39th week of 2017 patent applcation highlights part 63 |
Patent application number | Title | Published |
20170279445 | AREA-EFFICIENT DIFFERENTIAL SWITCHED CAPACITORS - A differential switched capacitor device, including: first and second terminals; first and second branches coupled between the first and second terminals, each branch of the first and the second branches comprising at least one capacitor; and first and second switches, each switch of the first and second switches disposed in each branch of the first and second branches. | 2017-09-28 |
20170279446 | SEMICONDUCTOR DEVICE - The present invention is provided to easily manufacture an IPD as any of a high-side switch and a low-side switch. A level shifting circuit is coupled to an input terminal, a first terminal, and a grounding terminal. Drive power of the level shifting circuit is supplied from the first terminal. An output signal of the level shifting circuit is input to a driver circuit. The driver circuit is coupled to the first terminal and a second terminal. Drive power of the driver circuit is supplied from the first terminal. A transistor has a gate electrode coupled to the driver circuit, a source coupled to the second terminal, and a drain coupled to a third terminal. | 2017-09-28 |
20170279447 | POWER SUPPLY SWITCHING CIRCUIT AND ELECTRONIC DEVICE - A power supply switching circuit that selects one power supply potential from among a plurality of power supply potentials. This power supply switching circuit is provided with a transistor QP | 2017-09-28 |
20170279448 | BRIDGED IMBALANCE PUF UNIT CIRCUIT AND MULTI PUF CIRCUITS - The present invention discloses a bridge imbalance PUF unit circuit and multi PUF circuits; the bridge imbalance PUF unit circuit comprises a four-arm bridge unit circuit and a contrast output unit circuit; the multi PUF circuits comprise a timing controller, a row decoder, a column decoder, a memory array, a row output circuit and a column output circuit; each memory unit in the memory array comprises a bridge imbalance PUF unit circuit and 4 NMOS tubes; the present invention features in higher randomness that is up to 51.8% at the supply voltage of 1.2V under the temperature of 25° C. | 2017-09-28 |
20170279449 | Single-Chip High Speed and High Voltage Level Shifter - A semiconductor device includes a low voltage region, a high voltage region monolithically integrated with the low voltage region in a semiconductor substrate, where the low voltage region is electrically coupled to the high voltage region through a capacitive isolation barrier, where the high voltage region is structurally isolated from the low voltage region by an isolation structure. The isolation structure includes a junction termination structure, a deep trench structure, or a reduced surface field (RESURF) structure. The isolation structure forms an isolation ring substantially enclosing the high voltage region in the semiconductor substrate. The low voltage region is configured to provide a differential signal to the high voltage region through the capacitive isolation barrier. The high voltage region is configured to receive a differential signal from the low voltage region through the capacitive isolation barrier so as to level shift the differential signal. | 2017-09-28 |
20170279450 | LEVEL SHIFT CIRCUIT - Provided is a level shift circuit capable of avoiding breakdown due to level shift operation. The level shift circuit includes: a floating power supply having one end connected to an output terminal; a circuit configured to receive a voltage of the floating power supply, a voltage of a low level power supply and first and second pulse signals from a pulse generating circuit, thereof to output first and second signals; and a logic circuit configured to receive first and second signals, thereby converting a signal that is input to the pulse generating circuit into a signal that fluctuates between a voltage at the one end of the floating power supply and a voltage at the other end thereof to output the converted signal. | 2017-09-28 |
20170279451 | RECONFIGURABLE DEVICE - Main memory access from a CPU is reduced, and thus an increase in speed of data processing is achieved. Provided is a reconfigurable device ( | 2017-09-28 |
20170279452 | OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE - An oscillator includes an oscillation circuit, an operation state signal generation circuit that generates an operation state signal based on an operation state of the oscillation circuit, and a first integrated circuit, the oscillation circuit and the operation state signal generation circuit are disposed outside the first integrated circuit, and the first integrated circuit includes a first digital interface circuit, a D/A conversion circuit that converts a digital signal input via the first digital interface circuit into an analog signal to generate a frequency control signal that controls a frequency of the oscillation circuit, and a terminal to which the operation state signal is input. | 2017-09-28 |
20170279453 | OSCILLATION CONTROL APPARATUS AND OSCILLATION APPARATUS - Provided is an oscillation apparatus and an oscillation control apparatus including a first control section that generates a first control signal that controls an oscillation frequency of an oscillator, based on a temperature detection result of a temperature detecting section; an encoder that generates a feedback signal; a second control section that generates a second control signal that controls the oscillation frequency of the oscillator, based on the temperature detection result of the temperature detecting section, an external input signal input from outside, and the feedback signal; an oscillation circuit that sets the oscillation frequency of the oscillator, based on the first control signal and the second control signal; and a reference voltage generating section that generates a reference voltage, wherein the encoder generates the feedback signal by comparing the second control signal and the reference voltage. | 2017-09-28 |
20170279454 | CLOCK CIRCUIT AND CONTROL METHOD THEREOF - A clock circuit and control method thereof to avoid missing the clock signal generated by the clock circuit when the generated clock signal is synced with an external clock signal, wherein the clock circuit comprises a current compensation circuit and a current control circuit. The clock signal is generated by alternately charging and discharging a capacitor with a charging current based on a sync current and a compensating current when an external clock signal is detected. The compensating current is generated based on a frequency of the external clock signal, and the sync current is provided based on a phase difference between the generated clock signal by the clock circuit and the external clock signal. | 2017-09-28 |
20170279455 | QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE - A quantum interference device includes a base having a mounting surface, an atom cell in which alkali metal atoms are encapsulated, a light source adapted to emit light adapted to excite the alkali metal atoms, a photodetector adapted to detect the light having been transmitted through the atom cell, and a support adapted to support the atom cell, the light source, and the photodetector in a lump with respect to the mounting surface in a state in which the atom cell, the light source, and the photodetector are arranged in a direction along the mounting surface. | 2017-09-28 |
20170279456 | QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A quantum interference device has an atomic cell which has alkali metal atoms disposed within. A light source emits light to excite the alkali metal atoms in the atomic cell. An optical element is disposed between the light source and the atomic cell, and enlarges the radiation angle of light emitted from the light source. A light detector detects light transmitted through the atomic cell. | 2017-09-28 |
20170279457 | FIELD DEVICE AND DETECTOR - A field device includes a detector and a converter communicative to the detector. The detector also may include, but is not limited to, a sensor, an analog-to-digital converter, and a first processor. The sensor may be configured to acquire an analog measurement signal. The analog-to-digital converter may be configured to convert the analog measurement signal to a digital signal. The first processor may be configured to convert the digital signal into a measurement value to generate a digital signal representing at least the measurement value. The converter may be configured to convert the digital signal representing at least the measurement value into an instrumentation signal to output the instrumentation signal. The detector may be configured to transmit the digital signal representing at least the measurement value and the analog measurement signal to the converter. | 2017-09-28 |
20170279458 | DEVICE FOR DIGITIZING AN ANALOGUE SIGNAL - A device for digitizing an analogue signal, wherein a distortion signal outlet of a distortion signal generator is only coupled to an analogue digital converter by passive components. | 2017-09-28 |
20170279459 | SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER - Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result. | 2017-09-28 |
20170279460 | UPDATING PREFIX CODES FOR PSEUDO-DYNAMIC DATA COMPRESSION - In a data storage system, a prior set S of prefix codes for pseudo-dynamic compression as well as data compressed utilizing prior set S are stored. While data compressed utilizing prior set S are stored in the data storage system, the number of prefix codes utilized by the data storage system for pseudo-dynamic compression are augmented. Augmenting the number of codes includes determining a new set S′ of prefix codes for pseudo-dynamic compression from a training data set selected from a workload of the data storage system and storing the new set S′ in the data storage system with the prior set S. | 2017-09-28 |
20170279461 | DATA SERIALIZATION CIRCUIT - The data serialization circuit includes a delay circuit, a data serializer, a first data sampler and a second data sampler. The delay circuit receives an input clock signal and generates a plurality of delayed clock signals. The delayed clock signals includes a first delayed clock signal generated by a first delay stage and a second delayed clock signal generated by a second delay stage. The data serializer receives parallel data and a final stage delayed clock signal of the delayed clock signals, and converts the parallel data into serial data according to the final stage delayed clock signal. Wherein, the first data sampler samples the serial data according to the first delayed clock signal to generate a first output serial data, and the second data sampler samples the first output serial data according to the second delayed clock signal to generate a second output serial data. | 2017-09-28 |
20170279462 | METHOD OF CONSTRUCTING FLAT XOR CODES FROM INTEGER INDEXED TANNER GRAPHS - A method for defining an erasure code for system having a predetermined number of data disks is disclosed. The method includes selecting step, constructing step, determining step and repeating step. The selecting step includes selecting a predetermined acceptable number of failures for the system. The constructing step includes constructing a first Tanner graph for two failures acceptable system having predetermined number of data disks. The determining step includes determining erasure code from the first Tanner graph. The repeating step includes repeating the constructing step and the determining step by increasing the acceptable number of failures by one and constructing another Tanner graph in response to the increased acceptable number of failures by increasing number of parity nodes until the predetermined number of failures for the system is reached. | 2017-09-28 |
20170279463 | TECHNIQUES FOR LOW-LATENCY CHASE DECODING OF TURBO PRODUCT CODES WITH SOFT INFORMATION - Techniques are described for decoding a first message. In one example, the techniques include obtaining a second message comprising reliability information corresponding to each bit in the first message, performing a soft decision decoding procedure on the second message to generate a decoded codeword, wherein the soft decision decoding procedure comprises a joint decoding and miscorrection avoidance procedure, and outputting the decoded codeword. | 2017-09-28 |
20170279464 | METHOD OF LDPC CODE ENCODING FOR REDUCING SIGNAL OVERHEAD AND APPARATUS THEREFOR - A method of low-density parity check (LDPC) code encoding and an apparatus therefor are disclosed. The LDPC code encoding method includes determining whether code block cyclic redundancy check (CRC) is attached to a code block based on a channel state or a required error rate. Signal overhead is reduced via selective application of the code block CRC. | 2017-09-28 |
20170279465 | SOFT DECODER PARAMETER OPTIMIZATION FOR PRODUCT CODES - In one embodiment, an apparatus for decoding is disclosed. The apparatus includes a memory and at least one processor coupled to the memory. The at least one processor is configured to obtain one or more parameters corresponding to a system, determine a plurality of settings corresponding to an adaptive soft decoding procedure for decoding a product code, wherein the plurality of settings are determined based on the one or more parameters using a trellis, and determine a decoded codeword by performing the adaptive soft decoding procedure on the received codeword, wherein the adaptive soft decoder utilizes the determined plurality of settings. | 2017-09-28 |
20170279466 | HYBRID SOFT DECODING ALGORITHM FOR MULTIPLE-DIMENSION TPC CODES - An apparatus for decoding a TPC codeword is disclosed. The apparatus includes a memory and a processor coupled to the memory. The processor is configured to receive a first set of soft information corresponding to the TPC codeword. The TPC codeword includes at least one codeword corresponding to each of first, second, and third dimensions. The processor is further configured to iteratively perform a first soft decoding procedure on the at least one codeword corresponding to the first dimension to generate a first candidate codeword and upon determining that the first candidate codeword is not a correct codeword, and perform a second decoding procedure on the at least one codeword corresponding to the third dimension to generate a second candidate codeword. The second decoding procedure generates a second set of soft information to be used at a later iteration of the first decoding procedure. | 2017-09-28 |
20170279467 | PERFORMANCE OPTIMIZATION IN SOFT DECODING OF ERROR CORRECTING CODES - Techniques are described for decoding a codeword. In one example, the techniques include obtaining a first message comprising reliability information corresponding to each bit in the first codeword, determining a plurality of least reliable bits in the first codeword, and generating a plurality of flipped messages by flipping one or more of the plurality of least reliable bits in the first codeword. A number of the plurality of least reliable bits is equal to a first parameter and a number of flipped bits in each of the plurality of flipped messages is less than or equal to a second parameter. The method further includes decoding one or more of the plurality of flipped messages using a hard decoder to generate one or more candidate codewords. | 2017-09-28 |
20170279468 | SOFT DECODER FOR GENERALIZED PRODUCT CODES - A memory device includes a memory array, a processor, and a decoding apparatus. The processor is coupled to the memory array and configured to read encoded data from the memory array. The encoded data includes a plurality of data blocks and each data block is included in two or more data codewords. Further, data codewords belonging to a same pair of data codewords share a common data block. The decoding apparatus is configured to iteratively decode data codewords using hard decoding and soft decoding, and to correct stuck errors by identifying failed data blocks based on shared blocks between failed data codewords. | 2017-09-28 |
20170279469 | RF MULTIPLEXER WITH INTEGRATED DIRECTIONAL COUPLERS - An RF diplexer is provided with an integrated diplexer that shares a primary inductor included in a channel within the RF diplexer. | 2017-09-28 |
20170279470 | HIGH-FREQUENCY SIGNAL PREDISTORTION DEVICE AND NONLINEAR DISTORTION CORRECTING DEVICE FOR POWER AMPLIFIER - A high-frequency signal predistortion device includes a high-frequency signal estimator, a predistortion estimator, and a predistorter. The high-frequency signal estimator is configured to determine non-linear distortion characteristics of high-frequency signals transmitted by antennas. The predistortion estimator is coupled to the high-frequency signal estimator. The predistortion estimator is configured to determine a predistortion coefficient based on the non-linear distortion characteristics. The predistorter is coupled to the predistortion estimator. The predistorter is configured to distort a base signal of the high-frequency signals based on the predistortion coefficient. | 2017-09-28 |
20170279471 | Transmitting Wideband Signals Through an Electrically Small Antenna Using Antenna Modulation - The present invention provides methods and devices to radiate wideband signals. The devices may include a tunable high Q narrowband antenna having a plurality of ports including a feed port and a tuning port as well as a tuning element coupled to the tuning port of the antenna. One or more voltage sources supply energy for radiating a radio frequency signal. A modulating signal generator may also be provided for generating a high data rate signal coupled at the tuning element for modulating the tuning element. | 2017-09-28 |
20170279472 | COMMUNICATIONS DEVICES, INFRASTRUCTURE EQUIPMENT AND METHODS - A communications device including a receiver configured to receive a plurality of sub-units of an encoded transport block of data in a plurality of time-divided units within frequency resources of a wireless access interface allocated to the mobile terminal, each of the sub-units being received a repeated number of times within a repetition cycle; and circuitry configured to combine a same sub-unit received the repeated number of times to form a composite sub-unit to recover the transport block. | 2017-09-28 |
20170279473 | ELECTRONIC DEVICE - An electronic device (eyeglasses-type wireless communication device) to be worn by a user includes a wearing section to be worn by the user and an extending section formed in the wearing section and disposed in a direction extending away from the user when the wearing section is worn on the user's head. A first antenna is formed in the extending section. | 2017-09-28 |
20170279474 | PORTABLE DEVICE - There is provided a portable device ( | 2017-09-28 |
20170279475 | ELECTRONIC DEVICE - An electronic device is to be worn by a user and includes an antenna and a storage compartment that stores the antenna. In a state of the electronic device being worn by the user, the storage compartment is positioned at a side of the user's head. The antenna is capable of selectively adopting a stored state and a deployed state, the antenna being stored in the storage compartment in the stored state, and a greater portion of the antenna being separated from the storage compartment in the deployed state than in the stored state. | 2017-09-28 |
20170279476 | METAL FRAME FOR DEVICE BEING EQUIPPED WITH WIRELESS CHARGING TRANSMITTER OR RECEIVER - Disclosed herein is a metal frame for a device being equipped with a wireless charging transmitter or receiver including a plurality of perforation holes configured in at least one partial area of the metal frame, wherein the perforation hole has a diameter ranging from sub nm to several μm, and wherein an average distance between an arbitrary point A on a circumferential surface of a perforation hole, among the plurality of perforation holes, and an arbitrary point B on a circumferential surface of another perforation hole being adjacent to the perforation hole is equal to or less than a skin depth corresponding to a metallic material of the metal frame, and wherein point A and point B respectively correspond to points indicating a longest distance between the circumferential surfaces of each perforation hole to which point A and point B belong. | 2017-09-28 |
20170279477 | Mobile Electronic Device Protection Case - A mobile electronic device protection case provides protection to mobile electronic devices. Mobile electronic devices include, but are not limited to, cellphones, tablets, or similar electronic devices. The mobile electronic device protection case is easily attachable and detachable from the mobile electronic device. While protecting the mobile electronic device, the present invention leaves a majority of the mobile electronic device exposed in order to highlight the aesthetic of the mobile electronic device. The mobile electronic device protection case includes a plurality of corner protectors to engage the corners for the mobile electronic device to protect the mobile electronic device from lateral impacts to the corners. Each corner protector of the plurality of corner protectors include a first clip support and a second clip support to secure the corner protector to either side of the mobile electronic device. | 2017-09-28 |
20170279478 | PROTECTIVE CASE FOR MOBILE DEVICE WITH INTEGRATED LATCH - A protective case for a mobile device is disclosed. The protective case includes a front cover, a back cover, and a relatively rigid shell. The front cover includes multiple fold lines that extend across the cover and allow adjacent regions of the cover to rotate or move relative to each other. The shell is configured to receive and retain the mobile device while providing user access to the mobile device. The shell has an outer surface configured to include a latch with an integrated hook. In operation, the latch hooks and retains one end section of the front cover to maintain the device in an angled use position when open. When in the fully closed position the latch fits within an aperture defined within a back end region of the front cover. Magnets incorporated into the front cover assist in maintaining the case in the fully closed position. | 2017-09-28 |
20170279479 | WIRELESS TRANSCEIVER WITH REMOTE FRONTEND - A wireless communication device includes a first circuit including a baseband circuit and a radio circuit, and at least one frontend module (FEM) remote from the first circuit and placed in close proximity to and coupled to at least one radio-frequency (RF) antenna. The FEM is coupled to the first circuit via interface circuitry. An FEM comprises a frontend (FE) circuit including one or more low-noise amplifiers (LNAs), one or more power amplifiers (PAs), and at least one of a multi-pole switch and a multiplexer. The multi-pole switch and the multiplexer being implemented on a first side of the FEM coupled to the interface circuitry. The interface circuitry includes at least some of filters, splitters, multi-pole switches, and multiplexers to reduce a count of interconnect routes to the at least one FEM. | 2017-09-28 |
20170279480 | SYSTEMS AND METHODS FOR NON-LINEAR DIGITAL SELF-INTERFERENCE CANCELLATION - A system and method for non-linear digital self-interference cancellation including a pre-processor that generates a first pre-processed digital transmit signal from a digital transmit signal of a full-duplex radio, a non-linear transformer that transforms the first pre-processed digital transmit signal into a non-linear self-interference signal according to a transform configuration, a transform adaptor that sets the transform configuration of the non-linear transformer, and a post-processor that combines the non-linear self-interference signal with a digital receive signal of the full-duplex radio. | 2017-09-28 |
20170279481 | RADIO BASE STATION AND SYSTEM HAVING SAID RADIO BASE STATION - The invention relates to a base station or a radio access point having a plurality of radio modules, of which one communicates with electronic price indication signs. If a plurality of radio modules use the same frequencies and communicate simultaneously, disturbances can occur in the form of interference. The invention solves this problem in that the radio modules ( | 2017-09-28 |
20170279482 | ELECTRONIC DEVICE WITH RADIO FUNCTION AND OPERATING METHOD THEREOF - A method and a device for selecting a radio in an electronic device with a hybrid radio function. The method includes detecting an entrance to a hybrid radio function; determining a default radio mode to be executed as a default in response to a preconfigured mode determination condition; and receiving and reproducing a radio broadcast in a radio mode corresponding to the determined default radio mode. The present disclosure can be applied to various other embodiments based on the aforementioned embodiment. | 2017-09-28 |
20170279483 | DECODER FOR ANTENNA SWITCH - An antenna switch module includes a radio-frequency input port, a radio-frequency output port, a radio-frequency core connected between the radio-frequency input port and the radio-frequency output port, the radio-frequency core being configured to operate in each of a plurality of operational states, the plurality of operational states including a first subset of operational states and a second subset of operational states, and a decoder configured to receive an input signal indicating a first operational state of the radio-frequency core, the first operational state being of the first subset of operational states, generate an output control signal corresponding to the first operational state, detect a transition of the radio-frequency core to a second operational state, determine that the second operational state is of the second subset of operational states, and insert an intermediate output signal corresponding to an intermediate operational state of the radio-frequency core in response to said determination. | 2017-09-28 |
20170279484 | Electrically Isolated Push-to-Talk Devices - Communications systems containing an electrically-isolated Push-To-Talk (EI-PTT) device are described in this application. The communication systems contain multiple radios, a microphone/headset, and a centralized power supply. The systems also contain an EI-PTT device which reduces or eliminates noise that can disrupt the audio transmission. The EI-PTT device allows an operator or user of the communication system to actuate a button which remotely switches the radio from receive mode to transmit mode. This allows multiple users to listen (receive) to communication traffic on the same frequency at all times, but only speak (transmit) on the frequency while activating the EI-PTT device. Unlike other PTT devices which electrically tie the ground signals inside the device, the EI-PTT devices electrically isolate the ground signals to reduce the problem of noise coupling. Other embodiments are described. | 2017-09-28 |
20170279485 | SIGNAL PROCESSING METHOD AND TRANSMITTER AND RECEIVER - A signal processing method, and a transmitter and a receiver are disclosed. The signal processing method may include converting a transmission signal to a non-periodic sequence type transmission signal using periodic sequences and transmitting the non-periodic sequence type transmission signal to the receiver, in which the receiver may detect a burst from the received non-periodic sequence type transmission signal. | 2017-09-28 |
20170279486 | METHOD, APPARATUS, COMPUTER PROGRAM, CHIP SET, OR DATA STRUCTURE FOR CORRELATING A DIGITAL SIGNAL AND A CORRELATION CODE - A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver. | 2017-09-28 |
20170279487 | Adaptive Cell Search, in Particular Under Extended Coverage - The disclosure pertains to a method for operating a user equipment ( | 2017-09-28 |
20170279488 | METHOD AND APPARATUS FOR CANCELING INTERFERENCE - Provided are a method and an apparatus for canceling interference, to resolve a problem that performance of interference cancellation is poor because accuracy of equalizer coefficients obtained by a CMTS through calculation is not sufficiently high. A specific solution is as follows: ( | 2017-09-28 |
20170279489 | TECHNIQUES FOR PROCESSING AND STORING VECTORING COEFFICIENTS - Techniques for processing, storing, and using vectoring coefficients in a wireline communication system are disclosed. A wireline device selects victim-disturber specific parameters corresponding to a pair of digital subscriber line (DSL) lines and a subset of tones used to communicate data over the pair of DSL lines and downsamples, based at least in part on a downsampling parameter of the victim-disturber specific parameters, a set of vectoring coefficients. Each set of vectoring coefficients is quantized, and then a set of change values for each set of downsampled and quantized vectoring coefficients is compressed. The set of change values represent a difference between the downsampled and quantized vectoring coefficients across the subset of tones. The wireline device uses the compressed sets of change values to perform vectoring over the DSL lines. | 2017-09-28 |
20170279490 | NON-LINEAR PRECODING WITH A MIX OF NLP CAPABLE AND NLP NON-CAPABLE LINES - The method includes organizing a plurality of subscriber lines into a first group of subscriber lines and a second group of subscriber lines, the first group of subscriber lines at least including all the subscriber lines of the plurality of subscriber lines that do not support non-linear precoding operation and the second group of subscriber lines including the remaining subscriber lines of the plurality of subscriber lines; scaling first signals to be transmitted over respective ones of the first group of subscriber lines to confine respective intermediate transmit power levels at the input of a modulo unit and further to bypass or make ineffective the operation of the modulo unit; and processing the so scaled first signals and second signals to be transmitted over respective ones of the second group of subscriber lines through the first and second precoding stages. | 2017-09-28 |
20170279491 | HANDLER WITH INTEGRATED RECEIVER AND SIGNAL PATH INTERFACE TO TESTER - A method for testing a device under test (DUT) is disclosed. The method comprises communicating signals wirelessly from a first plurality of patch antennae disposed on a top surface of the DUT to a second plurality of patch antennae disposed on a printed circuited within a handler device, wherein the handler device is operable to place the DUT in a socket of a tester system, and wherein the tester system comprises the handler device and a test fixture. The method further comprises communicating the signals captured by the second plurality of patch antennae using microstrip transmission lines to a patch antenna on the printed circuit board, wherein a first waveguide is mounted to the patch antenna using a first waveguide flange, and wherein the first waveguide flange is coupled to a first end of the first waveguide. | 2017-09-28 |
20170279492 | Single Path Signal Conditioner for Bi-Directional Radio Frequency Signals in a Telecommunications Network - A signal conditioning device for conditioning bi-directional radiofrequency (RF) signals in a telecommunications network is provided. The signal conditioning device can allow for the conditioning of both upstream and downstream components of a bi-directional telecommunications signal in a telecommunication system using a signal conditioning device disposed at a single location. The signal conditioning device can include first and second line connections and a signal path between the first and second line connections. The signal conditioning device can condition upstream and downstream components of a bi-directional telecommunications signal using plug-in signal conditioning circuits received into one or more external plug-in sockets coupled to the signal path. | 2017-09-28 |
20170279493 | DIRECTIONAL COUPLING DEVICE AND METHODS FOR USE THEREWITH - Aspects of the subject disclosure may include, for example, a coupling device including a first antenna that radiates a first wireless signal conveying first data; and a second antenna that radiates a second RF signal conveying the first data from the at least one transmitting device. The first wireless signal and second RF signal form a combined RF signal that is bound by an outer surface of a transmission medium to propagate as a guided electromagnetic wave substantially in a single longitudinal direction along the transmission medium. Other embodiments are disclosed. | 2017-09-28 |
20170279494 | MAGNETIC COUPLING DEVICE AND METHODS FOR USE THEREWITH - Aspects of the subject disclosure may include, for example, a coupling device including a receiving portion that receives a radio frequency signal conveying data from a transmitting device. A magnetic coupler magnetically couples the radio frequency signal to a transmission medium as a guided electromagnetic wave that is bound by an outer surface of the transmission medium. Other embodiments are disclosed. | 2017-09-28 |
20170279495 | PROCESSING METHOD FOR LEAKAGE POWER AND ELECTRONIC DEVICE SUPPORTING THE SAME - A leakage power processing method of an electronic device including a first conductive pattern that sends and receives a communication signal associated with a communication function, a second conductive pattern that is arranged adjacent to the first conductive pattern and sends and receives a power signal used for charging, and a communication hardware interface electrically connected with the first conductive pattern is provided. The leakage power processing method includes determining, by a processor of an electronic device, whether a specific power signal is induced through the second conductive pattern and forming, by the processor of the electronic device, a closed loop including the first conductive pattern if the specific power signal of a specific magnitude or greater is induced. | 2017-09-28 |
20170279496 | ARRANGEMENT FOR MANAGING WIRELESS COMMUNICATION BETWEEN DEVICES - An arrangement for managing bi-directional wireless communication between a controller and a plurality of controllable-devices wherein each controllable-device is able to provide operable function specific instructions to the controller as to how it would like to be operated by the controller and wherein a proximity mechanism means provides bidirectional communications over a distance of a few centimetres between the controller and the or each controllable-device. | 2017-09-28 |
20170279497 | ARRANGEMENT FOR MANAGING WIRELESS COMMUNICATION BETWEEN DEVICES - An arrangement for managing bi-directional wireless communication between a controller and a plurality of controllable-devices wherein each controllable-device is able to provide operable function specific instructions to the controller as to how it would like to be operated by the controller and wherein a proximity mechanism means provides bidirectional communications over a distance of a few centimetres between the controller and the or each controllable-device. | 2017-09-28 |
20170279498 | LOCATING AN IN-VEHICLE NEAR FIELD COMMUNICATION (NFC) ANTENNA - In an example of a method for locating a Near Field Communication (NFC) antenna, an indication of an imminent use of the NFC antenna is received. In response to receiving the indication, a light is caused to illuminate a location of the NFC antenna, a logo of the NFC antenna, or an area within proximity of the location of the NFC antenna in a pattern. | 2017-09-28 |
20170279499 | INFORMATION PROCESSING DEVICE, DISPLAY DEVICE, SHORT-RANGE WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR CONTROLLING INFORMATION PROCESSING DEVICE - Communication which a user does not desire is prevented. As information processing device ( | 2017-09-28 |
20170279500 | Antenna and Active Antenna System - An antenna and an active antenna system to reduce complexity and power consumption of an antenna device, and reduce production costs, where the antenna includes an antenna array, a multichannel front-end, a multi-beam receiving network, and a multi-beam transmitting network. The antenna array includes w antenna elements, the multi-beam transmitting network is configured to perform beamforming processing on j transmit signal beams to obtain m transmit signals, the multichannel front-end is configured to convert w first radio-frequency signals received by the w antenna elements into n received signals, and convert the m transmit signals obtained by the multi-beam transmitting network into w second radio-frequency signals, where both n and m are less than or equal to w, and the multi-beam receiving network is configured to perform beamforming processing on the n received signals generated by the multichannel front-end to obtain k received signal beams. | 2017-09-28 |
20170279501 | REFERENCE SIGNAL TRANSMISSION METHOD IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present invention relates to a base station in a wireless communication system which supports multi-antennas with multiple horizontal domains and multiple vertical domains. Particularly, the present invention comprises: a radio frequency unit and a processor, wherein the radio frequency unit comprises a first radio frequency (RF) chain and a second radio frequency (RF) chain which are connected to antenna elements corresponding to multiple vertical antennas with specific horizontal domains, wherein the processor, connected to the radio frequency unit, is configured to transmit reference signals, and wherein the first RF chain and the second RF chain are configured for different reference signals. | 2017-09-28 |
20170279502 | METHOD FOR TRANSMITTING REFERENCE SIGNAL FOR CHANNEL MEASUREMENT IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present invention relates to a method and an apparatus for transmitting, by a base station, a reference signal in a wireless communication system supporting a multi-antenna consisting of a plurality of horizontal domain antennas and a plurality of vertical domain antennas. Specifically, the method comprises the steps of: configuring, as a cell-specific reference signal (CRS) port, M first antenna ports among a total of N antennas that the base station has (where N and M are positive integers, N>M); transmitting a CRS using the M first antenna ports and transmitting a demodulation reference signal (DM-RS) using 0 second antenna ports (where 0 is a positive integer, N>O), to a terminal; and receiving channel measurement information using the CRS and the DM-RS which is fed back from the terminal. | 2017-09-28 |
20170279503 | BASE STATION APPARATUS, TERMINAL DEVICE, AND COMMUNICATION METHOD - Provided are a base station apparatus, a terminal device, and a communication method that can realize a small cell network while reducing load on the terminal device, the small cell network including a small cell performing massive MIMO transfer. The base station apparatus of the present invention is a second base station apparatus included in a communication system in which a plurality of the second base station apparatuses capable of acquiring assistance information from a first base station apparatus communicates with a terminal device, the base station apparatus including a codebook that describes a plurality of linear filters, in which the same cell identification number as at least one of the other second base station apparatuses is configured, and a synchronization signal correlated with the cell identification number is transmitted on the basis of the plurality of linear filters after first precoding of the synchronization signal. | 2017-09-28 |
20170279504 | METHOD AND SYSTEM FOR PROCESSING DOWNLINK PILOT SIGNAL - A method and system for processing a downlink pilot signal is disclosed. Herein, the method includes: a receiving end detecting downlink measurement pilot ports to obtain a received signal corresponding to each downlink measurement pilot port on each receiving antenna; performing screening on the downlink measurement pilot ports according to the received signals; calculating a receiving weight vector of each downlink measurement pilot port, and using an uplink precoding weight vector, calculated and obtained by combining the receiving weight vector with uplink and downlink operating frequencies, for data precoding; or, using N uplink precoding weight vectors, calculated and obtained by combining the receiving weight vector with uplink and downlink operating frequencies, for uplink pilot precoding, where N is the number of uplink precoding pilots transmitted, and N is an integer which is greater than or equal to 1. The above technical solution can effectively reduce pilot overhead in communication systems. | 2017-09-28 |
20170279505 | Downlink Channel Estimation Method and Apparatus Based on Sounding Reference Signal and Communications System - A downlink channel estimation method and apparatus based on a sounding reference signal (SRS), and a communications system. The method includes: a base station receives a SRS sent by UE, the SRS being used for downlink channel estimation and supporting high-dimensional MU-MIMO; performing uplink channel estimation according to the SRS; and acquiring downlink channel information according to uplink channel information obtained in the uplink channel estimation. By means of embodiments of the present disclosure, downlink reference signal overheads and feedback overheads can be remarkably reduced, gain brought by large-scale antennas is obtained, and the system capacity can be further improved. | 2017-09-28 |
20170279506 | Cooperative Wireless Networks - A cooperative multi-user multiple input, multiple output (MIMO) antenna array comprises a MIMO subspace processing system communicatively coupled to a set of antennas residing on multiple ones of a plurality of geographically distributed wireless terminals in a Mobile Radio Network. The MIMO subspace processing system can comprise a distributed computing system. The MIMO antenna array is adapted by updating the set of antennas to produce a second set of antennas; selecting an updated set of distributed computing resources, if necessary, to perform MIMO subspace processing; and reconfiguring the MIMO subspace processing to employ channel state information of the second set to enable multiple non-interfering subspace channels occupying a common frequency. | 2017-09-28 |
20170279507 | ENHANCED ANTENNA ARRAY TRAINING - Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. | 2017-09-28 |
20170279508 | System and Method for Downlink Channel Estimation in Massive Multiple-Input-Multiple-Output (MIMO) - It is possible to reduce the overhead associated with downlink channel estimation in massive Multiple-Input-Multiple-Output (MIMO) networks by processing training sequences according to a transformation matrix. The transformation matrix maps a generic dictionary to a non-generic dictionary associated with an antenna geometry of a MIMO antenna array. The transformation matrix can be computed based on the two dictionaries. In one embodiment, the training reference signal is precoded to obtain a precoded training reference signal, which is then transmitted over a MIMO antenna array. The training precoder used to precode the training reference signal is designed according to the transformation matrix to mitigate a dependence that the training reference signal transmission has on the antenna geometry. | 2017-09-28 |
20170279509 | PRECODER CODEBOOK FOR CSI REPORTING IN ADVANCED WIRELESS COMMUNICATION SYSTEMS - A method for a channel state information (CSI) feedback in an advanced communication system. The method comprises receiving, from a base station (BS), CSI feedback configuration information for a precoding matrix indicator (PMI) feedback using a higher layer signaling, wherein the CSI feedback configuration information includes a combination of an oversampling factor (O | 2017-09-28 |
20170279510 | FACILITATING SWITCHING BETWEEN TRANSMITTING ANTENNAS IN PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a system that uses a first antenna and a second antenna in a portable electronic device. During operation, the system receives a request to switch from the first antenna to the second antenna to transmit a signal to a cellular receiver. Next, the system loads a set of radio-frequency (RF) calibration values for the second antenna. Finally, the system performs the switch from the first antenna to the second antenna to transmit the signal, wherein the second antenna is operated using the RF calibration values after the switch. | 2017-09-28 |
20170279511 | METHODS, NETWORK NODE AND COMMUNICATION DEVICE FOR TRANSMITTING DATA - The disclosure relates to a method performed in a network node for transmitting data in a wireless network. The network node is configurable for controlling a multiple input multiple output antenna system. The method comprises beamforming user specific data streams to one or more communication devices, UE | 2017-09-28 |
20170279512 | DATA TRANSMISSION METHOD, SYSTEM, AND DEVICE - A method includes: generating, by user equipment, at least one piece of channel state information, wherein each piece of channel state information in the at least one piece of channel state information is corresponding to at least one resource unit required for sending data by a base station; and sending, by the user equipment, multiple pieces of channel state information, so that the base station sends data on a corresponding resource unit according to channel state information. Therefore, channel state information sent by the user equipment is associated with a resource unit required for sending data by the user equipment. | 2017-09-28 |
20170279513 | SYSTEMS AND METHODS FOR ENHANCED MIMO OPERATION - A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station. | 2017-09-28 |
20170279514 | LINEAR COMBINATION PMI CODEBOOK BASED CSI REPORTING IN ADVANCED WIRELESS COMMUNICATION SYSTEMS - A method for a channel state information (CSI) feedback in an advanced communication system. The method comprises receiving, from a base station (BS), CSI feedback configuration information for a pre-coding matrix indicator (PMI) feedback based on a linear combination (LC) codebook, wherein the PMI comprises a first PMI i | 2017-09-28 |
20170279515 | Data Processing Method, Apparatus, and Device - A data processing method, including performing, by a transmit end device, mapping processing on L layers of information bits to generate L layers of modulation symbol sequences, where each layer of modulation symbol sequence includes U modulation symbols, the L layers of modulation symbol sequences correspond to a same time-frequency resource, and the U modulation symbols include at least one non-zero modulation symbol and at least one zero modulation symbol, performing precoding processing on each layer of modulation symbol sequence according to a precoding matrix to generate L layers of modulation symbol sequence matrixes, and performing superposition processing on the L layers of modulation symbol sequence matrixes to generate a to-be-sent symbol sequence matrix, where the to-be-sent symbol sequence matrix includes T element sequences in a first dimension, and the to-be-sent symbol sequence matrix includes U element sequences in a second dimension. | 2017-09-28 |
20170279516 | METHOD AND APPARATUS FOR DEPLOYING A RELAY NODE AND SYSTEM - A method and apparatus for deploying a relay node and a system. In an implementation, the apparatus for deploying includes: detecting receiving power of all neighboring nodes during movement of a relay node taken as a node to be deployed, and taking a predetermined number of neighboring nodes which have joined in a network, are capable of communicating with a sink node and have relatively high receiving power, in all the neighboring nodes as flag nodes of the relay node; comparing a sum of receiving power of all detected flag nodes with a deployment prompt decision interval; and performing a corresponding prompt according to a comparison result. Hence, connectivity between all sensor nodes and a sink node in the wireless sensor network may be achieved. | 2017-09-28 |
20170279517 | NARROWBAND SIGNAL TRANSPORT SUB-SYSTEM FOR DISTRIBUTED ANTENNA SYSTEM - A circuit for use within a distributed antenna system includes: demodulators configured to generate respective frequency-shifted downlink signals from a carrier of a plurality of carriers included within a broadband downlink signal received at the circuit, each of the frequency-shifted downlink signals having a respective frequency shift from a frequency of the carrier, wherein the respective frequency shift is based on a bandwidth of a narrowband channel associated with the carrier, and filters communicatively coupled to the demodulators and configured to output a set of narrowband downlink signals, wherein each of the filters has a passband corresponding to the bandwidth of the carrier and is configured to generate a respective narrowband downlink signal of the set of narrowband downlink signals by filtering a respective one of the frequency-shifted downlink signals. | 2017-09-28 |
20170279518 | METHOD FOR SENDING AND RECEIVING DATA ON A COOPERATIVE COMMUNICATIONS SYSTEM AND A COOPERATIVE COMMUNICATIONS METHOD - A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node. | 2017-09-28 |
20170279519 | SATELLITE SYSTEM ARCHITECTURE FOR COVERAGE AREAS OF DISPARATE DEMAND - Disclosed is a satellite communication system that allocates bandwidth to maximize the capacity of the communication system while providing service to geographical areas having different demands. A smaller portion of the frequency spectrum can be allocated for subscriber beams that supply service to low demand areas. A larger portion of the frequency spectrum can be provided to subscriber beams that provide access to high demand areas. Allocation of bandwidth can be determined by the amount of demand in low demand areas versus the amount of demand in high demand areas. High demand gateways are physically located in low demand subscriber beams, while low demand gateways are physically located in high demand subscriber beams, which prevents interference. | 2017-09-28 |
20170279520 | SATELLITE SIGNAL RECEPTION DEVICE - A satellite signal reception device includes: a local signal generator that generates a signal while switching between a signal having a first local frequency corresponding to a first positioning satellite signal and a signal having a second local frequency corresponding to a second positioning satellite signal based on a reference clock signal; and a frequency converter that converts a reception signal of the first positioning satellite signal into a first intermediate frequency signal by multiplying the reception signal of the first positioning satellite signal by the signal having the first local frequency, and converts a reception signal of the second positioning satellite signal into a second intermediate frequency signal of which at least a part of a converted frequency band is in common with the first intermediate frequency signal multiplying the reception signal of the second positioning satellite signal by the signal having the second local frequency. | 2017-09-28 |
20170279521 | Scalable Architecture for Digital Signal Processing - Architecture is described for implementing digital signal processors, defined by a plurality of physically distinct processing modules connected by high speed digital interconnections in which a first plurality of first modules have a plurality of analogue or digital signal inputs and arranged to perform a first set of digital processing functions and produce a first plurality of digital interconnection outputs, a second plurality of second modules are arranged to receive the first plurality of digital interconnection outputs and perform a second set of digital processing functions and produce a second plurality of digital interconnection outputs, and a third plurality of third modules are arranged to receive the second plurality of digital interconnection outputs and perform a third set of digital processing functions and produce a plurality of analogue or digital signal outputs, wherein the architecture is scalable by selection of the number of first modules, the number of second modules and the number of third modules and the interconnections between them such that the signal processing required of a digital signal processor is achieved through the distribution of the processing over the combination of the selected numbers of first, second and third modules. | 2017-09-28 |
20170279522 | METHOD AND APPARATUS FOR REQUESTING TRANSMISSION OF SYNCHRONIZATION SIGNALS IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for requesting a synchronization signal in a wireless communication system is provided. A machine type communication user equipment (MTC UE) transmits a random access preamble for requesting the synchronization signal to a network, receives the synchronization signal from the network, and performs synchronization by using the received synchronization signal. | 2017-09-28 |
20170279523 | OPTICAL NETWORK FAULT IDENTIFICATION - An optical network node capable of being powered, comprising—a reflector arranged to reflect an optical signal, and—a switch arranged to direct the optical signal to the reflector in dependence on whether the optical network node is powered. | 2017-09-28 |
20170279524 | FAULT LOCALIZATION AND FIBER SECURITY IN OPTICAL TRANSPONDERS - Designs, methods, and applications for fault localization and fiber security in optical transponders is described. In one embodiment a two-way time transfer protocol or other suitable method for synchronizing clocks between distant transponders is used. The clock synchronized transponders have digital signal processing to continually detect high precision time-histories of physical layer attributes in the transmission between the two transponders. Physical layer attributes can include: state-of-polarization changes, changes in polarization-mode-dispersion, change in propagation delay, changes or loss-of-light, changes in OSNR, changes in BER between the two nodes. By recording these physical layer changes and time-stamping them information on the magnitude and estimated location of the changes can be inferred by from the time records. In one aspect the method may be used in a distributed optical sensor for monitoring trespassing events that are a risk to fiber security of an optical transmission link. | 2017-09-28 |
20170279525 | Method, Apparatus, and System for Detecting Rogue Optical Network Unit - Embodiments of the present invention disclose a method. The method includes determining, by an OLT, that an ONU goes offline, and sending to the ONU corresponding to an ONU identifier, a detection message that carries the ONU identifier, where the ONU identifier is an ONU identifier that is occupied before the ONU goes offline and that is not reassigned, and the detection message is used to instruct the ONU corresponding to the ONU identifier to report an identification code. The method also includes receiving, a response message, where the response message carries the identification code of the ONU that sends the response message. The method also includes and determining that the ONU corresponding to the identification code carried in the response message is a rogue ONU. | 2017-09-28 |
20170279526 | FREQUENCY OFFSET DETECTION AND CORRECTION IN OPTICAL SPECTRUM MEASUREMENT SYSTEMS - A frequency offset detection method in an optical spectrum measurement device, implemented by a controller, includes determining a reference optical spectrum based on expected channels and their associated spectral occupancy without extracting any information from actual received optical spectrum; obtaining a measured optical spectrum from the optical spectrum measurement device; and performing a frequency offset control loop using the reference optical spectrum and the measured optical spectrum to correct frequency offset in the optical spectrum measurement device. The optical spectrum measurement device can be an Optical Channel Monitor and the measured optical spectrum can include optical channels partially overlapping one another in Nyquist or in super-Nyquist spacing. | 2017-09-28 |
20170279527 | METHOD AND APPARATUS FOR SETTING QUIET WINDOW IN PASSIVE OPTICAL NETWORK SYSTEM - A method and an apparatus for setting a quiet window in a passive optical network system are provided. A first response time from a time after an optical line terminal (OLT) transmits a serial number request up to a time in which the OLT receives a first response signal to the serial number request is measured, and a second response time up to a time in which the OLT receives a final response signal to the serial number request is measured. In addition, distance information of an optical network unit (ONU) including the first response time and the second response time is acquired. | 2017-09-28 |
20170279528 | DEVICE AND METHOD FOR MONITORING TRANSMISSION CHARACTERISTICS - A transmission characteristics monitoring device monitors transmission characteristics of an optical transmission path between nodes. The device detects an average power of the frequency modulated optical signal and a slope of the transmission characteristics; generates a slope function that represents a slope of the transmission characteristics between first and second frequencies; generates a corrected power value by adding an integral of the slope function to a first power measurement value detected at the first frequency; | 2017-09-28 |
20170279529 | SIGNAL DETECTION DEVICE AND SIGNAL DETECTION METHOD - A signal detection device including: a comparison unit that obtains data including central frequencies of optical signals respectively transmitted by a plurality of optical transmitters and a central frequency interval indicating the interval between the central frequencies, power measurement values obtained by measuring, at sampling point frequencies arranged at a prescribed sampling interval, the power of a WDM signal for which the wavelength of optical signals has been multiplexed, a sampling interval, and sampling point frequencies, that selects a selection value from among the power measurement values on the basis of the central frequency interval and the sampling interval, and that outputs a result of comparison between the selection value and a prescribed threshold; and an alarm generator that outputs a signal interruption alarm in a case where the comparison result indicates that the selection value is less than the threshold. | 2017-09-28 |
20170279530 | TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, AND RECEPTION METHOD - Both a conventional receiver and an HDR-compatible receiver well perform electro-optical conversion processing on transmission video data obtained by using an HDR opto-electronic transfer characteristic. High dynamic range opto-electronic conversion is performed on high dynamic range video data to obtain the transmission video data. Encoding processing is performed on this transmission video data to obtain a video stream. A container of a predetermined format including this video stream is transmitted. Metadata information indicating a standard dynamic range opto-electronic transfer characteristic is inserted into a layer of the video stream, and metadata information indicating a high dynamic range opto-electronic transfer characteristic is inserted into at least one of the layer of the video stream and a layer of the container. | 2017-09-28 |
20170279531 | DATA-AIDED CHROMATIC DISPERSION ESTIMATION - The present invention relates to performing chromatic dispersion estimation in a receiver of an optical communication system. Here, the signal received by the receiver includes frames, each comprising a training portion and a data portion. The training portion comprises a plurality of identical pattern sequences. Different settings are applied to an equalizer to generate a plurality of equalized signals from at least one of the received frames. Then, at least one correlation value is calculated between a first pattern sequence and a second pattern sequence of the equalized signals and a final correlation value is derived from the respective correlation values. The setting of the equalizer corresponding to the equalized signal providing the highest final correlation value is selected to provide the chromatic dispersion estimation. | 2017-09-28 |
20170279532 | SECURE CRYPTO MODULE INCLUDING OPTICAL GLASS SECURITY LAYER - An optical electromagnetic radiation (EM) emitter and receiver are located upon a printed circuit board (PCB) glass security layer. A predetermined reference flux or interference pattern, respectively, is an expected flux or reflection pattern of EM emitted from the EM emitter, transmitted by the glass security layer, and received by the EM receiver. When the PCB is subject to an unauthorized access thereof the optical EM transmitted by glass security layer is altered. An optical monitoring device that monitors the flux or interference pattern of the optical EM received by the EM receiver detects a change in flux or interference pattern, in relation to the reference flux or reference interference pattern, respectively, and passes a tamper signal to one or more computer system devices to respond to the unauthorized access. For example, one or more cryptographic adapter card or computer system functions or secured crypto components may be disabled. | 2017-09-28 |
20170279533 | PLUGGABLE OPTICAL TRANSCEIVER INTERFACE MODULE - A pluggable optical transceiver interface module adapted to operate in a host device includes a housing compliant to a first Multi Source Agreement (MSA), wherein the housing is adapted to plug into the host device; a slot in the housing adapted to receive a pluggable optical transceiver, wherein the pluggable optical transceiver includes an optical transmitter and an optical receiver with associated connectors; and interface circuitry communicatively coupled to the pluggable optical transceiver and to the host device, wherein the interface circuitry is adapted to bridge data and power connectivity to the pluggable optical transceiver according to the first MSA, and wherein the pluggable optical transceiver is not compliant to the first MSA. | 2017-09-28 |
20170279534 | OPTICAL MODULE - Some embodiments of the present application provide an optical module, including: a master control chip, a laser transmitter, and a laser receiver; the laser transmitter and the laser receiver being connected to the master control chip, respectively; where the laser receiver includes: a PIN photodiode, a trans-impedance amplifier with a transimpedance of no less than 43K ohms, a lens, and a shell; the PIN photodiode being electrically connected to the trans-impedance amplifier; the PIN photodiode, the trans-impedance amplifier and the lens being encapsulated within the shell in a manner of transistor out-line; and the lens being coated with an antireflection film. | 2017-09-28 |
20170279535 | INFRARED AUDIO SYSTEMS AND RELATED METHODS - A transmitter for transmitting audio signals via infrared light includes a first mounting board and a first plurality of narrow angle LED emitters and a first plurality of wide angle LED emitters attached to a front surface of the first mounting board. The first plurality of narrow angle LED emitters and the first plurality of wide angle LED emitters are configured to emit a beam of infrared light having a wide portion and a narrow portion, the wide portion being proximate the LED emitters and the narrow portion being distal to the LED emitters. An infrared audio system includes a transmitter and an expansion transmitter. The expansion transmitter may include a second plurality of narrow angle LED emitters and a second plurality of wide angle LED emitters. A method of making a transmitter includes attaching a plurality of narrow angle LED emitters and a plurality of wide angle LED emitters to a mounting board of a transmitter. | 2017-09-28 |
20170279536 | SYSTEMS, DEVICES, AND METHODS FOR PHOTONIC TO RADIO FREQUENCY DOWNCONVERSION - A system, method, and device for RF upconversion. The system can include a laser, two EAMs, a photonic filter, a photonic service filter, two photodiodes, and a mixer. The first EAM can convert a received RF signal into the photonic domain by modulating an optical signal (received from the laser) based on the received RF signal to output a modulated optical signal. The photonic filter can output a filtered optical signal based on the modulated optical signal to the first photodiode which can output a filtered RF signal in the RF domain. The second EAM can output an LO modulated optical signal based on a received LO to the service filter which can output a filtered LO optical signal to the second photodiode which can output a filtered LO signal in the RF domain. The mixer can mix the filtered RF and LO signals to generate an IF signal. | 2017-09-28 |
20170279537 | DYNAMIC BEAM STEERING OPTOELECTRONIC PACKAGES - Apparatuses including integrated circuit (IC) optical assemblies and processes for operation of IC optical assemblies are disclosed herein. In some embodiments, the IC optical assemblies include a transmitter component to provide light output having a particular beam direction, and a transmitter driver component. The transmitter component includes a light source optically coupled to a plurality of waveguides, a plurality of gratings, and a plurality of phase tuners. The transmitter driver component causes a light provided by the light source to be centered at a particular wavelength and a particular phase to be induced by each phase tuner of the plurality of phase tuners on a respective waveguide of the plurality of waveguides, in accordance with a feedback signal, to generate the light output having the particular beam direction. | 2017-09-28 |
20170279538 | OPTICAL COMMUNICATION SYSTEM, TRANSMISSION STATION, AND METHOD OF OPTICAL COMMUNICATION - An optical communication system includes an optical transmitter, a plurality of optical receivers, and a splitter that splits light transmitted by the optical transmitter to the plurality of optical receivers. The optical transmitter includes a variable-wavelength light source capable of transmitting light of a first wavelength and light of a third wavelength between the first wavelength and a second wavelength. A first optical receiver of the plurality of optical receivers includes a first optical filter having a first transmission band including the first and third wavelengths, and a first receiving unit that receives light having passed through the first optical filter. A second optical receiver of the plurality of optical receivers includes a second optical filter having a second transmission band including the second and third wavelengths, and a second receiving unit that receives light having passed through the second optical filter. | 2017-09-28 |
20170279539 | WAVELENGTH DIVISION MULTIPLEXING OPTICAL RECEIVER AND DRIVING METHOD FOR SAME - The invention relates to a wavelength division multiplexing optical receiver that is provided with a polarization splitting grating coupler and a driving method for the same, where the power consumption is reduced, and at the same time, a degradation in the receiver sensitivity is suppressed. Two monitor photodetectors configured to monitor the light intensity of a first polarization component and a second polarization component separated by a polarization splitting optical coupler are provided, and a control circuit is provided in order to allow a semiconductor optical amplifier that amplifies the first polarization component and another semiconductor optical amplifier that amplifies the second polarization component in accordance with the signal intensity ratio of the two monitor photodetectors to amplify light with different light gains. | 2017-09-28 |
20170279540 | COMMUNICATION DEVICE, QUANTUM KEY DISTRIBUTION SYSTEM, QUANTUM KEY DISTRIBUTION METHOD, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a communication device is connected to another communication device through a quantum communication channel and a classical communication channel to share an encryption key. The device includes a photon detector, a measurer, a difference generator, and a transmitter. The photon detector is configured to detect photons transmitted from the other communication device through the quantum communication channel. The measurer is configured to measure time when each photon is detected by the photon detector as time stamp information. The difference generator is configured to generate difference time stamp information as a difference between time obtained by adding particular information to the time indicated by the time stamp information previously measured by the measurer and time indicated by the time stamp information subsequently measured by the measurer. The transmitter is configured to transmit the difference time stamp information to the other communication device through the classical communication channel. | 2017-09-28 |
20170279541 | Integrated Multiplexed RF-to-Optical Interconnect for Portable Electronic Devices - An information handling system, a display panel, and a method for providing optical communication of signals within a display panel is provided. The information handling system comprises a radio frequency (RF) transceiver subsystem, an antenna subsystem, and a display panel, the display panel for displaying graphic images, the display panel comprising an optical communication channel coupled to the RF transceiver subsystem and the antenna subsystem, the optical communication channel for communicating transmit signals from the RF transceiver subsystem to the antenna subsystem and for communicating receive signals from the antenna subsystem to the RF transceiver subsystem. | 2017-09-28 |
20170279542 | Local Tone Generation - A mobile device that generates and transmits a human-inaudible acoustic signal, which encodes a symbol sequence representing a binary message, for delivery as audio content, is disclosed. The mobile device encodes the binary message into a sequence of symbols that are each associated with frequency characteristics and generates and transmits the human-inaudible acoustic signal, based on the frequency characteristics of the symbols. A further mobile device that receives and decodes a human-inaudible acoustic signal, which encodes a symbol sequence representing a binary message, embedded within audio content, is disclosed. The mobile device repeatedly performs a frequency domain transformation of samples of the signal to generate a symbol sequence, and performs error correction decoding upon the symbol sequence to determine the validity of the symbol sequence. The mobile device then transmits the symbol sequence as the decoded equivalent of the human-inaudible acoustic signal, once a valid symbol sequence has been identified. | 2017-09-28 |
20170279543 | BODY COUPLED COMMUNICATION DEVICES AND SYSTEMS AS WELL AS A DESIGN TOOL AND METHOD FOR DESIGNING THE SAME - Based on new insights in body coupled communication systems, herein a design tool for designing a body coupled communication apparatus, and products for use in body coupled communication systems are provided herein. | 2017-09-28 |
20170279544 | ELECTRIC FIELD INTENSITY DISTRIBUTION MEASUREMENT DEVICE AND ELECTRIC FIELD INTENSITY DISTRIBUTION MEASUREMENT METHOD - An electric field intensity distribution measurement device | 2017-09-28 |