Shield case and antenna set comprising it
The present invention relates to a shield case and an antenna set comprising the same, wherein the shield case includes a shield surface for shielding embedded electronic elements against electromagnetic wave, a fixing unit coupled with a substrate mounted with the electronic elements, signal receivers for receiving a signal of desired frequency, and two strip antennas connected to a border of the shield surface, each antenna facing the other across the shield surface.
Cooling systems and heat exchangers for cooling computer components
Computer systems having heat exchangers for cooling computer components are disclosed herein. The computer systems include a computer cabinet having an air inlet, an air outlet spaced apart from the air inlet, and a plurality of computer module compartments positioned between the air inlet and the air outlet. The air inlet, the air outlet, and the computer module compartments define an air flow path through the computer cabinet. The computer systems also include a heat exchanger positioned between two adjacent computer module compartments. The heat exchanger includes a plurality of heat exchange elements canted relative to the air flow path.
Metal injection molded heat dissipation device
A heat dissipation device is provided. The heat dissipation device includes an integrated heat spreader and a base plate coupled to the integrated heat spreader, wherein the base plate comprises a plurality of metal pellets to dissipate heat from the integrated heat spreader.
Ground-based heat sink facilitating electronic system cooling
Cooling systems and methods are provided which include a heat sink having a housing with a compartment, a coolant inlet, and a coolant outlet. The housing is configured for a coolant to flow from the coolant inlet through the compartment to the coolant outlet, wherein the coolant is transferring heat extracted from one or more electronic components. The heat sink further includes one or more heat pipes having a first portion disposed within the compartment of the housing and a second portion disposed outside the housing. The heat pipe(s) is configured to extract heat from the coolant flowing through the compartment, and to transfer the extracted heat to the second portion disposed outside the housing. The second portion outside the housing is disposed to facilitate conducting the extracted heat into the ground.
Cooling system and device housing apparatus using the same
A cooling system comprising: an evaporator for evaporating a refrigerant by performing heat exchange with outside air; a condenser for condensing a gas refrigerant into a liquid refrigerant by making a refrigerant and a cooling medium perform heat exchange with each other; a gas refrigerant pipe and a liquid refrigerant pipe connecting the evaporator and the condenser; and the evaporator including: an upper part header provided in a highest position of the evaporator, and connected with the condenser by the gas refrigerant pipe, through the gas refrigerant pipe a gas refrigerant flowing; a lower part header provided in a lowest position of the evaporator, and connected with the condenser by the liquid refrigerant pipe, through the liquid refrigerant pipe a liquid refrigerant flowing; a middle header provided in an intermediate position between the upper part header and the lower part header, and connected with the condenser by the liquid refrigerant pipe, through the liquid refrigerant pipe the liquid refrigerant flowing; an upper part evaporator, arranged between the upper part header and the middle header, including an upper part steam generating tube having a first flow path for leading a refrigerant of the middle header to the upper part header while making the refrigerant of the middle header perform heat exchange with outside air and having a second flow path for leading a refrigerant of the lower part header to the upper part header while making the refrigerant of the lower part header perform heat exchange with outside air; and a lower part evaporator, arranged between the lower part header and the middle header, including a lower part steam generating tube having a third flow path inserted into the middle header while making a refrigerant of the lower part header perform heat exchange with outside air, the lower part steam generating tube communicated with the second flow path of the upper part steam generating tube.
Load sharing device and I/O architecture against imparted abuse loads
A bracket configured to be interposed between the housing of a mobile electronic device and an electrical receptacle that is disposed in the mobile electronic device. The bracket includes a bracket body, an elongated opening through the bracket and a sheath surrounding portions of the bracket body. The bracket body includes an elongated protrusion extending in a front direction from the front face of the bracket body and a pair of fastener accommodations extending through the bracket body, each fastener accommodation disposed on opposite sides of the elongated protrusion. The sheath includes a first portion surrounding a portion of the bracket body elongated protrusion and a second portion including a pair of fastener openings.
Mobile device in which the interior switch element is protected by the housing
The invention relates to a mobile device (10) for activating at least one switch element (40) that is arranged inside a housing (11), having a key unit (20) that comprises at least one contact means (21), wherein the contact means (21) is aligned to the interior (12) of the housing (11) in order to activate the switch element (40), and having a receptacle (13) arranged on the housing (11) to which the key unit (20) is fastened. According to the invention, the receptacle (13) comprises a force transfer region (14) that is arranged between the key unit (20) and the switch element (40) such that the interior (12) of the housing (11) is protected from the outer region (2).
Manufacturing method for multi-layer circuit board
A manufacturing method for a multi-layer circuit board includes the following steps. Firstly, a substrate having two surfaces opposite to each other and a via connecting there between is provided. Next, a patterned circuit layer is formed on each of the surfaces by using the via as an alignment target. Each patterned circuit layer includes a concentric-circle pattern. Next, a first stacking layer is formed on each of the surfaces. Then, a first through hole penetrating regions of the first stacking layer and the substrate where a first concentric circle from the center of the concentric-circle pattern is orthogonally projected thereon is formed. Next, a second stacking layer is formed on each first stacking layer. Afterward, a second through hole penetrating regions of the first, the second stacking layers and the substrate where a second concentric circle from the center of the concentric-circle pattern is orthogonally projected thereon is formed.
Method of manufacturing a printed circuit board with circuit visible
A printed circuit board with circuit visible includes a wiring layer, a first adhesive layer, a first dielectric layer, and a cover film, which are stacked in described order, the wiring layer comprising at least one electrical contact pad. The cover film has at least one opening corresponding to the electrical contact pad. The cover film includes a second dielectric layer and a second adhesive layer. A flow initiation temperature of the first adhesive layer is in a range from 85 degrees centigrade to 90 degrees centigrade, and a hardening temperature of the first adhesive being lower than 150 degrees centigrade.
Environmental sensitive electronic device package
An environmental sensitive electronic device package includes a first substrate, a second substrate, an environmental sensitive electronic device, at least one side wall barrier structure, and a filler layer. The first substrate has at least one predetermined flexure area. The second substrate is located above the first substrate. The environmental sensitive electronic device is located on the first substrate and between the first substrate and the second substrate. The side wall barrier structure is located between the first substrate and the second substrate and surrounds the environmental sensitive electronic device. The side wall barrier structure has at least one flexure stress dispersing structure that is located in the predetermined flexure area. The filler layer is located between the first substrate and the second substrate and covers the side wall barrier structure and the environmental sensitive electronic device.
Implementations of twisted differential pairs on a circuit board
A twisted differential conductor pair is formed on a circuit board that includes first-third conductors. The second conductor includes first-third portions. The second portion of the second conductor extends between an end of the first conductor and an end of the third conductor, and couples an end of the first portion of the second conductor to an end of the third portion of the second conductor. A solder mask layer is formed over the first, second, and third conductors on the circuit board. An end of the first conductor and the end of the third conductor are exposed through the solder mask layer. The exposed end of the first conductor is coupled to the exposed end of the third conductor over the solder mask layer with a bridge. This configuration may be repeated to create multiple twists along the twisted differential conductor pair.
Transversely actuated piezoelectric bellows heatsink
A transversely actuated piezoelectric bellows heatsink (TAPBH) has a linkage that includes multiple rigid sections coupled by flexible joints. A first fixed support is affixed to a first end of the linkage, and a piezoelectric element is mechanically coupled to a second end of the linkage. A diaphragm is mechanically affixed to a first side of the linkage, and an air enclosure, having an open area, is affixed to the diaphragm. A second fixed support is mechanically affixed to a second side of the linkage. Cyclic power from the power supply causes the piezoelectric element to expand and contract to force the linkage to expand and contract in an analogous manner, thus causing the diaphragm to move in an amplified motion to cause air to enter and be expelled from the air enclosure via air valves.
Plasma torch with reversible baffle
A plasma arc torch includes an annular baffle defining distinct faces A, B, C, and D. Faces A and C are opposite from each other, and faces B and D are opposite from each other. First passages for fluid flow extend between the faces A and C, and second passages extend between the faces B and D. The baffle is installable in an annular space between an inner wall and an outer wall, in either of two orientations. In a first orientation, the first passages are open to fluid flow and the second passages are closed by engagement of the inner and outer walls with the faces B and D, and in a second orientation, flipped over relative to the first orientation, the second passages are open to fluid flow and the first passages are closed by engagement of the inner and outer walls with the faces A and C.
Control arrangement for controlling an atmosphere generating device
The present invention relates to a control arrangement for controlling an atmosphere generating device, comprising a control device (102) having a control surface (110), and a control object (104, 106) adapted to be freely-positioned onto the control surface, the control object comprising identification means (116), wherein the control device comprises a control unit (114) adapted to identify the control object, to receive relative positioning information from the control surface relating to the positioning of the control object, and to output control data corresponding to the placement information for controlling the atmosphere generating device. By means of the invention it is provided an intuitive user interface in which the user is provided with a flexible solution in which not only repositioning of the control object onto the surface of the control device influence the atmosphere, but also the identity of the control object.
Systems, methods, and apparatuses for using a high current switching device as a logic level sensor
A line voltage signal at a first voltage and a first current supplied by a line voltage switching device responsive to a sensed or detected event can be provided to a first node of a regulator. A portion of the line voltage signal can be passed at the first voltage through a capacitive device in the regulator and provided at a second node for return to an electrical circuit containing a load device. The remaining portion of the line voltage signal can be passed to a voltage divider comprising at least a first resistive device and a second resistive device. A signal output at a second voltage and a second current that is suitable for introduction to a high-impedance controller input can be obtained at a third node electrically coupled to a point between the first resistive device and the second resistive device.
Display module and tiled display manufacturing method
A flat panel display device including at least one display module in the form of a matrix of pixels formed by active media enclosed between two sets of conductors, where the display module has a front side by which it is to be exposed to viewers and an opposite back side where an electronic control circuit is located, and includes two sets of electrical conductors extending along two intersecting axes respectively to define a two-dimensional array of junctions forming said pixels, each of the conductors of at least one set of conductors being bent to extend from the front side to the opposite back side of the display module.
LED lighting apparatus and control circuit thereof
Disclosed is a light emitting diode lighting apparatus capable of improving a power factor and temperature characteristics. The light emitting diode lighting apparatus according to a preferred embodiment of the present invention includes a light source having a plurality of light emitting diode channels and performs a current regulating operation to allow a light source to emit light. The light source uses a current path provided by current regulating to emit light.
Light-emitting diode lighting system
The present application discloses a light-emitting diode (LED) lighting system, including: a toroidal transformer comprising a pair of input terminals and a pair of output terminals; and an illuminant comprising an LED circuit; wherein the illuminant is electrically connected to the pair of output terminals of the toroidal transformer. The present application uses a toroidal transformer to simplify a circuit and reduce the number of electronic parts used. On one hand, a service life of a product can be prolonged, and on the other hand, costs can be reduced and a recycling rate is high, which is beneficial to environmental protection.
Driver circuit of light sources and vehicle light provided with said driver circuit of light sources
Driver circuit of light sources, particularly of the LED type, comprising a first and at least a second group of light sources, each connected to a common power supply terminal, a first and at least a second regulation circuit, each suitable for regulating the current absorbed by a respective group of light sources, at least one actuation circuit operatively connected to a respective second regulation circuit, and a serial connection circuit, suitable for connecting in series at least a first and a second group of light sources, when the voltage downstream of the first group of light sources is greater than or equal to the voltage upstream of the second group of light sources.
Driving circuits for light emitting elements
A circuit for driving light emitting elements, such as LEDs, includes a first transistor having a source coupled to ground through a first resistive element, and a second transistor having a gate electrically coupled to a gate of the first transistor, a source electrically coupled to ground, and a drain for electrical connection to a first group of light emitting elements. The circuit also includes circuitry to provide a predetermined voltage at the source of the first transistor, circuitry to compensate for a difference in respective gate-source voltages of the first and second transistors, and circuitry to compensate for a difference in respective drain-source voltages of the first and second transistors. In some implementations, the circuit can achieve relatively low power consumption.
TRIAC low voltage dimming control system
A TRIAC low voltage dimming control system for effectively controlling the dimming of low voltage lighting using a TRIAC dimmer. The TRIAC low voltage dimming control system generally includes a TRIAC analyzer that applies a test voltage to a TRIAC dimmer and measures the amount of time required for the TRIAC dimmer to conduct electricity. Utilizing the measured time for the TRIAC dimmer to conduct electricity, the TRIAC analyzer is able to calculate an approximate state of the TRIAC dimmer and provide a corresponding level of DC electrical power to a DC load.
Apparatus fabrication using localized annealing
A method for fabricating an apparatus using radiation annealing includes forming an annealable layer on a substrate. A radiation absorbing layer is also formed on the substrate, wherein the radiation absorbing layer heats up In response to radiation, and the radiation absorbing layer is formed adjacent to at least a portion of the annealable layer and non-adjacent to a portion of the apparatus. Radiation is directed toward the apparatus to heat up the radiation absorbing layer to anneal the at least a portion of the annealable layer that is adjacent to the radiation absorbing layer without annealing the portion of the apparatus that is non-adjacent to the radiation absorbing layer.
Cold crucible induction melter integrating induction coil and melting furnace
A cold crucible induction melter includes an induction coil and a melting furnace. The induction coil serves as a water cooled segment to directly transmit an induced current to a molten material in the cold crucible induction melter (CCIM), improving energy efficiency. Simultaneously, the structure of the CCIM is simplified and enables a smooth discharge even when the molten material consists of a ceramic or a metal material with a high melting point. The cold crucible induction melter heats and melts waste using an induced current which is generated in a water cooled segment by a high frequency current that is applied to the induction coil. The water cooled segment and the induction coil are disposed in a vertical direction so that the induced current that is generated by the induction coil is directly transmitted to the molten material.
Direct digital frequency generation using time and amplitude
This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency.
Base station apparatus and method of deciding master base station apparatus
Each of the base station apparatuses measures received electric field strength of receivable signals from other base station apparatuses, and superiority in cases of indirectly connecting each of the base station apparatuses to another or other plural base station apparatuses by a route in which one or plural base station apparatuses are interposed and a case of making direct connection between the base station apparatuses are determined based on a measurement result of the received electric field strength and thereby, the base station apparatus used as the highest master is decided.
A bracelet including a plurality of circuits. The plurality of circuits includes a wireless communication circuit configured to communicate with a first device, a near-field communication circuit configured to communicate with a second device via a near-field communication antenna, and a power supply circuit including a battery. The first device is remote from the bracelet. The power supply circuit is configured to supply power to one or more of the plurality of circuits.
Wireless apparatus, base station, and communication controlling method thereof
A wireless apparatus, a base station, and a communication controlling method are provided. A communication controlling system comprises the wireless apparatus and the base station. The wireless apparatus is configured to transmit a connection request to the base station and then enter a connection setup communication procedure. The wireless apparatus enters a temporary waiting status during a waiting duration after transmitting the connection request. The wireless apparatus stays in the connection setup communication procedure in the temporary waiting status. The communication controlling method is able to perform the same operations as those performed by the wireless apparatus and the base station is able to perform the operations corresponding to the wireless apparatus.
Electronic device capable of communicating with another device
An electronic device comprises a first communicating unit wirelessly communicating with the other electronic device and a controller establishing wireless communication with the other electronic device through the first communicating unit by using setting information. The controller permits the other electronic device to remotely control the operation of the electronic device within a first range if the setting information used for establishing the communication is information not-temporarily issued (for example, a permanent SSID, a permanent PW). The controller permits the other electronic device to remotely control the operation of the electronic device within a second range limited as compared to the first range if the setting information used for establishing the communication is information temporarily issued (for example, a temporary SSID, a temporary PW).
Wireless communication device
A wireless communication device may establish a first type of connection by using a first wireless channel and establish a second type of connection by using a second wireless channel. In a specific situation where one connection of the first type of connection with the first device and the second type of connection with the second device is to be established, while the other connection has been established, the wireless communication device may form a multiple connection state where both the first and second types of connections are established in a first case where values of the first and second wireless channels are identical, and form a single connection state where one of the first and second types of connections is established in a second case where the values of the first and second wireless channels are not identical.
Method for transmitting and receiving random access request and transmitting and receiving random access response
A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request transmitted and the sequence number information included in the received random access response.
HARQ Timing scheme for single-carrier uplink control information with inter-site carrier aggregation
There is a pattern for downlink almost blank sub frames ABSFs for a first network node (e.g., macro eNB) operating in a first component carrier (e.g., PCell). For a user equipment UE operating with the first network node on the first component carrier and also with a second network node on the second component carrier, then either or both of the following are imposed. The UE is scheduled on the first component carrier such that no uplink control information UCI from the UE is scheduled for any uplink subframe in the first component carrier which maps from any of the ABSFs; and the UE is scheduled on the second component carrier such that UCI from the UE is scheduled only for an uplink subframe in the second component carrier which maps from any of the ABSFs. By example, the UCI includes either/or ACKs and NACKs corresponding to data sent downlink to the UE.
Method and apparatus for transmitting and receiving scheduling assignments in a communication system
A method and apparatus for receiving a Scheduling Assignment (SA) by a User Equipment (UE) in a communication system in which a base station transmits the SA being a first type or a second type, the SA including a set of Information Elements (IEs), and a first IE. The method includes receiving the SA; identifying that each bit included in the set of IEs of the SA and at least one bit included in the first IE of the SA are set with a predetermined value; and performing an action corresponding to the SA of the second type, if each bit included in the set of IEs of the SA and the at least one bit included in the first IE of the SA are set with the predetermined value.
Providing service based on quality of service resources in a long term evolution communications system
In an embodiment, an apparatus (e.g., a client device or a server) sends, to a Long Term Evolution (LTE) network component, a request to setup a Quality of Service (QoS) bearer with a threshold level of QoS to support the communication session for the client device. The apparatus permits the client device to proceed with the attempt to setup the communication session irrespective of whether the LTE network component grants the threshold level of QoS for the QoS bearer. In another embodiment, the LTE network component rejects an initial QoS request from the apparatus due to QoS unavailability, and then receives another QoS request within a threshold period of time. Based on the two (or more) QoS requests being received within the threshold period of time, the LTE network component allocates an available level of QoS to the client device that is less than the requested level of QoS.
Computation of channel state feedback in systems using common reference signal interference cancelation
When enabled with common reference signal interference cancellation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.
Wireless media sharing from multiple sources to a single sink
In one example, a method includes, during operation of a wireless media share session between a primary source device and a sink device, transferring, from the primary source device to a secondary source device using a wireless link, transmission rights to the media share session with the sink device.
Method and apparatus for information transmission in wireless communication system
According to one embodiment, a method for transmitting, by a user equipment (UE), information in a wireless communication system includes: determining a first information sequence based on a first cyclically shifted base sequence and a first orthogonal sequence by using a first physical uplink control channel (PUCCH) resource for a first antenna, wherein the first PUCCH resource is obtained based on a channel control element (CCE) index related to a physical downlink control channel (PDCCH) and a parameter configured by a higher layer; determining a second information sequence based on a second cyclically shifted base sequence and a second orthogonal sequence by using a second PUCCH resource for a second antenna, wherein the second PUCCH resource is obtained by adding an offset to the first PUCCH resource; transmitting the first information sequence via the first antenna; and transmitting the second information sequence via the second antenna.
Method and apparatus of activating/deactivating secondary carriers in mobile communication system using carrier aggregation
A method for activating/deactivating secondary carriers of a User Equipment (UE) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation Control Element (CE) in a first sub-frame from a Base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation CE indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame.
Method and device for transmitting random access and other uplink channels of other cell in mobile communication system carrier aggregation
The present invention relates to a transmission of a random access in a specific cell from a plurality of serving cells in a mobile communication system using a carrier aggregation technology, and a method for efficiently transmitting uplink channels other than the random access in another cell. In particular, the method for a terminal to transmit an uplink channel to a base station comprises the steps of: confirming whether an uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe transmitting a Random Access Preamble for the first carrier; if included, confirming whether the sum of the electric power required for the transmission of the random access preamble and the electric power required for the transmission of the uplink channel exceeds the maximum transmission electric power of the terminal; and, if exceeding, transmitting the random access preamble preferentially before the uplink channel. In addition, the terminal for transmitting an uplink channel to a base station comprises: a transmitter/receiver for transmitting/receiving a signal to/from the base station; and a control unit for confirming whether the uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe for transmitting a random access preamble for the first carrier, and if included, confirming whether the sum of the electric power required for transmitting the Random Access Preamble and the electric power required for transmitting the uplink channel exceeds the maximum transmission electric power of the terminal, and if exceeding, controlling the transmission so that the random access preamble is preferentially transmitted before the uplink channel.
Method and device for transmitting control information in a wireless communication system
The present invention relates to a wireless communication system. More specifically, a method for transmitting control information including ACK/NACK and a scheduling request (SR) from a terminal in a wireless communication system comprises the steps of: receiving a plurality of physical downlink shared channels (PDSCHs); and transmitting a plurality of ACK/NACK and SR corresponding to the plurality of PDSCHs by using physical uplink control channel (PUCCH) format 3, wherein the plurality of ACK/NACK are divided into first and second segments, and the SR is added to at least one of the first and second segments and is then joint coded with the plurality of ACK/NACKs of the segment to which the SR is added.
Dynamic subframe setting method for wireless communication system, and device for same
The present application discloses a method for a terminal to transmit/receive signals to/from a base station in a wireless communication system. Specifically, the method comprises a first step in which an uplink signal is transmitted from a first subframe and a downlink signal is received from a second subframe, and a second step in which a downlink signal is received from the first subframe and the second subframe if the first subframe has changed so as to be used for the reception of a downlink signal; and the method is characterized in that in the first step a protection space is located between the first subframe and the second subframe, in the second step the protection space is located at the front end of the first subframe, and the first subframe and the second subframes are consecutive.
Communications systems, communications device, infrastructure equipment and method
A communications system, including a mobile radio network including local base stations to communicate data to and from mobile communications devices via a wireless access interface. The mobile radio network is adapted to include a message processor and a message store, the message store arranged to store an indication of each of one or more message exchanges in a set of predetermined message exchanges between the base stations and one or more of the communications devices, each message exchange including a predetermined set of predetermined messages and requiring predetermined up-link and/or down-link communications resource for communicating the message exchange on the up-link and/or down-link, between a base station and the communications device.
Method for reporting channel state information in a wireless communication system, and apparatus therefor
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for reporting channel state information, wherein the method comprises the following steps: receiving configuration information for periodically reporting channel state information; and periodically reporting the channel state information for a each of a plurality of periods based on the configuration information, wherein the channel state information is repeated so as to have a predetermined pattern based on periods, of which a second period is longer than a first period. The second period has a first value in a single transmission point operation mode. The second period has a sum of the first value and a second value which is proportional to the number of coordinated transmission points involved in a coordinated multi-point transmission operation in a coordinated multi-point transmission operation mode.
Method and apparatus for bearer processing
A bearer processing method is disclosed. The method includes these steps: a system border node receives a Packet Data Protocol (PDP) Context Request initiated by a universal mobile telecommunication system (UMTS); the system border node adjusts a Request Bearer Resource Allocation message of a system architecture evolution (SAE) system or the PDP Context Request of the UMTS according to the received PDP Context Request to map the Bearer Resource Allocation procedure of the SAE system and the Bearer Resource Allocation procedure of the UMTS. The present invention can map the Bearer Resource Allocation procedure of the SAE system and the Bearer Resource Allocation procedure of the UMTS.
Controlling communication mode changes in a communication system
In response to receiving an indication at a primary device of initiation of a communication mode change, the primary device transmits a first command. Each of one or more secondary devices that are in a responsive state when the first command is transmitted responds to the first command with a response message and remains in a responsive state until a second command is received from the primary device. Each secondary device that is not in a responsive state when the first command is transmitted changes to a responsive state after a predetermined amount of time in a non-responsive state and remains in a responsive state for at least a minimum time duration. The primary device collects response messages received from secondary devices, and in response to the number of response messages received being equal to an indicated number, transmits the second command.
Methods and apparatuses for reduction of interference during positioning measurements
The exemplary embodiments of the present invention relate to methods and apparatuses enabling reduction of interference in a wireless system in order to assist a user equipment in performing positioning measurements. According to exemplary embodiments of the present invention, a radio network node is configured to: receive a measurement report from the UE comprising signal quality measurements related to interfering cells; to select a set of most interfering cells and to determine a level of reduction of transmission activity to be executed at specific time for a determined duration.
Downlink signaling counter management for multiple subscriber identity devices
A downlink signaling counter management method for a communication device is adapted to be simultaneously associated with at least two subscriber identities and to simultaneously provide radio receiving capabilities to less than all of the subscriber identities. For each decoding of a paging block for a subscriber identity, it is determined whether the paging block decoding was correct and whether a previous paging block decoding condition is fulfilled. The downlink signaling counter is updated with different values depending on this determination results, and on whether the paging block decoding was based on a maximum number of paging bursts.
Terminal device for transmitting a power headroom report in a multi-carrier communication system, and method for same
A method and device for transmitting a power headroom report (PHR) by a user equipment (UE) in a communication system supporting a plurality of carriers. The method includes transmitting, to an eNode B (eNB), a power headroom report (PHR) related to the plurality of carriers configured for the UE. The power headroom report (PHR) comprises a first type power headroom (PH) and a second type power headroom (PH). While the first type power headroom (PH) is calculated for a power headroom report (PHR) related to a primary carrier and a non-primary carrier, the second type power headroom (PH) is calculated for a power headroom report (PHR) related to only the primary carrier. The second type power headroom (PH) is calculated for case of simultaneous transmission of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).
Method for controlling signal transmission power and device for same
A method for transmitting signals using a plurality of component carriers in a wireless communication system. The method according to one embodiment includes controlling transmission powers for one or more channels per each component carrier; and checking whether a total transmission power of a plurality of channels for simultaneous transmission over the plurality of component carriers exceeds a total maximum transmission power configured for a communication apparatus or not, the plurality of channels including a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH); and if the total transmission power of the plurality of channels over the plurality of component carriers exceeds the total maximum transmission power, adjusting a transmission power of the PUSCH in such a way that the total transmission power of the plurality of channels over the plurality of component carriers does not exceed the total maximum transmission power transmission power.
Power scan optimization
Embodiments of the present invention include devices, systems and methods for optimized camping on a cell. One method can include beginning a power scan of a range of radio-frequency channel numbers as part of an acquisition. Power can be measured for a first set of radio-frequency channel numbers at a time using adjacent channel interference detection. An average power can be computed for each radio-frequency channel number once the range has been scanned a predetermined number of times. Other aspects, embodiments and features are also claimed and described.
Portable terminal and method for scanning access points
A portable terminal and a method for scanning Access Points (APs) to perform the AP scan with low power consumption in a sleep mode are provided. The method includes checking whether a sleep mode entry request is detected in a state that a short range radio communication function is activated, transmitting, when the sleep mode entry request is detected, an access point list and a setup command for handing over an access point scan control from a control unit to a short range radio communication module, adjusting a scan period according to a motion of the portable terminal based on the access point list and the setup command, and scanning, at the short range radio communication module, access points at the adjusted scan period.
Techniques for conserving power for communication between wireless devices
Embodiments herein relate to various techniques for conserving power for communication between wireless devices. Example techniques described herein may achieve power conservation by synchronizing when devices in communication with one another may enter power save or sleep mode and subsequently when the devices may wake up from power save mode to resume communication. According to one technique, a sending device may establish a rendezvous time in a duration field of a control frame (e.g., an RTS frame), which may indicate a time at which the devices may awake from power save mode. According to another technique, a duration may be indicated in a duration field of one or more data frames, and a rendezvous offset may be indicated in a Quality of Service (QoS) control field of the one or more data frames. Such a duration and rendezvous offset may be used to establish a rendezvous time in this technique.
Systems and methods for device-to-device communication in the absence of network coverage
A method and system for establishing a secure device-to-device connection between two mobile devices involves the use of a WiFi Direct (LTE Direct or other similar protocols) link paired with an IP Multimedia Subsystems (IMS) link. A device detects the presence of another device that it wishes to connect to. The devices negotiate a group owner, then authenticate each other using a variety of techniques, such as a centrally issued certificate. Thereafter, the devices derive keys to be used for communication, both over the WiFi Direct link and via the IMS link. A WiFi Direct Link may be paired with a Push to Talk over Cellular (PoC) link in order to couple together more than two devices. In such a connection, devices transmit to a group owner, which then sends multicast versions to the rest of the group devices.
Method and apparatus for reducing energy consumption of radio communications in a wireless sensor network
A method, a non-transitory computer-readable medium and an apparatus for receiving a data packet that is transmitted from a first sensor node are disclosed. For example, the method performs a channel scan of a particular burst of channel scans. When the preamble packet is detected, the method determines whether the preamble packet is addressed to the second sensor node. When the preamble packet is addressed to the second sensor node, the method sends an acknowledgement packet to the first sensor node. The method then receives the data packet that is transmitted from the first sensor node. The method then sleeps for a duration of time, when there is no packet transmission that is ongoing that is destined to the second sensor node.
Method and apparatus for determining data transreceiving path in radio access system supporting multi-rat
A method for transreceiving data disclosed in the present invention is a method for a terminal transreceiving between a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting Multi-RAT, and comprises the following steps: receiving access information for the second base station from the first base station; accessing the second base station based on access information of the second base station; transmitting to the first base station command information including an address on the second RAT, which is used for accessing the second base station; and transreceiving data having a first flow ID from the first base station through the first RAT, and transreceiving data having a second flow ID from the second base station through the second RAT.
Measurement in simultaneous TDD-LTE and TD-SCDMA/GSM systems
In a mobile device for wireless communication capable of communicating on multiple radio access technologies (RATs), cell selection may be improved by reusing cell measurements for inter-RAT cell selection. This will reduce the number of cell measurements taken and improve mobile device performance. A time threshold may be used to instigate new cell measurement to prevent cell measurement data from being outdated.
Communication control method, user terminal, base station, and home base station
A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell, and a mobility management device that performs verification of a user terminal for access permission to the specific cell in a handover procedure of the user terminal to the specific cell, comprises a step A of updating, by the user terminal, a list of a specific cell accessible by the user terminal; and a step B of omitting the verification of the user terminal by the mobility management device in the handover procedure when an elapsed time period after the update of the list is within a predetermined time period.
Efficient network hand-off utilizing stored beam-forming information
A system and method for performing efficient network hand-off (e.g., of a mobile communication device) utilizing stored beam-forming information. For example and without limitation, before determining to perform a particular hand-off, various aspects may comprise storing beam-forming information associated with the particular hand-off. Various aspects may also, for example, comprise determining to perform the particular hand-off. Various aspects may additionally, for example, comprise (e.g., after determining to perform the particular hand-off) accessing the stored beam-forming information associated with the particular hand-off to be performed. Various aspects may further, for example, comprise utilizing the accessed beam-forming information to form a communication beam to utilize for performing the particular hand-off.
Apparatus and method for switching radio access technology in wireless communication system
An apparatus and a method for switching a Radio Access Technology (RAT) by a User Equipment (UE) in a wireless communication system are provided. The method includes detecting an event indicating that the UE should perform a switching operation from a first RAT to a second RAT different from the first RAT occurs while the UE uses the first RAT determining whether a RAT switching operation criterion is satisfied after detecting that the event occurs and if the RAT switching operation criterion is satisfied, performing the switching operation.
Traffic splitting based on latency between cells
Systems and techniques for traffic splitting based on latency between cells are herein described. At an eNodeB, a transmission path latency for a portion of a transmission path between the eNodeB and a user equipment (UE) may be measured via a secondary eNodeB when the UE is dually connected to both the eNodeB and the secondary eNodeB. The transmission path latency may be compared to a threshold. A layer in a transmission stack to split traffic to the UE may be determined based on the comparison of the transmission path latency to the threshold, the traffic being split between the eNodeB and the secondary eNodeB.
Systems and methods for controlling cell selection in a heterogeneous cellular network based on primary direction of traffic flow
Systems and methods are disclosed for controlling cell selection between a high power base station and a neighboring low power base station in a cellular network. In one embodiment, a primary direction of traffic flow for a user equipment located within a transition zone between a high power base station cell of the high power base station and a low power base station cell of the low power base station is determined to be either an uplink direction or a downlink direction. Cell selection for the user equipment is then controlled based on the primary direction of traffic flow for the user equipment such that selection of the high power base station cell is favored if the primary direction of traffic flow is the downlink direction and selection of the low power base station cell is favored if the primary direction of traffic flow is the uplink direction.
Multi-homed mobile relay
A mobile relay node having communication sessions with a plurality of wireless mobile device (UEs) and a communication link to a source base station via a first communication link is located within a moving vehicle. As the vehicle moves from the coverage area of the source base station to the coverage area of a target base station, the relay node performs a hand off process that initiates a second communication link with the target while maintaining and continuing to relay communications between the UEs and the source. Once the second communication link is active, the relay node switches UE traffic from the source base station to the target base station over the second communication link, and then releases the first communication link.
Method for performing a change of mode in devices directly communicating with each other in a wireless connection system, and apparatus for same
The present invention relates to a method for determining whether a mode change condition for performing a hand-over to a cellular network through which devices communicate with each other is satisfied, transmitting a mode change instruction message to a base station when the mode change condition is satisfied, receiving a mode change command message for starting a mode change from the base station, transmitting a first data packet index with respect to a data packet transmitted to a second device at a final stage through the communication between the devices to the base station, ending the communication with the second device when the inter-device communication end request message is received from the base station, and transmitting data to the second device through the cellular network.
Systems and methods for obtaining subscriber access information by a core network in a handover process
The present invention discloses a method for a core network to obtain user access information during a handover procedure, which includes: when the user handovers between HNBs or HeNBs and the core network does not carry out access control of the user, if the destination HeNB is connected to the core network directly or the user which does not support a closed subscriber group handovers to a hybrid destination HNB, the network element which controls the access of the user transmitting membership information of the user to the core network. The invention also discloses a corresponding system. The invention realizes that under the condition that the RAN side controlling the access of the UE during the handover process and the CN cannot know the membership of the UE, the RAN side notifying the core network of the membership information of the UE and the information of the H(e)NB.
Method for determining handover criterion in a cellular wireless communication system
The present invention relates to a method for determining handover criterion in a cellular wireless communication system, said cellular wireless communication system employing handover procedures according to which mobile stations may be handed over from a cell to another cell; said method comprising the steps of: receiving at least one handover control criterion parameter, and determining at least one handover criterion based on said at least one handover control criterion parameter. Furthermore, the invention also relates to a method in a network control entity, a method in a network entity, a computer program, a computer program product, a network control entity device, a network entity device and a cellular communication system comprising such devices.
Sending an identifier of a wireless local area network to enable handoff of a mobile station to the wireless local area network
In a wireless communications network, the presence of a wireless local area network in a cell segment is determined. An identifier of the wireless local area network in the cell segment is sent to at least one mobile station in the cell segment to enable the at least one mobile station to hand off to the wireless local area network. Optionally, information identifying geographic boundaries of cell segments and the wireless local area network can be sent to the at least one mobile station.
Using a frequency error estimate of a first radio access technology (RAT) for a second RAT
Using a frequency error estimate (FEE) of a first RAT for a second RAT. The UE may include a first radio which supports, e.g., simultaneously, a first radio access technology (RAT) and a second RAT. The first radio may use a lesser frequency of sleep and wake-up cycles when operating according to the first RAT than when operating according to the second RAT. The UE may perform a FEE associated with the first RAT. Accordingly, the UE may skip an FEE associated with the second RAT based on performing the FEE associated with the first RAT.
Dynamic network cell reselection after a failed handover
Apparatus and methods of performing a network cell reselection for a mobile device after a handover attempt fails. Initially, a handover is attempted for the mobile device in a radio resource control (RRC) connected mode from a serving network base station to a target network base station. Next a failure condition associated with the handover attempt is identified by the mobile device. In one scenario, the failure condition is identified in response to the mobile device receiving an RRC connection release message from its serving network base station. In another scenario, the failure condition is identified when the mobile device detects a radio link failure event. Thereafter, the mobile device performs a network scan to identify any available network base stations for the network cell reselection. Subsequently, the mobile device attaches to a preferred network base station of the identified available network base stations to complete the network cell reselection.
Byte caching in wireless communication networks
Various embodiments provide byte caching in wireless communication networks. In one embodiment, a plurality of data packets are received through an internet protocol (IP) data flow established between a wireless communication device and at least one server. Each of the plurality of data packets are combined into a packet bundle. A determination is made as to whether a second byte caching system is available. The packet bundle is transformed using one or more byte caching operations based on a second byte caching system being available. The transformed packet bundle is sent to the second byte caching system using an IP communication mechanism.
System and method for data size adaptation in a UE
A method is described for adapting the size of data for a future Transmission Time Interval (TTI) by a User Equipment (UE), wherein all the Media Access Control (MAC)-d flows are grouped and stored in different lists based on a type of grants associated with the MAC-d flows, ability of a MAC-d flow to be multiplexed with another MAC-d flow from a list, and data availability in a logical channel mapped onto a MAC-d flow in the current TTI. The E-TFC is then selected by the UE for the future TTI using the MAC-d flow having the highest power offset in a consolidated list including the grouped MAC-d flows. The size of the data is thereby adapted using the selected E-TFC. Further disclosed is a method for generating RLC PDUs by the UE for the future TTI using the variation in the scheduled grant for the UE and the size of the data adapted for the future TTI.
Method and apparatus for dynamically changing modes of a reliable transport protocol
A communication device minimizes an opportunity for a queue stall during a communication session employing a reliable transport protocol by setting a current mode of operation for a Radio Link Protocol (RLP) and, based on a quality of an air interface, switching to an RLP mode of operation different from the current mode during the communication session.
Method of anonymously reporting minimization of drive test measurements
The present invention provides a method of anonymously reporting minimization of drive test (MDT) measurements. According to the method, a mobility management entity (MME) obtains MDT data anonymity configuration which indicates whether MDT measurements are to be reported anonymously at a type allocation code (TAC) level; sends a TAC of a UE to a trace collection entity (TCE) if the MDT data anonymity configuration indicates MDT measurements are to be reported anonymously at the TAC level; sends an international mobile subscriber identification (IMSI) or an international mobile equipment identity and software version (IMEISV) of the UE to the TCE if the MDT data anonymity configuration indicates other information, e.g. Trace, is adopted for anonymously reporting MDT measurements. The present invention enables an MME to send different identities of a UE to the TCE according to different requirements for anonymity to implement anonymous reporting of MDT measurements.
User equipment reporting of connection loss
Provided are methods for handling reports on lost connections in a terminal device which is capable of being in communication connection with a plurality of network access nodes, wherein the terminal device generates, after having lost connection to a (first) network access node, a report on the loss of connection and, upon or after reconnecting of the terminal device with the same or a different network access node, sends the report on the loss of connection to the network access node. The network access node receiving a report on loss of connection from a terminal device, forwards said report to a central server and/or to a network access node to which the terminal device was connected before. Further provided are a terminal device comprising a receiver and a transmitter and being adapted to connect to an access node of a network, particularly of a wireless, e.g. a cellular radio network, said terminal device further comprising a report generator for generating a report on a loss of connection, wherein said transmitter is adapted to send said report to an access node upon or after reconnecting, and a network access node, particularly a network access node of a wireless, e.g. a cellular radio network, comprising a receiver and a transmitter and being adapted to be connected by a terminal device, wherein the receiver is adapted to receive reports on a loss of connection from a terminal device, and wherein the transmitter is adapted to forward or send a received report to a central server or to a different access node, particularly to an access node to which the terminal was connected before a loss of connection.
Mobile radio apparatus and mobile communication system
A mobile radio apparatus receives a broadcast signal transmitted from at least one base-transceiver station corresponding to a cell around a position of the mobile radio apparatus, obtains from the received broadcast signal a cell identifier for the cell and a cell flag for identifying whether or not the cell is a small cell or a macro cell, stores the obtained cell identifier and cell flag in a cell list, confirms a service quality class for a service of call connection target communication, determines whether or not the service desires a high throughput by using the confirmed service quality class when the cell list includes a cell flag representing a small cell, selects a macro cell from the cell list when it is determined that the service does not desire a high throughput, and transmits a call connection request signal to a base-transceiver station corresponding to the selected macro cell.
Femtocell use for radio frequency network sweeps
Systems and methods that utilize femtocell access points (FAP) to perform radio frequency (RF) network sweeps are provided. In one embodiment, a method includes: predicting an availability of an access point (AP) to perform an RF network sweep; and determining that the access point is available to perform the RF network sweep based, at least, on a prediction that a mobile device on a white list for the access point is not likely to access the access point during a time interval associated with performing the RF network sweep. In another embodiment, a method includes: comparing a network quality characteristic for a wireless channel associated with a FAP with a network quality characteristic for a wired network communicatively coupled to the FAP. The network quality characteristics can be the same. The method can then include employing the comparison to determine to which network an impairment is attributable.
Method and apparatus for wireless device performance testing
A method and apparatus for obtaining a set of optimized angles of arrival for a corresponding set of radio links. The set of radio links model a radio environment of a wireless unit operating at a particular location within in a radio system. Each radio link represents a different propagation path between the wireless unit and transmitting antenna operating within the radio system. Each optimized angle of arrival represents an angle of arrival of one radio link with reference to the wireless unit. Each probe antenna of a set of probe antennas is positioned at a corresponding angle of the set of optimized angles of arrival. A corresponding set of probe radio signals is transmitted from the set of probe antennas.
System, method and device for testing mobile telephone call performance
A system and method of testing call performance of a plurality of mobile telephones is provided. In one embodiment the method comprises storing in a memory of a test device, data for one or more test scenarios that each comprises associated test parameters for attempting a plurality of telephone calls, causing the mobile telephone to attempt to establish a plurality of telephone calls of the test scenarios, and monitoring the plurality of telephone calls of the mobile telephone to determine test results data. The method further includes attempting and monitoring a plurality of telephone calls of the mobile telephone to determine test results data with one or more remote call servers and outputting the test results data to a remote computer system for processing to determine the number of dropped calls, call set up times, number of calls successfully initiated, number of calls having two way speech, and other data.
Partial failure handling of bearer mapping in dual connectivity
Systems, methods, apparatuses, and computer program products for partial failure handling of bearer mapping in dual connectivity are provided. One method includes, during a secondary evolved node B (SeNB) addition procedure, providing a target SeNB with an indication of SeNB change together with information on bearers that were served by a source SeNB. The method may further include receiving, by a master evolved node B (MeNB), bearer mapping for failed bearers from the target SeNB, and providing the source SeNB with the bearer mapping for the failed bearers.
Method for reporting channel state information in wireless communication system and apparatus therefor
The present invention relates to a method for enabling a terminal to report channel state information in a wireless communication system for supporting coordinated multi point (CoMP) transmission. Specifically, the method for enabling the terminal to report the channel state information in the wireless communication system for supporting CoMP transmission includes the steps of: receiving a reference signal from a serving cell and one or more cooperated cells; forming the channel state information for the CoMP transmission on the basis of the reference signal; and reporting the channel state information through a physical uplink shared channel to the serving cell, wherein the channel state information includes channel quality indicator (CQI) information and precoding matrix index (PMI) information, and the CQI information includes a wideband CQI and a CQI for each selected sub-band of the CoMP transmission.
Communication system for determining data transmitting scheme according to channel state
Disclosed is a data transmission method that may enhance a channel capacity in a wireless channel environment of a frequency band having a high directivity in which a transmission apparatus may form a transmission beam and transmit a training signal while sequentially changing a direction of the formed transmission beam, a reception apparatus may form a reception beam and receive the training signal while sequentially changing a direction of the formed reception beam, and the transmission apparatus may receive a response signal from the reception apparatus with respect to the training signal and determine a data transmission scheme based on the received response signal.
Automatic determination of component types and locations for wireless network design
A computer implemented method and system for determining component types and locations in a network design. The method includes automatically determining component types and locations according to a riser location as an entry point and antenna locations as a plurality of end points. The automatically determining component types and locations includes determining, by a processor of the computer, a first set of component types and locations according to a tree topology, according to the entry point and the plurality of end points, determining, by the processor, a second set of component types and locations according to a hybrid topology, according to the entry point and the plurality of end points, and determining, by the processor, one of the first set of component types and locations and the second set of component types and locations.
Topology discovery based on SCTP/X2 snooping
In one embodiment, a method for automatically creating a network route using a discovered IP address includes a first network device receiving a plurality of packets over an X2-C. The method further includes determining a packet type of one or more packets of the received plurality of packets. The method further includes discovering one or more IP addresses of a second RBS using information of the one or more packets, wherein the information used for discovering the one or more IP addresses is determined based on the determined packet type of the one or more packet). The method further includes creating a network route between a first RBS and the second RBS for each of the one or more discovered IP addresses.
Method and system for providing a distributed wireless network service
A distributed wireless network system includes a mobile unit capable of communicating over a Wi-Fi connection, a server that is coupled to and accessible over a global communication network, a first and a second Wi-Fi access point. The mobile unit and the first Wi-Fi access point are operated by a first user and the second Wi-Fi access point is operated by a second user. The server is configured to store user data of at least the first and the second user. The user data includes at least personal authenticity data of the user being allocated to a user login and a database of shared Wi-Fi access points. Upon transmission of identification data, the user login of the first user is transmitted to the server. It is then checked whether for this user login corresponding user data is stored at the server and whether the second Wi-Fi access point is in the list of shared Wi-Fi access points. If the checks are successful, access data from the server is transmitted to the mobile unit.
Device authentication method and devices
In a method for authenticating a device on a wireless local area network (WLAN) there is a once-off registration phase in which the device sends registration data in a MO SMS via the mobile network to the authentication system, and the authentication system performs a query to this mobile network to validate the subscriber and resolve the subscriber and device identifiers. The device receives network access information from the authentication system, allowing it to generate network access credentials on an on-going basis. This is permanent unless the registration is revoked due, for example, to the device being stolen. The network access information may be provided by the authentication system generating and signing a unique subscriber certificate during registration, and the device downloading it. The device uses the signed certificate to generate and encrypt the network access credentials for the network access.
Dynamic distribution of authentication sessions
This disclosure relates to authenticating and providing transport security over unsecured IP networks to network subscribers. The system includes an authentication service that authenticates network subscribers. The authentication service can dynamically define expiry times for network authentication.
Allocating network identifiers to access terminals
The disclosed subject provides embodiments of a method of allocating network identifiers to access terminals. One embodiment of the method includes allocating a fixed length identifier to an access terminal on initial entry of the access terminal to a network. The access terminal is identified by one of a plurality of mode-dependent identifiers in communication over an air interface between the access terminal and the network. The mode-dependent identifier is selected based on an operational mode of the access terminal. The method also includes providing the fixed length identifier to one or more entities in the network.
Message control system
Embodiments are presented for controlling usage of a communications device, whereby for a given number of messages generated from the device the operator (e.g., a child, person, etc.) has to successfully answer a question before a further batch of messages can be sent. The number of messages that can be sent before a question is to be answered can be configured by a parent. Further, a modifiable data store can be utilized to store questions, from which questions for presentation on the communication device can be sourced. The questions can relate to subject matter the child is studying at school, a standardized test, trivia, provided by a third party.
System and method for dynamically coupling a special number call with a function-focused answering unit
A system for dynamically coupling a special number call from a calling unit with at least one function-focused answerer includes: (a) at least one of an unlicensed mobile access network, a radio access network, and a public switched telephone network configured and situated for communicative coupling with the calling unit; (b) at least one network switch coupled with at least one of the networks; and (c) a special number call receiver coupled with the network switch. At least one of the special number call receiver and the network switch is configured for communicative coupling of the special number call with the at least one function-focused answerer unit. After receiving the special number call, the special number call receiver dynamically couples the special number call to an included function-focused answerer. Determining which function-focused answerer is an included function-focused answerer is made at the special number call receiver.
Transport stream packet generation device and method of generating transport stream packet thereof
A method of generating a transport stream (TS) packet in a data transmitting device includes receiving a packetized elementary stream (PES) packet and generating at least two TS packets among a plurality of TS packets corresponding to the PES packet at a time on a basis of an analysis result of the PES packet.
Multiple SIM multiple network diversity for enhancing call connectivity
Methods and devices are disclosed for establishing a second call during a first call on a multi-SIM communication device. A quality of the first call between a calling party and a called party using a first subscription for a first network may be determined to be degrading. Network alternatives may be provided for establishing the second call in response to determining that the quality of the first call is degrading. One of the network alternatives may be selected based on an order of suitability for originating the second call. A notification to the called party using information associated with calling party and the second call may be provided before the second call is originated. The information associated with the second call may identify the calling party to the called party before the second call is originated.
System and method for communicating using two-way SMS
The present invention is directed to a system and method for communicating using SMS messages between devices in different home networks, and, in one embodiment, to a method and system for assigning a local SMS number to a recipient device in a different home network such that a user is charged reduced communications costs.
Short message service (SMS) data transfer
Exemplary methods and systems for facilitating SMS data transfer services in mobile devices are described. An exemplary method includes sending a first SMS message to a device with a payload of the first SMS message including machine-readable information. Next, a second SMS message may be received from the device with a payload of the second SMS message including machine-readable information. The first or second SMS message payloads may include, for example, a synchronization message, a call message, call data, or a scheduling message.
User experience enhancements for controlling a group communication
User experience enhancements for conducting group communication sessions may include displaying visual feedback on a display to indicate a state of a group communication session. Embodiments may include displaying a quick contact group communication shortcut icon on a home screen of a wireless communication device display, displaying a group communication button in association with the quick contact group communication shortcut icon on the home screen of the display, detecting a selection of the group communication button by a user on a user interface, and initiating a group communication session with a device of a contact associated with the quick contact group communication shortcut icon.
Social networking of mobile devices
A method for social networking of mobile devices based upon telephone numbers of the mobile devices includes receiving user profile information and telephone numbers of contacts from a plurality of users' mobile devices; at least one of creating and updating respective user profiles based upon the telephone numbers of the users' mobile devices and the received profile information; identifying relationships among the users based at least upon the contacts contained in the contacts information; and establishing a social network group including at least two of the users based upon the identified relationships among the users.
Mobile device positioning system
Techniques for predicting a future location of a mobile device are included herein in which a previous location of the mobile device can be detected. Additionally, a current location of the mobile device can be detected. Furthermore, the future location of the mobile device can be predicted based at least in part on the previous location of the mobile device, the current location of the mobile device, and a location history.
Accelerated location information acquiring system and method
The present invention relates to a location information acquiring system developed to be used in professional trunked radio devices, comprising a global location data organization unit (4) wherein the locations of the subscribers can be acquired one after another sending location queries to a plurality of radios at the same time, which makes channel use more efficient, which can perform global location data transmission swiftly, which is in communication with the wireless communication unit (5), and which is adapted such that it will perform location queries to a plurality of subscriber radios (2) at the same time and acquiring the location information of the said radios (2), a global location data transmission unit (8) which is adapted such that it will perform the transmission of location information when it is radio's (2) turn, and a timer (14); and a method comprising the steps of sending, receiving query, and sending location information with timing.
Reducing overlapping geofences
The various embodiments provide systems and methods for combining overlapping/geographically close geofences associated with a plurality of geofence-enabled applications operating on the same computing device into a single, blended geofence. Each geofence-enabled application may monitor the blended geofence so the plurality of geofence-enabled applications may simultaneously or near-simultaneously detect that the blended geofence has been satisfied when the computing device satisfies the blended geofence. Thus, each of the plurality of geofence-enabled application may consume the output of location-sensing radios and/or communicate with the geofence server at the same time because each of the plurality of geofence-enabled applications detects when the blended geofence is crossed at the same or nearly the same time. Thus, by blending the plurality of geofence-enabled application's geofence areas, the various embodiments may improve battery life and/or conserve resources for a small decrease in accuracy such that the overall user experience on the computing device is improved.
Mobile media communications system
A computer implemented method and system that enables mobile and desktop devices to automatically communicate with websites of brick and mortar businesses, which are relevant to a category of interest and proximate to their current or a prospective geographic location. The system and method further enables generation of well-formed websites, media, and multimedia, and to concurrently and automatically demographically and geographically distribute and push the websites and media to nearby and prospectively interested mobile and desktop devices with relevancy-amplified, geotargeted media and multimedia communications, which media are selected by real-time machine-learned, high-probability consumer interest weighting and relevancy functions that are continuously updated in response to monitored consumer actions. The system further enables geographically regional and inter-regional systems management of these geotargeting capabilities to enable automated, local to worldwide replication and prospective advance market regional and demographic testing of the geotargeted and relevant distributively pushed media communications.
Location service requests throttling
A technique to allow a server such as a location server to throttle concurrent or closely timed location requests for the position of a given wireless device such that within a certain time period preferably only one location request will be initiated to the positioning engine and the remaining closely-timed location requests will be buffered or cached. When a position for the given wireless device is returned per the outstanding location request, then the retrieved position will be used to respond to each of the buffered location requests. Thus, a plurality of location requests are satisfied with a single request to the positioning engine. By optimizing the use of cached position requests, throttling of location requests per the invention reduces network traffic significantly, increases the efficiency of a positioning server (therefore reducing business cost), and provides for an improved grade or quality of location based services in general.
Inviting devices to join a mesh network
An apparatus, method, and program product are disclosed for inviting devices to join a mesh network. A network interface is accessible by a processor and a memory stores machine readable code executable by the processor. The machine readable code includes a network module configured to establish a mesh network via the network interface. The mesh network includes one or more electronic devices. The machine readable code includes a proximity module configured to detect a first electronic device within close proximity to a second electronic device. The first electronic device is not connected to the mesh network and the second electronic device is connected to the mesh network. The machine readable code includes an invitation module configured to send mesh network connection information to the first electronic device from the second electronic device in response to determining the first electronic device is within close proximity to the second electronic device.
Method for changing user-originating information through interaction with other user
A method for automatically changing information originating from at least either of a first user and a second user by using a mobile device includes steps of: (a) a first device searching second devices as a target to perform interaction and then selecting a specific second device among the searched second device to change the user-originating information; (b) the first device transmitting to, or receiving from, the specific second device data related to the interaction, if a touch gesture is detected in the first device; and (c) at least either of the first and the second devices allowing a server to update the information originating from at least either of the first user and the second user by referring to the transmitted data related to the specific interaction.
Mobile router network
A network is provided comprising a network management system, and a plurality of mobile routers. The network management system comprises at least one server and a link to a wide area network. Each mobile router is disposed in a corresponding one vehicle of a plurality of vehicles and is operable to selectively communicate with the network management system. The network management system selectively communicates with each mobile router. Each mobile router comprises: a local area network interface to provide a link to first a local area network comprising a first client device; a wide area network interface to provide a link to the wide area network; at least one processor to control operation of the router. The wide area network interface is operable to establish communication link with the network management system. An application executable by the at least one processor selectively acquires predetermined data.
Apparatus and a method for supplying information
An apparatus is provided with a first receiver for receiving changing information relating to a plurality of different sets of data such as financial data and a second receiver for receiving said changing information in synchronism with said first receiver means. A data base is provided to store information received by the first receiver and a subscriber profile store stores information associating a subscriber with a group of said different sets of data. The apparatus is arranged to supply, via the mobile telecommunications network, information from the data base for the group of data sets associated in the subscriber profile store with a subscriber when communication with that subscriber is first established and thereafter to supply changing information relating to the group of data sets associated with that subscriber directly to the subscriber from the second receiver.
Stereo extension apparatus and method
Disclosed herein are a stereo extension apparatus and method. The apparatus includes a database that stores predetermined information as a result of Gaussian mixture model (GMM) training or hidden Markov model (HMM) training; a modified discrete cosine transform (MDCT) transformer that transforms a mono signal through MDCT, a feature parameter extractor that extracts a feature parameter of the mono signal from an MDCT coefficient output from the MDCT transformer, a side signal energy estimator that estimates subband energy of a side signal with reference to information stored in the database based on the feature parameter; an energy controller that obtains the MDCT coefficient of a side signal estimated from the subband energy of the estimated side signal, an inverse MDCT transformer that obtains an estimated side signal by transforming the MDCT coefficient of the estimated side signal through inverse MDCT.
A sound generator includes a diaphragm including n sub-diaphragms (n, the amount of the sub-diaphragms); n voice coils corresponding to the sub-diaphragms; a signal source for outputting signals of n channels; n high-pass filters for receiving the signals of n channels and outputting n high frequency signals; n low-pass filters for receiving the signals of n channels and outputting n low frequency signals; a first mixer for mixing the n low frequency signals and then outputting a low frequency signal; and n second mixers for mixing the low frequency signal and the n high frequency signals, and then outputting n driving signals. The n driving signals actuates the n corresponding sub-diaphragms for producing stereo sounds.
Distributed wireless speaker system with automatic configuration determination when new speakers are added
In an audio speaker network, setup of speaker location, sound track or channel assignation, and speaker parameters is facilitated by an application detecting speaker locations and prompting a user to input rough room boundaries and a desired listener location in the room. Based on this, optimum speaker locations/frequency assignations/speaker parameters may be determined and output.
Auditory environment recognition
A computing device can capture audio data representative of audio content present in a current environment. The captured audio data can be compared with audio models to locate a matching audio model. The matching audio model can be associated with an environment. The current environment can be identified based on the environment associated with the matching audio model. In some embodiments, information about the identified current environment can be provided to at least one application executing on the computing device. The at least one the application can be configured to adjust at least one functional aspect based at least in part upon the determined current environment. In some embodiments, one or more computing tasks performed by the computing device can be improved based on information relating to the identified current environment. These computing tasks can include location refinement, location classification, and speech recognition.
Bone-conduction anvil and diaphragm
Disclosed herein are methods and apparatuses for the transmission of audio information from a bone-conduction headset to a user. The bone-conduction headset may be mounted on a glasses-style support structure. The bone-conduction transducer may be mounted near where the glasses-style support structure approach a wearer's ears. In one embodiment, an apparatus has a bone-conduction transducer with a diaphragm configured to vibrate based on a magnetic field. The magnetic field being based off an applied electric field. The apparatus may also have an anvil coupled to the diaphragm. The anvil may be configured to conduct the vibration from the bone-conduction transducer. Additionally, the anvil may be coupled to a metallic component. The metallic component may be configured to couple to a magnetic field created by the bone-conduction transducer.
Method and apparatus for creating binaural beats using hearing aids
A hearing assistance system includes a pair of first and second hearing aids to generate a first acoustic signal having a first frequency and a second acoustic signal having a second frequency. When the first and second acoustic signals are each delivered to one of the ears of a listener being a hearing aid wearer, the listener perceives binaural beats at a third frequency being the difference between the first and second frequency. The effects of the binaural beats may include various health or other benefits to the hearing aid wearer.
Method and apparatus for signal reception using dynamically selectable modes
A communication system reduces power consumption of a radio receiver and/or ensures quality of signal transmission by using various modes of receiver operation. In one embodiment, the communication system is part of a hearing assistance system with a hearing aid including the radio receiver. In one embodiment, a mode of reception is selected during signal transmission based on a detected parameter indicative of quality of the signal transmission. In one embodiment, a hearing aid includes a radio receiver using independent sidebands to receive signals transmitted using each of an upper-sideband and a lower-sideband.
Hearing aid for providing phone signals
A hearing system includes a first hearing aid, the first hearing aid comprising: a first microphone for converting sound into electrical signals; a processor communicatively coupled to the first microphone, wherein the processor is configured to provide an output based on the electrical signals from the first microphone; a first speaker communicatively coupled to the processor, and is configured to provide an acoustic signal based on the output provided by the processor; and a first communication device configured to receive a control signal transmitted from a second hearing aid in response to a reception or detection of a signal associated with a phone by the second hearing aid; wherein the first hearing aid is configured to reduce a gain of the first hearing aid to a non-zero value in response to the control signal received from the second hearing aid.
Suspension system for micro-speakers
A speaker driver including a frame and a magnet assembly positioned within the frame. A sound radiating surface may be suspended over the magnet assembly. The sound radiating surface may include a top face and a bottom face, and the bottom face may face the magnet assembly. A suspension member may suspend the sound radiating surface over the magnet assembly. The suspension member may include a top side connected to the bottom face of the sound radiating surface and a bottom side connected to assembly support member that is separate from the magnet assembly. A voice coil extends from the bottom face of the sound radiating surface.
Preserving phase shift in spatial filtering
For preserving phase shift in spatial filtering is disclosed, an electronic device includes a microphone array. A filtering module spatially filters a plurality of received audio signals from the microphone array to increase the signal-to-noise ratio in one or more corresponding output audio signals. A phase module preserves a phase shift of at least one received audio signal in the corresponding output audio signal.
Interface circuit for connecting a microphone circuit to a preamplifier
An interface circuit is provided that is adapted to connect a microphone circuit to a preamplifier. The microphone circuit has a microphone and at least an output node and the preamplifier has at least an input node connected to the output node by the interface circuit. The interface circuit has at least a decoupling capacitor for DC decoupling the input node from the output node. The decoupling is connected between the input node and the output node. The interface circuit has at least one active circuit, comprising a resistor connected the decoupling capacitor. The resistor acts as part of a resistance multiplier and has an equivalent resistance that together with the decoupling capacitor defines a high-pass filter connected between the microphone and the preamplifier. The interface circuit may also have a biasing circuit connected to the resistor.
Headphone system for earbud speakers
The present invention relates to a personal headphone device, system and method configured to combine a headphone and earbud into one acoustical product. The headphone earbud device is configured with an adaptive connection for controlling the audio signals and/or device providing the audio signals. The adaptive connection includes an electro mechanical and/or mechanical connection so that when an earbud is placed into a headphone contact plates on the earbud mate with contact plates on the interior recess of the headphone so as to energize a loudspeaker in the headphone and or to control the device providing the audio signals.
Microphone stand mounting brackets
A mounting bracket system for mounting a loudspeaker monitor onto a microphone stand pole without requiring disassembly of either the loudspeaker monitor or the microphone stand. First and second mounting brackets may be mounted to a loudspeaker monitor or other product to be mounted. An indent on each mounting bracket is configured to engage a microphone stand or another elongated, pole-like structure, supporting the weight of the loudspeaker monitor through frictional forces.
A microphone boom is provided with an extendable microphone assembly, and a headset having such a microphone boom. The headset includes a casing accommodating the signal transmission circuitry and further includes a speaker adapted to serve a sound signal at the proximity of a user's ear and the speaker is protruding from the casing at a speaker-end of the casing and a microphone assembly is fixated relative to the casing distally with respect to the speaker-end.
Multi directional multiplexer
Described herein is an optical transmission cross-connect for routing wavelength signals to a bank of directionless transceivers. One embodiment (1) includes an array of four common-port fibers (3) for transmitting and receiving a multiplexed optical signal and an array of sixteen add/drop fibers (5) for receiving and transmitting demultiplexed signals including individual wavelength channels. A dispersive grism (7) simultaneously spatially separates the wavelength channels from the optical signals in a dispersion dimension. A lens (45) focuses each said spatially separated wavelength channel in the dispersion dimension. A Liquid Crystal on Silicon (LCOS) device (11) separately manipulates each of the focused spatially separated wavelength channels to selectively steer the wavelength channels in a switching dimension. A micro-electromechanical mirror (MEMS) array (13) independently selectively directs the wavelength channels in the switching dimension such that the wavelength channels are coupled to predetermined ones of the add/drop fibers (5).
Method and apparatus for measuring body balance of wearable device
A wearable device includes a communication unit that wirelessly communicates with a first external device; a motion sensor that senses the user's motion; and a control unit. The wearable device collects a first motion data generated by the user's motion and transmits the first motion data to the first external device, receives a first security level data and a second security level data from the first external device, and receives only the first security level data from the first external device when the wearable device is converted into a non-wearing state from a wearing state.
Data center network architecture
Data center network architectures that can reduce the cost and complexity of data center networks. The data center network architectures can employ optical network topologies and optical nodes to efficiently allocate bandwidth within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. The data center network architectures also allow computing resources within data center networks to be controlled and provisioned based at least in part on a combined network topology and application component topology, thereby enhancing overall application program performance.
Method and distribution channel for creating ancillary revenue streams from related media content
A method for creating revenue for content related to a broadcast program and a related subscription distribution channel and web page. The method includes providing a subscription distribution channel that is accessible by a user, obtaining the content related to the broadcast program, and making the content available to the user via the subscription distribution channel.
Multimedia content search system
Techniques described herein enable a service to receive search requests from client systems and perform an integrated search across databases containing informational data for broadcast content and broadband content. The service receives the search request from the client device and formulates a query for at least one broadband database and at least one partner broadcast database. The service queries each broadband database with a compatible query that the service creates using information regarding the type of database queries each partner's database requires. Partners pay the service provider a fee for placing data in the database or for having their database searched by the service. The service formats the data received from the searches of the databases into a user interface screen that is presentable by the client device. The screen information instructs the client device on how it should respond to any key presses by the user.
Systems and methods for automated media programming (AMP)
Automated media programming (AMP) systems and methods are provided. In one embodiment of an AMP system, a computer server is communicatively coupled to the Internet and provides a website for enabling uploading of media content, sorting the media content, and downloading the media content. Independent users are permitted to submit, edit, rate, and consume media content over a broadcast media channel or network. In some embodiments of the AMP system, content on the Internet is automatically searched and topics from the searched content are automatically identified. The topics are preferably indicative of currently relevant news or events and are indicative of a type of media content that will be requested for uploading from producers. The AMP system publishes the topics to the producers, receives and stores media content uploaded from the producers that relate to the respective topics, and enable users to select and download the media content.
Multi-option sourcing of content
A content manager initiates play back of corresponding content on a display screen. The corresponding content is received on a primary broadcast channel selected amongst multiple available channels. During play back of the corresponding content, the content manager receives selection of over-the-top content available over a secondary channel with respect to the primary broadcast channel. The over-the-top content includes supplemental content associated with the corresponding content. In response to receiving the selection of over-the-top content, the content manager: i) retrieves the over-the-top content, and ii) initiates play back of the over-the-top content on the display screen. Accordingly, the user can selectively retrieve and play back supplemental content associated with a primary broadcast channel.
System and method for aggregating devices for intuitive browsing
A media device includes a communication interface communicatively coupling the media device to one or more other media devices and a display, and a controller associated with the communication interface. The controller is adapted to access one or more templates comprising a layout of a graphical user interface (GUI). The controller further identifies one or more other media devices from which media content may be streamed and one or more media content streams available from each of the one or more media devices and determine, based upon the template and the one or more media content streams, at least one of the media content streams to display. The controller then acquires and outputs the at least one of the media content streams for display in accordance with the layout.
Cadence detection for interlaced video based on temporal regularity
A method is proposed for analyzing an interlaced video signal including a first sequence of fields. A temporal regularity estimation process is applied to the first sequence of fields to compute a first metric. Inputs of the temporal regularity estimation process include pixel values from at least two fields having respective ranks differing by more than one in the sequence. The same temporal regularity estimation process is applied to second and third sequences of fields to compute second and third metrics. The second sequence is derived from the first sequence by swapping fields having ranks of the form 2k and 2k+1 for any integer k, while the third sequence is derived from the first sequence by swapping fields having ranks of the form 2k−1 and 2k. The first, second and third metrics are compared in a determination of the time arrangement of the fields in the first sequence.
Systems and methods for operating media devices
A wireless adapter enables communication between a content source and a content player for rendering of content at the content source by the content player, and a remote controller allows for control of the content delivery, and one or more features of the content source, player, or both.
Remote management system for at least one audiovisual information reproduction device
Method for remote management of at least one audiovisual information reproduction device comprising a host server connected to each audiovisual information reproduction device, the host server comprising a database containing management information for each audiovisual information reproduction device, wherein the host server also comprises a site manager communicating with the database, and comprising a number of screens, at least one first screen comprising a menu displaying the list of audiovisual information reproduction systems, validating the choice of each audiovisual information reproduction device causing the display of a first series of screens that the operator can use to modify the operating parameters of at least one selected audiovisual information reproduction device and/or a second series of screens that the operator can use to order at least one song for downloading onto the audiovisual information reproduction systems from a chosen list of devices or to delete at least one song, and/or a third series of screens displaying information about the use of an audiovisual information reproduction device.
Inter-device communications using visible light
A visual light communication (VLC) medium is used to provide communicative coupling between two or more devices. The communicative coupling supports a variety of functions such as, for example, device discovery, content discovery, and seamless transfer of media between the two or more devices.
Content sequence technology
Content sequence technology, in which a channel subscribed to by a user of a content delivery network is identified and a genre of the identified channel is determined. A play sequence policy is selected for the identified channel based on the determined genre. The play sequence policy defines one or more rules used in determining an order to play content files on the identified channel. Display of the identified channel is controlled based on the selected play sequence policy.
Systems and methods for updating media asset data based on pause point in the media asset
Systems and methods for associating data with a media asset are provided. A plurality of messages from a plurality of users is received at a remote server. Each message identifies a play position within the media asset at which the respective one of the users paused the media asset. A reference play position is selected based on the play position identified by one of the plurality of messages. A number representing how many of the messages identify a play position that corresponds to the reference play position is computed. In response to determining that the number exceeds a threshold, a frame of the media asset that corresponds to the reference play position is selected. Data associated with the media asset is updated based on the selected frame.
Technique for providing on a program channel composite programming content attributed to different sources
In providing composite programming content from different sources on a program channel, a host processor joins IP multicast groups for which “live” contents from multiple sources are provided. Specifically, the host processor collects packets containing the live contents based on their destination addresses associated with the IP multicast groups. Segments of the received live contents are selected to realize the composite programming content, which is provided on the program channel.
Method and apparatus for mobile communication based ordering of on-demand digital content
A computer implemented method and apparatus for mobile communication based ordering of on-demand digital content (such as video content in a network-based pay TV service). In some embodiments the mobile communication is via an SMS cell phone text and payment of the ordered content is by billing a financial account associated with the owner of the cell phone. The method generates for display to the user, upon selection of digital content desired to be ordered by the user and accessed by a specific network-enabled device associated with the user, a unique video activation request number (VARN), the VARN comprising a first component which uniquely identifies a specific one or more Internet-enabled devices and a second component that uniquely identifies the ordered digital content. Access by the Internet-enabled device to the ordered digital content is authorized only after receipt from a message-based mobile communication device of a communication message which includes the VARN is associated with the owner of the cell phone.
Method and apparatus for generating bitstream based on syntax element
A method and apparatus for generating an optimized bitstream. In the method, a bitstream including first and second processing units is received. The video processing units are encoded to generate syntax data for syntax elements of the video processing units. The syntax data of the video processing units are grouped according to the type of syntax element, and the groups are arranged in a predetermined order to produce the optimized bitstream.
Adaptive video transcoding based on parallel chunked log analysis
Adaptive video transcoding based on parallel chunked log analysis is described. The adaptive video transcoding method comprises receiving an intermediate video stream generated from an intermediate transcoding. The method also receives an intermediate transcoding log stream associated with the intermediate video stream. The method partitions the intermediate video stream into a plurality of video chunks, where each video chunk corresponding to a portion of video data of the video stream. The method further generates video chunk statistics for each of the video chunks using the intermediate transcoding log stream and transcoding parameters for each of the video chunks based on the generated video chunk statistics. The method transcodes each of the video chunks to a target format in parallel based on the generated transcoding parameters. The method assembles the transcoded video chunks into a target video stream in the target format.
More accurate advanced residual prediction (ARP) for texture coding
Techniques for advanced residual prediction (ARP) for coding video data may include inter-view ARP. Inter-view ARP may include identifying a disparity motion vector (DMV) for a current video block. The DMV is used for inter-view prediction of the current video block based on an inter-view reference video block. The techniques for inter-view ARP may also include identifying temporal reference video blocks in the current and reference views based on a temporal motion vector (TMV) of the inter-view reference video block, and determining a residual predictor block based on a difference between the temporal reference video blocks.
Signaling view synthesis prediction support in 3D video coding
In one example, a video coder is configured to code information indicative of whether view synthesis prediction is enabled for video data. When the information indicates that view synthesis prediction is enabled for the video data, the video coder may generate a view synthesis picture using the video data and code at least a portion of a current picture relative to the view synthesis picture. The at least portion of the current picture may comprise, for example, a block (e.g., a PU, a CU, a macroblock, or a partition of a macroblock), a slice, a tile, a wavefront, or the entirety of the current picture. On the other hand, when the information indicates that view synthesis prediction is not enabled for the video data, the video coder may code the current picture using at least one of intra-prediction, temporal inter-prediction, and inter-view prediction without reference to any view synthesis pictures.
Three-dimensional video with asymmetric spatial resolution
A video coding device may be configured to code a bitstream including multiple views plus depth information. Two of the views may have reduced resolutions, while a third view may have a full resolution. The third view may be predicted relative to upsampled versions of the two reduced-resolution views. Each view may include texture data and depth data, such that a view component may include a texture component and a depth component. Moreover, the texture and depth components may be arranged within an access unit according to a particular order, which may simplify component extraction from the access unit.
Motion vector predictors (MVPs) for bi-predictive inter mode in video coding
This disclosure describes video coding techniques applicable to a bi-predictive inter mode that uses adaptive motion vector prediction (AMVP). In particular, this disclosure describes techniques for encoding or decoding video data in which AMVP is used to code a first motion vector and a second motion vector associated with a current video block that is coded in the bi-predictive inter mode. More specifically, this disclosure describes techniques in which one motion vector of a bi-predictive video block can be used to define a candidate motion vector predictor (MVP) for predicting another motion vector of the bi-predictive video block. In many examples, a scaled version of the first motion vector of the bi-predictive video block is used as the MVP for the second motion vector of the bi-predictive video block. By defining an additional MVP candidate for the second motion vector of a bi-predictive video block, improved compression may be achieved.
Advanced video coding to multiview video coding transcoder
Systems, methods and computer program products for transcoding advanced video coding (AVC) bitstreams into multiview video coding (MVC) bitstreams are described. In some implementations, a MVC transcoder may be used to convert non-anchor pictures (e.g., at a specified temporal point) into anchor pictures by using only inter-view prediction. The MVC transcoder also may utilize inter-view reference pictures (in addition to temporal reference pictures) in the motion estimation/mode decision functions of the non-anchor pictures. The output of the MVC transcoder may be one or more MVC bitstreams each representing a different view of a same scene or image.
Video coding using function-based scan order for transform coefficients
Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
Method of deriving motion information
Provided is a method extracts a merge index from a bit stream, constructs a merge candidate list using available spatial and temporal merge candidates, selects a merge predictor among merge candidates using the merge index, and sets motion information of the merge predictor as motion information of the current prediction unit. The temporal merge candidate includes a reference picture index and a motion vector, and a motion vector of a temporal merge candidate block of a temporal merge candidate picture is set as the motion vector of the temporal merge candidate. Accordingly, the coding efficiency of the motion information is improved by including various merge candidates. Also, the computational complexity of an encoder and a decoder is reduced maintaining improvement of coding efficiency by adaptively storing motion information of reference picture and adaptively generating a temporal merge candidate.
Motion prediction or compensation method
Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. A motion prediction or compensation method provided in the embodiments of the present invention includes: acquiring a candidate motion vector set; conducting a refined search for an optimal motion vector based on information of the candidate motion vector set; and performing motion prediction or compensation by using the motion vector acquired by the refined search. This improves coding performance and meanwhile maintains reasonable complexity.
Apparatuses and methods for HDR image encoding and decoding
To make available a HDR image encoding mechanism with strongly improved usability, we describe an image encoding unit (301) arranged to encode a high dynamic range image (IM_HDR-in) comprising: —an LDR selector (311) for identifying a low dynamic range of luminances (R_Norml_LDR) or corresponding range of luma code values (R_LDR) within the total range of luminances (Range_HDR) covered by the high dynamic range image; —a HDR selector for selecting at least one complementary range (R_above) within the total range of luminances (Range_HDR), comprising mostly luminances not covered by the low dynamic range of luminances (R_Norml_LDR); —a code mapping unit (315) arranged to encode in a first image (Im_1*), having a luma component comprising N bit code words, pixel luminances of the high dynamic range image (IM_HDR-in) falling within the low dynamic range of luminances (R_Norml_LDR) to code values (Y_out) according to a first mapping (CMAP_L), and pixel luminances of the high dynamic range image (IM_HDR-in) falling within the at least one complementary range (R_above) to code values (Y_out) according to a second mapping (CMAP_H), wherein the first and second mappings map to disjunct subranges of the range of luma code values of the first image (RcTot_Im1).
Methods and electronic devices for quantization and de-quantization
Electronic devices for de-quantization are disclosed. In one configuration, the electronic device includes a local storage storing a plurality of first user-defined sub-factors and a plurality of second sub-factors and a plurality of default de-quantization scales; a first multiplier connected to the local storage and generating a plurality of user-defined de-quantization scales by multiplying the first user-defined sub-factors and the second sub-factors; a multiplexer connected to the local storage and the first multiplier and selectively outputting one of the generated user-defined de-quantization scales and the stored default de-quantization scales for a block of a macro-block (MB) of a bitstream to be decoded; and a second multiplier connected to the multiplexer and generating a plurality of inverse quantized coefficients by multiplying the output de-quantization scales from the multiplexer by the quantized coefficients.
Method and apparatus for scalably encoding and decoding video signal
In one embodiment, the method includes predicting at least a portion of a current image in a current layer based on at least a residual coded portion of a base image in a base layer, a reference image, shift information for samples in the predicted current image, and offset information indicating a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image. The residual coded portion represents difference pixel data.
Sparse coding dictionary priming
A method and apparatus for performing sparse coding dictionary priming are disclosed. Sparse coding dictionary priming may include iteratively training a coding dictionary, which may include a plurality of codewords or bases. Iteratively training the coding dictionary may include identifying a sampling index cardinality, identifying a portion of a video stream, decomposing the portion of the video stream, and updating the codeword based on the portion of the video stream. Decomposing the portion of the video stream may include randomly identifying a set of codewords from the plurality of codewords wherein a cardinality of the set of codewords is the sampling index cardinality and wherein the sampling index cardinality is less a cardinality of the plurality of codewords, and determining a codeword having a maximum correlation with the portion of the video stream from the set of codewords.
Visual displays and telePresence embodiments with perception of depth using one or more reflected surface
System and method for a visual display system with a two-way mirror, which is between the observation zone and the image display device, positioned at an angle to reflect a backdrop surface that may be wider than the image display device or a backdrop with mirrored sides to extend the visual perception of the backdrop surface. A camera may be included with the visual display system for telepresence applications. The two-way mirror may extend into wall panels on the sides to form a room that appears to extend in depth by the reflection of the wall panels and a backdrop panel.
Image pickup apparatus that determines shooting composition, method of controlling the same, and storage medium
An image pickup apparatus capable of generating image signals for viewing images shot in a composition (vertical or horizontal) intended by a photographer as a three-dimensional image. The apparatus has an image pickup device for converting an optical image to a picked-up image signal as an electric signal. The device includes a plurality of unit pixels, each of which has a plurality of photo diodes for converting the optical image to the picked-up image signal. When an image pickup operation is performed, a posture of the image pickup apparatus is determined, and the plurality of photo diodes in each unit pixel are grouped into a plurality of photo diode groups according to a result of the determination. A plurality of image signals are generated from picked-up image signals output from the photo diode groups, respectively.
Digital broadcast receiving method providing two-dimensional image and 3D image integration service, and digital broadcast receiving device using the same
A digital broadcast receiving apparatus for providing an integrated service of a 2D image and a 3D image. The apparatus comprising a demultiplexing unit configured to demultiplex a received digital broadcast signal; a PSIP or PSI/SI processor configured to extract at least any one of 3D service information related to a 2D image channel or service and 2D service information related to a 3D image channel or service from the demultiplexed digital broadcast signal; a decoder configured to decode an extension view video stream and a base view video stream from the demultiplexed digital broadcast signal; and an output formatting unit configured to format the extension view video stream and the base view video stream based on at least any one of the 3D service information and the 2D service information.
Method for scaling channel of an image
The present invention relates to a method for scaling a first channel, wherein the method comprises computing a low resolution second channel based on a transformation of the second channel with a transformation function used to transform high resolution channel into a low resolution channel; computing a correlation function between the low resolution second channel and the first channel; determining a predicted second channel having the high resolution from the low resolution second channel according to a prediction method; computing an high-pass second channel based on the difference between the second channel and the predicted second channel and based on the correlation function; determining a predicted first channel having the high resolution from the first channel according to the prediction method.
Conversion of an image to a transparency retaining readability and clarity of detail while automatically maintaining color information of broad areas
The present invention converts an image into a transparency, or “foreground image”, on which the readability of text and other detail is preserved after compositing with a background, while maintaining color information of broad areas of the image.
Image processing device, method of processing image, and image processing program including false color correction
There are provided a device and method that correct a false color occurring in a locally highlighted region in an image. A false color pixel is detected in data conversion processing of generating an RGB array image from an RGBW array image, low-band signals corresponding to respective RGBW colors that are different according to whether a pixel is a false color pixel, and the RGBW array is converted by interpolation processing to which the calculated low-band signals are applied to generate the RGB array image. The interpolation processing is performed using the low-band signals on an assumption that a W low-band signal mW, and RGB respective low-band signals mR, mG, and mB have a proportional relation in a local region. When a pixel of interest is a false color pixel, the low-band signal is calculated by an application of a low-pass filter having a coefficient in which a contribute rate of pixel values in the vicinity of the pixel of interest is made relatively lower than that of separated pixels.
Image processing apparatus and method
First image data obtained by capturing an image of a subject under a first light condition, and second image data obtained by capturing an image of the subject under a second light condition different from the first light condition are input. The sampling positions of colors used to generate correction parameters are acquired. First color signal values are sampled from the sampling positions in the first image data, and second color signal values are sampled from the sampling positions in the second image data. Correction parameters used to correct the first image data which depends on the first light condition into image data which depends on the second light condition are generated based on the first and second color signal values.
Information processing apparatus, control method of information processing apparatus, and storage medium for determining whether a projection pattern of a current frame differs from that of a previous frame
An information processing apparatus includes a data generation unit to sequentially generate projection patterns. A projection unit projects a projection pattern onto a target object every frame. A trigger signal generation unit generates a trigger signal when it is detected that the projection pattern of the current frame, to be projected onto the target object, is different from the projection pattern of a previous frame. An imaging unit images the target object, onto which the projection pattern is projected, according to the trigger signal.
Color imaging apparatus having color imaging element
A color imaging apparatus comprising: a color imaging element comprising a plurality of pixels and color filters of a color filter array arranged on the plurality of pixels, the color filter array including first filters corresponding to a first color that most contributes to obtaining luminance signals and second filters corresponding to two or more second colors, and the first filters including two or more sections adjacent each other in horizontal, vertical, and oblique directions; a direction determination unit acquiring pixel values of pixels of the two or more sections of the first filters near a target pixel of demosaicking processing and determining a correlation direction of luminance; a demosaicking processing unit that calculates a pixel value of another color at a pixel position of the target pixel and that uses one or more pixels of another color in the correlation direction to calculate the pixel value.
Image processing apparatus and image processing method
An object detection unit of a network camera detects an object including a human figure from image data. An event detection unit analyzes the image data based on a result of the object detection by the object detection unit. Based on a result of the image data analysis, an event detection unit determines to make identifiable to a client a human figure that should be monitored by the client and to apply masking to a human figure that should not be monitored by the client to make it unidentifiable to the client.
Methods for detecting and recognizing a moving object in video and devices thereof
A method, non-transitory computer readable medium, and apparatus that extracts at least one key image from one or more images of an object. Outer boundary markers for an identifier of the object in the at least one key image are detected. An identification sequence from the identifier of the object between the outer boundary markers in the at least one key image is recognized. The recognized identification sequence of the object in the at least one key image is provided.
Image-monitoring device and method for detecting events therefor
Disclosed are an image monitoring device capable of detecting a meaningful event on the basis of a scenario by providing a function of setting various combinations of monitoring events in a monitored image in which a plurality of monitoring events are set, and an event detecting method thereof. The event detecting method of an image monitoring device includes: obtaining a monitored image; detecting an occurrence of a first monitoring event with respect to an object from the obtained monitored image; detecting an occurrence of a second monitoring event with respect to the object from the obtained monitored image; and storing information regarding the detected occurrence of the second monitoring event.
Multicasting a videoconference recording to a plurality of clients
A federated media server system. The federated media server system may include a plurality of media servers. A first media server may be coupled to a second media server over a network. The first media server may also be coupled to a third media server over the network. Additionally, the second and third media servers may be coupled to a plurality of respective clients. The first media server may be configured to record video, e.g., videoconferences, and stream recordings to clients and/or the second and third media servers. The second and third media servers may assist in performing video recording, transcoding, storage of recordings, multicasting, etc.
Method for tracking displays during a collaboration session and interactive board employing same
A method is described for manipulating a view displayed on one or more follower participants' devices to track a view displayed on a lead participant's device. A request to manipulate the view displayed on the one or more follower participant devices is received. The lead participant is identified. The follower participants are identified. A lead view of the lead participant is determined. The lead view is communicated to the follower participants computing devices for display. A computing device and a non-transitory computer readable medium having instructions configured to implement the method are also described.
Audio-video remote visitation telecommunications technology
A telecommunications system for use in a secure facility such as a jail, prison or the like. The systems, devices and methods disclosed provide telecommunications, email, other messaging, financial services, vending, and commissary or canteen services for inmates of a secure facility with respect to family, friends and others. The system also includes a system for video visitation via audio-visual communication. The system includes a phone server adapted to be communicatively connected to an external service provider; a monitoring station communicatively connected to the phone server; an account manager server communicatively connected to the phone server, and at least one telecommunications device disposed at the secure facility for use by the inmate and which is communicatively connected to the phone server. A method of telecommunicating, including video visitation, via the system is also disclosed.
Communication control system and control device
A communication control system includes a first control device; a second control device, wherein the first control device and the second control device are grouped together by group identification information; a detecting unit configured to detect image data displayed on a display unit connected to the first control device; a first communication control unit configured to establish a session for performing data communication with the second control device identified by the group identification information, and send the image data; and a display control unit configured to implement control to display the image data sent from the first communication control unit.
Apparatus and method for congestion control in wireless communication networks
Embodiments of wireless communication devices and method for congestion control in a wireless network are generally described herein. Some of these embodiments describe a method, performed by an evolved NodeB (eNodeB), that includes operations of determining that a congestion condition exists on the network. An example method can also include transmitting a suspension notification to a user equipment (UE), the UE being in an RRC_CONNECTED state with the eNodeB, to notify the UE that a radio bearer (RB) operating in the network will be suspended. Other methods and apparatuses are also described.
Digital imaging apparatus and control method thereof
A digital imaging apparatus and a control method thereof are provided. The digital imaging apparatus includes a body including a display unit configured to output an image signal as an image, and an image encoder; a user input unit comprising an image input unit configured to generate and output an outside image signal that corresponds to an outside image and is not encoded or compressed; and a data interface configured to transmit the outside image signal output by the image input unit to the body, wherein the image encoder is configured to encode the outside image signal, which is received by the body from the data interface, in a predetermined format.
Systems and methods for re-recording content associated with re-emerged popularity
Systems and methods for re-recording content associated with popularity that re-emerged are provided. A plurality of media assets is recorded. Responsive to determining that popularity of a given one of the plurality of media assets fell below a first threshold, the given media asset is selected for deletion and the given media asset is added to a list of a plurality of media assets that have been selected for deletion. Popularity for the given media asset in the list is retrieved after selecting the given media asset for deletion. The retrieved popularity of the given media asset, which previously fell below the first threshold, is compared to a second threshold. In response to determining that the retrieved popularity of the given media asset, which previously fell below the first threshold, is now above the second threshold, an action relating to re-recording the given media asset is performed.
Recording medium, playback device, recording device, playback method and recording method for recording progressive pictures at high frame rate
A recording medium on which video streams, control programs and index table are recorded. The video streams include video stream composed of progressive pictures and video stream composed of interlace pictures. The video stream composed of the progressive pictures has a mandatory rate or an optional rate. The index table indicates correspondence between titles and control programs. A control program corresponding to first play title and top menu title excludes a playback path, which specifies a playback of the progressive pictures in the video stream at the optional rate, from a playback target and instructs to perform a playback in accordance with another playback path.
Recording apparatus, its control method and program, and imaging apparatus having the recording apparatus
A imaging apparatus controls a lighting unit such that when the first recording medium is selected, the lighting unit is turned into a state different from a predetermined state in a state where recording into the first recording medium is stopped while recording into the second recording medium, and turned into the predetermined state in accordance with a recording start instruction of the first recording medium during recording into the second recording medium, and when the second recording medium is selected, the lighting unit is turned into the state different from the predetermined state in a state where recording into the second recording medium is stopped while recording into the first recording medium, and turned into the predetermined state in accordance with the recording start instruction of the second recording medium during recording into the first recording medium.
Shooting apparatus and method for controlling shooting apparatus
A camera includes: a shooting section that outputs images of an object; a moving image shooting control section that controls the shooting section to repeat shooting under predetermined shooting conditions at a predetermined frame rate; a moving image generation section that generates moving images based on images shot under the predetermined shooting conditions, respectively; an image extraction section that extracts a first image and a second image based on a predetermined condition from each of the moving images; a display section; and a display control section that performs control to simultaneously multi-display the first image and the second image of each moving image on the display section.
Generating a genre-based video mosaic in a cable services network
Methods and systems are provided for generating a genre-based video mosaic from multiple of video sources in a cable services network system. A cable services head end periodically searches a database for a genre descriptor identifying a type of programming broadcast in the cable services network, selects a group of video sources associated with the genre descriptor which are currently being broadcast in the cable services network, and generates a mosaic including the group of video sources associated with the genre descriptor which are currently being broadcast in the cable services network. A set-top box receives the mosaic from the head end, executes an application program enabling a subscriber to selectively tune the video sources in the mosaic, and displays the mosaic on a broadcast channel in the cable services network.
Image processing device, object selection method and program
There is provided an image processing device including: a data storage unit that stores object identification data for identifying an object operable by a user and feature data indicating a feature of appearance of each object; an environment map storage unit that stores an environment map representing a position of one or more objects existing in a real space and generated based on an input image obtained by imaging the real space using an imaging device and the feature data stored in the data storage unit; and a selecting unit that selects at least one object recognized as being operable based on the object identification data, out of the objects included in the environment map stored in the environment map storage unit, as a candidate object being a possible operation target by a user.
Systems and methods for saving and restoring scenes in a multimedia system
Systems and methods for saving and restoring scenes in a multimedia system with minimal configuration are provided. The techniques of the present invention can allow the states of the components in the multimedia system to be captured in a scene. Once the scene has been saved, the scene can be restored at a later time. A remote control system for recommending scenes by comparing states of components in the current scene with states of components in saved scenes is also provided. The remote control system can also recommend scenes based on usage patterns. Moreover, the remote control system can allow users to designate one or more saved scenes as favorite scenes.
Video signal transmitter apparatus and receiver apparatus using uncompressed transmission system of video signal
In a video signal transmitter apparatus that removes a part of a blanking interval of a video signal, generates a converted video signal, based on the video signal including an active interval including video data and the blanking interval excluding the video data, a frequency divider divides a frequency of a pixel clock in synchronization with the video signal by a ratio of transmission frequency division, generate and output a frequency-divided clock as a converted pixel clock. A controller controls a first storage unit to write the video signal for the active interval of the video signal, and read the video signal for the active interval of the converted video signal and output a read video signal as the converted video signal, and to remove a part of a signal included in a horizontal blanking interval existing periodically every horizontal line for the blanking interval of the video signal.
Reference voltage circuit and image-capture circuit
A reference voltage circuit for generating a reference voltage to be referred when a pixel signal is digitally converted, includes ramp voltage generating means for generating a ramp voltage which drops from a predetermined initial voltage at a certain gradient, a transistor for forming, together with the ramp voltage generating means, a current mirror circuit, and gain change means for changing a current value of a current flowing from a predetermined power supply via the transistor to change the gradient of the ramp voltage generated by the ramp voltage generating means.
Pixel correction method
In a method for correcting defective pixels of an image sensor which has a plurality of pixels for generating respective exposure dependent pixel signals, a defect characteristic for each pixel is associated with the image sensor and comprises information at least on whether the pixel is unusable, is usable without limitations or corresponds to one of a plurality of predefined defect classes. The method comprises a determination being made after the generation of the pixel signals for each pixel, at least when the defect characteristic of the pixel does not correspond to an unusable pixel or to a pixel which can be used without limitations, in dependence on at least the associated defect class of the pixel and on pixel signals of a plurality of adjacent pixels, whether the generated pixel signal of the pixel should be corrected, with the generated pixel signal of the pixel being replaced with a replacement value if this is the case.
Subliminal frame insertion
Insertion of subliminal frames in content is performed at a content receiver. The content receiver may receive content, analyze a setting, and modify the received content based on the analyzed setting. The content receiver may modify the received content by periodically inserting subliminal frames in the received content as specified by the setting. In some implementations, the content may include video content and the subliminal frames may be one or more images. The inserted subliminal frames may be subliminally perceptible but consciously imperceptible by a human viewer of the content when the content is played. As such, viewing of the content that includes the inserted subliminal frames may result in subliminal learning by a human viewer. In various implementations, one or more conditions included in the analyzed setting may specify that certain subliminal frames are to be inserted when the content has certain characteristics, such as a rating or description.
Random access addressing on active pixel image sensor
An active pixel image sensor comprises a pixel array of active pixels that are capable of being random access addressed to provide pixel readout signals from the addressed pixels on N output lines, where N is a plural integer and M ADC lanes capable of performing analog-to-digital conversion of pixel readout signals, where M is a plural integer less than N. A switching arrangement is capable of selectively connecting output lines to the M ADC lanes. A control unit provides random access addressing of the pixels, and in synchronisation therewith controls the switching arrangement to connect the output lines on which the addressed pixels provide pixel readout signals to ADC lanes.
System and method of recognizing signal patterns
A system of recognizing signal pattern for recognizing a signal pattern of an electronic device includes a determining unit coupled to the electronic device for outputting an operating command to the electronic device according to an operating state, wherein the electronic device generates a light signal according to the operating command, and an image capturing unit coupled between the determining unit and the electronic device for capturing the light signal to generate a first signal pattern to the determining unit, such that the determining unit determines whether the first pattern corresponds to the operating state.
Image processing apparatus, image processing method, and program
There is provided an image processing apparatus including an image information combining unit that performs a pixel value combining process on a long-time exposure pixel and a short-time exposure pixel. The pixel information combining unit calculates a plurality of blending ratios based on pixel values of a plurality of pixels of different periods of exposure time, determines an applied blending ratio, which is applied to a blending process for the long-time exposure pixel and the short-time exposure pixel, based on the plurality of blending ratios, and determines pixel values of an output image or an intermediate image which is applied to produce the output image, by the blending process for the long-time exposure pixel and the short-time exposure pixel to which the applied blending ratio is applied.
Imaging device, method for processing image, and program product for processing image
For pixel signals of a plurality of pixels arranged in a first pixel area arranged in a two dimensional matrix form, a size of the first pixel area is converted to output first image data, and for pixel signals of pixels arranged in a second pixel area smaller than the first pixel area, a size of the second pixel area is converted to output second image data, wherein an operating mode is changed in response to the size of the second pixel area.
Disclosed are devices, systems, methods, and non-transitory computer-readable storage media for displaying useful countdown timers on a media capture device. A media capture device can increase contrast between countdown timer and the video of a scene to be captured by a media capture device and adjust the position and size of a counter displayed on the device based on whether the object is determined to be closer or further than a predetermined threshold distance. Countdown timers can be triggered by detection of objects and gestures.
Super-resolution based on optical image stabilization
A system and method for creating a super-resolution image using an image capturing device. In one embodiment, an electronic image sensor captures a reference optical sample through an optical path. Thereafter, an optical image stabilization (OIS) processor to adjusts the optical path to the electronic image sensor by a known amount. A second optical sample is then captured along the adjusted optical path, such that the second optical sample is offset from the first optical sample by no more than a sub-pixel offset. The OIS processor may reiterate this process to capture a plurality of optical samples at a plurality of offsets. The optical samples may be combined to create a super-resolution image.
Estimation of picture motion blurriness
The invention relates to a method for estimating a blurriness value based on a series of at least two frames acquired within a period of time greater than or equal to a given exposure time, the frames being grouped in at least one couple of frames, characterized in that it comprises determining, for each couple of frames of the series, first and second values corresponding to a displacement according to a first direction and a second direction, between the first frame and the second frame of a couple of frames, determining a first blur measure for one direction among the first and second directions by calculating a metric based on the displacement values for each couple of frames of at least a subset of the series, determining a second blur measure for the other direction among the first and second directions by calculating a metric applied to the displacement values for each couple of frames of the series of frames and determining a blurriness value based on the first and second blur measures.
Electronic device and method for driving camera module in sleep mode
A method for operating an electronic device which is in a first mode is provided. The method includes detecting a grip state of the electronic device, detecting a change in tilt when the detected grip state is equal to or greater than a predetermined value, and switching a mode from the first mode to a second mode when the detected change in tilt is within a set tilt range.
Content display controls based on environmental factors
Approaches are described for controlling and filtering the display of content by computing devices. In particular, a mobile computing device can adjust the playing of media content (e.g., audio, video, images, games, ringtones) according to situational appropriateness and other environmental factors occurring around the device. For example, a mobile computing device such as a smart phone could use image and audio information captured by its sensors to determine that minors are present within the vicinity of the mobile phone, and filter certain portions of media content that would be deemed inappropriate for those minors. The environmental information can be determined based on data gathered by various sensors of the mobile device, including but not limited to cameras, microphones, global positioning system (GPS) devices, light sensors and others.
Image device and focus control method
When reliability of a defocus amount which is calculated using a signal from a region 50A is low, a digital camera expands the phase difference detection target region to the regions 50A, 50B, and 50C. Further, the digital camera calculates a defocus amount using a correlation operation result of an output signal group of pixel cells 31R in an odd numbered column and an output signal group of the pixel cells 31L in an odd numbered column and a correlation operation result of an output signal group of pixel cells 31R in an even numbered column and an output signal group of the pixel cells 31L in an even numbered column, in the regions 50A, 50B, and 50C.
Focusing apparatus, focusing method and medium for recoring the focusing method
Provided are a focusing apparatus for generating an image signal by converting image light incident through a focus lens to an electrical signal by an image pickup device, storing the image signal in a memory, calculating an AF evaluation value for an image signal read from the memory in a direction different from a reading direction of the image pickup device, and driving the focus lens by deriving a focus lens position corresponding to the calculated AF evaluation value, a focusing method thereof, and a recording medium for recording the focusing method. Accordingly, a focus can be correctly adjusted for various subject images, and a focus can be effectively adjusted for the images even in a high speed capturing mode.
Imaging device and electronic apparatus
A solid-state imaging device includes a plurality of pixels each of which includes a photoelectric conversion unit that generates charges by photoelectrically converting light, and a transistor that reads a pixel signal of a level corresponding to the charges generated in the photoelectric conversion unit. A phase difference pixel which is at least a part of the plurality of pixels is configured in such a manner that the photoelectric conversion unit is divided into a plurality of photoelectric conversion units and an insulated light shielding film is embedded in a region for separating the plurality of photoelectric conversion units, which are divided, from each other.
Method and apparatus for automatically capturing and managing images
According to one embodiment of the invention, a camera determines whether to acquire an image (e.g., automatically), determines whether to store the acquired image, and determines how to store the acquired image.
Method and apparatus for automatically capturing and managing images
According to one embodiment of the invention, a camera determines whether to acquire an image (e.g., automatically), determines whether to store the acquired image, and determines how to store the acquired image.
Systems and methods for updating camera characteristics using a remote computing device
This disclosure relates to systems and methods for adjusting camera device characteristics using a remote imaging server. The camera device may take an initial image before the user takes a picture. The initial image is provided to the imaging server over a network. The imaging server analyzes the initial image and assesses which image parameters may need to be adjusted to capture a higher quality picture. The image parameters may include, but are not limited to, brightness, reflectivity, user vibrations, skin tone, subject movement, light sources, and/or user preferences. The imaging server may provide recommendations or adjustments to the camera device prior to the user taking a picture. The imaging server may also prompt the user to position or orientation of the camera device or a subject prior to taking a picture.
System and method for human computer interaction
The present invention relates to the technical field of the human computer interaction, more particularly to, a system and method for human computer interaction. The system for human computer interaction comprises a projection unit, a first image sensing unit, a second image sensing unit, an interface unit, an image processing unit, a projected interface processing unit, and a controlling unit. The system for human computer interaction provided by the present invention may easily project the human computer interaction interface on all kinds of planes encountered in people's daily life, to realize display of the human computer interaction interface everywhere, and improve users' experience.
Auto-exposure method using continuous video frames under controlled illumination
An illumination control process for use in a digital image capture and processing system includes illuminating an object in the field of view with different pulses of illumination over a pair of image frames, detecting digital images of the illuminated object over these image frames, and decode processing the digital images. In an embodiment, upon failure to read a symbol in one of the first and second images, these digital images are analyzed in real-time, and based on the results of this real-time image analysis, the exposure time is adjusted during subsequent image frames. In another embodiment, upon failure to read a symbol in one of the first and second images, these digital images are analyzed in real-time, and based on the results of this real-time image analysis, the energy level of the illumination is adjusted during subsequent image frames.
Image capture device in a networked environment
Described herein are methods and devices that employ wireless network to control the lighting of a target image scene or subject. As described, connected environments enable control of lighting devices within the environment through the use of a network. Some embodiments of the imaging devices described herein may employ the network to control lighting devices for the purpose of illuminating a target scene or subject. Certain embodiments may employ data regarding camera location, subject location, light bulb location, and the parameters of each light bulb in a room to calculate desired lighting parameters for capturing an image of the subject, and may further be able to wirelessly adjust the light bulb parameters to match the calculated parameters.
Imaging apparatus and audio processing apparatus
An audio signal acquired by an audio acquisition unit during a predetermined period from when a drive signal has been output is analyzed, and a noise reduction period is determined based on a specific frequency component included in the audio signal of the predetermined period. The noise generated in the noise reduction period is then reduced from the audio signal acquired by the audio acquisition unit.
Video and map data synchronization for simulated athletic training
The pending disclosure includes a computer server receiving a video file and a global positioning system (GPS) data file. The video file includes video frames each having a timestamp and the GPS data file includes portions of geographic data each having a timestamp. Further, the computer server receives video user input from a user device indicating a user selection of a synchronization video frame and a GPS user input from the user device indicating a user selection of a synchronization portion of geographic data. The computer server processes the selected synchronization video frame and the synchronization portion of geographic data to determine the timestamp of both the synchronization video frame and the synchronization portion of the geographic data. Further, the computer server synchronizes the GPS data file with the video file based on the timestamp of the synchronization video frame and the synchronization portion of the geographic data.
System and method for controlling access to a server on an image processing device
Methods, systems, and computer-readable media are provided. Some embodiments include generating credentials for accessing a transmission service; sending, from a first application to a second application, the credentials and a request to perform operations related to a scan job; receiving, at the first application from the second application, credentials from the second application, and a request to access the transmission service; determining whether the credentials from the second application are valid; and in response to determining that the credentials from the second application are valid, getting a file from the second application using the transmission service; and sending the file to a destination.
Methods and systems for estimating half-tone frequency of an image
The disclosed embodiments illustrate methods and systems for estimating a half-tone frequency of an image. The method includes combining, by one or more processors, a first binary block, obtained from a portion of the image, with one or more second binary blocks to create a third binary block. Each of the one or more second binary blocks is obtained by shifting the first binary block. The method further includes estimating, by the one or more processors, the half-tone frequency of the portion of the image, based on the first binary block and the third binary block.
Systems, methods and computer program products for fax delivery and maintenance
This disclosure is directed to systems and methods for the delivery and maintenance of faxes where the faxes may remain at a faxing system for a minimal amount of time. The faxing system may send a queued fax to a connector responsive to a request from the connector to pull or retrieve a fax. The connector is configured to send a release notification to the faxing system after the fax is received. The faxing system is configured to delete the queued fax as soon as confirmation of the delivery of the fax can be determined or when an expiration time has elapsed.
Integrated platen scanner and document handler for a copier, multifunctional printer or standalone scanning device
An integrated document handling and platen scanning apparatus is provided. The apparatus includes a main body; a platen glass positionally fixed to the main body; a CVT glass area positionally fixed to the main body; a first image module attached to the main body, the first image module being movable across the platen glass to scan an image on a first side of a document; a document handler attached to the main body and configured to invert the document and to feed the document across the CVT glass area; and an attachment point on the main body that attaches the main body to a copier body of a photocopier such that the main body, platen glass, first image module, and document handler move as a unit relative to the copier body. The first image module is configured to remain stationary and scan the image on the first side of the document as the document is fed across the CVT glass area.
Electronic device and method for printing based on information written by an external device in a power-off state
An electronic device comprises: a management unit configured to manage device information of the electronic device by storing the device information in a first storage unit; a communication unit configured to communicate with an external device according to short distance wireless communication; a storage control unit configured to control, when the electronic device transits from a power-on state to a power-off state, to write the device information stored in the first storage unit in a second storage unit; and a control unit configured to control, upon receiving a read request or write request of the device information from the external device via the communication unit, to read or write the device information stored in the second storage unit when the electronic device is in the power-off state.
Image forming apparatus, and control method for image forming apparatus
An image forming apparatus is provided that is capable of returning from a sleep state in response to detection of a user or upon receipt of an input, wherein notification of failure to detect a user is provided if the image forming apparatus returns from a sleep state based on receipt of an input for more than a predetermined number of times.
Printing apparatus that prints an image on an envelope
A printing apparatus prints an image in a right direction based on an open/close state of a flap of a held envelope and on a position of the flap received from a user. A control method for controlling a printing apparatus, includes determining whether an envelope having a flap is held by a holding unit with its flap opened or the envelope is held by the holding unit with its flap closed, receiving, from a user, a front end, a far side, or a back end in the conveyance direction of the envelope as a position of the flap of the envelope held by the holding unit, and performing control such that a direction of an image to be printed on the envelope is decided based on a result of the determination and on the received position of the flap, and the image is printed on the envelope.
Data processing apparatus and method for processing data
An apparatus includes a detection unit configured to detect a touch operation performed on an operation panel that displays a display screen in which content of processing is set, a reception unit configured to receive the touch operation detected by the detection unit, and a control unit configured to control changes to a reception condition under which the reception unit receives the touch operation. In a case where touch time of the touch operation detected by the detection unit is shorter than a predetermined period of time, the control unit performs control for changing the reception condition such that the reception unit does not receive the touch operation in accordance with at least one of the content of the processing and content displayed on the display screen.
Continuous film and camera and method thereof
A method for continuous wireless transmission of image data through radio waves to an outside picture processing device and continuous capture of images on frames of camera film rolls, said method comprising the steps of providing a camera body, providing an image radio wave converter, providing a radio wave transmission attachment mounted on said camera body for transmitting image data though radio waves to outside picture processing device, providing a camera lens mounted on said camera body for capturing images on frames of camera film rolls, providing a plurality of housing compartments for receiving camera film rolls, and providing a plurality of detachable housing compartment doors operable for simultaneous removal of at least one camera film roll in a non-filming position when images are captured on all frames of the at least one camera film roll, without exposing remaining camera film roll in filming position is provided.
Image forming system and image forming apparatus that make miscellaneous affairs about use of image forming apparatus settle appropriately
Provided is an image forming system that makes operations to various miscellaneous affairs complete appropriately and certainly. Various miscellaneous affairs are settled by the miscellaneous-affairs information screen, which is a miscellaneous-affairs demand request circuit, in MFP, which is an image forming apparatus. The miscellaneous-affairs supporter list is stored in the memory, which is a memory circuit. If the request to another person is needed, a miscellaneous-affairs demand request is performed to a client terminal of a person chosen from the miscellaneous-affairs supporter list. In the case, the response to a miscellaneous-affairs demand request is obtained from the miscellaneous-affairs demand response screen, which is a miscellaneous-affairs demand response circuit of the client terminal.
Method for enabling a wireless device for geographically preferential services
Disclosed is system comprising: a server platform operative to communicate with a wireless communication network; and data storage coupled to the server platform to store a plurality of business rules, wherein the server platform is operative to: generate a first provision instruction to provision a Policy and Charging Rules Function (PCRF) with a first rule set associated with a first set of business rules for wireless usage incurred by a mobile terminal operating in the wireless communication network; generate a first billing instruction based on the first set of business rules and a first data type determined by a packet gateway that inspects packet data communicated to or from the mobile terminal.
System and method for providing high reliability network
A system and method for providing a high reliability network. Context servers store information about calls in a telecommunications system. Network control elements can obtain call information from the context servers to help make call control and reporting decisions.
Server, conference room management method of server, and network conference system
A server connected to a client terminal via a network, includes a conference room management unit that manages a conference room for holding a conference, and a medical image holding unit that holds the predetermined number of medical image data including medical image data linked to the conference, wherein the conference room management unit manages one state which is a conference live state and other states which are different from the one state as a conference room state.
Apparatus and method for routing an incoming call
An apparatus and method for routing an incoming call includes the apparatus configured to perform a routing decision resulting in the incoming call being routed to the voicemail of a called user. The apparatus further creates a transcription of a voicemail message being recorded on the voicemail of the called user. This is done by applying a speech analysis process to the voicemail message as the voicemail message is being recorded. Information about a context of the incoming call is determined from the transcription and a second routing decision is performed based on the information.
Systems and methods for routing a contact to an agent in a contact center
Techniques for handling contacts and agents in a contact center system are disclosed. In one particular embodiment, the techniques may be realized as a method for handling contacts and agents in a contact center system including determining a first caller grade for a first call, determining a first agent grade for a first agent, and matching the first caller and the first agent based on a comparison of the first caller grade with the first agent grade.
Call center call-back push notifications
A method for creating a push notification at a call center includes: receiving a call from a caller device; receiving, from the caller device, caller identification information; receiving, from the caller device, an inquiry; generating an encrypted token including the caller identification information and the inquiry; and when an agent is available, sending a push notification to the caller device for connecting the caller to the agent, the push notification being associated with the encrypted token, and wherein the agent uses the caller identification information from the encrypted token when the agent is addressing the inquiry.
Computer-implemented system and method for simultaneously processing multiple call sessions
A computer-implemented system and method for simultaneously processing multiple call sessions is provided. Multiple call sessions assigned to an agent are monitored. Content of each call session is displayed to the agent on an agent console. A script selected by the agent is identified and provided as synthesized speech to a caller of one of the call sessions. A verbal conversation between the agent and a caller of another one of the call sessions is simultaneously monitored while the script is provided to the caller.
Interactive voice response interface for webpage navigation
Inbound call screening for particular accounts
A system and method for improving the handling, management, and retention of particular accounts. An allowable calling number list is generated via a suitable mechanism such as a call center. The allowable calling number list is utilized by telephone number management server to manage inbound call access to suspended accounts. Account representatives are given access to the suspended numbers. Additionally, certain emergency inbound calls may be permitted from select numbers.
System and method for spoken caller identification in a cellular telephone headset
The subject disclosure describes monitoring when a headset is in communication with a mobile communication device, detecting the headset, comparing a name of a caller and a telephone number of the caller against a list of names and telephone numbers previously stored in a memory, determining that the name of the caller or the telephone number of the caller matches one of the names and telephone numbers in the list, determining that the one of the names and telephone numbers is associated with a pre-recorded message that the user previously recorded and stored in the memory, retrieving the pre-recorded message, and performing a text-to-speech conversion on the name and telephone number of the caller to generate a synthesized speech signal spoken text message and sending the synthesized speech signal and the pre-recorded message to the headset. Other embodiments are disclosed.
Method for terminating an operation of a CPE device, and respective CPE device using the method
The method for terminating an operation of a CPE device, which comprises a front-end component for an xDSL connection of a Central Office Equipment supplying a multitude of customers, comprises the steps of: sending a power loss information to the Central Office Equipment in case of a power loss or a switch-off operation of the CPE device and powering the front-end component for a predetermined time to avoid a termination impedance change of the front-end component, by keeping the supply power up for the front-end component, to keep the termination impedance stable as long as necessary for the Central Office Equipment to avoid introduction of non-cancelled crosstalk, which may arise in xDSL connections of other customers.
Method and apparatus for monitoring a characteristic of an object in mechanical contact with a mobile terminal
An apparatus comprising at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform, actuating within an apparatus a motion in at least one actuation direction, monitoring the motion in the apparatus in at least one monitoring direction, and determining from the monitoring an characteristic of an object in contact with the apparatus.
A smart watch in accordance with an embodiment of the present invention comprises: a first smart member configured to receive a voice signal sent from a mobile terminal, transform the input voice of a user to a voice signal, and send the voice signal to the mobile terminal while in talk mode; and a second smart member configured to input a control command about the talk mode into the first smart member, and transform the voice signal to voice and output the voice.
Notifications regarding interesting or unusual activity detected from an activity monitoring device
A method is provided, including: processing requests from a plurality of users to join a group event, the group event defined for an activity metric for each of the plurality of users for a period of time; analyzing the activity metrics of the plurality of users to determine a ranking of the plurality of users based on their activity metrics, and to identify a change in relationship between activity metrics of two or more of the plurality of users; generating a message, wherein generating the message includes, identifying, based on the identified change in relationship, one or more user accounts of select ones of the plurality of users to receive the message, selecting a message template based on the identified change in relationship, and populating the message template to generate a message describing the change in relationship; sending the message to the one or more user accounts.
Mobile phone and method for outputting kernel message
A mobile phone and a method for outputting a kernel debugging message are provided. The mobile phone comprises an audio jack, a level converter, an audio chip, a multiplexer and a central process unit (CPU). The level converter converts a voltage level of the first kernel debugging message to output a second kernel debugging message. The multiplexer comprises an output port, a first input port and a second input port. The output port is connected to the audio jack. The first input port is connected to the level converter. The second input port is connected to the audio chip. After receiving a debugging message output command, the CPU controls the output port to be electrically connected to the first input port to output the second kernel debugging message to the audio jack according to the debugging message output command.
Modular mobile device case
In preferred embodiments, an expandable and modular protective mobile device case apparatus comprises a protective shell configured to receive a mobile device; a circuit board located within the protective shell said circuit board comprising a USB hub and a mode selection switch, wherein the USB hub is in electrical communication with the mode selection switch; and a male plug member in electrical communication with the mode selection switch and configured to transfer electrical signals from the mode selection switch to the mobile device.
Low radiation wireless communicator
A wireless communicator, including a modem operable to transmit and receive voice communication phone calls, an accelerometer to measure an angle of orientation, and a controller coupled with the modem and with the accelerometer, the controller being operable to restrict operation of the modem when the wireless communicator is not being used in a low radiation listening mode and the accelerometer indicates a substantially stationary angle of orientation longer than a pre-designated length of time.
Portable device maintenance support apparatus, system, and method
A portable device maintenance support apparatus includes one set of terminals configured to connect to a hybrid communication network performed based on any one of a plurality of protocols, by a compound signal in which an analog signal is superimposed with a digital signal including at least device information, the hybrid communication network being performed between the portable device maintenance support apparatus and a field device, the one set of terminals being common to the plurality of protocols.
Common interface communicating with multiple back-end services via gateway application
Systems and methods are disclosed for providing a common interface for communicating with multiple back-end services via a gateway application. In an example embodiment, a gateway application receives a first web service request and a second web service request. The first and second web service requests are generated by interactions with a graphical interface provided by the gateway application. The graphical interface can access a first service and a second service using different authentication protocols. The gateway application can respond to the first and second web service requests by executing a first function provided by the first service and a second function provided by the second service. Executing the first and second functions includes transmitting respective first and second service requests to the first and second services that are respective signed using a first authentication protocol for the first service and a second authentication protocol for the second service.
Computer implemented event-centric social networking platform
A computer-implemented event-centric social networking platform and a method for implementing the event-centric social networking platform have been disclosed. The platform creates shared experiences, primarily amongst friends local to a particular region. The platform includes a first repository, a second repository and a third repository. The platform includes an analytic engine for analyzing users' behavioral information and identify corresponding behavioral patterns. The platform includes a recommendation module configured to generate a plurality of recommendations corresponding to the catalog offerings based on user behavioral patterns, user interests related information and user preference information. The platform further includes an event planning module for enabling the users of the platform to organize/plan events around the available catalog offerings, and invite their respective friends, other users, shortlisted based on pre-defined criteria, to be a part of the planned event and share comments, images, and social media related to the event with their friends.
Systems for learning user preferences and generating recommendations to make settings at connected vehicles and interfacing with cloud systems
A cloud system that includes one or more servers for communicating with vehicles and processing information received from a vehicle and processing information sent to the vehicle is provided. The system enables establishing a communication link between a computing device associated with the vehicle and a server of the cloud system. The communication link is over a wireless network, and the communication link is established in association with a user account that is managed by the cloud system. The communication link is configured to be established for one or more sessions. Then, receiving, at the server, a plurality of actions associated with inputs made at the vehicle while the vehicle is associated with the user account, the plurality of actions being received during the one or more sessions. The server updates data associated with the user account to identify the plurality of actions at the vehicle and then generates a recommendation to apply a setting at the vehicle. One or more of the plurality of actions for the vehicle made during the one or more sessions are analyzed to identify a pattern that is indicative of a preference for a setting by a user of the vehicle that used the vehicle via the user account. Generating the recommendation to apply the setting occurs upon reaching or exceeding a predefined threshold. The system sends to the user account the recommendation to apply the setting for the vehicle. The computing device enables access to the user account to view and accept the recommendation. The computing device associated with the vehicle enables acceptance of the recommendation, such that acceptance of the recommendations causes an instruction to the vehicle to apply the setting.
Systems and methods for performing memory management in a distributed environment
Systems and methods for performing memory management among a plurality of devices in a network are described. In one implementation, the method for performing memory management comprises obtaining memory requirements for execution of an application. The memory requirements indicate memory space needed for executing the application. Further, the method comprises creating at least one memory pool, based on the memory requirements, by aggregating physical memories of the plurality of devices. Further, the method comprises executing the application in the at least one memory pool using semaphores and a mutex application programming interface (API).
An enhanced tag management system is disclosed comprising a networked resource/asset prefetch feature. In some examples, the tag management system comprises a recommendation system, a collection system, a non-volatile data store, a user computing device with cache memory, and/or other components. The enhanced tag management system permits prefetching of resource/assets, such as images, videos, widgets, etc., while avoiding the skewing of analytical results. As a result, a user computing device may enjoy enhanced performance and reduced latency without sacrificing the reliability of collected analytics data.
Dynamic playlist for mobile computing device
A method of managing electronic media items includes accessing first geographic information that indicates a first geographic location of a first device; accessing second geographic information that indicates a second geographic location of a second device; determining whether the first device and the second device are within a defined geographic proximity based on the first geographic location and the second geographic location; if the determination indicates that the first device and the second device are within the defined geographic proximity, generating at least one playlist of media items based on a set of media preferences shared between a first user of the first device and a second user of the second device; and sending the playlist to the first device such that the first user is able to select one or more of the media items on the playlist to be output by the first device.
Managing web services using a reverse proxy
Method, system, and computer program product to manage traffic in a web services cluster using a programmable reverse proxy, by providing the reverse proxy in the cluster, the cluster hosting web services, defining, in a routing table in the reverse proxy, stacks and a weight for each stack, each stack including at least one version of a web service, receiving, at the reverse proxy, a URL requesting to access a web service, selecting one of a first stack and a second stack based on the weights of each stack, the first stack specifying a first version of the web service, the second stack specifying a second version of the web service, each of the first stack and the second stack selected at least once in a plurality of requests, and generating, at the reverse proxy, a URL directed to the version of the web service specified by the selected stack.
Adaptive bitrate management on progressive download with indexed media files
A method includes receiving streaming media data having an original media frame and an original frame index referencing the original media frame; determining an optimal session bitrate, wherein the optimal session bitrate is based on the available network bandwidth between a server and a terminal; allocating a frame budget for an output media frame by estimating a frame size of the output media frame based on the original frame index and the optimal session bitrate; generating the output media frame by processing the original media frame based on first encoding parameters and, if the allocated frame budget is greater than a frame size of the processed media frame, padding the processed media frame; and providing the output media frame.
Methods and apparatus for improved navigation of content including a representation of streaming data
Methods, apparatuses, and computer program products are herein provided for improved navigation of content with streaming media. A method may include causing presentation of a document with at least one representation of streaming media on a display and causing presentation of a media download indicator on the display that provides an indication of download progress of the representation of streaming media. The method may further include causing presentation of content that does not include the representation of streaming media while causing the media download indicator to remain presented and then receiving an indication that a user desires to view the representation of streaming media. The method may further include causing, in response to the indication, presentation of a portion of the document that includes the representation of the streaming media on the display. Corresponding apparatuses and computer program products are also provided.
Social sharing of contacts information
Sharing contact information among one or more communities or individuals in a social media environment, in one aspect, may comprise creating contact information associated with contact as social media content based on input from a first user. At least a portion of the contact information may be shared with a plurality of second users via a social media like application.
Bridging physical and virtual spaces
Examples of systems and methods for bridging virtual and physical spaces are described. In some of these examples, a particular communicant's real world state drives changes in one or more of the communications connections, virtual state, and communications interface of the particular communicant or another communicant.
Adaptive multimedia delivery via a broadband gateway
Aspects of a method and system for adaptive multimedia delivery via a broadband gateway are provided. A broadband gateway may be operable to determine which one or more of a plurality of devices is communicatively coupled to the broadband gateway. Content may be requested from, and/or scheduled to be delivered to, one or more of the devices. The gateway may be operable to select a provider from which to request the content based on results of the determining. The provider may be selected based on a bandwidth of a link between the broadband gateway and the one or more devices to which the content is to be delivered. The gateway may be operable to select one of a plurality of versions of the content based on results of the determining and requesting the selected version of the content from the selected content provider.
Security policy enforcement
A method of operating a network message interceptor for enforcing a security policy for communication over a network between first and second network endpoints, the interceptor being in communication with the network and external to the first and second endpoints, the network including transport layer security, and the security policy identifying at least one valid security standards for communication over the network, the method comprising the steps of: intercepting a handshake message transmitted over the network between the first and second endpoints; extracting from the handshake message an identification of a security standard selected for the communication between the first and second endpoints; determining a validity status of the identified security standard based on the security policy; and preventing communication between the first and second endpoints based on a negatively determined validity status of the identified security standard.
Techniques for reconciling permission usage with security policy for policy optimization and monitoring continuous compliance
In one aspect, a method for managing a security policy having multiple policy items includes the steps of: (a) mapping permissions to the policy items which apply to usage of the permissions so as to determine which of the permissions are granted to groups of users by each of the policy items; (b) identifying at least one of the policy items mapped in step (a) that is in violation of least privilege based on a comparison of an actual permission usage with the security policy; (c) identifying at least one of the policy items mapped in step (a) that increases operational risk; (d) verifying that policy constructs in the security policy are consistent with policy constructs inferred from the actual permission usage; and (e) identifying optimizations of the security policy based on output from one or more of steps (a)-(d).
Methods and apparatus for providing or receiving data connectivity
Methods and apparatus for providing or receiving data connectivity with an access network may include receiving or transmitting a request from a wireless device for data connectivity to a destination. The destination may be associated with use of an application. The methods and apparatus may further include determining whether the destination is a sponsored destination. The methods and apparatus may further include providing or receiving sponsored data connectivity via the access network from the wireless device to the sponsored destination for use of the application on the wireless device if the destination is a sponsored destination.
Systems and methods for transparently monitoring network traffic for denial of service attacks
A mitigation service can monitor network traffic in one direction between a client computer and a server computer. The mitigation service can receive a request from a client computer to establish a network connection with a server computer. The mitigation service can reply to the client computer with an acknowledgment that is configured to cause the client computer to issue a request to reset the connection. The acknowledgement is configured not to affect the establishment of the network connection with the server computer. The mitigation service can compare the details of the reset request with the request to establish the network connection. If the details match, the mitigation service can forward the request to establish the network connection to the server computer.
Potential attack detection based on dummy network traffic
A method, apparatus and product for potential attack detection based on dummy network traffic. One embodiment includes a method comprising analyzing an activity, wherein the activity is performed in response to a message, wherein the message is transmitted by a first application that is executed by a computing device, wherein the computing device is connected to a computerized network, wherein the first application is configured to transmit the message in order to induce a potential attacker to perform a malicious activity, wherein said analyzing comprises comparing the activity to a predetermined expected activity in response to the message; and determining, based on the analysis of the activity, that a second application is under a potential attack; whereby an operation of the first application is capable of exposing potential attacks on the second application without monitoring network traffic of the second application.
Methods and apparatus for reducing the effectiveness of chosen location attacks in a peer-to-peer overlay network
Methods and apparatus for reducing the effectiveness of chosen location attacks in a peer-to-peer overlay network. A method includes determining that new node identifiers are to be generated for a plurality of nodes in the network, inputting parameters to a hash function to generate a selected node identifier, and adopting a location in the network associated with the selected node identifier. Another method includes receiving a node identifier associated with a selected node, inputting parameters associated with the selected node to a hash function to generate a corresponding node identifier, comparing the node identifier with the corresponding node identifier, and determining that the selected node is a potential attacker if the node identifiers do not match. Another method includes detecting responsibility for initiating an update to one or more node identifiers, generating parameters to generate the node identifiers, and transmitting the parameters on the network.
Utilizing routing for secure transactions
The present disclosure relates to methodologies, networks, and nodes for providing secure transaction routing among network components. Network transactions (messages) may be intentionally routed though networks using different paths where the act of following the particular node paths or traversing particular nodes provides a security enhancing feature for the messages. A transaction receiving node will examine the paths taken from a sending node to determine if the paths correspond to predetermined paths to verify the authenticity of the transaction. In some embodiments, predetermined paths may change in a predetermined sequence where the sequence itself becomes a portion of the security feature.
Shared secret techniques for ubiquitous computing devices
Technologies and implementations for secure access to online services are generally disclosed.
Anonymous subject identification system
A computerized method and apparatus are established to identify a subject of common interest among multiple parties without releasing the true identity of any subject. Furthermore, a computerized network provides different parties at different locations with a mechanism to conduct cooperative activities concerning such a subject of common interest without exposing that subject to possible identity theft.
Identity verification via selection of sensible output from recorded digital data
A digital data sampler operating in a computer processor selects and stores digital data samples from a data stream used for generating audio-visual output during a session with a client operated by a user. The session generates the data stream independently of the data sampler. The data sampler may collect parameter data correlated to a probability will be remembered by the user at some future time, for each sample. The data sampler may store the data samples and parameter data as shared secret data for use in a future authentication session. During a future authentication session, an authentication device selects test data from the shared secret data to generate sensible output in an authentication process. The authentication process grants access to a controlled resource in response to user input indicating specific knowledge of the shared secret data selected from a presentation of similar sensible outputs.
Authenticating cloud services
The disclosed embodiments provide a system that facilitates authenticating cloud services that execute in an untrusted cloud computing environment. During operation, a verifying party receives a request for a credential from a compute instance that is executing in the untrusted cloud computing environment. This request includes one or more metadata parameters that are associated with the compute instance. The verifying party queries a management interface for the untrusted cloud computing environment to retrieve a second set of metadata parameters for the compute instance, and then compares the two sets of parameters. If the values for the two sets of parameters match, the verifying party grants the credential to the requesting compute instance. Otherwise, the verifying party denies the request.
System and method to anonymize data transmitted to a destination computing device
A method and system for anonymizing data to be transmitted to a destination computing device is disclosed. Anonymization strategy for data anonymization is provided. Data to be transmitted is received from a user computer, the data including a plurality of characters, with at least one character case sensitive. A case information word indicative of the case of the characters is created. The characters in the data is converted to a known case. Selective anonymization of the converted data is performed, based on a selected anonymization strategy, using an anonymization module. The anonymized data with the case information word and data indicative of the selected anonymization strategy is transmitted to the destination computing device over a network.
Externally controlled reachability in virtual private networks
A network that supports VPNs is enhanced to allow users in one VPN to communicate with users in another VPN in the course of executing a predefined application, such as VoIP. This capability is achieved dynamically by enabling a device that can communicate with the network elements that operate to normally prohibit inter-VPN communication to direct those network elements to enable such communication, at least for the purposes of specific applications.
Software firewall control
A software firewall that may be configured using rules specified for types of network interfaces rather than individual network interfaces. The network types may be specified with type identifiers that have a readily understandable meaning to a user, facilitating ease of configuring the firewall. The network types could include, for example, wired, wireless and remote access. A rule specified based on a network type can be implemented for network interfaces of that network type. The implementation may be performed automatically and may be updated based on network location awareness information.
Load balancing among a cluster of firewall security devices
A method for balancing load among firewall security devices in a network is disclosed. According to one embodiment, a switch causes firewall security devices (FSDs) of a cluster to enter into a load balancing mode. Responsive to receiving a heartbeat signal from an FSD, information regarding the FSD and the port on which the heartbeat signal was received are added to a table maintained by the switch that maps outputs of a load balancing function to ports of the switch. A received packet is forwarded to an FSD of the cluster by: (i) extracting a configurable number of bit values from a configurable set of bit positions within the packet; (ii) determining the output of the load balancing function; (iii) identifying the port to which the FSD is coupled based on the output and the table; and (iv) transmitting the packet to the FSD via the identified port.
Communication system and method
A communication system and method are provided. In the communication system, a first electrical device has an end point which is configured to connect to a plurality of 3G dongles, wherein the 3G dongles have different IP addresses; a cloud server integrates the IP addresses to generate an integrated IP address when the cloud server detects that the first electrical device is connected to the 3G dongles; and a second electrical device transmits data packets with the first electrical device via the integrated IP address through the cloud server.
Access restriction device, access restriction method, computer readable storage medium
An access restriction device including a processor; and a memory. The processor executes: receiving an email from a transmission source; specifying including analyzing, when a file is attached to the email, information in the file, and specifying a character string from the file; executing including specifying, from a storing unit in which a character string is associated with an access restriction process, an access restriction process that is associated with the character string specified at the specifying the character string, and executing the specified access restriction process on the file; and sending including attaching, instead of the file attached to the email, the file that has been subjected to the access restriction process at the executing to the email, and sending the email to which the file subjected to the access restriction process is attached to a transmission destination of the email.
Group messaging for facilitating interactions between users
A group messaging relationship establishment method is provided. The method includes determining, by a web server, whether a number of comments relating to information exceeds a predetermined first numerical threshold within a predefined first time period, in response to the number of comments relating to the information exceeding the predetermined first numerical threshold within the predefined first time period, establishing a corresponding instant messaging group relating to the information, and recording a unique identifier information for the instant messaging group relating to the information.
Methods, systems, and computer program products for clustering and communicating between internet protocol multimedia subsystem (IMS) entities and for supporting database access in an IMS network environment
Methods, systems, and computer program products for clustering and communicating between Internet protocol multimedia subsystem (IMS) entities and for supporting database access in an IMS network environment. According to one aspect, an IMS cluster node includes a serving call state control function (S-CSCF) for controlling media sessions between IMS users. The cluster node further includes a home subscriber service (HSS) function for storing and providing IMS subscription information to the S-CSCF function. A shared memory is operatively associated with the S-CSCF function and the HSS function. The S-CSCF function obtains IMS subscription information from the HSS function via the shared memory.
Preserving collaboration history with relevant contextual information
Preserving collaborative history includes detecting a trigger for a chat session between at least two participants using a processor and, responsive to the trigger, obtaining event data for an event occurring during the chat session and involving at least one of the participants. The event data is included within a transcript of the chat session. In other cases, event data is obtained from external systems that is correlated with the chat session and is included within the transcript.
Adaptive infrastructure for distributed virtual switch
In one embodiment, a method includes identifying at a network device, characteristics of a distributed virtual switch comprising a control plane component and a plurality of data plane components, grouping the data plane components, and adapting operation of the distributed virtual switch for one or more groups of the data plane components based on the characteristics. An apparatus and logic are also disclosed herein.
Verifying the functionality of an integrated circuit
Verifying the functionality of an integrated circuit, the integrated circuit being operable for processing a data packet thereby generating a data processing result. A data packet to be processed is evaluated to determine if the data packet is an erroneous data packet. If the data packet is identified as an erroneous data packet, a modified data packet is generated by modifying the erroneous data packet and providing the modified data packet to the integrated circuit. A determination is made as to whether the data processing result comprises the modification; and a malfunction of the integrated circuit is signaled, if the data processing result comprises the modification.
GID capable switching in an infiniband fabric
Methods, systems, and apparatus for extending the size of Infiniband subnets using GID switching in an Infiniband fabric. An Infiniband subnet is defined to include multiple local identifier (LID) domains, each including multiple nodes interconnected via one or more LID switches. In turn, the LID domains are interconnected via one or more GID switches. Messages may be transferred between nodes in a given LID domain using LID switches in the domain. Messages may be transferred between nodes in separate LID domains by routing the messages via one or more GID switches. In various embodiments, GID switches may be implemented to also operate as LID switches and perform routing based on selected packet header fields.
Dynamically expanding computing resources in a networked computing environment
Embodiments of the present invention provide an approach for dynamically expanding cloud capacity (e.g., computing resources), based on infrastructure needs. In a typical embodiment, an available capacity of a set (e.g., at least one) of computing resources in the networked computing environment will be determined. Then, a future capacity needed for processing a set of workloads in the networked computing environment will be forecasted. Such a forecast can be made based on multiple factors/approaches. For example, the forecast can be made based upon at least one of the following: an average consumption of the set of computing resources over a predetermined period of time, a periodic estimation of consumption of the set of computing resources, a scheduled consumption of the set of computing resources, and/or a potential capacity of the set of computing resources. In general, the scheduled consumption can be determined based on at least one resource consumption schedule stored in a computer data structure, while the potential capacity can be determined based upon a set of application events associated with the set of workloads. Regardless of the approach utilized, once the future capacity has been forecasted, it will be determined whether the future capacity exceeds the available capacity. If so, the available capacity of the set of computing resources will be expanded (e.g., hardware and/or software elements will be added to the networked computing infrastructure and/or made available) until the available capacity at least meets the future capacity.
Hierarchical network, service and application function virtual machine partitioning across differentially sensitive data centers
Methods, systems, and computer program products for hierarchical DCS-aware network, service, and application function VM partitioning are provided herein. A method includes partitioning multiple functions, within a set of virtual machines distributed across a hierarchical network of two or more data centers, into a first set of functions and a second set of functions, wherein the first set is associated with a higher performance sensitivity measure than the second set, and wherein said partitioning is based on a desired performance sensitivity measure associated with the functions and data center sensitivity measures of the data centers; executing the first set of functions in a first data center associated with a higher data center sensitivity measure than the one or more additional data centers; and executing the second set of functions in a second data center associated with a lower data center sensitivity measure than the first data center.
Methods for selection of link aggregation capable access points
A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus includes a processor configured to identify at least one interface (e.g., AP interface) configured to support link aggregation, identify one or more groups of the at least one interface, wherein all interfaces of a respective group are configured to be aggregated together, identify supported link aggregation types per group, select one of the groups to support communication via link aggregation, select at least one interface of the selected group, and send information to the selected at least one interface to initialize link aggregation.
Server-centric high performance network architecture for modular data centers
Disclosed are systems and methods for network architecture that is a server-centric network architectural design.
Signal combining apparatus
The present application relates to a signal combining apparatus having an input for receiving a signal from a signal generator and an output for outputting a signal to a signal analyzer. The input signal is split into a plurality of identical signals by a splitter and the signals are transmitted, to inputs a plurality of duplex combiners, each of which has an input/output port to which a device under test can be connected. Outputs of the duplex combiners are connected to a plurality of receive paths, whose outputs are connected to a signal relay which is operative to receive one or more signals received through the receive paths. An output of the signal relay is connected to the output of the signal combining apparatus, such that a composite signal output by the signal relay containing the signals received through the receive paths can be analyzed by the signal analyzer.
Network resource monitoring and measurement system and method
A method and system for analysing and measuring multiple sources of data over a communications network (18) so as to ascertain information or usage of one or more resources, such as resource servers (2). A data collection and processing means (20) collects and processes the data sources which are forwarded to a reporting server (34) as a combined data source made available to interested parties.
Clusterhead selection in a communication network
Technologies are generally described for clusterhead selection in a communication network. In an example, a first node may be configured to send a first responsibility and availability. In some examples, the first responsibility indicates a responsibility attributed to the second node to be the clusterhead for the first node. In some examples, the first availability indicates an availability of the first node to be the clusterhead for the second node. In some examples, the first node is effective to receive a second responsibility and availability; the second responsibility indicating a responsibility attributed to the first node to be the clusterhead for a second node; the second availability indicating an availability of the second node to be the clusterhead for the first node. In some examples, the first node is effective to determine the clusterhead based on the first and second responsibility and the first and second availability.
Application control of embedded web content execution
Web content is displayed concurrently with application content of an application that is hosting the web content. The web content includes at least some content that can be executed or run, such as a script. Performance of the web content is monitored, such as by monitoring the amount of time the web content has been executing and/or an amount of memory used by the web content. Feedback regarding the performance of the web content is provided to the application hosting the web content, and the application can determine whether and/or how to alter execution of the web content based on the performance of the web content. Execution of the web content can be altered in various manners, such as by throttling execution of the web content or ceasing execution of the web content.
Applying policies to subnets
Associations are maintained among a plurality of subnets, policies, and client types. Each subnet has an associated client type and policy. For a particular client device, (i) a client type of the particular client device, and (ii) a client type associated with the subnet on which the particular client device is hosted is determined. For the particular client device, (i) the determined client type of the particular client device with (ii) the determined client type associated with the subnet on which the particular client device is hosted is compared. Responsive to a determination that the client type of the particular client device matches the client type associated with the subnet that hosts the particular client device, a policy is applied to the particular client device.
System and method for managing virtual and dedicated servers
Some embodiments provide a hosting system for managing virtual and dedicated servers. The system includes a front-end user interface (UI) that allows users to configure, provision, and control virtual and dedicated servers through UI elements. The back-end system includes different actuators that perform different tasks related to the virtual and dedicated server. To interface with these different actuators, the hosting system includes a remote management component (1) that receives a user request from the front-end UI, (2) identifies an actuator that can fulfill the user request, and (3) sends the user request to the identified actuator.
System and method for NAS server test load generation
System and method embodiments are provided herein to test Network Attached Storage (NAS) server performance by generating a sufficient load in NAS client sessions. A test device is configured to run as many needed NAS clients to generate enough NAS session load for evaluating the NAS server performance. An embodiment comprises a method for testing a NAS server comprising starting a NAS client, establishing a session between the NAS client and the NAS server, exchanging communications for the session at a network stack layer below the NAS client, terminating the NAS client, starting a second NAS client, establishing a subsequent session between the second NAS client and the NAS server, exchanging communications for the subsequent session at the network stack layer while exchanging communications for the session, and terminating the second NAS client.
Network design device
According to the information about a request bandwidth of a path newly requested between a starting site and an ending site of the requested path and the information about the type of a device candidate which may be provided at each site and the number of ports of each device, an objective function indicating a device cost and a constraint to be considered when the objective function is minimized are set. According to the arithmetic performance of a solver for executing the design, a problem scale corresponding to one path accommodation designing operation is set. Based on the set problem scale, a mathematical programming problem for minimizing the objective function is generated. An accommodation designing process is repeated on a plurality of paths until a solution to the mathematical programming problem is obtained by the solver, and all requested paths are completely designed.
Automatic network discovery in precision time protocol networks
Aspects of the present invention provide systems and methods using precise timing relationships between nodes in computer networks to generate mappings depicting the physical arrangement or ordering of nodes in the computer networks. The technical effect is by tracking the timing delays between nodes as observed by an individual node, and collecting such information together for subsequent processing, nodes may receive and/or construct an entire physical network topology using an algorithm accordingly.
Summarization in a multi-domain network
A multi-domain network comprises domains of different network technology types. A network domain comprises a plurality of network nodes connected by links and comprising border nodes which connect with other network domains. In a first domain (AS A) of a first technology type, a method comprises determining an intra-domain topology of the nodes and links of the domain by collecting values of at least one network topology parameter of the first technology type. The method determines a summarized intra-domain topology of paths between border nodes of the domain which is described using values of at least one summarized network topology parameter. Values of the summarized network topology parameter are derived from the values of the network topology parameter of the intra-domain topology of the first technology type. The summarized network topology parameter is part of a common set of network topology parameters for advertising between domains comprising apparatus of different technology types. A domain can comprise multiple layers of different technology type.
Mechanism for facilitating spin mode-based dynamic updating of application servers in an on-demand services environment
In accordance with embodiments, there are provided mechanisms and methods for facilitating spin mode-based dynamic updating of application servers in an on-demand services environment. In one embodiment and by way of example, a method includes upgrading a first set of application servers of a plurality of application servers at one or more computing devices, holding a first set of requests received at the first set of application servers from being processed while the first set of application servers is being upgraded, and upgrading a second set of application servers of the plurality of application servers upon completion of the first set of application servers. The method may further include holding a second set of requests received at the second set of application servers from being processed while the second set of application servers is being upgraded, and resuming processing of the first set of requests at the upgraded first set of application servers.
Adding device-wide capabilities and parameters to split-architecture devices
A network element and process determines and configures capabilities of network element components. The network element components include a set of control elements where the set of control elements determine capabilities of each of a set of forwarding elements. The method includes initiating communication with a forwarding element in the set of forwarding elements by a control element. The control element requests that the forwarding element to provide a set of logical function block identifiers of supported logical function blocks for the forwarding element. The set of logical function block identifiers is then received from the forwarding element in response to the request. The set of logical function block identifiers are matched with known forwarding element capabilities to determine capabilities of the forwarding element. A forwarding element capability model is then updated with the capabilities of the forwarding element.
Method and system for down-converting and electromagnetic signal
Methods for down converting a modulated carrier signal to a demodulated baseband signal are described herein. The method requires that a first portion of energy is transferred from the modulated carrier signal, and stored at a first storage device when a first switch is on. At least some of the energy stored in the first storage device is discharged when the first switch is off. The method further comprises transferring a second portion of energy from the modulated carrier signal, storing at a second storage device the second portion of transferred energy when a second switch is on, and discharging at least some of the energy stored in the second storage device when the second switch is off. A down-converted in-phase baseband signal portion is generated from the energy accumulated in the first storage device while both the charging and the discharging occurs, and a down-converted inverted in-phase baseband signal portion is generated from the energy accumulated in the second storage device while both the charging and the discharging occurs, and the two portions are combined with a first differential amplifier circuit to form a down-converted differential in-phase baseband signal.
Predistortion circuit and method for predistorting a signal
A predistortion circuit for countering interference affecting a digital signal during transmission over a transmission link comprises a path of the digital signal between a mapper at a transmitter side and a demapper at a receiver side. The predistortion circuit is arranged for receiving a version of a digital symbol selected from a predefined constellation used for mapping a bit stream, and includes at least one correction stage provided with a correction path arranged for determining a correction term as a function of the output of a model equivalent to the transmission link and a corresponding symbol of a target constellation. The position of the target constellation points is determined using a measure accounting for the transmission link. The predistortion circuit is arranged for adding the correction term to the received version of the digital symbol and outputting the result of adding as an updated version of the digital symbol.
Interference cancellation scheme using constellation diagram
Provided is an interference cancellation method by a User Equipment (UE) in a cellular communication system. The method includes receiving a signal including a desired signal and an interference signal from at least one base station; determining a universal constellation diagram based on at least one of a transmission parameter of the desired signal and a transmission parameter of the interference signal; blindly detecting an additional transmission parameter of the interference signal using the determined universal constellation diagram; and cancelling the interference signal from the received signal using the detected additional transmission parameter.
Enabling phase tracking for a communication device
A communication device for enabling phase tracking is described. The communication device includes a processor and instructions stored in memory. The communication device generates a plurality of pilot symbols. The pilot symbols conform to a rank-deficient pilot mapping matrix. The communication device also transmits the plurality of pilot symbols.
Adaptive channel prediction and mitigating interference in OFDM systems
One embodiment provides an apparatus. The apparatus includes an optimization module configured to determine a guard interval remainder based, at least in part on a comparison of an allowable microreflection interference level and an actual microreflection interference level; and a windowing module configured to window an OFDM (orthogonal frequency division multiplexed) symbol utilizing the guard interval remainder. The apparatus may further include a channel estimator module configured to determine a predicted channel frequency response based, at least in part, on a probing symbol; and a pre-equalizer module configured to pre-equalize the OFDM symbol based, at least in part, on the predicted channel frequency response.
Data receiver circuit and method of adaptively controlling equalization coefficients using the same
Provided are a data receiver circuit and a method of adaptively controlling an equalization coefficient using the same. The data receiver circuit includes n sampling receivers, n decision feedback equalizer (DFE) circuits, and a data recovery circuit. The n sampling receivers are configured to sample an input signal and output n respective sampling signals in response to n respective clock signals. The n DFE circuits are configured to equalize the n respective sampling signals in response to a DFE control signal and generate n respective pre-recovery signals in response to the n equalized sampling signals and n respective previous pre-recovery signals, the DFE control signal for changing an equalization ability of the n DFE circuits. The data recovery circuit is configured to select one of the n respective pre-recovery signals, and output the selected n pre-recovery signal as a recovered input signal.
Soft decision assisted equalizer adaptation
A data processing system includes an equalizer circuit operable to equalize digital data according to tap coefficients to yield equalized data, a tap coefficient adaptation circuit operable to adapt the tap coefficients based at least in part on a scaled error signal, a data detector operable to apply a data detection algorithm to the digital data to generate hard decisions and soft decisions, an error calculation circuit operable to calculate an error signal based on the equalized data and on the hard decisions, and a scaling circuit operable to scale the error signal based on the soft decisions to yield the scaled error signal.
Circuits for efficient detection of vector signaling codes for chip-to-chip communication using sums of differences
In a detection circuit, inputs correspond to received indications of vector signaling code words received by a first integrated circuit from a second integrated circuit. With four inputs, the circuit compares a first pair to obtain a first difference result and compares a second pair, disjoint from the first pair, to obtain a second difference result. The first and second difference results are then summed to form an output function. A system might use a plurality of such detection circuits to arrive at an input word. The circuit can include amplification, equalization, and input selection with efficient code word detection. The vector signaling code can be a Hadamard matrix code encoding for three input bits. The circuit might also have frequency-dependent gain, a selection function that directs one of the summation function result or the first difference result to the output function, variable gain, and/or a slicer.
Connecting unmanaged segmented networks by managing interconnection switching elements
Some embodiments provide a novel network control system for interconnecting several separate networks. The system includes a set of interconnection switching elements. Each interconnection switching element in the set is for connecting one of the separate networks to a common interconnecting network. The system includes a set of network controllers for managing the interconnection switching elements in order for the interconnection switching elements to send packets from a first machine at a first one of the networks to a second machine at a second one of the networks.
Updating of presence data allocated to the user of a communication service
Data characterizing the presence state of a user registered to use a communication service is sent to a server for the management of presence data in order to update presence data allocated to the user of a communication service. The data sent to the server is stored as presence data allocated to the user and is made available for predefinable other users. Authorization to change presence data is given to another selected user upon user release.
Method for transmitting contents in a smart home environment
When a user wants to move or share the contents, information on network status, a position of a terminal, and a property of the terminal is collected and displayed intuitively to the user. Then, quality of the contents is adjusted in accordance with selection of the user adaptively. The contents can be displayed through the selected terminal with adaptively adjusted quality based on the information on network status, the position of a terminal, and the property of the selected terminal.
Method and apparatus for assessing quality of video stream
Objective video quality assessment models at media-layer or at packet-layer are known for estimating audio/video quality of experience. Existing models are not able to provide stable performance. A method for enabling quality assessment of a stream of frames of video data comprises receiving a sequence of packets, generating a set of parameters and inserting said generated set of parameters as side information into said stream of frames, wherein at least one parameter refers to a video slice level. A method for assessing the quality of a stream of frames of video data comprises receiving a sequence of packets, extracting a set of parameters from said sequence of packets and generating an estimated mean opinion score, wherein the video data comprise a slice level and wherein the extracted set of parameters comprises at least one parameter that refers to a video slice level.
Method and apparatus for transmitting multimedia broadcast data in wireless communication system
A base station and method are provided for transmitting data of a multimedia broadcast multicast service (MBMS) by the base station in a wireless communication system. The method includes receiving one or more service data units (SDUs) from a core network node; receiving a control message including respective length information of the SDUs transmitted from the core network node; identifying one or more subframes impacted by a loss of two or more consecutive SDUs based on the length information if the two or more consecutive SDUs are not received; and muting the identified one or more subframes impacted by the loss of the two or more consecutive SDUs.
Dynamic multicast mode selection in a communication network
In one embodiment, a network device selectively operates according to a sparse multicast mode where the network device stores individual devices interested in one or more multicast groups and distributes corresponding multicast group traffic based on the individual devices. Alternatively, the network device selectively operates according to a dense multicast mode where the network device maintains a list of the one or more multicast groups in which at least one device is interested and distributes corresponding multicast group traffic through broadcasting. By determining one or more resource-related characteristics, the network device may then select between operation in the sparse multicast mode and the dense multicast mode based on the resource-related characteristics.
Unified storage and management of cryptographic keys and certificates
Cryptographic resources, such as those including PGP keys and certificates, are transformed such that they are understood by certificate repositories, such as in a format understood by the JAVA tools of JAVA KEYSTORE (JKS). JAVA is one example of a general-purpose computer programming language that is concurrent, class-based, object-oriented. JAVA KEYSTORE is one example of a repository of security certificates, such as authorization certificates and public key certificates, used for instance in SSL encryption. The transformation of the cryptographic resources is completed such that the necessary metadata for retrieving the original cryptographic resources, or artifacts thereof, are retained. In that way, cryptographic resources are effectively hidden within the certificate repository until needed. The security program applies an algorithm to generate keys for JKS storage such that the keys “masquerade” in a JKS canonical format until the time in which the resources are needed to be in a PGP canonical format.
Cryptographically linking data and authentication identifiers without explicit storage of linkage
Methods and apparatus are provided for cryptographically linking data identifiers and authentication identifiers without storing the association between the authentication and data secrets in the database of the server. A data secret of a client is provided to a server for storage with an authentication identifier (AuthId) and a pseudo-random client value. The server provides the client with a sequence number of the stored data secret that is associated with a data identifier (DataId) identifying the data secret obtained using a Key Derivation Function and a storage seed. The client registers with the server to obtain the authentication identifier (AuthId). Techniques are also provided for retrieving and updating the data secret.
Spectral and temporal stealthy fiber optic communication using sampling and phase encoding detection systems
A method for providing spectral and temporal stealthy information transmitted over an optical communication channel, according to which, at the transmitting side, the power spectral density of a pulse sequence bearing the information is reduced by encrypting the temporal phase of the pulse sequence. The power of the pulse sequence is spread in the frequency domain, to be below the noise level, by sampling the pulse sequence. Spectral phase encoding is used to temporally spread the pulse sequence and to prevent coherent addition of its spectral replicas in frequency domain. The resulting signal, encrypted both in time and frequency domains, is then transmitted. Spectral phase decoding is performed at the receiving side by performing coherent detection and folding all the spectral replicas of the transmitted signal to the baseband by means of sampling. The temporal phase of the signal is decrypted and the information which is delivered by the pulse sequence is decoded.
Method for providing cryptographic key pairs
The invention relates to a method for creating a second asymmetric cryptographic pair of keys, wherein a first private key (G0) together with a first public key (O0) forms a first asymmetric cryptographic pair of keys (K0). Embodiments of the method may comprise the following steps: receiving a user identifier; calculating a second private key (G1), wherein a random value (z) and the user identifier are considered in the calculation; calculating a second public key (O1) from the second private key using an asymmetric cryptographic key creation method, wherein the second private key and the second public key form the second asymmetric cryptographic pair of keys (K1, 206); creating a first cipher (C_G0—O1) by encrypting the first private key (G0) with the second public key (O1); and storing the first cipher (C_G0—O1).
Apparatus and method for performing compression operation in hash algorithm
An apparatus and method for performing a compression operation in a fast message hash algorithm, which receive a 512-bit message and 512-bit chaining variable data, repeatedly calculate a 128-bit register-based step function, and then produce updated 512-bit chaining variable data. For this, the apparatus for performing a compression operation in a hash algorithm includes a message extension unit for receiving a message and generating a plurality of extended messages. A chaining variable initial conversion unit receives chaining variable data and converts the chaining variable data into initial state data. A step function operation unit repeatedly calculates a step function based on the initial state data and the plurality of extended messages and produces final state data. A chaining variable final conversion unit generates updated chaining variable data from the chaining variable data using the final state data, and outputs the updated chaining variable data.
Method for time synchronization in a communications network
A method for time synchronization in a communications network having multiple nodes, wherein the nodes comprise a first node and at least one second node, where the first node generates first cycle counter states according to a reference clock frequency and the second node or nodes each generate second cycle counter states according to an internal clock frequency, where a time synchronization is carried out in sequential synchronization cycles, in which synchronization messages originating from the first node are sequentially transmitted from one node to another node, and a synchronization message transmitted by a node contains information used for time synchronization in the at least one second node receiving the synchronization message such that a time synchronization is performed in a given second node based on an estimation of a first cycle counter state and a compensation factor in combination with a linear quadratic regulator.
Joint retransmission and frame synchronization for error resilience control
A method for controlling error resilience in network communication is described. The method includes: determining, by a receiver-side controller, a packet gap representing a packet loss of a packet being communicated over a network; projecting, by the receiver-side controller, a retransmission time-out for at least one missing packet of the packet loss; issuing, by the receiver-side controller, a retransmission request for the at least one missing packet; if the packet gap is not filled within a first time period of the retransmission time-out, then issuing, by the receiver-side controller, at least one synchronization frame request; and selecting, by a sender-side controller, to respond to at least one of either of the retransmission request or the at least one synchronization frame request and neither of the retransmission request nor the at least one synchronization frame request.
Systems and methods for a communications transfer between internet protocol multimedia services and push to talk services
Systems (200) and methods for a full-duplex call transfer into a half-duplex call. The methods involve: establishing the first full-duplex call between a first communication device (214) and a second communication device (204) already engaged in the half-duplex call with at least one third communication device (206, 208); and communicating a REFER request message (306) from the second communication device to the first communication device. The REFER request message includes contact information for redirecting the first communication device to a hybrid application server and token information useful for patching the full-duplex call into the half-duplex call. In response to the REFER request message, the second communication device performs operations to terminate the first full-duplex call and establish a second full-duplex call with the hybrid application server. Thereafter, the hybrid application server performs operations to patch the second full-duplex call into the half-duplex call using the token information.
Single channel full duplex wireless communication
A single channel full duplex wireless communication system includes a processor, a transmitter, a receiver, a secondary transmission path, a combining element, a primary transmission feedback path and a secondary transmission feedback path. The transmitter transmits a transmission signal via a transmission path. The receiver receives a received signal via a reception path. The transmitter and the receiver utilize one channel to transmit and receive signals. The transmission signal causes self-interference. The processor estimates a first transfer function and feeds the secondary transmission path with the transmission signal adjusted by the first transfer function to reduce the transmission signal leaked to the reception path. The combining element combines the transmission signal with the adjusted secondary transmission path signal to remove the self-interference. The primary transmission feedback path output is modified by a second transfer function. The secondary transmission feedback path output is modified by a third transfer function.
Communication apparatus and communication method
A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without the uplink data according to the information for instructing transmission of reception quality information without uplink data. This allows a mobile station apparatus to transmit reception quality info information including a large amount of information even if there is no uplink data between the mobile station apparatus and the base station apparatus, and the transmission control flexibly responding to the amount of information and the frequency of transmissions of the reception quality information transmitted from the mobile station apparatus is possible.
Single carrier transmission system, communication device, and single carrier transmission method using for them
A memory 21 of a pilot processing circuit 2 holds in advance a pilot sequence converted into a frequency region signal obtained by subjecting a pilot signal symbol transmitted in one block to Ntx_p-point DFT. The pilot sequence held in the memory 21 is subjected to a series of processes including a roll-off filtering by a roll-off filter circuit 22, subcarrier mapping process by subcarrier mapping circuit 23, an Ndft_p-point IDFT operation by an IDFT circuit 24, and a cyclic prefix adding process by a cyclic prefix adding circuit 25.
Method and apparatus for transmitting and receiving control information to randomize inter-cell interference in a mobile communication system
Methods and apparatuses are provided for transmitting and receiving information. A User Equipment (UE) receives information related to a cyclic shift value α transmitted from a Node B. The UE obtains a reference sequence based on a Zadoff-Chu sequence and ejα. The UE transmits the reference sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B. The SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.
Transmission of sounding reference signals in TDD communication systems
A method and apparatus for transmitting and receiving a Sounding Reference Signal (SRS) to a network in a communication system. A bandwidth allocated by the network to transmissions of one or more random access channels is determined. An SRS bandwidth configuration is reconfigured by setting a maximum bandwidth value of the SRS bandwidth configuration to a value that avoids overlapping the bandwidth allocated to transmissions of the one or more random access channels. The SRS is transmitted in accordance with a bandwidth from the reconfigured SRS bandwidth configuration. Information regarding the SRS bandwidth configuration is provided to a User Equipment (UE) by the network.
Apparatuses, methods, and systems for jitter equalization and phase error detection
Embodiments include apparatuses, methods, and systems for jitter equalization and phase error detection. In embodiments, a communication circuit may include a data path to pass a data signal and a clock path to pass a clock signal. A jitter equalizer may be coupled with the data path and/or clock path to provide a programmable delay to the data signal and/or clock signal, respectively. The delay may be determined by a training process in which a supply voltage may be modulated by a modulation frequency. The delay may be dependent on a value of the supply voltage, such as a voltage level and/or jitter frequency component of the supply voltage. A phase error detector is also described that may be used with the communication circuit and/or other embodiments.
Method and apparatus for HARQ in peer-to-peer (P2P) communication system
The present specification discloses a method for making a hybrid automatic repeat request (HARQ) for a terminal in a wireless connection system supporting peer-to-peer (P2P) communication between terminals, the method comprising: receiving, from a base station, control data for P2P communication; transmitting, based on the received control data, data from an uplink or downlink subframe, which is defined as a region for transmission to another terminal; and receiving an Acknowledgement (ACK) or not-Acknowledgement (NACK) regarding the sent data from an uplink subframe, linked to the downlink or uplink subframe, among the subframes defined as a region for reception from another terminal. The control data comprises a frame structure data used in P2P communication, wherein the frame structure data comprises an arrangement of the transmission and reception regions and HARQ linkages between subframes.
Sequence number update
The invention relates to a method and device in a communications network when a User Equipment, UE, needs to update a next expected Transmission Sequence Number, TSN, continuously in order to avoid discarding successive transmissions. The method comprises: resetting a next expected TSN value in said network and UE to predetermined values after a predetermined inactivity time.
Communication apparatus, transmitting method and receiving method
A communication apparatus that performs receiving processing of data transmitted at timings of a predetermined interval, the communication apparatus includes: a transmitting unit configured to transmit a signal indicating that data is successfully received when the data transmitted at Mth timing according to the predetermined interval is successfully received; and a control unit configured to determine whether or not a retransmission control processing is performed when the signal indicating that the data is successfully received is transmitted, wherein the control unit transmits a signal indicating that the data is successfully received when the retransmission control processing is performed.
Systems and methods for equalizing retransmission delays for data retransmission over bonded modems
Embodiments of the present invention provide systems for incorporating bonding processors while avoiding bonding processor buffer overflow by initiating retransmission requests on all data lines whenever corrupted data is encountered on one data line. Initiating these “extra” retransmission requests equalizes retransmissions delays over all transmission lines, preventing the bonding processor from receiving excess data that cannot be reassembled until the retransmission request is processed.
Endpoint device antenna beam forming based jamming detection and mitigation
A method, computer-readable storage device and apparatus for locating a source of a communication impairment are disclosed. For example, the method detects the communication impairment, performs a sweep to locate a direction of the source of the communication impairment, wherein the sweep is performed in response to the detecting the communication impairment at the endpoint device, and generates a null in the direction of the source of the communication impairment.
Reception circuit and semiconductor integrated circuit device
A reception circuit includes: a plurality of block circuits that each include a phase control circuit that controls a phase of a first clock, and a plurality of internal circuits that are driven by a second clock generated based on the phase-controlled first clock, wherein the phase control circuit in each of the block circuits is controlled by means of a control signal from an operation phase control circuit in such a way that an error rate for reception data due to the plurality of block circuits decreases.
Great circle solution to polarization-based quantum communication (QC) in optical fiber
Birefringence in optical fibers is compensated by applying polarization modulation at a receiver. Polarization modulation is applied so that a transmitted optical signal has states of polarization (SOPs) that are equally spaced on the Poincaré sphere. Fiber birefringence encountered in propagation between a transmitter and a receiver rotates the great circle on the Poincaré sphere that represents the polarization bases used for modulation. By adjusting received polarizations, polarization components of the received optical signal can be directed to corresponding detectors for decoding, regardless of the magnitude and orientation of the fiber birefringence. A transmitter can be configured to transmit in conjugate polarization bases whose SOPs can be represented as equidistant points on a great circle so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors.
RF channelizer based on parametrically generated combs derived from a single master seed
An RF channelizer comprising: a master laser for generating a reference beam; a splitter for splitting the reference beam into first and second beams; first and second modulator modules for converting the first and second beams into first and second modulated beams; first and second seed tone generators for deriving first and second seed tones; first and second parametric mixers for converting the first and second seed tones into first and second combs; a signal modulator for modulating a received RF signal onto the first comb; first and second optical filters for separating the first and second combs into pluralities of first and second filtered beams with center frequencies corresponding to the second comb lines; and a coherent detection array for selecting, combining, and detecting corresponding pairs from first and second filtered beams providing at the output a contiguous bank of channelized signals covering the bandwidth of the RF signal.
Large capacity optical transceiver module
A large capacity optical transceiver module includes: an optical transmitter configured to convert electric signals input from an external source into optical signals to transmit the converted signals, in which the electric signals are directly modulated into optical signals in a plurality of sub groups to be multiplexed; and an optical receiver configured to receive optical signals from the external source, and to convert the received optical signals into electric signals to output the converted signals, in which the optical signals are demultiplexed in a plurality of sub groups to be converted into electric signals.
Recovering energy from an IrDA/remote control transmitter circuit
A portable electronic device with an IrDA transmitter LED is used to transmit both IrDA signals and remote control infrared signals. The device transmits remote control infrared signals with reduced power consumption. During a relatively longer remote control signal pulse, an inductor saturates and stores energy when a drive current flows from a power supply, through the inductor and then through the LED. An energy-transferring circuit transfers a portion of the energy stored in the inductor to the power supply. Energy is transferred when the drive current is cut and the voltage across the inductor surges, which causes an overflow current to flow through a diode in the energy-transferring circuit and to the power supply. The inductor is a planar coil of traces on a printed circuit board and therefore costs less to manufacture than does a toroidal coil of wires.
Optical data transmission system
A data transmission between a device and a first and a second optical maintenance port involves a transmission reflector in the form of a solid-state bound data line having a gap and a Y coupler. This allows recording of the communication between the device to be read out and the first optical maintenance port in real time by means of the second optical port. Likewise, communication by means of electromagnetic energy is possible between the first and the second optical maintenance ports.
System and method for communication between two communication platforms
A system for communication between two communication platforms, including a near-earth returning platform and a remote platform. A bidirectional asymmetrical communication link is set up between the two platforms.
Setting up hybrid coded-light—ZigBee lighting system
A lighting system (100) comprising a central lighting device (111), at least one satellite lighting device (121, 131), and a controller (141) for adjusting light settings, is provided. The controller is arranged for transmitting, in response to a user request (140), an association request over a first communication link (142). The central lighting device is arranged for receiving the association request and re-transmitting the association request over a second communication link by means of coded light (112). The satellite lighting device is arranged for transmitting, in response to receiving the association request, its identifier to the central lighting device. The identifier is only transmitted if an association process is enabled. The association process is enabled, in response to a user request, during a limited time period. The central lighting device is further arranged for associating, in response to receiving the identifier, the satellite lighting device with the central lighting device.
Method and apparatus for testing transmission lines normally propagating optical signals
A portable apparatus for measuring parameters of optical signals propagating concurrently in opposite directions in an optical transmission path between two elements, at least one of the elements being operative to transmit a first optical signal (S1) only if it continues to receive a second optical signal (S2) from the other of said elements, comprises first and second connector means for connecting the apparatus into the optical transmission path in series therewith, and propagating and measuring means connected between the first and second connector means for propagating at least the second optical signal (S2) towards the one of the elements, and measuring the parameters of the concurrently propagating optical signals (S1, S2). The measurement results may be displayed by a suitable display unit. Where one element transmits signals at two different wavelengths, the apparatus may separate parts of the corresponding optical signal portion according to wavelength and process them separately.
PON supervision using OTDR measurements
A Wavelength Adaptation Module and a method therein for adapting an Optical Time Domain Reflectometry, OTDR, signal for supervision of Optical Network Terminals, ONTs, in a Passive Optical Network, PON, are provided. The wavelength of the OTDR signal is adapted to have a pre-selected wavelength to enable a splitter in a remote node to forward the OTDR signal to a dedicated group of ONTs in the PON, thereby supervising the fiber links between the remote node and the dedicated group of ONTs. Likewise, a remote node and a method therein for receiving an OTDR signal having a pre-selected wavelength from the Wavelength Adaptation Module and for outputting the OTDR signal to a dedicated group of ONTs with regards to the pre-selected wavelength of the received OTDR signal are provided.
Protection channel provisioning method and node equipment
A protection channel provisioning method includes: reserving a first protection channel corresponding to a first work channel and a second protection channel corresponding to a second work channel; provisioning a shared protection channel by configuring a circuit of node equipment provided on a shared route on which the first protection channel and the second protection channel are redundantly reserved so that a data signal of the first work channel or a data signal of the second work channel is transmitted via the shared route; and configuring a circuit of branch node equipment provided in a branch node at which the shared protection channel is guided to a first node corresponding to the first protection channel and a second node corresponding to the second protection channel so that the data signal transmitted via the shared protection channel is not guided to the first node and the second node.
Method, apparatus, and radio remote unit for transmitting wireless base band data
Disclosed is a method for transmitting wireless base band data, comprising: receiving a downlink base band signal transmitted by a base band processing unit (BBU), processing the downlink base band signal to module the downlink base band signal into a downlink intermediate frequency analog signal, and outputting the downlink intermediate frequency analog signal to an Ethernet cable; obtaining, from the Ethernet cable, an uplink intermediate frequency analog signal which is detected and fed back, and processing the uplink intermediate frequency analog signal; and taking the processed uplink intermediate frequency analog signal as a feedback input of digital pre-distortion (DPD), obtaining an intermediate frequency analog signal from the Ethernet cable, converting the intermediate frequency analog signal into an uplink base band signal, and sending the uplink base band signal to the BBU. Embodiments of the present invention also provide a corresponding apparatus and radio remote unit (RRU) for transmitting wireless base band data. By adopting the solutions disclosed in the embodiments of the present invention, transmission of a wireless base band signal between a BBU and an RRU can be implemented through an Ethernet signal+an intermediate frequency signal+power over Ethernet (EIP) device, thereby avoiding a high network deployment cost caused by the need of laying down an optical fiber or a microwave transmission network again.
Smart relay network
A wireless relay node network includes a plurality of relay devices wherein each relay device is configured to receive a first wireless signal in a first frequency band, and transmit a second wireless signal derived from the first wireless signal using a first set of network use parameters. The plurality of relay devices includes at least a first relay device and a second relay device. The first relay device is configured to select the first set of network use parameters from network resources available for communicating over the wireless relay node network based, at least in part, on a control signal received from the second relay device. The second control signal identifies a second set of network use parameters used by the second relay device.
Receive only smart ground-terminal antenna for geostationary satellites in slightly inclined orbits
A receive-only smart antenna with a directional-point command capability for communication with geostationary satellites, allowing autonomous detection of received signals in order to allow steerage of multiple beams. An array feed is used to illuminate a parabolic reflector, with each feed element of the smart antenna associated with a unique beam-pointing direction. As the receiver switches to different feed elements, the far-field beam is scanned, making it possible to track a geostationary satellite in slightly inclined orbits, eliminating the need for mechanical tracking mechanisms while maintaining high antenna gain in the direction of the satellite. The receive-only smart antenna also features capabilities for forming multiple simultaneous beams supporting operations of multiple geo-satellites closely space in slightly inclined orbits. The designs can support orthogonal beams for enhanced bandwidth capacity via multiple beams with excellent spatial isolation. In addition, the use of toroidal reflectors with multiple linear array feeds spaced in the azimuth direction enables multi-beam operation, allowing multiple geostationary satellites spaced up to ±15 beam-widths of the terminal in azimuth, to be tracked simultaneously and independently.
Radio communication apparatus, transmitter, and radio communication method
In a phased array antenna radio communication apparatus including a plurality of antennas, a radio communication apparatus is provided which can reduce an influence of the local leak signals on the radiation direction of transmission signals. Local signal phase shifters 11-1 to 11-h are used to control phases of local signals to be input to quadrature modulators 13-1 to 13-h, and baseband signal phase shifters 12-1 to 12-h are used to control phases of baseband signals to be input to the quadrature modulators 13-1 to 13-h. The radiation direction of the local leak signals to be sent from transmission antennas 15-1 to 15-h can be controlled by the local signal phase shifters 11-1 to 11-h, and the radiation direction of the transmission signals can be controlled by both of the local signal phase shifters 11-1 to 11-h and the baseband signal phase shifters 12-1 to 12-h.
Method and apparatus for processing feedback information in wireless communication system supporting beamforming
A method and an apparatus for processing feedback information in a wireless communication system supporting a beamforming are provided. The method includes receiving reference signals for each of at least one of transmitted beams which are transmitted from a base station with respect to each received beam of the terminal, determining reception power related information for a beam combination including each of the at least one of the transmitted beams and the received beam, determining channel capacities for each beam combination targeted beam combinations of which each value is equal to or greater than a certain critical value, as a result of the determining of the reception power related information, and determining best beam related information based on the result of the determining of the channel capacities.
Method for multi-antenna uplink transmission
A method (300) and apparatus (106) for transmitting information based on a relationship between a first channel and a second channel is disclosed. The method can include taking (302) a first channel measurement corresponding to a first antenna of a wireless terminal and taking (304) a second channel measurement corresponding to a second antenna of the wireless terminal. The method can include determining (306) a relationship between the first channel and the second channel based on the first channel measurement and based on the second channel measurement. The method can include transmitting (310) information related to an uplink transmission where the information can be based on the relationship.
Multiple-input multiple-output (MIMO) communication system
A multiple-input multiple-output (MIMO) capable system is contemplated. The communication system may include a signal processor configured to separate an input stream into multiple signal paths to facilitate simultaneous transport through a communication medium. The capability to simultaneously transmit multiples signal paths may be beneficial in order to maximize throughput and/or minimize expense.
Method and device for adaptive pre-coding
A network node which supports EGPRS, the network node being arranged to transmit RLC data blocks to at least one other network node in the EGPRS system and to receive acknowledgments from the other network node for successfully received RLC data blocks. The network node is also arranged to make pre-emptive retransmissions of unacknowledged previously transmitted RLC data blocks, and to make its transmissions with or without precoding. The network node is arranged to use precoding for a first percentage of the pre-emptive retransmissions and for a second percentage of the transmissions of RLC data blocks that have not been transmitted previously.
Precoding method, and transmitting device
Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a precoding weight by a baseband signal after a first mapping and a baseband signal after a second mapping and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
Wireless network with coordinated sectors to mitigate interference
A wireless network with coordinated sectors to mitigate interference. An example of the network includes a plurality of antennas each having a directional gain pattern, at least one antenna located at a first access point and at least one antenna located at a second access point spaced apart from the first access point, at least one antenna at the first access point oriented with maximum gain in a first direction that defines as first sector and at least one antenna at the second access point oriented with maximum gain in a second direction that defines a second sector, and at least one transceiver coupled to the antennas In sequence any antennas oriented in the first sector separately from any antennas oriented in the second sector.
Wireless power transfer to embedded sensors
In certain embodiments of the present disclosure, a wireless sensor system is described. The wireless sensor system includes a near-field wireless power transfer component, at least one measurement sensor, and an antenna. The antenna is in communication with the measurement sensor and can transmit measurements from the measurement sensor. The near-field wireless power transfer component can wirelessly receive power to operate the measurement sensor.
Apparatus for power line communication
Disclosed is an apparatus for power line communication. More specifically, in order to solve a problem of the conventional art, in which the magnitude of power line communication signals exceeds a reference value allowed in the law, the apparatus controls a communication signal to be selectively output a communication target phase among phases of a three-phase power line. Accordingly, it is possible to maintain the magnitude of the output communication signal to be low. Further, it is possible to reduce distortion of a power signal, caused by the communication signal, and malfunction of other power facilities due to the distortion. Further it is possible to easily and simply perform initiation of the power line communication.
Cable assembly and signal transmission system using the same
An exemplary embodiment of the present disclosure illustrates a cable assembly. The cable assembly comprises a first cable and a second cable. The first cable has two contacts at both ends thereof, and the second cable has two contacts at both ends thereof. The first cable and second cable are used for transmitting a first signal and a second signal respectively. A differential signal is formed by the first signal and the second signal, and at least one of those contacts is an adjustable contact. The adjustable contact adjusts an electrical length of the first cable or the second cable to control a phase error between the first signal and the second signal.
Systems and methods for frequency hopping in wireless communication systems
A method may include determining whether events associated with at least one of a plurality of wireless devices are active. The method may then include sending a first command to each of the plurality of wireless devices when the events are not active, such that the first command changes a first frequency to a second frequency. The method may also include sending a second command to each wireless device of a portion of the plurality of wireless devices when the events are active, such that the second command changes the first frequency to the second frequency. Here, each wireless device of the portion of the plurality of wireless devices is not associated with the events. The method may then include changing a third operation of a first wireless device associated with the events from the first frequency to the second frequency after the events are not active.
Method, apparatus, receiver, computer program and storage medium for joint detection
A method, apparatus, receiver, computer program and storage medium for joint detection are disclosed. The joint detection method includes categorizing interference signals based on level of interference so as to obtain a strong interference signal, cancelling the strong interference signal from a received signal, and performing a joint detection by utilizing a matched filtering result of a remaining signal. In one embodiment, it is to firstly determine whether a strong interference codes corresponding to an intra-frequency adjacent cell exists in an active code list or not, recovering a strong interference signal transmitted by a Node B if the strong interference codes exists, applying an interference cancellation to a received signal received by a receiver so as to obtain a matched filtering result of a remaining signal derived by subtracting the strong interference signal from the received signal, performing a joint detection by utilizing the matched filtering result of the remaining signal, and outputting a demodulated result. In at least one embodiment, the computation complexity of the joint detection is reduced, and the accuracy of the joint detection is improved.
Method and apparatus for frame synchronization in a positioning system
A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.
High-frequency front-end circuit
A high-frequency front-end circuit includes a first variable filter and a second variable filter. One end of each of the variable filters is connected to a common terminal. The other end of the first variable filter is connected to a transmission individual terminal and the other end of the second variable filter is connected to a reception individual terminal. At the time of transmission of a transmission signal, the impedance of the second variable filter is adjusted such that the impedance seen on the second variable filter side from a connection point between the variable filters is open. At the time of transmission of a reception signal, the impedance of the first variable filter is adjusted such that the impedance seen on the first variable filter side from a connection point between the variable filters is open.
Double-mode and double-standby mobile terminal and communication method thereof
A dual-mode dual-standby mobile terminal is provided, including: dual card slots configured to interpose two communication cards; a human-machine interface adapter configured to send radio frequency starting commands to dual protocol stacks, and send, after receiving radio frequency success messages fed back by the dual protocol stacks, initialization commands to dual card management modules; the dual card management modules configured to initialize the communication cards in the dual card slots according to initialization commands sent by the human-machine interface adapter, and feed back initialization success messages to the human-machine interface adapter; dual protocol stacks configured to receive the radio frequency starting commands sent by the human-machine interface adapter, start radio frequencies in the dual protocol stacks, and feed back radio frequency state information to the human-machine interface adapter. Communication protocols are provided to the communication cards in the dual card slots according to initialization results. A communication method of the dual-mode dual-standby mobile terminal is also provided. Thus, a 2G card and a 3G card can be inserted into a mobile phone in any order, and a desired network service can be provided to a user conveniently.
Multimode receiver with complex filter
One aspect of the present invention includes a radio frequency (RF) receiver having a first mixer and a second mixer. The first mixer may be an I-mixer and the second mixer a Q-mixer for downconverting the received RF signal. An impedance circuit is disposed between the first mixer and the second mixer to decouple the channels. In another aspect of present invention, the RF receiver includes a digital filter having at least one complex coefficient. The digital filter exhibits asymmetrical frequency response, and may be used to compensate the asymmetrical frequency response of another filter in the RF receiver.
Transmission apparatus and wireless signal transmission method
RF input signals having mutually different carrier frequencies are input from a signal generator to a power amplifier, the power amplifier amplifying the RF input signals and outputting them as RF output signals. The signal generator has a function for reducing the PAR of the waveform combining the RF input signals. The PAR reduction of the combined waveform of the RF input signals is performed through a control on the transmission timing of the RF input signals via a delay adjuster installed in the signal generator, or through an amplitude constraint on the RF input signals via a limiter installed in the signal generator. In this manner, a transmission device with improved power efficiency is provided.
Decoding of product codes
In one embodiment, a method is provided to receive a set of data and in an iterative process: C1 decode all first subsets of the set of data two or more times in each half iteration using two or more C1-decoding methods when a first subset is not decoded successfully using a first C1-decoding method, determine whether to stop decoding the set of data after the C1 decoding and output results of the C1 decoding, increment a half iteration counter to indicate completion of a half iteration, C2 decode all second subsets of the set of data, determine whether to stop decoding the set of data after the C2 decoding and output results of the C2 decoding, increment the half iteration counter to indicate completion of another half iteration, and output the set of decoded data when all subsets of the set of data are decoded successfully.
Method and circuit for shortening latency of Chien'S search algorithm for BCH codewords
A method for shortening latency of Chien's search and related circuit are disclosed. The method includes the steps of: determining a shifted factor, p; receiving a BCH codeword; computing a syndrome from the BCH codeword; finding an error-location polynomial based on the syndrome; and processing Chien's search for the error-location polynomial to find out roots thereof. p is a number of successive zeroes from the first bit of the BCH codeword, the Chien's search starts iterative calculations by substituting a variable of the error-location polynomial with a nonzero element in Galois Field, GF(2m), and the nonzero element ranges from αp+1 to αn, wherein n is a codelength of the BCH codeword and equals 2m−1, and m is a positive integer.
Successive approximation register analog to digital converters
A SAR ADC is provided. A DAC provides an intermediate analog signal according to an analog input signal, a most significant bit capacitance and a plurality of significant bit capacitances smaller than the most significant bit capacitance. A first switched capacitor array selectively provides the most significant bit capacitance or the significant bit capacitances according to a select signal. Sum of the significant bit capacitances is equal to the most significant bit capacitance. The second switched capacitor array provides the significant bit capacitances when the first switched capacitor array provides the most significant bit capacitance, and provides the most significant bit capacitance when the first switched capacitor array provides the significant bit capacitances. A comparator provides a comparison result according to the intermediate analog signal. A SAR logic provides an digital output signal according to the comparison result.
Dynamic reference frequency for fractional-N Phase-Locked Loop
Within a receiver, the frequency of a comparison reference clock signal supplied to a fractional-N Phase-Locked Loop (PLL) is dynamically changed such that undesirable reciprocal mixing of reference spurs with known jammers (for example, transmit leakage) is minimized. As the transmit channel changes within a band, and as the transmit leakage frequency changes, a circuit changes the frequency of the comparison reference clock signal such that reference spurs generated by the PLL are moved in frequency so that they do not reciprocally mix with transmitter leakage in undesirable ways. In a second aspect, the PLL is operable either as an integer-N PLL or a fractional-N PLL. In low total receive power situations, the PLL operates as an integer-N PLL to reduce receiver susceptibility to fractional-N spurs. In a third aspect, jammer detect information is used to determine the comparison reference clock signal frequency.
Temperature compensated crystal oscillator
The temperature compensated crystal oscillator has a rectangular substrate, a frame which is provided on an upper surface of the substrate, a mounting frame which has joining pads which are provided along an outer circumferential edge of the upper surface and which is provided on a lower surface of the substrate by bonding of joining terminals which are provided along the outer circumferential edge of the lower surface of the substrate and the joining pads, a crystal element which is mounted on an electrode pad which is provided on the upper surface of the substrate in a region surrounded by the frame, an integrated circuit element which has a temperature sensor and which is mounted on a connection pad which is provided on the lower surface of the substrate in a region surrounded by the mounting frame, and a lid which is joined to the upper surface of the frame.
Electronic device, electronic apparatus, and moving object
An electronic device includes a heat generator having a terminal, a resonator which has an outer connection terminal and on which the heat generator is disposed, a first substrate having a first surface and a second surface with the resonator connected to the first surface, and a circuit part and other electronic parts disposed on the first surface or the second surface. The outer connection terminal of the resonator is connected to the first surface, and the terminal of the heat generator is connected to the second surface.
Load switch for controlling electrical coupling between power supply and load
Circuits and methods for controlling electrical coupling by a load switch are disclosed. In an embodiment, the load switch includes a pass element, level-shift circuit and low-resistance active path. The pass element is configured to be coupled to a power supply and a load, and is configured to electrically couple the power supply with the load during ON-state and electrically decouple the power supply from the load during OFF-state. The level-shift circuit includes a first transistor and pull-up resistor and is configured to generate a level-shifted signal in response to an enable signal, and enable the ON-state and the OFF-state of the pass element based on first and second voltages of the level-shifted signal. The low-resistance active path is coupled in parallel with the pull-up resistor for shunting the pull-up resistor in the OFF-state by providing a path for a leakage current of the first transistor in the OFF-state.
PVT compensation scheme for output buffers
In one integrated circuit embodiment, a programmable pull-down output buffer is calibrated by sequentially configuring the buffer at different drive-strength levels and adjusting a source current applied to the buffer until the voltage at an input node of the buffer reaches a reference voltage level. A programmable pull-up output buffer is then calibrated by sequentially configuring a pull-down output buffer based on the pull-down buffer calibration results and adjusting the drive-strength level of the pull-up buffer until the voltage at a common node between the two buffers reaches a reference voltage level. Average calibration results are generated by averaging multiple calibration results for each setting. Output buffers are thereby calibrated to compensate for PVT variations without using any external resistors and without requiring any I/O pins of the integrated circuit.
Three-mode high-speed level up shifter circuit
Embodiments of the present invention disclose a level up shifter circuit. The level up shifter circuit further includes two field effect transistors connected in series and a control circuit. Sources of the two field effect transistors and a source of a sixth field effect transistor are respectively connected to a drain of a first field effect transistor and a drain of a second field effect transistor of the conversion circuit, and the control circuit is turned on when a first voltage signal and a third voltage signal are zero at the same time and is turned off in other situations. The level up shifter circuit according to the embodiments of the present invention can effectively solve the problem that an output state is unknown.
High speed, high efficiency, high power RF pulse modulating integrated switch
Embodiments of a drain modulator that uses high power switch sensing to control active pulldown are generally described herein. In some embodiments, a logic and sense module is arranged to receive a control signal for controlling an on and an off state of an input of a switch to turn a high power voltage at an output of the switch on and off. A pullup module and a pulldown module are coupled to the input of the switch. An active pulldown module coupled to the output of the switch. The logic and sense module monitors the input to the switch and activates the active pulldown module to drain the output of the switch to a zero voltage when the input of the switch transitions to the off state.
Data bus synchronizer without an enable signal input
A data bus synchronizer includes a plurality of registers arranged in a cascade, configured to generate a synchronized output in response to sampling an asynchronous bus without an enable signal, where the plurality of registers receive a value on the asynchronous bus. A last register of the plurality of registers is configured to generate the synchronized output in response to a load enable signal. The data bus synchronizer further includes a logic block configured to generate the load enable signal on satisfaction of a logic condition.
Proximity switch assembly and calibration method therefor
A proximity switch assembly and method for detecting activation of a proximity switch assembly and calibrating the switch assembly. The assembly includes proximity switches each having a proximity sensor providing a sense activation field and control circuitry processing the activation field to sense activation. The control circuitry generates an activation output when a differential change in the signal exceeds a threshold and distinguishes an activation from an exploration of the plurality of switches. The control circuit further determines a rate of change and generates an output when the rate of change exceeds a threshold rate to enable activation of a switch and performs a calibration of the signals to reduce effects caused by changes in condensation.
Switch driving circuit
A switch driving circuit for driving a full-controlled power switch is disclosed, including a pulse-width modulation unit, a pulse transformer, an anti-interference module, a pulse-width demodulation unit and a driving-power amplifier. The pulse-width modulation unit converts a driving input signal into a positive-negative narrow pulse-width signal. The anti-interference module is coupled to the secondary side and the positive-negative narrow pulse-width signal includes multiple positive pulses and negative pulses. The anti-interference module filters out the ones from the positive pulses and negative pulses of which the pulse amplitude does not reach an effective threshold, and meanwhile the anti-interference module suppress a common-mode noise caused by a high voltage transient variation at a moment when the full-controlled power switch is turned on or off. The pulse-width demodulation unit converts the filtered positive-negative narrow pulse-width signal into a driving output signal.
Flexible input/output transceiver
An I/O transceiver includes a driver with a feedback circuit having a mode select signal input, a serial data signal input, and a driver output signal input. The feedback circuit can provide a feedback control signal that is coupled to a pre-driver circuit. The pre-driver circuit can modify a data signal in response to the feedback control signal and the data signal. A driver circuit is coupled to the pre-driver circuit and can provide a driver output signal responsive to the modified data signal. A receiver can be coupled to the driver to receive the driver output signal. The receiver includes a level shifting circuit that shifts the received signal to a voltage level determined by a selected signaling interface.
Low leakage shadow latch-based multi-threshold CMOS sequential circuit
Multi-threshold CMOS (MTCMOS) sequential circuits are presented with a first latch circuit formed of transistors with threshold voltages in a first range, along with a second latch circuit with inverters and a transfer gate formed of higher threshold voltage transistors for low-power retention of data from the first latch with power switching circuitry to selectively decouple inverters of the second latch circuit from a voltage supply during low-power retention mode operation of the sequential circuit.
A circuit includes a switching circuit, a node, and a tracking circuit. The switching circuit has a first terminal, a second terminal, and a third terminal. The node has a node voltage. The tracking circuit is electrically coupled to the third terminal and the node, and configured to receive the node voltage and generate a control voltage at the third terminal based on the node voltage.
Finite impulse response filter for producing outputs having different phases
A method and system for designing and implementing a finite impulse response (FIR) filter to create a plurality of output signals, each output signal having the same frequency but at a different phase shift from the other output(s), is described. Values are determined for the resistors, or other elements having impedance values, in a FIR filter having a plurality of outputs, such that each output has the same frequency response but a different phase than the other output(s). This is accomplished by the inclusion of a phase factor in the time domain calculation of the resistor values that does not change the response in the frequency domain. The phase shift is constant and independent of the frequency of the output signal.
Communication module comprised of multiple interdigital transducer duplexers for wireless communication unit
A communication module includes a plurality of duplexers, wherein at least either IDT electrodes of transmit filters of at least two of the plurality of duplexers having a different transmit band or IDT electrodes of receive filters of at least two of the plurality of duplexers having a different receive band are composed of a same material, have a same thickness and are provided on a single piezoelectric substrate.
Resonator element, resonator, oscillator, electronic apparatus, and moving object having reduced vibration leakage
A resonator element includes a base portion which includes one end portion and the other end portion opposing the one end portion in a plan view, and a pair of vibrating arms which extend along a first direction from the one end portion of the base portion. The base portion includes a reduced width portion in which a width is gradually decreased along a second direction intersecting the first direction toward a direction side which is separated from the base portion along the first direction, in at least one of the one end portion and the other end portion, and a fixing portion is provided between the one end portion and the other end portion of the base portion.
A module includes: a diplexer that includes a first terminal, a second terminal, and a common terminal coupled to an antenna; a first switch that is coupled to the first terminal, includes first ports, and selects, from the first ports, and connects one port to the diplexer; a first duplexer that is coupled to at least one of the first ports; a second duplexer that is coupled to the second terminal and has a passband different from a passband of the first duplexer; and a first impedance portion that is coupled to another port of the first ports.
Bandpass filter, high-frequency device and communications apparatus
A bandpass filter comprising two or more resonators arranged between two input/output terminals in a laminate substrate comprising pluralities of dielectric layers; each resonator being constituted by a resonance line and a resonance capacitance connected to one end of the resonance line; capacitance electrodes forming said resonance capacitances and said resonance lines being arranged on different dielectric layers, via a planar ground electrode covering the entire structural portion of the bandpass filter when viewed in a lamination direction; and in each of the resonators connected to said two input/output terminals, the junctions of said input/output terminals to said paths between said resonance lines and said resonance capacitances being closer to said resonance capacitances than said resonance lines in a lamination direction.
Surface mountable multi-layer ceramic filter
An improved electronic filter is provided with capacitance and integral inductance properties. The filter has a capacitor with first planer internal electrodes in electrical contact with a first termination and second planer internal electrodes in electrical contact with a second termination. A dielectric is between the first planer internal electrodes and the second planer internal electrodes. A third termination is provided and a conductive trace on a surface of the capacitor is between the third termination and the first termination. A ferromagnetic or ferrimagnetic material is coupled to the conductive trace.
Method for digitally compensating variations, as a function of temperature, of an electrical quantity of an embedded space radiofrequency telecommunications equipment item
A digital compensation method includes measuring the temperature of the equipment item and applying an analogue control voltage intended to maintain the electrical quantity of the equipment item at a predetermined setpoint value. At each measurement instant, the method includes interrogating look-up tables respectively associated with different setpoint values, then, when the measured temperature is situated between two digital temperature states stored in the look-up tables, creating intermediate digital temperature states situated between the two stored digital temperature states, computing, by interpolation, digital control words corresponding to the intermediate digital temperature states created, and selecting a digital control word, stored or intermediate, corresponding to the measured temperature, then delivering, to at least one of the N individual devices, the analogue control corresponding to the selected digital control word.
Read-out for MEMS capacitive transducers
Amplifier arrangements for read-out of MEMS capacitive transducers, such as low-noise amplifiers. An amplifier circuit has first and second MOS transistors, with the gate of the first transistor driven by the input signal, and the gate of the second transistor driven by a reference. The sources of the first and second transistors are connected via an impedance. Modulation circuitry is arranged to monitor a signal with a value that varies with the input signal and to modulate the back-bias voltage between the bulk and source terminals of the first and second transistors with the applied modulation being equal for each transistor and based on said monitored signal. The back-bias of the first transistor can be increase to extend the input range of the transistor in situations where the input signal may otherwise result in signal clipping, while avoiding noise and power issues for other input signal levels. By applying an equal modulation to the back-bias of each transistor, there is no substantial modulation of the output signal.
Temperature stabilized circuitry
This disclosure relates to temperature stabilization of at least a portion of an amplifier, such as a logarithmic amplifier, and/or a band gap reference circuit. In one aspect, one or more stages of an amplifier, a heater, and a temperature sensor are included in a semiconductor material and surrounded by thermally insulating sidewalls.
Stacked bias I-V regulation
A RF amplifier circuit including a plurality of FET devices, where a source terminal of an FET device is electrically coupled to the drain terminal of another FET device. The circuit further includes a voltage divider network and a plurality of operational amplifiers, where a separate one of the operational amplifiers is provided for each FET device. Each operational amplifier includes a positive input terminal, a negative input terminal and an output terminal, where the output terminal for a particular operational amplifier is electrically coupled to a gate terminal of a particular FET device, the negative input terminal of each operational amplifier is electrically coupled to the source terminal of the particular FET device and the positive input terminal of each operational amplifier is electrically coupled to the voltage divider network. A source resistor is electrically coupled to the source terminal of a bottom FET device in the stack.
Control systems and methods for power amplifiers operating in envelope tracking mode
Control systems and methods for power amplifiers operating in envelope tracking mode are presented. A set of corresponding functions and modules are described and various possible system configurations using such functions and modules are presented.
Inductive-capacitive (LC) voltage controlled oscillator (VCO) having tuning range controlled by a digital-to-analog converter (DAC) with programmable tail current
A device includes an inductive-capacitive voltage controlled oscillator (LC-VCO) having a tank circuit and programmable tail current, and a control circuit configured to adjust the tail current based on an amount of capacitance provided to the tank circuit.
Circuit arrangement for creating microwave oscillations
An electronic oscillator of a circuit arrangement for creating microwave oscillations with two transistors as amplifier elements and with a resonator (4), wherein the resonator has two emitter impedance networks, the base impedance network and/or an emitter impedance network or both emitter impedance networks can be put out of tune and the transistors each have a parasitic base collector capacitance. The repercussion of the load on the electronic oscillator (“load-pulling”) is greatly reduced so as to be eliminated as much as possible, in that a compensation capacitance is switched between the collector of the first transistor and the base of the second transistor as well as between the collector of the second transistor and the base of the first transistor, and the compensation capacitances are implemented by reverse-biased pn-junctions.
DC electric motor control device
A DC electric motor control device has a motor driving circuit that is constructed by a plurality of switching elements, a controller that operates the motor driving circuit to control a normal rotation or a reverse rotation of a DC electric motor, and an abnormality determination part that determines whether an abnormality is generated while the controller controls the DC electric motor. The controller previously performs reverse rotation control of the DC electric motor for a predetermined time using the motor driving circuit when performing normal rotation control of the DC electric motor, and the controller performs the normal rotation control only when the abnormality determination part determines that the abnormality is not generated during the reverse rotation control.
Motor controlling device, motor controlling method and machinery system
A motor controlling device is provided. The device includes a position controller for generating a speed reference based on a positional reference and a motor position, a speed controller for generating a torque reference based on the speed reference and a motor speed, a motor drive for driving a motor based on the torque reference, the motor driving machinery to which an acceleration sensor is attached, an acceleration feedback signal generator for generating a feedback signal to the speed reference based on an acceleration detection signal that is a detection signal of the acceleration sensor, and a positional reference filter inputted with the positional reference and suppressible of low frequency vibration of the machinery.
Motor control circuit
In a motor control circuit, a switching element such as an FET for controlling a motor current and a current detection element for detecting the motor current are connected in series. One terminal of a temperature detection element is electrically connected to an electrical connecting section between the FET and the current detection element, and the other terminal of the temperature detection element is electrically connected to a temperature detection circuit.
Power generation apparatus
A power generation apparatus includes a dielectric, a movable member being opposed to the dielectric with a predetermined distance, and an electret and an opposing electrode that are formed on the surface of the movable member facing the dielectric so as to generate a fringe electric field penetrating the dielectric between the two electrodes. When the volume occupancy of the dielectric between the electret and the opposing electrode varies in accordance with a displacement of the movable member, the power generation apparatus outputs the electric charge induced in the opposing electrode as electric current.
Passive unipolar referencing for non-isolated inverters
Systems and methods for referencing a photovoltaic array are disclosed. An exemplary method includes converting DC power with an inverter from a photovoltaic array to AC power at a line frequency and placing the entire photovoltaic array above ground potential or below ground potential. The AC power is transformed with a transformer and an integrity-check signal is generated to vary a voltage of the photovoltaic array to perform an integrity check. A star point of the transformer is pinned to ground at the line frequency so the integrity-check signal is applied to the DC-side of the inverter and a limited level of fault current is allowed to flow from ground to the star point of the transformer to facilitate a detection of ground faults.
Power converter and illumination device using the power converter
A power converter includes a mounting substrate, a one-piece-type connector including an input connector and an output connector, the input connector and the output connector being formed in one-piece and arranged side by side; and a case made of an electrically conductive material. The one-piece-type connector includes lead terminals configured to connect the input cable and the output cable to a power converting circuit and an electrically conductive ground connection portion electrically connected to the case through an electrically conductive member. The ground connection portion includes a shield surface arranged to extend along at least a portion of a side surface of the output connector.
Electric power converting device and electric power converting method
In one embodiment, an electric power converting device includes a converter which converts a three-phase AC voltage output from a three-phase AC power source, into a DC voltage of each phase of a three-phase AC load, and an inverter which converts the DC voltage converted by the converter, into a single-phase AC voltage of each phase of the three-phase AC load. The converter includes for each phase of an electric power system a circuit which consists of a plurality of switching elements connected in series. The electric power converting device controls on/off of a switching element corresponding to one of phases of the electric power system in the converter such that a voltage which reduces fluctuation of a DC voltage applied between the converter and the inverter and corresponding to each phase of the three-phase AC load is output from the converter for each phase of the electric power system.
Isolated power converter circuit and control method thereof
The present invention discloses an isolated power converter circuit and a control method thereof. The isolated power converter circuit includes: a transformer circuit, a power switch circuit, an opto-coupler circuit, and a control circuit. The transformer circuit includes a first winding and a second winding. The power switch circuit is coupled to the transformer circuit to control it according to a driving signal. The opto-coupler circuit generates a feedback signal. The control circuit is coupled to the power switch circuit and the opto-coupler circuit, for generating the driving signal according to the feedback signal. The control circuit includes a distinguishing circuit for distinguishing a status of the feedback signal.
System and method for power supply control
A resonant power supply is provided. The resonant power supply comprises a series resonant converter configured to convert an input DC voltage to an output DC voltage to generate an output DC voltage. The series resonant converter includes a switching stage, a resonant inductor, a resonant capacitor, and an isolation transformer. The resonant power supply further comprises a converter controller configured to obtain an actual trajectory radius signal based on a resonant inductor current, a resonant capacitor voltage, and a voltage in association with the isolation transformer. The converter controller is further configured to generate a trajectory radius command signal based on a DC voltage command signal and a DC voltage feedback signal, and to generate control signals to be applied to the switching stage based on the actual trajectory radius signal and the trajectory radius command signal.
Resonance-type power supply apparatus
There is provided a resonance-type power supply apparatus capable of controlling primary side switching by estimating output power based on resonance current of the primary side. The resonance-type power supply apparatus includes a switching unit switching input power, a transformer including a primary winding receiving the power switched by the switching unit and a secondary winding magnetically coupled to the first winding and having a preset turns ratio, and transforming the received switched power according to the turns ratio, a resonance unit electrically connected between the switching unit and the transformer and providing a resonance tank resonating with inductance from the transformer, and a controlling unit controlling the switching of the switching unit based on resonance power information input to the primary winding of the transformer by the resonance unit.
Isolated power supply, control signal transmission circuit and method thereof
In one embodiment, method of generating a control signal for an isolated power supply, can include: (i) generating a first ground noise component with a first predetermined proportionality to a ground noise signal; (ii) generating a first peak signal based on a first control signal having the ground noise signal, where the first peak signal comprises a second ground noise component with a second predetermined proportionality to the ground noise signal; (iii) generating a second control signal based on a difference between the first peak signal and the first ground noise component; and (iv) controlling, by the second control signal, a switch of the isolated power supply.
Control method to reduce switching loss on MOSFET
A method of controlling a switching mode power converter enables zero voltage switching by forcing a voltage across the main switch to zero. This is accomplished by sensing when a current on the secondary side of the power converter drops to zero, or other threshold value, and then generating a negative current through the secondary winding in response. The negative secondary current results in a corresponding discharge current in the primary winding, which reduces the voltage across the main switch. The voltage across the main switch is monitored such that when the voltage reaches zero, or other threshold value, the main switch is turned ON. In this manner, the circuit functions as a bi-directional current circuit where a forward current delivers energy to a load and a reverse current provides control for reducing the voltage across the main switch to enable zero voltage switching.
DC-to-DC converter input stage with capacitive current limit
A power converter may have an input stage that includes a pair of transformer coils, switching circuitry to energize the pair of transformer coils according to an input supply voltage provided by an input source, and a limiting circuit coupled between the pair of transformer coils to cause the input stage to stop drawing current from the input source once the amount of charge drawn from the input source reaches a specific value. An output stage of the power converter may receive energy from the pair of transformer coils, and convert the received energy into an output supply voltage. The pair of transformer coils may continue providing energy stored in a leakage inductance of the pair of transformer coils to the output stage for at least a period of time, once the limiting circuit has caused the input stage to stop drawing current from the input supply.
Power supply device and lighting device
A power supply device is provided with the following: a rectifier circuit that rectifies an alternating voltage from an alternating current source; a booster circuit that boosts the voltage after rectification, and generates an input side voltage of a voltage conversion unit; the voltage conversion unit that outputs a voltage required for reducing the input side voltage and supplying the input side voltage to a light source; a voltage current detection unit that determines whether or not the light source is connected; and an output voltage control unit that, if it is determined that a first resistor and a second resistor, which are connected in parallel with respect to the light source, and the light source are not connected, controls the voltage of the first resistor so that the voltage is no more than a prescribed value.
Series regulator on electronic control unit for automotive vehicle
A capacitor connected to a microcomputer voltage wiring is downsized. A series regulator on an electronic control unit for automotive includes a battery as an in-vehicle power supply, a relay, an input side capacitor, a series regulator circuit, and an output side capacitor, and is connected to a microcomputer. The series regulator circuit includes an n-channel MOSFET, a gate voltage regulator circuit as an output control circuit of an FET, and a gate voltage holding capacitor. A capacitor GND voltage (gate voltage) is adjusted by the gate voltage regulator circuit to convert an input side capacitor voltage into an output side capacitor voltage, and supply a microcomputer current to the microcomputer.
Power system, power module therein and method for fabricating power module
A power system, a power module therein and a method for fabricating power module are disclosed herein. The power module includes a first and a second common pins, and a first and a second bridge arms. The first and the second common pins are symmetrically disposed at one side of a substrate. The first bridge arm includes a first and a second semiconductor devices, and the first and the second semiconductor devices are connected to each other through the first common pin and disposed adjacently. The second bridge arm includes a third and a fourth semiconductor devices, and the third and the fourth semiconductor devices are connected to each other through the second common pin and disposed adjacently. The first and the third semiconductor devices are disposed symmetrically, and the second and the fourth semiconductor devices are disposed symmetrically.
Energy delivery system and method for a gate drive unit controlling a thyristor-based valve
The invention concerns energy delivery system and method for a gate drive unit controlling a thyristor-based valve (19). The system comprises at least one current transformer (22) located in the main current path of the valve.
System and apparatus for magnetic multiplication of torque and rotational movement
According to an exemplary embodiment, a rotational movement multiplier apparatus may be described. The rotational movement multiplier may be formed of at least one of a support structure, a lower platform, a support platform, and an upper platform that may be rigidly connected to the support structure. A driver disc may be rigidly connected to a driver shaft and a coupler may connect the driver shaft to a motor. Two or more rotor discs may be rigidly connected to a corresponding rotor shaft that may be rotatably connected with bearings to the support structure, and a first plurality of magnets may be rigidly connected to the driver disc and a second plurality of magnets may be rigidly connected to the rotor disc. Finally, the driver disc may be magnetically coupled to the rotor disc and may transmit rotational movement to the rotor disc without loss of torque or rotational speed.
Method for producing a stator winding of an electric machine, in particular for producing an alternator
The invention relates to a method for producing a stator winding (18) of an electric machine (10), in particular of an alternator, the stator winding (18) comprising at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) having several directly consecutively wound coils (82) having coil sides (88) and coil side connectors (91), the coils (82) being divided into first coils (82.1) and second coils (82.2), by means of a forming tool (100), in which grooves (105, 106; 105′, 106′) suitable for accommodating the coils (82) are provided, a first coil (82.1) being arranged in one groove (105; 105′) and a second coil (82.2) being arranged in another groove (105; 105′), characterized in that n−1 grooves (105, 106; 105′, 106′) are arranged between the first coil (82.1) and the second coil (82.2).
Rotating electrical machine control apparatus and rotating electrical machine system
A rotating electrical machine control apparatus includes a position information generator and a controller, where a reset request is given from the controller, the position information generator stores position information in accordance with a first signal indicating the rotation position of a rotating electrical machine in a position storage portion, and thereafter updates the position information stored in the position storage portion on the basis of a second signal. The controller gives a reset request to the position information generator, and determines an abnormality of the position information on the basis of the position information obtained before and after the reset request is given.
Electric cutting or drilling tools that use battery packs as power sources
An electric tool may include a tool main body configured to be able to mount a battery pack. The tool main body may include an electric motor, a controller for controlling the electric motor, and a centrifugal fan rotatably driven by the electric motor for producing a flow of air. The controller may be positioned such that the flow of air produced by the centrifugal fan is applied to at least a part of the controller.
Machine having a back-up bearing having a hybrid arrangement
A machine having a stator and a rotor having a rotor shaft supported in bearings, such that the rotor is rotatable about a rotation axis. The bearings are designed as active magnetic bearings in which the rotor is supported without contact. A respective back-up bearing is associated with each active magnetic bearing to catch the rotor when the respective active magnetic bearing fails. The respective back-up bearing has a bushing arranged on the rotor shaft and a sliding device arranged on the stator. The respective bushing has an inner ring arranged radially inside to fasten the bushing on the rotor shaft, and an outer ring that surrounds the inner ring radially outside and slides in the sliding device of the respective back-up bearing when the respective active magnetic bearing fails. The inner and outer rings are made of different materials and are connected to each other in a bonded manner.
Wind power generator with internal cooling circuit
A wind power generator with a closed internal cooling circuit has a stator that is implemented as sheet metal and includes a winding system which forms winding heads at the end faces of the stator. The stator is enclosed by a cooling jacket at least in the region of the laminated core, wherein permanent magnets of a rotor are disposed on a magnet wheel jacket embodied as a hollow shaft. The magnet wheel jacket is connected in a rotationally fixed manner to a shaft or shaft stubs by way of support elements at its end faces, wherein in its interior the hollow shaft has at least one tube whose lateral surface area runs at an equidistant clearance from the magnet wheel jacket. Blowers are mounted at the end faces of the rotor.
Winding structure, rotating electric machine, and rotating electric machine manufacturing method
A winding structure for a rotating electric machine includes: a core including slots; and a coil including a first winding and a second winding combined by intersecting the first winding and the second winding with each other. Each straight portion of the coil is inserted into any one of two slots arranged at a given interval so that the coil is assembled to the core.
Variable wireless power transmission
Exemplary embodiments are directed to variable power wireless power transmission. A method may include conveying wireless power to a device at a first power level during a time period. The method may further include conveying wireless power to one or more other devices at a second, different power level during another time period.
Virtual cell for battery thermal management
A system, method, and apparatus for virtual cells for battery thermal management are disclosed. The disclosed method involves sensing, with at least one temperature sensor, a temperature of at least one battery cell in a battery pack. The method further involves sensing, with at least one current sensor, at least one current within the battery pack. Also, the method involves determining, with a battery thermal management system (BTMS) controller, if the temperature of any of the battery cells in the battery pack exceeds a temperature limit (TLimit). Further, the method involves activating, with the BTMS controller, at least one virtual cell to provide current or sink current for at least one of the battery cells in the battery pack that exceeds the temperature limit.
Circuit and method enabling the sharing of a battery charger with multiple batteries
A circuit includes a first port configured for connection to a battery charger and a plurality of second ports each configured for connection to a battery to be charged. The circuit includes a corresponding switchable circuit path provided between the first port and each of the second ports. A control circuit is configured to selectively activate the switchable circuit paths so as to connect the first port to selected ones of the second ports for charging of the connected battery by the connected battery charger.
Printer mobility and scalability
Provided herein are devices, methods and other means, including those related to printers, as well as computer readable media for storing code to execute instructions for a device, and other systems for providing and supporting mobile printing and other types of devices. The circuit boards of a device can each be dedicated to different types of functionality and be installed into the device without the use of fasteners. In some embodiments, the printer's housing can include a base portion and a defining portion, where the defining portion largely defines the printer's shape, size and aesthetics and the base portion defines the printer's minimum size. Also provided herein is a removable belt clip that may be affixed to a portable printer and/or other device.
Charger, adapter and charging system
The charger includes: a connector to be connected to a battery; an identification unit configured to perform an identification process of judging whether the battery being connected to the connector is a compliant battery allowed to be directly connected to the connector or a non-compliant battery allowed to be indirectly connected to the connector, and output a result of the identification process; a main charging unit configured to charge the compliant battery according to a main charging condition appropriate to the compliant battery; an auxiliary charging unit configured to charge the non-compliant battery according to an auxiliary charging condition which does not cause a harmful effect on the non-compliant battery; and a control unit configured to receive the result from the identification unit, and, when the result indicates the compliant battery, activate the main charging unit, and, when the result indicates the non-compliant battery, activate the auxiliary charging unit.
Supplying grid ancillary services using controllable loads
A method includes determining a desired power draw for a plurality of loads connected to an electrical grid, each of the plurality of loads connected to the electrical grid through a load supply control and being able to obtain a desired amount of energy from the grid in a desired time period, and transmitting a plurality of instructions through a communication network to a plurality of load supply controls to cause at least some of the loads in the plurality of loads to receive power from the electrical grid at different rates than other loads of the plurality of loads such that the desired power draw is obtained and such that each load of the plurality of loads receives its corresponding desired amount of energy in the desired time period.
Actuator and energy management system comprising such actuators
An actuator for the power control of at least one connected load has a load detection device for detecting a magnitude of a load and/or a type of a load of the at least one as a measurement variable relating to the load of the at least one consumer. A communication interface receives at least one manipulated variable for the power control of the at least one consumer and transmits the measurement variable detected by the load detection device. Actuators of this type may be integrated into an energy management system, such as of a building automation system, for example.
Universal power interface
An electronic device is provided that may include an input port to couple to an external device, and a universal power interface to determine a type of the external device connected to the input port based at least on a voltage of a voltage supply line. The universal power interface may provide a power delivery path based on the determined type of the external device.
Bypass control structure of link unit of chain circuit active power filter and method
The present application relates to a bypass control structure of a link unit of a chain circuit active power filter and a control method thereof. The bypass control structure includes a main controller, a chain circuit multilevel inverter and a reactor connected to an external electric network. The chain circuit multilevel inverter generally comprises multiple levels of link units. A state of the switch means in each link unit in a chain circuit active power filer is detected in real time, and types of detected faults are classified so as to bypass the fault of the link unit with fault by utilizing the control of the switch means without fault in the link unit with fault. Normal operating, stability, reliability, high efficiency of the active power filter are ensured. Therefore, the problem that the operation must be suspended until the fault is eliminated is solved without any additional bypass means.
Power conversion apparatus
A controller for switching an inverter includes a current detecting unit, an overcurrent level determining unit which determines an overcurrent level for stopping the inverter in accordance with a value corresponding to the number of revolutions of a motor, a current comparing unit which compares a detected output current value of the inverter with the overcurrent level, and a gate signal generating unit which generates a signal for turning off all semiconductor switching devices of the inverter when the current comparing unit makes a determination that the detected output current value has reached the overcurrent level. The overcurrent level is lowered as the number of revolutions of the motor increases.
Line guiding system
The invention relates to a line guiding system (1) for accommodating and guiding supply lines between two connection points (2.1, 2.2) that can be moved relative to one another in a circular motion with respect to a rotational axis (d) over a rotational angle range, wherein the line guiding system (1) has an elongated strand (3.1, 3.2, 3.3) coupled to the connection points (2.1, 2.2), on or in which strand the supply lines can be arranged in a guided manner, and the strand (3.1, 3.2, 3.3) can be moved back and forth within the rotational angle range while guided over a circular arc, such as to form a first run (4.1), a second run (4.2), and a deflecting bend (5) that connects the first run (4.1) and the second run (4.2). In order to enable guidance of the supply lines over an increased rotational angle range, at least two strands, a first strand (3.1) and a second strand (3.2), are provided, which are arranged such as to be coupled one behind the other.
Electrical low-voltage switchgear assembly
The invention relates to an electrical low-voltage switchgear, comprising at least two power units accommodated in slide-in units or in a housing, and comprising control units assigned to the power units. The control units are spatially separated from the power units and power levers and are connected to one another via signal lines.
Spark plug for internal combustion engine
A spark plug for an internal combustion engine has a housing, an insulator, a center electrode, a ground electrode, and a tip projecting portion. The tip projecting portion has an air guiding surface. In the spark plug, when viewed from a plug axial direction, a straight line that connects the center, in the plug circumferential direction, of the erect portion of the ground electrode and a center point of the center electrode is a straight line. An extension line of the air guiding surface is a straight line. A distance between an intersection, between the straight line and the straight line, and the center point of the center electrode is a (positive towards the side moving away from the erect portion. An angle formed by the straight line and the straight line is b. A diameter of the housing is D. At this time, all of b≧−67.8×(a/D)+27.4, b≦−123.7×(a/D)+64.5, −0.4≦(a/D)≦0.4, and 0°
Semiconductor interband lasers and method of forming
A semiconductor interband laser that includes a first cladding layer formed using a first high-doped semiconductor material having a first refractive index/permittivity and a second cladding layer formed using a second high-doped semiconductor material having a second refractive index/permittivity. The laser also includes a waveguide core having a waveguide core refractive index/permittivity, the waveguide core is positioned between the first and the second cladding layers. The waveguide core including an active region adapted to generate light based on interband transitions. The light being generated defines the lasing wavelength or the lasing frequency. The first refractive index and the second refractive index are lower than the waveguide core refractive index. The first cladding layer and/or the second cladding layers can also be formed using a metal.
Insulation piercing connectors and methods and connections including same
An electrical connector for mechanically and electrically connecting first and second cables, each including an elongate electrical conductor covered by an insulation layer, includes a connector body, an electrically conductive first insulation piercing feature on the connector body, an electrically conductive second insulation piercing feature on the connector body and electrically connected to the first insulation piercing feature, and a compression mechanism. The first insulation piercing feature is configured to pierce through the first insulation layer and electrically engage the first electrical conductor. The second insulation piercing feature is configured to pierce through the second insulation layer and electrically engage the second electrical conductor. The compression mechanism is configured and operable to apply a clamping load along a clamping axis extending through both of the first and second electrical conductors to force the first and second insulation piercing features into electrical engagement with the first and second electrical conductors, respectively.
Shield shell and shield connector
The present invention concerns a shield shell (70) to be connected to a case made of metal and including a shell main body (71) with a case connecting portion (74) to be connected to the case, a single collective shield connecting portion (72) provided on the shell main body (71) and formed into an elliptical tubular shape, and a plurality of individual-core shield connecting portions (77) provided on the shell main body (71) and formed into a cylindrical shape. The present invention may also concern a shield connector (10) including the shield shell (70), a housing (40) to be held onto the shield shell (70), wires with terminal fittings (20) inserted through the interior of the housing (40), and a single braided wire (90) connected to the single collective shield connecting portion (72) of the shield shell (70).
Clip and latch substitution device for modular plugs
A clip and latch device including: a mount including a securing base defining a plane, a rear end and a front end, a clip base mounted at the rear end of the securing base, a clip having a normally downward angle from the clip base towards the front end of the securing base, and a latch which terminates at the clip and normally extending so that the latch reaches to at least the plane of the securing base. The clip and latch device can be used for modular male plug, for example a male RJ plug, which may be with or without a broken tab or latch.
Coaxial cable connector with integral RFI protection
A coaxial cable connector for coupling an end of a coaxial cable to a terminal is disclosed. The connector has a coupler adapted to couple the connector to a terminal, a body assembled with the coupler and a post assembled with the coupler and the body. The post is adapted to receive an end of a coaxial cable. The post has an integral contacting portion that is monolithic with at least a portion of the post. When assembled the coupler and post provide at least one circuitous path resulting in RF shielding such that RF signals external to the coaxial cable connector are attenuated, such that the integrity of an electrical signal transmitted through coaxial cable connector is maintained regardless of the tightness of the coupling of the connector to the terminal.
Headset assemblies and headset connectors are provided. Headset connectors can include a magnetic mating face and a plurality of electrical contacts disposed within the mating face. Engaging assemblies and engaging connectors are also provided. The engaging connectors can include a housing having a mating side, a magnetic array structure, and a plurality of spring biased contact members. The magnetic array structure can be fixed within the housing and house a plurality of spring biased contact members. The spring biased contact members can include tips that extend out of the mating side. The tips can electrically couple with electrical contacts in a headset connector.
Crimped terminal attached aluminum electric wire
A crimped terminal attached aluminum electric wire includes an aluminum electric wire that includes a conductor part made of aluminum or aluminum alloy and an insulative coating part which surrounds the periphery of the conductor part, and a crimped terminal that is crimped to the conductor part which is exposed by removing the insulative coating part at an end of the aluminum electric wire. The crimped terminal includes a conductor crimping part which is crimped to the exposed conductor part, and an end side conductor crimping part which is formed at an end at the side of the crimped terminal to which the aluminum electric wire is connected, and which is crimped to the conductor part at a radial compression rate which is smaller than that at which the conductor part is crimped by the conductor crimping part.
A cover-fitted connector includes a connector housing that houses a terminal connected to a terminal of an electric wire, and a cover that covers the electric wire pulled out from the connector housing. The connector housing includes a connector housing body, and a connecting portion connected to the connector housing body. The cover includes a cover body, a connected portion connected with the connecting portion at a time of mating the cover with the connector housing, and a cutout portion having an end portion positioned at a boundary between the connector housing body to cover the connecting portion and configured to expose the connector housing body outside the cover at the time of mating the cover with the connector housing.
Connector and mating connector
An electrical connector is configured to be electrically coupled to a mating connector. The connector includes a housing having a contact chamber and a connector face. The connector further includes a contact connector element accommodated in the contact chamber. The contact connector element includes a primary locking member configured to latch with the contact chamber. The connector also includes a secondary locking member assembled to the housing via the connector face. The secondary locking member is configured to interlock the contact connector element in the housing.
Connector and housing
A connector (10) includes terminals (40) each of which has a plate-like connecting portion (42) formed with a nut mounting hole (43). A housing (20) is formed with terminal accommodating portions (21) capable of accommodating the terminals (40). Nuts (44) with bolt holes (45) are mounted integrally on the connecting portion (42) so that each bolt hole (45) coaxially communicates with the nut mounting hole (43). Locking lances (29) are formed in the housing (20) and retain the connecting portions (42) by locking outer parts of the nuts (44) from behind. Front stops (23) are formed in the terminal accommodating portion (21) and stop the connecting portion (42) at a front end position by locking projections (47) formed on the terminal (40) to project from the terminal (40) from front.
Contact element, in particular a solder tab and photovoltaic junction box with contact element, in particular a solder tab
A contact element (1) for providing an electrical contact between a first electrical device (7) and a second electrical device, wherein the contact element (1) comprises a first contact portion (2) to be electrically connected to the first electrical device (7) and a second contact portion (4) to be connected to the second electrical device. The first contact portion (2) is arranged at a distance (D) to the second contact portion (4), whereby the contact element (1) comprises further an adjustment portion (3) connecting said first and second contact portion (2, 4), wherein with said adjustment portion (3) said distance (D) between the first contact portion (2) and the second contact portion (4) is adjustable.
Electrical zero-force plug connector
An electrical zero-force plug connector includes a socket housing holding sleeve contacts movable between opened and closed positions and an assembly connector having connector pins. A bolt is movable against the socket housing from an unlocked position into a locked position after the socket housing and the assembly connector are joined. A slider is connected to the bolt and the sleeve contacts such that as the bolt moves the slider moves through a seal of the socket housing and moves the sleeve contacts. While the socket housing and the assembly connector are joined and the bolt is unlocked, the sleeve contacts are opened and the connector pins are inserted into the sleeve contacts. While the socket housing and the assembly connector are joined and the bolt is locked, the sleeve contacts are closed and the connector pins inserted into the sleeve contacts are held therein.
Actively cooled electrical connection
A method and electrical connection for providing electrical power is disclosed. The electrical connection comprises an electrical connector connected to an electrical conductor assembly. A current greater than a rated current capacity of at least one of the electrical connector and electrical conductor assembly may be passed through the electrical conductor assembly and electrical connector. The electrical connector and electrical conductor may be actively cooled with a flow of heat transfer medium flowing substantially along a length of the electrical conductor assembly and through the electrical connector to increase the current capacity of the electrical connection.
Split bolt electrical connector assembly
An electrical connector includes a split bolt having a base and first and second outwardly extending legs. A conductor receiving channel is formed between the legs. A nut threadably engages the legs and has upper and lower surfaces and an opening through it. A pressure bar member is movably received in the conductor receiving channel. A head of the pressure bar member contacts the lower surface of the nut and a body of the pressure bar member extends through the opening in the nut. A spacer is disposed in the conductor receiving channel between the base and the head of the pressure bar member.
Dual-band folded meta-inspired antenna with user equipment embedded wideband characteristics
Embodiments of a folded meta-inspired antenna for dual-band operation and user equipment for dual-band operation in a wireless network are generally described herein. In some embodiments, the folded meta-inspired antenna may include first and second conductive layers disposed on opposite sides of a substrate to provide a wideband distributed structure comprising a plurality of high-Q resonances resulting from, at least in part, metamaterial-based loading. Conductive material on the first side of the substrate is arranged around a central longitudinal slot coupled with a plurality of perpendicular slots. For dual-band operation, the folded meta-inspired antenna may operate as a folded monopole at a higher frequency band and operate as a slot-type radiator at a lower frequency band. The plurality of resonances may cause the folded meta-inspired antenna to achieve broader bandwidth at both lower and higher frequency bands.
Circular polarized antenna structure
Disclosed is a circular polarized antenna structure, comprising a main body, a protruding portion and a stopping portion, the stopping portion being formed between the main body and the protruding portion. The circular polarized antenna may be disposed to penetrate through the upper and lower surfaces of a base that has a radiation conductor and a grounding conductor disposed thereon respectively, the stopping portion abutting against the lower surface of the base to prevent the main body from coming loose and being detached from the base even if the protruding portion is subjected to a great impact or squeezing pressure caused by an external force coming from the lower surface upwards.
Customizable antenna feed structure
Custom antenna structures may be used to compensate for manufacturing variations in electronic device antennas. An antenna may have an antenna feed and conductive structures such as portions of a peripheral conductive electronic device housing member. The custom antenna structures compensate for manufacturing variations that could potentially lead to undesired variations in antenna performance. The custom antenna structures may make customized alterations to antenna feed structures or conductive paths within an antenna. An antenna may be formed from a conductive housing member that surrounds an electronic device. The custom antenna structures may be formed from a printed circuit board with a customizable trace. The customizable trace may have a contact pad portion on the printed circuit board. The customizable trace may be customized to connect the pad to a desired one of a plurality of contacts associated with the conductive housing member to form a customized antenna feed terminal.
Antenna for reception of circularly polarized satellite radio signals
An antenna for receiving circularly polarized satellite radio signals has a conductive base surface and at least one a conductor loop oriented horizontally above the base surface by a height h. The conductor loop is configured as a polygonal or circular closed ring line radiator. The ring line radiator forms a resonant structure that is electrically excited so that the current distribution of a running line wave in a single rotation direction occurs on the ring line, wherein the phase difference of which, over one revolution, amounts to essentially 2π. A vertical radiator extends between the conductive base surface and the circumference of the ring line radiator. The height h is smaller than ⅕ of the free-space wavelength λ.
An antenna which operates in a plurality of frequency bands includes a feeding point, a first conductor which is connected to the feeding point, and at least two second conductors which are branched from the first conductor, have a linear shape, and include open ends as ends on a side opposite to the first conductor. The open ends of the two second conductors face in almost the same direction substantially parallel to a side closest to the feeding point out of the sides of an antenna region. The two second conductors include a part at which the distance between the two conductors at a portion parallel to the side is a first distance, and another part at which the distance is a second distance shorter than the first distance, and are electromagnetically coupled at, at least the other part.
Micromachined millimeter-wave frequency scanning array
A frequency scanning traveling wave antenna array is presented for Y-band application. This antenna is a fast wave leaky structure based on rectangular waveguides in which slots cut on the broad wall of the waveguide serve as radiating elements. A series of aperture-coupled patch arrays are fed by these slots. This antenna offers 2° and 30° beam widths in azimuth and elevation direction, respectively, and is capable of ±25° beam scanning with frequency around the broadside direction. The waveguide can be fed through a membrane-supported cavity-backed CPW which is the output of a frequency multiplier providing 230˜245 GHz FMCW signal. This structure can be planar and compatible with micromachining application and can be fabricated using DRIE of silicon.
Frequency-scalable transition for dissimilar media
A frequency-scalable device for interfacing a planar medium with a coaxial medium to propagate a primary signal, the device comprises a transition medium connectable between the coaxial medium and the planar medium. The transition medium suppresses excitation of secondary electrical signals by the primary signal when the primary signal is propagated through the transition medium at a frequency below an upper limit.
Miniature tunable filter
Described is a miniature tunable filter, comprising at least two adjacent coaxial-type resonators coupled to one another. Each coaxial-type resonator comprises a metal-coated ceramic dielectric cavity having a tuning rod passage formed therethrough. A tuning rod is inserted through the tuning rod passage, such that the miniature tunable filter is tuned by moving the tuning rod into and out of the tuning rod passage of the ceramic dielectric cavity. A low impedance coaxial section surrounds at least a portion of the tuning rod to create an effective microwave short-circuit at a resonant frequency of the miniature tunable filter, which results in very wide tuning and low insertion loss. In a desired aspect, the tuning rod is a solid metal tuning rod. The combination of a solid metal tuning rod with a ceramic coaxial-type resonator results in high radio frequency power handling.
RF window assembly comprising a ceramic disk disposed within a cylindrical waveguide which is connected to rectangular waveguides through elliptical joints
A high-power microwave RF window is provided that includes a cylindrical waveguide, where the cylindrical waveguide includes a ceramic disk concentrically housed in a central region of the cylindrical waveguide, a first rectangular waveguide, where the first rectangular waveguide is connected by a first elliptical joint to a proximal end of the cylindrical waveguide, and a second rectangular waveguide, where the second rectangular waveguide is connected by a second elliptical joint to a distal end of the cylindrical waveguide.
Battery pack with protective circuit board and electric bicycle including the battery pack
To provide a battery pack that is less likely to be affected by vibrations, shocks and the like and has a stable characteristic, and an electric bicycle that uses the battery pack.A battery pack includes: a battery protective member having a first plate section and a second plate section which is integrally connected to both edge portions of a width direction of the first plate section and extends substantially in a direction perpendicular to both surfaces of the first plate section, wherein the flat batteries are placed on the first plate section; and a protective circuit board. A moistureproof film for the protective circuit board is formed using a plurality of film forming materials different in viscosity, hardness, and thixotropic properties.
Composition for forming solid electrolyte layer, method for forming solid electrolyte layer, solid electrolyte layer, and lithium ion secondary battery
A composition for forming a solid electrolyte layer for use in the formation of a solid electrolyte layer of a lithium ion secondary battery contains first particles made of a lanthanum titanate and second particles made of a lithium titanate. It is preferable that the first particles have an average particle size of 50 nm or more and 300 nm or less. It is preferable that the second particles have an average particle size of 10 nm or more and 50 nm or less.
Polyoxometalate flow battery
Flow batteries including an electrolyte of a polyoxometalate material are disclosed herein. In a general embodiment, the flow battery includes an electrochemical cell including an anode portion, a cathode portion and a separator disposed between the anode portion and the cathode portion. Each of the anode portion and the cathode portion comprises a polyoxometalate material. The flow battery further includes an anode electrode disposed in the anode portion and a cathode electrode disposed in the cathode portion.
Planar configuration air breathing polymer electrolyte electrical device including support plate and bearing plate
The present invention relates to a fuel cell device for use in planar configuration air breathing polymer electrolyte electrochemical devices and to a support plate, gas connection means and clamping means for use in the fuel cell device. The electrochemical device may be use as a fuel cell or an electrolyzer. In particular it relates to a planar configuration air breathing polymer electrolyte electrochemical device including at least two fuel cells arranged in series connection on one surface of a support plate, characterized in that the fuel cells (2′, 2″, 2′″; 943) are arranged to press against a bearing plate (218; 942), which has an area that is larger than the area of the support plate.
Method of enhancing electrodes
One embodiment includes a method of forming a hydrophilic particle containing electrode including providing a catalyst; providing hydrophilic particles suspended in a liquid to form a liquid suspension; contacting said catalyst with said liquid suspension; and, drying said liquid suspension contacting said catalyst to leave said hydrophilic particles attached to said catalyst.
High performance, high durability non-precious metal fuel cell catalysts
This invention relates to non-precious metal fuel cell cathode catalysts, fuel cells that contain these catalysts, and methods of making the same. The fuel cell cathode catalysts are highly nitrogenated carbon materials that can contain a transition metal. The highly nitrogenated carbon materials can be supported on a nanoparticle substrate.
Anti-curl copper foil
The present disclosure relates to an improved coated copper foil that exhibits anti-curl and anti-wrinkle properties; and to methods for manufacturing the foil. Typically, the copper foil of the instant disclosure has: (a) a shiny side; (b) a matte side, wherein the matte side has an MD gloss in the range of 330 to 620; (c) a difference in surface roughness (Rz) between the shiny side and the matte side in the range of 0.3 to 0.59 μm; and (d) a difference in tensile strength in the transverse direction of 1.2 kgf/mm2 or less.
Electrode for lithium secondary battery and lithium secondary battery including the same
An electrode for a lithium secondary battery includes an electrode active material, a conductive agent, and a polyurethane-based compound, and has pores having an average diameter of about 2 to about 20 nm. A lithium secondary battery includes the electrode.
Negative electrode active material comprising spinel lithium titanate, electrical storage device, and method for producing negative electrode active material
A negative-electrode active material disclosed herein contains a lithium titanate having a spinel structure, and satisfies the relationship B×P<50, where B is a specific surface (unit: m2/g) of the lithium titanate as measured by a BET technique; and P is obtained by immersing 1 g of the lithium titanate in 50 cm3 of redistilled water and determining a pH of the redistilled water after 30 minutes of agitation.
Positive electrode active material
The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2 (I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.
Method for manufacturing a battery terminal plate
The present invention relates to an apparatus and method for manufacturing a battery terminal plate, and more particularly relates to an apparatus and method for manufacturing a battery terminal plate, in which a terminal plate for a secondary battery, such as a middle or large sized Lithium ion battery, which is applied to electric vehicles, hybrid vehicles, plug-in hybrid vehicles, solar cells, electric tools and so on, is processed by not pressing but forging, a shifting and supplying apparatus for shifting a material to be processed in each forming and processing step may be moved by the shortest distance through a shift-return method (one step shift-return), the material is previously processed by punching so as not to satisfy a standard of a design, and the firstly processed material is secondly processed to satisfy the standard.
Single fiber layer structure of micron or nano fibers and multi-layer structure of micron and nano fibers applied in separator for battery
A single fiber layer structure of micron or nano fibers, and a multi-layer structure of micron and nano fibers are provided. The single fiber layer structure of micron fibers comprises a web of micron fibers and an impregnating resin, and has a pore size of 1 nm-500 nm. The web of micron fibers is formed by plural interweaved micron fibers (D≧1 μm). The single fiber layer structure of nano fibers comprises a web of nano fibers formed by plural interweaved nano fibers (D<1 μm). The multi-layer structure of micron and nano fibers comprises a web of interweaved micron fibers, a web of nano fibers formed by plural nano fibers interweaved on the web of micron fibers, a mixture layer formed by parts of the interweaved nano and micron fibers, and a resin at least impregnating the mixture layer and parts of the micron fibers of the web of micron fibers.
Separators for a lithium ion battery
A separator for use in a lithium ion battery to provide a physical and electrically insulative mechanical barrier between confronting inner face surfaces of a negative electrode and a positive electrode may be formed predominantly of heat-resistant particles. The heat-resistant particles, which have diameters that range from about 0.01 μm to about 10 μm, are held together as a thin-layered, handleable, and unified mass by a porous inert polymer material. The high content of heat-resistant particles amassed between the confronting inner face surfaces of the negative and positive electrodes provides the separator with robust thermal stability at elevated temperatures. Methods for making these types of separators by a phase-separation process are also disclosed.
A rechargeable battery includes an electrode assembly including first electrodes and second electrodes, a casing including a space in which the electrode assembly is embedded, a cap plate combined with the casing, and a first thin film insulating member fused with the casing and surrounding the casing.
Non-aqueous secondary battery, mounted unit, and method for manufacturing non-aqueous secondary battery
A non-aqueous secondary battery includes: a positive-electrode collector layer; a positive-electrode layer formed on one surface of the positive-electrode collector layer; a negative-electrode collector layer; a negative-electrode layer formed on one surface of the negative-electrode collector layer so as to be opposed to the positive-electrode layer; a separator provided between the positive-electrode layer and the negative-electrode layer; and a positive-electrode-side insulating layer and a negative-electrode-side insulating layer respectively formed on another surface of the positive-electrode collector layer and another surface of the negative-electrode collector layer. Circumferential inner surfaces of peripheral edges of the positive-electrode collector layer and the negative-electrode collector layer are joined with a sealing agent including at least a positive-electrode fusion layer, a gas barrier layer, and a negative-electrode fusion layer. The positive-electrode-side insulating layer and/or the negative-electrode-side insulating layer has a battery-side recess provided on a surface.
Organic light-emitting display device and method of manufacturing the same
A method of manufacturing an organic light-emitting display device is provided. A plurality of anodes and an auxiliary electrode are formed on a substrate. The auxiliary electrode is separated from the plurality of the anodes. An organic layer is formed on the plurality of the anodes and the auxiliary electrode. An opening is formed in the organic layer by applying a voltage to the auxiliary electrode. The opening exposes the auxiliary electrode. A cathode is formed on the organic layer and the exposed auxiliary electrode. The cathode is electrically connected to the exposed auxiliary electrode.
Method for fabricating OLED using roll to roll processing
A method for fabricating the OLED including a color conversion layer using roll-to-roll processing is provided. To elaborate, the method for fabricating an OLED comprising: bonding an OLED and an inorganic phosphor to each other through roll-to-roll processing is provided, wherein the inorganic phosphor is provided as a color conversion layer.
Local seal for encapsulation of electro-optical element on a flexible substrate
An electroluminescent display or lighting product incorporates a panel including a collection of distinct light-emitting elements formed on a substrate. A plurality of distinct local seals are formed over respective individual light-emitting elements or groups of light-emitting elements. Each local seal is formed by depositing a low melting temperature glass powder suspension or paste using inkjet technology, and fusing the glass powder using a scanning laser beam having a tailored beam profile. The local seal may be used in conjunction with a continuous thin film encapsulation structure. Optical functions can be provided by each local seal, including refraction, filtering, color shifting, and scattering.
Transparent electrode, method for manufacturing transparent electrode, electronic device, and organic electroluminescence element
A transparent electrode is provided with a nitrogen-containing layer, an electrode layer having silver as the main component thereof, and an aluminum intermediate layer, wherein the aluminum intermediate layer is in contact with the nitrogen-containing layer and the electrode layer and sandwiched between the nitrogen-containing layer and the electrode layer. The nitrogen-containing layer is formed by using a compound containing a nitrogen atom. The effective unshared electron pair content [n/M] of this compound satisfies “3.9×10−3≦[n/M]”, where n is the number of unshared electron pair(s) not involved in aromaticity and not coordinated to metal, among unshared electron pair(s) owned by the nitrogen atom, and M is molecular weight.
Optoelectronic device and method for producing an optoelectronic device
An optoelectronic device, comprising: a first organic functional layer structure; a second organic functional layer structure; and a charge generating layer structure between the first organic functional layer structure and the second organic functional layer structure, wherein the charge generating layer structure comprises: a first electron-conducting charge generating layer; wherein the first electron-conducting charge generating layer comprises or is formed from an intrinsically electron-conducting substance; a second electron-conducting charge generating layer; and an interlayer between first electron-conducting charge generating layer; and second electron-conducting charge generating layer; and wherein the interlayer comprises at least one phthalocyanine derivative.
Light emitting device using graphene quantum dot and organic light emitting device including the same
The present disclosure relates to a light emitting device using a graphene quantum dot, and an organic light emitting device including the same.
Functionalization of sp3 hybridized carbon, silicon and/or germanium surfaces
The invention concerns a method for preparing a grafted material comprising the following steps: a) providing a material which, on its surface, comprises sp3 hybridized carbon, silicon and/or germanium atoms carrying at least one hydrogen atom, and b) contacting in a solvent the material such as provided at step a) with a compound (C) carrying at least one amine function in the unprotonated state, whereby the said compound (C) is grafted onto the said material.
Organic electroluminescent materials and devices
In certain embodiments, the invention provides boron-nitrogen heterocycles having Formula (I): wherein one of the E1 and E2 is N, and one of the E1 and E2 is B; wherein E3 and E4 is carbon; wherein ring Y and ring Z are 5-membered or 6-membered carbocyclic or heterocyclic aromatic ring fused to ring X; wherein R2 and R3 represent mono, di, tri, tetra substitutions or no substitution; wherein R2 and R3 are each independently selected from various substituents; and wherein any two adjacent R2, and R3 are optionally joined to form a ring, which may be further substituted. In certain embodiments, the invention provides devices, such as organic light emitting devices, that comprise such boron-nitrogen heterocycles.
Organic electroluminescent compounds, layers and organic electroluminescent device using the same
The present invention relates to a novel organic electroluminescent compound, layer and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic light emitting layer and/or device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
Integrated circuits with hall effect sensors and methods for producing such integrated circuits
Integrated circuits with a Hall effect sensor and methods for fabricating such integrated circuits are provided. The method includes forming a buried plate layer within a substrate and overlying a substrate base, where the buried plate layer is doped with an “N” type dopant. A cover insulating layer if formed overlying the buried plate layer, and a plurality of contact points are formed adjacent to the cover insulating layer.
Method of manufacturing semiconductor device
According to one embodiment, a method of manufacturing a semiconductor device includes forming a silicon nitride layer on a metal layer, forming a plasma of a gas mixture of carbon oxide and oxygen, and selectively etching the silicon nitride layer with respect to the metal layer by using the plasma of the gas mixture.
Laminated piezoelectric element and multi-feed detection sensor
A laminated piezoelectric element that includes a piezoelectric element layer and a matching layer. The piezoelectric element layer is configured to have a plurality of piezoelectric layers and a plurality of electrode layers laminated together. The matching layer is laminated on the piezoelectric element layer, and is different in acoustic impedance from the piezoelectric element layer. When Vp represents the acoustic velocity in the piezoelectric element layer, Vm represents the acoustic velocity in the matching layer, Tp represents the thickness dimension of the piezoelectric element layer, and Tm represents the thickness dimension of the matching layer, Vp/Vm=Tp/Tm holds. Further, when W represents the dimension of the laminated piezoelectric element in the width direction, Tp+Tm>W holds.
Piezoelectronic transistor with co-planar common and gate electrodes
A method of forming a piezoelectronic transistor (PET), the PET, and a semiconductor device including the PET are described. The method includes forming a piezoelectric (PE) element with a trench and forming a pair of electrodes on the PE element in a coplanar arrangement in a first plane, both of the pair of electrodes being on a same side of the PE element. The method also includes forming a piezoresistive (PR) element above the pair of electrodes and forming a clamp above the PR element. Applying a voltage to the pair of electrodes causes displacement of the PE element perpendicular to the first plane.
Piezoelectric actuator device and method for manufacturing same
A piezoelectric actuator device includes a vibrator and a driver to vibrate the vibrator. The vibrator includes a lower vibration layer configured to vibrate and an upper vibration layer coupled to an upper surface of the lower vibration layer and configured to vibrate together with the lower vibration layer. The driver includes an upper electrode layer on a lower surface of the lower vibration layer, a piezoelectric layer on a lower surface of the upper electrode layer, and a lower electrode layer on a lower surface of the piezoelectric layer. The lower vibration layer of the vibrator is made of organic material. The upper vibration layer is mainly made of inorganic material. The lower vibration layer has a smaller longitudinal elastic modulus than the upper vibration layer. The piezoelectric actuator device has a large resistance to disturbance vibrations and a large warping amount of the vibrator without increasing power consumption.
Textile-based stretchable energy generator
A textile-based stretchable energy generator is provided. The energy generator includes: flexible and stretchable first and second electrode substrates; and an energy generation layer, which is provided between the first and second electrode substrates and includes a dielectric elastomer for generating electrical energy from a transformation thereof.
Methods for making low resistivity joints
Method for joining wires using low resistivity joints is provided. More specifically, methods of joining one or more wires having superconductive filaments, such as magnesium diboride filaments, are provided. The wires are joined by a low resistivity joint to form wires of a desired length for applications, such in medical imaging applications.
Thermoelectric material with improved in figure of merit and method of producing same
A nanocomposite including: a thermoelectric material nanoplatelet; and a metal nanoparticle disposed on the thermoelectric material nanoplatelet.
Light emitting diode package
An embodiment of the invention provides a light emitting diode package. The light emitting diode package includes at least three light emitting diode chips; first leads comprising at least three chip mounting sections on which the at least three light emitting diode chips are mounted, respectively; second leads separated from the first leads and connected to the light emitting diode chips via wires, respectively; and a substrate having the first leads and the second leads formed thereon, wherein the at least three chip mounting sections are arranged around a center of the substrate through which an optical axis of the light emitting diode package passes.
Luminous devices, packages and systems containing the same, and fabricating methods thereof
The present invention is directed to a vertical-type luminous device and high throughput methods of manufacturing the luminous device. These luminous devices can be utilized in a variety of luminous packages, which can be placed in luminous systems. The luminous devices are designed to maximize light emitting efficiency and/or thermal dissipation. Other improvements include an embedded zener diode to protect against harmful reverse bias voltages.
Light emitting diode package
An LED package includes a lead frame, a housing part, and a lead heat dissipating part. The lead frame includes a first lead mounting an LED chip and a second lead spaced apart from the first lead. The housing part covers a portion of the lead frame and includes an opening part for exposing the LED chip, a first side corresponding to a support side contacting the first lead and the second lead, and a second side opposite to the first side. The lead heat dissipating part is extended from the first lead and exposed partially to the first side of the housing part. Herein, the first side of the housing part is thicker than the second side.
Light emitting device, resin package, resin-molded body, and methods for manufacturing light emitting device, resin package and resin-molded body
A method of manufacturing a light emitting device having a resin package which provides an optical reflectivity equal to or more than 70% at a wavelength between 350 nm and 800 nm after thermal curing, and in which a resin part and a lead are formed in a substantially same plane in an outer side surface, includes a step of sandwiching a lead frame provided with a notch part, by means of an upper mold and a lower mold, a step of transfer-molding a thermosetting resin containing a light reflecting material in a mold sandwiched by the upper mold and the lower mold to form a resin-molded body in the lead frame and a step of cutting the resin-molded body and the lead frame along the notch part.
Solid state lighting component package with reflective polymer matrix layer
A solid state lighting component comprising a layer having high reflectivity and/or scattering properties, the layer positioned about a solid state lighting component, and manufacturing methods of making same is disclosed. A method of increasing the luminous flux of the solid state lighting component, is also provided.
Side-emitting optical coupling device
An LED package includes a LED structure that outputs light in a pattern about an axis and an optical coupling device with a central axis. The coupling device is positioned relative to the LED structure and accepts light from the LED. The coupling device includes a first dielectric interface surface that is substantially cylindrical with respect to the central axis, and a reflecting surface. The first dielectric interface surface accepts a first portion of light from the LED structure and directs it toward the reflecting surface. The reflecting surface accepts the light from the first dielectric interface surface and directs it toward the first dielectric interface surface in a direction substantially perpendicular to the central axis.
Light emitting device and method of manufacturing the same
There is provided a light emitting device including a light emitting element, a covering member for covering a side surface of the light emitting element, and a light-transmissive member disposed on upper surfaces in a light emitting direction of the light emitting element and the covering member and having an end face on substantially the same plane as an end face of the covering member, wherein the covering member has a recess portion or a convex portion on the upper surface, a light emitting surface of the light emitting element and an upper surface other than the recess portion or the convex portion of the covering member are arranged on substantially the same plane, and the light-transmissive member is provided in contact with the recess portion or the convex portion.
Light-emitting element having an optical function film including a reflection layer
A light-emitting element includes a light-emitting layer, and an optical function film. The light-emitting layer is configured to include a first plane with a first electrode, a second plane with a second electrode, and a circumferential plane connecting the first and second planes, the second plane being opposing to the first plane, and the light-emitting layer being made of a semiconductor. The optical function film is configured to include a reflection layer being able to reflect light coming from the light-emitting layer, the reflection layer being provided with first and second regions, the first region covering the second plane and the circumferential plane, the second region protruding from the first region to an outside of the light-emitting layer to expose an end plane thereof.
Light emitting diode and method of fabricating the same
An exemplary embodiment discloses a light emitting diode including a first light emitting cell and a second light emitting cell disposed on a substrate, the first light emitting cell and the second light emitting cell being spaced apart from each other. The light emitting diode also includes a first zinc oxide (ZnO) layer disposed on the first light emitting cell, the first ZnO layer being electrically connected to the first light emitting cell. The light emitting diode also includes a current blocking layer disposed between a portion of the first light emitting cell and the first ZnO layer, an interconnection electrically connecting the first light emitting cell and the second light emitting cell, and an insulation layer disposed between the interconnection and a side surface of the first light emitting cell. The current blocking layer and a first side of insulation layer are connected to each other.
Light-emitting diode and method for manufacturing the same
The disclosure provides a light-emitting diode and a method for manufacturing the same. The light-emitting diode comprises a N-type metal electrode, a N-type semiconductor layer contacted with the N-type metal electrode, a P-type semiconductor layer, a light-emitting layer interposed between the N-type semiconductor layer and the P-type semiconductor layer, a low-contact-resistance material layer positioned on the P-type semiconductor layer, a transparent conductive layer covered the low-contact-resistance material layer and the P-type semiconductor layer, and a P-type metal electrode positioned on the transparent conductive layer.
Light emitting device and light emitting device package
Disclosed are a light emitting device and a light emitting device package. The light emitting device includes a light emitting structure including a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, and a second conductive semiconductor layer on the active layer, an adhesive layer contacting a top surface of the first conductive semiconductor layer, a first electrode contacting a top surface of the first conductive semiconductor and a top surface of the adhesive layer, and a second electrode contacting the second conductive semiconductor layer, wherein the adhesive layer contacting the first electrode is spaced apart from the second electrode.
Solid state lighting devices with dielectric insulation and methods of manufacturing
Solid state lighting devices and associated methods of manufacturing are disclosed herein. In one embodiment, a solid state lighting device includes a first semiconductor material, a second semiconductor material spaced apart from the first semiconductor material, and an active region between the first and second semiconductor materials. The solid state lighting device also includes an indentation extending from the second semiconductor material toward the active region and the first semiconductor material and an insulating material in the indentation of the solid state lighting structure.
Ultraviolet reflective rough adhesive contact
A device including a first semiconductor layer and a contact to the first semiconductor layer is disclosed. An interface between the first semiconductor layer and the contact includes a first roughness profile having a characteristic height and a characteristic width. The characteristic height can correspond to an average vertical distance between crests and adjacent valleys in the first roughness profile. The characteristic width can correspond to an average lateral distance between the crests and adjacent valleys in the first roughness profile.
Semiconductor light emitting element
According to one embodiment, a semiconductor light emitting element includes a light emitting layer, a current spreading layer of a first conductivity type, and a pad electrode. The light emitting layer is capable of emitting light. The current spreading layer has a first surface and a second surface. The light emitting layer is disposed on a side of the first surface. A light extraction surface having convex structures of triangle cross-sectional shape and a flat surface which is a crystal growth plane are included in the second surface. The pad electrode is provided on the flat surface. One base angle of the convex structure is 90 degrees or more.
Nano-structured light-emitting devices
A nano-structured light-emitting device includes a plurality of light-emitting nanostructures each having a resistant layer disposed thereon. The device includes a first semiconductor layer of a first conductivity type, and a plurality of nanostructures disposed on the first semiconductor layer. Each nanostructure includes a nanocore, and an active layer and a second semiconductor layer of a second conductivity type that enclose surfaces of the nanocores. An electrode layer encloses and covers the plurality of nanostructures A plurality of resistant layers are disposed on the electrode layer and each corresponds to a respective nanostructure of the plurality of nanostructures.
Semiconductor material doping
A solution for designing and/or fabricating a structure including a quantum well and an adjacent barrier is provided. A target band discontinuity between the quantum well and the adjacent barrier is selected to coincide with an activation energy of a dopant for the quantum well and/or barrier. For example, a target valence band discontinuity can be selected such that a dopant energy level of a dopant in the adjacent barrier coincides with a valence energy band edge for the quantum well and/or a ground state energy for free carriers in a valence energy band for the quantum well. Additionally, a target doping level for the quantum well and/or adjacent barrier can be selected to facilitate a real space transfer of holes across the barrier. The quantum well and the adjacent barrier can be formed such that the actual band discontinuity and/or actual doping level(s) correspond to the relevant target(s).
Method of conditioning the CdTe layer of CdTe thin-film solar cells
The invention relates to a method for conditioning the CdTe layer of CdTe thin-film solar cells without the use of CdCl2. Calcium tetrachlorozincate (CaZnCl4) is to be used instead of CdCl2 for activation, and the process parameters that have proven themselves over time are to be kept. The method involves the activation of the CdTe layer of semi-finished thin-film CdTe solar cells; calcium tetrachlorozincate is applied to the CdTe layer (4) and the semi-finished thin-film CdTe solar cell subsequently undergoes a heat treatment. The calcium tetrachlorozincate layer is preferably applied via methods from the prior art, for instance roller coating with an aqueous or methanolic salt solution, spraying on an aqueous or methanolic salt solution, an aerosol coating or a dipping bath.
Display device and manufacturing method thereof
A display device includes: a first substrate; a photo transistor on the first substrate; and a switching transistor connected to the photo transistor. The photo transistor includes a light blocking film on the first substrate, a first gate electrode on the light blocking film and in contact with the light blocking film, a first semiconductor layer on the first gate electrode and overlapping the light blocking film, and a first source electrode and a first drain electrode on the first semiconductor layer. The switching transistor includes a second gate electrode on the first substrate, a second semiconductor layer on the second gate electrode and overlapping the second gate electrode, and a second source electrode and a second drain electrode on the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are at a same layer of the display device, and each includes crystalline silicon germanium.
Ge—Si P-I-N photodiode with reduced dark current and fabrication method thereof
Various embodiments of a germanium-on-silicon (Ge—Si) photodiode are provided along with the fabrication method thereof. In one aspect, a Ge—Si photodiode includes a doped bottom region at the bottom of a germanium layer, formed by thermal diffusion of donors implanted into a silicon layer. The Ge—Si photodiode further includes a doped sidewall region of Ge mesa formed by ion implantation. Thus, the electric field is distributed in the intrinsic region of the Ge—Si photodiode where there is low dislocation density. The doped bottom region and sidewall region of the Ge layer prevent electric field from penetrating into the Ge—Si interface and Ge mesa sidewall region, where a large amount of dislocations are distributed. This design significantly suppresses dark current.
Photodetector, liquid crystal display device, and light-emitting device
One embodiment of the present invention includes a first light-blocking layer and a second light-blocking layer which are over a light-transmitting substrate, a first photodiode over the first light-blocking layer, a second photodiode over the second light-blocking layer, a first color filter covering the first photodiode, a second color filter covering the second photodiode, and a third light-blocking layer formed using the first color filter and the second color filter and disposed between the first photodiode and the second photodiode.
Polyimide resin composition for use in forming reverse reflecting layer in photovoltaic cell and method of forming reverse reflecting layer in photovoltaic cell used therewith
Disclosed are a method of forming a back reflection layer in a solar cell, a composition used therefor, and a solar cell having a back reflection layer formed by the method, which layer has superior heat-resistance and various types of durabilities, and can contribute to improving the conversion rate of solar cells and reliability during long-term use, and which method can form a back reflection layer in a solar cell easily and at low cost. The polyimide resin composition for use in forming a back reflection layer in a solar cell includes an organic solvent, a polyimide resin dissolved in the organic solvent, and light-reflecting particles dispersed in the organic solvent.
Solid-state imaging device and method of manufacturing the solid-state imaging device
A solid-state imaging device in which a plurality of pixels are two-dimensionally arranged includes a silicon layer; a plurality of photodiodes which are formed in the silicon layer to correspond to the pixels and generate signal charges by performing photoelectric conversion on incident light; and a plurality of color filters formed above the silicon layer to correspond to the plurality of the pixels. A protrusion is formed in a region on a side of the silicon layer between adjacent ones of the color filters wherein the protrusion has a refractive index lower than refractive indices of the adjacent ones of the color filters and, each of the color filters is in contact with the adjacent ones of the color filters, above the protrusion.
Method for forming a photo-active layer of the solar cell
The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
Solar cell and paste composition for rear electrode of the same
A paste composition for a rear electrode of a solar cell according to the embodiment includes conductive powder; an organic vehicle; and an additive including silicon or a metal.
Semiconductor chip package and method for manufacturing thereof
Disclosed herein is a semiconductor chip package, which includes a semiconductor chip, a plurality of vias, an isolation layer, a redistribution layer, and a packaging layer. The vias extend from the lower surface to the upper surface of the semiconductor chip. The vias include at least one first via and at least one second via. The isolation layer also extends from the lower surface to the upper surface of the semiconductor chip, and part of the isolation layer is disposed in the vias. The sidewall of the first via is totally covered by the isolation layer while the sidewall of the second via is partially covered by the isolation layer. The redistribution layer is disposed below the isolation layer and fills the plurality of vias, and the packaging layer is disposed below the isolation layer.
Schottky barrier diode and method of manufacturing the same
A Schottky barrier diode includes: an n− type epitaxial layer disposed on a first surface of an n+ type silicon carbide substrate; a first p+ region disposed on the n− type epitaxial layer; an n type epitaxial layer disposed on the n− type epitaxial layer and the first p+ region; a second p+ region disposed on the n type epitaxial layer, and being in contact with the first p+ region; a Schottky electrode disposed on the n type epitaxial layer and the second p+ region; and an ohmic electrode disposed on a second surface of the n+ type silicon carbide substrate. Also, the first p+ region has a lattice shape including a plurality of vertical portions and horizontal portions connecting both ends of the respective vertical portions to each other.
An integrated circuit including a Schottky diode, and a method of making the same. The diode includes an active region bordered by an isolation region in a semiconductor substrate of the integrated circuits, a first electrode having a metal contact provided on a surface of the active region, and a second electrode having a silicide contact also provided on the surface of the active region.
Semiconductor device and method for manufacturing the same
In a semiconductor device including a transistor including a gate electrode formed over a substrate, a gate insulating film covering the gate electrode, a multilayer film overlapping with the gate electrode with the gate insulating film provided therebetween, and a pair of electrodes in contact with the multilayer film, a first oxide insulating film covering the transistor, and a second oxide insulating film formed over the first oxide insulating film, the multilayer film includes an oxide semiconductor film and an oxide film containing In or Ga, the oxide semiconductor film has an amorphous structure or a microcrystalline structure, the first oxide insulating film is an oxide insulating film through which oxygen is permeated, and the second oxide insulating film is an oxide insulating film containing more oxygen than that in the stoichiometric composition.
A semiconductor device with favorable electrical characteristics is provided. The semiconductor device includes an insulating layer, a semiconductor layer over the insulating layer, a source electrode layer and a drain electrode layer electrically connected to the semiconductor layer, a gate insulating film over the semiconductor layer, the source electrode layer, and the drain electrode layer, and a gate electrode layer overlapping with part of the semiconductor layer, part of the source electrode layer, and part of the drain electrode layer with the gate insulating film therebetween. A cross section of the semiconductor layer in the channel width direction is substantially triangular or substantially trapezoidal. The effective channel width is shorter than that for a rectangular cross section.
Semiconductor device and manufacturing method thereof
One object of the present invention is to provide a structure of a transistor including an oxide semiconductor in a channel formation region in which the threshold voltage of electric characteristics of the transistor can be positive, which is a so-called normally-off switching element, and a manufacturing method thereof. A second oxide semiconductor layer which has greater electron affinity and a smaller energy gap than a first oxide semiconductor layer is formed over the first oxide semiconductor layer. Further, a third oxide semiconductor layer is formed to cover side surfaces and a top surface of the second oxide semiconductor layer, that is, the third oxide semiconductor layer covers the second oxide semiconductor layer.
Manufacturing method of semiconductor device
A transistor using an oxide semiconductor, which has good on-state characteristics is provided. A high-performance semiconductor device including the transistor capable of high-speed response and high-speed operation is provided. The transistor includes the oxide semiconductor film including a channel formation region and low-resistance regions in which a metal element and a dopant are included. The channel formation region is positioned between the low-resistance regions in the channel length direction. In a manufacturing method of the transistor, the metal element is added by heat treatment performed in the state where the oxide semiconductor film is in contact with a film including the metal element and the dopant is added through the film including the metal element by an implantation method so that the low resistance regions in which a metal element and a dopant are included are formed.
Dual-mode transistor devices and methods for operating same
A dual-mode transistor structure comprises a semiconductor body. The semiconductor body of the device includes a channel region, a p-type terminal region (operable as a source or drain) adjacent a first side of the channel region and an n-type terminal region (operable as a source or drain) adjacent a second side of the channel region. A gate insulator is disposed on a surface of the semiconductor body over the channel region. A gate is disposed on the gate insulator over the channel region. A first assist gate is disposed on a first side of the gate, and a second assist gate is disposed on a second side of the gate. Optionally, a back gate can be included beneath the channel region. Biasing the assist gates can be used to select n-channel or p-channel modes in a single device.
FinFET and method for manufacturing the same
A method for manufacturing a FinFET, and FinFETs are provided. In various embodiments, the method for manufacturing a FinFET includes forming a fin structure over a substrate. Next, a dummy gate is deposited across over the fin structure. The method continues with forming a pair of first spacers on sidewalls of the dummy gate. Then, a source/drain region is formed in the fin structure not covered by the dummy gate. The method further includes removing the dummy gate to expose the fin structure. After that, the first spacers are truncated, and a gate stack is formed to cover the exposed fin structure and top surfaces of the first spacers.
Method of fabricating fin-field effect transistors (finFETs) having different fin widths
Provided are methods of forming field effect transistors. The method includes preparing a substrate with a first region and a second region, forming fin portions on the first and second regions, each of the fin portions protruding from the substrate and having a first width, forming a first mask pattern to expose the fin portions on the first region and cover the fin portions on the second region, and changing widths of the fin portions provided on the first region.
Transistor strain-inducing scheme
A transistor device includes a gate structure disposed over a channel region of a semiconductor substrate. A source/drain recess is arranged in the semiconductor substrate alongside the gate structure. A doped silicon-germanium (SiGe) region is disposed within the source/drain recess and has a doping type which is opposite to that of the channel. An un-doped SiGe region is also disposed within the source/drain recess. The un-doped SiGe region underlies the doped SiGe region and comprises different germanium concentrations at different locations within the source/drain recess.
Semiconductor device and method of fabricating same
A semiconductor device and method of fabricating the semiconductor device are disclosed. The method includes forming a plurality of gate electrodes at a predetermined interval on a surface of a semiconductor substrate, forming spacers on sidewalls of the gate electrodes, depositing an interconnection layer conformally on the surface of the semiconductor substrate over the gate electrodes and the spacers, selectively etching the interconnection layer, wherein at least a portion of the interconnection layer that is formed on the surface of the semiconductor substrate and sidewalls of the spacers and located between adjacent gate electrodes remains after the selective etch, and forming an electrical contact on the etched interconnection layer located between the adjacent gate electrodes.
Vertical DMOS transistor
A transistor includes a semiconductor body; a body region of a first conductivity type formed in the semiconductor body; a gate electrode formed partially overlapping the body region and insulated from the semiconductor body by a gate dielectric layer; a source diffusion region of a second conductivity type formed in the body region on a first side of the gate electrode; a trench formed in the semiconductor body on a second side, opposite the first side, of the gate electrode, the trench being lined with a sidewall dielectric layer; and a doped sidewall region of the second conductivity type formed in the semiconductor body along the sidewall of the trench where the doped sidewall region forms a vertical drain current path for the transistor.
Structure and method for semiconductor device
A semiconductor device and method of forming the same is disclosed. The semiconductor device includes a substrate having first and second device regions. The first device region includes a first source/drain (S/D) region and the second device region includes a plurality of second S/D regions. The semiconductor device further includes a plurality of first recesses in the first S/D region and a plurality of second recesses, one in each of the second S/D regions. The semiconductor device further includes a first epitaxial feature having bottom portions and a top portion, wherein each of the bottom portions is in one of the first recesses and the top portion is over the first S/D region. The semiconductor device further includes a plurality of second epitaxial features each having a bottom portion in one of the second recesses. The second epitaxial features separate from each other.
Gate electrode having a capping layer
A method of manufacturing a semiconductor device and a novel semiconductor device are disclosed herein. An exemplary method includes sputtering a capping layer in-situ on a gate dielectric layer, before any high temperature processing steps are performed.
Nitride semiconductor light-emitting element and method for fabricating the same
Provided is a nitride semiconductor light-emitting element having a low contact resistance between an n-type nitride semiconductor layer and an n-side electrode. A portion of the n-type nitride semiconductor layer is removed by a plasma etching process using a gas containing halogen to expose a surface region of the n-type nitride semiconductor layer. Next, such an exposed surface region is further subjected to a plasma treatment using a gas containing oxygen. After that, the n-side electrode formed of aluminum is formed so as to be in contact with the surface region. In the surface region, a carrier concentration is decreased from the inside of the n-type nitride semiconductor layer toward the n-side electrode.
Semiconductor device and manufacturing method
A semiconductor device includes a trench extending into a semiconductor body from a first surface. At least one of a ternary carbide and a ternary nitride is in the trench.