant current power driver circuit for automotive light assembly
A constant current driver circuit is provided for a vehicle light assembly having a plurality of light strings arranged in parallel with each other. Each light string in the plurality of light strings includes at least one light emitting diode (LED) electrically coupled in series with an LED driver. The driver circuit includes a bias circuit, a voltage regulator circuit and a sense circuit. The bias circuit is electrically coupled to each LED driver at a common node and, in absence of a trigger signal, operates to supply a bias voltage to each LED driver. The voltage regulator circuit is electrically coupled to the common node and regulates the bias voltage supplied by the bias circuit. The sense circuit is configured to detect on/off state of the voltage regulator and, in response to detecting an off state for the voltage regulator, provides a trigger signal to the bias circuit.
Induction heated roll apparatus
The present invention for eliminating a need for a temperature detecting element adapted to measure the temperature of a roll main body provides an induction heated roll apparatus including: a roll main body; a magnetic flux generating mechanism including an iron core and a winding; and a power supply circuit provided with a control element adapted to control AC current or AC voltage. The apparatus calculates the temperature of the roll main body using an AC current value obtained by an AC current detecting part, an AC voltage value obtained by an AC voltage detecting part, a power factor obtained by a power factor detecting part, a winding resistance value of the winding, and an excitation resistance obtained from characteristics of a relationship between a magnetic flux density and an excitation resistance of a magnetic circuit including the iron core and the roll main body as parameters.
Driver selection type rapid heating control method and eco vehicle thereof
A driver selection type rapid heating control method is provided. In an eco-vehicle, when an off signal of a hybrid electric vehicle (HEV) input pressed by a driver is received in response to detecting a heating signal while being driven in an electric vehicle mode (EV mode), the rapid heating is performed by an idling of an engine and an operation of a positive temperature coefficient (PTC) heater. When an on signal of the HEV input is detected, rapid heating is performed by a driving of an engine and the operation of the PTC heater. Thus, the rapid heating is performed with minimal fuel consumption against battery consumption under conversion into the EV mode, in particular, rapid windshield glass defrosting is performed for securing a field of view while driving by the driver selection.
Wireless access point control of discontinuous reception (DRX) parameters for user equipment (UE)
A wireless access point controls Discontinuous Reception (DRX) parameters for User Equipment (UE). The wireless access point wirelessly exchanges wireless communications with a plurality of UEs comprising High Power UEs (HPUEs) and non-HPUEs. The wireless access point determines a number of the HPUEs and determines a number non-HPUEs experiencing RF interference above an RF interference threshold. The wireless access point compares the number of non-HPUEs experiencing RF interference above the RF interference threshold to the number of HPUEs and when the number of non-HPUEs experiencing RF interference above the RF interference threshold exceeds the number of HPUEs, then the wireless access point modifies the DRX parameters for the HPUEs to a low DRX parameter setting. The wireless access point wirelessly transmits an instruction to the HPUEs indicating the modification of the DRX parameters for the HPUEs to the low DRX parameter setting.
Simultaneous operation of multiple communications protocols
Embodiments of the inventive concepts disclosed herein are directed to systems and methods for operating in multiple transmissions modes for satellite communications. A controller of a radio device may set a transmission mode of a single transceiver chain to a first communications protocol. The single transceiver chain may communicate with a satellite antenna using the first communications protocol. The controller may modify the transmission mode of the single transceiver chain from the first communications protocol to a second communications protocol. The controller may maintain synchronization for the first communications protocol. The single transceiver chain may transmit a first signal to the satellite using the second communications protocol, responsive to modifying the transmission mode. The single transceiver chain may simultaneously receive a second signal using the first communications protocol and the synchronization, and a third signal using the second communications protocol.
Method of configuring transmission data streams and wireless communication system
The present invention provides a method of configuring transmission data streams and a wireless communication system. A first wireless device of the wireless communication system determines a number of data streams for a second wireless device, under a condition that the first wireless device operates in a noncontiguous operation mode. Radio frequency (RF) units of the wireless devices are fully exploited, and the data rate between the first wireless device and the second wireless device is enhanced.
Method and device for establishing a dual connectivity between a user equipment and a MeNB and a SeNB, by providing the user equipment history information
A method is intended for establishing a dual connectivity between a user equipment and a MeNB and a SeNB. This method includes i) a first step during which the MeNB chooses a SeNB to offload a data rate requested by the user equipment, ii) a second step during which the MeNB sends a resource request, including data defining at least complementary radio resources to be allocated, E-RAB parameters, TNL address information, user equipment capabilities, current radio resource configuration for the user equipment, and a user equipment history cell information, to the chosen SeNB, and iii) a third step during which the chosen SeNB determines from these received data and from its not yet allocated radio resources if it can allocate the requested complementary radio resources for the user equipment and how to set corresponding radio parameters.
Method for resource allocation for device-to- device direct communication in wireless communication system, and apparatus therefor
Disclosed is a method for transmitting signals for a device-to-device (D2D) link at a user equipment (UE) in a wireless communication system. Specifically, the method comprises receiving a synchronization signal for the D2D link in a reference subframe, receiving a subframe bitmap indicating a plurality of subframes for the D2D link, and transmitting D2D link signals on at least one of D2D subframes determined using the information on the reference subframe and the subframe bitmap, wherein the synchronization signal is received with information on the reference subframe.
Communication system, communication apparatus, control method thereof, and storage medium
A mobile terminal (communication apparatus) selects a data item that needs to be obtained from an MFP (information processing apparatus) according to a user instruction given via an operation screen. Upon establishment of NFC communication between the mobile terminal and an NFC tag of the MFP as a result of the mobile terminal being brought closer to the NFC tag by the user, the mobile terminal reads, from the NFC tag, connection information for connecting to the MFP by using the Wi-Fi Direct. The mobile terminal connects to the MFP by using the Wi-Fi Direct based on the obtained connection information, and obtains data corresponding to the selected data item from the MFP through the Wi-Fi Direct communication.
Wireless communication terminal and method for wireless communication that incorporates a small-data indicator for establishing wireless connection with a network
The invention provides for a wireless communications terminal (502), and related system and method, for wirelessly communicating with a network (504, 506). The terminal (502) is arranged to transmit, as part of a wireless connection establishment procedure for forming a wireless connection between the terminal (502) and the network (504, 506), wireless-connection establishment signaling (510) including a small-data indicator to indicate to the network (504) that transmission of an amount of data below a threshold value is required from the terminal (502) by way of the wireless connection to the network (504, 506).
Radio communication terminal, radio base station and radio communication method
The present invention is designed so that PRACH transmission is carried out taking coverage enhancement into account. A radio communication terminal employs coverage enhancement and has a transmitting section that transmits a random access preamble by using a radio resource that is stipulated for the radio communication terminal employing coverage enhancement, and, in this radio communication terminal, one or a combination of the time, the frequency band and the sequence of the radio resource that is stipulated for the radio communication terminal employing coverage enhancement is different from that of a radio resource that is stipulated for a radio communication terminal not employing coverage enhancement.
Data transmission method, sender device, and receiver device
Embodiments of the present invention provide a data transmission method, a sender device, and a receiver device. The method includes: sending, by a sender device, to-be-transmitted data to a receiver device according to a transmission policy; and receiving, by the sender device, feedback information sent by the receiver device. In this process, for to-be-transmitted data after a guard interval in a last radio frame of any scheduling window, the sender device sends the to-be-transmitted data according to the transmission policy, so that no timeout occurs when the sender device is waiting for the feedback information, thereby achieving an objective of improving data transmission efficiency.
Method for transmitting and receiving uplink data using contention based resources in wireless communication system and apparatus therefor
The present specification relates to a method for transmitting medium access control protocol data unit (MAC PDU) in a wireless communication system. The method, which is performed by a terminal, comprises the steps of: transmitting a control signal through a physical uplink channel to a base station; and transmitting the MAC PDU including terminal identifier information for identifying the terminal to the base station using contention resources within contention-based PUSCH zone (CP zone).
Systems and methods for implicit information transfer
Systems and methods are described for implicit information transfer. Neighboring access nodes may coordinate an Almost Blank Subframe (ABS) pattern for ABS transmissions. Implicit transmit symbols may be assigned to ABS′ of the ABS pattern. Traffic may be scheduled for a wireless device on at least one ABS of the ABS pattern. The neighboring access nodes may use the scheduled ABS to decode implicit information associated with the implicit transmit symbols.
Systems and methods for prioritizing wireless device selection for coordinated multipoint (CoMP)
Systems and methods are described for coordinating transmissions from a multiple access nodes in a communication network. A relay-capable status of wireless devices connected to an access node may be determined. Relay capable wireless devices are dynamically selected from the connected wireless devices for assignment of coordinated transmissions from an access node. Scheduling between the selected relay capable wireless devices and the access node is conducted.
Communication timing control method, communication service system and wireless communication terminal
A communication timing control method for a communication service system provided with wireless communication devices, a wireless network, and an upper server groups the wireless communication devices using device information including characteristics of a service provided to the wireless communication devices entering the communication service system via the wireless network, characteristics of communication data handled in an execution application for receiving the provided service, and transfer characteristics of the wireless communication devices receiving the provided service. Next, a group-specific communication timing is determined for the grouped wireless communication devices. Next, communication is performed on the basis of the determined communication timing.
Channelization for signal boosters
A technology is described for increasing signal booster while maintaining network protections. A distance from the signal booster to one or more base stations can be estimated. A base station coupling loss (BSCL) value can be calculated based on the estimated distance. A gain and/or a noise power of an uplink signal of the frequency band can be adjusted based on the BSCL value while maintaining network protections.
Method for processing received signal of MIMO receiver
Disclosed herein are a received signal processing method including selecting a reference resource element (RE) from an RE group including a plurality of REs, generating a common filter to be shared among the plurality of REs of the RE group based on channel information of the reference RE, detecting primary signals, from which channel influence is removed, of the plurality of REs by applying the common filter to received signals of the plurality of REs, and generating secondary signals by compensating for primary signals of REs except for the reference RE among the plurality of REs using channel information of the REs, and a multiple input multiple output (MIMO) receiver.
Radio communication system, common reception apparatus and user terminal
To suppress reduction in system performance for mobile communications (group mobility) in a plurality of terminals existing inside the same moving object, a radio communication system for a plurality of user terminals existing inside a moving object and a radio base station is described. The user terminal receives a signal transmitted from the radio base station, and transmits the signal transmitted from the radio base station to a common reception apparatus disposed inside the moving object. The common reception apparatus detects a signal for each user terminal, based on signals transmitted from the plurality of user terminals, and transmits the detected signal to each user terminal. The user terminal receives the signal for the user terminal detected in the common reception apparatus to demodulate. Thus, for group mobility, it is possible to cancel interference among user terminals to improve the multiplexing effect, while suppressing communication overhead.
Opportunistic resource sharing between devices
Techniques for opportunistic resource sharing between mobile devices are described. A method comprises identifying a set of homogeneous device resources implemented by multiple devices based in part on resource configuration information received by a wireless transceiver, selecting a shared homogeneous device resource of one of the multiple devices to share between the multiple devices, and sending shared configuration information to identify the shared homogeneous device resource and a share role for each of the multiple devices. Other embodiments are described and claimed.
Radio base station, mobile station and method for determining transmitting power
Embodiments of the present disclosure provide a radio base station, a mobile station and a method for determining a transmitting power. A radio base station, according to an embodiment of the present disclosure, is connected with a plurality of mobile stations, wherein a first mobile station in the plurality of mobile stations can form at least one mobile station pair with other mobile stations. The radio base station comprises: a processing unit, configured to determine an initial value of a power factor of each mobile station pair according to state data of respective mobile stations in the mobile station pair, and determine an adjustment value of the power factor for the first mobile station according to state data of the first mobile station; and a transmitting unit, configured to transmit the initial value of the at least one mobile station pair and the adjustment value to the first mobile station.
Method and apparatus for resource allocation for unlicensed spectrum in new radio (NR)
Method and apparatus for allocating radio resources for use by mobile user equipment (UE), including sensing available radio spectrum resources, allocating at least a portion of the sensed available resources for use by at least one UE, detecting changes in the radio resource usage situation, and modifying the allocation of resources based at least in part on the detected changes in the radio resource usage situation.
Method and apparatus for supporting multiple frequency bands in mobile communication system
A method and an apparatus for supporting multiple frequency bands efficiently in a mobile communication system are provided. The method includes generating first system information including a frequency band indicator indicating a frequency band supported by the base station and an additional frequency band indicator indicating at least one frequency band supported by the base station, and broadcasting the first system information.
Method for transmitting and receiving downlink control information in wireless communication system supporting device-to-device communication and device therefor
A method of transmitting and receiving downlink control information in a wireless communication system that supports communication between terminals and a device for the same are provided. Specifically, a method of receiving downlink control information in a wireless communication system that supports Device-to-Device (D2D) communication includes: receiving, by a terminal, downlink control information for D2D communication from a base station, wherein the downlink control information includes a Physical Sidelink Shared Channel (PSSCH) resource allocation information for D2D data transmission, and a Physical Sidelink Control Channel (PSCCH) resource for D2D control information transmission is derived from the PSSCH resource allocation information.
Device for performing wireless communication
[Object] To enable a frequency band shared between wireless communication of a cellular system and wireless communication conforming to a wireless LAN standard to be more appropriately used in the cellular system.[Solution] There is provided a device including an acquisition unit configured to acquire information indicating a terminal device which is a device candidate for performing wireless communication of a cellular system using a frequency band shared between the wireless communication of the cellular system and wireless communication conforming to a wireless local area network (LAN) standard, and a control unit configured to notify the terminal device that the terminal device is the device candidate.
Mobile termination control techniques to support eMBMS
Mobile termination control techniques to support eMBMS are described. In one embodiment, for example, an apparatus may comprise logic, at least a portion of which is in hardware, the logic to send a first AT command to enable evolved Multimedia Broadcast Multicast Service (eMBMS) support at a mobile termination (MT), send a second AT command to query the MT regarding eMBMS services available for use by the MT, receive information describing one or more available eMBMS services in response to the second AT command, and send a third AT command to configure the MT to use at least one of the one or more available eMBMS services. Other embodiments are described and claimed.
Wireless multicast communication
This document describes multicast communication between wireless devices. A scheduling frame may be wirelessly transmitted by a wireless device. The scheduling frame may include a multicast address indicating a group of intended receiving devices for a payload frame. The scheduling frame may further include scheduling information indicating an order for the group of intended receiving devices to transmit acknowledgement information for the payload frame. A payload frame may also be wirelessly transmitted by the wireless device. The payload frame may include payload information intended for the group of intended receiving devices. Additionally, acknowledgement frames may be wirelessly received by the wireless device from at least a subset of the group of intended receiving devices. The acknowledgement frames may be received according to the order indicated in the scheduling information.
Optimized mechanism for paging transmission and reception
Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
Mobility management entity support of user equipment using extended discontinuous reception and power saving mode
Systems and methods described herein provide improved access to wireless devices in Power Saving Mode (PSM) and extended Discontinuous Reception (eDRX) sleep. A mobility management entity (MME) receives a mobile-terminated (MT) short message service (SMS) paging request with a size parameter for a corresponding short message. The MME determines if the wireless device is sleeping in PSM or eDRX mode, and, if so, uses the size parameter to determine if criteria are met for local buffering by the MME. If local buffering criteria are met, the MME locally buffers the short message until a next wireless device wake-up time. The MME also receives and processes requests to implement non-standard wake-up times for individual wireless devices in PSM sleep.
Method, apparatus, and device for managing binding information on network side
A method, apparatus, and device for managing binding information on the network side are provided. The method includes the following steps: an entity on a network side sends a Binding Revocation Indication (BRI) message to an entity which stores binding relations of mobile nodes (MNs), where the binding relation includes a mapping between a home of address (HoA) of an MN and plurality of care of addresses (CoAs) of the MN and the BRI message includes at least one CoA ID; and the entity which stores the binding relations of MNs deletes the corresponding binding relation of at least one CoA ID in the BRI message after receiving the BRI message from the entity on the network side. Thus, with the present invention, the network side can delete the binding relation between a specified CoA and an HoA in the case of plurality of CoAs, which makes it easier to maintain corresponding binding relations.
System for allowing registration of DECT devices
A system may be provided and may include a trusted DECT device; and a DECT base station; wherein the trusted DECT device is arranged to send, to the DECT base station, registration allowable DECT device credentials; wherein the DECT base station is arranged to: receive from a requesting DECT device a request for registration of the requesting DECT device to the DECT base station; wherein the request comprises requesting DECT device credentials; register the requesting DECT device to the DECT base station if the requesting DECT device credentials match the registration allowable DECT device credentials; and prevent a registration of the requesting DECT device to the DECT base station if the requesting DECT device credentials differ from the registration allowable DECT device credentials.
Low power intermittent messaging for hearing assistance devices
The present subject matter includes a system for communications between a transmitter and a receiver. In various embodiments, the system uses a sleep interval to allow the receiver to go to sleep between wake up times to “sniff” for transmissions from the transmitter. The system adjusts the length of the preamble of the transmitted signal or a repetition of packets to allow the receiver to detect a transmitted signal based on drift in the clocks of the system. In various embodiments, a receive channel is changed if a signal is not received at a prior channel selection. In various embodiments, the transmission is determined by detection of an event. In various embodiments, the event is an ear-to-ear event. In various embodiments, the receiver and transmitter are in opposite hearing aids adapted to be worn by one wearer.
Synchronization signal sending and receiving method, apparatus, and device
Embodiments provide synchronization signal sending and receiving methods, apparatuses, and devices. The synchronization signal sending apparatus of the embodiments includes a synchronization signal generation module, configured to generate a synchronization signal according to one or more sequences, where a length or lengths of the one or more sequences are determined according to a length of the synchronization signal. The apparatus also includes a baseband signal obtaining module, configured to obtain a baseband signal according to the synchronization signal generated by the synchronization signal generation module. Additionally, the apparatus includes a first sending module, configured to send, after performing radio frequency conversion, out the baseband signal obtained by the baseband signal obtaining module.
Method and apparatus for delay spread estimation
The propagation channel in a wireless communication system may be characterized as a multipath fading model wherein the multiple delayed and attenuated versions of the transmitted signal are received. In the receiver's processing chain, the impairments introduced by this propagation channel may be equalized using the channel estimates. The channel estimation is mainly performed using the known reference signals by conventional methods. The estimation of delay spread profile may be crucial for high performance channel estimation. The conventional methods may be appropriate for high operating channel bandwidths. In the case of low channel bandwidth, limited number of reference signals may be available which may not be adequate for accurate delay spread estimation. A method and apparatus are disclosed that improve the delay spread estimation for low channel bandwidth scenarios.
An apparatus and a method is disclosed. The solution includes determining a first parameter related to the transmission power available at a user terminal and determining at least one second parameter related to the quality of a connection of the user terminal. At least one threshold value is adjusted on the basis of the first parameter; and a selection of modulation and coding scheme for user terminal is performed by comparing the at least one second parameter to the at least one adjusted threshold value.
Method for sending preamble sequence and user equipment
A method for sending a preamble sequence and user equipment. The method includes determining a transmit power for sending a preamble sequence, where the transmit power meets a formula that takes into account a maximum transmit power of user equipment, a downlink power loss, and a target receive power of the preamble sequence. The method also includes sending the preamble sequence according to the determined transmit power.
Method and apparatus for proximity sensor control
Proximity sensors are used in many user devices to detect a user's proximity to it. The proximity detection may be used to control the transmit power of a user device to ensure that the transmit power is in the allowed power range. There are other uses of proximity detection. A proximity sensor, like many other electronic devices, needs power supply for its normal operation. Many user devices are battery operated and therefore reducing power consumption of a user device is essential. A method and apparatus are disclosed that may enable reduced power consumption for a proximity sensor. The disclosed method may be applied to any user device that employs a proximity sensor.
Mobile device, control program therefor, and control method therefor
A mobile phone includes an acceleration sensor, a communication unit, and a controller. The acceleration sensor detects an acceleration value. The communication unit performs communication. When determining, based on the acceleration value detected by the acceleration sensor, that the mobile device has shifted from a moving state to a stop state, a controller turns off a power supply of the communication unit when a communication connection between the communication unit and a base station is not established and the controller does not turn off the power supply of the communication unit when the communication connection between the communication unit and base station is being established.
Systems, methods and devices for small cell activation and detection
Methods, systems, and devices for enabling wireless communication devices in a cellular wireless network to utilize small cells having coverage within a macro cell are disclosed herein. User equipment (UE) can detect the need for using a booster providing a small cell, detect availability of small cells and submit a request to infrastructure of the cellular wireless network to aid in connection with the booster that provides the small cell. The request can be enhanced with small cell location queries, small cell activation requests and/or assistance data to enable meaningful small cell selection.
Antenna selection in discontinuous reception mode
A multi-antenna wireless device is equipped with a plurality of selectively operable radio chains. In an active mode or during a listening period of an energy-saving mode, the wireless device measures a quality characteristic of a signal, which it receives from a network node. During a non-listening period of the energy-saving mode, the wireless deactivates all of the radio chains. After the non-listening period, the wireless device activates a selected subset of the radio chains to receive a signal from the network node in a first listening period. The selected subset is determined on the basis of the measured quality characteristic.
Bluetooth low energy beacon with FBAR-based oscillator-per-channel
Methods and systems described herein relate to broadcasting on a wireless channel. An example method includes generating, based on data, a data signal including one or more data packets, where each of the one or more data packets is a non-connectable and non-scannable data packet. The method further includes generating a plurality of RF signals of different frequencies using an oscillator circuit, directly modulating at least one of the RF signals, based on the data signal, to generate a modulated RF signal, amplifying the modulated RF signal, and broadcasting the amplified modulated RF signal on the wireless channel.
Neighbor discovery to support sleepy nodes
Many internet of things (IoT) are “sleepy” and thus occasionally go into a sleep mode. As described herein, nodes in a connected network of nodes may determine that other nodes in the network are sleepy. Further, nodes, such as endpoint devices and routers for example, may process packets in the network based on a reachability state of their neighboring nodes.
Efficient roaming of mobile clients
The present disclosure discloses a method and a network device for efficient mobile client device roaming in a wireless local area network with multiple access points. Specifically, a network device determines a first received signal strength value for a first set of signals transmitted between a client device and a first access point during a first time period; and, determines a second received signal strength value for a second set of signals transmitted between a client device and the access point during a second time period. Based on the first and the second signal strength values, the network device computes a change in signal strength value corresponding to wireless communication between the client device and the first access point. Based on the change in signal strength value, the network device selects the access point from a plurality of access points for providing network access to the client device.
System and method for managing content exchanges in a wireless network using a listener module
A system and method for managing content exchanges in a wireless network using a listener module. A listener module receives a message broadcast by a string broadcast station. The string broadcast station message includes a network information string. The listener module also receives a message broadcast by a wireless station. The wireless station message includes the MAC address of the wireless station. The listener module associates the network information string with the MAC address of the wireless station and stores the pair a list server device. The wireless station may then request a list from the list server device of network information strings associated with the MAC address of the wireless station.
Transmission method, wireless communication system, and computer system
A transmission method is applied to a wireless communication system including at least one wireless access point device and a plurality of mobile devices, each mobile device correspondingly generating a first package. The transmission method includes: the wireless access point device receiving a part of the first packages of the mobile devices; the wireless access point device broadcasting a second package to the plurality of mobile devices; and each mobile device being sorted to a first group mobile device or a second group mobile device according to the second package, the first group mobile device stopping transmission of the first package to the wireless access point device and the second group mobile device continuously transmitting the first package within a time period after broadcasting the second package.
Identifying communication paths based on packet data network gateway status reports
A Long Term Evolution (LTE) network connects wireless communication devices to an Internet. In the LTE network, a Packet Data Network Gateway (P-GW) exchanges user communications between the wireless communication devices and the Internet. The P-GW determines a number of additional wireless communication devices the P-GW can serve and transfers the number to a Mobility Management Entity (MME). The MME allocates a new wireless communication device to the P-GW based on the number of additional wireless communication devices reported by the P-GW. The MME may redirect one of the wireless communication devices to the P-GW based on the number.
Method and apparatus for dynamic data path selection for narrow band wireless communication
Aspects of the subject disclosure may include, for example, querying a domain name server for status information associated with a set of service capability exposure function (SCEF) nodes associated with providing data capability for a wireless communication device in a mobile communication network, receiving, from the domain name server, status information associated with a set of SCEF nodes that are selected, selecting a first SCEF node from the set of SCEF nodes according to the status information for the set of SCEF nodes, initiating a first non-IP packet data network connection with the first SCEF node, initiating a user plane packet data network connection with a serving gateway node of the mobile communication network, wherein the serving gateway node includes a serving gateway and a packet data network gateway, and selecting the first non-IP packet data network connection or the user plane packet data network connection as a delivery path.
Method for reporting mobility information in wireless communication system and apparatus for supporting same
Provided is a method for reporting mobility information by means of a terminal in a wireless communication system. The method includes generating mobility information and reporting the mobility information via a network. The mobility information includes mobility state information indicating the estimated mobility state of the terminal, and mobility history information relating to the mobility history of the terminal.
Method and apparatus for cell reselection
In cellular communication systems, the success rate for incoming calls for a client terminal in idle mode is related to the successful reception of paging messages. The instances for paging message transmission, known as paging occasions, may be based on a client terminal's unique identity. The network transmits a paging message addressed to a specific client terminal in its specific paging occasion. In addition to the reception of paging messages, a client terminal may be required to search and monitor neighbor cells for cell reselection and handoffs. A method and apparatus are disclosed that improve the cell reselection by using the known a priori information to categorize the neighbor cells, to categorize the cell reselection types, and to perform cell reselection to an appropriate neighbor cell at the opportune time such that a paging message reception may be neither missed nor delayed during the cell reselection.
Intersystem change between different radio access networks
A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.
Systems and methods for running network egress links with small buffers at a high utilization
Methods and systems for managing packet flow in a local network in a manner that allows network devices at the edge of the network to use minimal buffer memory while maximizing use of bandwidth allocated on an interconnect between the local network and an external network. Packet flows facing external network problems are scaled back, reducing redundant traffic on the interconnect and allowing for use of small buffers in edge devices. A flow source marks a subset of packets within a flow for preferential treatment within the local network. The flow source then adjusts the flow rate only responsive to failures in transmission of the marked packets. In some implementations, an edge device removes the markings prior to packet egress. The local network honors the preferential treatment markings such that a loss of a marked packet is more likely to occur on an external network than on the local network.
Base Station apparatus and terminal apparatus
A time period between transmission of a synchronization signal and the next transmission thereof may become undesirably longer depending on a usage state of an unlicensed band and a terminal apparatus requires a long time to measure receive power of signals from a plurality of base station apparatuses that perform communication in the unlicensed band. A base station apparatus that communicates with a terminal apparatus in a second frequency band different from a first frequency band includes: a DL signal generator that generates a signal to be transmitted to the terminal apparatus; a radio transmitter that transmits the signal; and a connected terminal manager that receives subframe information to be transmitted to the terminal apparatus from another base station apparatus that communicates with the terminal apparatus in the first frequency band. The radio transmitter transmits the signal with at least one subframe included in the subframe information.
Managing secondary cell connections in unlicensed spectrum
In wireless communication networks using carrier aggregation including a secondary component carrier in unlicensed spectrum, a user equipment (UE) may monitor a downlink radio link quality of secondary cells for an event indicating failure of a communication link in the unlicensed spectrum with a secondary cell. The UE detects one or more failure events based on the downlink radio link quality. When a designated set of failure events is detected, the UE declares a failure state on the secondary cell. In response to the failure state, the UE may adjust operations related to the secondary component carrier in the unlicensed spectrum in order to save power and resources.
Methods, apparatuses, and systems for network analysis
Methods, systems, apparatuses, and computer readable media for providing a network analysis system are disclosed. An example of a system for providing a network analysis system includes at least one satellite device configured to monitor wireless network traffic to determine at least one network communication event, generate an event message based on the at least one network communication event, and transmit the event message. The system also includes a controller device configured to receive the event message, determine an identity of at least one device communicating during the network communication event, determine a network status based at least in part on the identity of the at least one device, and provide the network status via an interface.
Tracking area optimization
In one embodiment, a system instantiated in memory is executed by a processor to: select cells to optimize in a mobile network where the cells are associated with at least one control signal load exceeding a threshold, where the threshold is for at least one of tracking area update (TAU) load or paging load, reconfigure the cell's tracking area (TA) by either adding at least one additional cell from another TA to the cell's TA and/or removing at least one other cell from the TA, temporarily implement the reconfigured TA in the mobile network, receive updated control signal data for cells affected by said reconfigured TA, and save the reconfigured TA in the mobile network if the at least one control signal load is under the threshold and the second control signal load is under an associated second control signal load threshold for the cells affected by the reconfigured TA.
Multipoint transmission and reception in a radio communication network
A plurality of sub-cells are defined within a cell area of a radio communication network by the intersection of a radio paths of a plurality of directional radio antennas. The plurality of directional radio antennas are arranged to broadcast radio signals simultaneously, and to receive radio signals simultaneously. This disclosure relates to determining of signal values transmitted by or received from the plurality of directional radio antennas in a radio communication network.
Method and apparatus for constructing multi-cell network in mobile communication system
The present invention relates to a method by which a base station connected to a terminal through a first cell constructs a multi-cell network with another base station supporting a second cell, the method comprising the steps of: setting up a group including the first and second cells with the other base station through a first interface; and negotiating with the other base station through the first interface with respect to a configuration for additionally connecting the second cell to the terminal. However, the present invention is not limited to the example and other examples are possible.
Systems and methods for determining security reputations of wireless network access points
A computer-implemented method for determining security reputations of wireless network access points may include (1) receiving a unique identifier for a wireless network access point to which a mobile device has connected and security information that identifies the security posture of the mobile device after connecting to the wireless network access point, (2) adding the unique identifier and the security information to a security database, (3) correlating the security information with an additional set of security information that identifies the security posture of an additional mobile device after connecting to the wireless network access point, (4) assigning a security reputation to the wireless network access point, and (5) enabling a requesting mobile device to determine whether to connect to the wireless network access point by providing the security reputation of the wireless network access point to the requesting mobile device. Various other methods, systems, and computer-readable media are also disclosed.
Contextual signaling system 7 (SS7) firewall and associated method of use
A contextual SS7 firewall filter is inserted between a network operator and its roaming partners intra network and inter network SS7 traffic. SS7 firewall filter validates GSM MAP and GSM CAP messages based on specific criteria as provisioned for those message types and either allows them or blocks them from reaching their intended destination based on the validation results. The validation step involves verification of MSU correctness, verification of correctness of SS7 MTP fields for each MSU, and verification of correctness of SS7 SCCP fields for each MSU. SS7 firewall filter blocks GSM messages that fail at least one of the verification steps.
Method and apparatus for authenticating device in wireless communication system
Disclosed are an authentication method performed by a radio access network (RAN) node in a wireless communication system and an apparatus thereof. In the present disclosure, a first message indicating initiation of an authentication procedure of the RAN node for multiple user equipments (UEs) used for a specific purpose to attach to a network is transmitted, an authentication request message including first security information for authenticating the network is received from the first network node, second security information for authenticating the RAN node is transmitted to the first network node, and a complete message indicating completion of the authentication procedure is received from the first network node.
Method and apparatus to use infra-structure or network connectivity services provided by 3rd parties
A telecom connectivity service provider (TCSP) and a method for allocating an infrastructure resource to a virtual network operator (VNO). A TCSP control element sends to a downstream control element, a request for a portion of the infrastructure to be allocated to the TCSP by an infrastructure provider (InP) and receives a response from the downstream control element providing access to and control of the allocated infrastructure. The TCSP control element can pool the allocated infrastructure with other resources allocated to the TCSP and/or communicate with an upstream control element for providing access to and control of the allocated infrastructure to the VNO. The downstream control element is a local InP control element or a downstream TCSP control element. The upstream control element is a VNO control element or an upstream TCSP control element.
System and method for wireless network access protection and security architecture
Wireless network specific (WN-specific) key can be used to provide access protection over the radio access link. A WN-specific key may be associated with (or assigned to) a wireless network, and distributed to access points of the wireless network, as well as to user equipments (UEs) following UE authentication. The WN-specific key is then used to encrypt/decrypt data transported over the radio access link. The WN-specific key can be used in conjunction with the UE-specific keys to provide multi-level access protection. In some embodiments, WN-specific keys are shared between neighboring wireless networks to reduce the frequency of key exchanges during handovers. Service-specific keys may be used to provide access protection to machine to machine (M2M) services. Group-specific keys may be used to provide access protection to traffic communicated between members of a private social network.
Network registration system for registering communicator on network and network device therefor
In a network registration system including a communicator to be registered on a network and a register registering the communicator on the network, either of the communicator and the register includes a check information generator generating a check information signal according to check information for prompting the user to check that the communicator is treated as an object to be registered in the network registration system; and a check information output section outputting the check information signal in a form sensible to the user. The other of the communicator and the register includes an evaluation criterion supplier supplying evaluation criterion information allowing the user to evaluate the suitability of the check information emitted from the check information output section. Thus, the network registration system can prevent an incorrect registration while easily registering the communicator to the network.
System and method of fast roaming in enterprise fabric networks
A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.
Cloud-based connectivity information discovery
A method includes detecting a change in connectivity information for a mobile device. The connectivity information allows another device to connect to the mobile device at least while the mobile device is wirelessly connected to a network. In response to the change in connectivity information for a mobile device, performing an update with a service provider to indicate the change in connectivity information. Another method includes receiving an update from a first electronic device, where the update indicates one or more changes in connectivity information for the first electronic device. The method includes updating one or more second electronic devices with changed connectivity information of the first electronic device. Another method includes receiving from a service provider an update of changed connectivity information for a first electronic device for which a second electronic device is subscribed at the service provider for updates to connectivity information for the first electronic device.
Apparatus and method for accessing wireless network
A method of using subscriber identification information stored in mobile user equipment (UE) to connect to a communication service over a public wireless network in the UE, establishing a communication link between the UE and a device, generating network access information (NAI) associated with the communication service in the UE, and sending the NAI from the UE to the device via the communication link. The method further comprises connecting the communication service in the device using the NAI and terminating the connection of the communication service in the UE.
Provisioning of application categories at a user equipment during network congestion
Technology for provisioning categories of applications on a user equipment (UE) is disclosed. A registration update message may be received at a wireless network element from the UE over non-access stratum (NAS) signaling. Application Specific Congestion Control for Data Communications (ACDC)/Application and Service Access Control (ASAC) information may be communicated from the wireless network element to the UE in response to receiving the registration update message. The ACDC/ASAC may be activated at a selected prioritization level, at the wireless network element, while a wireless network channel condition of a wireless network exceeds a capacity threshold, the ACDC/ASAC enabling only application categories to operate at the UE that are contained in the ACDC/ASAC information.
Bluetooth audio communication system and method for acknowledging reception of packets of audio streams at a slave and master devices
A method applied to a wireless Bluetooth audio communication system includes: providing an audio gateway of a first piconet to communicate with a master device in the first piconet and to transmit at least one packet of audio stream to the master device and a slave device; employing a first transceiver as the master device to receive the at least one packet of the audio stream from the audio gateway; and, employing a second transceiver as the slave device to receive the at least one packet of the audio stream from the audio gateway and to acknowledge the first transceiver whether the second transceiver has successfully received the at least one packet of the audio stream from the audio gateway.
Selective user interaction in a dynamic, proxmity-based group of wireless communication devices
A method is provided for establishing a dynamic, proximity-based group of wireless communication devices to support potential interaction between a user of a first wireless communication device and one or more users of the wireless communication devices in the dynamic, proximity-based group. In the method, the first wireless communication device sends a short-range wireless beacon broadcast message to other wireless communication devices in a proximity zone around the first wireless communication device. The short-range wireless beacon broadcast message is adapted for requesting the other wireless communication devices to send a response message to a server. The server registers responding devices among the other wireless communication devices. The first wireless communication device communicates with the server to enable the user of the first wireless communication device to interact selectively with one or more of the users of the registered wireless communication devices, wherein said one or more users are less than all users of the registered wireless communication devices.
Method and system for vicarious downloading or uploading of information
Methods and systems for vicarious downloading or uploading of information are disclosed herein. In one embodiment, such a system involves a mobile device that includes a memory device capable of storing information or content, and at least one wireless communication component. The mobile device further includes a processing device coupled at least indirectly to the memory device and to the at least one wireless communication component, and a power source. The processing device is configured to determine at least one characteristic/condition pertaining in at least some manner to the mobile device. Also, the mobile device is configured to send a command message to another device when the at least one characteristic/condition is determined, the command message being configured cause the other device to perform vicariously a downloading or uploading of the information or content on behalf of the mobile device.
Network device selection for broadcast content
Providing network device selection for broadcast content is disclosed. Changes to a LTE or LTE-B network can be propagated in real-time, or near-real-time, to a mapping profile representative of the LTE or LTE-B network. This mapping profile can be employed in updating the LTE or LTE-B network. Further, the mapping profile can be employed in establishing a new LTE-B session, adapting an existing LTE-B session, maintaining an existing LTE-B session, etc. Access to a selection rule can enable the LTE or LTE-B network to rank a determined bearer path of the LTE or LTE-B network. LTE-B network and service management can be performed by the LTE-B network or components thereof, such as, at a BMSC component. Moreover, network device selection for broadcast content can be virtualized.
Providing route information to devices during a shared transport service
A system and method of providing information about a transport service to user devices are described. The system arranges a transport service for a first user and a second user. The system determines first data corresponding to a first route from a location of a driver device of the driver to a first pickup location of the first user and second data corresponding to a second route from the first pickup location to a second pickup location of the second user. A combined route is determined based on the first data and the second data. The system transmits data associated with the first data without transmitting the data corresponding to the combined route to a first user device of the first user, and transmits data corresponding to the combined route to a second user device of the second user.
Direction determination of a wireless tag
In aspects of direction determination of a wireless tag, a mobile device can receive wireless signal replies that include signal strength indicators from a wireless tag in response to wireless communications from the mobile device to the wireless tag. The mobile device can include a tracking module that is implemented to track movement of the mobile device based on motion sensor inputs, and identify a location of the mobile device based on the movement of the mobile device. The tracking module is also implemented to determine a direction toward the wireless tag relative to the location of the mobile device based on the signal strength indicators in the wireless signal replies from the wireless tag.
Location-based buffer management systems and methods
An exemplary method includes a buffer management system tracking a geographic location of a mobile computing device while the mobile computing device receives streaming content by way of a network; determining, based on the tracked geographic location, that the mobile computing device is approaching a geographic area designated as having a network connectivity level that is below a predetermined threshold; and dynamically increasing, in response to determining that the mobile computing device is approaching the geographic area and based on the tracked geographic location of the mobile computing device, a size of a buffer maintained by the mobile computing device and used to present the streaming content by way of the mobile computing device. Corresponding systems and methods are also described.
In-vehicle access application
An in-vehicle access application may have different modes of operation. The different modes of operation may allow the in-vehicle access application to interact with different access devices, or interact differently with an access device. When a vehicle is determined to be in a stopped position, a first mode of operation of the in-vehicle access application can be activated. When a vehicle is determined to be moving, a second mode of operation of the in-vehicle access application can be activated.
Computerized system and method for generating and updating a map user interface
Apparatus, interfaces, and computer instructions are provided for establishing an association between a user and a declared interest, such as a brand or some other subject, and for generating a map to display the interests of one or more users. An association is established between an interest identifier, a user, and target object selected based upon an action of the user. The target object may include a location that may be specified by coordinates. The action may include selection of the at least one location by the user. Selection may include selecting a user interface feature that causes the at least one location to be selected based upon a geographical position of the user. The position may be determined by a Global Positioning System device carried by the user. Techniques are also disclosed for identifying people who are potentially interested in a given interest, or in a second interest related to a first interest, based on previously established interest-location-user associations.
D2D communication discovery method, apparatus, and system
A D2D communication discovery method, an apparatus, and a system are disclosed. In an embodiment the D2D communication method includes acquiring, at an application layer, location information of a first user equipment and location information of a second user equipment, calculating a distance between the first user equipment and the second user equipment according to the location information of the first user equipment and the location information of the second user equipment and sending a D2D link establishment instruction to the first user equipment according to the distance between the first user equipment and the second user equipment so that the first user equipment and the second user equipment establish a D2D communication link.
Selecting a messaging protocol for transmitting data in connection with a location-based service
A system can receive a request for a transport service from a first device. The request can include a user identifier associated with a first user of the first device, contact information associated with a second user, and a pickup location information. The system can make a determination whether a user account associated with the second user is stored in a user database using the contact information in the request. Based on the determination, the system can select a messaging protocol to transmit data to a second device associated with the contact information. The system can transmit a message corresponding to the transport service to the second device using the selected messaging protocol.
Multi-RAT node used for search and rescue
Systems and methods are presented for using a mobile multi-radio access technology (multi-RAT) device for locating an individual, for example, in a search-and-rescue application. The multi-RAT device may permit the individual's cell phone to attach to the mobile multi-RAT device, and then may use a directional antenna to locate the individual. Various embodiments of such a device are described.
Method and system for synchronizing vibro-kinetic effects to a virtual reality session
A method for synchronizing an output of a motion signal with a virtual reality program being played comprises mixing a multi-channel audio output of the virtual reality program into at least one mixed audio track. A time position of the virtual reality program being played is obtained using the at least one mixed audio track. A motion signal corresponding to virtual reality program being played and synchronized with the identified time position of the virtual reality program being played is obtained, the motion signal comprising motion platform actuator-driving instructions. The motion signal is output to an actuation system of a motion platform for producing vibro-kinetic effects in the motion platform corresponding to and synchronized with the virtual reality program being played. A motion controller for synchronizing an output of a motion signal with a virtual reality program being played is also provided.
Immersive media with media device
Aspects of the subject disclosure may include, for example, a method, comprising: receiving, by a media processor including a processor, spherical audiovisual media content from a content delivery network; rendering, by the media processor, video for a point of view in the spherical audiovisual media content at a display device coupled to the media processor; receiving, from a remote control device coupled to the media processor, a control signal panning the point of view, resulting in a new field of view; and generating, by the media processor, audio signals from the spherical audiovisual media content corresponding to the new field of view, wherein the audio signals are adapted to audio reproduction equipment coupled to the media processor. Other embodiments are disclosed.
Dynamically changing master audio playback device
A method for dynamically changing the master audio playback device of a set that includes at least two audio playback devices, wherein one audio playback device of the set is a set master audio playback device that controls the play of audio data by at least one other slave audio playback device of the set. A first slave audio playback device receives its selection as a new recipient of audio data and, in response, the first slave audio playback device is designated as a new set master audio playback device and the set master audio playback device is designated as a new slave audio playback device. The new set master audio playback device controls the play of audio by the new slave audio playback device.
Holographic visualization of microphone polar pattern and range
A method, system, and computer product for providing a visual indication of sound capture capability of a microphone includes receiving data corresponding to a polar pattern and a sound capture range of the microphone from a memory, generating a projection signal based on the data corresponding to the polar pattern and the sound capture range provided from the memory, generating a virtual image based on the projection signal, and projecting the generated virtual image near a sound source. The virtual image provides a visual indication of capability of the microphone to capture a sound generated by the sound source.
Pipe calibration system for omnidirectional microphones
Embodiments include a system comprising a pipe that includes a first end and a second end. The pipe includes a plurality of sections coupled together. The system includes a loudspeaker that is a mouth simulator loudspeaker. The system includes an adapter that connects the loudspeaker to the first end. The system includes a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. The receptacle secures a plurality of microphones a third distance inside an inside surface of the pipe.
Hearing aid system and a method of operating a hearing aid system
A method of operating a hearing aid system (400) based on processing two groups of interleaved frequency bands such that one of the two groups of frequency bands is attenuated with respect to the other and such that it alternates with time whether one or the other of the two groups are attenuated and a hearing aid system (100, 200, 300) for carrying out the method.
Daisy chaining of tournament audio controllers
A method and system for daisy chaining tournament audio controllers, where the method comprises, in a headset coupled to a first audio controller, the first audio controller being in a daisy chain of audio controllers: receiving a chat signal from a previous audio controller in the daisy chain of audio controllers, receiving a microphone signal from a microphone in the headset, summing the chat signal with the microphone signal, communicating the summed signal to a next audio controllers in the daisy chain, and communicating the chat signal to the headset. The microphone signal may be removed from the summed chat signal and microphone signal by adding a second microphone signal 180 degrees out of phase with the microphone signal. The chat signal may be summed with the microphone signal at an amplitude set by a user of the headset after the removal of the microphone signal.
Method for limiting amplifier input current to avoid low voltage conditions
A predictive brownout prevention system may be configured to prevent brownout of an audio output signal. Particularly, the brownout prevention system may be configured to receive information indicative of adaptive estimates of power supply conditions, wherein the information indicative of adaptive estimates of the power supply conditions comprises information regarding a voltage component and a resistive component received from an adaptive battery model of a battery for providing electrical energy to a power supply for generating the power supply voltage and adapt the adaptive battery model based on a monitored battery voltage output by the battery and loading events of the signal path and excluding loading events of components other than the signal path which are powered from the battery.
Default playback devices
Systems and method discussed herein involve applying a designation of a default playback device in a media playback system. One method may involve maintaining a database comprising data indicating an assignment of an identification of a network microphone device to a playback zone of a media playback system, receiving a message indicating (i) the identification of the network microphone device and (ii) a media playback command, identifying the playback zone in the media playback system based on the data in the database and the received message, and transmitting to the playback zone, a message indicating the media playback command.
Multi-membrane microphone for high-amplitude audio capture
Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal. In response to the received acoustic signal, the device outputs electrical signals from a first input audio transducer and a second input audio transducer. The second input audio transducer is less sensitive than the first input audio transducer.
Disclosed is a loudspeaker module, comprising a shell, wherein a vibrating system and a magnetic circuit system are accommodated in the shell, the vibrating system comprises a vibrating diaphragm and a voice coil which are combined together; a whole inner cavity of the module is divided by the vibrating diaphragm into two cavities, i.e. a front voice cavity and a rear voice cavity; an edge portion of the vibrating diaphragm is fixed on the shell by using an annular supporting member, a plurality of cavity expansion portions formed by incomplete filling are distributed on the supporting member at intervals, and each of the cavity expansion portions is communicated with the rear voice cavity. The loudspeaker module of the present disclosure solves the technical problem of F0 rising due to the narrow rear voice cavity of the loudspeaker module in the prior art.
Multi-point multiple sensor array for data sensing and processing system and method
A method for enhancing sensor measurements includes performing measurements utilizing sensors of wireless earpieces, analyzing the measurements to determine statistical confidence in the measurements, and determining whether the measurements are accurate utilizing the statistical confidence. The measurements may be biometric measurements of a user utilizing the wireless earpieces. The measurements may be environmental measurements. A wireless earpiece may include a frame for fitting in an ear of a user, a logic engine controlling functionality of the wireless earpiece, and a plurality of sensor performing biometric measurements of the user. The logic engine perform measurements utilizing a plurality of sensors of the wireless earpiece, analyzes the measurements to determine a statistical confidence interval of the measurements, determines whether the measurements are accurate utilizing the statistical confidence interval, and optimizes the measurements to determine a biometric reading of the user in response to determining the measurements are not accurate.
There is provided an earphone device of an ear-hole insertion type having a noise cancelling function, the earphone device including a left channel housing unit that accommodates a left channel driver unit outputting a left channel sound; and a right channel housing unit that accommodates a right channel driver unit outputting a right channel sound. A microphone for noise cancelling and a battery are accommodated in each of the left and right channel housing units.
A acoustic device includes a supra-aural ear cup, a pinna replica at least partially enclosed by the supra-aural ear cup, wherein an inner surface of the pinna replica faces the exterior so that exterior sounds are received by the pinna replica and a microphone unit for collecting said exterior sounds, said microphone unit being configured to emit a first electric signal comprising information on the collected exterior sounds.
Microphone having a sound delay filter
A microphone having a plural porous sound delay filter is provided. The microphone includes a housing that has a first sound passage, a second sound passage and a third sound passage. A sound element is disposed in a position that corresponds to the first sound passage in the housing, and a semiconductor chip is electrically connected with the sound element in the housing. A low frequency lag filter is disposed in the second sound passage and delays low frequency sound source and a high frequency lag filter is disposed in third sound passage and delays high frequency sound source.
Fetal communication system
The fetal communication system comprises a belt unit and a headset. The headset comprises a microphone that picks up audible sounds and transmits them to the belt unit. By way of example and not of limitation, the audible sounds may be a pregnant woman speaking to her unborn child, music, or educational programs. The belt unit holds a sound transducer in place over the pregnant woman's abdomen via a belt strap that passed around her midsection. A circuit in the belt unit receives the wireless signal sent by the headset, amplifies the audio portion of the signal, and passes the audio signal to the sound transducer. The audible sounds played by the sound transducer may pass through the abdomen to the fetus.
Hybrid circuit-packet switch
A hybrid circuit-packet switch device includes a packet switch and a circuit switch. The circuit switch selectively passes, under control of a control logic, incoming data received at an optical input of the hybrid circuit-packet switch device to the packet switch or an optical output of the hybrid circuit-packet switch device.
Method and monitoring centre for supporting supervision of events
A method and monitoring center (304) for supporting supervision of events in a monitored area (300) based on sensor data (D) reported by sensors over a communication network (302). When the monitoring center (304) detects an abnormal event (E), it identifies a set of sensors (S1-S3) which are potentially impacted by the event, and also identifies network nodes (N1-N3, BS) that are able to communicate sensor data reported by the identified sensors (S1-S3). The monitoring center (304) then instructs (In) the identified network nodes to promote the communication of sensor data reported by the identified sensors. Thereby, transport of the sensor data will be enhanced and it will arrive promptly and properly at the monitoring center, to enable any watching staff to take notice and evaluate the abnormal event as soon as possible.
Pre-distribution identification of broadcast television content using audio fingerprints
Systems, devices and methods are provided to automatically identify advertisements or other portions of a broadcast television stream before the stream is distributed via a cable, DBS, IPTV or other medium. The television broadcast is received at the data processing system, and audio content of the television broadcast is analyzed to generate an audio fingerprint of a portion of the audio content. The identified audio fingerprint are compared to audio fingerprints stored in a database to thereby identify the portion of the television broadcast based on the generated audio fingerprint. By identifying the contents of an actual broadcast prior to redistribution of the broadcast, additional actions may be taken that are unique to the identified content.
Video advertising system
A video advertising system, methods, and apparatus are disclosed, which may include an advertising system, including an advertising server and advertising console, and a user device, which may cooperate to select video advertising campaigns and display video advertisements. In an example embodiment, a method includes playing a video on a display, overlaying markings on the video while the video plays, at a first time while the video plays, measuring a first refresh rate of the video, at a second time while the video plays, performing a first operation on the markings, measuring a second refresh rate of the video at the second time, and determining an estimated area of the video displayed on the display based on the first refresh rate and the second refresh rate. In an example embodiment, a prediction model is trained to output a viewability inference for a video.
System and method for layered delivery of media content quality
A method in a server for providing various Internet Protocol television signal qualities involves an IPTV signal having a first signal quality that is transmitted over a first network connection to a first device. A request to receive the IPTV signal over a second network connection at a second device with the IPTV signal having a second signal quality is received. A determination is made that the second network connection has sufficient bandwidth to transmit the IPTV signal at the second signal quality, and that the second device is capable of receiving IPTV signal. The transmission of the IPTV signal over the first network connection to the first device is ended. An endpoint for the transmission of the IPTV signal to the first device is determined. The IPTV signal is transmitted over the second network connection to the second device at the second signal quality beginning at the determined endpoint.
Transcoder enabled cloud of remotely controlled devices
Various embodiments are directed to one or more transcoder devices in communication with an input device such as a remote control device and multiple destination devices in which the transcoder device(s) facilitate communication between the remote control and the various destination devices in the vicinity. The transcoder device(s) can also provide the user with an environmental awareness of conditions and events surrounding the user. Other embodiments are described and claimed.
User interface, method and system for media content
A system is configured to perform a method which is also disclosed, to provide a user interface. The user interface is presented as a visual overlay that provides options for selecting content, such as any audio and/or visual media, any streaming media, any live or other television or on demand show(s) or content that may be on a selected programming channel. The user interface may be configured for displaying a channel listing as a channel bar, and a show listing as tiles in an expanded listing area. The expanded listing area may include one or more current or future shows available via a selected channel.
Live programming event query generation for recording and notification in a video delivery system
In one embodiment, a method receives interest indications for entities, entitlements, and location information that are indexed by user profiles in databases. The interest indications for the entities, the entitlements, and the location information are transformed from being indexed by the user profiles to indexing the entities and indexing entitlement and location information as availability pairs in an index and associating user profiles in the user profiles as entries for the index. The method receives a notification of a live programming event before the event starts and uses the notification to determine an entity of a media program and an availability pair. A second database is queried using the entity and the availability pair to determine a set of user profiles associated with the entity and the availability pair. Then, an action is performed for at least a portion of the set of user profiles before the live programming event occurs.
Media monitoring using multiple types of signatures
Media monitoring using multiple types of signatures is disclosed. Example methods disclosed herein include, in response to determining that a media signature of a first type reported by a device meter matched a reference signature of the first type associated with first reference media, sending a first indication to the device meter to indicate that media monitored by the device meter corresponds to the first reference media, and sending a set of reference signatures of a second type associated with the first reference media to the device meter. Disclosed example methods also include receiving a second indication from the device meter indicating that the media monitored by the device meter no longer corresponds to the first reference media, and in response to receiving the second indication, processing subsequent media signatures of the first type reported by the device meter to identify the media being monitored by the device meter.
Image display apparatus and image displaying method
An image display apparatus and an image displaying method are provided. The image display apparatus includes a display; and a processor configured to parse information about a channel selected in response to a channel selection signal, determine whether to provide a plurality of services through the selected channel based on the parsed information, and, in response to the determining that the plurality of services are to be provided through the selected channel, obtain a plurality of service streams respectively corresponding to the plurality of services provided through the selected channel; and a decoder configured to decode one service stream from among the obtained plurality of service streams.
Method and apparatus for content distribution for multi-screen viewing
A method of receiving a video program and information related to the video program by a first device registered in a user account of a user as a standalone device at a server is disclosed. The method comprises sending location information of the first device to the server; sending a request to the server for the video program; receiving the video program; and receiving information related to the video program according the location information.
Portable information processing device and media data replay system
A portable information processing device (1) is provided with a communication portion (12) capable of communication according to a prescribed network standard allowing sharing of media data between corresponding apparatuses connected to a network, a built-in display portion (10) capable of replaying/displaying the media data, a control unit (18a) capable of controlling a display on the built-in display portion and acquiring the media data, and a first external display (15) noncorresponding to the prescribed network standard.
Systems and methods for determining quality levels for videos to be uploaded
Systems, methods, and non-transitory computer-readable media can define a set of video quality levels. One or more social engagement signals associated with videos uploaded at each video quality level out of the set of video quality levels can be acquired. Information associated with each user out of a set of users can be acquired. A respective video quality level for each user can be determined based on at least one of the information associated with each user or the one or more social engagement signals.
Obtaining ratings for content items from a group of users while limiting a number of times the content items are presented to the group of users within a time interval
An online system presents content items to a group of users who provide ratings for the content items. Based on ratings received from various users of the group, the online system generates data describing presentation of the content items to users of the group. Because of a limited number of users in the group, the online system enforces rules that limit the ability to show content items to users of the group within a time interval. Accordingly, when a set of content items are selected for presentation to a user of the group, the online system replaces content items of the set that were previously shown to the user within the time interval with alternative content items. The online system also retrieves a previously received rating for a content item replaced by an alternative content item to use along with ratings received for content items of the set.
Method and system for voice recognition input on network-enabled devices
Apparatus and methods to implement a technique for using voice input to control a network-enabled device. In one implementation, this feature allows the user to conveniently register and manage an IPTV device using voice input rather than employing a bulky remote control or a separate registration website.
Integrated intelligent server based system for unified multiple sensory data mapped imagery analysis
An integrated intelligent server based system includes at least one autonomous system containing one or more analytical server for unified multiple sensory data mapped multi-modal or multi-sensory imagery analysis, generating analysis result and streaming of the sensory data with the generated analysis result to the receiver module. A fail safe and fault tolerant technique to generate, store and stream the multi-sensory images to the receiver module is also proposed. Once received, the receiver module extracts the sensory data and the results of the sensory data analysis from the image and video using a suitable decoder. The integrated intelligent server based system would enable embedding the results of the sensory data analysis within the image itself and streaming the multi-sensory image embedded with the results of said sensory data analysis to a receiver module. This results in adopting this new concept in Internet of Things scheme of activities as well.
Method for reducing time to first frame/seek frame of protected digital content streams
Embodiments are directed towards managing play of at least one stream of digital content to reduce a time to a first frame or seek frame within the content by playing unencrypted portions of the digital content received at a client device at least until key negotiations and decryption actions are completed for corresponding encrypted digital content, at which point play is switched to the decrypted content in a seamless manner. In one embodiment, the unencrypted content is at a lower quality, resolution, or bit rate than the encrypted content. In one embodiment, the at least one stream is a stream of content that includes at least a first portion that is unencrypted, and a second portion that is encrypted. In another embodiment, the at least one stream includes a first stream that is unencrypted and played until a second, encrypted, stream is readied for play.
Method and apparatus for intra mode coding
According to at least one aspect, a method for predictive Intra coding is provided. The method comprises: determining a set of Intra prediction modes used for prediction unit (PU) blocks with a plurality of different block sizes comprising a 4×4 block size and at least two other block sizes; applying predictive Intra coding to a first PU block having a first block size that matches a block size in the plurality of different block sizes based on one or more neighboring PU blocks according to a first Intra prediction mode selected from the set of Intra prediction modes; and applying predictive Intra coding to a second PU block having a second block size that is different from the first block size and matches a block size in the plurality of different block sizes according to a second Intra prediction mode selected from the set of Intra prediction modes.
Method and apparatus for encoding and decoding image through intra prediction
An apparatus for decoding an image, the apparatus including an entropy decoder configured to extract an intra prediction mode of a current block, and an intra prediction performer configured to determine a number of neighboring pixels located on a left side of the current block or an upper side of the current block, determine a location of one or more neighboring pixels, the intra prediction mode indicating a particular direction among a plurality of directions, the particular direction being indicated by using one of a dx number in a horizontal direction and a fixed number in a vertical direction, and the location of the one or more neighboring pixels being determined based on a shift operation.
Moving picture coding method, moving picture decoding method, moving picture coding apparatus, moving picture decoding apparatus, and moving picture coding and decoding apparatus
A moving picture coding includes: coding a first flag indicating whether or not temporal motion vector prediction is used; when the first flag indicates that the temporal motion vector prediction is used: coding a first parameter for calculating the temporal predictive motion vector; wherein when the first flag indicates that the temporal motion vector prediction is not used, the first parameter is not coded.
Image processing device for suppressing deterioration in encoding efficiency
The present disclosure relates to image processing device and method that can suppress the deterioration in encoding efficiency.An image processing device includes: a reception unit that receives encoded data in which an image with a plurality of main layers is encoded, and inter-layer prediction control information controlling whether to perform inter-layer prediction, which is prediction between the plurality of main layers, with the use of a sublayer; and a decoding unit that decodes each main layer of the encoded data received by the reception unit by performing the inter-layer prediction on only the sublayer specified by the inter-layer prediction control information received by the reception unit. The present disclosure can be applied to, for example, an image processing device.
Moving picture encoding apparatus and moving picture encoding method
The image encoding apparatus which encodes, on a per block basis, a current picture included in a moving picture includes: an encoder which outputs a first encoded stream including, in the following arrangement order, (i) slice data obtained by encoding a slice included in the current picture and including a plurality of block lines and (ii) a slice header including information indicating a code amount of each of the plurality of block lines; and an exchanger which exchanges arrangement positions of the slice data and the slice header in the first encoded stream.
Coefficient coding harmonization in HEVC
Coefficient coding for transform units (TUs) during high efficiency video coding (HEVC), and similar standards, toward simplifying design while enhancing efficiency. Elements of the invention include coefficient coding for TUs with up-right diagonal scans being modified, and selectively applying multi-level significance map coding.
Image processing apparatus and method
An image processing apparatus and a method for improving the coding efficiency for a quantization parameter are provided. The method includes steps of setting a predicted quantization parameter for a current coding unit by using multiple quantization parameters which are set for multiple surrounding coding units located around the current coding unit which is target of coding processing, and setting a difference quantization parameter indicating a difference value between the quantization parameter which is set for the current coding unit and the predicted quantization parameter.
Scalable video coding using inter-layer prediction of spatial intra prediction parameters
The coding efficiency of scalable video coding is increased by substituting missing spatial intra prediction parameter candidates in a spatial neighborhood of a current block of the enhancement layer by use of intra prediction parameters of a co-located block of the base layer signal. By this measure, the coding efficiency for coding the spatial intra prediction parameters is increased due to the improved prediction quality of the set of intra prediction parameters of the enhancement layer, or, more precisely stated, the increased likelihood, that appropriate predictors for the intra prediction parameters for an intra predicted block of the enhancement layer are available thereby increasing the likelihood that the signaling of the intra prediction parameter of the respective enhancement layer block may be performed, on average, with less bits.
Multi view image display apparatus and control method thereof
A multi view image display apparatus and a control method thereof are provided. The display apparatus includes an image inputter configured to receive an image, a display configured to display a multi view image that is generated based on the received image, and a processor configured to render views having different viewpoints based on a depth of the received image, expand a normal viewing area based on a cyclic mapping, adjust pixel values of the views so that a view jumping amount of a view jumping area occurring on a reverse viewing area due to the expansion of the normal viewing area is equal to a value, and generate the multi view image based on the adjusted pixel values.
Image processing system, image processing method, position determining method and display system
The present disclosure provides an image processing system, an image processing method, a position determining method and a display system. The image processing system includes a processing module configured to process at least a portion of original views in an original image to be displayed currently, so as to obtain a target image including the processed views, each processed view including an identifier; and a display module configured to display the target image, so as to enable a viewer to determine, in accordance with a combination of the identifiers in the target image, a position for viewing a 3D image. According to the present disclosure, it is able to guide the viewer to view the glassless 3D image at an extremely low cost.
Dynamic realignment of stereoscopic digital consent
Techniques and apparatuses for dynamic realignment of stereoscopic digital content is described herein. A computing device causes display of stereoscopic digital content, which includes one or more left images rendered for a left eye of a viewer and one or more right images rendered for a right eye of the viewer. An alignment pattern is generated within the stereoscopic digital content such that the alignment pattern is within the field of view of the viewer. The alignment pattern is designed to exploit the human vision system in order to avoid detection of the alignment pattern by the viewer. One or more cameras are controlled to detect the alignment pattern in the digital content. Then, the digital content is realigned by adjusting at least one of the left or right images of the digital content based on the detected alignment patterns.
Depth-map augmentation techniques
The techniques described herein segment objects represented in images using one or more depth maps, regardless of whether an initial depth map is of a threshold quality. To do so, the techniques contemporaneously generate, by a depth sensor, a depth map of an environment and capture, by an RGB camera, a color image of the environment. The techniques then determine whether the initial depth map is of the threshold quality. If so, the techniques use this depth map for performing segmentation on an image. If not, then the techniques generate a new depth in part by comparing an image captured by the depth sensor to the color image and performing block-matching between these images. That is, the techniques use the depth sensor and the RGB camera as stereo pair and fill in holes of the initial depth map based on the block-matching.
Processing a disparity of a three dimensional image
An apparatus for reducing the visibility of disparity estimation errors at edges, and in particular at overlays. The apparatus comprises a receiver (401) for receiving a three dimensional image represented by at least image values (brightness/contrast values) and a disparity value. A subset selector (403) evaluates an image property criterion for the image value for a group of pixels and determines a subset of pixels of the group of pixels for which the image property criterion is met. The criterion may for example reflect whether the pixel belongs to an image object edge. A distribution evaluator (405) generates a frequency distribution for disparity values of the subset of pixels and an analyzer (407) determines a shape property for the frequency distribution (the presence of a peak). An adaptor (409) determining a disparity remapping in response to the shape property and a remapper (411) modifies disparity values of the three dimensional image by applying the disparity remapping. The approach may e.g. reduce image depth when overlay graphics is likely to be present.
Image generation device and imaging device
An imaging system serving as an image generation device is provided with: a random optical filter array that has a plurality of types of optical filters and a scattering unit; photodiodes that receive light transmitted through the random optical filter array; an AD conversion unit that converts the light received by the photodiodes, into digital data; and a color image generation circuit that generates an image, using the digital data and modulation information of the random optical filter array, in which the scattering unit is located between the plurality of types of optical filters and the photodiodes, and in which the scattering unit includes a material having a first refractive index, and a material having a second refractive index that is different from the first refractive index.
Abandoned object detection apparatus and method and system
An abandoned object detection apparatus and method and a system where the apparatus is configured to match each pixel of an acquired current frame with its background model, mark unmatched pixels, taken as foreground pixels, on a foreground mask, add 1 to a foreground counter to which each foreground pixel corresponds, and update the background model; for each foreground pixel, mark a point corresponding to the foreground pixel on an abandon mask when a value of the foreground counter to which the foreground pixel corresponds is greater than a second threshold value; and for each point on the abandon mask, process the abandon mask according to its background model and buffer background or foreground mask. Hence, when the abandoned object leaves and how long it stays may be judged, and interference of occlusion and ghost may also be avoided, thereby solving a problem of illegal road occupation identification.
Aircraft in-flight entertainment system with enhanced passenger control units and associated methods
An aircraft in-flight entertainment (IFE) system includes an entertainment source, passenger seatback displays coupled to the entertainment source, and passenger control units. Each PCU is associated with a respective seatback display and includes a touchpad configured to recognize multiple simultaneous touch points.
Low bandwidth video
Devices, systems and methods are disclosed for enabling a standby mode during videoconferencing, the standby mode having reduced bandwidth consumption and configured to indicate whether a person is present while protecting a privacy of the person. For example, a local device may capture low resolution video data at a low sampling rate, downsample the video data and send the downsampled video data to a remote device, which may upsample the downsampled video data and display the upsampled video data on a display. The upsampled video data indicates an environment of the local device while blurring details, enabling a user of the remote device to identify movement or activity while maintaining privacy for anyone near the local device. The local device may identify activity, motion and/or objects of interest in the video data and may apply a special effect emphasizing the activity, motion and/or objects of interest.
Standby control circuit and display device
The invention discloses a standby control circuit and a display device. The standby control circuit includes a standby module, at least one power board, and a transistor switch control module comprising at least one transistor switch whose number is equal to that of the at least one power board, each transistor switch is connected between one power board and a mains supply input terminal, the standby module is configured to generate a trigger signal and send the generated trigger signal to each transistor switch, and each transistor switch is configured to be turned on upon receipt of the trigger signal sent from the standby module so as to connect the power board connected thereto with the mains supply input terminal.
Image processing device, method for controlling image processing device, and computer-readable storage medium storing program
A captured image and a blank area generated by a difference between an aspect ratio of the image and an aspect ratio of a screen are displayed on the screen. An item is located on the image and is displayed on the screen when the item is set to be superimposed and recorded on the image, and the item is located on the blank area and is displayed on the screen when the item is set to be recorded without being superimposed on the image. The image on which the item is superimposed is stored in a memory unit when the item is set to be superimposed and recorded on the image, and the image on which the item is not superimposed is stored in the memory unit when the item is set to be recorded without being superimposed on the image.
Imaging apparatus including unit pixel, counter electrode, photoelectric conversion layer, and voltage supply circuit
An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
Image capturing apparatus
An image capturing apparatus is provided with a pixel array that has a plurality of image forming pixels and a plurality of focus detection pixels, a readout unit that reads out a pixel signal from the pixel array, an A/D conversion unit that has a first mode for A/D converting the pixel signal read out by the readout unit with a first resolution and a second mode for A/D converting the pixel signal read out by the readout unit with a second resolution that is higher than the first resolution, and a control unit that switches between the first mode and the second mode in accordance with the pixel signal read out from the pixel array.
Solid-state image sensing apparatus
In a solid-state image sensing apparatus of an addressing method, a clock-conversion part generates a high-speed clock signal having a frequency two times or more the frequency of a low-speed clock signal. A signal processing part receives 10-bit pixel data through a horizontal signal line, performs predetermined signal processing, and passes parallel-format data to a switching part. The switching part selects each one bit of the parallel-format 10-bit data in a predetermined sequence to output from an output terminal using the high-speed clock signal from the clock-conversion part as a switching command, thus converts the parallel-format data into serial-format data, and passes it to an output buffer. The output buffer externally outputs differential output of normal video data and inverted video data individually from output terminals. Accordingly, the problems in power consumption, noises, and unnecessary radiation are solved, and higher-speed output is achieved.
Analog-to-digital converters and image sensor having the same
An analog-to-digital converter includes a comparator, a switch, and a counter circuit. The comparator is configured to generate a comparison signal by comparing an analog signal received through a first signal line and a reference signal received through a second signal line. The switch is coupled between the first signal line and the comparator. The switch is open before the analog signal is applied to the first signal line to disconnect the first signal line from the comparator, and is closed after the analog signal is applied to the first signal line to provide the analog signal to the comparator. The counter circuit is configured to generate a digital signal corresponding to the analog signal by performing a count operation in synchronization with a count clock signal based on the comparison signal.
Solid-state imaging apparatus and method of driving the same
A solid-state imaging apparatus has: a signal readout circuit including a charge storage region connected to a photoelectric conversion region, and a reset transistor connected at one of source and drain to the charge storage region; and a negative feedback circuit that feeds back an output of the signal readout circuit in a negative feedback manner to the other of the source and drain of the reset transistor. A reset operation for discharging a charge stored in the charge storage region includes a first period in which the negative feedback circuit is OFF and a second period which occurs after the first period and in which the negative feedback circuit is ON. In the first period, the reset transistor changes from OFF to ON and then to OFF. In the second period, such a reset transistor control voltage is applied that makes the reset transistor to gradually change to ON.
Iris image acquisition system
An iris image acquisition system comprises an image sensor comprising an array of pixels including pixels sensitive to NIR wavelengths; at least one NIR light source capable of selectively emitting light with different discrete NIR wavelengths; and a processor, operably connected to the image sensor and the at least one NIR light source, to acquire image information from the sensor under illumination at one of the different discrete NIR wavelengths. A lens assembly comprises a plurality of lens elements with a total track length no more than 4.7 mm, each lens element comprising a material with a refractive index inversely proportional to wavelength. The different discrete NIR wavelengths are matched with the refractive index of the material for the lens elements to balance axial image shift induced by a change in object distance with axial image shift due to change in illumination wavelength.
Method and apparatus for creating motion effect for image
A method includes maintaining images and associated video streams; detecting a swipe gesture of a user on a touch sensitive display, wherein the swipe gesture comprises direction and speed information; and selecting an image based on the direction information of the swipe gesture. The method includes adjusting a playback of an associated video stream based on the direction and the speed information of the swipe gesture; providing the associated video stream on the display during the swipe gesture, for creating a motion effect relating to the image; and providing the image on the display after the swipe gesture.
Compression and decoding of single sensor color image data
A method is described to greatly improve the efficiency of and reduce the complexity of image compression when using single-sensor color imagers for video acquisition. The method in addition allows for this new image compression type to be compatible with existing video processing tools, improving the workflow for film and television production.
Image display system, information processing apparatus, image display method, image display program, image processing apparatus, image processing method, and image processing program
An image display system includes an image acquisition unit which acquires an image, an area setting unit which sets a plurality of viewing areas to which the image is to be assigned according to a direction of the image, an image assignment unit which assigns the image to each of the plurality of viewing areas, an operation determination unit which discriminates an operation in a first viewing area among the plurality of viewing areas each having the image assigned thereto, and a display control unit which displays the image in the first viewing area and the image in a second viewing area other than the first viewing area among the plurality of viewing areas concurrently based on a result of the discrimination by the operation determination unit.
Display control apparatus, display control method, and program
There is provided a display control apparatus including an external memory accommodating unit for accommodating a removable external memory; a database recognizing unit for recognizing a database stored in the external memory, the database being recorded with an image stored in the external memory and information related to the image in correspondence to each other; a display method setting unit for setting either display method of a stored first display method or a second display method of displaying the image stored in the external memory without using the database based on a recognition result of the database recognizing unit; and a display controlling unit for displaying the image stored in the external memory by the display method based on the set display method.
Imaging apparatus and control method
An imaging apparatus is provided that includes a correction unit configured to optically correct image shake by moving a lens or an imaging element; a first detector configured to detect an angular velocity of the imaging apparatus; a second detector configured to detect a motion vector from a captured image; a calculator configured to calculate an object angular velocity on the basis of the angular velocity of imaging apparatus and the motion vector; a third detection unit configured to detect a cycle of a motion of the object on the basis of the object angular velocity; and a processor configured to detect a cycle of a motion of the object on the basis of the object angular velocity and set an exposure timing at the time of panning on the basis of the cycle of the motion of the object and correct image shake of the object by driving the correction unit.
Multi-sensor image stabilization techniques
An aerial vehicle may include a first sensor, such as a digital camera, having a lens or other component that includes a second sensor mounted thereto. Information or data, such as digital images, captured using the second sensor may be used to determine or predict motion of the lens, which may include components of translational and/or rotational motion. Once the motion of the lens has been determined or predicted, such motion may be used to stabilize information or data, such as digital images, captured using the first sensor, according to optical or digital stabilization techniques. Where operations of the first sensor and the second sensor are synchronized, motion of the second sensor may be modeled based on information or data captured thereby, and imputed to the first sensor.
Panoramic windshield viewer system
Forward oblique blind spots of a vehicle, generated by the vehicle's front windshield pillars, are eliminated by provision of a panoramic windshield viewer system, thus allowing the driver to operate the vehicle without having his view impaired by visual obstructions that would otherwise be caused by the windshield pillars.
Medical imaging system and method for obtaining medical image
A medical imaging system is disclosed in the present invention, including a medical image acquisition device and medical image processing system. Said medical image acquisition device includes: an acquisition apparatus for acquiring image signals in a medical process from a first viewing angle of a doctor; and a signal processing apparatus for performing a first processing on the acquired image signals and then sending digital image signals in the form of data stream. Said medical image processing system includes: a signal transmission module for receiving a data stream of digital image signals from a medical image acquisition device; and an image processing module for processing the received data stream of digital image signals in real time according to a predetermined image processing method so as to obtain optimized digital medical image signals.
Imaging support apparatus, imaging support method, and computer program product
According to an embodiment, an imaging support apparatus includes a memory and a processor. The processor acquires a plurality of images obtained by imaging a face of a subject by a plurality of imaging devices. The processor extracts a face area from each of the plurality of images. The processor specifies a certain imaging device as an imaging device suitable for imaging the face of the subject face among the plurality of imaging devices based on a position of the face area in each of the plurality of images. The processor causes a suggestion device to suggest a direction toward which the face of the subject is to be directed for imaging the face of the subject by the certain imaging device.
Imaging device and method for automatic focus in an imaging device as well as a corresponding computer program
An imaging device, and a method for automatic focus in said imaging device is disclosed. The imaging device comprises a first imaging system with a first lens system, a second imaging system with a second lens system, and an autofocus controller. The imaging device and the method are respectively able to perform a step by step autofocus search with the first lens system and the second lens system on the basis of a search parameter. Thereby, the autofocus controller obtains a result of an objective function for each of the first lens system and the second lens system after each autofocus search step, and updates the search parameter depending on the obtained results of the objective function for each of the first lens system and the second lens system.
Autofocusing a macro object by an imaging device
A method and device for autofocusing a macro object by an imaging device is provided. The imaging device includes a lens. In one aspect, the method includes: providing two or more focus perimeters in a viewfinder; obtaining a group of focus values, the group of focus values including at least one focus value associated with each of the two or more focus perimeters, each focus value in the group of focus values including a magnitude and a direction for causing movement of the lens; comparing focus values in the group of focus values to identify a macro object focus value; and in response to identifying the macro object focus value, determining autofocus settings based on the macro object focus value.
Intelligent presentation of surveillance information on a mobile device
Embodiments disclosed herein provide methods, systems, and computer readable storage media for intelligently presenting surveillance information on a mobile device. In a particular embodiment, a method provides receiving video streams each comprising video captured of a location of a premises under surveillance. The method further provides determining a device location of the mobile device in the premises and selecting at least one video stream of the video streams based on the device location and the location captured in the video of each video stream. The method also provides transferring the at least one video stream to the mobile device.
Notifications for control sharing of camera resources
Methods and devices for providing notifications for camera resource availability may include receiving requests from a plurality of applications for control of a camera resource. The methods and devices may include providing control of the camera resource to a selected application from the plurality of applications when another application does not have control of the camera resource. The methods and devices may include sending a control notification to one or more applications, including at least one of the plurality of applications indicating that the selected application has control of the camera resource. The methods and devices may include sending an availability notification to the one or more applications, including the at least one of the plurality of applications indicating that the selected application has released the control of the camera resource.
Position detection device, position detection method, and storage medium
An image processing device includes a detection unit configured to detect an object from an image captured by each of a plurality of image capturing devices, a determination unit configured to determine whether the object is detected by two image capturing devices or more in the image capturing devices, a first estimation unit configured to estimate, when the object have been detected by the two image capturing devices or more, a three-dimensional position and information on a height of the object based on a detected position where the object is detected in an image captured for each of the two image capturing devices and positions and orientations of the two image capturing devices, and a second estimation unit configured to estimate, when the object have been detected by a single image capturing device, the three-dimensional position of the object.
A camera module includes a PCB (Printed Circuit Board) installed with an image sensor, a base mounted on the PCB, and a bobbin reciprocatingly mounted above the base. A bottom elastic member is fixed to the base to support the bobbin, and a terminal is installed at the base, one end of which is conductively connected to the PCB and the other end of which is conductively connected to the bottom elastic member at a solder part. A solder cut-off part is formed at the base to cut off movement of overflowing solder from the solder part.
Camera module and electric holder and assembling method thereof
A camera module includes a lens, a photosensitive chip and an electrical holder. The electrical holder has an integrated circuit that the electrical holder serves as an integration of a base and a PCB in a conventional camera module, wherein the electrical holder not only forms an assembling unit for connecting a driver and an optical lens but also forms an electrical connection unit for electrically connecting to the driver, a photosensitive chip and a flexible circuit board with each other, so as to minimize an overall size of the camera module.
Method and an electronic device for calibrating a plenoptic camera
The present disclosure concerns a method for calibrating a plenoptic camera. The plenoptic camera includes a lenslet array placed between a main lens and a photosensor, the lenslet array having a plurality of lenslets. The method is remarkable in that it includes obtaining a white image W and a model that describes light scene occlusion induced by the main lens and each lenslet. For a given pixel of the photosensor, where the model is represented by a set of parameters, obtaining a first subset of parameters values from the set of parameters in the model and obtaining a second subset of parameters value from the set of parameters in the model by performing a maximum likelihood estimation method based on the model, the white image and the first subset of parameters values, and where a union of the first and the second subsets of parameters corresponds to the set of parameters.
Video processing apparatus
A video processing apparatus includes a memory configured to store a plurality of video signals, a combining unit configured to combine the video signals to output a combined video signal, a synchronizing unit configured to synchronize one of the video signals and the combined video signal, and a control unit configured to control an output timing of the combined video signal based on states of the other video signals.
Image processing apparatus, printer apparatus, and image processing method
An image processing apparatus controls an operation of a printer apparatus that prints an image on a sheet being attachable to skin. The image processing apparatus includes: an image acquirer that acquires a skin image; an image analyzer that extracts, from the skin image, a discolored region differing in color from surrounding skin by at least a predetermined level, and color of the surrounding skin; a print type determiner that determines, based on at least one of color and size of the discolored region, a print type that includes at least one of use/nonuse of a base material containing a white pigment, a particle shape of a print material used in the printing, a scheme of the printing, and use/nonuse of lamé powder; and a printing controller that outputs, to the printer apparatus, image data having a content of printing a print material in the surrounding color, on a region corresponding to the discolored region in the sheet, and controls an operation of the printer apparatus according to the determined print type.
Data processing device
A data processing device includes first and second timing signal generators, a phase difference control unit, first and second output units, a data generating unit, a data generating unit, and an error determination unit. The phase difference control unit controls a phase difference between the first and second timing signals to be a predetermined phase difference. The first output unit outputs a first data at a timing based on the first timing signal. The data generating unit generates a second data by a prescribed unit based on the first data. The second output unit outputs the second data by the prescribed unit at a timing based on the second timing signal. The error determination unit determines there is an error when an Nth unit of the second data has not been generated at a timing at which the Nth unit of the second data is to be output.
Data transmission system and data transmission method
Provided is a data transmission system that accurately performs transmitting and receiving of job data. A cloud server transmits job data, a vibration-detection sensor of a gateway detects vibration that is applied to the gateway, a vibration-detection sensor of an MFP detects vibration that is applied to the MFP, the gateway stores job data that is received from the cloud server in memory of the gateway, and then transmits the job data to the MFP. Moreover, the gateway, when the value of vibration-detection data of the vibration-detection sensor is equal to or less than a specified threshold value, stores the job data from the cloud server in memory, and when the value of vibration-detection data of the vibration-detection sensor equal to or less than a specified vale, transmits the job data that is stored in memory to the MFP.
Steganographic camera communication
Identifiers or references to supplemental information or content regarding images may be steganographically encoded into the images. The identifiers or references may be encoded into least significant bits or less significant bits of pixels within the image that may be selected on any basis. The identifiers or references may include alphanumeric characters, bar codes, symbols or other features. When an image is captured of an image having one or more identifiers or references steganographically encoded therein, the identifiers or references may be interpreted, and the supplemental information or content may be accessed and displayed on a computer display. In some embodiments, the supplemental information or content may identify and relate to a commercial product expressed in an image, and may include a link to one or more pages or functions for purchasing the commercial product.
Detecting a folded page in a digital image of a scanned document
What is disclosed is a system and method for detecting a folded page in a digital image of a scanned document. In one embodiment, the present method involves receiving a digital image of a document which has been converted to a digitized form using a document scanning device. The digital image is segmented horizontally and vertically to obtain a plurality of image segments. An edge profile is generated for the horizontal and vertical segments. A determination is then made, based on a comparison of the profiles, whether a page fold exists in the digital image. If a page fold is determined to exist in the digital image, the user is notified and the digital image is not sent to a print engine. Otherwise, the digital image is printed.
Profile generating apparatus and profile generating method
A profile generating apparatus which generates a profile includes a transmissive color measurement value acquiring portion that acquires a transmissive color measurement value in a case in which light is transmitted to the medium on which a patch is formed, a reflective color measurement value acquiring portion that acquires a reflective color measurement value in a case in which light is reflected from a front surface of the patch, and a profile generating portion that generates the profile based on the transmissive color measurement value and the reflective color measurement value.
Computer-implemented system and method for delivery of group messages
A computer-implemented system and method for delivering group messages is provided. Users signed on to a discussion group that is associated with a discussion group ID are identified. One of the signed-on users is designated as a moderator. A voice message is received and the discussion group ID is extracted from the voice message. The voice message is provided to the moderator and further provided to the signed-on users in the discussion group upon acceptance of the voice message by the moderator.
System and method for allocation and management of shared virtual numbers
Aspects of the present disclosure provide a system and method in which allocation and management of shared virtual numbers is achieved. In an embodiment, a request is received from an external server, over a network, for allocation and de-allocation of virtual numbers among agents and customers. Thereafter, a first virtual number is allocated and mapped between a first agent and a first customer, and the same first virtual number is also allocated and mapped between a second agent and a second customer. Such allocation and mapping enables communication between corresponding agents and customers. In addition to the allocation, a number may also be de-allocated. For example, the first virtual number mapping between the first agent and first customer can be de-allocated, thereby deactivating the first virtual number for a predetermined time, during which time the first virtual number is not allocated to another combination of a customer and an agent.
System and method for keyword-based notification and delivery of content
Providing keyword-based notification and content includes monitoring, a communication interface, the communication interface configured to transport a communication between an agent communication device and a user communication device; recognizing an occurrence of a keyword in the communication; wherein the keyword is stored in a database; and retrieving from the database, an information related to the keyword, wherein the database comprises: a first memory area configured to store a mapping of keywords to keyword information; and a second memory area configured to store a mapping of a user identifier associated with a user to information related to how keyword information should be delivered to the user associated with the user identifier. Ultimately the information related to the keyword is transmitted to one of the agent communication device or the user communication device.
Live call debugging and monitoring tool for an interactive voice response unit
A call monitoring and debugging tool is disclosed that allows a developer to test an interactive voice response (“IVR”) application comprising a plurality of menu modules. The developer can initiate a call to the IVR and is presented on a computer display a set of variable identifies and corresponding values used by the IVR application in real time. The developer can view a graphical representation of a subset of the plurality of menu modules and view a representation of the navigation of the caller through the IVR application. The developer can also view a current set of variable identifiers used by the IVR and their corresponding values in real time. Finally, the developer can invoke one of several navigation control functions to force navigation of the call in the IVR application, including forcing the call to a previously encountered menu module.
Emergency services routing proxy cluster management
Systems and methods for clustering emergency services routing proxies are provided. The described features allow a group of ESRPs running as individual servers or a group of virtual servers, to be referenced using a single URI. In one implementation, an emergency services routing proxy device includes an emergency services routing proxy node configured to route a call to a downstream entity, the call received from an upstream entity. The device further includes a cluster manager configured to receive registration information from the emergency services routing proxy node, the registration information including a routing service identifier. The cluster manager may be further configured to identify the emergency services routing proxy node for call routing based on a comparison of an identifier included in the call with the routing service identifier.
System and method for handling repetitive calls at call center
A call center answers calls from callers reporting incidents and dispatch responders in response thereto. A computing system at the call center receives a particular call from a caller regarding a particular incident, and determines whether the particular call is an original call that is reporting the particular incident for a first time to the call center, or is a repetitive call that is reporting the particular incident after the original call for the particular incident has already been received by the call center. If an original call, the computing system forwards the particular call to an agent at the call center for further attention. However, if a repetitive call, the computing system diverts the particular call from the agent at the call center. Accordingly, the resources of the call center may be concentrated on original calls and away from repetitive calls.
Identifying and controlling unwanted calls
Systems, methods and tools for leveraging computer networks, data sharing, data analytics and sentiment analysis to control the receipt of unwanted telephone calls and preventing unwanted telephone calls from disturbing a user through the implementation of contacts list and/or a shared table of unique calls. Contact lists and shared tables of unique calls may identify incoming calls that may be directed to the user or filtered out based on whether the incoming call's number is in the user's contact list and/or based on the past experiences of the individual users engaging with the incoming caller. Embodiments may track the past call durations for unique incoming number and track the sentiment of users during these calls and use the collected call data and sentiment determine whether subsequent incoming calls from a phone number should be forwarded to the user's telephone enabled device or automatically responded to with further instructions.
System and method for detecting phone frauds or scams
A phone frauds or scams detecting system comprises a first detecting unit for obtaining callers' characteristics and a second detecting unit for interacting with callers and obtaining callers' additional characteristics. The system determines frauds or scams based on the callers' characteristics and the callers' additional characteristics and plays commercial advertisements to the callers if one or many frauds or scams determined.
System and method of call screening
A method includes receiving, at a device, a notification of a call from an application server and displaying, at the device, a pop-up view based on the notification, where the pop-up view includes a screen call option. The method also includes receiving, at the device, a selection of the screen call option and, in response to the selection of the screen call option, displaying a call screening view, where the call screening view includes a plurality of call screening action options. The method further includes receiving a second selection of a particular call screening action option of the plurality of call screening action options and handling the call based on the particular call screening action option.
Ported and disconnected wireless number distinction based on number portability database status and opted-in file status
Providing ported and disconnected wireless number distinction, comprising: receiving, by at least one processor, an aggregator data file containing at least one of at least one wireless number that has been ported and at least one wireless number that has been disconnected, accessing, by the at least one processor, a number portability database, receiving, by the at least one processor, at least one of text and voice call opted-in data file, determining, by the at least one processor, a conjunction of the aggregator data file and number portability database, the conjunction defining a ported data file, determining, by the at least one processor, a commonality of the at least one of a text and a voice call opted-in data file and the ported data file, the commonality defining a ported opted-in data file, recording, in at least one memory, a status of the commonality of the ported opted-in data file as opted-in wireless numbers, wherein the at least one processor and at least one memory are communicably coupled and reestablishing, by the at least one processor, based on the opted-in wireless numbers at least one subscription service to at least one mobile device.
Near field communication enhanced computing systems
Technologies are disclosed herein for utilizing near field communication (“NFC”) to improve the security, performance, and configuration of computing systems. In particular, NFC can be utilized to power an NFC-equipped server computer on or off, to log directly into an operating system executing on the NFC-equipped server computer, to stream firmware debugging data from an NFC-equipped server computer to an NFC-equipped mobile device, to initiate the update or recovery of firmware, to provide hardware inventory data, or to pair hardware devices. Firmware debugging data can also be streamed from a firmware to an NFC-equipped mobile device. NFC can also be utilized to disable functionality provided by a mobile device while the device is in motion, such as when a user of the mobile device is operating a motor vehicle.
Communication system selection
A communication device may have multiple units for communicating through multiple channels. The communication device may also include a display for displaying various screens. The communication device may display a function settings screen for selecting a communication unit to be used for communication with an external device. The communication device may determine whether an external device is already specified. The communication device may also display a device search screen identifying one or more external devices that can communicate with a particular communication unit of the communication device. Further, the communication device may display an updated function settings screen that indicates which communication unit is set to be used for communication with an external device and that identifies which external device is to receive communications from such communication unit.
Process for wireless connection of mobile devices
A device for a vehicle for setting up a wireless communication link to a mobile apparatus. The device includes a radio device and detects time periods during which a respective mobile apparatus from group of mobile apparatuses is located within range of the radio device for setting up the wireless communication link. The device detects the respective time period for each of the mobile apparatuses within range. The device sets up the wireless communication link to at least one mobile apparatus as a function of the detected time periods.
Network connectivity for constrained wireless sensor nodes
Wireless sensor nodes for enabling network connectivity in a wireless sensor network system are disclosed herein. An exemplary method includes receiving a Lightweight Machine-to-Machine (LWM2M) network packet from a network node over a network; using a media access control (MAC) layer to route the LWM2M network packet to a sensor node when a destination Internet Protocol (IP) address specified in the LWM2M network packet matches a virtual IP address; and using a network layer to route the LWM2M network packet to the sensor node when the destination IP address does not match a virtual IP address.
Management of transmission control blocks (TCBs) supporting TCP connection requests in multiprocessing environments
A source system executing applications in a multiprocessing environment supports transmission control protocol (TCP) connections. In an embodiment, the source system maintains a corresponding list of transmission control blocks (TCBs) for each processing entity. When an application executing on a first processing entity in the source system requests a new TCP connection to a destination system, an open TCP connection request is transmitted to said destination system on a network. A first TCB for the new TCP connection may be formed, indicating that the connection is in the process of being established. The connection may be allocated to a second processing entity, and the first TCB may be migrated as a second TCB, which is included in a list of TCBs associated with the second processing entity.
Communication packet header data compression
A data communication system compresses packet headers. A transmitter executes state machines to process a data packet and determine if a transmitter state machine is transferring Interdependent Machine Output (IMO) data. The transmitter generates an IMO vector that indicates if any IMO data is in the data packet. If IMO is present, then the transmitter augments the IMO vector to indicate the individual transmitter state machines that transferred the IMO data. The transmitter transfers the data packet with the IMO vector to a receiver. The receiver processes the IMO vector to determine if any IMO data is transferred in the data packet. If IMO data is transferred, then the receiver processes the augmented IMO vector to transfer the IMO data to individual receiver state machine that correspond to the transmitter state machines that transferred the IMO data.
Persistent query dispatch and execution architecture
The disclosed subject matter includes systems, methods, and computer readable medium for improving performance of a computer data system. An electronic request for a remote query processor (RQP) can be sent from the persistent query controller to a remote query dispatcher (RQD) executing on a query server computer. The request can include parameters for configuring the RQP and an operating environment for the RQP. The RQD can automatically attempt to allocate an isolated operating environment for the RQP and to prepare the RQP on the query server computer. When the RQP is prepared, performing: providing the controller with an address assignment of the RQP; automatically connecting from the controller to the RQP via a network; transmitting a persistent database query electronically from the controller to the RQP; publishing persistent database query configuration information including a query state and the RQP address assignment; and connecting from a client to the RQP.
Delegating database queries
The disclosure is directed to pushing data updates to client computing devices (“clients”) in real-time. Clients can obtain data from a data storage layer by sending queries to the data storage layer that will return data compatible with the client's local data model. These queries are stored in a database and the identifier for the query (“query ID”) is used instead of the query itself. In the query stored in the database, a marker is used as a proxy for a content ID of the content to be retrieved. When querying, both the query ID and the content ID are passed to the data storage layer. The query stored with the query id is loaded, the marker is substituted with the content ID, and then executed.
Processing requests for multi-versioned service
Processing a job request for multiple versions of a distributed computing service. The service processing node does this by at least interleavingly (e.g., via time sharing with rapid context switching, or by actually concurrently) running a first runtime library associated with a first service version of the distributed computerized service and a second runtime library associated with a different service version of the distributed computerized service. While running the first runtime library, job requests of a first service version may be at least partially processed using a first set of one or more executables that interact with the first runtime library. While running the second runtime library, job requests of a second service version may be at least partially processed using a second set of one or more executables that interact with the second runtime library.
Customized profile summaries for online social networks
Among other things, embodiments of the present disclosure discussed herein may be used to analyze the online social network profiles of users of the social network and generate customized summaries of the profiles. Among other things, the embodiments of the present disclosure help quickly and efficiently generate an intuitive and personalized summary of a user's profile, even where a user's profile contains a relatively lengthy amount of content.
Cache management on high availability routers in a content centric network
One embodiment provides a forwarding device, comprising a plurality of components, including one or more line cards and a supervisor card. An ingress line card receives a content object with a name. In response to determining a distributed storage technique, a selected line card stores the content object in a location which is a cache of the selected line card. The selected line card creates a first entry in a table of the selected line card, wherein the first entry indicates the content object name and the location in which the content object is stored. The selected line card transmits a first notification message to other components, wherein the first notification message indicates the content object name and the location indicated in the first entry. A respective other component creates a second entry in a table for the respective other component, wherein the second entry matches the first entry.
Response header invalidation
Systems, methods, and other embodiments associated with content invalidation are described. One example method includes parsing a response to identify an invalidation directive. Then if identified, invalidating cached content from a cache memory that corresponds to the content identified by an invalidation directive.
Methods and apparatus to monitor media presentations
Methods, apparatus, systems and articles of manufacture to monitor media presentations are disclosed. An example method includes providing a software development kit (SDK) to an application developer. The SDK is to enable the application developer to create a monitoring enabled application. A panelist identifier is transmitted in response to a request from a registrar executed by the media device. The request includes demographic information associated with a user of the media device. The panelist identifier is stored in a shared memory of the media device and is accessible to the monitoring enabled application. The monitoring enabled application is to collect data if the panelist identifier is in the shared memory and to disable collection of the data if the panelist identifier is not in the shared memory. The data is collected from the monitoring enabled application.
Method for tracking content and electronic device using the same
An apparatus and method for tracking content are provided. The apparatus is an electronic device that includes a communication circuit and a processor electrically connected to the communication circuit. The processor may be configured to receive information about a tracking target item from an external electronic device, to receive content from a content provider, determine a degree of semantic similarity between the tracking target item and the content, generate at least one update related to the tracking target item, based on the degree of semantic similarity, and send the at least one update to the external electronic device.
Evaluating the authenticity of geographic data based on spatial distribution
A system and method for analyzing media requests and evaluating the authenticity of geographic data associated with the media requests. A mobile device may use media requests to retrieve media items that are displayed to a user. A media request may include geographic data with latitude and longitude information and entity data identifying a user, application, mobile device, or combination thereof. The system may analyze the geographic data to identify locations and may analyze the entity information to identify user activity. The user activity may be internet activity of an application running on another device (e.g., user's desktop). The system may then correlate the user activity (e.g., accessing a venue web site) with the geographic locations (e.g., venue locations) to evaluate the authenticity of the geographic data associated with the mobile requests.
Method and apparatus for managing communication activities of a communication device
Aspects of the subject disclosure include, for example, selecting a first communication device of the plurality of communication devices to analyze activities of the first communication device, presenting at a device activity information associated with the activities of the first communication device, facilitating an exchange of messages between the device and the first communication device, receiving a request from the device to transfer control of the first communication device to the device responsive to the device receiving an unsatisfactory response from the first communication device, and receiving control information from the device to adjust an operational aspect of the first communication device. Other embodiments are disclosed.
Data transfer in a system of connected things
The invention relates to a method, a system and apparatuses for establishing application virtual data paths (VDP) over a device gateway, a network of interconnect end-points and an application server gateway for the purpose of forwarding application data from an Internet of Things (IoT) device to its destination application server based on the unique IoT device identity, while the IoT device, the device gateway and the network of end-points are unaware of the destination application server.
Methods and systems for detecting a material source using a server and networked sensors
A large system of networked sensors requires the management and distribution of sensor data via an intelligent server (SmartServer). In this network of sensors, one or more SmartServers use the underlying processes of source detection to optimize network data flow.
Device and related method for dynamic traffic mirroring
A function is provided in a network system for the dynamic mirroring of network traffic for a variety of purposes including the identification of characteristics of the traffic. Multiple criteria are established for when, what and where to mirror the traffic. The criteria include what frames of traffic to mirror, what portions of the selected frames to mirror, one or more portals through which to mirror the selected frames, a destination for the mirroring and the establishment of a mirror in a device to carry out the mirroring. The criteria may also include when to stop the mirroring. The mirroring instructions can be changed based on the detection of a triggering event, such as authentication, device type or status, ownership of an attached function attached to the device, flow status, but not limited to that. The function may be established in one or more devices of the network.
Running software application with dynamic action delegation
A solution for running a software application on a computing machine is provided, which includes registering a capability of a delegation component to execute at least one action on the computing machine, each one defined by at least one characteristic thereof, receiving a request for executing the at least one action from the software application by the delegation component, the request being bound to the delegation component at run-time according to the capability registration thereof, and delegating, by the delegation component, the execution of the at least one action to at least one local component of the computing machine being capable of executing at least part of the at least one action and/or to at least one remote component of at least one remote computing machine being capable of executing at least part of the at least one action according to an availability of the at least one local component.
Techniques for managing a remote web client from an application on a mobile device
Techniques for managing a remote web client from an application on a mobile device are described. In one embodiment, an apparatus may comprise a messaging application operative on the processor circuit to receive a request from a remote web browser, the request for the remote web browser to receive messaging updates from the messaging application; establish an encrypted connection between the messaging application and the remote web browser, receive a messaging update at the messaging application; and transmit the messaging update from the messaging application to the remote web browser. Other embodiments are described and claimed.
Content supply device, content supply method, program, and content supply system
The present disclosure relates to a content supply device, a content supply method, a program, and a content supply system that make it possible to extend an adaptive streaming technique employing the DASH and supply content through a plurality of different delivery paths According to a first aspect of the present disclosure, there is provided a content supply device that supplies a plurality of pieces of streaming data that include content of a same subject and differ in an attribute according to an adaptive streaming technique, the content supply device including: a supply unit configured to supply the plurality of pieces of streaming data to a reception side via a plurality of different networks; and a metafile generating unit configured to generate a metafile including an acquisition destination of a manifest file in which a QoS parameter for selecting the plurality of pieces of streaming data to be supplied by the reception side and a condition value of the QoS parameter are described and supply the metafile to the reception side. The present disclosure can be applied to a system that delivers content in a streaming manner.
Adaptive multi-control unit load balancing in a voice-over-IP system
A Voice-over-IP (VOIP) system includes a plurality of multi control units (MCUs), in which a first MCU hosts a VOIP session. A method for recommending an MCU to host the VOIP session includes receiving MCU status associated with performance of each of the first MCU and a second MCU included in the VOIP system. The method further includes determining, based on the first and the second MCU status, that hosting the VOIP session on the second MCU can improve a VOIP system metric. According to the method, a recommendation is communicated to transfer hosting the VOIP session to the second MCU.
A reception terminal is provided in a communication system including a transmission terminal that transmits packets in a real-time stream and a transfer terminal that caches and transfers packets transmitted from the transmission terminal. The reception terminal includes a receiver which receives packets, and circuitry which obtains a first available band between the reception terminal and the transfer terminal and a second available band between the reception terminal and the transmission terminal. The reception terminal includes a transmitter which transmits requests to the transfer terminal at a frequency that is based on the first available band, wherein the frequency defines how often the requests are transmitted and the requests trigger transmission of packets from the transfer terminal to the reception terminal in the first available band. The transmitter notifies the transmission terminal of the second available band to trigger transmission of packets from the transmission terminal in the second available band.
Systems and methods for improving media data communications over a network
Systems and methods are disclosed for improving transmission of media data contained in data packets in a media session established over a network. According to certain embodiments, a first server can determine that at least one media quality metric associated with the media session is below one or more pre-determined thresholds, the at least one media quality metric being indicative of a media quality. The first server can also obtain identification information associated with the media session, provide the identification information to a second server, receive, from the second server data, related to a transmission of data packets, and media data contained in the data packets. The first server can determine configurations based on the received data related to a transmission of data packets. At least one of the first and second servers can be configured based on the determined configurations to provide a pre-determined media quality.
Communication node, system, and method for optimized dynamic codec selection
The present invention is directed towards a communication node, a system, and a method for dynamically switching a first codec to a second codec for a communication session. The communication node, to implement the method, can be operably connected to communication endpoints, a codec database, at least one second communication node, and a destination node. The communication node monitors the network within which the communication session originates to detect if a network event has occurred, and if detected, obtain the catalog of available and supported codecs. The communication node then selects a second codec from the catalog of available and supported codecs to replace the first codec, based at least in part on a prioritization of the catalog of available and supported codecs, the network event, a session type, a session criteria, and predetermined routing information for the communication session. Thereafter, the first communication node generates a network message, which directs at least one second communication node to switch from the first codec to the second codec, and transmits the communication session with the network message thereto. The at least one second communication node, upon receiving, replaces the first codec with the second codec by a modification of at least one signaling protocol. If the destination node is unable to accept the communication session using the second codec, the at least one second communication node can generate a network message to direct an at least one third communication node to replace the second codec with the first codec before delivery.
Interface discovery and authentication in a name-based network
One embodiment provides an interface discovery system that facilitates interface discovery and authentication. During operation, the system receives a message from an unregistered interface via a local interface of a link adapter. The message can include a name. If the system determines that a source identifier of the message is not configured for a channel, the system generates a control message comprising the source identifier and an identifier of the local interface and sends the control message via a transport stack of the system.
Multi-spoke connectivity of private data centers to the cloud
A hybrid computing system includes an on-premise data center and a cloud computing system. To connect between an organization's multiple data centers, a gateway may instead utilize the connections between the private data center and the cloud computing system rather than a direct connection to the other of the organizations' data centers.
Systems and methods for interworking with over the top applications in communications network
Systems and methods are provided for facilitating communications with an operating system suspended OTT application on a user device. The methods include sending, from a P-CSCF or a WebRTC Gateway, to a push notification framework, a notification configured to cause the push notification framework to send a push notification to the suspended OTT application (IMS OTT application or WebRTC OTT application). The push notification may wake up the OTT application and cause a notification initiated REGISTRATION request to be sent by the OTT application. This can be initiated just before the IMS core network de-registers the OTT application based on a timer, or based on receipt of a SIP request (e.g. phone call received) when the OTT application is suspended. In addition, the push notification provides a lightweight authentication at the P-CSCF instead of a full blown authentication at the usual place S-CSCF.
Method for the continuous calculation of a cyber security risk index
A method for assessing a cyber security risk, the method comprising the steps of: obtaining cyber security precursor information from a plurality of sources, wherein the cyber security precursor information can be obtained from one or more online or offline sources; normalizing the obtained cyber security precursor information to a common information model; generating, from the normalized cyber security precursor information, one or more events; producing, from the one or more generated events, one or more facts; calculating a plurality of risk indicators from the one or more facts; normalizing the plurality of risk indicators to a common model; calculating, using the normalized plurality of risk indicators, one or more cyber risk index component scores; and calculating, using the one or more cyber risk index component scores, a cyber risk indicator index.
Information processing apparatus that prevents unauthorized access thereto, method of controlling the information processing apparatus, and storage medium
An information processing apparatus which is capable of preventing unauthorized access thereto. The information processing apparatus is capable of communicating with a server. An inquiry is made of the server about an IP address of the information processing apparatus, which is managed by the server. When it is determined that the IP address obtained from the server as a result of the inquiry and an IP address stored in the information processing apparatus match each other, a warning that a security level of the information processing apparatus is low is issued.
Method and system for reviewing identified threats for performing computer security monitoring
A security platform employs a variety techniques and mechanisms to detect security related anomalies and threats in a computer network environment. The security platform is “big data” driven and employs machine learning to perform security analytics. The security platform performs user/entity behavioral analytics (UEBA) to detect the security related anomalies and threats, regardless of whether such anomalies/threats were previously known. The security platform can include both real-time and batch paths/modes for detecting anomalies and threats. By visually presenting analytical results scored with risk ratings and supporting evidence, the security platform enables network security administrators to respond to a detected anomaly or threat, and to take action promptly.
Deterministic reproduction of client/server computer state or output sent to one or more client computers
Computer systems and methods for improving security or performance of one or more client computers interacting with a plurality of server computers. In an embodiment, a computer system comprises a first server computer and a second server computer; wherein the first server computer is configured to: generate a challenge nonce, wherein the challenge nonce corresponds to a challenge state; generate the challenge state based on the challenge nonce, wherein the challenge state corresponds to a response state; send, to a first client computer, the challenge nonce and the challenge state, but not the response state; wherein the second server computer is configured to: receive, from the first client computer, a test nonce and a test response state; determine whether the test response state matches the response state based on the test nonce, without: receiving the challenge state from the first server computer; receiving the challenge state from the first client computer.
Data access method based on cloud computing platform, and user terminal
A data access method based on a cloud computing platform, and a user terminal, are provided. The method is performed by a user terminal, and the method includes obtaining an access request for a data ciphertext of the cloud computing platform, the access request including a decryption key, and the decryption key including a user precise identity identifier and a user attribute identifier. The method further includes decrypting the data ciphertext into a data plaintext, in response to the user precise identity identifier belonging to an identity identifier set included in an access structure of the data ciphertext and/or in response to the user attribute identifier belonging to a user attribute identifier set included in the access structure of the data ciphertext.
Media list for travel
In an approach for sending a media list to a transportation vehicle for a user, a processor determines a media list for travel for a user, wherein the media list includes at least one media content item, and wherein the media list has associated access credentials that are set by the user. A processor receives a travel reservation for the user, wherein the travel reservation includes, at least, a departure location and a destination location. A processor determines a transportation vehicle associated with the travel reservation. A processor receives the access credentials to the media list. A processor uses the access credentials to access the media list. A processor send the media list to the transportation vehicle, wherein the media list is associated with the user, and wherein the media list is accessible to the user.
Private network layering in provider network environments
Methods and apparatus that allow clients to establish sub private networks as resources within private networks on a provider network. A sub private network may be owned and controlled by a different entity than the owner of its parent private network. A parent private network controls access to its sub private networks, and each sub private network also controls access to its resources. This enables a layered topology in which a parent private network may establish access control rules for its sub private networks; the sub private networks may supplement the access control according to their specific needs. Sub private networks may share resources of their parent private network, and a sub private network may allow or restrict access to its resources by its parent private network, by its sibling private networks, and/or by its own sub private network(s).
Facilitating digital data transfers using augmented reality display devices
An augmented reality system that includes an augmented reality user device for a first person including a head-mounted display configured to overlay virtual objects onto tangible objects in real-time, a memory, a camera, and one or more processors. The augmented reality user device is configured to perform facial recognition on the captured image to identify a face of the second person, to identify an entry for the second person, and to initiate a peer-to-peer transfer when the entry for the second person has been identified. The augmented reality user device is further configured to authenticate the identify of the second person, to generate a transfer token for facilitating the peer-to-peer transfer, and to send the transfer token to a first institution associated with the first person to initiate the peer-to-peer transfer. A network device of the first institution is configured to receive the transfer token and facilitate the peer-to-peer transfer.
Advanced application security utilizing an application key
Embodiments of the invention provide a method, system and computer program product for advanced application authentication utilizing an application key. In a method of the invention, an end user provides in a single user interface screen for authenticating into an application, each of a user identification, password and an application key. Thereafter, the application key is validated in connection with the user identification. If the application key validates in connection with the user identification, one or more application parameters for the application necessary to complete a log-in process are retrieved and the end user is authenticated into the application utilizing each of the user identification, password and application parameters so as to complete the log in process for the end user and the application and the end user is granted the ability to utilize the application.
System and method for securing the life-cycle of user domain rights objects
In a method for enabling support for backwards compatibility in a User Domain, in one of a Rights Issuer (RI) and a Local Rights Manager (LRM), a Rights Object Encryption Key (REK) and encrypted REK are received from an entity that generated a User Domain Authorization for the one of the RI and the LRM and the REK is used to generate a User Domain Rights Object (RO) that includes the User Domain Authorization and the encrypted REK.
Digital credential with embedded authentication instructions
Methods and systems are provided for sending messages in a security system. In particular, a new message syntax can include one or more positive assertions that may be verified. The receiver of the message or credential may verify all the positive assertions. In other configurations, one or more nodes that relay the message from the sender to the receiver can verify the positive assertions or may create one or more of the positive assertions. In this way, the network or entities used to relay the message can also be checked.
A method of establishing a network by sharing a secret between a first entity (A) and a second entity (B), comprising the steps of: the first entity (A) broadcasting (100) an ANNOUNCE message announcing its identity and details of other entities it is aware of, wherein each of the other entities of which it is aware is associated with a particular nonce, and the message is encrypted using a broadcast encryption scheme common to the first and second entities (A,B), and; the second entity (B), upon receiving and decrypting the ANNOUNCE message, transmitting (110) to the first entity (A) a SHARE message, wherein the SHARE message comprises a signcryption of the secret, authenticated using signcryption data associated with the particular nonce associated with the second entity (B).
A method including actions of pairing with a mobile device and receiving a user name, a password encrypted with a connector password key, and a public key of the mobile device. Additional actions include providing the password encrypted with the connector password key, receiving the password in a decrypted form, obtaining a pairing key, encrypting the pairing key using the public key, encrypting the password with a local password key, providing the pairing key encrypted using the public key and the password encrypted with the local password key, disconnecting from the mobile device, after disconnecting form the mobile device, reconnecting with mobile device, providing a workstation identification, receiving the user name and the password encrypted with the local password key, decrypting the password encrypted with the local password key, and logging in the user using the user name and the password decrypted with the local password key.
Locked down network interface
A logic device and method are provided for intercepting a data flow from a network source to a network destination. A data store holds a set of compliance rules and corresponding actions wherein at least one of the set of compliance rules is a temporary compliance rule valid for a predetermined period. A packet inspector is configured to inspect the intercepted data flow and identify from the data store a temporary compliance rule associated with the inspected data flow. A packet filter is configured to when the data flow is identified as being associated with the temporary compliance rule, carry out an action with respect to the data flow corresponding to the temporary compliance rule while the temporary compliance rule is valid.
Centralized management and enforcement of online privacy policies
Network device that registers event, method of controlling the same, and storage medium
A network device that avoids useless processing for registering an event which cannot be transmitted. An image forming apparatus as a network device has a personal firewall function, and registers an event concerning a network service. Upon receipt of an event registration request, it is determined whether or not a transmission destination specified by the received event registration request corresponds to a transmission restriction target of the personal firewall, and when it is determined that the transmission destination corresponds to the transmission restriction target, an event based on the registration request is not registered.
Browser extension firewall
Methods and apparatus are described for detecting browser extensions. Specific implementations relate to configurable security policies and automated actions performed in response to the detection of browser extensions.
Provisioning tool for a content delivery network (CDN)
A tool that allows a CDN customer, partner, or other authorized entity to create a DNS canonical name (CNAME) on the content delivery network without having to contact the content delivery network service provider directly.
Trustworthiness-verifying DNS server for name resolution
A request is received at a local domain name system server (LDNS) from a client application to resolve a domain name. Responsive to the request a WHOIS information corresponding to the domain name is obtained, using which an age of registration of the domain name and a first weighted value based on the age are computed at the LDNS. A host associated with the domain name is accessed to determine whether a type of a service is configured at the host. A second weighted value is computed based on the configuration of the type of the service. A weighted score is computed using the first weighted value and the second weighted value. An action is selected according to the weighted score. The action is applied to a network component in a network where the client application is executing, to control a manner in which the client application communicates with the host.
Notifying a user about a previous conversation
Notifying a user about a previous conversation includes based on an analysis of the previous conversation between a first user and second user determining a characterization between the first user and the second user, in response to the first user selecting, via a user device, an option to open a subsequent conversation with the second user, notifying the first user via an alert as to the characterization of the previous conversation that the first user had with the second user before reengaging the second user in a subsequent conversation, and based on an analysis of the subsequent conversation between the first user and the second user, updating the characterization to a current characterization in a database.
Methods, systems, and computer program products for processing a request for a resource in a communication
A computer-implemented method (and non-transitory media) are provided, comprising at least a portion of an instant messaging application that is configured to cooperate with an apparatus, the instant messaging application, when executed, configured to cause a device to: display an instant messaging interface including: a text entry user interface element for receiving entered text, a plurality of user interface elements for generating attachment requests that are valid according to a criterion schema defining at least one of a format or a vocabulary, the plurality of user interface elements including: a first menu item with corresponding first text, and a second menu item with corresponding second text.
Message sending and forwarding method, apparatus, and system
Method and device of processing messages on a social network are disclosed. The method includes: receiving a parameter message from a first social network account, the parameter message specifying information that identifies a first message template, a respective value of a first parameter of the first message template, and a second social network account; determining whether the parameter message meets predefined criteria of the identified first message template including a predefined criterion on a social network relationship between the first social network account and the second social network account; in accordance with a determination that the parameter message meets the predefined criteria, composing a template message in accordance with the first message template and the respective value of the first parameter; and sending the composed template message to the second social network account as a message originated from the first social network account.
Methods and devices for controlling machines
Methods and devices for controlling machines are disclosed. A method for controlling machines is performed at an electronic device having one or more processors and memory. The method includes: providing a chat interface for a social network platform on the electronic device; providing a listing of social network contacts for a user account within the chat interface, the listing of social network contacts including at least a first contact that is a human user, and at least a second contact that is a machine; and establishing a chat session between the user account and the second contact which is the machine, wherein a chat message transmitted during the chat session causes the machine to perform a requested function of the machine.
Automatic communication failure recovery systems
A system includes one or more memory devices storing instructions, and one or more processors configured to execute the instructions to perform steps of a method for automatic communication failure recovery. The system may receive customer data associated with a customer and generate a message based on the customer data. The system may transmit the message to the customer and upon determining that the customer has failed to engage the message within a predetermined amount of time, the system may monitor an application service to detect when the customer logs in and then generate a communication link between a CSR terminal and the customer's device and cause a communication interface within the application to launch on the customer's device.
System and method for data transmission in uplink RAN
A method includes iteratively executing, by a computer, a scheduling process computing an allocation of wireless access network data rate to each link between an Access point and a User Equipment within a coverage area of the Access Point, and a routing process computing an allocation of wired network resources to each wired link between the Access Point and nodes of a wired network. The scheduling and routing processes are independent of each other. At each iteration, information of the allocated wireless access network data rate is passed to the routing process; and information of the aggregate allocated data rate for each service at the Access Point is passed to the scheduling process.
Methods and systems for migrating network resources to improve network utilization
A method and system are disclosed for migrating network resources to improve network utilization, for use in a multi-node network wherein nodes of the network share network resources. The method comprises the steps of identifying a group of nodes that share one of the network resources, and identifying one of the nodes satisfying a specified condition based on at least one defined access latency metric. The shared resource is moved to the identified one of the nodes to reduce overall access latency to access the shared resource by said group of nodes. One embodiment of the invention provides a method and system to synchronize tasks in a distributed computation using network attached devices (NADs). A second embodiment of the invention provides a method and system to reduce lock latency and network traffic by migrating lock managers to coupling facility locations closest to nodes seeking resource access.
Performance-driven resource management in a distributed computer system
A system and method for managing resources in a distributed computer system that includes at least one resource pool for a set of virtual machines (VMs) utilizes a set of desired individual VM-level resource settings that corresponds to target resource allocations for observed performance of an application running in the distributed computer system. The set of desired individual VM-level resource settings are determined by constructing a model for the observed application performance as a function of current VM-level resource allocations and then inverting the function to compute the target resource allocations in order to meet at least one user-defined service level objective (SLO). The set of desired individual VM-level resource settings are used to determine final RP-level resource settings for a resource pool to which the application belongs and final VM-level resource settings for the VMs running under the resource pool, which are then selectively applied.
Method and apparatus for admission control of virtual networks in a backhaul-limited communication network
Methods and apparatus for determining whether to admit a virtual network using a set of communication network resources are provided. Different network resources can be owned by different infrastructure providers. Virtual network requests include a spatial profile of traffic requirements to be accommodated, and a determination is made as to whether the request can be accommodated based on available network resources. The resources include available backhaul link capacities. The resources can include computing resources for supporting service functions of the virtual network. Monitored network resource usage and traffic corresponding to the virtual network can be used to adjust future requests and accommodations. When a virtual network cannot be accommodated, a counter-offer can be made. Accommodation may incorporate monetary considerations. A feasibility computation of the admission procedure is formulated.
Method and apparatus for U-plane sub-service flow mapping
A method, apparatus and computer program product are provided for sub-service flow based mapping in a cellular communication system. A sub-service flow User-plane interface between an Enforcement Point and a network control system (NCS) is defined. Relation and coordination of the sub-service flow User-plane interface associated with sub-service flow management actions on a Control-plane interface is defined. In-band packet marking is created to dynamically assist the identification of sub-service flow identities and receive corresponding quality of service (QoS)/quality of experience (QoE) treatments.
Methods and systems for evaluating voice over wi-fi (VoWiFi) call quality
A method, a device, and a non-transitory storage medium provide receiving a plurality of voice call quality values and values for a plurality key performance indicators (KPIs) related to voice over Wi-Fi voice call quality; selecting a subset of the plurality of KPIs based on a correlation between each KPI and the voice call quality value; performing a plurality of discrete regression analyses based on the subsets of the plurality of KPIs and the voice call quality values to generate a plurality of regression results; determining an accuracy for each of the plurality of regression results; assigning weights to each of the plurality of regression results based on the determined accuracies; and combining the plurality of regression results using the assigned weights to generate a final combined estimated VoWiFi voice call quality algorithm that accurately predicts the voice call quality value based on values for the selected subset of the plurality of KPIs.
Communication system, control apparatus, communication method, control method and program
A communication system includes a plurality of control apparatuses that determine a packet handling operation; a plurality of packet processing units that process packets in accordance with the packet handling operation notified by the control apparatus; an assignment unit that assigns, with respect to each of the packet processing unit, a control apparatus that controls the packet processing unit concerned; and a database that is shared by the plurality of control apparatuses and that stores information related to the packet handling operation; wherein each of the control apparatuses refers to the database to determine the packet handling operation.
Dynamic priority of content-addressable memory blocks used in determining a highest-priority matching entry
In one embodiment, packets are forwarded in a network based on lookup results in a content-addressable memory that includes multiple blocks of content-addressable memory entries, with the relative priority of these blocks typically determined on a per search basis. In one embodiment, the content-addressable memory blocks perform lookup operations based on a search key resulting in a lookup results. The result determiner determines an overall highest-priority content-addressable memory lookup result based on ordering the lookup results according to a dynamic priority ordering (e.g., retrieved from storage) among the content-addressable memory blocks. One embodiment allows multiple searches to occur simultaneously among the content-addressable memory blocks by selectively performing lookup operations on multiple search keys. One embodiment weights such lookup operations to initially assign search keys to content-addressable memory block(s) with a corresponding higher-priority, and if a match is found, other content-addressable memory block(s) will not need to be searched.
Wireless mesh network analysis and configuration
A system and method for configuring wireless process mesh networks is provided. The system includes a processor, user interface module, memory, and an analysis module. The user interface module is configured to generate a user interface to receive user-provided mesh network design parameters. Memory is coupled to the processor and stores information indicative of a plurality of wireless process mesh networks and associated wireless field devices. The analysis module is configured to analyze the information indicative of the plurality of wireless process mesh networks and generate an alternate wireless mesh network configuration based on the user-provided mesh network design parameters.
Router advertisement caching
Example implementations relate to router advertisement caching. A controller may comprise a processing resource and a memory resource storing machine-readable instructions to cause the processing resource to perform a number of actions. For instance, the controller may cache a router advertisement (RA) from a router, select, in response to a client device associating with the controller, the cached RA from the router, and unicast the RA from the router to the client device.
System and method for discovering the locations of potential layer-2 nodes in a telecommunications network
A technique for discovering and identifying locations at which to deploy new Layer-2 nodes within a telecommunications network. The disclosed technique is intended to identify Layer-2 nodes at locations where they can improve service availability when deployed, especially in geographic regions that suffer frequent or simultaneous cable breaks, or both. The locations of the new Layer-2 nodes depend on the underlying Layer-0 network topology, as well as on the existing Layer-2 topology. Thus, the disclosed technique features a cross-layer approach that takes these factors into account and evaluates the locations in a way that can considerably increase the availability of one or more services offered in the telecommunications network.
Forwarding of multicast packets in a network
In one embodiment, multicast packets including, but not limited to, Bit Index Explicit Replication (BIER) multicast packets, are forwarded in a network. An independent lookup operation is performed on each destination node identified in the received packet to determine a nexthop to which to forward a copy of the packet. Typically, some or possibly all of these lookup operations are performed in parallel, in contrast to the sequential lookup and bit masking operations of previous BIER packet forwarding specifications and implementations. In one embodiment, the selection of a nexthop for a destination node is made from a set of two or more nexthop nodes on different Equal-Cost Multi-Paths (ECMPs). In one embodiment, compact data structures are used in determining how to forward the received multicast packet, with these compact data structures providing requisite forwarding information without allocating space to unassigned destination nodes.
Reporting operational metrics in speech-based systems
A speech-based system is configured to use its audio-based user interface to present various types of device status information such as wireless signal strengths, communication parameters, battery levels, and so forth. In described embodiments, the system is configured to understand spoken user requests for device and system status. For example, the user may speak a request to obtain the current wireless signal strength of the speech-based system. The speech-based system may respond by determining the signal strength and by playing speech or other sound informing the user of the signal strength. Furthermore, the system may monitor operational parameters to detect conditions that may degrade the user experience, and may report such conditions using generated speech or other sounds.
Network aware distributed business transaction anomaly detection
A system monitors applications and network flows used during the business transaction to determine distributed business transaction anomalies caused at least in part by network performance issues. A network flow associated with a business transaction is monitored by a network agent. The network agent may capture packets, analyze the packets and other network data to determine one or more baselines, and dynamically compare subsequent network flow performance to those baselines to determine an anomaly. When an anomaly in a network flow is detected, this information may be provided to a user along with other data regarding a business transaction that is utilizing the network flow. Concurrently with the network agent monitoring, application agents may monitor one or more applications performing the business transaction. The present system reports performance data for a business transaction in terms of application performance and network performance, all in the context of a distributed business transaction.
Method and system for latency measurement in communication systems
Described is a method and system for latency measurement in communication systems. The method comprises: determining, by a first communication device, a power-management state of a second communication device; transmitting, by the first communication device, one or more packets to the second communication device over a communication link, the one or more packets to be received by the second communication device while in the power-management state; receiving, from the second communication device over the communication link, one or more response packets in response to the one or more packets; and determining a latency of the communication link when the second communication device is in the power-management state based on the one or more packets and the one or more response packets.
Graph node with automatically adjusting input ports
A graphical user interface system that visually represents a graph node having multiple input ports, and that automatically adjusts the number of input ports to the graph node as open input ports are connected to upstream graph node(s) and/or as used input ports are disconnected from upstream graph node(s). Upon detecting that a set of one or more input ports has just been connected to one or more upstream graph nodes, the system may automatically add one or more additional input ports to the visual representation of the graph node without explicit user instruction. Upon detecting that a set of one or more of the input ports has just been disconnected from one or more upstream graph nodes, the system may automatically remove the determined one or more input ports from the visual representation of the graph node.
Providing recursively-generated instantiated computing resource in a multi-tenant environment
Apparatus and methods for providing computing resources are provided. More particularly, providing recursively-generated instantiated computing resource in a multi-tenant environment are provided. According to one example, a non-transitory computer-readable medium can store a set of instructions executable by a processing resource to instantiate a first instance of a first computing resource and provide the first instance of the first computing resource to a first tenant of a plurality of tenants utilizing a computing system. A second computing resource can be provided to a second tenant of the plurality of tenants when the second computing resource is available and sharable with the second tenant. A second instance of the first computing resource can be recursively-generated responsive to the request from the second tenant when the second computing resource is not available or the second computing resource is not sharable with the second tenant.
Apparatus and methods for managing service delivery telemetry
Apparatus and methods for managing service delivery quality levels and telemetry. In one embodiment, an entity (such as a Session Resource Manager or SRM) receives network layout data from the network. The SRM uses the layout data to generate a mapping of the network. The SRM also receives performance data related to the interconnections of the network. The performance data is then applied to the mapping such that, in one variant, an visual overlay showing network flow and/or performance analytics is created. Based on this mapping showing layout and corresponding performance, the SRM generates rules for delivery of services. The rules may detail preferred routes and service level information. The rules are the distributed to nodes along the delivery route and delivery is executed in compliance with the rules.
Service offloading method, device, and system
The present application provides a service offloading method, a device, and a system, and relate to the mobile communications field. The method includes: sending attribute information of a first network to a network controller of a second network, where the attribute information includes identity information of the first network or a combination of identity information and status information of the first network; sending quality information of service to the network controller of the second network, receiving the service offloading indication fed back by the network controller; and selecting, according to the received service offloading indication, a bearer network for a service requested by user equipment, thereby achieving an effect that the network controller of the second network can perform service offloading appropriately according to a network status of the first network, the network status of the second network, and the quality information of service, so as to improve network utilization.
Automatic generation of logical maps for access point layouts
A logical mapping of a plurality of access points is automatically generated. Each of the plurality of access points is plotted on a logical map. Lengths of connection lines between access points pairs are determined for each of the plurality of access points on the logical map. Connection lines are oriented in combination with adjustments to the plotted access points on the logical map to run connection lines between each of the access point pairs. Some of the access points are part of more than one access point pair as represented by more than one connection line connected to the at least one access point.
Troubleshooting voice-enabled home setup
A home assistant device assisting with the setup and troubleshooting of devices is described. An assistant device can determine setup instructions for devices. The setup instructions for one device can be determined the technical aptitude of the user and assistant the user with setting up devices within their own technical abilities. The setup instructions can then be provided.
Data center connectivity systems and methods through packet-optical switches
A data center network includes a plurality of packet-optical switches each at a location in the data center network and each including a switch fabric comprising both a Layer 1 fabric and a packet fabric communicatively coupled to one or more line ports; wherein the plurality of packet-optical switches are communicatively coupled to one another in a topology to form data connectivity in the data center network, and wherein each of the plurality of packet-optical switches is configured to provide the data connectivity through the Layer 1 switch bypassing the packet fabric when the location does not require Layer 2 forwarding in the topology, and provide the data connectivity through the Layer 1 switch and using the packet fabric to provide the data service with multi-point connectivity when the location requires Layer 2 forwarding in the topology.
Performance testing method, performance testing apparatus performing the same and storage medium storing the same
Provided is a performance testing method, a system and a storage medium for the same. The method may include determining test object metadata that defines a protocol for a test object and test job metadata that defines a performance test using a prescribed job, generating job data based on the test job metadata, generating load data according to the prescribed job to provide the load data to at least one test performing node among a plurality of test performing nodes coupled to the test object, and causing the at least one test performing node to perform the performance test for the test object.
Method and apparatus for automatically integrating a medical device into a medical facility network
A method for integrating a medical device into a medical facility network by equipping the medical device with wireless communication device is disclosed. The medical device is provided into a medical treatment area within wireless range of the medical facility network. The medical facility network is configured to detect the medical device upon entry into the medical treatment area, and then recognize or authenticate the medical device. The medical facility network is configured to thereafter transmit an initialization signal to the medical device. A system for integrating medical devices, a medical device capable of integration, and a medical facility network are also disclosed.
Mobile network IOT convergence
A method in a network device is described and includes selecting, based upon a service request, one or more device gateways from a plurality of device gateways that are communicatively coupled with a plurality of low powered devices. The low powered devices do not include Subscriber Identity Modules. Configuration information is transmitted over a public network to the selected device gateways, causing the selected device gateways to configure ones of the low power devices to perform actions according to the service request. Data is received from the selected device gateways over the public network that was generated by the configured low power devices. One or more GPRS Tunnel Protocol (GTP) tunnels are established with a Packet Data Network (PDN) gateway of a mobile network operator, and the received data is sent over the one or more GTP tunnels to be processed by the mobile network operator.
Method and apparatus for diagnosing faults in a hybrid internet protocol network
An Ethernet switch can receive an internet protocol query packet generated by a receiver for collecting telemetry data between a source and the receiver in a multicast network, translate the internet protocol query packet to an Ethernet query packet, collect in the Ethernet query packet telemetry data from the Ethernet switch where at least one telemetry field of the Ethernet Switch includes an arrival time of the Ethernet query packet at the Ethernet switch, and submit the Ethernet query packet to the next network element of the multicast network. An internet protocol router can receive an Ethernet query packet generated by an Ethernet switch having at least one field for telemetry for collecting telemetry data between a source and a receiver, translate the Ethernet query packet to an internet protocol query packet, and submit the internet protocol query packet to the next network element. Additional embodiments are disclosed.
Router management method, router and mobile terminal
A router management method, a router, and a mobile terminal are provided. The method includes: when an abnormality is detected in the currently connected wideband network, switching communications from the wideband network to the mobile network, sending the failure message to a networked mobile terminal through the mobile network, and then using the mobile terminal to perform a repairing operation according to the failure message.
Module for combining signals having different frequencies
Certain features relate to a telecommunications system with a modular frequency combiner combining multiple received signals at different frequency bands without using frequency-dependent multiplexers. The frequency combiner can include adjustable tuning elements for adjusting various signal-processing parameters of the frequency combiner while the frequency combiner is in the telecommunications system. For example, adjustable tuning elements can adjust the phases of phase shifters of each RF path so that the RF paths are matched for combining the received signals and outputting them through an output port. The adjustable tuning elements can also adjust the electrical length or physical length of the transmission lines that carry the received signals. The adjustable tuning elements can be adjusted manually or automatically while the frequency combiner is deployed in the field in the telecommunications system.
Receiving device and sending device
A receiving device includes an optical filter, an acquisition unit, a first determination unit, and a filter setting unit. The optical filter transmits an optical DMT signal received from a sending device. The acquisition unit acquires the transmission characteristics of the optical DMT signal received from the sending device. The first determination unit determines a filter frequency of the optical filter that removes a dip from the optical DMT signal on the basis of the acquired transmission characteristics. The filter setting unit sets the determined filter frequency in the optical filter.
Communication with I-Q decoupled OFDM modulation
In some examples, an apparatus includes a transmitter configured to apply input data as a frequency-domain data sequence to modulate a set of subcarriers, and separate the frequency-domain data sequence into a first subsequence of elements and a second subsequence of elements. A first conjugate symmetric subsequence that is based on inserting a zero value into the first subsequence is formed, and a second conjugate symmetric subsequence that is based on inserting a zero value into the second subsequence is formed, where the zero values are inserted at different positions in the first and second subsequences. A time-domain sequence comprising a first component that is a function of the first conjugate symmetric subsequence, and a second component that is a function of the second conjugate symmetric subsequence is generated.
Apparatus and method for generating broadcasting signal frame that includes preamble for signalling injection level information
An apparatus and method for generating a broadcast signal frame including preamble for signaling injection level information. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes an injection level controller configured to generate a power reduced enhanced layer signal by reducing a power of an enhanced layer signal; a combiner configured to generate a multiplexed signal by combining a core layer signal and the power reduced enhanced layer signal; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling injection level information corresponding to the injection level controller.
Wireless device and method for controlling phase
A wireless device includes a plurality of antenna and a plurality of wireless modules that transmit or receive signals via the plurality of antennas. Each of the plurality of wireless modules includes: a generator that generates a high-frequency signal; and a high-frequency circuit that transmits or receives, based on the generated high-frequency signal, a signal via at least one of the plurality of antennas. The wireless device further includes a controller. The controller obtains, each time the plurality of wireless modules start generation of a plurality of the high-frequency signals, a difference of phases of the plurality of high-frequency signals, and controls, based on the obtained difference, at least one phase of a plurality of signals to be transmitted or received by the plurality of wireless modules.
Modulation for a data bit stream
In some examples, a binary bit stream of input bits is encoded into a three-amplitude bipolar symbol stream of symbols, the encoding using a coding rule that specifies setting a value of a respective symbol of the symbol stream based on a respective input bit of the binary bit stream and a prior input bit of the binary bit stream that is prior to the respective input bit, the coding rule further specifying that adjacent non-zero pulses keep the same polarity. A radio frequency (RF) carrier signal is modulated using the symbol stream to produce a modulated RF signal.
Method and apparatus for generating training signal using binary sequence in wireless LAN system
Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. The STF signal that is suggested, for example, can be used for an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. Also, the disclosed STF signal can be used for a 1×STF signal from the 1×STF signal and a 2×STF signal. The predetermined M sequence can be a binary sequence of which the length is 15 bits.
Method for implementing GRE tunnel, access device and aggregation gateway
A method for implementing a GRE tunnel is provided. The access device obtains an address of an aggregation gateway group including at least one aggregation gateway. The access device sends a tunnel setup request in which an address of the access device is encapsulated by using the address of the aggregation gateway group as a destination address. The tunnel setup request is used to request for setting up a GRE tunnel. The access device receives a tunnel setup accept response sent back by an aggregation gateway and obtains an address of the aggregation gateway from the response. The aggregation gateway belongs to the aggregation gateway group. The access device configures the address of the aggregation gateway as a network side destination address of the GRE tunnel. A dynamic setup of a GRE tunnel on an access network that uses an aggregation technology is implemented.
Method of configuring field devices and field device having a configuration for two bus systems
Systems and methods of the subject invention provide for the communication with field devices in a first fieldbus system working in accordance with a first standard, and in a second fieldbus system working in accordance with a second standard. First and second field devices are arranged in the first fieldbus system and are coupled via a first fieldbus in accordance with the first standard. The first field device is also coupled to the second fieldbus system working in accordance with a second standard. A standardized object in accordance with the first standard is loaded on the first field device. A description of the standardized object is provided in the second fieldbus system. The standardized object is used from the second fieldbus system, the standardized object having no definition of a data type.
Computer vision based activation
An augmented-reality (AR) device detects a physical device located within a first predefined distance of the augmented-reality device. The AR device detects, using an optical sensor, a physical object located within a second predefined distance of the physical device, the physical object being electronically unconnected to the physical device. The AR device determines that the physical object is associated with the physical device and identifies a command based on an identification of both the physical object and the physical device. The physical device is configured to operate the command and display, in the display, virtual content as an overlay to the physical object.
Integrated building management sensor system
A building management system comprising an integrated sensor and control system integrated on a single application specific integrated circuit (ASIC). The ASIC combines sensor inputs necessary to monitor ambient light levels, light color, occupation/motion sensors, security sensors, temperature and humidity, barometric pressure, smoke and toxic substance sensors, and a processor to receive the sensor inputs and deliver control output signals to effect changes and make settings to each of the environmental systems that are monitored. The ASIC also provides human interface processing for operator control of each environmental system.
Background traffic downloading method, device, and system
The present invention discloses a method, device and system for background traffic downloading, and relates to the communications field. A background traffic downloading policy is formulated for a user group, to resolve a problem of relatively high network overheads due to repeated responses of a policy and charging rules function unit. The background traffic downloading method includes: receiving, by a network awareness and schedule device, a background traffic downloading request sent by an application server; generating a background traffic downloading policy of a user group and an identifier of the background traffic downloading policy; sending the identifier to the application server; and receiving the identifier from a policy and charging rules function device, determining the background traffic downloading policy of the user group according to the identifier, and sending the background traffic downloading policy to the policy and charging rules function device.
Analog push pull amplifier-based physically unclonable function for hardware security
An authenticating circuit includes a first and second challenge vector input, a first and second highly variable process-dependent circuit and a logic circuit. The first highly variable process-dependent circuit receives a first vector from the first challenge vector input and generates a first output that is a function of the first vector and at least one process-dependent feature of a component of the first highly variable process-dependent circuit. The second highly variable process-dependent circuit receives a second vector from the second challenge vector input and generates a second output that is a function of the second vector and at least one process-dependent feature of a component of the second highly variable process-dependent circuit. The logic circuit generates a response output that is a function of the first output and the second output. The function operates so that the response output is independent of environmental conditions of the authenticating circuit.
Method for downloading preauthorized applications to desktop computer using secure connection
A method and computer program product for establishing a connection and downloading server applications on a desktop. A user downloads and installs custom server software with the embedded user credentials data. The software provider customizes software for the user. The key of the digital signature is used as a part of the installation package. The user downloads custom server software and installs it on his desktop over a secure connection. A vendor (or content provider) checks the validity of the user data and registers the application to the user. The application provider has a right to digitally sign the package.
Authenticating messages sent over a vehicle bus that include message authentication codes
A method of transmitting data within a vehicle includes: storing two copies of a data message; constructing at an electronic control unit (ECU) a serial bus message that includes one copy of the data message and a message authentication code (MAC) created using a secret key stored at the ECU, a MAC algorithm, and a different copy of the data message; transmitting the serial bus message to a receiving ECU over a vehicle bus; authenticating the serial bus message at the receiving ECU using a copy of the key stored at the receiving ECU by creating a copy of the MAC from the data message included in the serial bus message and the copy of the key; comparing the MAC from the serial bus message with the copy of the MAC created at the receiving ECU; and rejecting or accepting the data message based on the comparison.
Validating using an offload device security component
Generally described, physical computing devices in a virtual network can be configured to host a number of virtual machine instances. The physical computing devices can be operably coupled with offload devices. In accordance with an aspect of the present disclosure, a security component can be incorporated into an offload device. The security component can be a physical device including a microprocessor and storage. The security component can include a set of instructions configured to validate an operational configuration of the offload device or the physical computing device to establish that they are configured in accordance with a secure or trusted configuration. In one example, a first security component on the offload device can validate the operational computing environment on the offload device and a second security component on the physical computing device can validate the operational computing environment on the physical computing device.
Method for generating a group secret key based on the radio physical layer and wireless terminal associated therewith
A method for generating a secret key shared by a group of at least three terminals from characteristics of wireless communication channels connecting the terminals in twos, including, at each of the terminals of the group, the implementation of the following steps of: acquiring signals from wireless communication channels, known as adjacent channels, connected to the terminal and generating a representation of each adjacent channel; for at least one wireless communication channel, known as a non-adjacent channel, not connected to the terminal, acquiring at least one image signal of the non-adjacent channel and generating a representation of the non-adjacent channel, determining the secret key from a combination of the representations of the adjacent channels and at least one representation of non-adjacent channel.
System and method for generating a server-assisted strong password from a weak secret
Disclosed herein is a method for generating a high entropy password using a low entropy password and low-entropy login data comprising supplying the low entropy password to a system comprising a generating client and/or a recovery client; and at least n servers; submitting request data derived, at least in part, from the user's low entropy password, where the request data includes authentication data; engaging in a distributed protocol with at least t servers to generate high-entropy values based on stored cryptographic information and a set of authentication information stored on the at least n servers which is checked against the authentication data provided by the user and/or the generating client and/or a recovery client; and generating the high entropy password.
Hash authenticated data
Systems and methods for hash authenticated data are described. In one embodiment, the storage device includes a storage drive and/or a controller. In some embodiments, the controller is configured to identify data to be authenticated, compute a first hash of the data using a hash function, detect a trigger event associated with the storage drive, and authenticate, after the trigger event, the data based at least in part on the first hash of the data.
Method and device for transmitting data on asynchronous paths between domains with different clock frequencies
The invention relates to a method for transmitting data between a first unit which accumulates data that has been generated with a first frequency and a second unit which requests the accumulated data with a second frequency. The method has the steps of requesting a first total increment and a first value, which represents a time increment belonging to the first total increment, from the first unit, said first total increment being the data content of the accumulated data block provided at the request time in the first unit; generating a second total increment from the first total increment using the first value, the second total increment being the data content of a data block adapted to a nominal time increment of the second frequency; and transmitting the second total increment to the second unit.
Deserialized dual-loop clock radio and data recovery circuit
A clock and data recovery circuit (CDR) includes a digitally controlled oscillator (DCO). A data sampler is coupled to receive a clock signal from the DCO. A deserializer includes an input coupled to an output of the data sampler. A first phase detector is coupled between a first output of the deserializer and a first input of the DCO. A second phase detector is coupled to a second output of the deserializer. An accumulator is coupled between an output of the second phase detector and a second input of the DCO. A frequency lock detection block is coupled to an output of the accumulator. An eye monitor is coupled to an input of the data sampler. The first phase detector controls a delay of the DCO and the accumulator controls a frequency of the DCO. An edge mute signal is coupled to the deserializer.
Bi-directional transceiver with time synchronization
A system or a network may include an optoelectronic module that includes an optical transmitter optically coupled with an optical fiber, and a controller communicatively coupled to the optical transmitter. The controller may be configured to operate the optical transmitter to transmit data signals through the optical fiber. The optoelectronic module may be configured to transmit time synchronization signals through the optical fiber along with the data signals.
Signal processing method, apparatus, and system
Embodiments of the present invention disclose a signal processing method, apparatus, and system, where the method includes: receiving a downlink signal that carries an uplink signal; and performing first interference cancellation on the uplink signal by using an estimated self-interference signal, so that a remaining amount of interference of the uplink signal is less than a first interference threshold, thereby minimizing out-of-band interference of the uplink signal on the downlink signal without using a plurality of radio frequency front-ends or without using a duplexer on a same radio frequency front-end. In the embodiments of the present invention, no duplexer is adopted, and therefore, difficulty and a cost of base station and system layout can be reduced, and extra energy consumption of a mobile terminal can also be reduced.
Half-duplex frequency division duplex communication method, base station, and terminal
When a terminal switches from a downlink subframe to an adjacent uplink subframe, generating a first guard period, where that the terminal does not process any signal in the first guard period is defined, that is, the terminal neither receives downlink data nor sends an uplink signal in the first guard period, and therefore uncertainty of a terminal behavior during a downlink-to-uplink switching process of the terminal is avoided, and successful sending of the uplink subframe can be ensured; and when the terminal switches from an uplink subframe to a downlink subframe, generating a second guard period, where the second guard period overlaps the uplink subframe or the downlink subframe, and that the terminal does not process any signal in the second guard period is defined, and therefore uncertainty of a terminal behavior during an uplink-to-downlink switching process of the terminal is avoided.
Method and apparatus for CSI reporting
Methods and apparatuses for CSI reporting mechanisms are provided. A user equipment (UE) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive channel state information (CSI) process configuration information including at least one beamformed type associated with a plurality of non-zero-power (NZP) CSI reference signal (CSI-RS) resource configurations and receive a CSI-RS resource index (CRI) reporting configuration. The processor is configured to calculate, in response to receipt of the configuration information, a CRI and a channel quality indicator (CQI). The transceiver is further configured to report the CRI and the CQI by transmitting the CRI and the CQI on an uplink channel.
Method and system for sending transmission acknowledgement information
A method and system for sending transmission acknowledgement information are disclosed, which relate to the wireless communication field; and solves the problem that full-duplex communication cannot be performed smoothly. The method includes: when a sender completes to send a radio frame to a receiver and needs the receiver to reply transmission acknowledgement information, if the receiver is sending a radio frame to the sender, the receiver replies the transmission acknowledgement information to the sender according to a determined mode for the transmission acknowledgement information. The above technical scheme applies to the WLAN, which achieves a timely data transmission acknowledgement mechanism.
Mobile station and reception method
Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of S0 transmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of R0 transmitted from the antenna port; a phase inversion unit which inverts the phase of S1 transmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of R1 transmitted from an antenna port.
Method for transmitting uplink information in multi-user multiple-input multiple-output system, and apparatus
A method for transmitting information, a station, and an access point in a MU-MIMO system includes: determining, by a first station, multiple to-be-sent first long training sequences, where the multiple first long training sequences include at least one pilot for phase tracking; and sending, by the first station, the multiple first long training sequences to an access point on multiple symbols, where a second station sends multiple second long training sequences to the access point on the multiple symbols, the multiple second long training sequences include at least one pilot for phase tracking, and a first pilot for phase tracking and a second pilot for phase tracking occupy different time-frequency resources, where the at least one pilot for phase tracking included in the multiple first long training sequences includes the first pilot for phase tracking.
Half-duplex operation in new radio systems
Methods, systems, and devices for wireless communication are described. A base station may communicate with a user equipment (UE) using frequency resources (e.g., subcarriers) with scalable channel spacing and time resources (e.g., slots) with variable slot durations. The individual slots may include multiple symbols, and each symbol may be allocated for communication in a specific link direction (e.g., uplink, downlink, or sidelink). For UEs configured to operate in a half-duplex mode, the base station may allocate sufficient time for the UE to transition between uplink and downlink configurations. In other cases, for carrier aggregation, the base station may coordinate with the UE to prevent conflicting communications (e.g., simultaneous uplink and downlink transmissions). UEs or other devices may communicate directly with one another in a device-to-device configuration using the same or a similar scheme to allow for half-duplex devices to transition between sending and receiving.
High bit rate media FEC recovery
Approaches for recovering one or more media datagrams. A plurality of media datagrams, a plurality of row forward error correction (FEC) datagrams, and a plurality of column FEC datagrams are received. The plurality of media datagrams is logically arranged in rows and columns of media datagrams. Each row FEC datagram corresponds to one of the rows of the media datagrams and each column FEC datagram corresponds to one of the columns of media datagrams. Each received datagram is stored in a buffer. Upon determining that a particular media datagram is missing, it is determined whether a particular row FEC datagram or a particular column FEC datagram covering the particular media datagram has been received and is missing only a single media datagram for which it covers. If so, then, the particular media datagram is recovered using the particular row FEC datagram or the particular column FEC datagram.
Receiver and signal processing method thereof
Provided is a receiver which includes at least one processor configured to control or execute: a first Bit-Interleaved Coded Modulation (BICM) decoder configured to generate a first output signal corresponding to an upper layer signal by processing a first input signal which includes a superposition coding signal generated at a transmitter by superimposing the upper layer signal and a lower layer signal; a parity generator configured to generate at least one parity based on a result of the processing of the first input signal by the first BICM decoder; and a second BICM decoder configured to generate a second output signal corresponding to the lower layer signal by processing a second input signal which is generated using the parity generated by the parity generator.
LDPC tone mapping schemes for dual-sub-carrier modulation in WLAN
A new lower density parity check (LDPC) tone mapper is proposed when DCM is applied for a given resource unit (RU) when LDPC is used as the channel control coding. For HE PPDU transmission with DCM, LDPC encoded streams are first modulated by a DCM constellation mapper. The modulated symbols of the lower half of the frequency segment and the modulated symbols of the upper half of the frequency segment are modulated using the same LDPC encoded bits using DCM mapping. The modulated symbols of the lower half of the frequency segment are mapped to lower half of the data subcarriers using DCM LDPC tone mapper. The modulated symbols of the upper half of the frequency segment are mapped to upper half of the data subcarriers using the same DCM LDPC tone mapper. Maximum frequency diversity for DCM can be achieved.
Station-side device and wavelength changeover monitoring method
A station-side device of the present invention includes: a wavelength change instruction unit that issues, to a subscriber-side device, a wavelength change instruction to change a transfer-source wavelength assigned to the subscriber-side device to a transfer-target wavelength different from the transfer-source wavelength; a transfer-source port that transmits and receives an optical signal of the transfer-source wavelength; a transfer-target port that transmits and receives an optical signal of the transfer-target wavelength; a transfer-source port monitoring unit that detects a connection between the transfer-source port and the subscriber-side device; a transfer-target port monitoring unit that detects a connection between the transfer-target port and the subscriber-side device; a transfer-source timer that counts, at the transfer-source port, an elapsed time from a predetermined starting time in response to the wavelength change instruction, and ends the counting of the elapsed time in a case where change to the transfer-target wavelength is complete; and a transfer-target timer that counts, at the transfer-target port, an elapsed time from a predetermined time in response to the wavelength change instruction, and ends the counting of the elapsed time in a case where the change to the transfer-target wavelength is complete.
Local channels anywhere
A mobile viewing method includes accessing location information indicative of a current location of a mobile device associated with a home market. A current market corresponding to the current location of the mobile device is identified. If the current market differs from the home market, the mobile device is granted access to a retransmission of at least one local channel of the current market. The location information may include GPS information indicative of GPS coordinates of the mobile device. The mobile device may include a mobile viewing application that displays a channel guide indicating local channels available in the current market and national channels. The mobile viewing application may include a summary of the current market and the summary may include weather, news headline, and local advertisement information.
Method of classifying interferers in co-channel interference by communication device
A method of classifying one or more interferers in a Co-Channel Interference (CCI) by a communication device including receiving, by a receiver, an in-phase and quadrature (IQ) symbol and a pilot symbol, generating, by an eigenvalue generator, eigenvalues in accordance with the received IQ symbol and the pilot symbol, computing, by an Signal To Interference Plus Noise Ratio (SINR) calculator, a SINR from the IQ symbol and the pilot symbol, and classifying, by an interferer classifier, the one or more interferers into one of a single interferer or multiple interferers based on the generated eigenvalues and the computed SINR may be provided. The method may be independent of underlying modulation scheme and Radio Access Technology (RAT) and improve a receiver of the communication device performance by at least 1.2 dB.
Adaptive symbol mapping modulation
The continuous demand for capacity and the limited available spectrum in wireless and wired communication has led to reliance on advanced modulation techniques to dramatically increase the number of bits per hertz per second. This demand in capacity and using the higher order constellations shorten the link range, and as a result, system gain becomes an important characteristic. The modulation techniques described here improve the system gain by, e.g., as much as 2.5 dB in high order modulations such as 4096-QAM. The modulation techniques include reducing the peak to average ratio and adding shaping gain. These techniques dramatically improve the system capacity, system gain, power consumption and system cost.
Nonlinear tolerant constant modulus multi-dimensional modulation formats for coherent optical communication systems
Constant modulus multi-dimensional modulation system and methods are disclosed herein, employing multi-intensity quadrature amplitude modulation (QAM) to generate a dual-polarization symbol. j bits may be mapped to one of a plurality of dual-polarization symbols having a same constant power modulus on a two-level constellation including first and second intensity rings in a four-dimensional (4D) space including in-phase (I), quadrature (Q), X polarization (Xpol) and Y polarization (Ypol). A first bit of the j bits may indicate that the symbol is on the first intensity ring for the Xpol and the second intensity ring for the Ypol, a next k bits may indicate a location of the symbol on the first intensity ring in the Xpol, and a remaining j−k−1 bits may indicate a location of the symbol on the second intensity ring in the Ypol. Maximum correlation decoding may be used to decode the first symbol at the receiver.
Signal processing device and signal processing method
A device of one aspect of the present invention includes a receiver to receive a modulation signal that has been subjected to frequency shift keying division ratio. The receiver includes a first demodulator and a demodulation control signal generator. The demodulation control signal generator includes a first frequency divider, a frequency control signal generator, and an oscillator. The first frequency divider divides a frequency of one of the modulation signal and the demodulation control signal by a first or second reception division ratio. The frequency control signal generator generates a frequency control signal based on a frequency of the other of the modulation signal and the demodulation control signal, and a frequency of the one of the modulation signal and the demodulation control signal obtained by division by the first or second reception division ratio. The oscillator generates the demodulation control signal based on the frequency control signal.
Stackable fiber optic transmitter/receiver modules
An apparatus in one embodiment comprises a first stackable transmitter/receiver module. The first stackable transmitter/receiver module comprises a housing having first and second ends and multiple sides between the first and second ends, a first signal connector arranged at the first end of the housing, a second signal connector arranged at the second end of the housing, and one or more sets of interconnects arranged on respective ones of the sides of the housing. The first stackable transmitter/receiver module is configured for mated stacking with one or more additional stackable transmitter/receiver modules via the one or more sets of interconnects. A given one of the sets of interconnects of the first transmitter/receiver module is configured to mate with a corresponding complementary set of interconnects arranged on a side of a housing of one of the additional stackable transmitter/receiver modules when the first and additional modules are stacked.
Optical network system, optical node device, and optical path setting method
In an optical network system based on a wavelength division multiplexing system using a flexible frequency grid, with the diversification of optical modulation methods, the management burden on an optical network management device increases, and its control becomes complicated; therefore, an optical network system according to an exemplary aspect of the present invention includes an optical network management device configured to receive a traffic demand, design an optical path capable of accommodating the traffic demand, and create optical path design information of a design result; and an optical node device configured to be used for creating the optical path, wherein the optical node device calculates an allocable bandwidth from the optical path design information and optical node device information on a configuration of the optical node device, and the allocable bandwidth is an optical frequency bandwidth of a generable optical path that the optical node device is capable of generating, and the optical network management device sets, from among optical path candidates having the allocable bandwidth, a desired optical path that matches the optical path design information.
Device, system, and method for displaying an image together with a superimposed light component representing a code
One information processing device may comprise circuitry configured to cause an image to be displayed on a display together with a superimposed light component having a characteristic that changes as a function of time and represents a code to be processed by a receiving terminal. Another information processing device may comprise circuitry configured to process image data from an image sensor, which image data represents an image generated on a display together with a superimposed light component having a characteristic that changes as a function of time, to identify a code represented by the superimposed light component.
Methods and apparatus for predicting and monitoring performance of a coherent optical transceiver
In some embodiments, an apparatus includes an optical transceiver configured to be operatively coupled to a network. The optical transceiver includes a photo diode and a processor configured to be operatively coupled to the photo diode. The photo diode is configured to measure a receiver optical power (ROP) value and send the ROP value to the processor. The processor is configured to measure a bit error rate (BER) value of a digital modulated signal at an input port of the optical transceiver. The processor is also configured to determine an estimated optical signal noise ratio (OSNR) value at the input port of the optical transceiver based on the ROP value and the BER value. The processor is configured to send a signal indicating the estimated OSNR value such that a planned route is selected for sending data signals through within the optical transceiver based on the estimated OSNR value.
Systems and methods for providing remote L-band smart antennas
Various avionics systems may benefit from providing remote L-band smart antennas. For example, smart antennas may be used in connection with transponders and other avionics equipment. The smart antenna may incorporate functionality that may obviate the need for coaxial RF cabling. According to certain embodiments, an avionics system may include an antenna having at least a radio frequency function included therewith. The avionics system may also include a data bus connecting the antenna to a digital receiver at avionics processing hardware.
Satellite communication system, satellite repeater, repeating method, communication network control station, satellite communication method, and method to perform data transmission
In a satellite communication system to relay communication between a terminal and a gateway installed on the ground through a satellite repeater, the satellite repeater forms a user link beam for communicating with the terminal and a feeder link beam for communicating with the gateway in a same area, and changes frequency or polarization association with respect to each of the user link beam and the feeder link beam, based on a traffic situation. Thus, a capacity that can be communicated by the beam may be changed after satellite launching.
System for end-to-end beamforming with multi-frequency access nodes
Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
Coordinated multipoint mode selection for relay base station
Disclosed herein are methods and systems for selection of a coordinated multipoint (CoMP) mode for a relay base station, based on traffic load being experienced between the relay WCD and donor base station that provide the relay tunnel used by the relay base station for backhaul communication. An exemplary method involves the relay base station: (i) determining a load indication for a communication link between a relay wireless communication device (WCD) and a donor base station, (ii) using the load indication for the communication interface between the relay WCD and the donor base station as a basis for selecting a CoMP mode from a plurality of available CoMP modes; and (iii) providing wireless service in at least one coverage area according to the selected CoMP mode.
Two-stage spatial compression method
A wireless communication device comprises at least one antenna array configured to receive a radio signal; a first compressor configured to determine a first compression operator based on a predetermined set of receive configurations for the antenna array, and to apply the first compression operator to the radio signal to generate a first compressed signal; a second compressor configured to apply a second compression operator to the first compressed signal to generate a second compressed signal; a channel estimator configured to determine a channel covariance of the radio signal, determine at least one eigenvector of the channel covariance to obtain a second compression operator, and provide the second compression operator to the second compressor; and a baseband processor configured to receive the second compressed signal from the second compressor and to process the second compressed signal to obtain output data.
Wireless communications method and apparatus for spatial sharing using carrier sense multiple access wireless medium access
To facilitate spatial sharing, signaling may be used. A first node may receive one or more frame exchanges between a second node and a third node, wherein the second node is associate with the third node. The first node may then detect a spatial sharing scenario (SSS) with an overlapping basic service set (BSS) based on the received one or more frame exchanges. Also, the first node may transmit a directional poll request to at least a fourth node associated with the first node based on the detected SSS, and thereby null directional transmissions associated with the second node, the third node or both. The first node may then receive a direction poll response from the fourth node. Further, the first node may transmit one or more directional, beamformed transmissions to the fourth node simultaneously with directional, beamformed transmissions by the second node to the third node.
Configurable beam failure event design
Determining when beam failure of a beam pair link has occurred is provided. Transient obstructions, and other interference effects can cause the failure of a beam pair link which can comprise a transmit beam and a receive beam associated with respective antennas on a transmitter and receiver. Switching to another beam pair link can cause decrease throughput and efficiency however, so the improved mechanism for determining a failure includes taking into consideration the importance of the beam pair link before initiating the beam recovery process. The configurable beam failure protocol defined herein considers the relative importance of the configured beam pair links when declaring the beam pair link a failure. The importance of the beam pair link can be based on the amount of downlink control information in the transmission.
Facilitating dynamic layer mapping with multiple downlink control channels for wireless communication systems
A system facilitating dynamic layer mapping with multiple downlink control channels wireless communication system is provided herein. In one example, a method, comprises: determining, by a BS device, for a selected mobile device, a type of downlink control channel configuration to transmit to a mobile device; and in response to determining to transmit multiple downlink control channels as the type of downlink control channel configuration, identifying a layer to couple to the downlink control channel configuration. Determining the type of downlink control channel configuration to transmit can comprise: determining to transmit multiple downlink control channels if a rank is higher than a defined value; and determining to transmit a single control channel in lieu of transmitting the multiple control channels if a rank is less than or equal to the defined value. The method can also include scheduling the layer for transmission to the mobile device.
MIMO methods and systems
A system, method, and computer program product is provided to select at least one channel based on one or more channel characteristics and initiate a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device, and further initiate a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device, such that at least a portion of the first transmission occurs simultaneously with at least a portion of the second transmission and both occur via a first wireless protocol; and is further configured to initiate a third transmission to a third multiple-input-multiple-output (MIMO)-capable portable wireless device via a second wireless protocol including a 802.11n protocol, where the first wireless protocol includes another 802.11 protocol other than the 802.11n protocol.
Method and device for transferring data from wireless LAN to plurality of STAs
Disclosed are a method and a device for transferring data from a wireless LAN to a plurality of stations (STAs). The method for transferring data from a wireless LAN to a plurality of STAs may comprise: a step in which an AP generates a MIMOOFDMA format PPDU; and a step in the AP transfers the MIMO-OFDMA format PPDU to the plurality of STAs, wherein the MIMO-OFDMA format PPDU comprises a plurality of sub-channel format PPDUs which are synchronized in time phase, and the plurality of sub-channel format PPDUs are transferred respectively to the plurality of STAs through a plurality of respective sub-channel bands, and the number of training fields for the MIMO transfer which are included in the respective plurality of subchannel format PPDUs can be the same.
Receiver and communication system
A receiver of the disclosure includes: a load modulator that transmits an active load modulation signal generated by active load modulation to a reader writer, in response to a carrier signal transmitted from the reader writer; and a controller that determines whether the active load modulation signal has reached the reader writer, and controls the load modulator to retransmit the active load modulation signal, after changing a phase of the active load modulation signal with respect to the carrier signal, in a case where the controller determines that the active load modulation signal has not reached the reader writer.
Enhanced vectoring operation with single loop unbundling
In one embodiment the method includes assigning a common frequency range over which first sets of carriers are configured for communication over respective ones of a plurality of subscriber lines. The plurality of subscriber lines are dispatched between a plurality of autonomous vectoring processors configured to mitigate crosstalk between subscriber lines coupled thereto, thereby organizing the plurality of subscriber lines into a plurality of distinct vectoring groups. The method includes assigning a plurality of additional disjoint frequency ranges to respective ones of the plurality of vectoring groups over which second sets of carriers are configured for enhanced communication over respective ones of the plurality of subscriber lines. The second sets of carriers are configured over the respective disjoint frequency ranges assigned to the respective vectoring groups which the respective subscriber lines belong to.
Systems and methods for implementing energy-efficient ethernet communications
Systems and methods for implementing an Energy-Efficient Ethernet (EEE) communication are provided. In some aspects, a method includes identifying an EEE signal configured to be communicated via a first set of wires. The method also includes processing the EEE signal such that the processed EEE signal is configured to be communicated via a second set of wires. The second set of wires including fewer wires than the first set of wires. The method also includes communicating the processed EEE signal via the second set of wires.
Rate line suppression using chaotic spreading codes
A system, method, and computer program product for chaotically generating a pseudorandom number sequence, such as for use in spread spectrum communications systems and in cryptographic systems. Chaotically generated pseudorandom numbers are not cyclostationary in nature, so output values encoded via such non-cyclostationary bases have no clear correlations. Spread signal communications systems using chaotically generated spreading codes thus operate without rate line artifacts, increasing their resistance to signal detection and to determinations of underlying signal chip rates and signal symbol rates. Broadcasts and guided transmissions (including either conductive wire or optical transmission media), in both radio frequency and optical systems are supported. Common spread spectrum communications systems including DSSS and FHSS may be strengthened through the use of chaotically generated spreading codes. Similarly, keys and nonces generated for cryptographic systems may be improved over those based on conventionally generated pseudorandom numbers.
A front-end module includes a duplexer, a band pass filter, and a terminating circuit element. A first signal path connects an output terminal of a power amplifier and a transmit node of the duplexer. The band pass filter is disposed on a second signal path between a branch point and a ground. The second signal path branches off from the first signal path at the branch point. The band pass filter has frequency characteristics in which, among frequency components of a transmit signal output from the power amplifier, frequency components that overlap at least part of the pass band of a receive filter of the duplexer are allowed to pass through the band pass filter. The terminating circuit element is disposed on the second signal path between the band pass filter and the ground. The terminating circuit element attenuates a transmit signal passing through the band pass filter.
Water resistant wireless device speaker case and conference call module
A speaker and conference call module and mobile device case combination allows a mobile device, such as a smartphone, to be retained by the mobile device case. The speaker and conference call module is configured to wirelessly connect to the mobile device to permit audio from the mobile device to be played threreupon. The speaker and conference call module further includes a microphone to permit audio pick-up by the module and deliver that audio signal to the mobile device, permitting two-way conference call features. The speaker and conference call module can produce sound via one or more exciter voice coils internally attached to the front surface thereof, where the front surface may be a material suitable for sound generation via an exciter, such as a carbon fiber material. The speaker and conference call module can be removed from and reattached to the mobile device case for convenient portability.
Mobile phone and mobile device carrying case
A mobile phone and/or mobile device carrying case comprising openings on one side or corner placed adjacently on case allowing fasteners into the openings. To effect transport and fashion, mounts are fastened into or onto the fasteners. The mounts, positioned adjacently, allow the straps to connect to each mount enabling the mobile phone and/or mobile device carrying case to be held hands free around the shoulder, neck, and chest area.
Accessory case for wireless electronic device
A removable case may have a body that is configured to receive an electronic device. The case may be coupled to the electronic device using wired and wireless paths. The case may include circuitry that receives wireless power from external equipment. The circuitry that receives the wireless power may receive wireless power at microwave frequencies. Received power may be supplied to the electronic device through wired and wireless paths. The removable case may also include circuitry that wirelessly communicates with external equipment. An array of antennas may be used to support beam steering. The array of antennas may support wireless communications in millimeter wave communications bands such as a communications band at 60 GHz or other extremely high frequency communications bands. The case and electronic device may have respective intermediate frequency antenna structures to allow intermediate frequency signals to be wirelessly conveyed between the case and device.
Complementary automatic gain control for anti-jam communications
Anti-jamming techniques are provided for RF receivers, such as those that operate in hostile environments. In some embodiments, the techniques are embodied in an anti-jam communications system configured with automatic gain control (AGC) that is complementary. The system includes a first AGC circuit prior to an interference suppression circuit and a second AGC circuit after the interference suppression circuit. The first AGC circuit operates to adjust the power level presented to the interference suppression circuit to facilitate interference cancellation. The second AGC circuit operates to maintain the original power level of the desired communications signal and prevent amplitude errors as the first AGC circuit responds to fluctuations in jammer signal power. The second AGC can be slaved to the first AGC circuit such that the sum of two gain values is held constant, according to some embodiments. In this manner, the first and second AGC circuits provide a complementary-AGC system.
Multi-mode integrated front end module
Systems and methods are disclosed for a multi-mode radiofrequency (RF) module comprising a semiconductor die and a power amplifier residing on the die. The power amplifier is configured to operate in a first RF mode corresponding to a first RF wireless technology standard and a second RF mode corresponding to a second RF wireless technology standard. A first set of circuitry within the power amplifier is active in the first RF mode and a second set of circuitry within the power amplifier is active in the second RF mode.
Hardware scalable channelizer utilizing a neuromorphic approach
Disclosed is a hardware scalable channelizer (“HSC”). The HSC includes an integrated circuit (“IC”) that utilizes neuromorphic processing. The IC also includes an IC input configured to receive an input signal and a plurality of infinite impulse response (“IIR”) channelizer filters in signal communication with the IC input, where each IIR channelizer filter of the plurality of IIR channelizer filters is configured to select a frequency band from the input signal and provide synchronous filtering of the input signal.
Transmitting apparatus and mapping method thereof
A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.
CRC calculation method, and apparatus
A CRC calculation method and apparatus are provided. According to technical solutions provided in embodiments of the present invention, a binary sequence of a first pulse includes the first packet and the second packet. The number of bits in the first packet is unequal to the number of bits in the second packet. The first packet is distributed to a first CRC calculation circuit. The second packet is distributed to a second CRC calculation circuit. CRC of the first packet is obtained by calculation by using the first CRC calculation circuit. CRC of the second packet is obtained by using the second CRC calculation circuit. If the foregoing technical solutions are applied to the foregoing application scenario of flexible Ethernet, CRC of packets with different lengths and from different transmitters may be separately calculated. Therefore, the foregoing technical solutions may be better applied to the scenario of flexible Ethernet.
High speed data weighted averaging architecture
Data weighted averaging of a thermometric coded input signal is accomplished by controlling the operation of a crossbar switch matrix to generate a current cycle of a data weighted averaging output signal using a control signal generated in response to feedback of a previous cycle of the data weighted averaging output signal. The control signal specifies a bit location for a beginning logic transition of the data weighted averaging output signal in the current cycle based on detection of an ending logic transition of the data weighted averaging output signal in the previous cycle.
System, method, and computer readable medium for emulating a sensor
A system, method, and computer readable medium for employing data obtained from an electronic network, such as the Internet, as an emulation of sensor data. A virtual sensor bridge mechanism may be interfaced to a data source, such as the Internet, to receive Web data or remote sensor data. The virtual sensor bridge may convert the received data into a format usable by a logic controller, thereby emulating sensor data and enabling the logic controller to treat the networked data source as a sensor. Furthermore, the virtual sensor bridge may interface directly with one or more sensors and may serve as an adapter or data relay between a sensor and the logic controller.
Successive approximation register analog-to-digital converter and method for operating the same
A successive approximation register (SAR) analog-digital converter (ADC) and a method for operating the same are provided. The SAR ADC includes a first capacitor DAC (CDAC), a comparator and a controller. The first CDAC receives and samples an analog input signal to generate a first voltage. The comparator compares the first voltage with a comparison reference voltage to generate a first comparison result. In a k-th iteration of at least two iterations, the controller switches a k-th switching capacitor set from a first state to a second state, such that the first CDAC generates a second voltage, and the comparator compares the second voltage with the comparison reference voltage to generate a second comparison result. The controller determines a window region and determines whether the k-th switching capacitor set is switched back to the first state according to the first comparison result and the second comparison result.
Techniques for amplifier output voltage limiting
Techniques for limiting the output voltage of an amplifier without directly affecting an output current of the amplifier are provided. In an example, an amplifier can include a plurality of amplifier stages configured to receive an input voltage and to provide an output voltage as a function of the input voltage, and a comparator configured to receive a voltage limit and a representation of the output voltage of the amplifier, to adjust current at an input to a first amplifier stage of the plurality of amplifier stages when the output voltage violates the voltage limit, and to clamp the output voltage at an offset from the voltage limit.
Quantization noise cancellation for fractional-N phased-locked loop
A system includes an oscillator, a frequency divider, and a delay circuit. The oscillator may generate a clock signal using a reference signal. A frequency of the clock signal may be a non-integer multiple of a frequency of the reference signal. The frequency divider may generate a feedback signal using the clock signal and an adjustment factor based on the non-integer multiple. The delay circuit may select a particular delayed feedback signal from a plurality of delayed feedback signals based on a value of the adjustment factor. Each of the delayed feedback signals may be generated using periods of the clock signal. The delay circuit may also modify the particular delayed feedback signal using a portion of a period of the clock signal based on the adjustment factor. The oscillator may also adjust the frequency of the clock signal using the reference signal and the particular delayed feedback signal.
Method and apparatus for source-synchronous signaling
A low-power, high-performance source-synchronous chip interface which provides rapid turn-on and facilitates high signaling rates between a transmitter and a receiver located on different chips is described in various embodiments. Some embodiments of the chip interface include, among others: a segmented “fast turn-on” bias circuit to reduce power supply ringing during the rapid power-on process; current mode logic clock buffers in a clock path of the chip interface to further reduce the effect of power supply ringing; a multiplying injection-locked oscillator (MILO) clock generator to generate higher frequency clock signals from a reference clock; a digitally controlled delay line which can be inserted in the clock path to mitigate deterministic jitter caused by the MILO clock generator; and circuits for periodically re-evaluating whether it is safe to retime transmit data signals in the reference clock domain directly with the faster clock signals.
Charge pump driver circuit
A charge pump driver circuit comprises an output stage and a current generator component. The output stage is arranged to receive at an input node thereof a control current signal and comprises a resistance network coupled between the input node thereof and a reference voltage node and arranged to provide a resistive path through which the control current signal flows. The output stage is arranged to generate at an output node thereof a charge pump control voltage signal based on the voltage level at the input node thereof. The current generator component is arranged to receive an indication of a voltage level of a charge pump output signal, and to generate a feedback current dependent on the voltage level of the output signal, wherein the feedback current is injected into the resistive path of the resistance network through which the control current signal flows.
System and method of automatic power control system and bias current control circuit
A bias-current-control circuit is provided. The bias-current-control circuit includes a transconductance circuit, a constant-current source, and a current-mirror circuit. The transconductance circuit is connected to a node and detects a voltage signal to generate a first current. The constant-current source is connected to the node and generates a tail current. The current-mirror circuit includes a reference current terminal and a bias current terminal, and the reference current terminal is coupled to the node. A second current which flows through the reference current terminal is determined by a current difference between the tail current and the first current. A bias current which flows through the bias current terminal is generated based on the second current. Furthermore, the second current and the bias current are in a predetermined ratio.
Time-frequency deviation compensation method, and user terminal
Embodiments of the present invention disclose a time-frequency deviation compensation method, and a user terminal. A temperature compensation exception can be identified and a time-frequency deviation caused by the temperature compensation exception can be compensated by implementing the embodiments of the present invention.
Low-voltage-drop rectifier circuit
A low-voltage-drop rectifier circuit includes a first MOSFET (Metal Oxide Semiconductor Field Effect Transistor), a second MOSFET, a comparator, and a level adjustment circuit. The first MOSFET has a gate terminal for receiving a control voltage, a source terminal connected to a connection node, a drain terminal connected to an input node, and a body terminal connected to the connection node. The second MOSFET has a gate terminal for receiving the control voltage, a source terminal connected to an output node, a drain terminal connected to the connection node, and a body terminal connected to the output node. The comparator generates a first comparison voltage and a second comparison voltage according to an input voltage at the input node and an output voltage at the output node. The level adjustment circuit generates and fine-tunes the control voltage according to the first comparison voltage and the second comparison voltage.
Impedance calibration device and method thereof
An impedance calibration device provided includes a timing device, a first transmitter, a first variable resistor, a second variable resistor and a first receiver. The first variable resistor is used to receive a first adjustment code. The second variable resistor is used to receive a second adjustment code. The first receiver generates a first contact digital signal according to a first contact voltage. The first receiver generates a first terminate digital signal according to a first terminate voltage and the first adjustment code. The first receiver generates a first load digital signal according to a load voltage and the second adjustment. The timing device dynamically adjust the first adjustment code and the second adjustment code according to the first contact digital signal, the first terminate digital signal and the first load digital signal.
Shunt termination path
Certain aspects of the present disclosure generally relate to electronic circuits and, more particularly, to a switch architecture including a shunt termination path, for example to provide isolation between two terminals. More particularly, aspects of the present disclosure relate to methods for operating a shunt path to achieve various termination states. An exemplary method generally includes providing a first control signal to a plurality of transistors coupled in series between an electrical path and a termination transistor, wherein the termination transistor is coupled in series between the plurality of transistors and ground, providing a second control signal to the termination transistor, and dynamically controlling the first and second control signals to achieve a desired termination state for the electrical path.
Electronic switch, and corresponding device and method
A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.
Drive control circuit driving a semiconductor device for power conversion
A semiconductor device includes a drive control circuit which drives a gate terminal of an IGBT. The drive control circuit includes a state machine control circuit, a base data memory and a current drive circuit which drives the IGBT on the basis of driving current information stored in the base data memory. The state machine control circuit reads out driving current information for rising stored in the base data memory a plurality of times in a predetermined time period and drives the current drive circuit at rising of a PWM signal, and reads out driving current information for falling stored in the base data memory a plurality of times in a predetermined time period and drives the current drive circuit at falling of the PWM signal.
Circuit arrangement for fast turn-off of bi-directional switching device
Embodiments of a transistor control device for controlling a bi-directional power transistor are disclosed. In an embodiment, a transistor control device for controlling a bi-directional power transistor includes a resistor connectable to a body terminal of the bi-directional power transistor and a transistor body switch circuit connectable to the resistor, to a drain terminal of the bi-directional power transistor, and to a source terminal of the bi-directional power transistor. The transistor body switch circuit includes switch devices and alternating current (AC) capacitive voltage dividers connected to control terminals of the switch devices. The AC capacitive voltage dividers are configured to control the switch devices to switch a voltage of the body terminal of the bi-directional power transistor as a function of a voltage between the drain terminal of the bi-directional power transistor and the source terminal of the bi-directional power transistor.
Input buffer circuit
An input buffer circuit is disclosed, which relates to a technology for a receiver circuit including a plurality of input buffers having different characteristics. The input buffer circuit includes a first buffer configured to output a first input signal by buffering a command address received based on a flag signal, a second buffer configured to output a second input signal by buffering the command address based on the flag signal, a first delay matching circuit configured to output a first matching signal by delaying the first input signal by a first delay time, a second delay matching circuit configured to output a second matching signal by delaying the second input signal by a second delay time, and a selection circuit configured to select any one of the first matching signal and the second matching signal based on a selection signal.
Generator of powerful nanosecond pulses (variants)
A generator includes a series-connected inductive energy store and a superfast drift step recovery diode, as well as a load connected in parallel to the drift step recovery diode and switches. The switches are arranged in series, and the inductive energy storage device is connected to the point of connection of the switches therebetween and adjusting the amplitude of the pulses on the load by changing the closing and opening times of the switches. The moment of closing of the second switch is in the time interval between the opening of the first switch and changing of the polarity of the current through the inductive storage, wherein the time of its opening is in the interval of time from the beginning of the pulse formation on the load until the next closure of the first switch.
Control circuit, connection line and control method thereof
A control circuit disposed in a connection line including a first power pin and a second power pin and including a native N-type transistor, a first impedance unit, and a second impedance unit is provided. The native N-type transistor includes a first gate, a first drain and a first source. The first drain is coupled to the first power pin. The first impedance unit is coupled between the first source and the second power pin. The second impedance unit is coupled between the first drain and the first gate. When the voltage level of the first power pin is equal to a pre-determined level, the first gate of the native N-type transistor receives an adjusting signal to adjust an equivalent impedance of the native N-type transistor.
Phase-switch-equipped variable amplification device and phase shifter
There is provided a phase-switch-equipped variable amplification device including a switch including one input port and two output ports and configured to output a single-ended signal input to the one input port into one of the two output ports, a first converter coupled to the two output ports of the switch and configured to convert the single-ended signal output from the switch into a pair of differential signals having phases different from each other by 180-degree and invert phases of the pair of differential signals in response to a switching operation at the switch, a variable amplifier configured to amplify the pair of differential signals in accordance with a control voltage, and a second converter configured to convert the pair of differential signals amplified by the variable amplifier into a single-ended signal.
Devices and methods for generation and detection of spin waves
The disclosed technology generally relates to semiconductor devices, and more particularly to a device configured as one or both of a spin wave generator or a spin wave detector. In one aspect, the device includes a magnetostrictive film and a deformation film physically connected to the magnetorestrictive film. The device also includes an acoustic isolation surrounding the magnetostrictive film and the deformation film to form an acoustic resonator. When the device is configured as the spin wave generator, the deformation film is configured to undergo a change physical dimensions in response to an actuation, where the change in the physical dimensions of the deformation film induces a mechanical stress in the magnetostrictive film to cause a change in the magnetization of the magnetostrictive film. When the device is configured as the spin wave detector, the magnetostrictive film is configured to undergo to a change in physical dimensions in response to a change in magnetization, wherein the change in the physical dimensions of the magnetostrictive film induces a mechanical stress in the deformation film to cause generation of electrical power by the deformation film.
Piezoelectric wafer, piezoelectric vibration piece, and piezoelectric vibrator
This piezoelectric wafer has: a piezoelectric vibration piece; a frame portion that supports the piezoelectric vibration piece; and a coupling portion that couples the piezoelectric vibration piece to the frame portion. The piezoelectric vibration piece is broken off at the coupling portion and separated from the piezoelectric wafer. On front and back surfaces of the coupling portion, grooved slits extending along a width direction of the coupling portion are formed except for parts of the coupling portion in the width direction. An electrode on at least one of front and back surfaces of the piezoelectric vibration piece is extracted to a frame-portion side of the piezoelectric wafer by way of the part of the coupling portion in the width direction.
Guided wave devices with embedded electrodes and non-embedded electrodes
A micro-electrical-mechanical system (MEMS) guided wave device includes a plurality of electrodes arranged below a piezoelectric layer (e.g., either embedded in a slow wave propagation layer or supported by a suspended portion of the piezoelectric layer) and configured for transduction of a lateral acoustic wave in the piezoelectric layer. The piezoelectric layer permits one or more additions or modifications to be made thereto, such as trimming (thinning) of selective areas, addition of loading materials, sandwiching of piezoelectric layer regions between electrodes to yield capacitive elements or non-linear elastic convolvers, addition of sensing materials, and addition of functional layers providing mixed domain signal processing utility.
High-performance conversion between single-ended and differential/common-mode signals
A signal conversion apparatus includes first and second input ports and first and second output ports. A first splitter is coupled to convert a first single-ended signal received on the first input port into a differential signal including first and second opposite-phase components, and to provide the first and second opposite-phase components respectively on the first and second output ports. A second splitter is separate from the first splitter and is coupled to convert a second single-ended signal received on the second input port into a common-mode signal including first and second in-phase components, and to provide the first and second in-phase components respectively on the first and second output ports together with the first and second opposite-phase components.
Equal coupling common mode inductor apparatus and method of use thereof
The invention comprises an electrical system apparatus for processing three-phase power, comprising: a first, second, and third inductor connected on a first end to a first common magnetic field carrying plate and connected on a second end to a second common magnetic field carrying plate, where the three inductors are equidistant from each other and/or equidistance from a central axis, which yields an equal coupling common mode inductor-capacitor based filtering apparatus. Generally, inductor placement symmetry and/or equal magnetic field permeabilities between each pair of the three inductors balances magnetic fields within each inductor at each point of time, where each of the three inductors is connected to a single phase of three-phase power, the three phases offset from each other by one-third of a period.
Impedance transformation circuit and overload protection for low noise amplifier
Aspects of this disclosure relate to an impedance transformation circuit and overload protection for a low noise amplifier. A low noise amplifier can include a first inductor, an amplification circuit configured to amplify a radio frequency signal, and a second inductor magnetically coupled to the first inductor to provide negative feedback to linearize the low noise amplifier. A switch can be coupled to the amplification circuit of the low noise amplifier. An overload protection circuit can adjust an impedance of the switch based on a signal level associated with the radio frequency signal to provide overload protection for the low noise amplifier.
Solar window construction and methods
Disclosed are novel forms of operable windows capable of producing an electrical current utilizing a transparent or semi-transparent solar collecting substrate. A scaffold assembly is utilized to enclose the perimeter of the substrate and one or more solar cells. The scaffold may comprise a scaffold port providing passage for an exit conductor from a sash lead in electrical communication with a solar cell. The assembly may include a bridge portion of an exit conductor that carries electrical current from a sash portion to a frame portion of the window assembly. A frame port extending through the frame of the window may provide passage of the exit conductor to electronic accessories or to circuits that can store or reuse the electrical energy produced. Various forms of electronic accessories are disclosed for fixed or releasable mounting to portions of the window.
Drive apparatus and electric power steering apparatus using the same
A drive apparatus is provided with a motor, a plurality of substrates and a plurality of connectors.The substrates are provided in one side of the motor in the axial direction thereof, the substrates including switching elements and control components mounted thereon. The connectors are provided in an opposite side against the motor across the substrates, the connectors including connector terminals connected to one of the substrates.The substrates include two or more non-overlapped regions where no substrates are overlapped when projecting the substrates in the axial direction. The non-overlapped regions include a connector connecting region connected to the connector terminals, and a motor line connecting region connected to winding groups of the motor corresponding to every phase of each winding group.
Control method and control device of direct current machine
A control method of direct current (DC) machine includes the following steps: obtaining a target speed n, detecting a current speed nk, calculating a current rotating speed difference ek, calculating a speed base voltage W according to the current speed nk, calculating a PID adjustment voltage V according to the current rotating speed difference ek, calculating an output voltage U according to the PID adjustment voltage V and the speed base voltage W, and driving the DC machine according to the output voltage U.
Motor control device, vacuum cleaner, and hand drier
A motor control device includes a position sensor that detects a position of a motor, an AD converter that converts an analog signal, which is a detection value of a motor current, into a digital signal, and a control circuit that drives an inverter using an output signal of the AD converter. The control circuit starts the AD converter during a permission period, and performs processing for the analog-digital converter during an electrical half cycle including a permission period. The length of a prohibition period obtained by excluding a permission period from an electrical half cycle decreases as the rotating speed of the motor increases.
Short-circuit detection circuit in a full-bridge circuit
A short-circuit detection circuit is adapted to a full-bridge driver which includes the first and second high-side transistors respectively coupled from a supply voltage to the first and second output nodes and the first and second low-side transistors respectively coupled from the first and second output nodes to a ground. The short-circuit detection circuit includes the first and second voltage dividers respectively receiving voltages of the first and second output nodes to respectively generate the first and second voltages, the high-side and low-side selectors respectively selecting the first voltage and the second voltage to respectively generate a high-side voltage and a low-side voltage, a high-side comparator generating a high-side short-circuit signal when the high-side voltage is lower than a high-side reference voltage, and a low-side comparator generating a low-side short-circuit signal when the low-side voltage exceeds the low-side reference voltage.
Isolated switched source universal inverter topology
A device and method for generating single/split or three phase AC voltages from a DC source with 1 to 2 times gain in output voltage without using any DC/DC boost or an output transformer. An isolation/multiplexer/mixer circuit successively charges multiple power modules, allowing each power module to generate output voltage(s) with desired magnitudes and phases, and allows independent outputs of each power converter modules to be reconnected to obtain up to two times the conventional possible output voltage. An isolation block eliminates the common mode noise problem. The gain in output voltage and isolation between the output converters eliminates the need of the front end DC/DC converter or an output transformer for most of the DC voltage sources, which improves cost, power density, efficiency and reliability of the inverter.
Apparatus and method for low frequency power inverter
According to one aspect, embodiments herein provide a DC-AC inverter comprising a DC-DC converter portion, an inverter portion, a clamp circuit, a controller configured to operate, in a first mode, the DC-DC converter portion to convert input DC power into DC power having a desired voltage level at a first polarity and the inverter portion to provide output power having the desired voltage level at the first polarity to the output, operate, in a second mode, the DC-DC converter portion to convert the input DC power into DC power having a desired voltage level at a second polarity and the inverter portion to provide output power having the desired voltage level at the second polarity to the output; and operate, in a third mode, the clamp circuit to drive voltage at the output to zero and to store energy discharged by a load capacitance in an energy storage device.
Control board of power conversion device capable of preventing noise from being emitted to the outside
A control board of a power conversion device, the control board includes a board main body, a plurality of drive circuits, a power source control circuit, an insulation region, a plurality of insulation transformers, and a connecting line that electrically connects the plurality of insulation transformers and the power source control circuit to each other, and at least a part of which extends in a region in inner layers of the board main body that overlaps the insulation region when viewed in a perpendicular direction with respect to the surface of the board main body.
Soft switching in single switch boundary conduction mode flyback converters using a fixed dead time
Soft switching in Boundary Conduction Mode (BCM) flyback converters using a fixed dead time is presented. Embodiments disclosed herein relate to switching circuits and more particularly to soft switching in single stage isolated flyback converters with single switch. Embodiments herein disclose systems for soft switching in single stage isolated flyback converters by combining selection of transformers turn ratio and by incorporating the fixed dead time.
An apparatus that includes a resonant DC-DC converter with switching frequencies based on stray inductances of the physical components used to construct the apparatus. This results in a relatively high efficiency and high density DC-DC converter that, in some implementations, does not require a discrete inductor component.
Current-sharing circuit for DC-DC converters
Two or more power converters are connected in parallel to supply power current to a joining node through connecting resistors. An output voltage before the connecting resistor in each power converter is sampled and divided by a sampling ratio to generate sampled voltages for each power converter. A current sharing circuit for each power converter receives the local sampled voltage and another sampled voltage from another power converter. The current sharing circuit generates an adjustment voltage that is injected into a feedback loop. The adjustment voltage modifies the output voltage of the power converter, adjusting and balancing the power current delivered by that power converter. Power currents from several power converters are reduced and balanced when the same sampling ratio is used for all power converters. Current hogging by one power converter is prevented.
Circuit for level shifting a clock signal using a voltage multiplier
A voltage multiplier circuit operates in response to a received clock signal to perform a voltage multiplication operation on an input voltage to generate an output voltage. The voltage multiplier circuit includes a pair of intermediate nodes that are capacitively coupled to receive, respectively, opposite phases of a clock signal. A first CMOS driver circuit is coupled to one of the intermediate nodes and has an output configured to generate one phase of a level shifted output clock signal. A second CMOS driver circuit is coupled to another one of the intermediate nodes and has an output configured to generate another phase of the level shifted output clock signal.
Cross-coupled charge-pumps. At least some of the example embodiment are methods including: pumping charge from a first capacitor through a first field effect transistor (FET) to a voltage output and from a second capacitor through a second FET to the voltage output of the charge pump; refreshing charge to a third capacitor and a fourth capacitor during the pumping of charge; electrically isolating the first through fourth capacitors during a dead time; and then pumping charge from the third capacitor through a third FET to the voltage output and from the fourth capacitor through a fourth FET to the voltage output of the charge pump; and refreshing charge to the first capacitor and the second capacitor during the pumping of charge from the third and fourth capacitors.
Electronic device with a charging mechanism
An electronic device includes: a clock booster including a doubler capacitor, the clock booster configured to precharge the doubler capacitor and provide a boosted intermediate voltage greater than an input voltage; a secondary booster including a booster capacitor, the secondary booster configured to use the voltage stored on the doubler capacitor to generate a stage output greater than the boosted intermediate voltage; and a connecting switch connected to the clock booster and the secondary booster, the connecting switch configured to electrically connect the doubler capacitor and the booster capacitor during a direct charging duration for charging the booster capacitor using source-secondary current from an input voltage supply instead of or in addition to the voltage stored on the doubler capacitor.
Regulator for DC-DC hybrid-mode power regulation
The invention provides a regulator for DC-DC hybrid-mode power regulation of an output voltage and a load current. The regulator may include a controller and a back-end circuit. The controller controls the output voltage and the load current by charging a connection node when a driving signal is at an on-level, and stopping charging the connection node when the driving signal is at an off-level. The back-end circuit is coupled to the controller, capable of switching between a first mode and a second mode to control transition of the driving signal by different schemes. The back-end circuit switches from the second mode to the first mode when a mode-switch criterion is satisfied, and whether the mode-switch criterion is satisfied is independent of a measurement of the output voltage.
Energy scavenging interface with impedance matching, method for impedance matching of the energy scavenging interface, and energy scavenging system using the energy scavenging interface
An energy harvesting interface receives an electrical signal from an inductive transducer and outputs a supply signal. An input branch includes a first switch and a second switch connected in series between a first input terminal and an output terminal, and further a third switch and a fourth switch connected in series between a second input terminal and the output terminal. A first electrical-signal-detecting device coupled across the second switch detects a first threshold value of an electric storage current in the inductor of the transducer. A second electrical-signal-detecting device coupled across the fourth switch detects whether the electric supply current that flows through the fourth switch reaches a second threshold value lower than the first threshold value.
DC/AC converter apparatus comprising means for controlling the reactive power and power conversion and generation system comprising such DC/AC converter apparatus
A DC/AC converter apparatus is disclosed for converting DC power of a DC energy source into AC power for supplying a load and or the utility grid. The DC/AC converter apparatus is adapted to automatically control the amount of both active and reactive electrical power that is exchanged with the utility grid in order to optimize the electrical power usage of the micro grid.
Wireless power transmitter having low noise and high efficiency, and related methods
A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
An electric power converter is provided, at low costs and in high efficiency, which also enables voltage conversion to be capable of dealing with sharp load variation, even when input voltage and output current ranges are wide. The converter includes a non-isolated buck-boost converter circuit for outputting a DC voltage by increasing or decreasing a voltage being inputted into the circuit, an isolated converter circuit for outputting a DC voltage to a load by inputting a DC voltage outputted from the non-isolated buck-boost converter circuit, and a control unit for controlling the non-isolated buck-boost converter circuit and the isolated converter circuit, whereby the control unit adjusts using only the non-isolated buck-boost converter circuit, by performing the control of a buck-boost voltage ratio between the voltage inputted thereinto and an output voltage of the isolated converter circuit, so as to make the output voltage coincident with its target value.
Magnetic coupling assembly
The invention relates to a magnetic coupling assembly for associating a first rotatable shaft to a second rotatable shaft, the magnetic coupling assembly comprising:—a rotatable first hub to be connected to the first rotatable shaft, the first hub comprising a magnet rotor comprising a plurality of permanent magnets;—a rotatable second hub to be connected to the second rotatable shaft, the second hub comprising a conductor housing comprising at least one conductor positioned at a distance from a side of the magnet rotor facing the second rotatable shaft; wherein at least one of the second hub and first hub comprises an inner hub part and an outer hub part, wherein the hub parts are configured to allow the outer hub part to be axially movable over the inner hub part to adjust the axial position of the at least one conductor relative to the magnet rotor.
Geometry of rotor end ring and stator end turns
A method of making an AC induction motor includes: providing a rotor and a stator for the AC induction motor; determining, for different geometries of an end ring of the rotor, a location of a first centroid of current density in the end ring; determining, for end turns of the stator, a location of a second centroid of current density in the end turns; selecting a geometry for at least the endring of the rotor so that an axial distance between the first centroid of current density and the second centroid of current density is minimized; and assembling the AC induction motor, wherein the end turns and the end ring have the selected geometries.
Bandage tape wound permanent magnet rotor of an electric machine
A rotor of an electric machine includes a plurality of permanent magnets arranged on an exterior of the rotor, and a bandage tape wound around the permanent magnets for fixing the permanent magnets in place. The bandage tape includes a first tape end, which is fastened to a surface of at least one permanent magnet, and a second tape end, which is an end of an outermost tape section of the bandage tape and is fastened to a tape section of the bandage tape disposed below the outermost tape section. The bandage tape is wound around the permanent magnets with a prestress such that in a region of each permanent magnet, at least one tape section of the bandage tape has a predeterminable minimum prestress.
Cold pressure welding apparatus, coil manufacturing apparatus, coil, and method of manufacturing the same
The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
Electric power steering device
In an electric power steering device, a power module includes a plurality of terminals including a motor control terminal and a power supply terminal connected to a power supply, each having a distal end portion being oriented toward a control board. A holder has holes through which the terminals pass. The terminals each have the distal end portion to be connected to the control board. A winding terminal has a distal end portion to be connected to the distal end portion of the motor control terminal. The control unit further includes a junction terminal. The junction terminal and the power supply terminal each having a distal end portion extending from the control board toward the connector assembly are respectively connected to connector terminals of the connector assembly.
Electronic device and actuator using the same
An electronic device has a substrate, a heat sink, and a heat conductive material. The substrate has a first surface on which an electronic part is arranged. The heat sink has (i) a second surface facing the first surface and distanced from the electronic part and (ii) an annular groove extending annularly and defining an area that is circled by the annular groove on the second surface and faces the electronic part. The heat conductive material is arranged between the first surface and the second surface to be in contact with the electronic part and the annular groove. The heat conductive material guides heat generated by the electronic part to the heat sink.
Rotating electrical machine
A stator is fixed to a frame of an electric motor. A rotor is rotatably mounted to the frame to face the stator in a radial direction. A heat sink, to which a control substrate is attached, is mounted in one end of the frame. A heat transfer plate is interposed between heat-generating elements formed on the control substrate and the heat sink to absorb variations in a distance therebetween, the heat transfer plate allow heat to be transmitted from the heat-generating elements to the heat sink. The heat transfer plate includes a frame body mounted to the heat sink and a plurality of contact strips that flexibly protrude from the frame body and that abut the heat-generating elements.
Power generating unit
A power generating unit of the preset invention includes: a power generating apparatus that has a push part, and generates power by pushing the push part; a rotating body that pushes the push part by rotating around a fulcrum; a drive body that rotates the rotating body by moving from a first position to a second position; and a first spring that returns the drive body from the second position to the first position. More preferably, the power generating unit further includes an actuating part; and a second spring disposed between the actuating part and the drive body, wherein the drive body is disposed between the first spring and the second spring. With this configuration, the power generating unit of the present invention can realize diversification of a use of the power generating apparatus.
Driving apparatus and optical apparatus using the same
Provided is a driving apparatus including a motor housing supported by an elastic member, which is capable of suppressing tooth skipping due to an unmeshed state of a gear in order to achieve further reduction of vibration and noise. The driving apparatus includes: a driving unit including a motor; an elastic member being in contact with driving unit; a fixing member configured to fix driving unit through intermediation of elastic member; a first gear configured to transmit rotational driving force of motor for driving; a second gear to be meshed with first gear; and a regulating member configured to be spaced apart from a rotary shaft of second gear when the rotary shaft is at a first position, and to come into contact with the rotary shaft when the rotary shaft is at a second position through displacement from first position, to thereby regulate the rotary shaft.
Motor and bus bar unit having overlapping bridge portions
A bus bar unit used in a motor including a coil may include a plurality of bus bars including a metal material. At least one of the plurality of bus bars may include a body portion extending in substantially a circumferential direction relative to a center axis of the motor; a first terminal portion electrically connected to the coil of the motor; and an arc-shaped bridge portion connecting a first end portion of the body portion to the first terminal portion. The bridge portion may lie across at least an other one of the plurality of bus bars. An axial position of the body portion and an axial position of the first terminal portion may at least partially overlap with each other.
Cover device for an electronics housing of an electric motor
The invention concerns a cover device for an electronics housing of an electric motor with at least one base segment and at least one rib formed on the base segment, wherein the base segment is geometrically configured so as to cover at least part of the surface of an electronics housing opening for drawing in a cooling air volume flow in order to close the electronics housing opening at least for a portion against the intrusion of solids, and the base segment forms with the at least one rib at least one flow duct, which can be fluidically connected to the electronics housing opening, and wherein the cover device is designed as a modular insert for the electronics housing.
Electric machine rotor
An electric machine rotor includes a lamination configured to rotate about a central axis and a plurality of pairs of permanent magnets. Each pair of permanent magnets is arranged in a V-shaped pattern and affixed within the lamination to create a magnetic field for rotation of the lamination. The lamination also includes an outer periphery spanning circumferentially outside of the permanent magnets, wherein a mass-reduction cutout extends through the lamination nested within in a V-shape defined by the permanent magnets adjacent to an outer surface of the rotor. The lamination further includes a stress-reduction slot that extends through the outer periphery of the rotor.
A motor includes: an annular stator attached in a housing; a rotor that is disposed in the stator and is rotatably supported by the housing; and a plurality of permanent magnets embedded in a rotor core of the rotor, in which the rotor core has embedding holes respectively in which the permanent magnets are fitted, and each of the embedding holes is formed with filling holes each continuous in an axial direction of the rotor core at diagonal positions of each of the permanent magnets.
Systems and methods for real or near real time wireless communications between a wireless power transmitter and a wireless power receiver
Disclosed herein are systems, methods, and devices using an improved wireless communications component that allows for real time or near-real time data sampling reporting between devices using modified wireless communications protocols (e.g., Bluetooth®, Wi-Fi), and real time or near-real time behavior adjustments by a first device based on the data samples received from a second device. Embodiments disclosed herein comprise devices, such as receivers and transmitters, having communications components that may communicate data samples, such as power values, in real time or near-real time, thereby allowing a first device (e.g., transmitter) to adjust in real time or near-real time operational behavior of the first device's hardware or software (e.g., adjust power waves) based upon the data samples (e.g., power values) received from a second device (e.g., receiver).
Power transmitting apparatus, control method, and storage medium
A power transmitting apparatus, which has a capability of wirelessly transmitting power to a power receiving apparatus, obtains time information indicating a time for starting of the power transmission to the power receiving apparatus and controls a timing of power transmission based on the time information.
Systems and methods for controlling operation of a transmitter of a wireless power network based on user instructions received from an authenticated computing device powered or charged by a receiver of the wireless power network
An example method for managing a wireless power network includes: transmitting, via an antenna array of a transmitter, radio frequency waves that constructively interfere to produce energy pockets for receipt by a receiver, and the receiver is not in contact with the transmitter and is coupled with an authenticated computing device distinct from the receiver. The method also includes: executing a power transmitter manager application, the power transmitter manager application causing the transmitter to perform operations including: sending for display at the authenticated computing device a plurality of configuration options that are used to control operation of the transmitter; receiving an updated value for at least one of the plurality of configuration options; and, in response to receiving the updated value, controlling transmission of radio frequency waves via the antenna array to the receiver using the updated value for the at least one of the plurality of configuration options.
Wireless charging apparatus and wireless charging method
A wireless charging apparatus and a wireless charging method are provided. The method includes selecting at least one of a wireless power reception mode and a wireless power transmission mode by a wireless charging apparatus, wirelessly receiving electric power when the wireless power reception mode is selected, and wirelessly transmitting electric power when the wireless power transmission mode is selected.
Wireless power transfer through metal objects
A mobile device includes a housing having a conductive region and a wireless power receiver having a receive coil configured to receive wireless power through the conductive region. The thickness of the conductive region is less than δ/10, wherein δ is a skin depth of the conductive region at a primary frequency of an electromagnetic signal that provides the wireless power.
Electromechanical propulsion system having a wireless power transfer system
An elevator system includes an elevator car having an electrically powered car subsystem. A guide rail of the elevator system is constructed and arranged to guide the elevator car along a hoistway and in a direction of travel. An electromechanical propulsion system includes plurality of primary windings positioned along the hoistway, and a permanent magnet coupled to the elevator car for imparting motion to the elevator car in response to a drive excitation. A secondary winding is coupled to the elevator car and disposed adjacent to the permanent magnet along the direction of travel, and wherein the secondary winding is configured to utilize an excitation switching frequency ripple to generate a current to power the car subsystem.
Wireless power feeding system, method of controlling the same, program, and storage medium
A method of determining a power transmission device to be set as a master device such that wasteful communication is not caused. In a wireless power feeding system, a power transmission device that transmits electric power to a power reception device forms a group with other power transmission devices. The power transmission device performs communication with the power reception device or the other power transmission devices using a wireless transmission section and a wireless reception section, and exchanges information with the other power transmission devices. The power transmission device receives a setting for determining a power transmission device to be set as a master device out of the self device and the other power transmission devices, with which information has been exchanged. If the received setting is for setting the self device as the master device, the self device is set as the master device.
Electronic device and method of wireless power transfer therefor
An electronic device and method of wireless power transfer therefor are provided. The electronic device may include a frequency change circuit to produce a first signal of a frequency corresponding to at least one wireless power transfer scheme, a duty cycle change circuit to produce a second signal of a duty cycle corresponding to the at least one wireless power transfer scheme, and a control unit to control at least one of the frequency change circuit and the duty cycle change circuit according to the at least one wireless power transfer scheme. Various other embodiments are also possible.
Charging mode control method and device
A charging control method of a computing system is provided. The method includes determining a charging mode for an external device connected to the computing system, charging the external device according to the charging mode, monitoring a current and a voltage in the computing system, and changing the charging mode based on the result of the monitoring.
Electric vehicle charging station with cable retaining enclosure
In various embodiments, an enclosure for a charging station is provided having a peripheral casing configured to retain a charging cable on an upward facing surface of the peripheral casing between a front user interface side and a charging station mounting surface.
Scheme for activating or deactivating shipping mode for battery via battery connecting interface without additional signal port(s)
A method for controlling a state of a battery includes: providing and using a specific connecting interface to connect the battery and a portable device; and controlling the battery to enter a shipping mode and exit the shipping mode by using the specific connecting interface.
Dynamic battery cell impedance monitoring
Battery packs that include multiple battery cells that may be monitored using a reduced amount of circuitry and battery systems that may account for battery cell changes over aging and temperature.
System and method for managing rechargable batteries for medical devices
A system for managing rechargeable batteries for medical devices includes a charging station that holds and charges multiple batteries simultaneously and an idle time module that determines a battery idle time for one or more of the multiple batteries held in the charging stations, wherein the battery idle time indicates the duration that each respective battery has been fully charged and available for use. The system further includes a battery selection indicator for each of the multiple batteries, wherein the battery selection indicator is activated based on the battery idle time to identify that the respective battery should be selected for use.
System for generating power and capacitively charging and monitoring a battery pack
Disclosed is a system and a method for charging and managing power of at least a rechargeable battery pack of an electronic equipment. The system includes a charging section, a battery section and a monitoring section. The charging section provides a capacitively coupled AC power. The battery section receives the capacitively coupled AC power, and further charges the rechargeable battery pack by converting the received AC power into DC power. The monitoring section that monitors the charge status of the battery section and releases command data to the charging section for charging the rechargeable battery pack. Further the charging section provides the AC power to start the charging operation of the rechargeable battery pack, on receiving command data from the monitoring section.
A switching module comprising at least one current sense component. The at least one current sense component is arranged to generate a first phase sense current based at least partly on a received output signal of the at least one differential amplifier when the first cross-coupling component is configured to operably couple the differential inputs of the at least one differential amplifier to the output node of the at least one power switching device and the current sense feedback node with a first polarity, generate a second phase sense current based at least partly on a received output signal of the at least one differential amplifier when the first cross-coupling component is configured to operably couple the differential inputs of the at least one differential amplifier to the output node of the at least one power switching device and the current sense feedback node with a second polarity, and output a combined sense current based at least partly on a combination of the first phase sense current and the second phase sense current.
Method for operating a photovoltaic system comprising an energy store and a bidirectional converter for connection of an energy store
A photovoltaic system having an inverter and a photovoltaic generator connected to an inverter input is configured to track an operating voltage of maximum power from the photovoltaic generator. The system also includes an energy store coupled in parallel with the photovoltaic generator, to the input of the inverter. A temporal profile of the power output by the photovoltaic generator is recorded by the converter and compensates for fluctuations in power from the photovoltaic generator in comparison with a target power by adapting the power (PDC) output by it at the input or branched off from there in such a manner that the sum of the power (PDC) from the converter and the power (PPV) from the photovoltaic generator is equal to the target power (PSoll). The converter is operated in a tracking mode that it makes it possible to track the operating voltage of maximum power by means of the inverter. There is a repeated change between the compensation mode and the tracking mode during ongoing operation of the photovoltaic system in which power from the photovoltaic generator is available.
Adaptive load sharing system
Sharing of load current in desired ratios between multiple electrical voltage sources is achieved without coupling between the sources by controlling a selection switch to select each voltage source for a proportion of the time at a high rate, the switching rate components being prevented from being seen by either the load or the sources through use of low-pass filters.
Power quality of service optimization for microgrids
Various examples are provided for power quality of service optimization for microgrids. In one example, among others, a microgrid includes a smart meter configured to control supply of electric power to loads based at least in part upon energy consumption scheduling of the loads, which is based at least in part upon an effective electric generation capacity associated with the microgrid. The energy consumption scheduling can be based at least in part upon estimated power output of a sustainable energy resource of the microgrid and a load demand characterization of the loads. In another example, a system comprises a plurality of microgrids and an advanced metering infrastructure (AMI) configured to monitor operations of the microgrids and to control supply of electric power from sustainable energy resources and energy storage systems to loads of the microgrids via smart meters based at least in part upon energy consumption scheduling of the loads.
A photovoltaic (PV) module can include a plurality of solar cells and circuitry configured to switch between a first state in which output voltage from the PV module includes voltage from the plurality of solar cells and a second state in which the output voltage includes voltage from fewer that all the plurality of solar cells.
Signal handling for inaccessibly located power equipment
A protection arrangement for inaccessibly located power distribution equipment includes a first enclosure with power equipment and sensors, a second enclosure adjacent the first enclosure and including a signal handling device, at least one sealed electrical conductor passage between the first and second enclosures, each comprising at least one penetrator through the walls of the first and second enclosures. The signal handling device in the second enclosure is connected to the sensors in the first enclosure via electrical conductors passing through said sealed electrical conductor passages and to an external protection device via a communication link. The signal handling device receives electrical sensor signals from the sensors and shapes them for submission to the external protection device.
A cable/line insertion is used to insert and thread at least one line into and through a wall opening into a housing wall. The insertion comprises an insertion sleeve for inserting into the wall opening, a pressing flange which projects substantially radially outwards from same, in places, and a clamping part which in particular can be screwed in the direction of the pressing flange onto the insertion sleeve, and a fastening section of the insertion sleeve, which is arranged opposite the clamping part. The fastening section comprises a contact surface which projects at least in places substantially radially outwards, which contact surface can be engaged from behind by a plug part for pressing the pressing flange to an opening edge of the wall opening.
Electrical outlet locking mechanism
Implementations of an electrical outlet locking mechanism to attach to an electrical outlet are provided. In some implementations, the electrical outlet locking mechanism includes a cover plate adapter and a socket cover attachment to attach to the cover plate adapter to locking cover an electrical socket of an electrical outlet. In some implementations, the electrical outlet lockingly mechanism includes a cover plate adapter and a plug retainer attachment to attach to the cover plate adapter to lockingly retain an electrical plug in engagement with an electrical socket of an electrical outlet.
Support core with a securing and releasing mechanism
A support core includes a tube body for holding a device in an expanded state, a low-friction film disposed over an outer surface of the tube body, and a fixing device for holding the film in place, the fixing device comprising a loop of tape wrapped longitudinally over the film and through the tube body, or a tab on the film that is affixed to the tube body. To remove the tube body, the tape and/or film are cut so that the film can slide towards the front end of the tube body, and the tube body is then pulled out of the device.
Motor control center units with multi-purpose shutter cams and related units
Motor control centers have units or buckets with multi-purpose shutter cams that slide shutters right and left to controllably block access to a portal of an isolation lead screw that can extend and retract power connectors and that provides one or more safety interlock engagement features that prevent certain actions depending on the operating state of the buckets.
Optical sensor having external cavity laser outputting sensing and reference light
Disclosed is an optical sensor, including an external cavity laser configured to output sensing light and reference light; and a photodetector configured to detect a beating signal by an interference of the sensing light and the reference light output from the external cavity laser, in which the external cavity laser includes a reflecting filter including a sensing grating, to which a sensing object is attachable, and a reference grating, which is disposed on the same plane as that of the sensing grating, and outputs sensing light reflected from the sensing grating and reference light reflected from the reference grating. Accordingly, the optical sensor does not require a high-resolution spectroscope and has improved resolution and sensitivity.
Densely arrayed waveguides with low cross-coupling
Described herein are lasers comprising an output port to output an optical signal, a plurality of waveguide segments forming an optical cavity length, and a resonant optical cavity comprising the optical cavity length, a gain medium included in the resonant optical cavity to amplify the optical signal, and a heating element disposed near at least two of the plurality of waveguide segments, the heating element controllable to adjust the phase of the optical signal by heating the waveguide segments. Described herein are optical devices comprising a first plurality of ports to output a plurality of optical signals, a second plurality of ports to receive the plurality of optical signals, and a plurality of coupling waveguides. The plurality of waveguide may comprise a pair of adjacent waveguides separated by a first distance, each of the pair of adjacent waveguides comprising a different width.
Akinetic swept laser apparatus and method for fast sweeping of the same
A detuned resonant mechanism is employed in a laser cavity to modulate in frequency the mode-locking mechanism to achieve high frequency tuning rates, exceeding MHz. The configuration of the laser is compatible with working at sweeping rates close to multiples of the cavity resonance frequency as well as with buffering for increased tuning speeds.
Fiber laser with free-space components
In one embodiment, a laser system includes a seed laser diode configured to produce a free-space seed-laser beam. The laser system also includes a pump laser diode configured to produce a free-space pump-laser beam. The laser system further includes an optical-beam combiner configured to combine the seed-laser and pump-laser beams into a combined free-space beam and a focusing lens configured to focus the combined beam. The laser system also includes an optical gain fiber that includes an input end configured to receive the focused beam. The laser system also includes a mounting platform, where one or more of the optical-beam combiner, the focusing lens, and the input end of the gain fiber are mechanically attached to the platform.
Dual-function optical bench and cooling manifold for high-power laser system
A system includes a laser system having a master oscillator and a planar waveguide (PWG) amplifier having one or more laser diode pump arrays, a pumphead, input optics, and output optics. The system also includes an optical bench and cooling manifold coupled to the pumphead. The optical bench and cooling manifold is configured to provide coolant to the one or more laser diode pump arrays and the pumphead through the optical bench and cooling manifold. The optical bench and cooling manifold is also configured to partially deform during operation of the laser system. A housing of the pumphead is coupled to the input and output optics to maintain optical alignment of the pumphead with the input and output optics.
Optical configurations for fusion laser
Embodiments include an optical configuration of a laser for driving an inertial confinement target that may include a section configured to generate long pulse laser light (Primary Laser Source) and then to compress the long pulse with multiple compression stages to a desired pulse length, energy, and beam quality (Compression Section). These configurations can utilize compression stages that do not include any material optics operating near damage fluence, and that do not require material optics exposed to high fluences to couple compression stages to each other.
Spatial chirped cavity for temporally stretching/compressing optical pulses
Systems and methods for optical pulse stretching or compression in time are provided. An apparatus of the subject invention can operate as an optical dispersive element for optical pulse stretching or compression in time, as well as laser scanning in space. An apparatus can include a spatial disperser arranged to divide a collimated optical pulsed beam into an array of collimated beams with equally spaced angles, a beam shaper configured to control the spreading angle of the beam array, and a cavity to sequentially reflect the individual beams within the beam array. The cavity can include two non-parallel surfaces, such as two non-parallel mirrors.
Surgical shaft assemblies with watertight housings
A slip ring assembly is used with a surgical shaft assembly. The slip ring assembly includes a first housing portion, a first connector supported in the first housing portion, and a first conductor mounted on the first connector. The slip ring assembly also includes a second housing portion, wherein one of the first housing portion and the second housing portion is rotatable relative to the other, a second connector supported in the second housing portion, and a second conductor mounted on the second connector, wherein the second conductor is in contact with the first conductor. An interface between the first housing portion and the second housing portion, wherein the interface is configured to effect a seal between the first housing portion and the second housing portion.
A brush for a starter-generator includes a first carbon block, a second carbon block, a terminal lug, and a plurality of brush leads. Each carbon block has an outboard edge and an inboard edge. Each carbon block includes a front carbon wafer and a rear carbon wafer. Front brush leads connect the terminal lug with the front carbon wafers of the respective carbon blocks adjacent the inboard edges of the respective carbon blocks. Rear brush leads connect the terminal lug with the rear carbon wafers of the respective carbon blocks adjacent the outboard edge of the respective carbon blocks.
Multi-function power strip
Embodiments of a multi-function power strip are shown, said strip including a first endcap and a second endcap; at least one rail, said rail being adapted to engage with at least one outlet module; the rail also being engaged with a transformer module, said transformer module in electrical connection with the at least one outlet module, and adapted to receive electrical power therefrom, said transformer module further comprising a transformer adapted to transform electrical power into a plurality of voltages suitable for powering a plurality of different models of electronic accessories, and a connector forming a circuit to provide a suitable one of the plurality of voltages to an electronic accessory; and wherein the at least one outlet module and the transformer module are releasably joined together.
A power plug is provided. The power plug may include a plug insert having a handle, and a plug body including a plurality of insulation layers and a plurality of conducting strips sandwiched between the pluralities of insulation layers. Each of the plurality of conducting strips may have an end extending into the handle and the other end forming or electrically connected to a conducting contact point exposed on a surface of the plug body.
Audio output jack
A mono audio output jack for an electrical instrument includes at a positive contact member and a ground contact member, the positive contact member partially insertable into the ground contact member. A conductive contact ring is disposed about each contact member. An audio plug is centrally disposed with the contact members and the contact rings. The jack hereof is adapted to receive a medial contact member and associated ring to define a stereo jack.
Electrical connector having forwardly extending stopper on metallic outer shell
An electrical connector includes a contact module enclosed within a metallic inner shell, and a metallic outer shell attached upon the inner shell. The contact module includes an insulator and a plurality of terminals integrally formed with the insulator. The insulator includes a base and a tongue portion extending forwardly from the base. The inner shell forms a mating cavity in which the tongue portion extends. The outer shell forms a main body covering the inner shell and a rear cover extending rearwardly from the main body to cover the rear side of the base. The rear cover further includes at least an abutment section forwardly extending toward the base and abutting against a rear face of the base so as to prevent further rearward movement of the contact module relative to the inner shell.
Printed circuit board retention bands
In some examples, a socket locking system can comprise a socket; a printed circuit board (PCB) card disposed in the socket; a first locking handle and a second locking handle to lock the PCB card in the socket; and a PCB retention band including: an elongated closed loop forming a first distal end and a second distal end opposite from the first distal end, wherein the first distal end is to contact the first locking handle and the second distal end is to contact the second locking handle; and a retention portion coupled to the elongated closed loop of material to contact a top surface of the PCB card to disposition the PCB card in the socket.
Electrical connector assembly with locking structures thereof
A receptacle connector includes an insulative housing equipped with a plurality of receptacle contacts and enclosed by a capsular metallic shield sub-assembly. An insulative holder encloses the shield sub-assembly with a deflectable latching structure thereon. The plug connector includes an insulative body equipped with a plurality of plug contacts. An internal PCB is located behind the housing and soldered with the corresponding contacts. A capsular metallic shell encloses the insulative body and adapted to be received within the metallic shield during mating. A cable is connected to the PCB. An insulative cover encloses the internal PCB, the rear portion of the insulative body and the front portion of the cable with a retaining structure to be coupled with the latching structure, and a sliding assurance structure ensuring the latching structure and the retaining structure to be securely engaged with each other for maintaining the reliable mating.
Lever-fitting type connector
A lever-fitting type connector includes a lever configured to linearly perform a relative movement with respect to a terminal accommodation member when lever operational force in a straight direction is input, a first guide mechanism configured to convert lever input acting along a lever operation direction that is exerted from the lever on the terminal accommodation member, into force in a connector insertion-removal direction orthogonal to the lever operation direction, and to guide a relative movement between the terminal accommodation member and the lever while performing conversion of a direction of the force, and a second guide mechanism that is a screw mechanism that can exert axial force acting along the lever operation direction, on the lever, and is configured to relatively move the lever with respect to the electrically-connected target object while guiding in the lever operation direction.
Plastic sealing internal sheath for a conductor connection, connection part, cover nut and sealed connection between two conductors
The invention initially relates to a plastic sealing internal sheath (13) for a conductor connection between a first conductor (1) and a second conductor (11), wherein, in the connected state, the first conductor (1) is joined with the second conductor (11) by means of a mandrel (12) that yields a conductive connection, wherein the mandrel (12) passes through a push-through area (8) of the first conductor (1). In order to further improve such a sealing internal sheath, it is proposed that the sealing internal sheath (13) that can be slipped over the first conductor (1) exhibits a receiving area (15) for the first conductor (1) completely enveloped transverse to a push-through direction (r) at its end allocated to the push-through area (8) of the first conductor (1), and a passage opening (17) in the push-through direction (r), wherein the passage opening (17) exhibits a first and second opening edge in the push-through direction (r), and has a closed, continuous sealing lip (18) at least on the second opening edge, and the end of the sealing internal sheath (13) facing away from the connection area is designed to interact with the first conductor (1) so as to form a seal. The invention also relates to a connection part for establishing an electrical connection between two electrical conductors. The invention further relates to a casing for sealing an electrical connection between two electrical conductors.
Miniature electronic device
A micro electronic instrument, wherein said micro electronic instrument includes a baseboard and a cover board; a first electronic circuit and a first contact electrode are arranged on the baseboard, and the first electronic circuit connects the first contact electrode electrically; the cover board covers on the baseboard, but there is a space between them, and the first electronic circuit is in the space between the cover board and the baseboard. A width of the electronic instrument is in a range from 11.95 mm to 12.05 mm, a thickness of the electronic instrument is in a range from 2.4 mm to 2.5 mm. The electronic instrument provided in the present invention is smaller than that in prior art, and it is more portable and more convenient for a user.
A display device is disclosed. The display device includes a body, a housing separated from the body and configured to transmit/receive signals to/from the body, and a cable coupling the housing and the body, wherein the cable includes a flat cable located in at least part of the cable and having a flat shape, and a round cable located in at least another part of the cable and having a round shape. According to the present invention, the flat cable has a narrow width by including a plurality of layers, and thus wiring of signal terminals and power terminals can be easily changed between the flat cable and the round cable.
Supported and hidden surface mount contact tails of electrical connector
An electrical connector is mounted to a printed circuit board and includes an insulative housing and a number of upper and lower terminals affixed to the insulative housing. The insulative housing includes a base portion having a mounting portion extending rearward from the base portion, and a mating tongue extending forwardly from the base portion. The mounting portion includes a mounting surface mounted to the printed circuit board and an rear surface. Each terminal has a contacting portion exposed to two exposed surfaces of the mating tongue, a fixed portion and a tail extending rearward from the fixed portion. The tails of the upper terminals parallel to the mounting surface are a number of horizontal rear tails located in a rear end of the tails of the lower terminals. The horizontal rear tails extend rearward and are located in front of the rear surface.
An electrical connector includes an insulating body. Multiple terminals are accommodated in the insulating body. A base is located at a periphery of the insulating body and provided with a first pivoting portion and a second pivoting portion, both located behind the insulating body. A guide frame is pivotally connected to the first pivoting portion, so that the guide frame rotates between a closed position and an open position relative to the base. The guide frame is provided with a limiting section, and two sliding rails are arranged at left and right sides thereof correspondingly. A carrier is supported on upper surfaces of the slide rails, slides in the sliding rails and rotates along with the guide frame. When the guide frame rotates from the closed position to the open position, an engaging portion abuts the limiting section to limit the guide frame from continuing rotating.
A patchboard having a plurality of socket blocks (2), each of which has a box-like housing (3) with two end faces (4a, 4b) and four side faces (5a, 5b, 5c, 5d) which extend between the end faces (4a, 4b), the two end faces (4a, 4b) of the socket blocks (2) having at least one connection region (6). An increased degree of flexibility and ability to adapt to individual user requests is achieved due to each of at least two side faces (5a, 5b, 5c, 5d) of the socket blocks (2) having at least one latching element for connection to another socket block (2), and by at least one termination element (11) being arranged on at least one side of the patchboard (1), the termination element (11) having a mating latching element on at least one side face (12, 12b) for connecting the termination element to an adjacent socket block (2).
Antenna device and method for manufacturing same
Provided is an antenna device having a structure that suppresses deterioration in performance as a profile becomes lower. Four FM band antenna elements and two AM band antenna elements are arranged side by side on an antenna base. Further, a circuit board including synthesis circuits in one-to-one correspondence with the antenna elements, respectively, is arranged in an inner space of the antenna elements. In order that omnidirectionality may be exhibited in a horizontal plane, each of the antenna elements includes a helically wound linear conductor, and a planar conductor that is electrically connected to the linear conductor at a part substantially the farthest from a ground plane (antenna base).
Methods circuits devices assemblies and systems for wireless communication
Disclosed herein are methods, circuits, devices, assemblies and systems for facilitating wireless communication, both satellite and terrestrial. According to embodiments, there may be provided a composite antenna structure including multiple antenna element clusters, wherein each antenna cluster may be comprised of a set of antenna elements disposed in proximity to one another and connected to one another through an intra-cluster signal distribution line. Antenna element clusters may be connected to one another and to a main signal line through a network of inter-cluster signal distribution lines. A first set of antenna element clusters may be connected to a transmission signal (TX) line, thereby forming a TX antenna. A second set of antenna element clusters may be connected to a receive signal (RX) line, thereby forming a second RX antenna. Antenna elements of RX and TX antenna element clusters may disposed on a common surface, or parallel surfaces, in an interlaced manner.
Low-profile circularly-polarized single-probe broadband antenna
Low-profile broadband patch antennas capable of radiating circularly polarized (CP) signals utilizing a single probe in accordance with embodiments of the invention are disclosed. In many embodiments, the patch antenna includes a ground plane, a patch plate, at least one dielectric or foam substrate, and a feed probe. In several embodiments, the patch plate includes a first plate and a second plate that can be connected via first and second connecting bars. In various embodiments, the connection of the first and second plates can expose first and second slots as further discussed below. In a variety of embodiments, the feed probe can be a coaxial cable having an inner and outer conductor where the inner conductor connects to the first plate and the outer conductor connects to the ground plane.
Phased array antenna system with electrical tilt control
A phased array antenna system with electrical tilt control incorporates a tilt controller (62) for splitting an input signal into three intermediate signals, two of which are delayed by variable delays T1 and T2 relative to the third. A corporate feed (64) contains splitters S3 to S10 and hybrids H1 to H6 for processing the intermediate signals to produce drive signals for elements of an antenna array (66); the drive signals are fractions and vector combinations of the intermediate signals. The tilt controller (62) and the corporate feed (64) in combination impose relative phasing on the drive signals as appropriate for phased array beam steering in response to variable delay of two intermediate signals relative to the third intermediate signal.
PCB beam-forming antenna
A two-dimensional antenna includes a ground plane, a primary radiator element, and at least one switchable radiator element. The ground plane comprises an electrically conductive material and is electrically coupled to an electrical ground. The primary radiator element is disposed in a coplanar relationship to said ground plane and is electrically coupled to a signal path of a transceiver. The at least one switchable radiator element is disposed in a coplanar relationship to the ground plane and the primary radiator element and is selectably electrically couplable to one of the signal path of the transceiver and the electrical ground.
Antenna isolation systems and methods
Systems and methods for enhanced antenna isolation are disclosed. An example antenna isolation system includes a first antenna element of an antenna array configured to transmit or receive wireless transmissions, a second antenna element of the antenna array adjacent to the first antenna element in the antenna array, and a scattering structure disposed substantially between the first and second antenna elements. The scattering structure is configured to reduce electromagnetic coupling between the first and second antenna elements by, at least in part, directing electromagnetic radiation coupled through the first antenna element away from the second antenna element.
Slim triple band antenna array for cellular base stations
The present invention refers to a triple-band antenna array for cellular base stations operating at a first frequency band and at a second frequency band within a first frequency range, and also at a third frequency band within a second frequency range. Said triple-band antenna array comprises a first set of radiating elements operating at the first frequency band, a second set of radiating elements operating at the second frequency band, a third set of radiating elements operating at both the third and the first frequency bands, and a fourth set of radiating elements operating at both the third and the second frequency bands. The radiating elements are arranged in such a way that at least some of the radiating elements of the first set are interlaced with at least some of the radiating elements of the third set, and at least some of the radiating elements of the second set are interlaced with at least some of the radiating elements of said fourth set. Further the invention relates to a slim triple-band base station for mobile/cellular services that includes in its radiating part two or more of said triple-band antenna arrays.
A mobile terminal includes an external interface body, an antenna assembly, and a first filter unit. The antenna assembly includes a first antenna, a second antenna, and a diplexer. The external interface body is disposed in an antenna clearance area defined by the first antenna and the second antenna. The diplexer is connected to the first antenna, the second antenna, and a feed of a board of the mobile terminal. The first filter unit is disposed between the first antenna and the external interface body and is connected to a first circuit board of the external interface body to reduce interference from the external interface body to the antenna assembly.
Multi-band antenna on the surface of wireless communication devices
An embodiment wireless communication device includes a circuit board and a cover having a back surface covering a portion of a first surface of the circuit board and an opening in the back surface. A top antenna is disposed within the cover and is electrically connected to the circuit board at a first feed point on a first edge of the circuit board. A secondary antenna disposed within the cover has a first antenna portion connected to the circuit board at a second feed point, and a second antenna portion of the second antenna extends laterally from a second edge of the circuit board over the first surface of the circuit board and between the back surface of the cover and the first surface of the circuit board such that at least a portion of the second antenna portion is exposed through the opening in the back surface.
Terahertz detector using field-effect transistor
The purpose of the present invention is to provide a terahertz detector using a field-effect transistor capable of implementing high sensitivity by exhibiting an asymmetric characteristic only with a form of a source/drain and a gate. To this end, the present invention relates to the terahertz detector using a field-effect transistor comprising: a source formed by being doped on a portion of a silicon base; a channel formed so as to encompass the source on a plane; a drain formed outside the channel; a dielectric layer formed on an upper end of the source, the channel and the drain; and a gate located at an upper end of the dielectric layer, wherein when terahertz electromagnetic waves are applied through the gate, the intensity of the electromagnetic waves is detected using a current/voltage outputted from the source and the drain.
Vehicle window glass and antenna
A vehicle window glass includes a glass plate; a dielectric body; a conductive body arranged between the glass plate and the dielectric body; and an antenna. The conductive body includes a concave portion is provided. The concave portion is interposed between a first vertical edge side and a second vertical edge side extending downward from an upper outer edge of the conductive body. The antenna includes a feeding portion and an antenna element. A part of the feeding portion and a part of the antenna element are located in a region of at least one of a region interposed between a first extension line and a second extension line extended upward from the first vertical edge side and the second vertical edge side, and of the concave portion. The feeding portion is arranged closer to the first vertical edge side than a lower end of the concave portion.
Sideline radio-frequency power coupler
Provided is a resonant structure including a microwave cavity and a sideline radio-frequency (RF) power coupler including: an inner conductor; an outer conductor sharing a central axis with the inner conductor, the outer conductor being electrically coupled to an outer wall of the microwave cavity; and an insulation layer between the inner conductor and the outer conductor.
Radio frequency (RF) conductive medium
Embodiments of the present disclosure provide a radio frequency (RF) conductive medium for reducing the undesirable insertion loss of all RF hardware components and improving the Q factor or “quality factor” of RF resonant cavities. The RF conductive medium decreases the insertion loss of the RF device by including one or more conductive pathways in a transverse electromagnetic axis that are immune to skin effect loss and, by extension, are substantially free from resistance to the conduction of RF energy.
Wide band radio frequency circulator
A wide band radio frequency (RF) circulator is provided. The circulator includes a first stage having four ports; and a second stage having four ports, wherein the first stage and the second stage are connected via a pair of reciprocal delay lines, and wherein each of the first stage and the second stage includes a pair of couplers.
Thermal management system for an electrified vehicle
A battery system according to an exemplary aspect of the present disclosure includes, among other things, a battery pack, a first sensor at an inlet of the battery pack and a second sensor at an outlet of the battery pack.
Integral light sources and detectors for an optical sensor to detect battery faults
Light is transmitted from a light source through or from a separator of a battery cell and received by one or more light detectors. The light that is normally transmitted through the separator is scattered, absorbed, wavelength-shifted or otherwise distorted by an impending fault in the vicinity of or within the separator. The change in light due to the impending fault is measured by a detector and a signal from the detector is processed to identify the impending fault so that a warning can be generated indicative of the impending fault. In particular, one or both of the light source and detector are enclosed within a battery cell housing.
Battery with built-in wireless communication
The present embodiments relate to a battery that comprises one or more battery cells and a logic unit embedded within the battery to receive data from a plurality of sensors that are also embedded within the battery. A wireless transceiver embedded within the battery communicates with the logic unit. A voltage controller embedded within the battery receives instructions from the logic unit and a voltage regulator and a current limiter that are also embedded within the battery controls an output of the battery based on one or more signals from the voltage controller.
A battery system (10) has a battery (12) for providing a first voltage and has at least one tap (15, 19, 21) that divides the battery (12) into at least one first battery element (14) for providing a first partial voltage and at least one second battery element (16) for providing a second partial voltage. A power changeover switch (18) is arranged between the at least one first battery element (14) and the at least one second battery element (16) and is designed to change over between the at least one first battery element (14) and the at least one second battery element (16) at a changeover rate to be specified.
Fuel cell stack assembly
A fuel cell stack assembly is provided which includes a first bipolar plate, a second bipolar plate, a sub-gasket, and a gas diffusion layer. The second bipolar plate may define a bypass channel with the first bipolar plate. The bypass channel includes at least one embossment formed therein. The gas diffusion layer may be disposed between the first bipolar plate and the second bipolar plate while the sub-gasket is sandwiched between metal bead seals formed in each of the first bipolar plate and the second bi-polar plate.
Redox flow secondary battery and electrolyte membrane for redox flow secondary battery
The problem addressed by the present invention is to obtain an electrolyte membrane that, as an electrolyte membrane for a redox flow secondary battery, is able to suppress the ion permeability of an active substance without detracting from proton (H+) permeability, has superior ion-selective permeability, has low electrical resistivity, and has superior current efficiency. The present invention solves the abovementioned problem by means of the electrolyte membrane for a redox flow secondary battery containing a perfluorocarbon sulfonic acid resin having a specific structure and an equivalent weight (EW), and the ion conductivity being adjusted to a predetermined range.
Operational control of fuel cells
Various examples are provided for operational control of fuel cells. In one example, among others, a system for controlling a fuel cell includes a stack temperature controller in cascade with a liquid level controller. The liquid level controller can provide a control output based at least in part upon an indication of a liquid level of a liquid fuel tank and a level reference. The stack temperature controller can provide a fan speed control output based at least in part upon an indication of a stack temperature of the fuel cell and the control output of the liquid level controller. In another example, a system for estimating methanol concentration of a fuel cell system includes a state observer that generates an estimate of the methanol concentration of fuel provided to a direct methanol fuel cell based upon a plurality of states of the fuel cell system.
Cell frame for redox flow battery, cell stack for redox flow battery, and redox flow battery
A cell frame for a redox flow battery comprises: a bipolar plate; and a frame body provided at an outer periphery of the bipolar plate, the frame body including a manifold which penetrates through front and back surfaces of the frame body and through which an electrolyte flows, and at least one slit being formed on the front surface of the frame body and forming a channel of the electrolyte between the manifold and the bipolar plate, a cross sectional shape of the slit, in a longitudinal direction of the slit, having a width w and a depth h, the width w and the depth h satisfying (A) w≥3 mm and (B) 1/8
Positive electrode for battery, and battery
A positive electrode for a battery includes a positive active material, a conductive agent, and a copolymer. The copolymer includes a constituent unit (a) represented by the following general formula (1) and a constituent unit (b) represented by the following general formula (2): (wherein R1, R2, R3, R5, R6, R7 and R9 are the same or different and denote a hydrogen atom, a methyl group or an ethyl group, R4 denotes a hydrocarbon group having 8 to 30 carbon atoms, R8 denotes a linear or branched alkylene group having 2 to 4 carbon atoms, X1 and X2 denote an oxygen atom or NH, and p denotes a number of 1 to 50).
Electrode material, electrode, nonaqueous electrolyte battery including the same, and battery pack
An electrode material for a nonaqueous electrolyte battery of the present embodiment includes a composite particle containing a carbonaceous material. A peak half-width of d-band measured from a Raman spectrum of the carbonaceous material is at 150 cm−1 or more. A ratio Lc/La of a crystallite size Lc in a c-axis direction observed at 20° to 26° in a X-ray diffraction to a crystallite size La in an a-axis direction observed at 40° to 44° is 0.7 or less.
Group IVA functionalized particles and methods of use thereof
Disclosed are functionalized Group IVA particles, methods of preparing the Group IVA particles, and methods of using the Group IVA particles. The Group IVA particles may be passivated with at least one layer of material covering at least a portion of the particle. The layer of material may be a covalently bonded non-dielectric layer of material. The Group IVA particles may be used in various technologies, including lithium ion batteries and photovoltaic cells.
Lithium ion battery components
A lithium ion battery component includes a support selected from the group consisting of a current collector, a negative electrode, and a porous polymer separator. A lithium donor is present i) as an additive with a non-lithium active material in a negative electrode on the current collector, or ii) as a coating on at least a portion of the negative electrode, or iii) as a coating on at least a portion of the porous polymer separator. The lithium donor has a formula selected from the group consisting of Li8-yMyP4, wherein M is Fe, V, or Mn and wherein y ranges from 1 to 4; Li10-yTiyP4, wherein y ranges from 1 to 2; LixP, wherein 0
Negative electrode for lithium ion secondary battery comprising negative electrode active material containing two carbons and method for manufacturing lithium ion secondary battery comprising same
The present invention relates to a negative electrode for a lithium ion secondary battery, the negative electrode containing a negative electrode active material containing a first carbon and a second carbon, in which the first carbon is spherical graphite, the second carbon is massive graphite, and the sulfur concentration in the first carbon (Sx) and the sulfur concentration in the second carbon (Sy) are each independently 0 ppm or more and 300 ppm or less.
Battery electrode and method
A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery, we have successfully demonstrated the first synthesis of a scalable carbon-coated silicon nanofiber paper for next generation binderless free-standing electrodes for Li-ion batteries that will significantly increase total capacity at the cell level. The excellent electrochemical performance coupled with the high degree of scalability rriake this material an idea candidate for next-generation anodes for electric vehicle applications. C-coated SiNF paper electrodes offer a highly feasible alternative to the traditional slurry-based approach to Li-ion battery electrodes through the elimination of carbon black, polymer binders, and metallic current collectors.
System and method for venting pressurized gas from a battery module
Present embodiments are directed to a battery module including a venting assembly and a method of manufacturing the battery module. The venting assembly may, in certain embodiments, be designed to vent gases from a plurality of battery cells disposed in a housing of the battery module. Each of the plurality of battery cells may include a battery cell vent. The venting assembly may include a lid designed to be coupled to the housing and disposed over the battery cells in the housing. In some embodiments, the lid includes a vent chamber formed in the lid and designed to receive and direct gases vented from the plurality of battery cells away from the battery module.
Nonaqueous electrolyte secondary battery insulating porous layer and nonaqueous electrolyte secondary battery laminated separator
As a nonaqueous electrolyte secondary battery insulating porous layer and nonaqueous electrolyte secondary battery laminated separator each of which allows a nonaqueous electrolyte secondary battery to have an improved discharge output characteristic, there are provided (i) a nonaqueous electrolyte secondary battery insulating porous layer containing a filler including a metal oxide and having a capacitance of not less than 0.0390 nF and not more than 0.142 nF per 19.6 mm2 and a thickness of not less than 0.1 μm and not more than 20 μm and (ii) a nonaqueous electrolyte secondary battery laminated separator including the porous layer.
Composition for heat-resistant porous layer, separator, electrochemical battery, and method for fabricating the same
A heat resistant porous layer composition for a separator for an electrochemical battery includes a compound represented by Formula 1, a polyvinylidene fluoride (PVdF)-based polymer, the PVdF-based polymer including one or more of a PVdF-based homopolymer or a PVdF-hexafluoropropylene-based copolymer in which a unit originating from hexafluoropropylene is present in an amount of 15 wt % or less based on the total weight of the PVdF-hexafluoropropylene-based copolymer, the PVdF-hexafluoropropylene-based copolymer having a weight average molecular weight of 600,000 g/mol or more, an initiator; and a solvent, wherein Formula 1 is defined herein.
Circuit board structure
A circuit board structure capable of heating a battery without requiring cost for adoption and replacement of the battery is provided. In the mounting of an auxiliary battery incorporated in an in-vehicle emergency notification device as a standby power supply for a main battery and a heater resistor for heating the auxiliary battery, a heat transfer mechanism for transferring heat generated by the heater resistor to the auxiliary battery is provided on a printed board. Further, the auxiliary battery is detachably fixed on the printed board through the heat transfer mechanism.
Each battery module of a battery pack includes a stack of serially connected battery cells, a gas discharge duct extending in a cell arrangement direction to guide gas discharged from a relief valve of each battery cell to an outside of the battery module, the gas discharge duct having a first connection opening at one end and a second connection opening at the other end, a first connection terminal piece having an inner end portion electrically connected to an electrode of one of the battery cells at one end of the serial connection and an outer end portion disposed inside the first connection opening, and a second connection terminal piece having an inner end portion electrically connected to an electrode of another one of the battery cells at another end of the serial connection and an outer end portion disposed inside the second connection opening.
Hollow packaging for cable-type secondary battery, and cable-type secondary battery comprising same
The present invention relates to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, and more specifically, to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, wherein the hollow packaging for a cable-type secondary battery comprises a packaging sheet including a sheet-type thin metal layer provided with a corrugated pattern on the surface, a first polymer resin layer formed on one surface of the thin metal layer, and a mechanical support layer formed on the other surface of the thin metal layer, wherein the packaging sheet forms a hollow space by bending so that the first polymer resin layer faces inward.
Method of manufacturing organic light-emitting display device
A method of manufacturing an organic light-emitting display device includes: preparing a substrate including pixel electrodes; forming a pixel defining layer on the substrate, the pixel defining layer exposing a central portion of each of the pixel electrodes and covering an edge portion of each of the pixel electrodes; forming partitioning walls in correspondence with at least a portion of an upper surface of the pixel defining layer, the partitioning walls including a first resin; removing a solvent in the partitioning walls by baking the partitioning walls; forming a first mask layer filling a space between the partitioning walls and exposing a first pixel electrode among the pixel electrodes, the first mask layer including a second resin; and forming a first intermediate layer on the first pixel electrode.
Display device and apparatus and method for manufacturing the same
A display device and an apparatus and method for manufacturing the same are disclosed. The display device includes: a substrate; a display unit formed on the substrate; and an inorganic layer formed on the display unit, wherein a water vapor transmission rate (WVTR) of the inorganic layer is 5×10−5 g/m2 day or less. The apparatus for manufacturing a display device includes: a chamber; a shower head for spraying a mixed gas into the chamber; a plasma generation unit for forming plasma from the mixed gas; a susceptor facing the shower head and on which a substrate is seated; and a power supply unit electrically connected to the plasma generation unit, wherein a frequency of a current supplied from the power supply unit to the plasma generation unit is between about 27 MHz and about 42 MHz.
Display device and method of manufacturing the same
A display device and a method of manufacturing the same, the display device including a substrate; a display panel on the substrate; a first film on the display panel; and a first pattern arranged along edges of the first film, the first pattern including a material having a coefficient of thermal expansion (CTE) that is different from the CTE of a material of the first film.
OLED display device
An OLED display device includes an assisting conductive layer formed on a bottom surface of an upper substrate in such a way that the assisting conductive layer is in direct contact with and electrically connected to a second electrode that is located on a top surface of a lower substrate so that electrical conduction capability of the second electrode is enhanced and the electrical resistance of the second electrode is reduced to thereby make in-plane voltage homogenous, improve consistency of displaying, and alleviate the issues of non-uniform panel brightness and mura and also help reduce the thickness of the second electrode for saving material of the second electrode and increase light transparency of the second electrode.
Organic light emitting diode structure
An organic light emitting diode (OLED) having an organic electroluminescent layer formed between a first electrode and a second electrode. One of the first and second electrodes is a transparent electrode having a surface through which light is emitted from the OLED to the outside. The transparent electrode has a plasmonic photonic crystal structure fabricated having an artificial lattice with a pitch in density variation intermediate in size between a metallic crystal and a photonic crystal formed in the same material as the transparent electrode, thereby operable to suppress propagation of the surface plasmon polaritons at the surface.
Flexible display panel, fabrication method, and flexible display apparatus
A flexible display panel is provided. The flexible display panel comprises: a flexible substrate; an organic light-emitting layer disposed on a side of the flexible substrate and having a first side facing the flexible substrate and an opposing side; and a thin-film-encapsulation layer disposed on the opposing side of the organic light-emitting layer. The thin-film-encapsulation layer includes at least one organic encapsulation layer and at least one inorganic encapsulation layer. The flexible display panel includes at least one bending area. The at least one inorganic encapsulation layer has a first side facing the flexible substrate and an opposing side. In the at least one bending area, at least one groove is formed on the opposing side of the at least one inorganic encapsulation layer. A bottom width W of the at least one groove is configured to be W ≥ n 180 ° π R .
Foldable display device
Provided is a foldable display device. The foldable display device includes a flexible substrate which includes a display area, a bezel area enclosing the display area, and a plurality of bending areas extending from one side of the bezel area; and a display unit disposed in the display area, in which the plurality of bending areas is separated from each other. Therefore, even though the foldable display device is folded, the stress concentrated due to the bending and/or folding overlapping in the bending area may be reduced.
Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same
Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
Organic light-emitting device
An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, an emission layer disposed between the first electrode and the second electrode and a hole transport region disposed between the first electrode and the emission layer. The hole transport region includes a first compound represented by Formula 1 and a second compound represented by Formula 2, and the first compound and the second compound are different from each other.
Functionalized pyranopyran-derived acceptors for donor-acceptor polymers
An organic photovoltaic device includes an anode and a cathode. The organic photovoltaic device includes an active layer between the anode and the cathode. The active layer includes a p-type material. The p-type material includes a donor-acceptor (DA) polymer. An acceptor unit of the DA polymer includes a functionalized pyranopyran-dione compound or a functionalized naphthyridine-dione compound.
Organic semiconductor material
Provided are: a macromolecular compound for providing an organic semiconductor material exhibiting excellent conversion efficiency; a starting-material compound having high material design freedom; and methods for producing the same.The macromolecular compound according to the present invention comprising a benzobisthiazole structural unit represented by the formula (1): [in the formula (1), T1 and T2 each independently represent an alkoxy group, a thioalkoxy group, a thiophene ring optionally substituted by a hydrocarbon group or an organosilyl group, a thiazole ring optionally substituted by a hydrocarbon group or an organosilyl group, or a phenyl group optionally substituted by a hydrocarbon group, an alkoxy group, a thioalkoxy group, an organosilyl group, a halogen atom or a trifluoromethyl group; and B1 and B2 each represent a thiophene ring optionally substituted by a hydrocarbon group, a thiazole ring optionally substituted by a hydrocarbon group, or an ethynylene group].
Hall element for 3-D sensing and method for producing the same
A method of forming a 3D Hall effect sensor and the resulting device are provided. Embodiments include forming a p-type well in a substrate; forming a first n-type well in a first region surrounded by the p-type well in top view; forming a second n-type well in a second region surrounding the p-type well; implanting n-type dopant in the first and second n-type wells; and implanting p-type dopant in the p-type well and the first n-type well.
Light emitting device
A light emitting device in which a bonding pad is soldered to a mounting substrate, wherein the bonding pad may be formed in various shapes that can minimize the occurrence of voids during soldering or heat fusion.
A light-emitting device comprises a light-emitting stack comprising a first surface, a roughened surface, and a sidewall connecting the first surface and the roughened surface; an electrode structure formed on the roughened surface of the light-emitting stack; a dielectric layer formed on the first surface of the light-emitting stack; a barrier layer covering the dielectric layer; a first reflective electrode between the barrier layer and the first surface of the light-emitting stack; and a passivation layer covering the sidewall of the light-emitting stack and the roughened surface of the light-emitting stack which is not occupied by the electrode structure, wherein the electrode structure is surrounded by the passivation layer, and the passivation layer contacts an surface of the electrode structure and terminates at the surface of the electrode structure.
Semiconductor light emitting device
A semiconductor light emitting device includes a light emitting structure including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer, sequentially stacked on a substrate along a first direction, and including an exposed region exposing the first conductivity-type semiconductor layer. A first contact electrode is in the exposed region, a second contact electrode is on the second conductivity-type semiconductor layer, and an insulating layer covers the light emitting structure. Separate electrode pads penetrate the insulating layer to be electrically connected to the first contact electrode and the second contact electrode. A side surface of at least one of the first and second electrode pads may extend to be coplanar with a side surface of the substrate along the first direction.
Ultraviolet light-emitting devices incorporating graded layers and compositional offsets
In various embodiments, light-emitting devices incorporate graded layers with compositional offsets at one or both end points of the graded layer to promote formation of two-dimensional carrier gases and polarization doping, thereby enhancing device performance.
Light emitting diode and fabrication method thereof
An LED fabrication method includes forming release holes by focusing a laser at the substrate back surface, and forming stealth laser-blast areas by focusing a laser inside the substrate on positions corresponding to the release holes; communicating the release holes with the stealth laser-blast areas to release impurities generated during forming of the stealth laser-blast areas from the substrate through the release holes, thereby avoiding low external quantum efficiency resulting from adherence of the released material to the side wall of the stealth laser-blast areas. By focusing on a position with 10 μm˜40 μm inward from the substrate back side, adjusting laser energy and frequency to burn holes inside the substrate to penetrate and expose the substrate back surface, thereby effectively removing by-products, and reducing light absorption by such by-products, light extraction from a side wall of the LED can also be improved and light extraction efficiency is enhanced.
Self-emission type display and repairing method thereof
The present invention proposes a self-emission type display and a repairing method thereof. The self-emission type display includes a carrier substrate and a light-emitting element. The carrier substrate includes a first electrode, a second electrode, and a plurality of repairing electrodes. The first electrode has a plurality of first strip portions connected to a first level. The second electrode has a plurality of second strip portions connected to a second level. The first electrode is separated from the second electrode, and the first level is different from the second level. The repairing electrodes are electrically insulated from the first electrode and the second electrode. The light-emitting element is disposed on the carrier substrate and has a first connecting portion and a second connecting portion. The first connecting portion is electrically connected to the first level through the first strip portions. The second connecting portion is electrically connected to the second level through the second strip portions.
Method of polyimide diffusion bonding for multijunction solar cells
A method of manufacturing a solar cell comprising providing a first semiconductor substrate with an epitaxial sequence of layers of semiconductor material forming a solar cell deposited over the first semiconductor substrate using an MOCVD reactor; depositing a metal layer on top of the sequence of layers of semiconductor material, the metal layer including a top surface layer composed of gold or silver; providing a polymer film; depositing a first metallic adhesion layer that has a coefficient of thermal expansion substantially different from that of the top surface layer on one surface of the polymer film; depositing a second metal adhesion layer over the first metallic adhesion layer and having a different composition from the first layer and having no chemical elements in common; and adjoining the second adhesion layer of the polymer film to the metal layer of the sequence of layers and permanently bonding it thereto by a thermocompressive diffusion bonding technique.
Solar cell unit
A solar cell unit, comprising a solar cell with a light receiving surface, and a transparent optical element frictionally connected to the receiving surface. The optical element having a portion of surface formed substantially convex such that sunlight striking the receiving surface is bundled by the convex receiving surface. The light receiving surface is surrounded by a shoulder-shaped ledge that has a first rim surface and a second rim surface. A first alignment mark is provided in association with the first rim surface and a second alignment mark is provided in association with the second rim surface to position the optical element in regard to the receiving surface of the solar cell via the two alignment marks. The first alignment mark being spaced apart from the second alignment mark in order to guide the incident sunlight totally or at least largely to the receiving surface.
Thin-film photovoltaic device with wavy monolithic interconnects
A thin-film optoelectronic module device (100) and design method comprising at least three monolithically-interconnected cells (104, 106, 108) where at least one monolithically-interconnecting line (250) depicts a spatial periodic or quasi-periodic wave and wherein the optoelectronic surface of said thin-film optoelectronic module device (100) presents at least one set of at least three zones (210, 220, 230) having curves of substantially parallel monolithic interconnect lines. Border zones (210, 230) have a lower front-contact sheet resistance than that of internal zone (220). Said curves of substantially parallel interconnecting lines may comprise peaks of triangular or rounded shape, additional spatial periods that are smaller than a baseline period, and mappings from one curve to the adjacent curve such as in the case of non-rectangular module devices (100). The device (100) and design method are advantageous to reduce costs and materials to manufacture thin-film optoelectronic module devices (100) while increasing production yield, reliability, aesthetic appearance, and range of applications.