Component mounting method which fits and pushes component on substrate
There is provided a component mounting method for fitting a component including downwardly-extending insertion pins on a substrate by sucking the component by a suction nozzle and moving the suction nozzle such that the insertion pins of the sucked component are inserted into pin insertion holes formed in a substrate. The component mounting method includes: positioning the insertion pins and the pin insertion holes, and then pushing the component against the substrate by the suction nozzle, thereby fitting the component on the substrate such that the insertion pins are inserted into the pin insertion holes; and pushing again the component against the substrate after the component is fitted on the substrate, so as to push the insertion pins into the pin insertion holes.
Methods and devices for reducing communication and power signal leakages from filter assemblies
Novel assemblies for use in conjunction with RF shielded enclosures and the like include one or more RF power and signal filters connectibly inserted, attached to, or otherwise made a part of optimized cavities or receptacles formed within an optimized frame of the assembly. The use of optimized cavities or receptacles greatly reduces the number of exterior fasteners needed to connect filters to the assembly or the assembly to an enclosure which, in turn, reduces leakage. The optimized cavities or receptacles may be arranged in a compact manner in order to make optimum use of the available space on an optimized frame of the assembly.
A printed circuit assembly includes a printed circuit board, a heat generating component coupled to the printed circuit board, and a conductive substrate extending parallel to the printed circuit board. The conductive substrate includes a flexing structure and a protrusion disposed on the flexing structure. The protrusion extends toward the printed circuit board opposite the heat generating component.
Electronic apparatus and connection device
An electronic apparatus includes a first body; a second body; a connection device including: a connection body through which the first body is connected with the second body; with a first torque generator and a second torque generator provided inside the connection body. When an angle value is in a first preset threshold range, the first torque generator generates a first torque for balancing a second torque generated by gravitation of the first body. When the angle value is larger than a maximum value of the first preset threshold range, the first torque generator generates a third torque and the second torque generator generates a fourth torque; the third torque and the fourth torque balancing a fifth torque generated by a first composite force, which is the composite force of the gravitation of the first body and a push force acting on a touch control unit.
System and method for providing AC jumper management and identifying AC jumper topology
A server rack includes a power mapping module, a power receptacle that includes a power tine communication module wherein the power receptacle is uniquely associated with a rack unit of the server rack and is collocated with the associated rack unit, and a server coupled to the power mapping module via a management network, wherein the server asserts an interrupt request to the power mapping module via the management network. The power mapping module sends a unique identifier via the first power tine communication module in response to receiving the interrupt request. The server receives the unique identifier via the second power line communication module and sends the unique identifier to the power mapping module via the management network. The power mapping module determines that the server is installed into the rack based upon the receipt of the unique identifier.
Shroud for an electronic device
A shroud including a body comprising a first side, a second side opposite the first side, and a printed circuit board assembly (“PCBA”) reception unit configured to receive a PCBA unit of an electronic device, wherein the PCBA unit comprises multiple light emitting diode (“LED”) units which emit multiple light emitting diode (“LED”) signals. The shroud can also include a plurality of ribs located on the body and configured to contact a cover for the electronic device, wherein the plurality of ribs are configured to substantially isolate each of the multiple LED signals, and wherein the body and the plurality of ribs comprise a resilient material.
Printed wiring board
A printed wiring board includes a first substrate having first pads and second pads such that the first pads are positioned to mount an electronic component on the first substrate and that the second pads are positioned to electrically connect a second substrate to the first substrate, and metal posts formed on the second pads, respectively, such that the metal posts are positioned to mount the second substrate on the first substrate. The first substrate and the metal posts satisfy that a ratio, b/e, is in a range from 0.3 to 1.0, where b represents a length of each of the metal posts and e represents a thickness of the first substrate.
Method of manufacturing wiring substrate, and wiring substrate
A method of manufacturing a wiring substrate according to the present invention includes a step of forming a wiring layer including connection terminals on a first insulating layer; a step of forming a second insulating layer on the wiring layer and on the first insulating layer; a step of forming electrically insulative dummy portions separated from the wiring layer on the first insulating layer through patterning of the second insulating layer; a step of forming a third insulating layer on the wiring layer, on the dummy portions, and on the first insulating layer; and a step of forming openings in the third insulating layer for exposing the connection terminals in such a manner that upper end portions of the connection terminals protrude from the third insulating layer, and lower end portions of the connection terminals are embedded in the third insulating layer.
Method of manufacture an electric circuit
In accordance with an embodiment, a method for manufacturing an electric circuit that includes providing a support having a first region, the first region having a first conductor that has a first sidewall and a second conductor that has a second sidewall, wherein the first conductor is electrically isolated from the second conductor is provided. A distance between the first sidewall and the second sidewall is increased using a technique such as stamping, etching, or trimming. A first circuit element is coupled to the first conductor and encapsulated in a mold compound. In accordance with another embodiment, an electric circuit includes a support having interconnect with sidewalls wherein notches extend from one or more of the sidewalls into the interconnect. A circuit element is coupled to the interconnect by a bonding agent and protected by a protective structure.
A wiring board includes an insulating layer; and a wiring layer embedded in the insulating layer at one surface side of the insulating layer, one surface of the wiring layer being exposed from one surface of the insulating layer, the wiring layer including a first portion and a second portion whose width is wider than that of the first portion, one surface of the first portion and one surface of the second portion being flush with each other, and the first portion being thinner than the second portion.
Hybrid printed circuit assembly with low density main core and embedded high density circuit regions
A high density region for a low density circuit. At least a first liquid dielectric layer is deposited on the first surface of a first circuitry layer. The dielectric layer is imaged to create plurality of first recesses. Surfaces of the first recesses are plated electro-lessly with a conductive material to form first conductive structures electrically coupled to, and extending generally perpendicular to, the first circuitry layer. A plating resist is applied. A conductive material is electro-plated to the first conductive structure to substantially fill the first recesses, and the plating resist is removed.
To provide a wiring board ensuring adhesion strength of a connecting terminal to reduce the connecting terminal from being fallen over or peeled off under fabrication process. The wiring board according to the present invention includes a laminated body where one or more layer of each of an insulating layer and a conductor layer are laminated. The wiring board includes a plurality of connecting terminals formed separately from one another on the laminated body and a filling member filled up between the plurality of connecting terminals. The filling member is filled up to a position lower than a height of the plurality of connecting terminals. The connecting terminals has a cross section with a trapezoidal shape where a width of a first principal surface on a side contacting the laminated body is wider than a width of a second principal surface facing the first principal surface.
Microelectronic device attachment on a reverse microelectronic package
The present description relates to the field of fabricating microelectronic structures. The microelectronic structure may include a microelectronic substrate have an opening, wherein the opening may be formed through the microelectronic substrate or may be a recess formed in the microelectronic substrate. A microelectronic package may be attached to the microelectronic substrate, wherein the microelectronic package may include an interposer having a first surface and an opposing second surface. A microelectronic device may be attached to the interposer first surface and the interposer may be attached to the microelectronic substrate by the interposer first surface such that the microelectronic device extends into the opening. At least one secondary microelectronic device may be attached to the interposer second surface.
Printed circuit board and display device having the same
A circuit board, including a plurality of wiring lines extending along a first direction and arranged side by side along a second direction perpendicular to the first direction; a plurality of pads having a predetermined length along the first direction, the plurality of pads being on the wiring lines; ground pad outside the pads, the wiring lines including first wiring lines delivering a positive polarity signal and second wiring lines delivering a negative polarity signal, the pads including first pads on the first wiring lines and second pads on the second wiring lines, and a cross-sectional area of each wiring line being substantially equal to that of each pad.
Conductive film and method for manufacturing same
The present invention provides a conductive film including a plurality of groove units of which horizontal sections are formed in a lattice form, and a plurality of cells that are regions surrounded by the groove units, wherein at least a part of the groove unit include a conductive pattern formed through separation by a separation unit, and a method for preparing the same.
Flexible board and electronic device
A flexible board includes a first sheet section including a first principal surface, a second sheet section including a second principal surface and provided in a different position from the first principal surface in a normal direction to the first principal surface, at least one first bent sheet section configured to connect ends of the first and second sheet sections, the first bent sheet section including a third principal surface not parallel to the first and second principal surfaces, and at least two second bent sheet sections each including a fourth principal surface and provided in different positions from the third principal surface in a normal direction to the third principal surface. The second bent sheet sections are positioned so as to sandwich the first bent sheet section therebetween when viewed in a plan view in the normal direction to the third principal surface.
Substrate and method for mounting semiconductor package
A substrate includes a join-structure including a semiconductor package, first electrode pad, bump, second electrode pad, and circuit substrate joined in the order named. The substrate also includes a first wire and a second wire formed in a region below a corner of the semiconductor package. The first and second wires are configured to detect a change in electrical resistance value when the first wire or the second wire is disconnected. One of the first and second wires is connected to the first electrode pad or the second electrode pad. A break strength of each of the first wire and the second wire is lower than a break strength of the join-structure.
Circuit substrate and electronic device
A circuit substrate includes: a plurality of signal wirings formed at different positions of the circuit substrate in a thickness direction and extending in parallel in the circuit substrate; and ground layers or power supply layers formed at both sides of the circuit substrate in the thickness direction by interposing the plurality of the signal wirings between the ground layers or between the power supply layers, wherein the plurality of signal wirings are electrically coupled with each other by a plurality of conductors formed at an interval narrower than an interval by which a resonance is caused.
Circuit board and electronic device
A circuit board includes a substrate, a first ground electrode group, and a first pair of signal electrodes. The first ground electrode group includes a plurality of first ground electrodes, where each of the plurality of the first ground electrodes is disposed at a corresponding one of vertexes of a first rectangular area in a surface of the substrate. the first pair of signal electrodes is disposed in the first rectangular area and is arranged in a first direction parallel to a side of the first rectangular area.
Plasma generating system having movable electrodes
A plasma generating system is provided. The plasma generating system includes: a pair of electrodes having distal ends; an electrode holder holding the pair of electrodes; a gate having a surface on which the electrode holder is slidably mounted and adapted to be controlled by sliding the electrode holder on the surface; and a resilient member secured to the gate and adapted to generate a force to close the opening. The distal ends are adapted to move into an opening of the gate as the electrode holder slides along a direction on the surface and adapted to generate an electric arc to thereby ignite plasma in a gas.
Unignited plasma state discrimination device and unignited plasma state discrimination method
In detecting the unignited state of plasma based on a reflected wave, false detection during a normal plasma ignition time is prevented so as to detect the unignited state during plasma abnormality. When a pulse output is supplied to a plasma load by pulse driving from an RF power source, the unignited state of plasma abnormality is detected on the basis of the continuous state of the reflected wave, whereby a total reflected wave generated in the unignited state during plasma abnormality is detected in distinction from the reflected wave generated in the normal ignited state. With this configuration, in detecting the unignited state by comparing a peak value of the reflected wave with a threshold, it is possible to prevent that a reflected wave generated in the normal ignited state is erroneously detected as the total reflected wave that is generated in the abnormal unignited state.
System, method, and apparatus for self-adaptive scheduled lighting control
A lighting control device is provided which includes a microcontroller, at least one wireless transceiver, at least one dimmer, one or more lighting terminals powered by the at least one dimmer, at least one environmental sensor, and at least one input device. In operation, the microcontroller obtains environmental data from the at least one environmental sensor, obtains input data from the at least one input device, transmits the environmental data and the input data to an external server, obtains a lighting operating schedule based on the environmental data and the input data from the external server, and executes the lighting operating schedule from the external server by controlling one or more smart bulbs via the at least one wireless transceiver and controlling the electrical current output to lighting terminals.
Wireless lighting and electrical device control system
The invention provides a plurality of individually addressable radio frequency (RF) modules, any of which can be installed with any electrical device such as an ambient condition sensor or an ambient condition modifier. A prime example would be a light fixture, whether with or without a dimmable light source efficient dimming and integrated smart sensor networking related to the lighting system itself or to other systems such as parking monitors, fire alarm monitors or security alarm monitors. Independent control processing in each lighting fixture or electrical device allows a multiplicity of sensors to be locally employed and their data to control local conditions or communicate to adjoining fixtures and electrical devices and thereby control larger portions of the lighting system network or network to several unrelated systems.
Spotlight and method of controlling thereof
A spotlight and a method of controlling the spotlight with an external device. The spotlight includes a first light source, a second light source, and a power supply. The spotlight also includes a transceiver configured to communicate wirelessly with the external device and a processor. The processor is operable to receive a first input from the external device specifying a first amount of power to be provided to the first light source, and receive a second input from the external device specifying a second amount of power to be provided to the second light source. The processor is also operable to control the power supply to provide the first amount of power to the first light source in response to the first input, and control the power supply to provide the second amount of power to the second light source in response to the second input.
Wireless control device
A wall-mountable wireless control device may comprise a yoke, a faceplate assembly, an antenna, a radio-frequency communication circuit, and/or a control circuit. The radio-frequency communication circuit may be configured to transmit or receive radio-frequency signals via the antenna. The faceplate assembly may comprise a conductive element that is configured to operate as a radiating element of the antenna when the faceplate assembly is attached to the yoke. The conductive element may comprise a conductive material on the front surface of the faceplate. The conductive element may be attached to a rear surface of the faceplate (e.g., as a conductive backer). The conductive element may be located inside of the faceplate. The conductive element may comprise metallization applied to a plastic carrier of the faceplate. The faceplate assembly may comprise an adapter plate comprising a surface on which the conductive element is located.
Multiple location load control system
A multiple location load control system comprises a main device and remote devices, which do not require neutral connections, but allow for visual and audible feedback at the main device and the remote devices. The main device and the remote devices are adapted to be coupled together via an accessory wiring. The main device can be wired on the line side and the load side of the load control system. The main device is configured to enable a charging path to allow the remote devices to charge power supplies through the accessory wiring during a first time period of a half-cycle of the AC power source. The main device and the remote devices are configured to communicate with each other via the accessory wiring during a second time period of the half-cycle, for example, by actively pulling-up and actively pulling-down the accessory wiring to communicate using tri-state logic.
A light emitting diode (LED) lighting arrangement for a lighting fixture includes: a lighting strip comprising a plurality of light emitting diodes (LEDs) arranged along a length of the lighting strip; a first multi-faceted side wall reflector extending from a first side of the lighting strip at an angle such that the first multi-faceted side wall reflector extends along an entire length of the lighting strip and away from a bottom portion of a light emitting portion of each of the light emitting diodes (LEDs); and a second multi-faceted side wall reflector extending from a second, opposite side of the lighting strip at an angle such that the second multi-faceted side wall reflector extends along an entire length of the lighting strip away from the bottom portion of the light emitting portion of each of the light emitting diodes (LEDs). The first and second multi-faceted side wall reflectors cause light produced by the plurality of light emitting diodes (LEDs) to be amplified and formed into a uniform beam.
Method and apparatus for dimmable LED driver
Aspects of the disclosure provide a method for driving dimmable load. The method includes detecting a dimming characteristic in an energy source from which a load draws a first energy according to the dimming characteristic. The dimming characteristic requires a second energy in addition to the first energy to be drawn from the energy source to sustain an operation of the energy source. The method further includes biasing a switch to consume the second energy. The second energy and the first energy are drawn from the energy source to sustain the operation of the energy source.
Device and method for controlling insulation switch
An apparatus and a method for controlling an isolated switch are disclosed. The apparatus and the method for controlling an isolated switch according to the present invention, configure a circuit so as to maintain a light emitting diode (LED) included in an isolated switch in an OFF state at normal times and control the LED in an ON state when an event occurs in an isolated switch such as a photo MOS relay to reduce power consumed for emitting the LED by decreasing a duration for which the LED is maintained in an emission state and improve durability of a system adopting the isolated switch by improving a life-span of the isolated switch.
Dimming lighting circuit and luminaire
A dimming lighting circuit includes: a rectifier circuit; a phase detection circuit which outputs a dimming signal having a signal level corresponding to a conduction phase angle of an AC voltage; and a DC-DC converter which receives a DC voltage output from the rectifier circuit and supplies a light source with a DC current corresponding to the signal level of the dimming signal output from the phase detection circuit. If the conduction phase angle detected when the dimming lighting circuit receives the AC voltage at power-on is less than or equal to a predetermined angle, the phase detection circuit outputs, as the dimming signal, a substitute signal having a signal level corresponding to a conduction phase angle greater than the conduction phase angle of the AC voltage, for a predetermined time period.
LED driver which can be used with either trailing edge or leading edge dimmers
A phase control dimming LED driver is able to achieve complete stabilization of both TRIAC and trailing edge dimmers by using a large inductor to limit the inrush normally associated with the switching on of the TRIAC during each half cycle. Such a large inductor is not normally used because when a trailing edge dimmer is applied, a damaging voltage surge known as “ring up” can be generated when the trailing edge dimmer switch turns off. In this invention the inductor is placed after the input rectifier bridge and equipped with a diode and resistor which allow the energy in the inductor at the moment when a trailing edge dimmer switches off to be harmlessly dissipated.
System and method for a switched-mode power supply
In accordance with an embodiment, a method of operating a switched-mode power supply includes controlling a first switch coupled between an inductor and a reference node. Controlling includes modulating a first switching signal to control a first current through the first switch to a first predetermined current, and attenuating a current supplied by the first switch to the inductor in accordance with an attenuation factor to form an attenuated current. Attenuating includes providing a pulse modulated signal to a second switch coupled between the first switch and the inductor, where the attenuation factor is related to a pulse density of the pulse modulated signal.
Control circuit and control method for illumination apparatus
An error signal generating unit is configured such that (i) in a calibration period, the error signal generating unit is set to a first state in which it amplifies an error signal by amplifying a difference between a predetermined first reference voltage and the lowest one from among multiple first detection voltages, and such that (ii) after the calibration period, the error signal generating unit is set to a second state in which it generates the error signal by amplifying a difference between a second detection voltage and a second reference voltage. A reference voltage setting unit holds, as the second reference voltage, the largest value of the second detection voltage detected in the calibration period.
Multichannel constant current LED driving circuit, driving method and LED driving power
A multichannel constant current LED driving circuit can include: (i) a power stage circuit having a power switching transistor, an inductor, and a rectifier circuit, where the power stage circuit is configured to receive a DC bus voltage, and to generate a pseudo-constant output signal to drive a plurality of LED strings; (ii) a current control unit configured to control an average current of each of the plurality of LED strings in accordance with a corresponding one of a plurality of dimming signals; and (iii) the current control unit being configured to control the power switching transistor in accordance with a current feedback signal that represents a current flowing through the LED strings, where the plurality of LED strings are coupled in series to receive the pseudo-constant output signal.
Complementary converter for switch mode power supply
A complementary converter is a switch mode converter circuit that uses one pulse-width modulation (PWM) controller and one power MOSFET to run a two-stage power-factor-corrected (PFC) power supply. The two-stage power-factor-corrected power supply can include a power-factor-corrected boost converter, and a DC-to-DC converter (either step-up or step-down). The DC-to-DC converter can be, e.g., a Flyback, Forward, Cuk, or Buck Converter. The complementary converter circuit includes a voltage input section that takes a universal VAC input and rectifies the input. Then the PFC boost converter boosts the rectified half-cycle DC to a DC line at a higher voltage. The complementary converter circuit further includes an integrated circuit with the power-factor-correction and PWM switching capabilities to control the converters. The DC-to-DC converter brings the voltage down to an appropriate level for the final load (e.g., LEDs).
High-precision LED control circuit, method and LED driver thereof
In one embodiment, a light-emitting diode (LED) driver can include: (i) a reference voltage control circuit configured to provide a reference voltage signal in response to an enable signal; (ii) a current control circuit configured to control an output current of the LED driver in response to the reference voltage signal; and (iii) the LED driver being configured to drive an LED load when the enable signal is active.
Induction heating cooker
An induction heating cooker includes a top plate on which an object to be heated is placed, a plurality of heating coils disposed adjacent to one another below the top plate to generate inductive magnetic fields to heat the object to be heated, a plurality of temperature detectors operable to detect a temperature of the object to be heated; and a controller operable to control operating states of the heating coils based on detection results of the temperature detector, wherein the plurality of temperature detectors are disposed widely below the top plate, and the number of the temperature detectors is less than the number of the heating coils.
Optimized synchronization procedure for prolonged periods of sleep
A wireless device and method are described herein for implementing synchronization procedures when the wireless device operates using a prolonged sleep mode in a cellular network, wherein the synchronization procedures have a benefit of reducing the energy consumption of the wireless device's battery.
Method and apparatus for transmitting indication in wireless communication system
A method and apparatus for transmitting an indication in a wireless communication system is provided. A user equipment (UE) receives information on a configuration of a second cell from a first cell, performs a synchronization procedure with the second cell, and after the synchronization procedure is successfully performed, transmitting an indication, which indicates that the second cell is successfully configured, to the first cell. Accordingly, a radio resource control (RRC) connection reconfiguration complete message is transmitted after the synchronization procedure.
Method and apparatus for transmitting message in wireless communication system
A method and apparatus for transmitting a message in a wireless communication system is provided. A user equipment (UE) submits a message to a packet data convergence protocol (PDCP) layer and a radio link control (RLC) layer, detects a radio link failure or a handover failure, checks whether the RLC layer receives acknowledgement (ACK) to the message from the network, reestablishes the connection with the network, and retransmits the message upon the reestablishment if the RLC layer does not receive the ACK to the message.
Establishing a device-to-device communication session
A method is disclosed for establishing a device-to-device communication session between mobile devices which are mutually connectable via a D2D communication channel (DDC) and individually connectable to a mobile network (MN), including preloading an initiation key on each of the mobile devices, the initiation key being associated with a validity period; and on each of the mobile devices: verifying a validity of the initiation key based on a current time; if the initiation key is deemed valid, generating a session key using the initiation key by using the initiation key in performing a key agreement procedure between the mobile devices over the D2D communication channel (DDC), the key agreement procedure resulting in the session key if the initiation key used by each of the mobile devices matches; and establishing the D2D communication session over the D2D communication channel (DDC) based on the session key.
Pairing of a battery monitor to a communication device
A monitoring system comprises a storage device monitor and a communication device. The storage device monitor is powered by an energy storage device (e.g., battery or fuel cell) to which the storage device monitor is attached. The communication device is mounted on an industrial vehicle or battery charger. A load is electrically connected to the communication device that is external to and independent from the storage device monitor. In operation, the communication device transmits an encoded message to the load. A controller of the storage device monitor detects the encoded message by sensing changes in a characteristic of the energy storage device that occur responsive to the communication device transmitting the encoded message to the load. The controller of the storage device monitor converts the encoded message into a discovery parameter, and pairs with the communication device across a wireless network based upon the discovery parameter.
Methods to preemptively search and select LTE-direct expressions for uninterrupted device-to-device communication
The disclosure generally relates to preemptively searching and selecting LTE-Direct Expressions to maintain continuity in availing services via LTE-Direct and thereby support uninterrupted device-to-device (D2D) communication when a current LTE-Direct session experiences loss or degradation. For example, in various embodiments, a wireless device may establish a first D2D connection with a peer device to access a service shared at the peer device. The wireless device may further discover at least one alternate peer device sharing the service while the first D2D connection is active such that a second D2D connection with the at least one alternate peer device can be established in response to loss and/or degradation associated with the first D2D connection.
Docking station for an enteral feeding pump
Described herein are concepts, systems, circuits and techniques for a docking station configured to couple to an enteral feeding pump or other medical device. In one embodiment, the docking station includes a wireless transmitter for communicating data, such as operating parameters and/or status, to a remote monitor over a wireless communication link, to permit remote monitoring of certain pump diagnostics. In some embodiments, the docking station may utilize the wireless communication link to permit control and/or data exchange with the feeding pump. This may be in addition to or in place of the remote monitoring. The pump may also contain a receiver for receiving data such as operating parameter instructions, general operating instructions, and/or commands.
Apparatus and method for random access with multiple antennas in a wireless network
A base station enables a mobile station to employ a random access retransmission scheme in a wireless communication network. The mobile station includes a plurality of antennas configured to communicate with the base station. The mobile station also includes a processing circuitry coupled to the plurality of antennas. The processing circuitry is configured to perform a random access during a random access channel (RACH) burst. The processing circuitry also is configured to at least one of: transmit a random access signal with at least one of an initial transmit power level and an initial transmit beamwidth, and, in response to a random access attempt failure, change at least one of a transmit (Tx) power level and a Tx beamwidth and retransmit the random access signal.
Semi-persistent resource allocation of small packet transmission
Various communication systems may benefit from power efficiency. For example, certain communication systems associated with the long term evolution (LTE) of the third generation partnership project (3GPP) may benefit from methods and devices for providing power efficient support of small packet transmission. A method can include determining whether a position of a device is static. The method can also include, when the position of the device is determined to be static, allocating at least one semi-persistent resource for a time when the device is in an idle state.
High-efficiency Wi-Fi (HEW) station and access point (AP) and method for random access contention
Embodiments of a high-efficiency Wi-Fi (HEW) station, access point (AP), and method for random access contention in a wireless network are generally described herein. In some embodiments, the HEW station may receive a beacon frame that indicates a number of trigger frames (TFs) included in a beacon interval. The beacon frame may be received from an HEW access point (AP) in channel resources that include multiple sub-channels. The HEW station may receive a random access TF that indicates a random access portion of the sub-channels that are allocated for random access contention during an uplink transmission period. The HEW station may select a candidate sub-channel from the channel resources. When the candidate sub-channel is included in the random access portion, the HEW station may transmit an association request (AR) frame on the candidate sub-channel during the uplink transmission period.
Method and device for retransmitting uplink data in wireless communication system
The present invention relates to a wireless communication system. Particularly, the present invention provides a method for enabling a user equipment (UE) to retransmit uplink data on the basis of a signal received through a physical hybrid ARQ indicator channel (PHICH) in a wireless communication system and a device for the same, and the method for retransmitting uplink data comprises the steps of: receiving, from a base station, an indication on whether or not to detect the PHICH; retransmitting the uplink data on the basis of a PHICH detection result if the received indication is to detect the PHICH; and retransmitting the uplink data on the basis of an uplink grant received from the base station if the received indication is not to detect the PHICH.
Scheduling apparatus and method for multicast broadcast service
Provided are a scheduling apparatus and method for a multicast broadcast service. Scheduling information is configured with at least one of information related to a location in which each multicast broadcast service, which is identified by a unique identifier within one scheduling period, starts and information related to a location in which each multicast broadcast service ends, and a scheduling block including the configured scheduling information is generated. There is an advantage that power management of user equipment is easy, and a time delay when initially entering the MBMS and a channel change time when selecting a different MBMS are reduced.
User equipment uplink toggling for dual connectivity networks
A Long Term Evolution (LTE) protocol enhancement realizes the full benefit of dual connectivity User Equipment (UE) in LTE networks by providing a toggling mechanism to alleviate uncertainty in available transmit power, or power headroom, for uplink transmissions so that efficient utilization of the uplink radio resources can be achieved in dual connectivity. A new field for Radio Resource Control (RRC) messages enables toggling for alternating transmissions to Master and Secondary Evolved Node Bs (MeNBs and SeNBs) during alternating time periods. An enhanced Media Access Control Element enables toggling by the MeNB, SeNB or UE. In one embodiment, the UE schedules uplink transmissions to a SeNB during even numbered time divisions when the UE schedules the uplink transmissions to the MeNB during the odd numbered time divisions, or during the odd numbered time divisions when the UE schedules the uplink transmissions to the MeNB during the even numbered time divisions.
Systems, methods, and appartatuses for bearer splitting in multi-radio HetNet
Systems and methods for bearer splitting among multiple radio links are disclosed herein. User equipment (UE) may be communicatively coupled to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB) by multiple radio links (e.g., an LTE link and a WLAN link). A transmitter may dynamically determine a splitting policy for how to split traffic among each link (e.g., what proportion to send over each link). In some embodiments, the transmitter may determine the splitting policy explicitly based on lower layer metrics. Alternatively, or in addition, each radio access interface may request data when a transmission opportunity becomes available, and the splitting policy may be determined implicitly from the data requests. For a UE, the splitting policy may be determined with network assistance, which may include a resource allocation for an LTE link, a probability of successful transmission over a WLAN link, and/or the like.
Radio communication apparatus, information processing apparatus, communication system, and method of controlling a radio communication apparatus according to information controlling a condition in which an access request is to be executed
A radio communication apparatus includes a receiving unit configured to receive information controlling a timing at which an access request for accessing an access destination over a network is to be executed. The radio communication apparatus also includes a control unit configured to control execution of the access request with a timing controlled based at least in part on the information. An associated method, medium and an information processing apparatus are also described.
Wireless communication method and apparatus for transferring buffered enhanced uplink data from a mobile station to a Node-B
A method and apparatus for transferring buffered enhanced uplink (EU) data is disclosed. The WTRU transmits an EU data transmission request message. The WTRU determines, based on the EU data scheduling message, whether granted resources allow for the amount of EU data stored in the buffer to be transmitted and transmits a portion of the EU data stored in the buffer along with an indication indicating whether the granted resources allow the amount of EU data stored in the buffer to be transmitted.
Method and apparatus for primary channel detection
Methods and apparatuses are provided for mitigating interference in a Wireless Local Access Network or WLAN that may be caused by a radio node. Signal measurements are monitored at frequencies corresponding to one or more WLAN channels in one or more frequency bands. It is determined, based on the signal measurements at the frequencies, whether there are any channels among possible primary and secondary channel pairings of the WLAN channels that are being used by the WLAN as secondary channels. Spectrum usage by the radio node is controlled in dependence on the determination.
Base station apparatus, mobile station apparatus and circuit, and channel switching method
A base station apparatus including a plurality of communication units which communicate through a different plurality of communication channels with an upper layer apparatus of the base station apparatus, a base station information acquisition unit which acquires base station information relating to the state of the base station apparatus, a channel selection unit which selects any of the plurality of communication channels in accordance with base station information, and a channel switching unit which dynamically switches the channel which is used for transmission of traffic of the mobile station apparatus to a channel which is selected by the channel selection unit.
Method for changing pattern of reference signals according to movement speed of user equipment in wireless communication system, and an apparatus therefor
A method for transmitting a reference signal by a base station to a user equipment in a wireless communication system is disclosed. The method includes transmitting the reference signal to the user equipment according to a first pattern corresponding to a first speed section, and if movement speed of the user equipment is changed to a second speed section from the first speed section, transmitting the reference signal to the user equipment according to a second pattern corresponding to the second speed section, wherein, if the second speed section is a higher-speed section than the first speed section, the second pattern includes the first pattern.
Intelligent uplink resource release control in a mobile station
A mobile station for transferring delay-sensitive data to a wireless communications network is provided with an uplink resource release controller that selectively inhibits release of an uplink resource in order to meet requirements of a delay-sensitive data application, such as a VoIP or streaming application. In one embodiment, the uplink resource release controller causes dummy blocks to be written to a data buffer to prevent initiation of a countdown process. By intelligently controlling resource release, delay-sensitive data may be transmitted in a more reliable fashion, thereby increasing application performance.
Backhaul link for distributed antenna system
A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules.
Method and apparatus for determining control channel search space
Embodiments of the present disclosure provide a method for determining a control channel search space. The method includes: determining numbers of EPDCCH sets used for enhanced physical downlink control channel EPDCCH transmission; determining, according to the numbers of the EPDCCH sets, location offsets of search spaces corresponding to the EPDCCH sets; and determining, according to the location offsets of the search spaces corresponding to the EPDCCH sets, the search spaces corresponding to the EPDCCH sets. By grouping and numbering time frequency resources of EPDCCHs, and determining different location offsets for different EPDCCH search spaces according to the numbers and different cell identities or UE identifiers, a probability of control channel search space conflict can be reduced. Thereby, time frequency resources of control channels can be maximized in a case of multiple users, and communication efficiency can be improved.
Method and apparatus for sending control channel information based on multi-sector cell networking
The present invention discloses a method and an apparatus for sending control channel information based on multi-sector cell networking. The method includes: obtaining, according to an uplink signal sent by a user equipment, uplink signal strength information corresponding to each sector, where each sector uses a same cell identification, and the uplink signal strength information is used to indicate a level corresponding uplink signal strength; selecting a working sector for the user equipment from the sectors according to the uplink signal strength information corresponding to each sector; and sending control channel information to the user equipment through the working sector, and not skipping sending control channel information to the user equipment through the sectors except the working sector.
Method and apparatus for allocating control channel candidates
The present invention provides a method and an apparatus for allocating control channel candidates, which relate to the communications field, and can allocate control channel candidates at different aggregation levels to K ePDCCH sets and reduce complexity of blind detection performed by a UE. The method includes: determining K sets for transmitting a control channel, where each set in the K sets includes at least one physical resource block pair; and allocating control channel candidates at each aggregation level to at least one set in the K sets according to at least one of aggregation levels supported by the control channel to be transmitted, the number of control channel candidates corresponding to each aggregation level, the K sets for transmitting the control channel, and types of the sets.
Method for enabling terminal to transmit ACK/NACK response in wireless communication system and apparatus therefor
The present application relates to a method for enabling a terminal to transmit an uplink ACK/NACK (Acknowledgement/negative ACK) response to a base station in a time-division multiplexing wireless communication system. Specifically, the method includes the steps of: receiving a setting for an uplink-downlink subframe from the base station; receiving downlink control information and downlink data information scheduled through the downlink control information, from the base station based on the setting for the uplink-downlink subframe; and transmitting an ACK/NACK response for the downlink data information to the base station, wherein the subframe to which the ACK/NACK response is transmitted is determined according to whether an ending symbol of the downlink control information is after a particular symbol of the sub-frame for receiving the downlink control information.
Mobile station apparatus and base station apparatus
An ASN encoder of a mobile station apparatus generates transmission and reception capability information including information relating to one or a plurality of component carriers to be used for communication with a base station apparatus. A transmission and reception apparatus transmits the transmission and reception capability information to the base station apparatus. A controller controls the communication with the base station apparatus, using the one or the plurality of component carriers assigned by the base station apparatus based on the transmission and reception capability information.
Method, device and system for processing a message
The embodiment of the present disclosure provided a method, device, and system for processing a message. The method for processing a message comprises obtaining a traffic type of a service data packet, sending the message or a data packet that carries the traffic type to a radio network controller, where the radio network controller obtains the traffic type and performs scheduling processing on the service data packet according to a quality of service requirement corresponding to the traffic type. The present disclosure can realize performing resource allocation and scheduling processing on the applications corresponding to the service data packet based on the traffic type. Compared to resource allocation and scheduling processing based on the traffic type in the prior art, the granularity of classification of the present disclosure is more refined, and can realize more refined resource allocation and scheduling processing, and can effectively improve the efficiency of scheduling processing.
Method and apparatus for selecting a positioning solution
Embodiments of the invention provide a method for selecting a positioning solution. The method includes receiving information of a channel allocated to a terminal, and selecting, based on the information of the channel, a solution from a set of positioning solutions for the terminal. The method of the present invention is robust and automatically adapts itself to different traffic scenarios.
Verifying generic broadcast of location assistance data
Various techniques are provided for Location Services (LCS) Assistance Data broadcast, for example for implementation in LTE and LTE-A systems. The embodiments described herein may use the LPP/LPPe positioning protocol, by making use of existing unsolicited Provide Assistance Data (PAD) messages. Embodiments avoid the need to define and implement a separate broadcast Assistance Data protocol. Additional exemplary embodiments for scheduling and verifying of the broadcast Assistance Data messages are described herein.
Synchronization establishment method
Provided is a synchronization establishment method capable of reducing the time required to establish synchronization in a slave station without putting an unnecessary load on a master station. In the synchronization establishment method, a one-second cycle of a message is divided into 100 time slots including slot “0” to slot “99”; ten slots including slot “90” to slot “99” as some of the slots are allocated to a fast synchronization establishment mode; and, in the fast synchronization establishment mode, messages such as Sync2, Delay_Req, and Delay_Resp are transmitted and received between the master station and the slave station so that the slave station establishes synchronization.
Uplink multi-user multiple input multiple output beamforming
A first communication device receives respective beamforming training packets as part of a procedure for developing respective transmit beamforming matrices for use by a plurality of second communication devices during a subsequent UL MU transmission. The first communication device generates respective beamforming feedback information based on reception of the respective beamforming training packets, and transmits the respective beamforming feedback information to the plurality of second communication devices. The first communication device transmits a synchronization signal to a group of multiple second communication devices to the group to simultaneously transmit to the first communication device at a particular time as part of the UL MU transmission, and receives simultaneous transmissions from the group responsive to the synchronization signal, the simultaneous transmissions having been beamformed by second communication devices in the group using transmit beamforming matrices.
Radio communication system and communication control method
A radio communication system includes a user device, base stations, and a communication control device. The communication control device generates and reports, to the user device, selection information that is used to select base stations with which the user device should maintain synchronization. The user device selects, based on the selection information, base stations with which the user device should maintain synchronization. The user device reports, to the communication control device, identifiers of the selected base stations and received levels of radio waves transmitted from the base stations corresponding to the identifiers. The user device maintains synchronization with each of the selected base stations.
Method and apparatus for transmitting and receiving signals in wireless communication system
In a method for a transmission point to transmit a downlink signal to a user equipment in a wireless communication system, the method includes determining transmission power of first resource elements for data transmission of an OFDM symbol which does not include a Cell specific Reference Signal (CRS) and transmission power of second resource elements for data transmission of an OFDM symbol which includes the CRS, wherein a first parameter related to the determination of the transmission power of the first resource elements and a second parameter related to the determination of the transmission power of the second resource elements are determined by one of a first configuration and a second configuration, and wherein the first configuration and the second configuration are selectively applied according to one or more of a subframe and a transmission mode.
Method and apparatus for determining access control parameters for devices in a wireless communications network
A wireless communication system includes a first access point, and at least one first station in communication with the first access point. The first access point controls access parameters for communications with a first station. The access parameters may include Enhanced Distributed Channel Access parameters such as a minimum or maximum contention window parameter, an arbitration interframe spacing parameter, or a transmit opportunity limit parameter. The access parameters also may include a channel bandwidth parameter, a transmit power parameter, or a data rate parameter such as a modulation and coding scheme parameter. Where the system includes an additional access point, and at least one additional station in communication with the additional access point, the first access point and the additional access point control access parameters to avoid interference between the first access point and the additional access point. A central controller may coordinate between the first and additional access points.
Packet delay optimization in the uplink of a multi-hop cooperative relay-enabled wireless network
A method for communication in a wireless network is provided. The method includes a relay node receiving a data packet and determining whether to transmit the packet without performing error checking.
Determination of device body location
In some implementations, a mobile device can analyze motion sensor data and proximity sensor data during a voice call to determine whether the mobile device is on a stationary object or worn on a user's body (e.g., in the lap or pocket of a user of the mobile device). The mobile device can adjust the transmit power level of the telephony transceiver during the voice call based on the determination.
Apparatus and method for controlling communication module
A method of controlling a communication module by an electronic device is provided. The method includes receiving, by a second processor, a specified signal from a first processor informing that the first processor enters an inactive state from an active state, by a second processor, and controlling, by the second processor, a Wireless Fidelity (WiFi) communication function in response to the specified signal. According to an operation state of the first processor, that is, an inactive state such as a sleep state or a power off state, or an active state, a subject which processes WiFi communication is changed. Accordingly, it is possible to efficiently and continuously monitor WiFi communication data and process the WiFi communication data on an accurate period.
System and method for providing power saving mode enhancements in a network environment
A method is provided in one example embodiment and may include determining that a periodic timer for a user equipment (UE) is about to expire; communicating to an application service, prior to expiration of the periodic timer for the UE, an indication associated with an availability of the UE to receive data from the application service; and communicating the data from the application service to the UE upon receiving the indication. In some cases, the method can include registering, by the application service, to receive the indication from a Mobility Management Entity (MME) or a serving General Packet Radio Service (GPRS) support node (SGSN), wherein the registering is performed via a service capability exposure function (SCEF) in communication with the MME or the SGSN and the application service.
Method, device, and system for regulating power consumption
A method, device and system for regulating power consumption are provided in the embodiments of the present invention. A method for regulating power consumption includes: obtaining, by a base station, an application point and a configuration parameter; sending, by the base station, an indication message to a terminal according to the application point and configuration parameter; regulating, by the base station, the power consumption of the base station by using the configuration parameter at the application point; the configuration parameter comprises cell antenna information or system bandwidth information; the indication message instructs the terminal to use the configuration parameter at the application point. Under the condition that user's normal communication is remained, the number of cell antennas or the cell bandwidth is dynamically changed. This reduces the power consumption of the network device.
System, apparatus, and method to enable domain selection in a multimode device
Certain aspects of the present disclosure propose a method for domain selection in a multimode UE. The domain selection method may be used to select domains for short message service (SMS) and/or voice service when the UE has camped on a packet switched (PS) network such as LTE. The proposed domain selection method may take into account UE capabilities, home operator preferences, visited operator preferences, visited network capabilities, and user settings.
Resolving identification code ambiguities in wireless access networks
Systems and methods for resolving identification code ambiguities in wireless access networks are described. In some embodiments, the systems and methods access an identification code associated with a cell in a wireless access network that is detected by a mobile device, determine a probability score for candidate cells that are assigned the identification code in the wireless access network, the probability score based on a likelihood that a candidate cell is a cell in the wireless access network associated with the identification code detected by the mobile device, and select one of the candidate cells as an origination cell of the identification code detected by the mobile device based on the determined probability scores.
Discovery method and device in a wireless communication system
An embodiment of the present invention entails a method in which discovery is effected by a first device supporting a WiFi direct service, the method comprising the steps of: scanning usable channels; switching channel to a first channel; and effecting a procedure relating to probe sending and receiving, together with a second device on the first channel. Here, the first channel is determined from either a time stamp or the scanning result.
Non-invasive differentiated wireless transmission detection
A non-intrusive method of determining whether a mobile device is transmitting through a Wi-Fi router or a cellular network is described. The method includes monitoring messages relating to a wireless network. A subset of the messages including Create Session Request, and IMSI/MDN are received and later a subset of the messages including Delete Session Request, and the IMSI/MDN are received. The combination of the sets of received messages is used to determine whether the mobile device is transmitting through the Wi-Fi router or the cellular network, specifically based on the Create Session Request and the Delete Session Request.
Calculation methods and calculation devices
According to an embodiment, a calculation method is for performing calculation on a wireless network including multiple terminals and multiple base stations. The method includes calculating a first probability with which a first base station and a second terminal are capable of connection with (h−1) hops, h being a finite integer equal to or larger than 2, and a first terminal and the second terminal are capable of direct connection with each other, by using a probability with which the first terminal and the second terminal are capable of direct connection with each other and a probability with which the second terminal and the first base station are capable of direct connection with each other; and calculating a second probability with which the first terminal is capable of connection with at least one of the base stations with h hops by using the first probability.
Data packet sending method and radio access network device
Embodiments of the present invention provide a data packet sending method and a radio access network device. The method includes: receiving, by a radio access network device, a data packet sent by a core network device; acquiring duration that the data packet is cached on the radio access network device; and if the duration that the data packet is cached is greater than or equal to a preset wait duration threshold, transiting a user equipment that is in a CELL_FACH state and is corresponding to the data packet to a CELL_DCH state, and sending the data packet to the user equipment that is transited to the CELL_DCH state. The technical solutions in the present invention enable the UE to acquire a data packet in time to normally carry out a service when congestion occurs on a FACH, thereby improving the degree of user experience.
HetNet mobility management
A wireless communication system is presented for robust mobility management in a HetNet communication system. A source cell can prepare a macro cell and a target small cell as handover candidates during handover decision making and/or preparation. The mobile device is informed about the prepared macro cell and target small cell using radio resource control (RRC) messaging. After receiving a handover command or detecting radio frequency (RF) loss, the mobile device can try to connect with the target small cell. If the mobile device is unable to connect to the target small cell, the UE can fall back and connect to the macro cell.
Radio communication apparatus, radio communication system and radio communication method
A radio communication apparatus including: an antenna configured to receive a frame including reference signals and including other signals corresponding to radio resources to which channels are mapped, and a processor configured to acquire degree of usage of the radio resource, to calculate a reception quality of the reference signals, and to adjust the reception quality in accordance with the degree.
Communication control method, master base station, secondary base station, and user terminal
A communication control method according to a first aspect is a method in a mobile communication system for supporting dual connectivity communication using a master base station for establishing RRC connection with a user terminal and a secondary base station for providing additional radio resources to the user terminal. The communication control method comprises: an inter-master base station handover procedure for performing handover of the user terminal from a source master base station to a target master base station without changing the secondary base station.
Classifying failure reports as either current or stale for mobility robustness optimization adjustments
The present disclosure relates to identifying stale failure reports in a cellular communications network. In one embodiment, a node in a cellular communications network receives a failure report associated with a connection failure for a user equipment and determines when the connection failure occurred with respect to a most recent mobility adjustment made by the node. If the connection failure occurred before the most recent mobility adjustment made by the node, the node classifies the failure report as a stale failure report. In one embodiment, if the failure report is classified as a stale failure report, the node discards the failure. In another embodiment, if the failure report is classified as a stale failure report, the node considers the failure report with reduced relevance for a next iteration of a process to determine whether new mobility adjustments are desired.
System and method for providing handover to an ambiguous small cell access point in a network environment
An example method is provided in one example embodiment and includes receiving a request to relocate a user equipment (UE) from a source macro radio to an ambiguous small cell access point (AP), wherein the request includes a target cell identity (ID) encoded with a source macro cell identifier for the source macro radio and a target sub-carrier identifier for the ambiguous small cell AP; determining potential target small cell APs for relocation of the first UE using the using the first target cell ID, wherein each of the potential target small cell APs are within a coverage area of the source macro radio and operate using the target sub-carrier identifier; and preparing, for each of the potential target small cell APs, a common channel to receive relocation of the first UE. The first UE can relocate to a particular target small cell access point using the common channel.
Node and method for carrier aggregation compatibility reporting of a wireless device
Example embodiments presented herein are directed towards a base station (401), and corresponding method therein, for obtaining a carrier aggregation compatibility report comprising a subset of a total number of frequency band and/or frequency band combinations supported by a wireless device. Example embodiments presented herein are also directed towards a wireless device (501), and corresponding method therein, for providing a carrier aggregation compatibility report comprising a subset of the total number of frequency bands and/or frequency band combinations supported by the wireless device.
Methods for accessing to base station that uses SACK mechanism and apparatuses using the same
A method for mobile station accessing to a base station in a wireless communication system that uses selective acknowledgement mechanism, comprising: transmitting, an access probe from the mobile station to the base station; receiving, a message from the base station, wherein the message indicates parts of the plurality of data frames are not decoded by the base station; passing, an instruction from a MAC layer to a PHY layer of the mobile station, wherein the instruction is used to send a selective acknowledgement header; sending, the parts of data frames that are not decoded by the base station from the MAC layer to the PHY layer according to the message; and retransmitting the parts of the plurality of data frames.
Scalable earliest arrival path (EAP) algorithm for simultaneous diversity transmissions of base station signals
Disclosed are techniques for detecting earliest arriving downlink signal peaks over all transmit diversity paths received at a same point in time. In an aspect, a wireless mobile device receives a wireless signal comprised of signals transmitted from a plurality of cells each providing a plurality of transmit diversity paths, calculates a channel energy response (CER) vector for each of the plurality of transmit diversity paths of each of the plurality of cells, constructs an overlaid CER vector for each of the plurality of cells, wherein the overlaid CER vector for a cell comprises an overlay of each CER vector of the plurality of transmit diversity paths of the cell, and determines an earliest arrival path of each of the plurality of cells based on the overlaid CER vector for that cell.
Plane wave generation within a small volume of space for evaluation of wireless devices
Small anechoic chambers for evaluating a wireless device under test (DUT) are characterized by a set of antennas to which a test signal is applied and for which excitation coefficients are applied such that the test signal approximates a single plane wave or a preselected superposition of plane waves in the near field of the antennas. The test-equipment antennas in the chamber may be as close as one wavelength from the boundary of a test zone in which the DUT is disposed. Hence, the test zone can be in the near field of the test-equipment antennas and the test zone can be less than a wavelength from the chamber walls. Consequently, it is possible to perform tests in a small anechoic chamber that previously required a large anechoic chamber, e.g., advanced spatial channel-model tests and antenna-pattern measurements.
Method for establishing correspondence between sector of base station and antenna, base station, and antenna
The present disclosure provides a method for establishing a correspondence between a sector of a base station and an antenna, a base station, and an antenna. The base station (or the antenna) generates a modulation signal, and a radio frequency port corresponding to the antenna (or the base station) can receive the modulation signal. Then, the base station determines that there is a correspondence between a radio frequency port that is on the base station side and that sends the modulation signal and a radio frequency port that is on the antenna side and that receives the modulation signal. Therefore, the base station establishes a correspondence between a sector and the antenna, which is highly efficient and highly accurate in comparison with a manual recording manner.
Storing a value of a counter for a wireless local area network
Embodiments described herein relate generally to a communication between an element manager and a wireless local area network (WLAN) access point (AP). The WLAN AP may be configured with one or more counters. The one or more counters may measure events, such as data transmission and/or reception at the WLAN AP or a carrier sense multiple access with collision avoidance (CSMA/CA) procedure by the WLAN AP. The element manager may be configured to read one or more of these counters and compute one or more values based on the values read from the one or more counters. The element manager may be configured to communicate the one or more computed values to a network manager. Other embodiments may be described and/or claimed.
Methods for measuring and transmitting downlink signals and apparatuses therefor
A method in which a User Equipment (UE) measures a downlink signal in a wireless communication system is disclosed. The method includes receiving information about a Beam Direction Pattern (BDP) of the downlink signal and measuring the downlink signal based on the information about the BDP. The information about the BDP includes an index of a subframe in which the downlink signal is to be transmitted using a specific BDP and includes an identifier (ID) of the specific BDP. The BDP of the downlink signal is switched according to the subframe index based on the information about the BDP.
Systems and methods to transmit configuration change messages between an access point and a station
A particular method includes transmitting a frame from a station to an access point. The frame includes a beacon sequence number related to a configuration of the access point. The method also includes, in response to transmitting the frame, receiving an update frame from the access point. The update frame indicates at least one change in the configuration of the access point.
Method of optimizing the quality of a cellular network
A method of optimizing the quality of a cellular network which includes at least one iteration, each iteration including a step of estimating at least one local performance indicator at a plurality of points of the cellular network as a function of parameters of the cellular network; a step of estimating a global quality level of the cellular network for the parameters on the basis of a local quality level as estimated at each of the points and for the parameters, the local quality level depending exclusively on the local performance indicators, the parameters being modified so long as the global quality level can be improved; and a step of storing the parameters corresponding to the global quality level.
Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
In a radio network having a plurality of first users on channel (FUOCs) and one or more second users on channel (SUOCs), a method and apparatus for a SUOC to select a channel to co-occupy based in part upon the expected impact on the FUOC. The FUOC collects signal parameters associated with the FUOC, such as actual rate, bandwidth, received signal power, and noise power, and uses the signal parameters to calculate the expected impact. In some embodiments, the expected impact is proportional to the ratio of the FUOC's actual rate and the FUOC's possible code rate.
Spectrum sharing system
A Spectrum Sharing System (SSS) is a system and method which allows Radio Frequency (RF) wireless mobile and fixed devices to operate in the 3100-3650 MHz frequency band while simultaneously protecting radar operations from interference. The SSS includes equipment which utilizes spectrum sensing, GPS data, and database technology to provide a solution by which mobile and fixed wireless devices can be allowed use of the 3100-3650 MHz frequency band and share same spectrum with radar systems. The spectrum sharing action is only possible when radar emissions are not detected within the licensed service in the 3100-3650 MHz spectrum, and SSS has determined that geographical area of interest is not occupied by radar systems.
Big data analytics for telecom fraud detection
Techniques of detecting telecom fraud involve applying a combination of real-time data analysis and risk models typically used in authentication applications to phone call metadata that is streamed to a database server on a continual basis to derive phone usage patterns as the database server receives the phone usage data. The database server then compares the derived phone usage patterns to patterns of fraudulent phone usage in order to detect SIM box or SIM cloning fraud in the streamed data. A comparison result that indicates the likelihood of such fraud in a vast set of phone calls may take the form of a risk score derived using risk models typically found in authentication applications.
Apparatuses for authenticating a wireless connection using time related user actions
In some embodiments, a wireless pairing method involves a touchscreen on a wireless host device combined with a switch on a wireless stylus device. The wireless pairing method uses the time-coincidence of a touch on the host device screen with the detection of a tip switch press on the stylus device as a mode of out-of-band communication to authenticate a pairing of the devices. In such embodiments, a user presses a tip portion of the stylus device against a pairing spot on the host device surface; the wireless devices then form a bonded pair if the touch and/or release of the tip portion of the stylus device with respect to the host device surface are within a pre-determined time co-incidence window of the detection by the host device of that touch and/or release of the tip portion of the stylus device.
System for communicating with a single mobile communications device having multiple MS-ISDN identifiers
A communication system (10) comprising a first communications device (12) operable by way of a first telecommunications network (16a); a second communications device (14) operable by way of the first telecommunications network (16a) and at least one additional telecommunications network (16b), each telecommunication network (16) issuing a unique MS-ISDN to the second communications device (14) to enable such operation; and a communications facilitator (20) associated with the first telecommunications network (16a) where, when a communication from the first communications device (12) to the second communications device (14) is received by the communications facilitator (20), the communications facilitator assesses at least one characteristic of the second communications device (14) and/or MS-ISDNs allocated to the second communications device (14) to identify a communication link and relays the communication to the second communications device (14) by way of the additional telecommunications network (16) that allocated the MS-ISDN identified as the communication link.
Content delivery system and method
A method and system for delivering content to a plurality of devices is provided. In one embodiment, the method may be for delivering content elements of one or more presentations to a device configured to communicate via a wireless data network, wherein the content elements include static content elements, dynamic content elements, and on-demand content elements. The method may comprise delivering to the device, data, such as compilation data, of the content elements included in the one or more presentations; delivering the static content elements to the device via the wireless data network during one or more time periods of increased available wireless data network capacity; delivering the dynamic content elements to the device via the wireless data network substantially according to a schedule; and delivering the on-demand content elements to the device via the wireless data network substantially immediately after a user request for an on-demand content element.
Querying data from devices in an ad-hoc network
A mobile data network supports making subscriber data addressable as devices in a mobile data network. Each data chunk is assigned a device address in the mobile data network. The data chunk can then be addressed as a device in the mobile data network. Data chunks corresponding to a subscriber are distributed across multiple devices in the mobile data network, which may include subscriber devices, network components in the mobile data network, and specialized devices provided by storage providers. The mobile data network is queried to determine related devices. An ad-hoc network of the related devices is formed. A data query by one of the related devices is sent to the related devices in the ad-hoc network to determine whether the data query can be satisfied by one of the related devices. If not, the data query is sent via normal channels in the mobile data network.
Electronic subscriber identity module selection
Embodiments are described for identifying and accessing an electronic subscriber identity module (eSIM) and associated content of the eSIM in a multiple eSIM configuration. An embedded Universal Integrated Circuit Card (eUICC) can include multiple eSIMs, where each eSIM can include its own file structures and applications. Some embodiments include a processor of a mobile device transmitting a special command to the eUICC, including an identification that uniquely identifies an eSIM in the eUICC. After selecting the eSIM, the processor can access file structures and applications of the selected eSIM. The processor can then use existing commands to access content in the selected eSIM. The special command can direct the eUICC to activate or deactivate content associated with the selected eSIM. Other embodiments include an eUICC platform operating system interacting with eSIMs associated with logical channels to facilitate identification and access to file structures and applications of the eSIMs.
A pairing apparatus includes first and second wireless devices, each of which has a docking mechanism for docking the wireless devices with each other, wherein each of the wireless devices includes a pairing request detecting unit to detect a request for pairing, a docking detecting unit to detect docking of the wireless devices, and a pairing setting unit to perform a pairing setting process for pairing the wireless devices, in response to the request for pairing, wherein a check is made as to whether the wireless devices are in a docked state at both a time of the pressing of the pairing button and a time of the releasing of the pairing button, and the request for pairing is made from one of the wireless devices to the other upon a result of the check indicating that the wireless devices are in the docked state at both of the times.
Information processing device, information processing method and program
Disconnection from a network is easily recognized.A plurality of information processing devices connected over a network is disclosed. The network is built through wireless communication of the plurality of information processing devices. The plurality of information processing devices includes at least a first information processing device and a second information processing device. A detection unit of the first information processing device is configured to detect the second information processing device that is disconnected from the network. A control unit of the first information processing device is configured to output first information about the detected second information processing device as disconnection information.
Multi-modality communication with interceptive conversion
Disclosed herein are example embodiments for multi-modality communication with interceptive conversion. Described embodiments may include, but are not limited to, receiving from a first communication device data corresponding to a first communication modality, with the data corresponding to the first communication modality associated with a communication flow between the first communication device and a second communication device, and with the communication flow comprising a multi-modality communication in which a first user is to interact with the first communication device using a first communication modality and a second user is to interact with the second communication device using a second communication modality. Data corresponding to the first communication modality may be converted to data corresponding to the second communication modality and transmitted to the second communication device. A notification of at least one aspect of a conversion applicable to the communication flow may be transmitted to the first communication device.
Preventing access of calls to unauthorized users and automating call transfers
A first device may be unable to access a line hosting a call that has been placed on hold by a second device when the first device and second device are located remotely from each other. A server device may manage the status of the line to prevent the first device from accessing the line when the line is currently in control by the second device. When the first device and second device communicate via NFC, the line may be automatically released, so that the control of the line and of the call may be automatically transferred to the first device.
A method, a device, and a non-transitory storage medium provide to determine whether a user of the user device is being transported by a vehicle; determine whether any of multiple events pertaining to a message application is detected in response to a determination that the user is being transported by the vehicle; obtain input characteristic data attributed to the user in response to a determination that any of the multiple events is detected; determine whether the user is a driver of the vehicle based on the input characteristic data; and block receipt of an inbound message and a creation of an outbound message in response to a determination that the user is the driver of the vehicle.
Filtered in-box for voicemail, E-mail, pages, web-based information, and faxes
The present invention is directed to a system for displaying, organizing, and prioritizing the incoming information on a wireless device. Using the present invention the wireless device can display the number of voice mails, e-mails, pages, and Internet information alerts that have been received by the wireless device during a specified time period. The invention also allows the incoming information to be separated by any number of user-specified criteria such as the originating sender, or divided by work related and personal messages. The present invention allows the wireless device user to see at a glance what kind of information has been received and is being stored on the wireless device.
Push notification middleware
Embodiments relate to push notification middleware. A system includes a computer processor and a mobile platform server executable by the computer processor. The mobile platform server includes a notification service and a registry. The notification service is configured to receive a notification trigger including a payload to deliver to an endpoint and access the registry to determine a notification transport protocol associated with the endpoint. The notification service is further configured to select a channel plugin associated with the notification transport protocol to establish a notification channel with the endpoint and send the payload to the endpoint on the notification channel.
Access network group paging for end devices
A method, a device, and a non-transitory storage medium provide to generate a paging message that includes a group identifier that identifies a group of end devices to which a paging pertains; broadcast the paging message in response to the generation; start a timer in response to the broadcast of the paging message; generate, in response to a first time interval calculated by the timer, a first message that includes at least one of a sub-group identifier, which identifies a sub-group of the end devices of the group to which the paging pertains, or an individual identifier, which identifies one of the end devices of the group to which the paging pertains, wherein the first message is generated based on a radio access-radio network temporary identifier (RA-RNTI) value; and broadcast the first message in response to the generation of the first message.
Apparatus for providing urgent alarm service through broadcast system and method therefor
The present invention relates to a method for receiving urgent alarm contents through a broadcast system. According to an embodiment of the present invention, a method for receiving urgent alarm contents through a broadcast system includes the steps of: receiving a broadcast signal; parsing an urgent alarm table contained in the broadcast signal, the urgent alarm table containing an urgent alarm message and an urgent alarm contents transmission structure descriptor for signaling the information of the urgent alarm contents concerning the urgent alarm message, and the urgent alarm contents transmission structure descriptor containing the IP address of an IP datagram for transmitting the urgent alarm contents; receiving the IP datagram of the IP address; and decoding the IP datagram so as to reproduce the urgent alarm contents.
Management of dynamic events and moving objects
An embodiment of the invention includes a system, method and computer program product for managing dynamic events. The embodiment may include managing, by a first subsystem, an event in a first region of the plurality of geographic regions using a first event agent. The embodiment may include determining whether the event is predicted to spread from the first region to a second region. The embodiment may include generating a first dynamic event agent to monitor the event as a dynamic event based on predicting the event may spread from the first region to the second region. The first dynamic event agent may receive information relating to the dynamic event, update a status of the dynamic event based on the received information, and transmit the received information. The embodiment may include generating, by a second subsystem, a second dynamic event agent for handling the dynamic event in the second region.
Tracking of an object of interest based on wireless location estimates combined with aerial or satellite imagery
An improved method of tracking an object of interest. The tracking that is enabled by the disclosed tracking engine is based on location estimation of a wireless terminal combined with aerial or satellite imagery of an object of interest, in which a relationship has been determined to exist between the wireless terminal and the object of interest. In some tracking scenarios, a wireless telecommunications network can be used to direct an image-based surveillance system where to start observing, as an object of interest heads away from a heavily populated area or other area with satisfactory wireless coverage. In some other tracking scenarios, the trajectory of the object as derived from the image data enables the tracking engine to target a specific portion of the wireless network to utilize in generating the location estimates, thereby reducing the resource utilization of the wireless network and tracking engine.
Sharing location information among devices
Methods, systems, apparatus, and computer program products that include, on a first device executing a first instance of a location application, receiving an indication to begin sharing data describing a path traveled by the first device, receiving location data describing the path traveled by the first device, the location data received from a location system of the first device, and the location data including a plurality of locations of the first device, and transmitting the location data in a form usable to enable a user interface of a second instance of a location application executing on a second device to indicate the path traveled by the first device.
System for memorizing object location and method thereof
A system for memorizing object location, for detecting an object storage position, includes: a wireless sensor module disposed in an interior space to generate a wireless sensor signal; a mobile device having an application program to start and initialize the wireless sensor module, the application program having a function of using the wireless sensor signal to calculate out a positioning data, and producing an object position integration information; and a cloud storage server connected to the mobile device via a communication link to receive the object position integration information and store the information in an object position memorizing database.
Systems and methods for locating a tracking device
The principles described herein provide methods and systems for locating a tracking device. In particular, one disclosed method includes associating a user with a tracking device, receiving an indication that the tracking device is lost, setting a flag indicating that the tracking device is lost, receiving a location within a proximity of the tracking device from one of a plurality of mobile devices associated with a community of users, and providing the location to the user.
Relative forward link calibration estimation
Techniques for determining a relative Time Calibration (dTcal) value for a mobile device model are disclosed. An example of an apparatus according to the disclosure includes a memory, a receiver configured to receive measurements and a mobile device model information from mobile devices disposed in geographic areas, a processor configured to determine a baseline mobile device model and other mobile devices models based on the measurements, calculate a baseline measurement value based on the measurement values that correspond to the baseline mobile device model, determine difference values based on the baseline measurement value and the other mobile device model measurement values, determine a model specific dTcal value based on the difference values for at least one of the other mobile device models, and store the model specific dTcal value in the memory.
Delivery confirmation using overlapping geo-fences
Disclosed are approaches for using overlapping geo-fences to confirm delivery of a shipment. A first client computing device and a second client computing device may be in data communication with a server computing device. The server computing device may receive a delivery notification from the first client computing device. The server computing device may receive from the first client computing device a first position and a second position from the second client computing device. The server computing device may then determine that the second position is within a predefined distance of the first position or vice versa. Finally, the server computing device may generate a delivery confirmation in response to a first determination that the second position is within a predefined distance of the first position and a second determination that the first position is within a predefined distance of the second position.
Peripheral apparatus, server apparatus and method for determining location of portable apparatus
A peripheral device for determining a location of at least one portable device is provided. The peripheral device includes a communication module configured to communicate with at least one portable device and a server device, and a control module configured to obtain a broadcast signal broadcast from the at least one portable device and provide location-related information to the server device configured to determine a location of the portable device, the location-related information including a time at which the broadcast signal is obtained and location information of the peripheral device.
Interpersonal communication and interactive information system
An interpersonal communication and an interactive information system, where a user can access a wireless local area network connected to a cloud computing service from any compatible mobile device and obtain information specific to the user's location and communicate with other mobile devices in the user's location through the wireless local area network.
Managing sessions for direct device to device communications
Systems, methods, and apparatuses can involve receiving, from a network node, a radio resource control (RRC) configuration message that includes configuration information for a first user equipment (UE) for an inter-device session (IDS) between the first UE and a second UE, the UE1 configuration information including an inter-device session (IDS) radio network identifier.
Provisioning automotive SIM cards without removal from vehicle
A system and method are provided for re-provisioning a telematics unit of a telematics-equipped vehicle for wireless services. The re-provisioning process includes: connecting a computing device to an on-board diagnostics interface of the telematics-equipped vehicle; accessing a subscriber identification card of the telematics unit via the on-board diagnostics interface; requesting subscription information from a subscriber credentials server via a network connection; receiving the subscription information; and reprogramming the subscriber identification card of the telematics unit for wireless services based on the received subscription information.
Networked speaker system with follow me
In a multi-speaker audio system for, e.g., a home entertainment system or other entertainment system, each networked-speaker (wired or wireless) is activated or deactivated as appropriate such that audio play follows a user as the user moves around the home.
Audio interface device
A wireless interface device for at least one of wireless transmission from an electric analog audio device or wireless reception at an electric analog audio device of an audio signal, comprises an audio connector jack plug or jack socket in communication with a system that is at least one of a wireless internet system or a WLAN-enabled system and connectable to at least one of an audio connector jack plug of the electric analog audio device, or an audio connector jack socket of the electric analog audio device.
Hearing aid fitting procedure and processing based on subjective space representation
A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.
Method of superimposing spatial auditory cues on externally picked-up microphone signals
The present disclosure relates in a first aspect to a method of superimposing spatial auditory cues to an externally picked-up sound signal in a hearing instrument. The method comprises steps of a generating an external microphone signal by an external microphone arrangement and transmitting the external microphone signal to a wireless receiver of a first hearing instrument via a first wireless communication link. Further steps of the methodology comprise determining response characteristics of a first spatial synthesis filter by correlating the external microphone signal and a first hearing aid microphone signal of the first hearing instrument and filtering the external microphone signal by the first spatial synthesis filter to produce a first synthesized microphone signal comprising first spatial auditory cues.
Hearing assistance system with own voice detection
An example of an apparatus configured to be worn by a person who has an ear and an ear canal includes a first microphone adapted to be worn about the ear of the person, and a second microphone adapted to be worn at a different location than the first microphone. The apparatus includes a sound processor adapted to process signals from the first microphone to produce a processed sound signal, a receiver adapted to convert the processed sound signal into an audible signal to the wearer of the hearing assistance device, and a voice detector to detect the voice of the wearer. The voice detector includes an adaptive filter to receive signals from the first microphone and the second microphone.
Method and apparatus for suppressing transient sounds in hearing assistance devices
An audio system includes a transient suppression circuit that rectifies an input signal representing target sounds and transient sounds and produces a threshold envelope of the rectified input signal. The transient suppression circuit accumulates the difference between the rectified input signal and the threshold envelope, and normalizes the accumulated difference using the rectified input signal. A gain is calculated using this normalized accumulated difference and applied to the input signal to suppress the transient sounds without substantially affecting the target sounds.
Voice signal processing apparatus and voice signal processing method
A voice signal processing apparatus and a voice signal processing method are provided. A last sampling point of an mth original frequency-lowered signal frame is determined according to a phase reference sampling point number of the mth original frequency-lowered signal frame. Here, the phase reference sampling point number corresponds to a middle sampling point of an mth renovating frequency-lowered signal frame, and the last sampling point is phase-matched with a sampling point corresponding to the phase reference sampling point number in the mth original frequency-lowered signal frame. P consecutive sampling points starting from the last sampling point are applied as sampling points of an (m+1)th renovating frequency-lowered signal frame.
Wearable communication device
A wearable communication device includes an annular shell, a processing module, a first piezoelectric unit, and a driving unit. A cavity is formed at a part of the annular shell. The processing module processes communication data. The first piezoelectric unit is disposed in the cavity. The driving unit is used to receive the communication data and drive the first piezoelectric unit according to the communication data to make the first piezoelectric unit vibrate and trigger a corresponding audio signal. The wearable communication device can be wirelessly connected to an electronic device without physical wires to improve the convenience greatly.
Audio output control method and apparatus
An audio output control method and apparatus using a wired/wireless communication system is provided. An audio output control method of an audio output device connected to at least one other audio output device according to the present disclosure includes converting specific audio data to at least one modified audio signal designated to the respective audio output devices, playing at least one of the modified audio signals through a channel designated to the specific audio data, and transmitting a remaining of the modified audio signals to the at least one other audio output device, wherein the modified audio signals include at least one of sound sources and channel characteristics of the specific audio data.
Menu navigation method for user of audio headphones
A method of operating an audio system having first and second sources includes outputting a first audio signal from the first source on first and second speakers. In response to a listener input, the first audio signal and a second audio signal from the second source are output simultaneously on the first and second speakers. The first signal is output from each of the first and second speakers such that the first signal is perceived by a listener to originate from a first direction toward the listener. The second signal is output from each of the first and second speakers such that the second signal is perceived by the listener to originate from a second direction toward the listener. The second direction is offset at least ninety degrees from the first direction.
Creation of sub-sample delays in digital audio
A multi-channel audio system that can provide a variable sub-sample delay between two or more audio channels. In one embodiment, a variable timing clock generator generates multiple clock signals where each may have different phase, and the clock generator can vary the phase difference, in accordance with a sub-sample delay setting input. These clock signals are used by respective digital-to-analog converters (DACs) to convert the digital audio channels into analog form. In another embodiment, a variable delay block is added to an oversampling DAC, on a per channel basis. Other embodiments are also described and claimed.
Echo suppression comprising modeling of late reverberation components
An apparatus for computing filter coefficients for an adaptive filter is disclosed. The adaptive filter is used for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal. The apparatus has: an echo decay modeling means for modeling a decay behavior of an acoustic environment and for providing a corresponding echo decay parameter; and computing means for computing the filter coefficients of the adaptive filter on the basis of the echo decay parameter. A corresponding method has: providing echo decay parameters determined by means of an echo decay modeling means; and computing the filter coefficients of the adaptive filter on the basis of the echo decay parameters.
Analogue signal processing circuit for microphone
An analog signal processing circuit of a microphone includes a bias circuit including a first sub-circuit which receives a signal from the microphone to output a first signal and a second sub-circuit which receives a reference voltage to output a second signal. A fully differential circuit receives the first signal and the second signal to output a fully differential signal. Each of the first sub-circuit and the second sub-circuit includes a bias sub-circuit to apply a bias voltage.
Reduced microphone power-up latency
A method includes generating a command at a first microphone and sending the command from the first microphone to a second microphone. The command is sent to the second microphone via a bus that is coupled to the first microphone and to the second microphone.
Miniature loudspeaker module, method for enhancing frequency response thereof, and electronic device
The present invention discloses a miniature loudspeaker module, a method for enhancing frequency response of a miniature loudspeaker module, and an electronic device. The method comprises the steps of: additionally providing a passive driver in a cavity where an active driver of a miniature loudspeaker module is located, the passive driver and the active driver radiating together, wherein, after the passive driver is additionally provided in the miniature loudspeaker module, the amplitude of a vibrating diaphragm of the active driver shows a local dip on frequency bands below a resonant frequency point F0, and the lowest point of the local dip is corresponding to a frequency point Fb; and, perform, according to amplitude characteristics of the vibrating diaphragm of the active driver of the miniature loudspeaker module additionally provided with the passive driver, matching enhancement to an input signal of the active driver. In the technical solutions provided by the present invention, as the frequency response of the whole miniature loudspeaker module on low frequency bands below F0 is enhanced after a passive driver is additionally provided, and matching enhancement is further performed to signals according to the amplitude characteristics of the active driver, the frequency resource of the miniature loudspeaker module on the whole frequency band is enhanced greatly.
Low-power method and circuitry of determining headphone type and monitoring activity
A method includes comparing a voltage level detected by a detection circuit to a set of threshold voltages to determine a type of a headphone, determining the headphone to be a first type when a first signal travels through the first path to ground, and determining the headphone to be a second type when a second signal travels through the second path. The detection circuit includes a first path, a second path, and a bias capacitor. The headphone of the second type includes a plug that has a microphone connection.
Mobile terminal and method for controlling the same
A mobile terminal having a terminal body, an audio output module located in the terminal body, a power supply unit located in the terminal body, an earphone port formed on one side of the terminal body and a controller configured to, when a plug of earphone having a cable-type battery is inserted into the earphone port while performing an audio output function, to select an audio output path for at least one of the audio output module or the earphone inserted in the earphone port to output audio sound according to the audio output function and to charge the power supply unit by the cable-type battery is provided. Accordingly, an audio sound can be output through an audio output path selected according to the intention of the user who has inserted the earphone having the cable-type battery.
Headset amplification circuit with error voltage suppression
A headset driver circuit is described which comprises a connector interface. The connector interface comprises a first terminal, a second terminal and a third terminal for establishing respective electrical connections to a first speaker, a microphone and a common ground node of a headphone, earphone or headset, respectively. A first power amplifier is coupled to the first terminal to supply a first audio output signal to the first speaker of the headset. A first switch arrangement comprises a first ground switch is configured for selectively connecting and disconnecting the second terminal and a ground node of the headset driver circuit. The headset driver circuit further comprises a second ground switch configured for selectively connecting and disconnecting the third terminal and the ground node. The headset driver circuit also comprises a differential preamplifier, e.g. a microphone preamplifier, configured to generate a microphone output voltage where the differential preamplifier comprises a first signal input coupled to the second terminal and a second signal input coupled to the third terminal of the connector interface. An error suppression circuit is configured to sense or sample a noise or error voltage at the second terminal when ground connected or the third terminal when ground connected. The error suppression circuit is further configured to add the sensed or sampled noise or error voltage to a predetermined DC bias voltage and generate an error compensated DC bias voltage for the ungrounded one of the second and third terminals of the connector interface.
MEMS microphone device
A micro-electro-mechanical system (MEMS) microphone device is provided in the present disclosure. The MEMS microphone device includes a circuit board, an electromagnetic shielding cover mounted on the circuit board to define an accommodating space, electronic components received in the accommodating space and electrically connected to the circuit board, and a metal shielding member disposed between the electronic components and the electromagnetic shielding cover. The electromagnetic shielding cover has an inner surface and an outer surface; and at least one of the inner surface and the outer surface is provided with a first metal shielding layer. At least one of the electromagnetic shielding cover and the metal shielding member is electrically connected to the circuit board.
Loudspeaker system with improved sound
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
Sounding body and audio reproduction device using same, and mobile device
A sounding body is included in an audio reproduction device mounted on a mobile device. At least a part of the sounding body also serves as at least a part of one of an emblem, a horn section, and a mirror section of the mobile device.
Method and apparatus for transporting deterministic traffic in a gigabit passive optical network
A system and method are disclosed for transporting deterministic traffic in a gigabit passive optical network. A system that incorporates teachings of the present disclosure may include, for example, an Optical Line Termination (OLT) for exchanging data traffic in a Gigabit Passive Optical Network (GPON) having a controller programmed to generate a timeslot schedule for transport of a desired bandwidth of constant bit rate (CBR) data traffic by selecting one or more timeslots from periodic frame clusters operating according to a GPON Transmission Convergence (GTC) protocol. Additional embodiments are disclosed.
Method and apparatus for a deployable radio-frequency identification portal system
An apparatus for interrogating radio-frequency identification (RFID) tags within an enclosure. In an embodiment, the apparatus comprises an RFID module, a first assembly comprising a processor, a second assembly comprising an RFID radiator operatively coupled to the RFID module, and a connection element coupled to the first assembly and second assembly such that the second assembly is movable relative to the first assembly between a first configuration and second configuration. The processor may be configured to interrogate RFID tags via the RFID module and RFID radiator when the second assembly is in the second configuration, and not interrogate RFID tags when the second assembly is in the first configuration. In addition, both the first assembly and the second assembly may comprise attachment components configured to removably couple its respective assembly to one or more surfaces of an enclosure.
Signal transmitting apparatus, signal transmitting method, and system for transmitting and receiving signal
Disclosed are a signal transmitting method, a signal transmitting apparatus, and a system for transmitting and receiving a signal. The signal transmitting method comprises the steps of: discovering a companion device using a multicast mode; receiving and storing device type information from the discovered companion device; receiving an application uniform resource identifier (URI) and storing the application URI to correspond to the device type information; and identifying the device type information of the companion device selected by a user and transmitting to the selected companion device the application URI corresponding to the device type information.
Method for transceiving media files and device for transmitting/receiving using same
A method and apparatus for transmitting and receiving an MPEG-2 TS-based media file are provided. In the method of transmitting an MPEG2 Transport Stream (TS)-based media file, a Presentation Time Stamp (PTS) of a Presentation Unit (PU) is mapped to a Media Presentation Time (MPT) for synchronization with other media with respect to at least one program element forming a program included in the media file; and synchronization information including the mapped media presentation time is transmitted together with the media file, wherein the media presentation time is provided for a first PU in a segment of the transmitted media file.
Information processing apparatus, information processing system, recording medium, and method for transmission and reception of moving image data
An information processing apparatus includes a storage unit that stores first moving image data and a processor. The processor performs processes including monitoring a state of a communication network, generating second moving image data in accordance with a result of the monitoring by deleting a frame from the first moving image data in a manner such that a first frame rate indicating a first number of frames per unit time of the first moving image data becomes a second frame rate that is lower than the first frame rate, generating frame information related to the deleted frame, and transmitting the second moving image data and the frame information.
Methods and systems for generating and providing program guides and content
Systems and methods for identifying, assembling, and publishing content are described. A content item, such as a video, having a first time length, is identified by a system to be included in a program scheduled for a first time period. The video may be hosted on a third party system. A first span of time within the first program is allocated for the video, wherein the first span of time is longer than the first time length. The system determines, prior to or at the first time period, a time difference between a current length of the video and the first span of time. At least partly in response to determining that the video has a time length shorter than the first span of time, the system selects supplemental content based at least in part of the determined time difference to be streamed to user terminals over a data network within the first time period.
Apparatus, systems and methods for media mosaic management
Systems and methods for managing media mosaics are described. One embodiment provides a media mosaic management method in a media device. The method generates a mosaic filter based on a program selected from a first media mosaic. The mosaic filter is used to identify related programs for presentation in a second, customized media mosaic.
Information processing apparatus
The present invention relates to an information processing apparatus with improved operatability. With the information processing apparatus in which the user is capable of watching a television program and connecting to the Internet, the index panel 1 shows channel buttons 2 to be operated to select a desired program, a site button 71 to be operated to make an access to site A available on the Internet and a site button 72 to be operated to make an access to site B on the Internet. The present invention allows the user to watch a television program and can be applied to an information processing apparatus such as a personal computer, which can be connected to the Internet.
Systems and methods for identifying a source of media content based on a log of content identifiers
Systems and methods are described for identifying a content source of media content being transmitted to a viewer in situations when a specific media asset is being transmitted to the viewer from two different content sources nearly simultaneously. For example, if a certain movie is being broadcast at nearly the same time by two different channels, the system is able to identify the channel that the viewer is watching. The system performs the identification by obtaining content identifiers for two different channels, matching the content identifier based on time and then finding a divergent pair of content identifiers by iterating in reverse chronological order through the pairs and comparing the content identifiers. The system then compares the content identifiers to content identifiers in a log that stores content identifiers and timestamps for content that the viewer is consuming. The matching content identifier corresponds to the correct content source.
Automated allocation of media campaign assets to time and program in digital media delivery systems
A system for automatically managing the delivery of digital media assets allocates media assets to video programs so that audience members will receive the digital media assets when they view the video programs. An example is the automated allocation of sponsored videos to television programs. The system includes data stores, a digital media server, and a campaign manager system. The campaign manager system receives consumption data corresponding to a first campaign, along with an allocation value and other parameters, and uses that information to automatically allocate digital media assets to additional digital programming files and their corresponding video programs for a second campaign.
Method of processing non-real time service and broadcast receiver
A method of receiving and processing a broadcast signal including a Non-Real Time (NRT) service and a broadcast receiver are disclosed herein. A method of processing a Non-Real Time (NRT) service in a broadcast receiver, the method comprises receiving and processing first signaling information including content access information and second signaling information including content detail information, receiving and processing third signaling information including content update information, receiving and storing a content including at least one file through NRT based on the first signaling information and the second signaling information, identifying update availability of the content based on the content update information included in the third signaling information, and receiving at least one file included in the content by accessing a File Delivery over Unidirectional Transport (FLUTE) session transmitting the content when the update is available.
Adaptive filtering to adjust automated selection of content using weightings based on contextual parameters of a browsing session
This disclosure provides examples of computer-implemented systems and processes for determining a user browsing session context, intent, or activity based on contextual information associated with a user's browsing session, and using this determined context as a basis to filter or improve selection of content items for the user. For example, if the user is building up a watch list (for example, discovering new titles), then it may be desirable to filter out items for recommendation which are already on that watch list. However, when the user is searching for something to watch in the current session (for example, consuming content), then it may be more appropriate to show items already added to the watch list as recommended content. Item recommendations can thus be improved or filtered based in part on parameters of the user's browsing activity with respect to content items.
Smart snap to interesting points in media content
Systems and techniques are provided for smart snap to interesting points in media content. A position control input may be received from a user to a control interface for a content player being used with a content item. A smart snap point and an associated smart snap area t may be determined for the content item based on the received position control input. The smart snap point and the associated smart snap area may be stored. A second position control input to the control interface for the content player being used with the content item may be received. The position control input may be determined to move a position indicator into the associated smart snap area for the smart snap point. Use of the content item may be resumed with the content player from the smart snap point.
Method and apparatus for transmitting and receiving data
A method and apparatus for transmitting and receiving data are provided. In the method of receiving data, at least one of a plurality of media data generated by encoding content to have different qualities is received, the plurality of media data each including at least one segment; location information indicating a randomly accessible point of each of the at least one segment is obtained; and random accessing is provided on the received media data, based on the location information.
Backward-compatible coding for ultra high definition signals with enhanced dynamic range
Video data with both ultra-high definition (UHD) resolution and high or enhanced dynamic range (EDR) data are coded in a backward-compatible layered stream which allows legacy decoders to extract an HD standard dynamic range (SDR) signal. In response to a base layer HD SDR signal, a predicted signal is generated using separate luma and chroma prediction models. In the luma predictor, luma pixel values of the predicted signal are computed based only on luma pixel values of the base layer, while in the chroma predictor, chroma pixel values of the predicted signal are computed based on both the luma and the chroma pixel values of the base layer. A residual signal is computed based on the input UHD EDR signal and the predicted signal. The base layer and the residual signal are coded separately to form a coded bitstream. A compatible dual-layer decoder is also presented.
HDR image encoding and decoding methods and devices
An image encoder includes an input for a high dynamic range input image (M_HDR); an image grading unit arranged to allow a human color grader to specify a color mapping from a representation (HDR_REP) of the high dynamic range input image defined according to a predefined accuracy, to a low dynamic range image (Im_LDR) by a human-determined color mapping algorithm. The image encoder is configured to output data specifying the color mapping (Fi(MP_DH)). Further, the image encoder includes an automatic grading unit configured to derive a second low dynamic range image (GT_IDR) by applying an automatic color mapping algorithm to one of the high dynamic range input image (M_HDR) and the low dynamic range image (Im_LDR).
System and method for masking visual compression artifacts in decoded video streams
A technique is provided for processing decoded video data to mask visual compression artifacts resulting from video compression. In accordance with this technique, a hardware block is provided for generating and adding random noise to the decoded video stream. In one embodiment, a random number is generated for each pixel of the decoded video data and compared against one or more threshold values to determine a threshold range. In such an embodiment, a noise addend value is selected based upon the threshold comparison and summed with the current pixel. While the present technique may not eliminate the compression artifacts, the addition of random noise renders the compression artifacts less noticeable to the human eye and, therefore, more aesthetically pleasing to a viewer.
A system for encoding and/or decoding a video bitstream that includes a base bitstream and enhancement bitstreams representative of a video sequence. The receiver receives a video parameter set and a video parameter set extension, where the video parameter set extension includes decoder picture buffer parameters.
Arithmetic decoding device, image decoding apparatus, arithmetic coding device, and image coding apparatus
There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.
Inverse transform method and apparatus for video codec
An inverse transform method and apparatus for a video codec are disclosed. The inverse transformer can include: a first inverse transform unit configured to perform an inverse transform operation on an even column portion of a 2n×2n block or an n×n block sharing inverse transform coefficients; and a second inverse transform unit configured to store coefficients according to a first input mode and a second input mode and configured to select coefficients according to input mode and multiply the selected coefficients with an input value to perform an inverse transform of an odd column portion of a 2n×2n block or an n×n block.
Manipulating sub-pictures of a compressed video signal
The invention relates to manipulation of sub-pictures (303) in a picture such as a mosaic screen (301). An apparatus comprises a sub-picture generator (105) connected to a mosaic screen generator (107), which generates the mosaic screen (301) from the sub-pictures. The mosaic screen (301) is by a video compressor (111) divided into uncompressed picture blocks such that each block only comprise video data from one sub-picture. The picture blocks are compressed using a block compression scheme such as MPEG-2. The apparatus further comprises a video manipulation processor (113), which manipulates the sub-pictures by manipulating the association between control data in the video signal and the compressed picture blocks. The video data of the compressed picture blocks are not affected whereby de-compression and new compression is avoided.
Adaptive screen and video coding scheme
An adaptive screen and video coding system adaptively selects different coding schemes for coding an image block of a screen or video image based on a type of content included in the image block. The adaptive screen and video coding system further includes a screen coding scheme that classifies pixels of the image block into major colors and escape pixels and convert values of the pixels into index values assigned to the major colors and the escape pixels. Since the number of index values is usually less than a normal range of pixel values, using the index values instead of actual pixel values further facilitate compression and coding of the image block, thus improving coding accuracy and efficiency of the screen or video image. In one embodiment, the adaptive screen and video coding system may be used for screen sharing application.
Method and device for partitioning an image
A method and device for partitioning an image for transmission of one or more regions of interest of said image, the image being composed of coding units, the method comprising: performing a first partitioning of the image into one or more portions of coding units, wherein each portion is encodable or decodable without any coding dependency on another of the portions, a region of interest comprising at least one portion; and performing a second partitioning the image onto one or more segments of coding units comprising at least one independent segment which is encodable or decodable without any coding dependency on another of the segments and at least one dependent segment which is dependent on the independent segment for coding or decoding, the second partitioning being based on the portions of the first partitioning; wherein at least part of one of the portions is encoded in an independent segment and at least part of another of the portions is encoded in a dependent segment.
Adaptive bitrate streaming for wireless video
Techniques related to adaptive bitrate streaming for wireless video are discussed. Such techniques may include determining candidate bitrates for encoding segments of a source video. A minimum of the candidate bitrates may be selected and a segment of the source video may be encoded based on the selected encoding bitrate. The encoded bitstream may be transmitted wirelessly from a transmitting device to a receiving device, which may decode the bitstream and present the decoded video to a user.
System and method for estimating view synthesis distortion
System and method embodiments are provided for achieving improved View Synthesis Distortion (VSD) calculation and more accurate distortion estimation of encoded video frames. An embodiment method includes obtaining a depth map value for a video frame and determining a weighting factor for depth distortion in accordance with the depth map value. The weighting factor maps a pixel range of the depth map value to an output function having higher values for closer image objects and lower values for farther image objects. The VSD for the video frame is then calculated as a function of absolute horizontal texture gradients weighted by a depth distortion value and the weighting factor determined in accordance with the depth map value.
Image encoding apparatus, image encoding method, image decoding apparatus, and image decoding method
The present invention provides an image encoding/decoding technique that is capable of achieving the higher compression efficiency. An image encoding method comprises: an intra prediction step which performs intra prediction on a block basis to generate a predicted image; a subtraction step which calculates the difference in prediction between the predicted image generated by the intra prediction step and an original image; a frequency conversion step which performs frequency conversion processing for the difference in prediction; a quantization step which subjects the output of the frequency conversion step to quantization processing; and a variable-length encoding step which subjects the output of the quantization step to variable-length encoding processing; wherein the intra prediction encoding step predicts a target pixel to be encoded by use of pixel values of two reference pixels between which the target pixel to be encoded is located.
Image encoding apparatus, image encoding method, image decoding apparatus, and image decoding method
The present invention provides an image encoding/decoding technique that is capable of achieving the higher compression efficiency. An image encoding method comprises: an intra prediction step which performs intra prediction on a block basis to generate a predicted image; a subtraction step which calculates the difference in prediction between the predicted image generated by the intra prediction step and an original image; a frequency conversion step which performs frequency conversion processing for the difference in prediction; a quantization step which subjects the output of the frequency conversion step to quantization processing; and a variable-length encoding step which subjects the output of the quantization step to variable-length encoding processing; wherein the intra prediction encoding step predicts a target pixel to be encoded by use of pixel values of two reference pixels between which the target pixel to be encoded is located.
Moving picture coding method and moving picture coding apparatus for coding a current block in a temporal direct mode
A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.
Methods and apparatuses for video enhancement and video object tracking
Embodiments of a method and apparatus for video enhancement are generally described herein. In some embodiments, the method includes accessing a first frame of the video. The first frame can include pixel data with intensity values within one of a number of non-overlapping ranges of intensity values. The method can further include compressing the intensity values of the first pixel data to generate non-linearly compressed (NLC) pixel data such that the intensity values are compressed into smaller ranges of intensity values. The method can further include upsampling the NLC pixel data based on an upsampling ratio. The method can further include decompressing the intensity values of the upsampled pixel data by reassigning intensity values of the upsampled pixel data to intensity values in the original intensity value ranges. Other example methods, systems, and apparatuses are described.
Systems and methods for spatial prediction
Systems, methods, and instrumentalities are disclosed relating to intra prediction of a video signal based on mode-dependent subsampling. A block of coefficients associated with a first sub block of a video block, one or more blocks of coefficients associated with one or more remaining sub blocks of the video block, and an indication of a prediction mode for the video block may be received. One or more interpolating techniques, a predicted first sub block, and the predicted sub blocks of the one or more remaining sub blocks may be determined. A reconstructed first sub block and one or more reconstructed remaining sub blocks may be generated. A reconstructed video block may be formed based on the prediction mode, the reconstructed first sub block, and the one or more reconstructed remaining sub blocks.
Testing apparatus and method
A test apparatus for testing a video processing apparatus comprises means for receiving from the video processing apparatus a video output representative of a test sequence, the test sequence comprising a plurality of frames, each frame comprising an image of a respective different one of a plurality of frame identifiers; means for obtaining a sequence of sets of frame data from the video output, each set of frame data representative of a frame; and means for processing each set of frame data to determine the frame identifier for that frame.
Apparatus for automated panning and digital zooming in robotic surgical systems
In one embodiment of the invention, a digital zoom and panning system for digital video includes an image acquisition device to capture digital video images; an image buffer to store one or more frames of digital video images as source pixels; a display device having first pixels to display images; a user interface to accept user input including a source rectangle to select source pixels within frames of the digital video images, a destination rectangle to select target pixels within the display device to display images, and a region of interest within the digital video images to display in the destination rectangle; and a digital mapping and filtering device to selectively map and filter source pixels in the region of interest from the image buffer into target pixels of the display device in response to the user input.
Stereoscopic imaging device
Disclosed is a stereoscopic imaging device which answers the need for system compatibility over the entire range of long-distance (telescopic) imaging to close-up imaging, and which can faithfully reproduce stereoscopic images on the display side without adjustment. To that end, stereoscopic imaging device is disclosed in which the imaging lens optical axes (phi (L), (R)) in an imaging unit provided with imaging lenses and imaging elements (S) are arranged so as to be laterally parallel, and the distance between the optical axes (DL) is set to the interpupillary distance (B) of a human. One reference window (Wref) is defined as a virtual view frame in the image viewfield of said imaging unit. In a state in which said reference window (Wref) is projected to form reduced images by means of the left and right imaging lenses, the left and right imaging elements (S) are arranged to match the width of the left and right projected images (Iret(L) and Iref(R)) of the reference window, and left and right image data is read and sent as reference stereoscopic image data. Also disclosed is a stereoscopic imaging device which is based on the aforementioned stereoscopic imaging device and which enlarges or reduces the distance between optical axes to greater or smaller than the interpupillary distance and is adapted for a wide range of imaging, from long-distance imaging to close-up imaging.
Apparatus and method for adjusting depth
A depth adjusting method and apparatus is described. The depth adjusting method and apparatus may calculate an average depth value of objects based on a spatial feature of an image, may adjust a depth of the image based on the calculated average value, and may adjust a depth of the image according to a difference in depth between a current frame and a previous frame, based on a temporal feature of the image.
Method and apparatus to produce re-focusable vision with detecting re-focusing event from human eye
The current invention relates to the method to achieve re-focusable vision, including re-focusable stereo vision, with detecting the re-focusing event from a human eye. The method comprises utilizing optical and electrical sensing apparatus to detect the physiological change of viewer's eye without viewer's active participation or physical action, and retrieving the intended focus depth information of the viewer from such physiological information to update the visual impression perceived by the viewer that matches the intended focus depth, to achieve a re-focusable vision. The sensing apparatus includes both “glass” type and “contact-lens” type of see-through substrates that contain optical and electrical components that are necessary for obtaining the physiological information of viewer's eye and controlling the visual impression that the viewer perceives.
Automatic tracking, recording, and teleprompting device using multimedia stream with video and digital slide
One variation of a method for monitoring an object during a presentation, includes: initiating capture of a video with a camera defining a field of view, the camera arranged on a first side of a mobile computing device supported on a base device; generating a position signal defining a position of the remote device relative to the camera; in response to wirelessly receiving a first input selection from the remote device, indexing through digital slide content rendered on a display arranged on the first side of the mobile computing device; in response wirelessly receiving sensor data from a remote device coupled to the object, generating an event tag including a timestamp; and generating a multimedia stream including the video, the position signal data, digital slide content, the first input selection, and the event tag.
Network system, terminal apparatus, recording apparatus, method of displaying record scheduling state, computer program for terminal apparatus, computer program for recording apparatus
A network system includes a terminal apparatus, a recording apparatus, and a network. The recording apparatus includes a record-scheduling-state storing section that stores data of a record scheduling state of a program and a record-scheduling-state providing section that transmits the data of the record scheduling state stored in the record-scheduling-state storing section through the network. The terminal apparatus includes a record-scheduling-state acquiring section that acquires the data of the record scheduling state of the recording apparatus through the network, an EPG data acquiring section that acquires EPG data, a record-scheduling-state-display processing section that creates, on the basis of the data of the record scheduling state acquired by the record-scheduling-state acquiring section and the EPG data acquired by the EPG data acquiring section, EPG display data that reflects the record scheduling state, and a display unit that displays the EPG display data created by the record-scheduling-state-display processing section.
Image processing apparatus, imaging device, image processing method, and program for reducing noise or false colors in an image
There are provided an apparatus and a method which generate an RGB image having less color noise and fewer false colors by inputting an RGBW image. The apparatus has an image sensor having an RGBW array, and an image processing unit which performs image processing by inputting a sensor image formed of an RGBW pixel signal output from the image sensor. The image sensor has a periodic array of a unit composition formed of each RGBW pixel, and has an array in which composition ratios of each RGB pixel within the unit composition are adapted to be the same as each other. The image processing unit converts a pixel array of the sensor image formed of the RGBW pixel signal, and performs at least either array conversion processing for generating an RGB array image or signal processing for generating each RGB image signal in which all RGB pixel values are set for each pixel position of the sensor image.
Method and device for estimating a color mapping between two different color-graded versions of a picture
A method and device for processing a picture comprises estimating a color mapping between a first and a second color-graded version of the picture by estimating a color mapping function that maps the color values of the first color-graded version of the picture onto the color values of the second color-graded version of the picture.
Projector and control method for projector
In a projector, a reflection mirror configured to reflect light emitted from a discharge lamp is disposed on a first end of a discharge lamp main body, a first electrode is disposed on the first end side, each of a first AC period and a second AC period alternately includes a first polarity period in which the first electrode serves as an anode and a second polarity period in which a second electrode serves as an anode, a controller causes a period to transition from the first AC period to the second AC period in a case where an input reception unit receives a stop operation on the projector, and an absolute value of a driving current of the second polarity period in the second AC period is greater than an absolute value of the driving current of the second polarity period in the first AC period.
Motorcycle having a video camera mounted thereon for monitoring a road surface, and methods of using same
A motorcycle has a video camera attached thereto in such a manner as to shoot sharp images. A motorcycle includes a camera adapted to shoot a road surface. The camera is arranged below an engine or a swing arm and more rearward than the center of a crankshaft of the engine. The swing arm pivotally supports a rear wheel with a rear edge portion thereof. The camera is fastened to, and supported either by a lower portion of the engine or by a lower portion of a vehicle body frame connected to the engine.
Method of controlling a door regulating apparatus of vehicle
A door regulation apparatus positions a door mounted in a freely rotatably state in a vehicle body at a reference position in a gap/step measuring process, makes a step of a preset portion of the door to zero, and includes: i) a frame installed outside of a vehicle body transfer line; ii) a moving member reciprocating in the frame through a driving unit; iii) a clamping unit installed in the moving member vacuum adsorbs a skin surface of the door; iv) a sensor installed in the clamping unit senses a vacuum pressure operating at the skin surface; v) a vision photographing unit installed in the moving member photographs a preset portion of the door; and iv) a control unit analyzes and processes a sensing signal from the sensor and vision data that acquires from the vision photographing unit to control the driving unit.
Cigarette inspection apparatus
An image of the filter end faces of a bundle of cigarettes arranged side by side with axes thereof paralleled is acquired as an inspection image, and the diameters of the individual cigarettes of the bundle in the inspection image are obtained and compared with normal diameters associated with the respective cigarettes in the inspection image, to determine axial displacement of cigarettes from the bundle (first determination section). Also, the centers of gravity of the end faces of the individual cigarettes are obtained, and based on the difference between an inter-center-of-gravity distance which is the distance between an outermost cigarette in the bundle and its adjacent cigarette, and an inter-center-of-gravity distance which is the distance between adjacent cigarettes located in the central part of the bundle and belonging to the same tier as the outermost cigarette, axial displacement of the outermost cigarettes is determined (second determination section).
Method for allocating a video conferencing task to a processing device
A method for allocating a video conferencing task within a computer network comprising a plurality of candidate processing devices, the method comprising: for each of the candidate processing devices: determining a topological score, the topological score being a function of at least one end-to-end delay between a pair of participating endpoints through the candidate processing device; for each candidate processing device within at least a subset of the candidate processing devices: determining an availability score, the availability score being a function of an available processing capacity of the candidate processing device; selecting a preferred processing device among the candidate processing devices as a function of the topological scores and of the availability scores, and allocating the video conferencing task to the preferred processing device.
Personal control apparatus and method for sharing information in a collaborative workspace
A cable management system comprising at least a first control cable with a respective cable connector that is configured to operably link with a video/audio source device, a control button configured to generate a control signal when pressed thereby causing transfer of control of the one or more pieces of video/audio presentation equipment from a video/audio source device of a previous user upon selection of the button while the previous user is controlling the pieces of video/audio presentation equipment to a video/audio source device of the user that pressed the control button and initiating control of the pieces of video/audio presentation equipment upon selection of the button while no user is controlling the one or more pieces of video/audio presentation equipment and an illuminated indicator configured to illuminate in a manner indicative of a control state of the video/audio presentation equipment.
Immersive teleconferencing with translucent video stream
An immersive video teleconferencing system may include a transparent display and at least one image sensor operably coupled to the transparent display. The at least one image sensor may be multiple cameras included on a rear side of the transparent display, or a depth camera operably coupled to the transparent display. Depth data may be extracted from the images collected by the at least one image sensor, and an image of a predetermined subject may be segmented from a background of the collected images based on the depth data. The image of the segmented predetermined subject may also be scaled based on the depth data. The image of the scaled segmented predetermined subject may be transmitted to a remote transparent display at a remote location, and displayed on the remote transparent display such that a background surrounding the displayed image of the remote location is visible through the transparent display, so that the predetermined subject appears to be physically located at the remote location.
Method and apparatus for transmitting video signal
Provided is a method and apparatus for transmitting a video signal. The video signal transmission method and apparatus receives a digital video signal from a video sensor, reconfigures the digital video signal by adaptively adjusting at least one of the number of horizontal blank samples and the number of vertical blank lines of the digital video signal so that the digital video signal corresponds to a video standard, converts the reconfigured digital video signal to an analog video signal, and transmits the analog video signal.
Solid-state imaging device and camera system with unit pixels arranged in matrix state
A solid-state imaging device includes a pixel array with unit pixels each having a photoelectric conversion device arranged in a matrix. Column signal lines are wired with respect to one column in the pixel arrangement and pixels are regularly connected to the column signal lines in accordance with rows in which pixels are positioned. A pixel signal reading unit has a column processing unit that reads pixel signals in units of plural pixels from the pixel array and performs column processing to read signals on a column basis, wherein the pixel signal reading unit includes a column input unit which can connect one or plural column signal lines arranged at a corresponding column to an input of one column processing unit through plural capacitors connected in parallel The column input unit has switches which can change a connection state between capacitors and column signal lines corresponding to the column.
Imaging systems for infrared and visible imaging with patterned infrared cutoff filters
An image sensor may include a pixel array having visible and infrared imaging pixels for simultaneously detecting light in the visible and infrared spectral ranges. The pixel array may include an array of photodiodes, an array of filter elements formed over the photodiodes, and an array of microlenses formed over the array of filter elements. The filter elements may include infrared cutoff filter elements that block infrared light while passing visible light. The infrared cutoff filter elements may be formed from a patterned layer of infrared blocking material. Each visible imaging pixel includes a portion of the infrared blocking material and a color filter element. Each infrared imaging pixel is aligned with an opening in the infrared blocking material. The opening may be filled with an infrared pass filter element that passes infrared light while blocking visible light.
Imaging system for an aircraft
Aircraft imaging system, including apparatus and methods, with compensation for changes to an attitude of an aircraft. In some embodiments, the system may include an array of image detectors having fields of view that partially overlap to create a wider field of view collectively. The system also may include a processor programmed to (a) splice video images collected by the array of image detectors while the array remains mounted in a fixed relation to an aircraft having a varying attitude, to create a series of spliced frames representing the wider field of view over a time interval, and (b) select a frame portion of each spliced frame based at least in part on one or more signals from an attitude sensor carried by the aircraft such that the selected frame portions each represent a same angle of view with respect to horizontal.
Controlling method for image capturing and image integration
A controlling method, suitable for a first camera unit and a second camera unit, is disclosed herein. The controlling method include following steps. The first camera unit is triggered to generate a first media data by shooting a first image or recording a first video. In response to the first media data is generated, the second camera unit is automatically triggered to generate a second media data by shooting a second image or recording a second video. The first media data and the second media data are configured to be integrated into a third media data.
Image displaying apparatus and image displaying method
An image displaying apparatus comprises, an operation input detector for detecting a touch operation on a display screen of a display, an image position selection section for selecting position of part of an image that has been displayed on the display, an image identification section for recognizing an image region that has been selected based on image position that has been selected by the image position selection section, and a touch operation that has been detected by the operation input detector, as a main subject image region, and a special image processing section for applying special effect image processing to a region other than at least part of the main subject image region that has been selected, wherein the special image processing section varies the special effect processing intensity in accordance with a touch operation that has been detected by the operation input detector.
Method, apparatus and system for providing reproducible digital imagery products
The present invention provides a method, apparatus and system for providing reproducible digital imagery products from captured image content and for the color correction of the reproducible digital imagery products. In one embodiment, the present invention provides a log video signal comprising at least density values for the contrast levels of the original image content for enabling a quantitative assessment of the image content information for providing repeatable and reproducible values from which a cinematographer/director of photography could order the color correction or adjustment of the image content in a reproducible manner understood device by a color correction specialist or “timer”.
Image processing apparatus and method
An image processing apparatus comprising: an obtaining unit configured to obtain a first image of an object shot with flashing of an illumination device and distance information of distances to a plurality of positions of the object; a determination unit configured to determine a position of a virtual light source that emits virtual light; and a processing unit configured to obtain shape information of the object based on the distance information, and generate an image in which the object is illuminated by the virtual light source by processing the first image based on the obtained shape information of the object, the distance information, and the position of the virtual light source with respect to the object.
Imaging apparatus and storage medium, and exposure amount control method
An imaging apparatus includes an imaging module configured to capture an image, and a controller. The controller obtains a luminance of a minimum luminance area or a maximum luminance area in an imaging target area of an image captured by the imaging module and controls an exposure amount in the imaging module on the basis of the luminance.
Method and apparatus for determining camera location information and/or camera pose information according to a global coordinate system
An approach is provided for processing and/or facilitating a processing of one or more images to determine camera location information, camera pose information, or a combination thereof associated with at least one camera capturing the one or more images, wherein the camera location information, the camera pose information, or a combination thereof is represented according to a global coordinate system. The approach involves causing, at least in part, an association of the camera location information, the camera pose information, or a combination thereof with the one or more images as meta-data information.
Imaging device and focusing control method
A phase difference AF processing unit (19) calculates, through an operation using a detection signal group SA of phase difference detection pixels (52A) in an AF area (53), a detection signal group SB of phase difference detection pixels (52B), and a detection signal group SN of G pixels 51 in a row between a row including the phase difference detection pixels (52A) and a row including the phase difference detection pixels (52B), a third correlation value corresponding to a value obtained by adding up a first correlation value between the detection signal group SA and the detection signal group SN and a second correlation value between the detection signal group SB and the detection signal group SN, and generates a defocus amount Df1 from the third correlation value. A system control unit (11) drives a focus lens based on the defocus amount Df1.
Apparatus and method comprising deformable lens element
An apparatus comprising a deformable lens element can be provided wherein a deformable lens element can be deformed to change an optical property thereof by the impartation of a force to the deformable lens element.
Imaging device and method for displaying multiple objects of an imaging view
An imaging device includes an imaging lens, a generation device, a display device, a generation control device, and a display control device configured to control the display device to display the first display image generated by the generation device and display the second display image generated by the generation device in a display region of the first display image, and to display the second display image in a position corresponding to the main object image in the first display image when the main object image is detected by the detection device, wherein the detection device can detect an eye position in the main object image, and when the eye position is detected by the detection device, the generation control device controls the generation device to generate a division image that divides the main object image with the eye position as a boundary from the first and second images.
Compact, rugged, intelligent tracking apparatus and method
In a video recording environment, a compact, rugged, intelligent tracking apparatus and method enables the automation of labor-intensive operating of cameras, lights, microphones and other devices. Auto-framing of a tracked object within the viewfinder of a supported camera is possible. The device can sense more than one object at once, and includes multiple ways to easy way to switch from one object to another. The methods show how the auto-framing device can be “predictive” of movements, intelligently smooth the tilt and swivel motions so that the end effect is a professional looking picture or video. It is designed to be uniquely small yet rugged and waterproof. And it can accept configuration input from users via a smartphone or extreme-sports camera over wi-fi or bluetooth, including user-programmable scripts that automate the device functionality in easy to use ways.
Camera system, camera body, interchangeable lens, and communication method
In a camera system including a camera body (200) and an interchangeable lens (100), the camera body includes a body-side communication unit, and a body-side control unit that transmits a request signal to the interchangeable lens via the body-side communication unit, and receives a response signal corresponding to the transmitted request signal from the interchangeable lens via the body-side communication unit, the interchangeable lens includes a lens-side communication unit, and a lens-side control unit that transmits the response signal corresponding to the received request signal to the camera body via the lens-side communication unit when receiving the request signal via the lens-side communication unit, and the lens-side control unit transmits lens information in synchronization with a frame of a video without receiving a request signal for lens information from the camera body at least in a video recording mode.
Adjustable filter device for a camera
A filter device for a camera which has an optical path, comprises at least one filter unit which has an actuation device and at least one first filter element and one second filter element. The actuation device has a holding device which can be magnetically coupled to the first and to the second filter element and which can be displaced linearly to bring the filter elements selectively into the optical path of the camera or to move them out of the optical path of the camera.
Camera skid tractor nozzle assembly
A camera skid and thrust nozzle assembly for supporting a camera while being positioned in a tubular pipe or conduit spaced from any wall of the conduit and permitting movement of the assembly along the conduit. The assembly includes a cage rotatably fastened to a high pressure fluid tractor nozzle, wherein the cage can rotate about an axis through the tractor nozzle. A camera support structure is fastened within the cage for rotation of the support structure about the axis independent of rotation of the cage. The camera support structure has a weight attached thereto for urging rotational orientation of the camera support structure within the cage according to a sensed external gravitational force on the assembly.
Camera housing with integrated expansion module
A camera housing includes an integrated expansion module for providing expanded functionality to a camera (e.g., a display screen). Different embodiments of the housing include different expansion modules for adding a variety of features to the camera when the camera is placed in the housing. Thus, a user may modify features of a camera by swapping the housing. Furthermore, a user may add a feature to an existing camera without needing to purchase a new camera.
An imaging apparatus includes a lens module having a lens at a front thereof, a dome cover including a lens module housing space, an apparatus main body attached with the dome cover, a first support member supported at the apparatus main body in a free pan rotation manner inside the dome cover, a second support member supported at the first support member in a free tilt rotation manner and supports the lens module, a ring-shaped light shielding cover that surrounds the front of the lens module and comes into contact with an inner surface of the dome cover, an illumination mount that includes an illumination member provided further outward than an inner circumference of the light shielding cover and the light shielding cover disposed thereon and supported at the second support member, and a first elastic member that biases the illumination mount toward the dome cover.
Image processing apparatus and method for correcting image based on edge detection
Disclosed herein are an image processing apparatus, an image capturing apparatus, an image processing method, and a method of controlling an image capturing apparatus. The image processing apparatus includes: an input unit through which an image is input, a correction value decider configured to detect an edge of the image by applying at least one directional filter that is alignable in a direction with respect to the image, to calculate a mean value of a plurality of pixel values of a plurality of pixels that correspond to the edge, and to determine a correction value that corresponds to each pixel of the image according to the mean value of the plurality of pixel values, and an image corrector configured to apply the correction value to the image in order to correct the image.
Printing devices and methods for rendering a surface using different color modes and profiles
Disclosed are printing devices and methods that accommodate the use of multiple different output color modes and, thereby multiple different output color profiles and that support user selection of any of the profiles for printing different logical pages on a single print surface. Consequently, they do not require a user to trade off between a desire to achieve a particular result in an image on one logical page, wherein the particular result is only achievable with an extended gamut profile, and a desire to avoid the higher cost associated with unnecessarily using the extended gamut profile to print a different image on a different logical page on the same print surface. Thus, the printing devices and methods provide for rendering of both standard and enhanced quality images on the same print surface in accordance with user selections and for minimizing costs associated with printing (e.g., due to excessive colorant usage).
Displaying image thumbnails in re-used screen real estate
Methods, system and computer-readable media are disclosed to facilitate presenting a plurality of digital images in a user interface window that includes an image display region and at least one other region available for re-use, receiving input from a user indicating a selection of at least one of the digital images, and modifying the presentation of the user interface window to present the selected at least one digital image in the image display region and to present the non-selected digital images as thumbnail images displayed within the at least one other region available for re-use. The thumbnail images displayed in the re-use region may be selectively displayed in a more prominent manner to facilitate user interaction.
Data storage system, image processing device, portable terminal, and non-transitory computer readable medium for storing data obtained by the image processing device
An image processing device includes storage unit, a communication portion and an image processing function control portion. The storage unit stores image data. The communication portion performs communication with a server and a portable terminal. The image processing function control portion causes the communication portion to transmit the image data stored in the storage unit to the server and causes the communication portion to transmit the image data to the portable terminal in response to failure of the transmission of the image data to the server by the communication portion.
Display apparatus and method
A display apparatus and method. A display apparatus including a display control unit configured to display a moving image on a first region of a display screen; and a thumbnail generation unit configured to generate a plurality of thumbnail images based on a plurality of still images related to the moving image, wherein the display control unit is configured to display the plurality of thumbnail images on a second region of the display screen.
Information processing apparatus and non-transitory computer readable medium having shifting modes based upon sensed distance
An information processing apparatus includes a sensor unit that senses a person within a first distance from the information processing apparatus and a second distance set to be closer to the information processing apparatus than the first distance, and a shifting unit that sets the information processing apparatus to a first mode when the person is sensed within the first distance by the sensor unit, and shifts the information processing apparatus from the first mode to a second mode that consumes power less than in the first mode after the predetermined time has elapsed, the predetermined time being a time starting once the person is no longer sensed within the second distance by the sensor unit.
Image reading apparatus, computer readable medium for the image reading apparatus, and method to correct an image read by the image reading apparatus
An image forming apparatus, including a reading device and a controller to control the reading device to execute a reading operation, is provided. The controller in the reading operation executes a leading edge detecting process, wherein a leading edge of an original sheet is detected from image data acquired through the reading device; a trailing edge detecting process, wherein a trailing edge of the original sheet is detected from the image data acquired through the reading device; a determining process, wherein one of the leading edge and the trailing edge to be used to correct the image data acquired through the reading device is determined based on conditions of the detected leading edge and the trailing edge; and a correcting process, wherein the image data is corrected by use of the determined one of the leading edge and the trailing edge determined in the determining process.
Image forming apparatus, and control program and operation method thereof
According to an embodiment, an image forming system includes at least one image processing device in communication with a server. The server stores an awards account for each of a plurality of users. The server receives, from the at least one image processing device, a reused sheet count of a number of sheets provided by a user and subject to image formation by the image processing device. The server also receives, from the at least one image processing device, a user identification corresponding to the user. The server updates the awards account corresponding to the user based on the received reused sheet count and user identification.
Registration correction for periodic ink coverage patterns
Color registration errors are corrected for print jobs including periodic image content. Pixels values for a set of document pages are analyzed to identify the presence a periodic pattern of ink coverage having a repeat period. A first subset of document pages are printed and the resulting color registration errors are measured and analyzed to determine a periodic pattern of color registration errors. A repeating pattern of color registration correction values are determined corresponding to the periodic pattern of color registration errors. A second subset of the document pages is printed using the determined repeating pattern of color registration correction values.
Processing of a request to instigate communication by a routing device associated with a plurality of terminals
A method and apparatus are provided for processing a request to instigate communication, received by a routing device associated with a plurality of terminals. The request relates to a communication to be established between a sender device of the request and at least one of the terminals. The method includes a step of comparing communication capabilities of said sender device with respective communication capabilities of one or more terminals, called addressee terminals, which are able to establish said communication, so as to identify at least one terminal having capabilities making it possible to establish with the sender device a communication of maximum quality. A call notification is transmitted to at least one of the addressee terminals, which is suitable for triggering on the addressee terminal a call presentation prompting a user to use, by priority, one of the terminals identified during the comparison step to establish the communication.
Non-IMS rich communication suite
This invention relates to telecommunications, and in particular, to a Rich Communication Suite (RCS) and RCS-e (“e” for enhanced) messaging infrastructure within a network without the need to deploy an IP Multimedia Subsystem (IMS) core within the network.
Call mapping systems and methods using variance algorithm (VA) and/or distribution compensation
Method, system and program product, comprising obtaining agent performance data; ranking, agents based the agent performance data; dividing agents into agent performance ranges; partitioning callers based on criteria into a set of partitions; determining for each partition an outcome value for a first agent performance range and a second agent performance range; calculating for the partitions a respective outcome value difference indicator based on the outcome value for the first agent performance range and the outcome value for the second agent performance range for the partition; matching a respective agent to a respective caller in one of the partitions, based on the outcome value difference indicators for the partitions.
Contact center call routing by agent attribute
A system, method, and computer readable medium for contact center call routing by agent attribute, that comprises, detecting a caller voice attribute, sampling at least one agent voice attribute, storing the at least one agent voice attribute, matching the detected caller voice attribute to the stored voice attribute of the at least one agent, and routing a call based upon the matched agent voice attribute to the detected caller voice attribute.
Systems, method, and computer program product for cross-channel customer relationship management support with dynamically inserted voice call numbers
Disclosed embodiments relate generally to Customer Relationship Management (CRM), and more particularly to a system, methods, and computer program products providing or supporting a cross-channel CRM support system for serving contact phone numbers for display at a web site and using such numbers to track, analyze and utilize prospective customer behavior on the Internet prior to the prospective customer calling the served contact phone number.
Systems and methods of processing inbound calls
Methods and systems for reducing the impact of fraudulent or spam calls are disclosed. One or more calls to a first phone address are received, the first phone address not currently associated with a communication for a customer prospect. The calling party phone addresses associated with the calls received prior to the association of the first phone address to the first communication are stored. Then the first phone address is associated to the first communication. A first call to the first phone address is received. Prior to answering the first call and at least partly in response to a determination that a calling party phone address of the first call matches one of the previously stored calling party phone address, the first call is identified as a spam or otherwise undesirable call candidate and may be rejected.
Method and system for processing an incoming call
A method and system for processing an incoming call to an electronic communication device enables a response to an incoming call to be determined based on whether a peripheral device is operatively coupled to the electronic communication device. A first call processing profile is associated with a first peripheral device and a second call processing profile is associated with a second peripheral device. The method comprises determining that the first peripheral device is operatively coupled to the electronic communication device (step 210). The incoming call to the electronic communication device is then allowed to be processed according to the first call processing profile in response to the first peripheral device being operatively coupled to the electronic communication device (step 215).
Accessible and updateable service records
A first component of a service is provided via a first communications mode by an automated agent to a requester who is a recipient of the first component. After the first component is provided, a record of the first component is provided from a memory controlled by a provider of the service and via a second communications mode selected by the requester. The record is an editable electronic first record of the first component that can be edited by the requester independent of a provider of the service to update the first record. Electronic edits to the electronic first record of the first component are accepted via the second communications mode selected by the requester. A second component is provided to the requester in accordance with the edited electronic first record of the first component.
Telecommunication call management and monitoring system with voiceprint verification
A secure telephone call management system is provided for authenticating users of a telephone system in an institutional facility. Authentication of the users of the telephone call management system is accomplished by using a personal identification number, biometric means, and/or radio frequency means. The secure telephone call management system includes accounting software capable of limiting access to the system based on funds in a user's account, and includes management software capable of implementing widespread or local changes to the system. The system monitors a conversation in the telephone call to detect a presence of a first characteristic in audio of the conversation, and terminates the telephone call if the first characteristic does not match a second characteristic of biometric information of a user or a called party.
Reduction in network congestion
A system, method and non-transitory computer readable storage medium comprising instructions that when read by a processor perform receiving a telephony connection request, determining addressing information regarding the telephony connection request, the addressing information including at least routing information or a phone number, determining traffic information regarding the telephony connection request based on the addressing information, the traffic information including previous telephony connection requests, sending a reply in response to the telephony connection request, wherein: forwarding the telephony connection request to an intended recipient would result in a system response, and the reply differs from the system response.
Messaging including custom characters with embedded content
Embodiments described herein enable messaging using custom characters (e.g., custom emoji) that are not part of a Unicode Standard, as well as associating such custom characters with embedded content. The embedded content can be, for example, a quick response (QR) code, a coupon, an advertisement, a map, a static image, a moving image, a video, audio, or combinations thereof. A client device receives message data including a unique custom character reference. The client device obtains (e.g., from a remote server) image data and embedded data for the custom character associated with the unique custom character reference. The client device uses the image data to display the custom character associated with the unique custom character reference. The client device displays embedded content associated with the custom character, in response to accepting an indication that a user of the client device has selected the displayed custom character.
Smart automatic composition of short messaging responses
An electronic communication device and method for communication including automatically selecting, composing, and/or presenting a number of proposed responses to a message is disclosed. The device can present the incoming message content to the user together with an alert to the user that one or more proposed responses are available for review and selection. The device can calculate a confidence metric for each proposed response. The user alert and/or presentation of the messages can be made to vary in intensity in accordance with the confidence metric of the one or more proposed responses. The presentation of the proposed responses can be alternated and/or combined with a method for the device to receive user input to the content of the proposed response. The user can edit a proposed response rather than composing a complete response.
Mobile smart massage device
A mobile smart massage device includes a mobile device having a first connector; a connective wire having one end installed with a second connector connectable to the first connector of the mobile device and another end thereof being installed with a plurality of conductive connecting units each capable of being connected with a conductive adhering sheet; and a chip control module installed on the second connector of the connective wire for determination of connection coupling and for data transmission. The conductive adhering sheet is installed with a connecting portion for connecting with the conductive connecting unit. The and second first connector of the mobile device is one of a USB 2.0 socket, a USB3.0 socket, a MICRO USB plug and an AUDIO JACJ plug. The mobile device is installed with an application program which may be a mobile application.
Base of cordless digital telephone set, cordless digital telephone set, and voice data transmitting method
Embodiments disclose a base of a cordless digital telephone set and a cordless digital telephone set. In the base of a cordless digital telephone set, a subscriber circuit module and a Bluetooth module can establish, under control of a main control module, a communications channel for direct interconnection, thereby reducing workload of the main control module, and optimizing a transmission path of voice data. The base of a cordless digital telephone set in embodiments of the present invention includes a switch module. When receiving a first control signal that is sent by the main control module, the switch module connects a communication data output pin of the subscriber line interface circuit module to a communication data input pin of the Bluetooth module; and connects a communication data input pin of the subscriber line interface circuit module to a communication data output pin of the Bluetooth module.
Dynamic vehicle automation level availability indication system and method
A computing device configured for communication with at least one autonomously controllable vehicle system or component. The computing device includes one or more processors for controlling operation of the computing device, and a memory for storing data and program instructions usable by the one or more processors. The one or more processors are configured to execute instructions stored in the memory to transmit a message configured to inform a vehicle user of all currently available levels of vehicle automation.
Communication device and method for disguising communication environment thereof
A method for disguising the environment and thus the location in which a telephone is being used includes acquiring a disguised environmental sound from a storage device in response to a selection of a user, controlling a voice acquiring device to acquire voice of the user and actual undisguised environmental noise during a call. An environmental noise signal is removed and replaced by an environment-disguising sound signal. An ultrasonic signal can be generated and synthesized with the transmitted voice signal to indicate mis-use of a communication device notwithstanding the environment-disguising noises.
Mobile terminal and method of controlling mobile terminal to display image upon receiving proximity touch input
A mobile terminal and a method of controlling a mobile terminal are provided. According to one embodiment, a mobile terminal includes: a touch screen for displaying and receiving information; and a controller for: controlling the touch screen to display a lock screen upon the mobile terminal entering a lock screen state; and controlling the touch screen to display a preview image of each of at least one application executed before entering the lock screen state upon receiving a proximity touch input on the displayed lock screen.
Electronic portable device shell having an integral stand and stand brace
A shell is configured to attach to an electronic portable device (such as a smart phone or a pad/tablet-styled device). The shell comprises a unitary integral component having a stand that selectively moves between a deployed position and a stowed position and a corresponding stand brace that selectively moves between a deployed position and a stowed position. By one approach the stand pivots with respect to a portion of the shell that attaches to the electronic portable device and the stand brace pivots with respect to the stand. By one approach the stand and the stand brace are substantially disposed planar to one another when both are in their respective stowed positions. By one approach a free end of the stand brace contacts the electronic portable device when the stand brace is in its deployed position to thereby bias the stand towards the deployed position for the stand.
Headset-based telecommunications platform
A hands-free wireless wearable GPS enabled video camera and audio-video communications headset, mobile phone and personal media player, capable of real-time two-way and multi-feed wireless voice, data and audio-video streaming, telecommunications, and teleconferencing, coordinated applications, and shared functionality between one or more wirelessly networked headsets or other paired or networked wired or wireless devices and optimized device and data management over multiple wired and wireless network connections. The headset can operate in concert with one or more wired or wireless devices as a paired accessory, as an autonomous hands-free wide area, metro or local area and personal area wireless audio-video communications and multimedia device and/or as a wearable docking station, hot spot and wireless router supporting direct connect multi-device ad-hoc virtual private networking (VPN). The headset has built-in intelligence to choose amongst available network protocols while supporting a variety of onboard, and remote operational controls including a retractable monocular viewfinder display for real time hands-free viewing of captured or received video feed and a duplex data-streaming platform supporting multi-channel communications and optimized data management within the device, within a managed or autonomous federation of devices or other peer-to-peer network configuration.
Apparatuses and methods for processing data communicated between different protocol layers
A mobile communication device including a Baseband processor is provided. The Baseband processor determines an ending period of time of a Transmission Time Interval (TTI) for processing one or more first Service Data Units (SDUs) in a first protocol layer, and prior to the ending period of time, pre-processes one or more second SDUs, which are received during the remaining period of time of the TTI, and re-processes the pre-processed second SDUs in a second protocol layer to generate the first SDUs. Particularly, the second protocol layer is hierarchically higher than the first protocol layer in a communication protocol stack.
Adaptable applications in a client/server architecture
Adapting web-based applications in a client/server web-based architecture is provided. At least a first version and a second version of a client/server application is provided. An adaptable application platform monitors a client and a server in a client/server web-based architecture for one or more performance characteristics. If one or more configurable performance characteristics exceeds a threshold, the adaptable application platform switches dynamically between executing the first version to executing the second version. The first version is server preferring and the second version is client preferring.
Method and apparatus for suspending screen sharing during confidential data entry
A method, transmitting device, and computer-readable storage medium are provided for sharing image data between a source device and at least one receiving device. In one implementation, a method is provided for periodically sending image data of a shared screen to the at least one receiving device using a sharing connection. The method also receives a request associated with activating a user interface component involving confidential information, suspends updating of the image data responsive to the received request, and periodically sends suspended image data to the at least one receiving device while updating is suspended.
Method for commissioning and joining of a field device to a network
The invention relates to a method for joining of a first field device to a wireless sensor actuator network using a configuration tool. The wireless sensor actuator network comprises a plurality of interconnected field devices and gateway for connecting the interconnected field devices to a plant automation network comprising controllers and network manager. The method comprises receiving device information associated with the first field device, transmitting a commissioning request for the first field device, the commissioning request comprising device information and geographical location information of the first field device, receiving commissioning information comprising a session key, a network key and routing information, and commissioning the first field device using the received commissioning information for joining the said field device to the wireless sensor actuator network.
Real-time information feed
A device driver includes an aggregator aggregating data blocks into one or more container objects suited for storage in an object store; and a logger for maintaining in at least one log file for each data block an identification of a container object wherein the data block is stored with an identification of the location of the data block in the container object.
Mechanism for providing load balancing to an external node utilizing a clustered environment for storage management
A method for providing load balancing to a client node external to a clustered environment for storage management, includes deploying a lightweight load balancing component at the client node, receiving I/O requests issued by virtual machines hosted at the client node by the lightweight load balancing component, performing a hashing algorithm on content of the I/O requests by the lightweight load balancing component to identify one or more controller virtual machines at the clustered environment for handling the I/O requests and dynamically distributing the I/O requests from the lightweight load balancing component to the one or more controller virtual machines at the clustered environment for storage management.
User experience monitoring for application remoting
Methods, systems, and computer programs for user experiencing monitoring for application remoting. One of the methods includes receiving a request to provide an application to a remote client. The application is executed to generate one or more application windows. A watermark window that includes a watermark is generated. Display data for the application is, generated, including the watermark window and the one or more application windows. The display data for the application is provided to the remote client for presentation on the remote client. Data identifying an operation to be performed by the application is obtained. The watermark is updated to encode information identifying the operation and information identifying an initialization of the operation by the application. Data identifying a completion of the operation is received by the application. The watermark is updated to encode information identifying the completion of the operation.
Managed media relay selection for real-time communications
A system provides a media relay for real-time communications (“RTC”). The system receives, by a signaling server, a first signaling message from a first client including one or more first candidate transport addresses of the first client. The system generates a modified first signaling message by inserting a transport address of a relay server into the first signaling message, and transmits the modified first signaling message to a second client. Then, the system receives a second signaling message from the second client including one or more second candidate transport addresses of the second client. The system generates a modified second signaling message by inserting the transport address of the relay server into the second signaling message, and transmits the modified second signaling message to the first client.
Relaying device, communication system, and communication method
A relaying device is provided, which can mediate by using communications of a wireless apparatus without clipping off the beginning of verbal communication. The relaying device includes: a network interface that receives an audio signal as a group of packet trains via a network; a wireless apparatus interface to which a wireless apparatus is connected; a voice buffer that temporarily stores the audio signal; and a control unit that starts temporarily storing the audio signal in the voice buffer and requests the wireless apparatus to reserve a channel, when a leading packet of the group of packet trains is received, and that reads the temporarily stored audio signal from the voice buffer and transfers the audio signal to the wireless apparatus, after receiving from the wireless apparatus a reply indicating that a channel has been reserved.
Electronic devices for sending a message and buffering a bitstream
An electronic device for sending a message is described. The electronic device includes a processor and instructions stored in memory that is in electronic communication with the processor. The electronic device determines whether a first picture is a Clean Random Access (CRA) picture. The electronic device also determines whether a leading picture is present if the first picture is a CRA picture. The electronic device further generates a message including a CRA discard flag and an initial CRA Coded Picture Buffer (CPB) removal delay parameter if a leading picture is present. The electronic device additionally sends the message.
Adaptive performance control of multi-stream data transfer from a source system to a target system
According to one embodiment, in response to a request to transfer a data set from a source system to a target system over a network, an adaptive performance control (APC) controller allocates a plurality of data streams for transferring the data set. The APC controller activates one or more data streams from the allocated data streams to transfer the data set from the source system to the target system. The APC controller monitors an overall throughput of the activated data streams assigned to transfer the data set from the source system to the target system. The APC controller dynamically adjusts a number of the activated data streams based on the monitored overall throughput of the activated data streams, such that a maximum overall throughput of the activated data streams is reached while maintaining a minimum number of the activated data streams.
Stream-based data deduplication using directed cyclic graphs to facilitate on-the-wire compression
Stream-based data deduplication is provided in a multi-tenant shared infrastructure but without requiring “paired” endpoints having synchronized data dictionaries. Data objects processed by the dedupe functionality are treated as objects that can be fetched as needed. As such, a decoding peer does not need to maintain a symmetric library for the origin. Rather, if the peer does not have the chunks in cache that it needs, it follows a conventional content delivery network procedure to retrieve them. In this way, if dictionaries between pairs of sending and receiving peers are out-of-sync, relevant sections are then re-synchronized on-demand. The approach does not require that libraries maintained at a particular pair of sender and receiving peers are the same. Rather, the technique enables a peer, in effect, to “backfill” its dictionary on-the-fly. On-the-wire compression techniques are provided to reduce the amount of data transmitted between the peers.
Network bandwidth conservation
A method includes determining, at a server associated with a wireless communications network, a first set of multimedia content items to be transmitted via a multimedia broadcast multicast services (MBMS) broadcast transmission to multiple devices. The first set of multimedia content items may be determined based on a data traffic profile of the wireless communication network. The server may select a particular node of the wireless communications network to transmit the first set of multimedia content items via the MBMS broadcast transmission. The method also includes determining a second set of multimedia content items to be transmitted from the selected node to a particular device via a unicast transmission. The second set of multimedia content items may be determined based on a content request profile associated with the particular device.
Robust live operation of dash
In one example, a device for receiving data related to streaming media data includes one or more network interfaces configured to send and receive data via a network, and one or more processors configured to receive, via the network interfaces, data for a first period of media content and a second period of the media content, wherein the data for the first period indicates that at least some media data of the first period is not available, and wherein the data for the second period indicates available media data for the second period, and based on the data for the first period and the second period, omitting requests for media data of the first period that the data for the first period indicates is not available and sending one or more requests for the media data of the second period.
Linking web sessions with telephone calls
A web application assigns a number that resembles a conventional telephone number and that uniquely identifies the current Web session, and injects this number into a signalling message or signalling messages that flow towards a WebRTC gateway. The WebRTC gateway inserts this number into the signalling information element that conveys Caller ID in the signalling message that it sends into the telephone network. This allows the recipient of a WebRTC call to identify the web session from which the WebRTC call originates.
Method and system for implementing integrated voice over internet protocol in a cloud-based network
A system for implementing VoIP over a cloud-based network includes a first edge proxy server operatively connected to a plurality of target proxy servers to receive resource information from one or more of the target proxy servers. Each target proxy server is associated with the cloud-based network. A first endpoint is operatively connected to the first edge proxy server and is configured for voice communications with a second endpoint. The voice communications are facilitated by the first edge proxy server using the received resource information.
System and method to provide combinational services to anonymous callers
A system and method in which a notification is received of a call from a first device to a second device in a first domain. A context is created for the first type of call. A notification is received of initiation of a call from the second device to the first device in a second domain. The call context is utilized to notify the first device of the initiation of the call from the second device to the first device.
Privacy aware camera and device status indicator system
System for policy-managed content presentation
The invention pertains to a system and method to display contextual information, including data and messaging, based on a secure, policy-managed set of instructions for selecting, distributing, and presenting information on a device. The system accepts one or more streams of contextual information in any digital form from one or more data sources. The contextual information is assessed via a set of policy instructions that may include time, location, hierarchy of ownership, type of contextual information, assessed importance of the contextual information, and display availability. Only approved contextual information is transmitted to the device for display.
Data processing device that executes virus countermeasure processing, data processing method, and recording medium storing a data processing program
A data processing device, that includes: a first storage device; and a processor configured to execute a procedure. The procedure includes: receiving write data to be written to a second storage device provided at a computer, outputting the write data to the second storage device, and duplicating and outputting the write data; executing control that writes the duplicated write data to the first storage device that is separate from the second storage device; executing virus countermeasure processing related to virus infection, on the write data stored in the first storage device; and in a case where the write data is output while executing the virus countermeasure processing, suspending the virus countermeasure processing and prioritizing execution of the control that writes the duplicated write data to the first storage device.
Social engineering simulation workflow appliance
A system for evaluating the susceptibility of an organization to social engineering, the organization having a plurality of sources and a plurality of members using electronic devices, is provided. The system includes an appliance in communication with the plurality of sources configured to retrieve contact information of members and to detect triggering events from the plurality of sources. The system includes a platform remote from the appliance configured to receive signals from the appliance indicative of the triggering events and to prepare and send communications, including templates based on each of the triggering events to the appliance. Upon receipt of the communications, the appliance is configured to retrieve the contact information of intended recipient members, to create messages based on the templates, and to send the messages to the intended recipient members. The platform does not receive the contact information of the plurality of members from the appliance.
Using new edges for anomaly detection in computer networks
Creation of new edges in a network may be used as an indication of a potential attack on the network. Historical data of a frequency with which nodes in a network create and receive new edges may be analyzed. Baseline models of behavior among the edges in the network may be established based on the analysis of the historical data. A new edge that deviates from a respective baseline model by more than a predetermined threshold during a time window may be detected. The new edge may be flagged as potentially anomalous when the deviation from the respective baseline model is detected. Probabilities for both new and existing edges may be obtained for all edges in a path or other subgraph. The probabilities may then be combined to obtain a score for the path or other subgraph. A threshold may be obtained by calculating an empirical distribution of the scores under historical conditions.
Network security system
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.
Double write data exchange in a dead drop network architecture
A sender uses a double-write protocol to pass data to a recipient using a dead drop network architecture. The sender sends, to a dead drop domain, a data payload to store at the dead drop domain, and receives payload access information corresponding to a payload dead drop where the payload data is stored. The sender sends, to the dead drop domain, one or more instances of metadata including the payload access information to store at the dead drop domain, and receives metadata access information corresponding to one or more metadata dead drops where the metadata is stored. The sender provides the metadata access information to one or more recipients. A recipient uses the metadata access information to read the corresponding metadata dead drop. The recipient then uses the payload access information from the metadata to read the payload dead drop and receive the payload data.
License management system, license management device, and computer-readable recording medium having license management program
A license management device includes a license identifier generator unit generating a license identifier and license information corresponding to a group of application programs, the license identifier associated with a group identifier of the group and the license information on the group, a group information storage unit storing the group identifier with a product identifier of each application program, a license information storage unit recording the license identifier corresponding to the group identifier with the product identifier of the application program, a determination unit determining, on receiving the license identifier associated with the application program, whether the received license identifier is recorded in the license information storage unit, and a sending unit sending via a network, if the received license identifier is recorded in the license information storage unit, a license file corresponding to the recorded license identifier to provide a permission to use the application program of the group.
Enterprise-specific functionality watermarking and management
Embodiments for enterprise-specific functionality watermarking and management are provided. A request, originated in response to an attempt to perform an enterprise function on a client device, can be received by at least one computing device over a network, where the enterprise function is associated with a remotely-stored compliance rule. At least one watermark template can be identified from a plurality of available watermark templates based at least in part on the enterprise function, and a communication can be generated that, when received by the client device, authorizes the client device to: perform the enterprise function where at least one resource is generated or modified, and apply the at least one watermark template to the at least one resource such that performing the enterprise function complies with the compliance rule.
Systems and methods for controlling content for child browser users
The disclosed computer-implemented method for controlling content for child browser users may include (1) identifying one or more indicators that a browser session user is a child, (2) calculating a session score indicating a likelihood that the browser session user is a child, (3) determining, based at least in part on the session score being above a threshold, that the browser session user is a child and therefore content controls should apply to a browser session of the child, and (4) initiating one or more content control actions. Various other methods, systems, and computer-readable media are also disclosed.
Method and apparatus for transmitting and receiving message for downloadable CAS or DRM in MMT
A method for transmitting and receiving a message for Downloadable-Conditional Access System (D-CAS) or Downloadable-Digital Rights Management (D-DRM) in Moving Picture Experts Group Media Transport (MMT) is provided. The method includes, upon receiving Composition Information (CI) from an MMT server, acquiring signaling information for D-CAS or D-DRM, which is included in the CI, acquiring, from the signaling information, an address of a server from which software of D-CAS or D-DRM is downloadable, generating a request for the software based on the signaling information, and sending the request for the software to the server address.
Social networking groups as a platform for third party integration
Exemplary methods, apparatuses, and systems receive a request from a user to access content for a group of users of a social networking system, and send the content to the user including an interface to a third party system. The interface is to enable the user to retrieve information related to a third party service from the third party system to share with the group. The user sends the information related to the third party service to share with the group to the social networking system. The social networking system sends the shared information related to the third party service to a group member based on the group member requesting access to the content. In one embodiment, the third party service stores a file or folder on a third party server and the shared information includes a link to the shared file or folder.
Temporal modification of authentication challenges
A method for authenticating a user of a computing device. The method includes a computer processor receiving an indication that a user of a computing device is accessing an object that utilizes an authentication process. The method further includes a computer processor selecting a first multi-media file that is associated with a user profile of the user and the object of the authentication process, wherein the first multi-media file is associated with a baseline user input authentication sequence. The method further includes creating a first temporal manipulation vector based on the user profile and a security requirement of the object of the authentication process, wherein the temporal manipulation vector modifies a presentation of a multi-media file and a corresponding time sequence of a user input authentication sequence in the multi-media file. The method further includes transmitting the first temporal manipulation vector and the first multi-media file to the computing device.
CAPTCHA challenge incorporating obfuscated characters
A method for determining if a user of a computer system is a human. A processor receives an indication that a computer security program is needed and acquires at least one image depicting a first string of characters including at least a first and second set of one or more characters. A processor assigns a substitute character to be used as input for each of the second set of one or more characters. A processor presents the at least one image and an indication of the substitute character and when to use the substitute character to the user. A processor receives a second string of characters from the user. A processor determines whether the second string of characters substantially matches the first string of characters based on the substitute character assigned to each of the second set of one or more characters and determines whether the user is a human.
Bundled authorization requests
A framework, which conforms to the OAuth standard, involves a generic OAuth authorization server that can be used by multiple resource servers in order to ensure that access to resources stored on those resource servers is limited to access to which the resource owner consents. Each resource server registers, with the OAuth authorization server, metadata for that resource server, indicating scopes that are recognized by the resource server. The OAuth authorization server refers to this metadata when requesting consent from a resource owner on behalf of a client application, so that the consent will be of an appropriate scope. The OAuth authorization server refers to this metadata when constructing an access token to provide to the client application for use in accessing the resources on the resource server. The OAuth authorization server uses this metadata to map issued access tokens to the scopes to which those access tokens grant access.
Method and system for authenticating a rich client to a web or cloud application
A rich client performs single sign-on (SSO) to access a web- or cloud-based application. According to the described SSO approach, the rich client delegates to its native application server the task of obtaining a credential, such as a SAML assertion. The native server, acting on behalf of the user, obtains an assertion from a federated identity provider (IdP) that is then returned to the rich client. The rich client provides the assertion to a cloud-based proxy, which presents the assertion to an identity manager to attempt to prove that the user is entitled to access the web- or cloud-based application using the rich client. If the assertion can be verified, it is exchanged with a signed token, such as a token designed to protect against cross-site request forgery (CSRF). The rich client then accesses the web- or cloud-based application making a REST call that includes the signed token. The application, which recognizes the request as trustworthy, responds to the call with the requested data.
A method can include receiving a request from a requestor to a given resource, which requestor is registered to access a set of one or more resources. The request includes a ticket that includes signature data generated by an authenticating entity in response to authenticating the requestor. The signature data may be decrypted to provide a decrypted signature. The ticket may be validated in response to the request based on evaluating the decrypted signature. A response can be provided to the requestor based on the validation, and the response can grant the requestor access to the given resource if the validation determines the ticket to be authentic and authorized for the given resource or the response can deny the requestor access to the given resource if the validation determines to reject the ticket.
Providing localized content delivery with remote token authentication
Some embodiments set forth systems and methods enabling a first network to use the resources of various second networks in order to localize delivery of the first network content from the various second networks in a secure manner. Some embodiments provide a token-based authentication scheme to ensure that any configured content access restrictions are effectuated at the first network and any of the second networks providing localized content delivery for the first network. The scheme involves a two phase user authentication, wherein the user is separately authenticated at the first network and the redirected to second network using either the same or different set of access restrictions. The first network exchanges a first encryption key with content providers for encrypting/decrypting the first access restriction and a second encryption key with a second network for encrypting/decrypting the second access restriction.
System for secure enrollment and secure verification of network users by a centralized identification service
A system and method for providing, as a service over a computer network (especially a packet-switched computer network) to a body of merchants connected to the computer network, verification of consumer identification based on data provided over the computer network by scanning devices attached to the computers operated by consumers.
Network user identification and authentication
A method of identifying and authenticating a network user includes receiving a first network layer packet from a first user entity. The first network layer packet may include first unique identification information unique to the first user entity and independent of a first network address associated with the first network layer packet. The method further includes verifying, at a network layer of a network, that the first network layer packet is from the first user entity based on the first unique identification information.
Systems, methods and devices for direct communication using a PC5 protocol
Device to device (D2D) communication can be performed with packet data convergence protocol (PDCP) based encapsulation without internet protocol (IP) addressing using a PC5 protocol (such as PC5 Signaling Protocol). The non-IP D2D PDCP-encapsulated communication can further include two forms of secure data transfer. A first non-IP D2D PDCP-encapsulated communication can be a negotiated non-IP D2D PDCP-encapsulated communication. A second non-IP D2D PDCP-encapsulated communication can be a non-negotiated non-IP D2D communication. The non-negotiated non-IP D2D PDCP-encapsulated communication can include a common key management server (KMS) version and a distributed KMS version.
Collision avoidance in a distributed tokenization environment
A client receives sensitive data to be tokenized. The client queries a token table with a portion of the sensitive data to determine if the token table includes a token mapped to the value of the portion of the sensitive data. If the mapping table does not include a token mapped to the value of the portion of the sensitive data, a candidate token is generated. The client queries a central token management system to determine if the candidate token collides with a token generated by or stored at another client. In some embodiments, the candidate token includes a value from a unique set of values assigned by the central token management system to the client, guaranteeing that the candidate token does not cause a collision. The client then tokenizes the sensitive data with the candidate token and stores the candidate token in the token table.
Masking data within JSON-type documents
A method comprising using at least one hardware processor for: receiving input from a user with respect to masking of a data element in one or more documents of a java script object notation (JSON) type, wherein the input comprises: an identifier of the data element, and one or more constraints for masking the data element based on the hierarchy of the one or more documents of the JSON-type; and generating a masking rule for the one or more documents of the JSON-type based on the input.
Mobile hotspot managed by access controller
Systems and methods are described for a mobile hotspot that can be managed by an access controller. According to an embodiment, a WAN connection is established by a mobile hotspot through a telecommunication data network via a wireless WAN module. When in a first mode, the mobile hotspot: (i) sets up a secure tunnel through the WAN connection with an AC of the enterprise that manages APs of a wireless network of an enterprise; (ii) broadcasts an SSID that is also broadcast by the APs; (iii) establishes a WLAN connection with a WiFi-enabled device based on an AP profile containing (a) authentication information regarding users approved to access the wireless network and (b) information identifying the SSID; (iv) receives WLAN traffic from the WiFi-enabled device through the WLAN connection; and (v) transmits the WLAN traffic to a server of the enterprise via the secure tunnel and the AC.
Method and apparatus for integrating security context in network routing decisions
An apparatus identifies a request from a user device to access data on a storage server. The apparatus determines a sensitivity level of response data for a response to the request, security context of the response, and a routing action to perform for the response by applying a policy to the sensitivity level of the response data and the security context of the response. The apparatus executes the routing action for the response.
A client device (6) may be connected to a network (2) through a private network and one of several connection servers (10, 11, 12, 13) associated with a router (1). In such a configuration a server (5) external to the private network cannot provide a complete routing address for data to be transmitted to the device (6), as it does not have visibility of the control processors (10, 11, 12, 13). To allow such connection to be made, when a connection request for a target client device (6) is transmitted from an external server (5) to the router (1), the router retrieves connection history of the target device (6) from each of the connection servers, and the router 1 then attempts communication with the client device 6 through the connection server (10) reporting the most recent connection.
Method, apparatus, and system for exchanging electronic business card
Embodiments of the present disclosure disclose methods, apparatuses, and systems for exchanging electronic business card. One of the methods includes: receiving a first request message sent by a first terminal, wherein the first request message includes first condition information, a first electronic business card, and first location information of the first terminal; selecting a second request message from at least one request message received during a preset period of time, according to the first location information, the first condition information, and the time when the first request message was received; sending an electronic business card corresponding to the second request message to the first terminal; and sending the first electronic business card to a second terminal, wherein the second request message was sent by the second terminal. The methods, the apparatuses, and the systems can be directed to simplify the process of exchanging electronic business cards.
User interface with recipient status indication
A method of providing a user interface with recipient status information, in one aspect, may comprise detecting a message (e.g., online message such as instant messaging, chat, etc.) being initiated by a first user to a second user; gathering information associated with the second user; analyzing the gathered information; predicting a state of the second user based on the analyzing; and determining a notification action based on the predicted state of the second user, the notification action notifying the first user of the second user's state; and presenting a notification comprising one or more of graphical, textual, auditory, or tactile indications or combinations thereof to the first user.
Method and apparatus for a non-revealing do-not-contact list system
A method and apparatus for a non-revealing do-not-contact list system in which a do-not-contact list of one-way hashed consumer contact information is provided to a set of one or more entities. The set of entities determine whether certain consumers wish to be contacted with the do-not-contact list without discovering actual consumer contact information.
User interfaces for providing supplemental contact information corresponding to a referenced individual
Providing supplemental contact information for an individual referenced in an electronic message typically includes receiving an electronic message, examining the electronic message, detecting an identifier for a referenced individual contained in the electronic message, and making supplemental contact information for the referenced individual available to a recipient of the electronic message. The supplemental contact information may include information that is in addition to information contained in the electronic message. The supplemental contact information may include at least one of an e-mail address, a screen name, a telephone number, a facsimile number, and a mailing address each of which is associated with the referenced individual.
Instant text message conductor
An instant text message conductor is provided. A server device receives an instant text message from a user entity. The instant text message is addressed to a conductor entity. It is determined that a previous instant text message from the user entity was sent to a first potential responder entity. The instant text message is sent to the first potential responder entity. The server device determines that no response to the instant text message will be received from the first potential responder entity within a first period of time. A second potential responder entity is selected from a predetermined set of potential responder entities. The previous instant text message, a first response instant text message sent by the first potential responder entity in response to the previous instant text message, and the current instant text message are sent to the second potential responder entity.
Determining transmission rates when transmitting parallel data streams from a wireless station of a wireless network
A wireless station (STA) of a wireless network transmits parallel data streams. The STA maintains transmission profiles, each corresponding to a respective data stream of parallel data streams. A transmission profile contains a set of rules or parameters, which are used for determining various characteristics in relation to transmission of packets in the corresponding data stream. The STA queues packets of each data stream in a corresponding queue. The STA selects a packet from a queue, and determines a transmission rate for the selected packet according to a transmission profile of the queue. The STA transmits the packet at the determined transmission rate. In an embodiment, the wireless network corresponds to an IEEE 802.11 network.
Integrated fibre channel support in an ethernet fabric switch
One embodiment of the present invention provides a switch. The switch includes a packet processor and a device management module. During operation, the packet processor constructs a notification message containing a Transparent Interconnection of Lots of Links (TRILL) Routing Bridge (RBridge) identifier associated with a Fiber Channel router. The device management module operates in conjunction with the packet processor and terminates TRILL forwarding for a received TRILL packet with the RBridge identifier as an egress RBridge identifier.
Method and apparatus for bandwidth adjustment in network virtualization system
A method and apparatus for bandwidth adjustment in a network virtualization system is described herein. The network virtualization system includes a central module and m remote modules, where the m remote modules are connected to a physical interface of the central module by n PWs. The method includes: acquiring, from the m remote modules, a real-time bandwidth of each PW of the n PWs; when a sum of the acquired real-time bandwidths of the n PWs is greater than a bandwidth of the physical interface, adjusting configured bandwidths of P PWs; and separately sending values of adjusted configured bandwidths of the P PWs to the remote modules separately connected to the P PWs.
Very high speed cable modem for increasing bandwidth
A system for increasing bandwidth to a communication device, comprising:a packet scheduler; and a transmitter; the system configured to operate the packet scheduler to schedule packets of a service flow onto multiple media access control (MAC) channels forming a MAC channel group before operating the transmitter to send the scheduled packets from an origination device toward a destination device, the packet scheduler waiting a maximum group cross channel skew time for an out-of sequence packet, the maximum group cross channel skew time a maximum of multiple pair cross channel skew times, one pair cross channel skew time associated with each pair grouping of MAC channels configured to be formed from the MAC channel group; and the system configured with a setting to allow only a single channel of the multiple channels of the MAC channel group to carry DOCSIS messages, and to override the setting to share at least some of the channels of the MAC channel group among multiple cable modems while the MAC channel group forms a bonded channel.
Network system, method of controlling thereof, network control apparatus, and non-transitory computer-readable recording medium having stored therein control program thereof
A network system includes a transmitting/receiving apparatus, a plurality of switches, and a network control apparatus. The switch includes a first packet transmission control unit and a second packet transmission control unit. The network system includes a first packet transmission control area according to the first packet transmission control unit, and a second packet transmission control area according to the second packet transmission control unit. A switch in the first packet transmission control area includes a first storage unit which stores a plurality of pieces of first rule information informed from the network control apparatus, applies a mask to a predetermined position of header information of an input packet according to the number of the plurality of pieces of first rule information, and controls the input packet according to the first rule information selected from the first storage unit based on the header information after masking.
Providing differentiated service to traffic flows obscured by content distribution systems
A system for providing differentiated services to traffic flows of a content distribution network is disclosed. In particular, the system may include determining if a first portion of an internet protocol address associated with a traffic flow includes an identifier for a node in the content distribution network by comparing the identifier to a set of prefixes for the content distribution network. Additionally, the system may include determining if a second portion of the internet protocol address matches a unique host address specified by the content distribution network for a customer of the content distribution network. If a rule for providing a differentiated service exists for the customer, the first portion is in the set of prefixes, and the second portion matches the unique host address specified for the customer, the system may provide the differentiated service for the traffic flow.
Migration of virtual machine based on proximity to peripheral device in NUMA environment
In one embodiment, a system includes a device and first and second processors. The first and second processors are configured to access first information. The first information includes a first parameter and a second parameter. The first parameter is associated with a position of the device relative to the first processor. The second parameter is associated with a position of the device relative to the second processor. The system is configured to access second information associated with a virtual machine. The virtual machine is configured to run on a host operating system. The virtual machine includes a guest operating system configured to communicate with the device. The system is also configured to automatically select the first processor based at least on the first information and the second information and to associate the virtual machine with the first processor in response to automatically selecting the first processor.
Systems and methods for dynamically adjusting QoS parameters
A method for dynamically adjusting QoS parameters associated with a virtual circuit is disclosed. The virtual circuit includes a first end connected to a first router and a second end connected to a second router. The method includes receiving an offer message at the second router, and sending a request message to the first router. The offer message includes a first set of QoS parameters and the request message includes a second set of QoS parameters. The method further includes receiving a request confirmation message at the second router, receiving a new offer message at the second router, and sending information compliant with the second set of QoS parameters to the first router. The new offer message includes the second set of QoS parameters.
Transfer device, control device, and transfer method
A transfer device in a network including a plurality of control devices includes a network connection device, memory, and a processor. The network connection device communicates a target packet as a target of a transferring process. The memory stores a transfer rule received by the network connection device from a determination device as a control device for determining a transfer rule indicating a method of a process performed by the transfer device. The processor judges whether or not disable information indicating that the transfer rule is not to be acquired from the determination device when a transfer rule applicable to the target packet is not stored in the memory is included in the target packet. When the disable information is included, the processor outputs the target packet to the network connection device without requesting the transfer rule. The network connection device transmits the target packet to another transfer device.
Service plan based flow control
Systems and methods are provided to achieve traffic flow control in accordance with traffic priority as well as service plan considerations. A weight for flow control and a per service plan minimum flow control meter (FCM) can be defined for different throttle rates for different service plans. An FCM value based upon traffic priority can be converted to a per service plan group FCM value so that each service plan can be assigned/configured with its own FCM for each uplink queue. An average throttled data rate is then calculated to determine whether the traffic in a particular gateway is under or over throttled based on the current per service plan FCM with current input data rates. The per service plan FCM can then be revised for use by an Internet Protocol Gateway sending traffic to a Satellite Gateway.
System and method for reporting out-of-resources (OOR) conditions in a data network
A system and method for advertising out-of-resources (OOR) conditions for entities, such as nodes, line cards and data links, in a manner that does not involve using a maximum cost to indicate the entity is “out-of-resources.” According to the technique, an OOR condition for an entity is advertised in one or more type-length-value (TLV) objects contained in an advertisement message. The advertisement message is flooded to nodes on a data network to inform them of the entity's OOR condition. Head-end nodes that process the advertisement message may use information contained in the TLV object to determine a path for a new label switched path (LSP) that does not include the entity associated with the OOR condition.
Periodic advertisements of host capabilities in virtual cloud computing infrastructure
The present disclosure describes a distributed, advertisement-based, solution for scheduling virtual resources in cloud infrastructures such as the OpenStack. The scheduling algorithm distributes the scheduling requirements and host state feasibility checks to the individual hosts in the datacenter, which can periodically send a summarized advertisement to the scheduler controller listing the number of instances of different type(s) of virtual resources that a particular host can support. The scheduler controller, thus no longer has to compute and maintain individual host states, and the scheduling problem is reduced to selecting the feasible advertisements that satisfy a given request. The solution can be extended to a scenario of multiple scheduler controllers using the same distributed, advertisement-based, approach.
Forwarding messages within a switch fabric of an SDN switch
A Software-Defined Networking (SDN) switch that includes external network ports for receiving external network traffic onto the SDN switch, external network ports for transmitting external network traffic out of the SDN switch, a Network Flow Switch (NFX) integrated circuit that has multiple network ports and that maintains a flow table, another NFX integrated circuit that has multiple network ports and that maintains a flow table, and a Network Flow Processor (NFP) circuit that maintains a flow table. The NFP circuit couples directly to a network port of the first NFX integrated circuit but does not couple directly to any network port of the second NFX integrated circuit. The NFP circuit sends a flow entry to one NFX integrated circuit along with an addressing label and the NFX integrated circuit uses the addressing label to determine that the flow entry is to be forwarded to the second NFX integrated circuit.
Inter-domain network tenant identifier
In one embodiment, a method includes receiving a packet at a tunnel end point in a multi-tenant network, the packet comprising a destination, performing a lookup for the destination in a database comprising a mapping of global identifiers to local tenant identifiers for different hosting locations, each of the global identifiers uniquely identifying a tenant across all of the hosting locations, identifying a destination tunnel end point and a local tenant identifier for the destination, and inserting the destination tunnel end point and the local tenant identifier into the packet and forwarding the packet. An apparatus and logic are also disclosed herein.
Generation and use of a user equipment location distribution in a wireless communication network
Methods, apparatuses, and systems are described related to generating and using a user equipment (UE) location distribution in a wireless communication network. In embodiments, an evolved Node B (eNB) may determine an angle of arrival (AoA) and a timing advance (Tadv) for individual UEs of a plurality of UEs that are in a connected mode with the eNB. The eNB may assign the individual UEs to one of a plurality of bins to generate a UE location distribution. Individual bins of the plurality of bins may correspond to a range of values for the AoA and a range of values for the Tadv to indicate a physical location of the corresponding UEs. The eNB may transmit the UE location distribution to a network management entity, which may adjust one or more parameters of the eNB, based on the UE location distribution, using a capacity and coverage optimization (CCO) function.
Methods, systems, and computer readable media for implementing intelligent policy and charging rules function (PCRF) overload control
The subject matter described herein includes methods, systems, and computer readable media for implementing intelligent PCRF overload control. A method may be performed at a Diameter Routing Agent (DRA) including at least one processor. The method includes receiving an indication of a first overload level for at least a first PCRF of a plurality of PCRFs and determining, from the first overload level, a first routing rule for routing message traffic to the first PCRF. The method further includes receiving message traffic requiring processing by the first PCRF and performing a first action specified by the first routing rule to accept the message traffic, reject the message traffic, or send a response on behalf of the first PCRF.
System and method for reducing traffic loss while using loop free alternate routes for multicast only fast reroute (MoFRR)
A system, method and apparatus for adapting operation of a router configured to receive commonly sourced traffic via primary and secondary Upstream Multicast Hop (UMH) links, wherein the secondary path is cached for a predetermined period of time to avoid data loss upon restoration of the primary path.
Centrally optimized variable length coding for source routed multicast
A system, controller and method having centrally optimized coding for a source routed forwarding based multicast network. The network comprises a plurality of nodes configured to transfer data packets to one another via a plurality of links. A controller is configured to control each of the nodes, and is configured to control forwarding of the data packets by establishing a header for each flow. The header defines a path for the flow of the data packets from a source to multiple destinations, wherein the length of the header is a function of the nodes and the branches in the path. The multicast path is represented as a header that consists of codewords representing interfaces, links and instructions. Some of the codewords are assigned different lengths in order to reduce the size of the header. Other codewords have a fixed size comprising a bit field.
Database protocol for exchanging forwarding state with hardware switches
Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network.
Dragonfly plus: communication over bipartite node groups connected by a mesh network
A communication network includes multiple nodes, which are arranged in groups such that the nodes in each group are interconnected in a bipartite topology and the groups are interconnected in a mesh topology. The nodes are configured to convey traffic between source hosts and respective destination hosts by routing packets among the nodes on paths that do not traverse any intermediate hosts other than the source and destination hosts.
System and method for enabling conversational learning in a network environment
A system and a method for providing conversational learning is implemented in a network environment. An exemplary method includes receiving a subnet route advertisement that includes an attribute that triggers glean behavior for routing decisions; and installing a subnet entry in a Forwarding Information Base/Adjacency (FIB/ADJ) table. The subnet entry includes a subnet associated with the subnet route advertisement and a corresponding glean adjacency. The corresponding glean adjacency is configured to trigger installation of a host entry associated with a host in an active conversation in a network.
Auto tunneling in software defined network for seamless roaming
A software defined network controller detects when a host has moved between network elements in a network. The controller generates a list of network elements to which the host has roamed, the list being sorted by time when the host is attached to a network element so that a most recent network element to which the host is attached is the root network element and at a head of the list. The controller updates the root network element in the list first for traffic flow associated with the host. The controller sends commands to the network elements to program a tunnel from each previous point of attachment network element in the list to the most recent root network element in the list in reverse order of the roaming path so as to route traffic for the host via a tunnel.
Method and an apparatus for network state re-construction in software defined networking
Techniques are disclosed for re-construction and tracking of a forwarding state of a network device in communication with a network controller in a Software Defined Network (SDN). The techniques include receiving control messages, where the control messages are messages transmitted from a network controller to a network device. The techniques further includes extracting a subset of control messages from the control messages, where each control message from the subset of control messages caused a change in a forwarding state of the network device; generating, based on the extracted subset of control messages, a directed graph, wherein the directed graph is representative of the forwarding state of the network device; and causing the directed graph to be displayed on a display device.
Specializing virtual network device processing to avoid interrupt processing for high packet rate applications
A method of high packet rate network processing in a system that includes a physical host and a set of physical network interface controllers (PNICs). The physical host is hosting a set of data compute nodes (DCNs). Each DCN includes a virtual network interface controller (VNIC) for communicating with one or more PNICs to exchange packets. The method determines that a rate of packets received from a particular DCN at the VNIC of the particular DCN exceeds a predetermined threshold. The method performs polling to determine the availability of packets received at the VNIC from the particular DCN while the rate of packets received from the DCN at the VNIC is exceeding the threshold. The method utilizes interrupts to determine the availability of packets received at the VNIC from the particular DCN while the rate of packets received from the DCN at the VNIC does not exceed the threshold.
Datacenter health analysis using DNS switching
Technologies are generally described for monitoring application health in datacenters through load rebalancing. In some examples, a domain name server (DNS) module may cyclically vary load provided to an application instance. A monitoring module may then measure application output data and/or parameters associated with the processing of the load by the application based on a difference or a comparison between parts of the cyclical load variation. The monitoring module may use the measured data/parameters to both determine the health of the application instance and to cause the DNS module to adjust the periodic variation of the load.
System and method for diagnostic packet identification
A system and method for handling packets includes receiving the packets at a layer 3 handler in a network device, determining whether the packets are diagnostic packets by examining bit patterns of the packets, determining whether an application in the network device can handle the diagnostic packets when the packets are the diagnostic packets, delivering the diagnostic packets to the application for handling when the application in the network device can handle the diagnostic packets, receiving response packets from the application, and transmitting the response packets. In some embodiments, the bit patterns include a reserved bit of an IP header that is set to one when the packets are the diagnostic packets. In some embodiments, application packets and the diagnostic packets include a same source IP address, a same destination IP address, a same source port, and a same destination port.
System and method of network diagnosis
Embodiments provide systems and methods for diagnosing a network and identifying problems in a network which reduce the data transfer rate of data through the network. One embodiment of a method for network diagnosis may include infusing data into a network upstream and downstream of a portion of the network relative to a library drive, querying the drive at intervals over time for drive data to determine the data transfer rate at the drive and comparing the data transfer rate of the data infused upstream of the device or network portion with the data transfer rate of the data infused downstream of the device or network portion to determine throughput. By comparing the data transfer rate of data infused upstream and downstream of a network device or network portion, problem devices in a network may be identified.
Client-independent network supervision application
A network monitoring and control application suitable for use by teachers and other users is implemented using wireless access points and does not require specific software to be installed on client network devices. The application uses student and class information to organize network client information. Upon receiving a monitoring request, one or more classes assigned to the teacher are identified by accessing class data. Class data is accessed to identify students assigned to the class and the client network devices used by these students. One wireless access point providing wireless network connections to at least a portion of the students' devices is selected to collect network activity information from the students' devices and presents this information to the teacher. The teacher may also use the selected wireless access point to disable students' network access or to redirect students' devices to a network resource.
Methods and systems for enhanced round trip time (RTT) exchange
Disclosed are systems, methods and devices for obtaining round trip time measurements for use in location based services. In particular implementations, a fine timing measurement request message wirelessly transmitted by a first transceiver device to a second transceiver device may permit additional processing features in computing or applying a signal round trip time measurement. Such a signal round trip time measurement may be used in positioning operations.
Methods, systems, and computer readable media for one-way link delay measurement
A method for measuring one-way link delay includes transmitting a first packet from a first network device. The first packet is passively intercepted, a first copy of the first packet is transmitted to the first network device, and a second copy of the first packet is transmitted to a second network device. A time of receipt of the first copy of the first packet is recorded as an origin timestamp at the first network device. A time of receipt of the second copy of the first packet is recorded as a receive timestamp at the second network device. A second packet including the origin timestamp is transmitted from the first network device. The second packet is passively intercepted, and a first copy of the second packet is transmitted to the second network device. The first copy of the second packet is received at the second network device, and the origin timestamp is extracted from the first copy of the second packet. Link delay from the first network device to the second network device is calculated using the origin timestamp and the receive timestamp.
Method and apparatus for learning online state of terminal
A method and an apparatus for learning an online state of a terminal are provided. In the embodiments of the present invention, when an online state of a terminal needs to be reported to a network side, the terminal sends a first message to a core network management entity, where the first message includes first indication information, so that the core network management entity sends the first indication information to a proxy server, and thereby the proxy server learns an online state of an application on the terminal, so as to avoid that an online state, of the application on the terminal, saved in the proxy server is incorrect.
Method of measuring interference
A method of measuring interference to perform efficient data communication is disclosed. A method of measuring interference of neighboring cells comprises allocating one or more first resource elements, to which pilot signals are allocated, to predetermined symbol regions included in a first resource block; allocating one or more second resource elements for measuring interference of the neighboring cells to a first symbol region of the predetermined symbol regions; and measuring interference of the neighboring cells using the one or more second resource elements.
Methods, systems, and computer readable media for performing diameter overload control
According to one aspect, the subject matter described herein includes a system for performing Diameter overload control. The system occurs at a Diameter routing node. The system includes a network interface for receiving a Diameter message. The system also includes a Diameter overload control unit configured to detect an overload condition for a Diameter session associated with the Diameter message and to communicate an indication of the overload condition to a second Diameter node using a Diameter message defined for a purpose other than overload control.
Secure cloud fabric to connect subnets in different network domains
A secure virtual network platform connects two or more subnets in different or separate network domains. The secure virtual network can use the under layer physical networks in various domains as an IP forwarding fabric without changing any existing firewalls, security settings, or network topology. A first type of connection across the virtual network involves connecting server groups. A second type of connection across the virtual network involves connecting a server group to a physical network. A third type of connection across the virtual network involves connecting a physical network to another physical network.
Cloud models based on logical network interface data
Examples relate to cloud models based on logical network interface data. Some examples disclosed herein may enable obtaining first cloud definition data that describes a first cloud infrastructure. The first cloud definition data may comprise logical network interface data that describes a first set of network interfaces to be bonded to form a first logical network interface for the first cloud infrastructure. Some examples further enable generating a first cloud model based on the first cloud definition data. The first cloud model may comprise first cloud configuration data that, when executed, causes the first cloud infrastructure to be deployed. Some examples further enable storing a first checkpoint image of the first cloud model. The first checkpoint image may comprise at least a portion of the first cloud configuration data.
Method and device for updating client
Embodiments of the present application relate to a method for updating a client, a device for updating a client, and a computer program product for updating a client. The method includes determining whether the client is to be updated, in the event that the client is to be updated, determining update packages for the client, determining a user's preferred functions from among functions offered by the client based on saved record of operations of the user corresponding to the client, determining update packages, from among the determined update packages, on which the user's preferred functions depend to serve as preferred packages, and releasing the preferred packages to the client to be updated.
Bifurcated control and management planes for fiber channel networks
Techniques are provided for bifurcating database information that might otherwise be replicated on each switch in a switched fabric of a Storage Area Network (SAN). The database is divided into a control plane database that comprises mostly switch specific data and a central management database that comprises user device configurations and device profiles. The control plane database includes information such as name server and zone server information, for those devices that may locally log into the switched fabric via a given switch, and those remote devices that are zoned with those local devices and that may log into the switched fabric via another switch. The central management database includes global information for the switched fabric and device profile information (e.g., login interface, Virtual SAN membership, device aliasing, etc.) for devices that have access to the switched fabric and that can also be requested by the various switches in the switched fabric.
Distributed processing system
There is provided a distributed processing system including: a data store server for storing data; a data store part for storing data in the data store server; a data acquisition part for obtaining data from the data store server; and an operation manager part for performing configuration change on the whole system. The distributed processing system has a function of managing the configuration content and the configuration order for each device according to the change content, to determine the target and order to be configured based on the managed information by the operation manager part. Further, the distributed processing system has a function of performing a configuration change process on the data store part, the data acquisition part, and the data store server by the operation manager part.
Initializing a network interface based on stored data
In accordance with some embodiments of the present disclosure, a method for initializing a network interface comprises monitoring a stream of data sent to a network interface and determining that a provisioning update for the network interface is complete. The method may further comprise sending provisioning data to a local file of the network interface, storing the provisioning data in the local file, and initializing an interface control module of the network interface based on the provisioning data stored in the local file.
Dual-mode non-return-to-zero (NRZ)/ four-level pulse amplitude modulation (PAM4) receiver with digitally enhanced NRZ sensitivity
A four-level pulse amplitude modulation receiver has a four-level pulse amplitude modulation mode and a non-return-to-zero modulation mode. First, second, and third four-level pulse amplitude modulation samplers are coupled to an input. Each of the samplers has a corresponding output in turn including a corresponding binary decision of the first, second, and third samplers. A four-level pulse amplitude modulation decoder circuit has inputs coupled to the outputs of the samplers. The four-level pulse amplitude modulation decoder circuit is active in the four-level pulse amplitude modulation mode. The receiver also includes a non-return-to-zero majority voting circuit coupled to the outputs of the samplers. The non-return-to-zero majority voting circuit has an output and is configured to output a majority decision of the corresponding binary decisions of the samplers, and is active in the non-return-to-zero modulation mode.
Sign-based adaptive control with automatically-selected filter patterns
A method of selecting filter patterns is provided. The method may include measuring an average sign value of aggregate inter-symbol interference (ISI) for a data sequence using multiple filter pattern combinations of multiple filter patterns; estimating a first analog level of aggregate ISI for a first filter pattern based on a first average sign value, and a second analog level of aggregate ISI for a second filter pattern based on a second average sign value; estimating an analog level of individual ISI of the first filter pattern pair based on the first analog level and the second analog level; estimating, for each possible filter pattern combination, an analog level of aggregate ISI for the first filter pattern pair; and selecting a filter pattern combination for the first filter pattern pair that reduces the analog level of aggregate ISI.
Dynamic allocation and virtualization of network resources in the access network and in customer networks
A method of dynamically allocating network resources in an access network and a customer network includes: determining, by a control unit, positions of all users of the customer network; bringing, by the control unit, the customer network and/or a component of the customer network into a first predefined state, based on determining that no user of the customer network is checked in to the customer network; and reallocating, by the control unit, an access port of an access multiplexer assigned to the customer network to an access network resource pool, based on determining that no user of the customer network is checked in to the customer network.
Systems and methods for providing multicast routing in an overlay network
An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.
Management control method, apparatus, and system for virtual machine
A security control platform receives a virtual machine starting request message that is from user equipment and forwarded by a management platform, where the virtual machine starting request message includes an identifier of a virtual machine that needs to be enabled and user information; invokes a third-party trusted platform to determine that the virtual machine starting request message is initiated by the user equipment according to an instruction of an authorized user; and performs authentication on the user information, and based on successful authentication, invokes the third-party trusted platform to decapsulate the virtual machine that needs to be enabled. It is ensured that other user equipment (including the management platform) cannot obtain a key of the third-party trusted platform, which enhances security of management control on the virtual machine, and thereby enhances security of a cloud computing platform.
A method in a first entity for authenticating itself to a second entity by proving to the second entity that it is in possession of a full secret without sending the full secret to the second entity, the method comprising: receiving in the first entity an input from a user, the full secret having been divided into at least a first factor and a second factor and the input relating to the second factor of the full secret; reconstructing in the first entity the full secret from at least the first factor and the input; and carrying out a calculation in the first entity using the reconstructed full secret and sending the results of the calculation to the second entity, wherein the results provide an input to a pairing calculation in the second entity.
Re-encrypted data verification program, re-encryption apparatus and re-encryption system
In a decryption apparatus according to an embodiment, a holding device pre-holds a verification formula. A determination device performs a calculation based on the verification formula read from the holding device by substituting, into the verification formula, the part of the re-encrypted data received from a re-encryption apparatus and the public key of a re-encryption key generation apparatus and the private key of the decryption apparatus, to determine whether or not the verification formula holds true. An output device outputs verification success when a result of the determination indicates that the verification formula holds true.
Method and apparatus for disabling algorithms in a device
An apparatus for enabling removal or disabling of weak algorithms may include a processor and memory storing executable computer program code that cause the apparatus to at least perform operations including receiving an indication of one or more algorithms utilized by a communication device. The computer program code may further cause the apparatus to determine whether one or more of the algorithms are identified as a weak algorithm. The computer program code may further cause the apparatus to enable provision of a message to the communication device instructing the communication device to remove, disable, or assign at least one condition to at least one detected weak algorithm among the algorithms. Corresponding methods and computer program products are also provided.
QKD key management system
A system for securely moving data from one location to another exchanges key material between the locations. The system enables cryptosystems to use key material distributed over a quantum channel.
Network equipment and authentication and key management method for same
Provided is a network equipment and an authentication and key management method for the same. The network equipment generates a Network Key (NK); the network equipment performs authentication protocol interaction with opposite communication equipment, and calculates a Basic Session Key (BSK) according to parameters for the authentication protocol interaction and the NK; and the network equipment calculates link Encryption Keys (EKs) used respectively for Media Access Control (MAC) and Physical (PHY) layers using various access technologies according to the BSK, and provides the EKs for respective MAC and PHY layer function modules. With the disclosure, the legality of the equipment is verified by performing an authentication process on the heterogeneous network equipments in one pass, and keys in various MAC layer technologies are managed in a unified way.
Low-power phase interpolator with wide-band operation
An example clock delivery system includes a phase-locked loop (PLL) configured to generate a plurality of input clocks, a phase interpolator configured to receive the plurality of input clocks and generate a plurality of output clocks, and a clock data recovery (CDR) circuit configured to receive the plurality of output clocks. The phase interpolator includes a decoder having a plurality of inputs configured to receive binary codes and a respective plurality of outputs configured to output thermometer codes, and a mixer circuitry segmented into a plurality of unit circuits that are enabled or disabled based on bits of the thermometer codes.
Phase interpolator calibration
System, method and computer program product for setting phase control codes to (in-phase) I and (quadrature) Q rotators to a first code pair, different by enough to produce a phase difference between the rotator outputs sufficient to be detected with minimal error by a phase-to-voltage converter. Auxiliary trim DACs are then adjusted according to calibration logic until a comparator output detects a phase difference between the I and Q rotators are within tolerable limits. The resulting trim codes are stored for both the codes in the pair. These trim codes along with the main codes are subsequently applied whenever the codes are used thereafter. These steps are repeated with each successive code pair having the same separation as the first code pair, e.g. both incremented by same amount until all codes have been calibrated. In this manner having the phase separation between all code pairs forced to the same value.
Dual path source synchronous interface
A dual path source synchronous interface is disclosed. In one embodiment, a source synchronous interface includes a transmitter coupled to serially receive data from a first functional circuit block, and a receiver coupled to provide data serially to a second functional circuit block. Data is conveyed to the transmitter on a single signal line, and similarly, from the receiver on another single signal line. The transmitter is coupled to the receiver by two signal lines. The serial data received by the transmitter may be separated into two streams of alternating bits, e.g., a first bit is transmitted on one signal line, the next bit is transmitted on the other signal line, and so forth. At the receiver, the alternating bit streams may be re-combined into a single bit stream for transfer to the second functional circuit.
Method and apparatus for transmitting and receiving MCS index for 256QAM in wireless access system
A method is provided for decoding data in a wireless access system. A user equipment (UE) receives a higher layer signal including an indication that 256 quadrature amplitude modulation (256 QAM) is to be enabled. The UE further receives, via a physical downlink control channel (PDCCH), downlink control information (DCI) including an index field representing a modulation and coding scheme (MCS). The UE also receives data via a physical downlink shared channel (PDSCH) scheduled by the PDCCH, and decodes the received data using the MCS represented by the index field. The UE has a first MCS index table supporting up to 64 quadrature amplitude modulation (64 QAM) and a second MCS index table supporting up to the 256 QAM.
Method for base station to mulitiplex downlink control channel in wireless communication system and apparatus therefor
Disclosed is a method for a base station to transmit a downlink control channel in a wireless communication system. Specifically, the method comprises the steps of: separating each resource block, of which there are at least one, into a preconfigured number of subsets; structuring basic resource allocation units for an downlink control channel as one of the subsets comprised in one or more resource blocks; configuring the basic resource allocation units, the number of which correspond to the aggregation level of the downlink control channel, as transmission resources; and using the transmission resource to transmit the downlink control channel to a terminal.
Method and system for high-throughput and low-power communication links in a distributed transceiver network
A device comprises a plurality of distributed transceivers, a plurality of distributed beamformers, a baseband processor, and a network management engine. The distributed transceivers perform beamforming in a radio frequency band. The distributed beamformers, however, performs beamforming in an intermediate frequency band. Each of the distributed transceivers is coupled to a corresponding one of the distributed beamformers. Each transceiver-beamformer pair is coupled to the baseband processor utilizing a same communication medium such as a cable. For transmission, a data stream generated at baseband is converted to intermediate frequencies. With a low-power transmission, the distributed beamformers transmit the data stream wirelessly in the intermediate frequencies to a receiving device. With a normal-power transmission, the distributed transceivers transmit the data stream to the receiving device in the radio frequency band. The transceivers and the beamformers are turned OFF whenever not being used. A high-throughput communication link may be established through resource sharing.
Receiving unit in a wireless communication network and method for generating an automatic repeat request feedback message
The invention relates to a receiving unit in a wireless communication network comprising a processing unit being configured to generate Automatic Repeat request (ARQ) feed-back messages for acknowledgement or negative acknowledgement of received data units in a wireless communication channel. In order to avoid signalling overhead, it is proposed that said processing unit is further configured to delay the generation of Automatic Repeat request (ARQ) feedback messages until the processing unit has recognized irregularities in the data transmission or until the number (C) of delayed Automatic Repeat request (ARQ) feedback messages has reached a threshold value.
Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems
Systems and methods for decoding block and concatenated codes are provided. These include advanced iterative decoding techniques based on belief propagation algorithms, with particular advantages when applied to codes having higher density parity check matrices such as iterative soft-input soft-output and list decoding of convolutional codes, Reed-Solomon codes and BCH codes. Improvements are also provided for performing channel state information estimation including the use of optimum filter lengths based on channel selectivity and adaptive decision-directed channel estimation. These improvements enhance the performance of various communication systems and consumer electronics. Particular improvements are also provided for decoding HD radio signals, satellite radio signals, digital audio broadcasting (DAB) signals, digital audio broadcasting plus (DAB+) signals, digital video broadcasting-handheld (DVB-H) signals, digital video broadcasting-terrestrial (DVB-T) signals, world space system signals, terrestrial-digital multimedia broadcasting (T-DMB) signals, and China mobile multimedia broadcasting (CMMB) signals. These and other improvements enhance the decoding of different digital signals.
Enhanced signal integrity and communication utilizing optimized code table signaling
In various embodiments, a computer-implemented method for optimized data transfer utilizing optimized code table signaling is disclosed. In one embodiment, a computer-implemented method comprises receiving, by a processor, a digital bit stream and transforming, by the processor, the digital bit stream to an encoded digital bit stream. The encoded digital bit stream comprises at least one of a gateway channel, a composite channel, or a data channel, and any combination thereof. The computer-implemented method further comprises providing, by the processor, the encoded digital bit stream to a transmission system for transmission and establishing, by the processor, signal integrity by utilizing pre-coordinated, pre-distributed information to limit the transmission to an intended sender-receiver pair. The intended sender-receiver pair comprises the pre-coordinated, pre-distributed information.
High speed uplink control channels
Methods and network entities for communicating control signalling for an uplink high speed data service, a downlink high speed data service or both over a radio interface of a cellular network.
Variable code rate transmission
An integrated circuit device includes an output buffer circuit that provides a first output having a first code rate. The first output is provided in response to a first indication of a change in a parameter that affects an error rate of the first output. The first output includes redundant information. The output buffer circuit provides a second output having a second code rate. The second output is provided in response to a second indication of the second output having an error rate that is different than the error rate of the first output. The second code rate of the second output is different than the first code rate.
Data processing method, precoding method, and communication device
An encoder outputs a first bit sequence having N bits. A mapper generates a first complex signal s1 and a second complex signal s2 with use of bit sequence having X+Y bits included in an input second bit sequence, where X indicates the number of bits used to generate the first complex signal s1, and Y indicates the number of bits used to generate the second complex signal s2. A bit length adjuster is provided after the encoder, and performs bit length adjustment on the first bit sequence such that the second bit sequence has a bit length that is a multiple of X+Y, and outputs the first bit sequence after the bit length adjustment as the second bit sequence. As a result, a problem between a codeword length of a block code and the number of bits necessary to perform mapping by a set of modulation schemes is solved.
Method and apparatus to control interference in multi-hop network and relay node and node pair using the method
A method and apparatus to control interference in a relay node are provided and include simultaneously receiving a symbol from source nodes, adjusting channel coefficients; and relaying the symbol to destination nodes with adjusted channel coefficients. The simultaneously receiving and the relaying are performed during a symbol transmission process between the source and destination nodes.
Methods and apparatus for employing different capabilities for different duplexing modes
Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.
Radio frequency receiver and receiving method
The present invention discloses a radio frequency receiver and a receiving method, where the method includes: performing band splitting on a radio frequency signal of multiple carriers to obtain at least one band signal, and outputting the signal; separately performing filtering and amplification processing on the at least one band signal to obtain at least one processed signal; generating multiple oscillation signals; and selectively receiving a processed signal, of the at least one processed signal, that includes a target carrier; receiving an oscillation signal corresponding to the target carrier; selectively selecting a frequency division ratio from multiple frequency division ratios; using the frequency division ratio to perform frequency division on the received oscillation signal to obtain a local oscillator signal; using the local oscillator signal to perform frequency mixing on the received processed signal that includes the target carrier to obtain a mixed signal.
Method and apparatus for spectral stitching discontinuous spectra using reference channel, pilot tones and comb signal
A system and method sequentially measure the amplitude and phase of a signal in each of two or more noncontiguous spectrum segments (e.g., harmonics) which each include two or more portions which together span the spectrum segment, using a local oscillator (LO) signal whose frequency and phase change for each measurement. The measured phase of the signal for at least one of the portions in each spectrum segment is adjusted to account for the change of phase in the LO signal from measurement of one portion to another, using phases of one or more pilot tones measured in each portion. The phase-adjusted measurements of the output signal in the various portions are stitched together to determine the amplitude and phase of the output signal across the spectrum segment. The phase relationships between the spectrum segments are determined from phases of comb teeth of a comb signal measured in each spectrum segment.
Controlling audio signals
One or more embodiments describe controlling audio signals at a user device during a communication session between the user device and a remote node, in which a primary audio signal is received at audio input means of the user device for transmission to the remote node in the communication session. It is determined whether the user device is operating in a first or a second mode. In dependence upon determining that the user device is operating in the first mode, the secondary audio signals are selectively suppressed from being output from the user device during the communication session.
System and method for distortion correction in phase-encoded photonic links
A phase-modulated optical link and methods are provided to suppress distortions in phase-encoded analog photonic links. The phase-modulated optical link includes a distortion compensation element. The distortion compensation element includes an optical comb generator that is seeded by a phase-encoded optical signal. The methods include generating an optical comb seeded by a portion of a phase-encoded optical signal and isolating desired peaks to be combined with a separate portion of the phase-encoded optical signal.
Apparatus for receiving and transmitting optical information
An apparatus for transmitting information using a visible light includes at least three light emitting devices, each being installed based on a predetermined interval and direction, and a data transmitting unit to transmit data by controlling the at least three light emitting devices.
Apparatus for monitoring optical signal to noise ratio, transmitter and communication system
Embodiments provide an apparatus for monitoring an optical signal to noise ratio (OSNR), a transmitter and a communication system. The apparatus for monitoring optical signal to noise ratio includes: a signal extracting unit and a signal processing unit. The signal extracting unit is configured to extract pilot signals and non-pilot signals at two polarization states from received signals, frequencies of the pilot signals at the two polarization states being different, and the polarization states being differentiated by the frequencies of the pilot signals; and the signal processing unit is configured to obtain OSNRs at the two polarization states by using the pilot signals and the non-pilot signals extracted by the signal extracting unit. With the embodiments of the present disclosure, by making the frequencies of the pilot signals at different polarization states be different, OSNRs at different polarization states may be obtained more accurately.
Cable having a spare signal line for automatic failure recovery
A method and apparatus are provided for detecting and recovering from a damaged signal line in a communication cable. Signals are transmitted over a first plurality of signal lines within the cable from a first end, signals are transmitted over a second plurality of signal lines within the cable from the second end, and the quality of signals received on each of the first plurality of signal lines at the second end of the cable are monitored. A first one of the first plurality of signal lines that is not providing a signal of a predetermined minimum quality is identified, the identified first signal line is automatically switched out for a first spare signal line within the cable, and one of the second plurality of signal lines that is logically associated with the identified first signal line is automatically switched out for a second spare signal line within the cable.
Optical transmission system and optical transmission device
An optical transmission system includes: a first optical transmission device configured to transmit measurement light to an optical transmission line on a first direction; and a second optical transmission device configured, when an optical transmission characteristic is measured, to loop-back the measurement light received from the first optical transmission device through an optical transmission line on the first direction and to transmit the measurement light to the first optical transmission device through an optical transmission line on a second direction, wherein, when the optical transmission characteristic is measured, the first optical transmission device receives the measurement light loop-backed by the second optical transmission device and measures the optical transmission characteristic between the first optical transmission device and the second optical transmission device.
Protection for optical transport network using operational status of dual homed attachment circuits
For protecting traffic from a source client entity (CE1) to a destination client entity (CE2) via an optical transport network and attachment circuits at ingress (A,B) and egress (C,D) nodes, there are multiple paths within the OTN, and the attachment circuits are dual homed. By sending (120) an indication of operational status of the dual homed attachment circuits within overhead associated with the traffic and sent with the traffic through the network, a selection can be made (130) of which of the provided paths and attachment circuits to use for the traffic, based on the indicated operational status, and on OTN fault detection, to protect against a fault. Thus protection can extend across the edge nodes without interworking of separate protection schemes and without a control plane. Traffic flows can be multiplexed at the ingress, with the indication in the overhead having separate indications for each of the traffic flows.
Apparatuses, methods, and computer programs for a receiver and a transmitter of a wireless system for improved wireless communication
Embodiments provide apparatuses, methods, and computer programs for a receiver and a transmitter of a wireless system. An apparatus (10) for a receiver (100) of a wireless communication system comprises means for receiving (12) radio signals, which are organized in repetitive radio frames, a radio frame being subdivided in sub-frames. The apparatus (10) further comprises means for extracting (14) a first payload data packet from the received radio signals using a single sub-frame of the received radio signals and for extracting a second payload data packet using two or more sub-frames of two or more radio frames. An apparatus (20) for a transmitter (200) comprises means for obtaining (22) information on a subset of radio resources for scheduled and/or non-scheduled transmission. The apparatus (20) further comprises means for transmitting (24) radio signals, which are organized in repetitive radio frames, a radio frame being subdivided in sub-frames, the means for transmitting (24) is operable to transmit a first payload data packet using a single sub-frame of the radio signal and for transmitting a second payload data packet using two or more sub-frames.
Multiple access spread spectrum switching methodology
A low-cost, low-power, low-complexity, small, high-reliability, robust, seamless satellite communication network is described. The network performs encoding of a user signal at the customer premises to enable routing of the user signal to an appropriate destination beam at the satellite requiring low power user signal processing. Routing information is embedded at the periphery of the network CPE's rather than at the satellite. Embedding the routing information in this way greatly reduces on-board switching complexity and increases signal to interference ratio for the user.
Broadband multi-beam satellite radiocommunication system configured for improved frequency re-use and improved frequency re-use method
A broadband multi-beam satellite radiocommunication system configured to implement a scheme for re-use of frequencies from a total band allocated to an uplink comprises a satellite with a multi-beam receive antenna that forms adjacent reception spots of a terrestrial coverage. Each reception spot consists of a central inner zone and a peripheral zone. Each central inner zone is a cellular pattern identical except for a scale factor to geographical cells wherein the principal frequency sub-bands of a bundle of separate or adjacent principal sub-bands are unitarily distributed and the combination of which is equal to a principal band, included in the total band.
Cyclic shift diversity in communication systems
Embodiments of the present disclosure describe methods and apparatuses for selective application of cyclic shift diversity in uplink communications of mobile communication systems. Other embodiments may be described and/or claimed.
Control signaling in a beamforming system
A method of control signaling in a beamforming system is proposed. A base station allocates a first sets of DL control resource blocks for DL transmission to a plurality of user equipments (UEs) in a beamforming network. Each set of DL control resource blocks is associated with a corresponding set of beamforming weights. The base station also allocates a second sets of UL control resource blocks for UL transmission from the UEs. Each set of UL control resource blocks is associated with the same corresponding set of beamforming weights. The base station transmits cell and beam identification information using a set of control beams. Each control beam comprises a set of DL control resource block, a set of UL control resource block, and the corresponding set of beamforming weights.
Apparatus, system and method of single-user (SU) multi-in-multi-out (MIMO) communication
Some demonstrative embodiments include apparatuses, devices, systems and methods of Single-User (SU) Multi-In-Multi-Out (MIMO) communication. For example, a first wireless station may configure at least one Phase Antenna Array (PAA) according to a predefined SU MIMO configuration, the SU MIMO configuration including at least a number of data streams, a number of PAAs to be used by the first wireless station, and a polarization type to be applied at the first wireless station; and may transmit a SU MIMO transmission to a second wireless station via the at least one PAA over a directional wireless communication band.
A communication device may establish at least one type of connection among a first type of connection and a second type of connection which are according to a particular protocol defined in an NFC standard based on a current state of the communication device and a current state of an external device. The first type of connection may be a connection in which the communication device operates as a server and the external device operates as a client. The second type of connection may be a connection in which the communication device operates as a client and the external device operates as a server. The communication device may communicate the target data with the external device by using the established connection. The contents of the communication may be different in response to which type of connection is established.
Methods and apparatus for improving remote NFC device detection using a low power oscillator circuit
A method, an apparatus, and a computer program product for inductive communication are provided in connection with providing mechanisms for detecting a remote NFC device without excessive power consumption. In one example, a communications device is equipped to monitor frequency oscillations associated with a NFC antenna using a calibrated LPO, determine that a number of occurrences of the frequency oscillations from a reference frequency is greater than a frequency deviation threshold, and perform a NFC polling procedure in response to the determination.
Near field communications apparatus
A near field communications apparatus comprising a signal source, a transmit antenna and means for detecting a change in the input impedance of the transmit antenna to detect the presence of a device which is compatible with the apparatus.
System for transmission of data and power
A system for transmission of data and electrical power comprising: a plurality of independent power sources, each one of the plurality of independent power sources being connected to a respective one of a plurality of electrical power lines; and a modulator configured to modulate a carrier signal with a data signal received at an input of the modulator so as to generate a modulated carrier signal at an output thereof, wherein the output of the modulator is coupled to each of the plurality of electrical power lines, to permit transmission of the modulated carrier signal over the plurality of electrical power lines, such that the plurality of electrical power lines form a data network while maintaining electrical isolation between each of the plurality of electrical power lines.
Power line communication device
This invention focuses on a power line communication (PLC) device that is particularly suitable for Home automation systems and for solar panel systems. The device comprises a modem, a power supply to power said modem from an AC power line and a coupling device to communicate via the power line. The coupling circuit comprises a serial LC filter (C1, L1) and a shunt element (42). The shunt element (42) comprises a rectifier (21) that is connected to the power supply. The present invention provides a novel synergy between the coupling device and the power supply of the modem. The invention provides a power line communication device that is more compact and less expensive than conventional PLC devices.
Dynamic frame selection when requesting tone map parameters in mesh networks
In a multiple interface, low power and lossy network comprising a plurality of nodes, a sender node dynamically selects a data packet for setting a transmission parameter request in response to determining that an age value for a set of transmission parameters associated with a recipient device has expired or is expiring. The sender node selects an desired data packet for sending a transmission parameter request and transmits the selected data packet to the recipient device. The sender node receives a transmission parameter response from the recipient node comprising updated transmission parameters for that recipient node and then updates the current transmission parameters associated with the recipient node accordingly.
Dynamic assignment of frequency hopping sequences in a communication network
In one embodiment, a management device determines a topology of nodes in a network. Based on the topology, frequency hopping sequences are assigned (and notified) to the nodes such that each particular node of a certain set of the nodes is assigned a frequency hopping sequence on which to transmit that is different than frequency hopping sequences of neighbors and hidden neighbors of that particular node. In another embodiment, a transmitting node first transmits a transmission indication signal on its particular frequency band based on its frequency hopping sequence, and then transmits a message on the particular frequency band. In a further embodiment, a receiving node listening to a plurality of frequency bands may detect the transmission indication signal on the particular frequency band. In response, the receiving node filters out all frequency bands other than the particular frequency band, and receives the following transmission on that particular frequency band.
Methods and arrangements for spur estimation of a wireless communication packet
Logic for spur estimation of a wireless communication packet. Logic may receive an input signal output by a set of analog-to-digital converters and determine means of sequences for each of the analog-to-digital converters. The sequences may be from a preamble of the wireless communication packet. The sequences may comprise a set of short training sequences with an average zero mean received after logic detects a boundary of the sequences. The set of short training sequences may comprise a Golay sequence Ga and a Golay sequence −Ga. Logic may determine spur estimations for each of the analog-to-digital converters based upon a frequency offset estimation for the wireless communication packet. Logic may remove a mean of the spur estimations from the spur estimations. And logic may remove the spur estimations from the packet.
Electronic device having antenna tuning integrated circuits with sensors
An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. An antenna may have an antenna feed that is coupled to a radio-frequency transceiver with a transmission line. An impedance matching circuit may be coupled to the antenna feed to match the impedance of the transmission line and the antenna. The impedance matching circuit and tunable circuitry in the antenna may be formed using integrated circuits. Each integrated circuit may include switching circuitry that is used in switching components such as inductors and capacitors into use. Sensors such as temperature sensors, current and voltage sensors, power sensors, and impedance sensors may be integrated into the integrated circuits. Each integrated circuit may store settings for the switching circuitry and may include communications and control circuitry for communicating with external circuits and processing sensor data.
Compact and low-power millimeter-wave integrated VCO-up/down-converter with gain-boosting
A wireless data transceiver comprises a local oscillator configured to generate a first time-varying signal of a first frequency at an output of the local oscillator. The transceiver further comprises a local oscillator interface circuit coupled to the local oscillator. The local oscillator interface circuit is configured to generate a second time-varying signal of the first frequency with negative conductance at an output of the local oscillator interface circuit. The negative conductance is generated based on capacitive degeneration. The transceiver further comprises a frequency mixer coupled to the output of the local oscillator interface circuit. The frequency mixer is configured to generate a third time-varying signal of a second frequency based on the second time-varying signal.
Protective case with screen-cleaning function for electronic device
A protective case with a function of clearing and cleaning a display screen of an electronic device includes a case body, a clear component, and a mounting component. The case body defines a receiving space in which the electronic device is held and an opening at one end of the case body. Two opposite slide grooves are provided in the case body. The clear component on the mounting component can be pushed from an end of the case body along the display screen of the electronic device, to clear and clean it.
Mobile communication terminal for decreasing SAR value and method of controlling the same
A method of controlling a mobile communication terminal including a first antenna and a second antenna is provided. The method includes receiving transmission data to be transmitted, applying first power smaller than a first threshold value to the first antenna, applying second power smaller than the first threshold value to the second antenna, and cooperatively transmitting the transmission data based on the first power and the second power, respectively, by the first antenna and the second antenna, wherein a sum of the first power and the second power is larger than a second threshold value.
High oversampling ratio dynamic element matching scheme for high dynamic range digital to RF data conversion for radio communication systems
An RF transmitter module for a cellular radio that includes a delta-sigma modulator having a plurality of interleaving dynamic element matching (DEM) circuits providing interleaved digital bits at a reduced clock rate. An interleaver controller controls the DEM circuits so as to provide groups of the digital bits at different points in time. In one embodiment, a summation junction adds the groups of the digital bits to provide a continuous stream of the interleaved digital bits, a DAC converts the stream of interleaved digital bits to an analog signal, and a power amplifier amplifies the analog signal.
Processing interference in a wireless network
Interference (I3) in a waveform received at a device in a wireless network is processed, the processing, for example, being used to detect and/or reduce the interference. The interference comprises non-linear products of at least a first signal. On the basis of at least the first signal, a plurality of interference product streams are generated, each stream comprising a stream of time samples of a simulated non-linear product of at least the first signal. At least two of the plurality of interference product streams are processed to reduce a degree of correlation between said at least two interference product streams thereby producing at least two processed interference product streams, which are correlated with the received waveform to produce a plurality of respective correlation values. The interference is processed in dependence on the plurality of respective correlation values.
Voltage standing wave radio measurement and tuning systems and methods
A standing wave ratio detection arrangement is disclosed. The arrangement includes a standing wave ratio detector and a controller. The standing wave ratio detector is configured to receive an isolated signal and a coupled signal and to generate a multi-bit return loss signal based on the isolated signal and the coupled signal in the analog domain using successive attenuation of the coupled signal. The controller is configured to determine a standing wave ratio from the return loss and to generate an antenna tuner control signal using the standing wave ratio.
Transformer and communication terminal device
In a transformer, first and second coils are provided on different substrate layers of a multilayer body. The first and second coil conductors are interlayer-connected to each other by interlayer connection conductors. A coil aperture defined by the first coil conductor and a coil aperture defined by the second coil conductor overlap each other when seen in a plan view from a laminating direction of the multilayer body. The first and second coil conductors are connected to each other at at least two places with the interlayer connection conductors interposed therebetween. A parallel connection portion including a first portion of the first coil conductor and a first portion of the second coil conductor is provided, and a series connection portion including a second portion of the first coil conductor and a second portion of the second coil conductor is provided.
Bit interleaver for low-density parity check codeword having length of 16200 and code rate of 4/15 and 256-symbol mapping, and bit interleaving method using same
A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.
Data transfer device, data transfer system, method for compressing and transferring data, and program
A data transfer device includes a calculation unit and a compression processing unit. The calculation unit determines, from a plurality of compression techniques, a combination of a first compression technique and a second compression technique for optimizing effective throughput based at least on compression performance parameters related to the plurality of compression techniques and a transfer performance parameter related to transfer processing, the first compression technique being a technique in which a speed of compression processing serves as a constraint in a data transfer as compared with a speed of transfer processing, the second compression technique being a technique in which a speed of transfer processing serves as a constraint in a data transfer as compared with a speed of compression processing. The compression processing unit compresses target data using at least one of the first compression technique and the second compression technique.
Method and arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium
The present invention describes a method and an arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium, which can particularly be employed as a novel efficient method for binary-arithmetic coding transform coefficients in the field of video coding.For this, it is suggested that, for blocks of (video) pictures containing significant transform coefficients, coding of the transform coefficients takes place in such a way that, for each block in a scan process, the positions of significant transform coefficients in the block and subsequently, in a reverse scan order—starting from the last significant transform coefficient within the block—the values (levels) of the significant transform coefficients are determined and coded.
Method and apparatus for performing analog-to-digital conversion on multiple input signals
A method, computer-readable storage medium, and signal processing apparatus for processing a plurality of input signals. The method includes receiving or generating a first intermediate signal and a second intermediate signal. The first and second intermediate signals are output to a signal analog-to-digital converter having a predetermined sampling frequency.
Electrical noise reduction in an analog-to-digital converter
A system and method can be provided for sampling the residual error in an oversampled SAR ADC, bandpass filtering the sampled residual error, and providing the bandpass filtered signal to an input of a DAC, such as to provide a bandpass filtered output of the SAR ADC. The bandpass filtered output of the SAR ADC can have a reduced electrical noise.
Analog system and associated methods thereof
In one aspect a system is provided. The system a plurality of flash compare modules to output a set of unordered output signals based on an analog input signal; a plurality of device selection modules that receive the unordered output signals and generate ordered signals representing the analog input; and a temperature and voltage compensation module for receiving one or more of temperature and voltage signals from at least a temperature and voltage sensor module that senses one or more of temperature and voltage values that are used to compensate for changes in output signals caused by changes in one or more of die temperature and core voltage.
Method for amplifying an echo signal suitable for vehicle surroundings detection and device for carrying out the method
A method for amplifying an echo signal, in which an analog echo signal suitable for detection of a vehicle's surroundings is amplified by a gain dependent on the transit time of the echo signal, the analog echo signal being amplified by an amplifier having a plurality of outputs, each having a different gain, and a downstream A/D converter having a time-variable reference voltage. In the process, there is a switch between the different outputs of the amplifier at predefined switching points in time, and the reference voltage of the A/D converter varies over time between the switching points in time in such a way that the echo signal is present at the output of the A/D converter with a transit time-dependent total gain having a predefined characteristic.
Phase locked loop circuit control device and control method of phase locked loop circuit
A phase locked loop circuit control device includes: a phase locked loop circuit configured to generate a clock signal; and a control unit configured to, when being instructed to change a frequency of the clock signal from a current frequency to a target frequency, control the phase locked loop circuit to make the frequency change stepwise from the current frequency to the target frequency, in which the control unit changes the frequency of the clock signal by a first change amount in a first frequency range out of the range of the current frequency to the target frequency, and changes the frequency of the clock signal by a second change amount in a second frequency range out of the range of the current frequency to the target frequency.
System and method for clock generation with an output fractional frequency divider
A system and a method generate clock signals using an output divider with modulus steps of half-integers (i.e., the output circuit includes a divider which divides by one or more of 2, 2.5, 3, 3.5, 4 . . . ).
Digital controller for a phase-locked loop
A digital control loop circuit is disclosed which is coupleable to an oscillator to form a configurable, digital phase-locked loop to generate an output signal having a configurable or selectable output frequency. A representative embodiment of the digital control loop circuit may include a memory storing a plurality of configuration parameters, at least one configuration parameter specifying the output frequency; and a digital controller coupleable to receive an input signal from a reference frequency generator having a reference frequency, the digital controller adapted to access the memory and retrieve the plurality of configuration parameters, and to generate a plurality of control signals to the oscillator both to generate the output signal having the output frequency in response to the plurality of configuration parameters, and to match a phase of the output signal to an input signal phase.
System and method for clocking digital logic circuits
An electronic device includes multiple functional logic modules each having a corresponding settling time, a clock generator element, and multiple memory elements. The clock generator element generates multiple clock signals having clock periods of a common duration. Each clock signal has a first clock transition and a second clock transition during each clock period, and a latest second clock transition of the clock signals in a particular clock period precedes an earliest first clock transition in a subsequent clock period by the settling time. Each memory element is clocked by a respective one of the clock signals, and each memory element includes an input latch clocked on a first clock transition of the respective one of the clock signals, and an output latch clocked on a second clock transition of the respective one of the clock signals.
Digital signal up-converting apparatus and related digital signal up-converting method
A digital signal up-converting apparatus includes: a clock generating circuit arranged to generate a reference clock signal; an adjusting circuit coupled to the clock generating circuit and arranged to generate a first clock signal and a second clock signal according to the reference clock signal; a baseband circuit coupled to the adjusting circuit for receiving the first clock signal, wherein the baseband circuit further generates a digital output signal according to the first clock signal; and a sampling circuit coupled to the adjusting circuit and the baseband circuit for receiving the second clock signal and the digital output signal, wherein the second clock signal and the digital output signal are non-overlapping; wherein the sampling circuit samples the digital output signal based on the second clock signal and then combines the sampled digital output signal in order to generate a combined digital signal.
Level-sensitive two-phase single-wire latch controllers without contention
Systems and methods are described for a contention-free single-wire latch controller that includes first and second bidirectional signal pins (e.g., the L and R pins in the FIGS), a latch enable output pin (or signal), E, and a decision element (such as a NAND or a NOR gate). A first driving transistor may be coupled between the first bidirectional signal pin and a power rail. A second driving transistor may be coupled between the second bidirectional signal pin and the power rail. A first half-latch may be coupled to the first bidirectional signal pin. A second half-latch may be coupled to the second bidirectional signal pin.
Dynamic clock gating frequency scaling
An electronic apparatus may be provided that includes a clock device to provide a clock signal, and a clock gate to receive the clock signal, the clock gate to be selectively provided in an enabled state or a disabled state. The electronic apparatus may also include a controller to determine a frequency transition and to control the clock gate to be in the enabled state or the disabled state based on the determined frequency transition.
Apparatus and methods for leakage current reduction in integrated circuits
This disclosure relates to leakage current reduction in integrated circuits (ICs). In one aspect, an IC can include a digital logic circuit and a polarization circuit. The digital logic circuit can have a plurality of inputs and can include a plurality of logic gates. The polarization circuit can receive a standby signal and a digital input signal comprising a plurality of bits. When the standby signal is deactivated, the polarization circuit can control the plurality of inputs of the digital logic circuit based on the digital input signal. However, when the standby signal is activated the polarization circuit can control the plurality of inputs of the digital logic circuit to a low power state associated with a smaller leakage current of the plurality of logic gates relative to at least one other state of the digital logic circuit.
Reconfiguring an ASIC at runtime
Methods for reconfiguring an ASIC at runtime without using voltage over scaling. A functional criticality of a set of logic in the ASIC is identified. Then, the set of logic are classified into a set of regions based on the functional criticality, each region of the set of regions having a target error threshold. Further, each region is power gated at runtime based on the functional criticality such that the target error threshold is achieved without using voltage over scaling.
20V to 50V high current ASIC PIN diode driver
An apparatus having a first circuit, a second circuit and a third circuit is disclosed. The first circuit may be configured to translate an input signal in a first voltage domain to generate a complementary pair of first signals in a second voltage domain. The second circuit may be configured to logically switch the first signals to generate a complementary pair of second signals in the second voltage domain. The first signals may be logically switched such that both of the second signals are inactive before one of the second signals transitions from inactive to active. The third circuit may be configured to amplify the second signals to generate a complementary pair of output signals in the second voltage domain. Each of the output signals generally has a current capacity to drive one or more of a plurality of diodes in a diode switch circuit.
The present invention is provided to easily manufacture an IPD as any of a high-side switch and a low-side switch. A level shifting circuit is coupled to an input terminal, a first terminal, and a grounding terminal. Drive power of the level shifting circuit is supplied from the first terminal. An output signal of the level shifting circuit is input to a driver circuit. The driver circuit is coupled to the first terminal and a second terminal. Drive power of the driver circuit is supplied from the first terminal. A transistor has a gate electrode coupled to the driver circuit, a source coupled to the second terminal, and a drain coupled to a third terminal.
Low power reset circuit
A low power reset circuit includes a bias generator for receiving an operating voltage generated by a power supply and generating a bias voltage in response to the received operating voltage. The operation speed of a shaper for generating a shaped signal for indicating the operating voltage and the operation speed of a comparator for comparing a threshold reference voltage with the shaped signal are both controlled in response to the generated bias voltage. The comparator also generates a comparison signal for indicating a result of the comparison. In response to the comparison signal, a reset signal generator generates a reset signal for resetting protected circuitry powered by the operating voltage generated by the power supply.
A semiconductor device includes: a diode-integrated IGBT element in a same semiconductor substrate having a diode element and an IGBT element driven by a drive signal towards a gate; a sense element having a diode sense element with a current proportional to a current through the diode element and an IGBT sense element with a current proportional to a current through the IGBT element; a switch element connected to a first current pathway through the diode sense element and to a second current pathway different from the first current pathway. The switch element is turned off to control the second current pathway to be discontinuous with the first current pathway when no current flows through the diode sense element, and is turned on to control the second current pathway to be continuous with the first current pathway and apply a current when a current flows through the diode sense element.
Dynamic sense amplifier with offset compensation
A device includes a first and second inverters each having a signal input, signal output, high voltage supply terminal, and low voltage supply terminal. The signal input of the first inverter is coupled to the signal output of the second inverter, and the signal input of the second inverter is coupled to the signal output of the first inverter. A first transistor has a first conduction terminal coupled to a power supply node, a second conduction terminal coupled to the high voltage supply terminal of the first inverter, and a control terminal coupled to a first node. A second transistor has a first conduction terminal coupled to the power supply node, a second conduction terminal coupled to the high voltage supply terminal of the second inverter, and a control terminal coupled to a second node. First and second bit lines are capacitively coupled to the first and second nodes.
Ultra low voltage ring oscillator with redundant inverter
Redundant inverters with multiple inverter stages enable lower operating voltages to be used. For example, the use of multiple inverter stages produces a strong “0” or a strong “1” output signal. The strong output signal facilitates self-oscillation of a ring oscillator at lower voltages.
Methods for tuning an adaptive impedance matching network with a look-up table
Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.
Analog baseband filtering apparatus of multimode multiband wireless transceiver and control method thereof
The ABB blocks 332, 334, 336, and 318 are configured to process the I/Q signals corresponding to the first or the second HB independently or the I/Q signals corresponding to the LB in cooperation by two. In detail, the first ABB I block 332 and the first ABB Q block 334 operate independently in the 3G/4G mode but they are configured to process the I signal (or Q signal) of the LB in the 2G mode. Likewise, the second ABB Q block 336 and the second ABB I block 318 operate independently in the 3G/4G mode but they are configured to process the Q signal (or I signal) of the LB in the 2G mode. The first ABB I/Q blocks 332 and 334 and the second ABB I/Q blocks 336 and 318 are arranged symmetrically to processing the I/Q signals cooperatively in the 2G mode. In detail, the second ABB Q block 336 is arranged close to the first ABB Q block 334 such that the capacitor regions included in the first ABB I/Q blocks 332 and 334 are connected to each other and the capacitor regions included in the second ABB I/Q blocks 336 and 338 are connected to each other.
Method, system, and apparatus for resonator circuits and modulating resonators
Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. One or more acoustic wave resonances may be modulated by one or more capacitors or tunable capacitors. One or more acoustic wave modules may also be switchable in a filter. Other embodiments may be described and claimed.
Radio frequency filtering circuitry with resonators
RF multiplexer circuitry includes a first signal path coupled between a first intermediate node and a common node, a second signal path coupled between a second intermediate node and the common node, first resonator circuitry coupled between the first signal path and ground, and second resonator circuitry coupled between the second signal path and ground. The first resonator circuitry is configured to allow signals within a first frequency pass band to pass between the first intermediate node and the common node, while attenuating signals outside of the first frequency pass band. The first resonator circuitry includes a first LC resonator. The second resonator circuitry is configured to allow signals within a second frequency pass band to pass between the second intermediate node and the common node, while attenuating signals outside of the second frequency pass band.
Impedance matching device with coupled resonator structure
An impedance matching device is presented. The device includes an input terminal configured to receive a radio frequency signal, and an output terminal configured to couple to an amplifier. The device includes an impedance prematch network coupled to the input terminal and the output terminal. The impedance prematch network includes a first inductor, such as a first wire bond. The device includes a resonator structure including a second inductor, such as a wire bond, inductively coupled to the first inductor.
Adaptive impedance matching
An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an undesirable effect caused by an RF signal. Other embodiments are disclosed.
Electronic amplifier with a feedback circuit that includes a transconductance amplifier
An electronic amplifier has a feedback circuit with a transconductance amplifier.
Mode linearization switch circuit
Aspects of this disclosure relate to a mode linearization switch circuit that can adjust an effective impedance provided to an output of an amplifier. In an embodiment, an apparatus includes an amplifier configured to amplify a radio frequency (RF) signal and a mode linearization switch circuit electrically coupled to an output of the amplifier. The mode linearization switch circuit can include a capacitor, a switch in series with the capacitor, and a series LC circuit in parallel with the switch.
Automatic impedance matching using true power information
Aspects of this disclosure relate to systems and methods of performing dynamic impedance tuning. Certain aspects may be performed by or include a dynamic impedance matching network. The dynamic impedance matching network can determine a desired output power for a power amplifier, true power information for the power amplifier, and an output power delivered to a load by the power amplifier. In addition, the dynamic impedance matching network can determine whether the output power satisfies the true power information. Responsive to this determination, the dynamic impedance matching network may modify a load line impedance for the power amplifier using an impedance tuning network.
Bandpass filter providing wide gain control range
A bandpass filter that provides a wide gain control range is provided. The bandpass filter performs channel filtering and gain control while maintaining the bandpass characteristic of the bandpass filter. The bandpass filter enables gain control for a wide signal amplitude range while maintaining performance characteristics, such as an out-of-band attenuation ratio capable of high linearity and good pass-band flatness.
Power amplification system with adjustable common base bias
Power amplification system with adjustable common base bias. A power amplification system can include a first transistor having a base coupled to a radio-frequency input. The power amplification can further include a second transistor having an emitter coupled to a collector of the first transistor and having a collector coupled to a radio-frequency output. The power amplification system can include a biasing component configured to apply a fixed biasing signal to the base of the first transistor and to apply an adjustable biasing signal to the base of the second transistor.
Connecting components for photovoltaic arrays
The invention includes an apparatus for mounting a photovoltaic (PV) module onto a structure where the apparatus includes a base portion, a stud portion, and a coupling portion. The coupling portion includes a male portion that acts as a spring under load and a clip portion that penetrates the PV module frame to create a grounding bond. The apparatus includes a lower jaw, shaped to pry open a groove, and a key portion that can compress to allow for tolerances. The invention further includes a clip with one or more tabs and one or more teeth. The invention further includes a replacement roof tile which includes a support structure with a horizontal flange, a vertical component, a horizontal component, a flashing with an upper surface and a lower surface, and a tile-shaped metal surface having a curvilinear shape that reflects the shapes of adjacent tiles.
Roof attachment system
A roof attachment system has a stud for retaining a fixture to a roof and is mountable to and sealable with a roof. The attachment system includes a base and a retaining stud which projects upwardly from the base. A membrane is disposed over the base. Cooperative upper and lower mount plates include peripheral oppositely projecting teeth which form an intermediate axial gap. A retainer ring is disposed in into the gap and alternately engages against the teeth of the upper and lower mount plates to axially tighten the attachment components to provide a seal.
Method and inverter with thermal management for controlling an electric machine
A temperature estimation module estimates each junction temperature of a corresponding semiconductor device, among a plurality of semiconductor devices, for each phase of an inverter. The temperature estimation module or the data processing system determines a hottest device with a highest junction temperature among the semiconductor devices. A thermal adjustment module or data processing system determines if the highest junction temperature parameter is less than maximum junction temperature parameter for the respective semiconductor device or deciding whether or not to adjust a duty cycle of the semiconductor devices.
AC motor driving system and method thereof
AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.
Solar energy utilization system
A solar energy utilization system includes a solar panel, a motor driven by an inverter circuit functioning as a motor drive circuit with power output by the solar panel, a solar output voltage monitor functioning as a monitor that monitors an input or an output of the solar panel and also functioning as a monitor that monitors an input or an output of the inverter circuit, and a controller. The controller has a control mode in which the inverter circuit is controlled such that an output voltage of the solar panel is maintained at a voltage higher than a maximum power point voltage. In this control mode, the controller performs the control such that a rotation speed of the motor is changed repeatedly at predetermined timings.
Motor driving device
A motor driving device includes an inverter circuit having switching elements; and a control device controlling the switching of the switching elements. The control device sets a carrier frequency to f1 when a two-phase modulation scheme is selected, and sets the carrier frequency to f0, which is half of the carrier frequency f1, when a three-phase modulation scheme is selected. Thereby, the frequency of the secondary component of a current flowing in a filter circuit of when selecting the three-phase modulation scheme may be deviated from the resonance frequency of the filter circuit. Accordingly, the current ripple generated in the filter circuit may be reduced even when selectively switching the modulation scheme for the PWM modulation among a plurality of modulation schemes.
Electromechanical transducer device and analyte information acquiring apparatus
To suggest an electromechanical transducer device with a high S/N ratio, an electromechanical transducer device includes a first substrate; electromechanical transducer elements two-dimensionally arrayed on a front surface of the first substrate and configured to provide conversion between acoustic waves and electric signals; an electric wiring substrate that is a second substrate electrically connected with a back surface of the first substrate; a first acoustic matching layer provided between the first substrate and the second substrate; an acoustic attenuating member arranged on a back surface of the second substrate; and a second acoustic matching layer provided between the second substrate and the acoustic attenuating member.
Modular high-frequency converter, and method for operating same
A converter includes multiple submodules that are serially connected on the input side to a DC power supply circuit via an inductor. Each submodule has an input-side half bridge and an at least single-phase output-side full bridge and an intermediate circuit capacitor connecting the half bridge and the full bridge forming an intermediate DC voltage circuit. According to the method, the submodules are alternately connected to the power supply circuit, thereby also connecting the intermediate circuit capacitor of the respective connected submodule to the power supply circuit, and the intermediate circuit voltage dropping across the respective intermediate circuit capacitor of each submodule is measured. The submodule to be connected is selected according to the voltage deviation of the corresponding intermediate circuit voltage from a specified target voltage value.
Insulation type switching power supply apparatus
A power supply apparatus comprises: a transformer that includes primary/secondary windings that are electromagnetically connected to each other with polarities opposite to each other, an output switch that activates/inactivates an electric-current route that extends from an application terminal for an input voltage to a ground terminal via the primary winding a rectifying-smoothing portion that generates an output voltage from an induced voltage, a feedback voltage generation portion that monitors a switch voltage appearing at a connection node between the primary winding and the output switch and generates a feedback voltage in accordance with the output voltage, a reference voltage generation portion that generates a reference voltage, a comparator that compares the feedback voltage and the reference voltage with each other to generate a comparison signal, and a switching control portion that generates an output switch control signal by means of an on-time control method in accordance with the comparison signal.
Multi-phase interleaved converter and control method thereof
A multi-phase interleaved converter includes n sub-circuits of phases, a current controller and a balancing controller. The n sub-circuits of phases have inputs connected in parallel and outputs connected in parallel in order to convert a direct current (DC) or alternating current (AC) input voltage of one level into a DC or AC output voltage of another level. The current controller receives a current control command and a phase current value of a particular sub-circuit of a particular phase among the n sub-circuits of the respective phases to output a control signal for controlling the particular sub-circuit of the particular phase. The balancing controller receives phase current values of the n sub-circuits of the respective phases and receives a control signal output from the current controller to adjust the duty ratios of control signals applied to the other sub-circuits.
Zero-voltage switching buck converter and control circuit therefor
A zero-voltage switching buck converter circuit and control circuit are provided. The buck converter circuit may include a first inductor, a smoothing capacitor coupled to the first inductor, a rectifier diode coupled in parallel with the first inductor and the smoothing capacitor, a control switch coupled to the first inductor, a control circuit configured to turn the control switch off and on repeatedly at a high frequency rate; and a snubber network coupled to the first inductor and the control circuit. The snubber network may include second and third inductors connected in series, wherein one terminal of the first inductor is connected to a node connecting the second and third inductors, and an auxiliary switch connected to the control circuit. A first terminal of the second inductor that is not connected to the node may be coupled to the control switch, and a first terminal of the third inductor that is not connected to the node may be coupled to the auxiliary switch.
Low voltage DC-DC converter (LDC) control apparatus for preventing overheat of LDC and method of operating the same
Disclosed are an LDC control apparatus for preventing an LDC from being overheated, and a method of operating the same. The LDC control apparatus includes a comparator configured to compare a heat release temperature of an LDC with a predetermined criterion temperature, an adjustor configured to adjust a predetermined criterion current value according to a result of the comparison of temperature, and a controller configured to compare the adjusted criterion current value with an output current value being output from the LDC, and control the LDC by converting a control mode of the LDC according to a result of the comparison of current.
Switching power device
A switching power device includes: a main circuit having a switching element and a coil that adjusts a current flowing through the coil and outputs a voltage; an output voltage detection circuit that outputs a first voltage; an error amplification circuit that outputs an error signal in response to a difference between the first voltage of the output voltage detection circuit and a second voltage; an oscillation circuit that outputs an oscillation signal; a driving circuit that outputs the driving signal to the switching element in response to a comparison result by comparing the oscillation signal of the oscillation circuit and the error signal of the error amplification circuit; and a soft-start control unit that controls the second voltage in response to the first voltage of the output voltage detection circuit when the first voltage reaches a soft-start threshold voltage between a standard detection voltage and a start detection voltage.
Driving circuit, operation method thereof and display apparatus
Provided are a driving circuit and its operation method and a display apparatus. The driving circuit comprises a boost circuit unit, a load unit and a voltage monitoring unit, the load unit is connected to a power source providing an initial input voltage, the boost circuit unit is connected to both the load unit and the voltage monitoring unit, the load unit is connected to the voltage monitoring unit; the load unit provides a resistor of fixed resistance value; and the voltage monitoring unit determines whether an actual voltage input into the boost circuit unit is smaller than a predetermined voltage, and generates a reset signal which is used to control the driving circuit to restart if it is determined that the actual voltage is smaller than the predetermined voltage. The driving circuit can perform self-detection of its own electro-static electricity, and perform self-recovery when detecting that an electro-static current exceeds the maximum current that the driving circuit can withstand, such that the capability of anti electro-static electricity of the display apparatus is improved.
Method for controlling an electronic circuit
A method for controlling an electronic circuit by means of the first, second and third operating parameters, comprises: determining a range of variation of the third parameter for each value of the first parameter by varying the second parameter, said ranges being different; determining a target value of the third parameter; if the target value is within one of the ranges, operating the electronic circuit by setting the third parameter to the target value; and in the opposite case, selecting the two ranges framing the target value and operating the electronic circuit by consecutively bringing the third parameter into each one of the selected ranges.
Single-stage AC-to-DC converter with variable duty cycle
A single-stage AC-to-DC converter includes a bus capacitor, a power factor correcting module, a resonant converting module and a control module. The power factor correcting module generates, based on an AC (alternating current) input voltage, a first control signal and a second control signal, a DC (direct current) bus voltage across the bus capacitor and an intermediate voltage switching between the bus voltage and zero. The resonant converting module generates a DC output voltage based on the intermediate voltage. The control module generates, based on the bus voltage, the first and second control signals, each of which switches between an active state and an inactive state and has a duty cycle associated with the bus voltage.
Magnetic power generator
A magnetic power generator (10) includes at least one rotor assembly (12) that is positionable at selected angles relative to the horizontal. The rotor assembly includes a plurality of spokes (20) emanating from a central rotational axis (26), with high-performance magnetic coils (22) mounted on the outer end portions of the spokes. The rotor assembly (12) is drivingly connected to AC/DC generator (32), the output of which is routed to a power transfer switching unit (40) which outputs electricity as either AC or DC and at various desired voltages. A programmable system controller (24) controls the polarity of the magnetic coils (22) mounted on the ends of the spokes (20), as well as the operation of the generator (32) so as to power and constantly change the polarity of the magnetic coils as the rotor assembly rotates, thereby to cause the rotor assembly to rotate by virtue of interaction with the Earth's magnetic field.
Manufacturing device and manufacturing method for stator of rotating electrical machine
A manufacturing device for a stator of a rotating electrical machine includes a jig, a support section, link mechanisms and press sections. The jig has holding grooves into which linear portions of coils can be respectively inserted. The jig can be arranged on the inner side of a stator core while holding grooves respectively face the openings of slots. Each of the link mechanisms has a push-out member and a link. The link moves a corresponding push-out member in a direction from the bottom portion of the holding groove to a corresponding slot and in a direction from the slot to the bottom portion. The push-out members can concurrently apply a pressing force to all the coil ends of the coils from the axial direction of the stator core in synchronization with the link mechanisms.
Motor incorporating power converter, and air conditioner, water heater, and ventilation blower incorporating the motor
A motor incorporating a power converter that includes a printed board on which an inverter IC, which converts a voltage of an external power supply into a high-frequency voltage and supplies the high-frequency voltage to a stator, is mounted, wherein on a surface of the printed board opposed to the stator, a high-voltage direct-current input wire, which is a copper foil provided on a surface on a stator side, is disposed. One end of the high-voltage direct-current input wire is electrically connected to a high-voltage input line of the external power supply and the other end of the high-voltage direct-current input wire is electrically connected to a high-voltage electrode of the inverter IC.
Electrical machines and methods of assembling the same
A motor component for coupling a motor to a work component is provided. The motor component includes a flange coupled to the motor; and an adapter coupled to the flange. The adapter includes a shaft aperture and a pattern of a plurality of through-holes disposed about the shaft aperture and configured to couple to a plurality of pads of the work component. A method of assembling an electrical machine to a work component includes coupling a motor component to a motor of the electrical machine. The method further includes aligning a pattern of a plurality of through-holes of the motor with at least one pad of a plurality of pads of the work component. The method includes coupling the pattern of the plurality of through-holes to the at least one pad of the plurality of pads of the work component.
Rotating electrical machine
A rotating electrical machine includes: a case; a rotor; a stator; a control portion including a field circuit portion used to supply a current to a control circuit and the field winding; a power circuit portion controlling a stator current; a heat sink installed so as to cool the control portion and the power circuit portion; a first waterproof portion providing waterproofing to signal terminals of the power circuit portion and the field circuit portion; a second waterproof portion provided with through-holes from which a part of the control portion and the power circuit portion is exposed and providing waterproofing between the control portion as well as the power circuit portion and the heat sink; and insulation portions installed in the through-holes of the second waterproof portion and isolating the control portion and the power circuit portion from the heat sink.
Electric compressor for vehicle
A compressor equipped with an electric motor having a stator including a stator core, coils, and a string. The stator core is formed of laminated core plates and has crimped portions in boundaries between a yoke and bases of teeth. The crimped portions are spaced at equal intervals in a circumferential direction of the stator core. Coil ends are laced by the string in such a way that the string is not passed through teeth spaces having the crimped portions disposed outward thereof in a radial direction of the stator core, but passed through the teeth spaces that are located adjacently on opposite sides of each of the teeth spaces having the crimped portions disposed radially outward thereof and also passed through at least one of any two adjacent of the teeth spaces.
Motor with multi-phase windings and series-stacked inverter
In one aspect, a system is described. The system may include a rotor, a plurality of magnets positioned adjacent to the rotor, and a stator defining a plurality of sections. Each of the plurality of sections of the stator may include a plurality of teeth. The system may also include a plurality of winding wires wound around the plurality of teeth of each of the plurality of sections of the stator. The plurality of winding wires wound around the plurality of teeth may define a plurality of single-phase sub-motors. The plurality of single-phase sub-motors have a magnetic design such that at least one of the plurality of single-phase sub-motors are rotationally offset from an adjacent single-phase sub-motor, which may improve motor performance and voltage isolation. The system may also include a plurality of inverters coupled to the plurality of winding wires.
A transducer contains a rotor, on which permanent magnets are arranged in a concentrically radiant manner, and two stators are provided at both sides of the rotor. The stators are produced from a soft-magnetic material. Each stator contains a first stator section with radially outer supporting bars for first magnetic active faces of the stator being opposite the rotor and a second stator section with radial inner supporting bars for second magnetic active faces of the stators being opposite the rotor. An annular winding groove for receiving a winding is provided between the stator sections. Supporting bars are each arranged in an annular manner and each extend parallel to the rotor axis in the direction of the rotor. The magnetic active faces of the stators are end faces of projections which are uniformly spaced to one another and which protrude from the supporting bars in the direction of the rotor.
Wireless power transmission system, power transmitting device, and power receiving device
In a power transmitting device constituting a wireless power transmission system, a voltage generating circuit applies a voltage between an active electrode and a passive electrode. In a power receiving device, a voltage generated between an active electrode that is opposed to the active electrode, and a passive electrode that is opposed to or brought into contact with the passive electrode when the power receiving device is placed on the power transmitting device is inputted to a load circuit as a power supply voltage. Passive electrodes of the power transmitting device are provided to electrostatically shield the opposed active electrodes with respect to the earth. Consequently, a wireless power transmission system, a power transmitting device, and a power receiving device are configured so the potential of the power transmitting device and the power receiving device during power transmission is stabilized to thereby prevent malfunction of the power receiving device.
Device for optimizing electrical energy
The invention includes; a sealed housing made of a plastic or metal material; a conductive plate made of a copper material, positioned in the center of the housing, and respectively connected to power lines so as to accumulate magnetic energy generated in an internal polymer-clay nanocomposite; a base insulation plate having insulation characteristics so as to fix the conductive plate; electric wires which are power lines for transmitting the magnetic energy stored on the conductive plate to the outside; the polymer-clay nano composite filled in the bottom portion of the housing such that the conductive plate is submerged therein; an upper ceramic layer coated on the inner wall of the housing so as to promote the magnetic interaction of a ceramic compound in the upper space portion of the polymer-clay nano composite.
Request control device, request control method, and computer program product for controlling electronic usage
According to an embodiment, a request control device includes a receiving unit, a generating unit, and a sending unit. The receiving unit is configured to receive a first electric power control request issued for purpose of controlling electric power usage. The generating unit is configured to generate a second electric power control request, which is different than the first electric power control request, at least using the first electric power control request. The sending unit is configured to send the second electric power control request.
Integrated mobile phone case and charger
An integrated mobile phone case and charger for providing both a protective casing for a mobile device which includes an integrated solar cell for charging the battery of the mobile device therein comprises a case body defined by a front piece and a back piece, with the back piece including solar cells, electrical wiring, and a charging port. The front piece and back piece are configured to releasable attached to each other to form an enclosure in which a mobile phone or other mobile device is placed and secured. The solar cells electricity to be generated to be supplied to the battery of a mobile device disposed in the integrated mobile phone case and charger. A thermoelectric cooler and an electronics control unit may additionally be included in the case body to enable selective charging and cooling of a mobile device with the generated electricity.
Device for energy mining
A device for collecting energy has a moving conducting body and with capacitive plates at the edge. When an incoming wave is incident upon the energy collection device, currents are induced on the moving conducting body, in turn having charges accumulated at the capacitive plates that are attached to the edge of the moving conducting body. As the accumulated charges move along with the conducting body, time-varying magnetic field is produced nearby, from which power is collected by various energy collection devices such as inductive and capacitive coupling devices. It is also possible to collect the energy by putting touch brushes on the charge-stored capacitive plates directly. Also the accumulated charges and consequently the amount of collected power are enhanced by applying the external magnetic field to the moving conducting body.
Energy storage charging from an adjustable power source
An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line and the signal indicates to an operating system component a change of an energy storage device state. The signal is used to trigger an alert or interrupt that causes the operating system component to display the change of the enemy storage state based on the signal.
Adjusting an extended power line disruption time and end-of-life used for at least one battery backup unit in a system
Provided are a computer program product, system, and method for adjusting an extended power line disruption time and end-of-life for at least one battery backup unit used in a system. A request is received to change from a first extended power line disruption time currently used in the system to a second extended power line disruption time. A first end-of-life and a second end-of-life correspond to the first extended power line disruption time and the second extended power line disruption time, respectively. A message is sent to a power distribution unit with information on the second extended power line disruption time to cause the power distribution unit to initiate a graceful shutdown of the system after power is supplied from the at least one battery backup unit for the second extended power line disruption time.
Charging system and charging stand
A non-limiting example charging stand comprises a main body that includes an outer side member and the inner side member. The inner side member has an inserting portion for inserting a portable game apparatus. The inserting portion is set with a depth that hides a portion of a hinge but does not hide a cover constituting a part of a housing of the portable game apparatus when inserting the folded portable game apparatus in a vertical orientation. Accordingly, when viewing the portable game apparatus inserted in the charging stand from the front, it is possible to see a color, a pattern or an image of character that is applied to the cover. At this time, a color, a pattern or an image of character that is applied to an outer circumference surface (front) of the charging stand can be also seen.
Rechargeable battery protection apparatus
A rechargeable battery protection apparatus includes: a battery module including a plurality of unit cells coupled in series between a positive terminal and a negative terminal, and configured to be coupled to a charger through a first external port coupled to the positive terminal and a second external port coupled to the negative terminal to charge the plurality of unit cells; a pack fuse on a high current path between the battery module and the charger; and a connector that forms a bypass path that bypasses a current between a first unit cell and a second unit cell among the plurality of unit cells to the pack fuse depending on an internal pressure of the battery module.
Systems and methods for compensating current in a battery module
A battery module includes: a battery pack including multiple cells; control circuits corresponding to the cells, each control circuit including a control unit for managing the corresponding cell and a compensation unit for generating a corresponding compensation current such that the sum of the corresponding consumed current and the corresponding compensation current is equal to a target total current, where the control circuits include a first control circuit and a second control circuit, where the first control circuit includes a first control unit operating with a first consumed current, the second control circuit includes a second control unit operating with a second consumed current, and where the first control circuit conditionally generates a first compensation current and the second control circuit conditionally generates a second compensation current based on a comparison of the first consumed current and the second consumed current.
Testing device power induced by current transformer
A system includes a testing device, a current clamp, and circuitry for converting an electrical current. The testing device is configured to measure a characteristic relating to electrical equipment and to transmit data representing the measured characteristic to a remote computing device. The electrical equipment includes an electrical conductor carrying an electric current. The current clamp forms a current transformer. The current clamp is configured to be clamped around the electrical conductor and the current transformer is configured to induce an electric current from the electrical conductor. The circuitry is configured to convert the induced electric current to a direct current that is usable to power the testing device.
Secure wireless energy transfer
A wireless receiver for use with a first electromagnetic resonator coupled to a power supply, the first electromagnetic resonator having a mode with a resonant frequency ω1, an intrinsic loss rate Γ1, and a first Q-factor Q1=ω1/2Γ1, and the wireless receiver includes a load configured to power a system using electrical power, a second electromagnetic resonator configured to be coupled to the load and having a mode with a resonant frequency ω2, an intrinsic loss rate Γ2, and a second Q-factor Q2=ω2/2Γ2, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator; and a communication facility to confirm compatibility of the first and second resonators and provide authorization for initiation of transfer of power.
Power transmission apparatus, power transmission device and power reception device for power transmission apparatus
In a power transmission apparatus which transmits power from a power transmission device to a power reception device in a noncontact manner, the power transmission device includes a first main body supporting the power reception device on adjacent first and second surfaces, and a power transmission coil formed by planar coils which are respectively symmetrically disposed on the first and second surfaces with respect to an intersection between the first and second surfaces inside the first main body, and includes an extension region in which an occupation area of the coils gradually increases while becoming distant from a part close to the intersection. The power reception device includes a second main body that includes third and fourth surfaces which respectively face the first and second surfaces, and a power reception coil disposed in the second main body so as to correspond to the third and fourth surfaces.
Voltage control apparatus, voltage control method, and power adjustment apparatus
A voltage control apparatus includes: a voltage value obtainment unit configured to obtain voltage values at the one or more voltage measuring points; an impedance obtainment unit configured to obtain a system impedance from a distribution substation to each of power adjustment apparatuses; a control variable calculating unit configured to calculate a control variable including at least one of (i) a value corresponding to an allowable upper limit of a voltage value at the first voltage measuring point and (ii) a value corresponding to an allowable lower limit of the voltage value at the first voltage measuring point, based on the voltage values at the one or more voltage measuring points and the system impedances; and a notification unit configured to notify the power adjustment apparatuses of the calculated control variable.
Power converter module, photovoltaic system having a power converter module, and method for operating a photovoltaic system
A power converter module includes: a DC input terminal configured to receive an input voltage from a DC source; an intermediate circuit coupled directly to the DC input terminal; a DC output terminal configured to provide an output direct voltage; an AC output terminal configured to provide an output alternating voltage; a DC converter coupled between the intermediate circuit and the DC output terminal in order to receive an input voltage from the intermediate circuit; an inverter coupled between the intermediate circuit and the AC output terminal in order to draw an input voltage from the intermediate circuit; and a regulating device coupled to the DC converter and to the inverter, the regulating device being configured to regulate the input voltage of the inverter and of the DC converter to a maximum power drain from the DC source.
Controlling dynamic systems by measuring the no-load voltage of a photovoltaic generator
The dynamic system is part of a dynamic apparatus having at least one photovoltaic generator, at least one battery and at least one device for controlling the dynamic apparatus. The method for controlling the dynamic system on the basis of sunlight involves electrically isolating the photovoltaic generator from the battery, reading the no-load voltage of the photovoltaic generator, determining a numerical value on the basis of the no load voltage, corresponding to the no-load voltage reading, and comparing the predetermined numerical value with at least one reference threshold value. When the predetermined numerical value corresponds to a value range limited by at least one such reference threshold value the dynamic system is controlled so as to thereon confer a configuration corresponding to the value range.
Methods and systems for reducing the impact of a generator short circuit in a wind turbine
A method is provided for reducing an impact of an unbalanced short circuit event that occurs in a polyphase permanent magnet generator of a wind turbine. According to the method, an unbalanced short circuit event is detected in the generator of the wind turbine, and, in response to detecting the unbalanced short circuit event, at least one phase of the generator is shorted at a switch-point between the generator and a converter of the wind turbine to create a balanced short circuit in the generator. By doing so, the torque response of the generator is altered to avoid high amplitude torque oscillations that would otherwise occur as a result of the unbalanced short circuit event.
Personal electronic injury protection device
The personal electrical injury protection device includes a first wireless transmitter, a first receiver, and a second receiver. The first wireless transmitter is adapted to be worn on an end user. The first wireless transmitter is in wired connection with at least one electrical sensor. The at least one electrical sensor is adapted to be attached to a limb of said end user, and is able to detect a change in voltage, and upon doing so shall signal the first receiver. The first receiver is in wireless communication with the first transmitter, and includes a speaker, and at least one light. The second receiver is adapted to turn off the main circuit breaker in order to stop electricity to be transmitted to all applicable circuits, and of which an end user has come into contact.
Flat cable reeling device
An object of the present invention is to provide a flat cable reeling device reducing a size. A flat cable reeling device includes a case housing a flat cable, a center shaft provided in the case and fixing a first end side of the flat cable, a rotating table rotatively provided, centering on the center shaft, and a biasing means biasing the rotating table in a reeling direction of the flat cable. The rotating table is provided with a plurality of rollers adapted to reel the flat cable from an outside of the case along a circumferential direction of the rotating table. The rotating table is integrally provided with a disk-like table main body and a plurality of guiding portions formed to project from an upper surface of the table main body, and the plurality of guiding portions rotatively support the respective rollers and guide the respective rollers to be slidable in a radial direction of the rotating table.
Junction box assemblies with spaced apart walls to hold a corrugated tube
An electric junction box assembly configured to store an electric component is provided. The electric junction box assembly includes a corrugated tube configured to hold a wire for supply power. The electric junction box assembly includes a junction box having an outer wall and a bottom wall. The outer wall includes an outer opening for receiving the corrugated tube. The junction box includes a plurality of inner walls. Each of the inner walls is spaced apart from each other so as to form an inner chamber and each inner wall further including an inner opening configured to receive the corrugated tube. Each inner chamber includes a drain hole so as to allow fluids to escape and prevent the electric components from being damaged by water or humidity.
Method for routing wire bundles from a rotor shaft of a turbomachine
A method for routing wires from a rotor shaft of a turbomachine includes routing a plurality of wire bundles through an end portion of the rotor shaft and into an annular extension shaft which is coupled to the end portion of the rotor shaft, threading each wire bundle through a corresponding thru-hole of a plurality of thru-holes defined in an annular wire barrel, inserting the wire barrel into the extension shaft and fixedly connecting the wire barrel to the extension shaft.
Method of forming an igniter circuit and structure therefor
In one embodiment, an igniter circuit may include a circuit to determine if the current through a load switch exceeds a threshold value, and to responsively disable a second switch that couples DC power to the igniter circuit.
Optical semiconductor element and method of manufacturing the same
A quantum dot laser includes a GaAs substrate, a quantum dot active layer which has a barrier layer of GaAs and quantum dots, a GaAs waveguide core layer which is joined to the quantum dot active layer, and a lower cladding layer and an upper cladding layer which sandwich the quantum dot active layer and the GaAs waveguide core layer. The GaAs waveguide core layer extends from a front end of the quantum dot active layer and has a thickness which gradually decreases in a direction to depart from the front end of the quantum dot active layer, a refractive index of a first cladding layer is higher than a refractive index of a second cladding layer. With this structure, expansion of the optical mode diameter that is more than necessary is inhibited to prevent leakage of light, thereby obtaining sufficient optical output.
An optical module includes: a semiconductor laser emitting laser light; an optical device having a butt joint interface; an optical amplifier amplifying the laser light passed through the optical device; an equivalent resonator length adjustor inserted between the optical amplifier and the optical device; a wavelength spectrum measuring device measuring a wavelength of light output from the optical amplifier; and a refractive index adjustment circuit controlling a current applied to the equivalent resonator length adjustor based on a result of measurement performed by the wavelength spectrum measuring device to adjust a refractive index of the equivalent resonator length adjustor. Parasitic oscillation light in a plurality of Fabry-Perot modes is generated as the butt joint interface is one of reflection ends. The refractive index adjustment circuit adjusts the refractive index so that none of peak wavelengths of the parasitic oscillation light coincides with an oscillation wavelength of the semiconductor laser.
Diode control device
A diode control device include a first terminal for receiving a first power supply voltage and a second terminal for receiving a second power supply voltage. A circuit of the diode control device applies a regulated voltage on the anode of the diode in response to a control voltage. The control voltage is equal to a preset voltage when a reference voltage is less than or equal to zero. Conversely, when the reference voltage is greater than zero, the control voltage is equal to the sum of the present voltage and a difference between cathode voltage of the diode and the reference voltage.
In a laser device, a different refractive index region 6B of a photonic crystal layer is arranged at a lattice point position of a square lattice. In the case where a plane shape of the different refractive index regions 6B is a nearly isosceles right triangle, two sides forming a right angle extend along longitudinal and horizontal lateral lines of the square lattice. A direction parallel to or vertical to an oblique side of the triangle and a direction of polarization in the periodic polarization inversion structure of a nonlinear optical crystal NL are the same.
Laser ignition system
A laser ignition system, in particular for an internal combustion engine, including a vertical emitter and a laser-active crystal, the laser-active crystal being doped in at least some areas using ytterbium, the ytterbium-doped area having a length of 200 μm to 7000 μm. The monolithic laser is based on a YAG or LuAG host crystal having 3 differently doped areas: a laser-active ytterbium-doped area, an undoped area which determines the resonator length and therefore the pulse duration, and a chromium-doped or vanadium-doped area for the passive Q-switch. The resonator is delimited by 2 mirrors.
Laser amplification device
Plural signal beams enter a planar waveguide laser amplifier from different directions to follow different paths therein, which reduces a region not contributing to amplification where no signal beam passes. Plural signal beams follow different paths in the planar waveguide, and a second signal beam utilizes the gain of a portion of the planar waveguide that a first signal beam cannot utilize. By this configuration, a region not contributing to amplification of the signal beams in the planar waveguide laser amplifier can be reduced, causing to efficiently amplify plural signal beams.
A plurality of connector (40) is configured to be maintained in a state of being aligned in an aligned direction. The connectors (40) each include a housing (41) that may be angularly displaced about an axis parallel to a fitting direction with a counterpart housing (71). A plurality of the housings (41) are aligned in a direction intersecting the fitting direction and an angular displacement direction, and each has a through portion (52) through which electrical wires (100) for aligning the housings (41) in the aligned direction penetrates. A relieving portion (90) having a shape retracting in a direction for avoiding interference with the electrical wires (100) when the housings (41) are angularly displaced is provided on an inner face of each through portion (52).
Mount for portable electronic devices
A mount for a portable electronic device is disclosed comprising: a support member arranged to engage against a surface of a device mounted thereto, the support member comprising a power connector having one or more electrical contacts to deliver electrical power to the device. The mount further comprises a first ring member coupled to the support member and a second ring member configured for attachment to a surface. The first ring member is configured to be rotatable relative to the second ring member, and the surface of the first ring member is provided adjacent to the surface of the second ring member. The first and second ring members also provide an aperture to enable an electronic connection to pass through the aperture to the power connector of the support member.
Electrical busway splice connector
A splice connector for a busway system utilizes individual connectors made of a conductive material and having a u-shaped cross-section that fit over ends of a pair of busbars to be connected to each other, and within which are mounted multi-contact louvers that extend the length of the connectors to establish a low impedance electrical connection between the connector and the respective busbars. The louvers are secured in place by a dovetail groove that retains the louvers within the connectors and causes the individual contact sections of the louvers to bow outwardly so as to press against the busbars when the connector is fitted over the busbars. The connectors are snapped into insulative housing halves or sections that align the connectors with the busbars, and that provide isolation between horizontally aligned pairs of connectors.
Blind-mate connector having sidewalls with notches for alignment
A blind-mate connector (10, 20, 100) has a barrel (11, 21, 105), a base (12, 22, 110) at the back end of the barrel, an insulator (17, 27) mounted in the base, and a center conductor (15, 25) extending from near the front end of the barrel, through the insulator, and extending beyond the back end of the base, with the center conductor being held by the insulator. One type has sidewalls (13, 23) extending rearwardly from the back end of the base, and alignment notches (14, 24) on the sidewalls, the alignment notches extending only partially from the back ends of the sidewalls toward the base. Another type has alignment tabs (125) extending rearwardly from the back end, and sidewalls (130) extending rearwardly from the back end of the base, the first tab being above the first sidewall.
Electrical connector having a sloping outer shell and a light emitting member
A plug connector assembly (1) adapted to plug into a receptacle in two reversed directions, includes a mating member (10), a cable (30) electrically connected with the mating member, and an outer shell (50) including a main body (51), and a strain relief member (52) disposed at a rear end of the main body and enclosing the cable. The main body includes a front portion (510) enclosing a rear end (102) of the mating member, and a rear portion (511) opposite to the front portion and connected with the strain relief member. A thickness of the front portion is smaller than a thickness of the rear portion measured along a vertical direction. A thickness of the outer shell measured along the vertical direction is gradually increased in a constant slope along a front to rear direction
Electrical receptacle connector
An electrical receptacle connector includes a metallic shell, an insulated housing, a plurality of first receptacle terminals, a plurality of second receptacle terminals, and a rear cover plate. The insulated housing is received in the receiving cavity. The first receptacle terminals and the second receptacle terminals are respectively disposed at an upper portion and a lower portion of the insulated housing. The rear cover plate includes a baffle plate and a connecting portion formed at one of two sides of the baffle plate and connected to the rear of the metallic shell. The rear cover plate is closeable and openable, so that the soldering condition between the first receptacle terminals and contacts of a circuit board can be checked when the rear cover plate is opened.
Safety electrical lockout arrangement
A lockout frame arrangement for an electrical outlet box arrangement, comprising an electrical outlet box arranged for receipt of electrical outlets, a cover plate attachable to an open side of the electrical outlet box, for securement of electrical sockets therewithin, with a rectilinear outer cover capturing frame securely sandwiched between the cover plate and the open side of the electrical outlet box. An outer protective cover plate is matingly attached to and securable within a perimeter of the outer cover capturing frame.
Electrical connector having a metallic reinforcing member
An electrical connector assembly includes: an insulative housing defining a receiving room; an arrangement module assembled on a rear end of the insulative housing and defining a riveting slot on a rear end thereof; a number of contacts retained in the receiving room and exposing to a rear end of the arrangement; a metal case enclosing the insulative housing and the arrangement module and having a riveting arm riveted into the riveting slot to fix the metal case on the insulative housing; and a reinforcing member assembled in the arrangement module and disposed near the riveting slot.
Strain relief element for a cable and plug with strain relief element
A strain relief element for a cable. The strain relief element has a clamping collar in form of an at least partially closing ring for clamping the cable sheathing arranged in a clamping opening of the ring. The clamping collar having first and second half-ring clamping elements with a partial clamping opening each and hinged together through a first hinge. The clamping opening being defined by the two half-ring clamping elements folded towards each other and fixed with a clamping force executed by a clamping element. The strain relief element has a fixing collar means in form of an at least partially closing ring for fixing a corrugated tube surrounding the cable arranged in a fixing opening of the ring, the fixing collar having first and second half-ring fixing elements with a partial fixing opening each and hinged together through a second hinge.
Water-proof connector for an electronic device
An electronic device includes a housing including an outer surface and an inner surface, the housing including an opening through which the outer surface and the inner surface communicate with each other. The external connection terminal also includes a female connector including a receiver configured to receive at least a part of a male connector inserted externally, the female connector including a conducting portion located to face the inner surface of the housing and electrically connectable to the male connector through the opening, and a seal located around the opening and located obliquely with respect to a direction in which the male connector is received.
Wire connectors and wire connector kits
A wire connector kit and a method of protecting an electrical connection comprising a wire connector and a source of expandable sealant wherein the expandable sealant is injected into a wire connector after the electrical connection has been formed with the expandable sealant undergoing an in situ internal expansion from a site proximate the electrical connection to encapsulate and protect the electrical junction from the environment or through forming a sealant plug in a housing through an in situ expansion of the sealant plug to protect an electrical connection cocooned within the housing by the sealant plug.
Port including movable connector
A port of a computing system includes a connector movable between a recessed position and an extended position. The connector is extended from the recessed position to the extended position in response to a plug.
Electrical contact having cleaning system
Embodiments disclose an electrical contact including a metal housing and a fixed contact part, which is attached to the metal housing and has a contact surface that, during the attachment, is located within the metal housing, and a contact tab located outside the metal housing. The electrical contact includes a movable contact part, which can be inserted into the metal housing to form an electrical contact together with the contact surface of the fixed contact part. A cleaning system is provided in that at least one scraping edge is provided adjoining the contact surface, the movable contact part making contact with said scraping edge during insertion. A surface of the movable contact part passes over the scraping edge to remove possible dirt particles.
Electric contact and socket for electrical part
An electric contact for preventing a terminal of an electrical part and the electric contact from sticking to each other after a continuity test to improve the durability of the electric contact; and a socket for electrical part using the electric contact. In the electric contact according to the preferred embodiment of the present invention, a foundation layer composed primarily of Ni, a surface layer composed primarily of Pd and Ag, and an outermost layer composed primarily of Sn or Au are formed on a surface of an electrically-conductive base material.
Package structure of power module
A package structure of a power module includes an insulation frame, a first circuit substrate, an insulation cover, plural first pins, plural posts and a fastening element. The insulation frame includes a sidewall and a first coupling part. The first coupling part is externally protruded from the sidewall. The first coupling part includes a first mounting structure. The first circuit substrate is combined with a bottom part of the insulation frame. The insulation cover is combined with a top part of the insulation frame. The insulation cover includes a second coupling part. The second coupling part includes a second mounting structure. The plural posts are embedded in the at least one first coupling part of the insulation frame, and partially penetrated through the second coupling part. The fastening element is connected with the first mounting structure and the second mounting structure.
A battery terminal 1 includes a terminal main body 2 including an upper plate portion 10 and a lower plate portion 60 provided separately from the upper plate portion 10, the upper plate portion 10 including a upper plate mounting portion 20 having an upper plate mounting hole 21 through which a battery post 140 is to be inserted and an upper plate fastening portion 30 connected to the upper plate mounting portion 20, the lower plate portion 60 including a lower plate mounting portion 70 having a lower plate mounting hole 71 through which the battery post 140 is to be inserted and a lower plate fastening portion 80 connected to the lower plate mounting portion 70, and a bracket 100 configured to deform the upper plate mounting hole 21 and the lower plate mounting hole 71 to reduce them in diameter by being mounted on the terminal main body 2.
Joint sleeve for high temperature insulated bus pipes
A joint sleeve is proposed for connecting busbar sections, each having connectable contacts. In an embodiment, the sleeve includes—a non-magnetic case defining butt ends occluded with non-magnetic flanges each having a hole securing the respective busbar section therein,—a fire-resistant coating covering the case,—an electrically insulated supporting tube disposed within the case and defining a chamber therein, enclosing the connectable contacts,—a grounding screen mounted on the supporting tube, and—a fire-resistant layer disposed between the case and the screen capable of thermal expansion upon heating thereof, thereby improving fire-resistance. Instead of the fire-resistant layer, another embodiment includes an annular air chamber formed between the case and the supporting tube, while the annular chamber is in communication with hollows, and the supporting tube is closed by another pair of flanges with holes securing the respective busbar sections. The sleeve allows for improving fire-safety of power consuming facilities.
Wall mount component and wire clamp connector thereof
A wire clamp connector includes a connecting board, a plurality of conductive sheets, a plurality of conductive mounts, and a plurality of wire clamp components. The conductive sheets are disposed at one surface of the connecting board. The conductive mounts are disposed at the top of the connecting board and connected to the conductive sheets. The wire clamp components are disposed at the respective conductive mounts. Each of the wire clamp components includes a lock member and a clamping piece. The lock member pushes the clamping piece to push against a wire, so that the wire can be firmly positioned with the corresponding conductive mount. Furthermore, the wire clamp connector may be applied to the wall mount component so as to be mounted on a wall and connected to an electronic product.
Connector with spring contact
The disclosed embodiments relate generally to a modular connector for a multi-conductor ribbon cable provided for power and data transmission to a network of devices. The modular connector is coupled to the conductors in the ribbon cable by insulation displacement members. When the connector is attached to the ribbon cable and disconnected from a device a continuous circuit path is provided and when connected to a device configurable circuit paths are provided.
A repair sleeve has first and second end portions, each of which has a substantially cylindrical outer surface. The end portions are bored to receive a cable of a particular diameter. The inner surface of each end portion may be stepped or tapered. The center portion of the repair sleeve, between the two end portions, has an interior diameter substantially larger than the nominal diameter of the cable so that the repair sleeve can be use on a frayed cable or a cable with a failing splice. The repair sleeve is split longitudinally into two interlocking portions, which, when separated, allows the damaged cable or failing splice under repair to be inserted into a first one of the portions in a radial direction. The other portion is then inserted into the first portion and the repair sleeve is swaged onto the cable.
Quadri-polarized antenna radiator, quadri-polarized antenna and quadri-polarized multi-antenna array
A quadri-polarized antenna oscillator, a quadri-polarized antenna, and a quadri-polarized multi-antenna array are provided. The quadri-polarized antenna oscillator comprises four polarized oscillators, wherein midpoints of the four polarized oscillators are coincident; a polarization direction of a first polarized oscillator is a horizontal direction; a polarization direction of a second polarized oscillator is perpendicular to the horizontal direction; a polarization direction of a third polarized oscillator has a 45° angle with the horizontal direction; and a polarization direction of a fourth polarized oscillator has a −45° angle with the horizontal direction. By integrating four polarized oscillators having different polarization directions into one antenna oscillator, the width of the MIMO multi-antenna is reduced, and the horizontal space between two columns of dual-polarized antennas is not required any more, thus the deployment of LTE and 4G networks are favorably implemented without extra space requirement to the top surface of a base station.
Dual-polarized antenna radiating element and base station antenna
Embodiments of the present invention disclose a dual-polarized antenna radiating element. The dual-polarized antenna radiating element includes four radiators and a connecting part, where the four radiators are arranged in a cross shape, with each two of them oppositely disposed, the four radiators form a radiating plane, one end of each of the radiators is connected to the connecting part, and the other end extends in a direction away from the connecting part. Each of the radiators includes a first radiating arm and a second radiating arm, where the first radiating arm and the second radiating arm are asymmetric. In the embodiments of the present invention, a new resonant frequency band is added by using asymmetric radiating arms, thereby broadening the width of a resonant frequency band, so that the antenna radiating element can adapt to a broader resonant frequency band.
Low-cost diplexed multiple beam integrated antenna system for LEO satellite constellation
A multiple beam integrated antenna system for a satellite including a support structure having an alignment plate. The antenna system further includes a plurality of feed horns mounted to the alignment plate, where each feed horn includes a plurality of tapered sections that support propagation modes for both up-link signals and down-link signals. A septum polarizer is mounted to an input end of each feed horn that converts linearly polarized signals to circularly polarized signals for the up-link signals and converts circularly polarized signals to linearly polarized signals for the down-link signals. A Y-shaped waveguide is coupled to each of the polarizers and includes separate receive reject and transmit reject filters so as to keep the up-link signals and the down-link signals from interfering with each other. Flex waveguides couple the transmit leg and the receive leg of each Y-shaped waveguide to RF modules.
Multi-panel antenna system
A multi-panel antenna system may be disassembled and packaged into a container with substantially smaller dimensions than the assembled antenna system. The antenna system may include two or more reflector panels, such that a respective reflector panel can include a curved surface that may form a portion of a parabolic reflector, and can include an inter-panel fastener operable to align a side surface of the respective reflector panel with a side surface of another reflector panel. The antenna system may also include a mounting assembly that may be used to fasten a convex side of the two or more reflector panels to a surface external to the antenna system, and a feed assembly that may be attached to the mounting assembly.
Method for automatically adjusting tunable passive antennas, and automatically tunable antenna array using this method
The invention relates to a method for automatically adjusting a plurality of tunable passive antennas, for instance a plurality of tunable passive antennas of a radio transceiver using several antennas simultaneously. The invention also relates to an automatically tunable antenna array using this method. An automatically tunable antenna array of the invention has 4 user ports, and comprises: 4 tunable passive antennas, the 4 tunable passive antennas operating simultaneously in a given frequency band and forming a multiport antenna array; 4 sensing units; 4 feeders; a signal processing unit delivering a tuning instruction; and a tuning control unit, the tuning control unit receiving the tuning instruction from the signal processing unit, the tuning control unit delivering tuning control signals to the tunable passive antennas, the tuning control signals being determined as a function of the tuning instruction.
An antenna device of the present embodiment includes: a first conductive layer connected to a ground potential, a semiconductor device provided above the first conductive layer, a second conductive layer provided above the semiconductor device, a first via connecting the second conductive layer and the first conductive layer, a third conductive layer provided above the second conductive layer, a second via passing through the first opening, and an antenna provided above the third conductive layer. A dielectric is provided between the second conductive layer and the semiconductor device, between the third conductive layer and the second conductive layer, and between the antenna and the third conductive layer. The second conductive layer includes a first opening. The second via connects the third conductive layer and the first conductive layer.
Two-dimensionally electronically-steerable artificial impedance surface antenna
A method and apparatus for electronically steering an antenna system. The apparatus comprises a dielectric substrate, a plurality of radiating spokes, and a number of surface wave feeds. The plurality of radiating spokes is arranged radially with respect to a center point of the dielectric substrate. Each radiating spoke in the plurality of radiating spokes forms a surface wave channel configured to constrain a path of a surface wave. Each of the number of surface wave feeds couples at least one corresponding radiating spoke in the plurality of radiating spokes to a transmission line that carries a radio frequency signal.
Vehicle-mounted antenna device
An antenna device that is built inside a hollow body fixed to a vehicle comprises a composite antenna element that has an antenna length corresponding to a first frequency band and is bent so as to also function as a capacitive antenna corresponding to a second frequency band and to improve an antenna effective capacitance and that is disposed in a substantially planar manner. The composite antenna element is disposed such that a planar direction thereof is inclined toward a vertical-direction side with respect to a metal body of the vehicle, and is offset-disposed to a left or right side in the hollow body with respect to a vehicle traveling direction, and is grounded in a metal portion of the vehicle near a position where the composite antenna element is disposed.
Antenna structure and wireless communication device using the same
An antenna structure includes a metal member, a first antenna, and a second antenna. The second antenna includes a first portion, a second portion, and a third portion. Both of the second portion and the third portion are connected to the first portion. Both of the first portion and the third portion are spaced from the first antenna, and are coupled with the metal member.
Switch board of blade server and port configuring method thereof
A switch board of a blade server, a port configuring method thereof, and a blade server. The switch board includes a port configuring unit and a plurality of ports, where the port configuring unit is configured to divide the switch board into more than one virtual sub-switch-board, allocate the ports to the virtual sub-switch-boards, and configure each port of each virtual sub-switch-board to a first-type port or a second-type port, where the first-type port and the second-type port have different bandwidth; and each of the ports is configured to connect a server blade according to a configuration on the port configuring unit. The technical solutions of the present invention can meet a requirement for flexible port bandwidth configuration.
Circuit on a thin carrier for use in hollow conductors and a manufacturing method
A substrate-based circuit (31) provides a carrier substrate (2), wherein a bond layer (5) is embodied on at least one part of the carrier substrate (2), and wherein a contact layer (6) which forms at least one conductor line (7) and/or at least one antenna element (8) is embodied on at least one first part (51) of the bond layer (5). The carrier substrate (2) provides at least one fastening element (20), which is deposited at the outer region of the carrier substrate (2) and projects beyond the outer region of the carrier substrate (2).
Adjustable length battery electrolyte probe
Disclosed herein is an apparatus. The apparatus includes a sensor head section, a base section, a telescoping section, and an electronic component. The base section is connected to the sensor head section. The telescoping section includes a first end and a second end. The telescoping section is connected to the base section. The electronic component is proximate the first end of the telescoping section. The electronic component is protected from making contact with high current, electrically conductive battery elements and configured to sense battery parameters.
A battery pack including a plurality of battery arrays, each battery array including unit batteries that each have a terminal, the plurality of battery arrays being stacked in a first direction; an insulator on at least one side of the battery arrays, terminals of the unit batteries being on the one side; and a sensing bar on the insulator, wherein the insulator includes at least one opening therein, at least one terminal being exposed through the at least one opening, and the sensing bar is electrically connected to the at least one terminal exposed through the at least one opening to sense a state of the battery array.
Storage system and output controller
A connection mode of a plurality of arbitrarily connected storage units is detected and the plurality of storage units is controlled according to the detected connection mode.Six storage modules MOD1 to MOD6 are connected in series. A total voltage V(Total) and individual output voltages V(1) to V(6) of respective storage modules are supplied to an output controller ICNT. A controller PR of the output controller ICNT determines the connection mode depending on whether a determination equation is satisfied. When the number of storage modules is set to N, the total output voltage is set to V(Total), the individual output voltages are set to V(1), V(2), . . . , and V(N), and the number of parallels of the connection mode is set to M, (determination equation: V(1)=V(2)= . . . =V(N)=(1/M)×V(Total)) is used. When the determination equation is satisfied, (N/M) parallel M series is determined.