Abstract: An aspect includes an apparatus including a first amplifier; a first field effect transistor (FET) including a first source coupled to an output of the first amplifier, and a first drain for coupling to a first load; and a first gate drive circuit including an input coupled to the output of the first amplifier and an output coupled to a first gate of the first FET. Another aspect includes a method including amplifying a first audio signal using a first audio amplifier to generate a first voltage; generating a first gate voltage based on the first voltage; applying the first gate voltage to a first gate of a first field effect transistor (FET) coupled between the first audio amplifier and a first audio transducer; and applying the first voltage to a first source of the first FET.

Abstract: A reception device includes an interference cancellation unit to extract a symbol from a received signal with a first signal inserted in a time direction of a data symbol, the symbol being a signal during an interval corresponding to the first signal, to reproduce an interference signal during an interval corresponding to the data symbol, and to output a first interference-cancelled signal obtained by extracting the data symbol from a signal obtained by cancelling the interference signal from the received signal, and an interference-power estimation unit to estimate desired signal power by subtracting second average power of a symbol of a first signal, extracted from the received signal, from first average power the data symbol to estimate first noise power by subtracting the desired signal power from third average power of the data symbol, to estimate second noise power from the first noise power, and to estimate interference power by subtracting the second noise power from the second average power.

Abstract: A front-end module includes: a substrate including a first connection member in which at least one first insulating layer and at least one first wiring layer are alternately stacked, a second connection member in which at least one second insulating layer and at least one second wiring layer are alternately stacked, and a core member disposed between the first and second connection members; a radio-frequency component mounted on a surface of the substrate and configured to amplify a main band of an input RF signal or filter bands outside the main band; an inductor disposed on a surface of the core member and electrically connected to the radio-frequency component; and a ground plane disposed on another surface of the core member. The core member includes a core insulating layer thicker than an insulating layer among at least one first insulating layer and the at least one second insulating layer.

Abstract: A connection between a power distribution unit (PDU) and an electric device is identified by generating a data packet containing an identity of the electric device, transmitting the data packet by varying, on a power line connecting an output socket of the PDU to the electric device, a power level between distinct intensities for transmitting distinct logical values of the data packet, sensing, at the PDU, the power level on the power line, reporting, to an identification module, a socket number of the output socket connected to the power line and successive power level data obtained by sensing the power level on the power line, decoding the identity of the electric device by monitoring the successive power level data reported by the PDU, and storing, in a database, a reference between the identity of the electric device, an identity of the PDU, and the socket number.

Abstract: 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.

Abstract: A digital transmitter architecture is disclosed to transmit (TX) multi-gigabit per second data signals on single carriers (SC) or orthogonal frequency division multiplexing (OFDM) carriers at millimeter wave frequencies in either one of a high-resolution modulation mode or a spectral shaping mode. The architecture includes a number of digital power amplifier (DPA) and modulation reconfigurable circuit segments to process individual bits of a data bit stream in parallel according to a specific circuit configuration corresponding to the selected TX mode using a multiplexer to switch between configurations.

Abstract: Embodiments provide a transfer method for wirelessly transferring data in a communication system (e.g. a sensor network or telemetry system). The data includes core data and extension data, wherein the core data is encoded and distributed in an interleaved manner to a plurality of core sub-data packets, wherein the extension data is encoded and distributed in an interleaved manner to a plurality of extension sub-data packets, wherein at least a part of the core data contained in the core sub-data packets is needed for receiving the extension data or extension data packets.

Abstract: A method comprises obtaining a transmission signal to be power-amplified in a power amplifier (361) prior to transmission; separating the transmission signal into two or more polyphase components of the transmission signal; feeding one or more polyphase components of the transmission signal comprised in the two or more polyphase components to each of two or more parallel predistortion circuits (320,321,322); selecting a dedicated predistortion model and dedicated predistortion coefficients for each of the two or more parallel predistortion circuits (320,321,322); performing non-linear memory-based modeling on the transmission signal according to the selected dedicated predistortion models and coefficients using the one or more polyphase components; and combining output signals of the two or more parallel predistortion circuits (320,321,322) to form a predistorted transmission signal (y[n]) to be applied to the power amplifier (361).

Abstract: An electronic device includes a first housing including a power module and a second housing coupled to the first housing. The second housing includes a first antenna communicatively coupled to the power module, and oriented in a first direction. The second housing further includes a second antenna communicatively coupled to the power module, and oriented in a second direction that is different than the first direction. At least one printed circuit board (PCB) is disposed in the second housing and communicatively coupled to the power module, the first antenna, and the second antenna A modem module resides within the second housing and communicatively couples to the power module, the first antenna, the second antenna, and the at least one PCB. An interface resides within the second housing and communicatively couples to the power module, the first antenna, the second antenna, the at least one PCB, and the modem module.

Abstract: A high-frequency signal transmission-reception circuit includes a plurality of band pass filter groups each including a plurality of band pass filter pairs; a first switch including a plurality of band pass filter-side terminal groups each including a plurality of band pass filter-side terminals, and an antenna-side terminal group; a plurality of couplers configured to output respective signal strengths of high-frequency signals transmitted on a plurality of transmission paths; and a second switch including an input terminal group electrically connected to the plurality of couplers, and an output terminal configured to output a detection signal output from one of the plurality of couplers. The first switch electrically connects one band pass filter-side terminal in one band pass filter-side terminal group and one antenna-side terminal, and also electrically connects one band pass filter-side terminal in another band pass filter-side terminal group and another antenna-side terminal.

Abstract: A timing margin detecting circuit is provided. The timing margin detecting circuit comprises a delay element, receiving a first data signal and a first clock signal, configured to generate a second data signal and a second clock signal, wherein the second clock signal has a delay relative to the second data signal; a controller, configured to generate the control signal to control the delay of the second clock signal relative to the second data signal; a sampler, coupled to the delay element, configured to generate a sampled data signal according to the second data signal and the second clock signal; and a bit error rate determination circuit, coupled to the sampler, configured to determine whether the sampled data signal is the same as a predefined test pattern and generate a determination result accordingly; wherein the controller determines a timing margin according to the determination result.

Abstract: A platform that automates providing wireless communication between one or more of a plurality of antennas and a moving vehicle that is traveling along a path. One or more of the plurality of antennas are employed to detect wireless signals communicated by the vehicle and/or wireless devices for the vehicle's passengers. In one or more embodiments, characteristics of the detected wireless signals and the plurality of antennas is employed to select an antenna to provide wireless communication with the vehicle and/or wireless devices for the vehicle's passengers at a current location on the path.

Abstract: A method of operating a communication system is disclosed. The method includes forming a data frame having plural orthogonal frequency division multiplex (OFDM) symbols. A first set of preamble subcarriers is allocated to at least one of the OFDM symbols. A second set of data subcarriers is allocated to said at least one of the OFDM symbols.

Abstract: There is provided a technique of decoding an uplink in a multiple input multiple output wireless communication system in an open radio access network having an open distributed unit (O-DU) and an open radio unit (O-RU). The O-DU (a) constructs a combining matrix for a resource block, and (b) sends the combining matrix to the O-RU. The O-RU (a) utilizes the combining matrix to compress signals on NR antennas per subcarrier into M values, where NR is a number of antennas, and M is less than NR, and (b) sends the M values per subcarrier to the O-DU.

Abstract: A front end radio frequency (RF) module including one or more first filter circuits configured to implement a front end function by filtering first signals communicated between one or more first antenna and a transceiver and one or more second filter circuits configured to implement at least a portion of an additional network function within the front end RF module by filtering second signals communicated between one or more second antennas and the transceiver.

Abstract: A system includes first and second sets of communication devices. A processor coupled to the first set of communication devices produces a first encoded vector and transmits the first encoded vector to the second set of communication devices via a communication channel that applies a channel transformation to the first encoded vector during transmission. A processor coupled to the second set of communication devices receives the transformed signal, detects an effective channel thereof, and identifies left and right singular vectors of the effective channel. A precoding matrix is selected from a codebook of unitary matrices based on a message, and a second encoded vector is produced based on a second known vector, the precoding matrix, a complex conjugate of the left singular vectors, and the right singular vectors. The second encoded vector is sent to the first set of communication devices for identification of the message.

Abstract: A recognition apparatus for extracting first features of an object from a region of the object; obtaining second features of the object at least based on confidence information for first attribute of the object; determining sample information from pre-determined sample information based on the obtained second features; and recognizing the first attribute of the object based on the determined sample information.

Abstract: A millimeter-wave communication system includes a transmitter and a receiver. The transmitter is configured to be connected to a waveguide that is transmissive at millimeter-wave frequencies, the waveguide having a propagation parameter that varies with frequency at the millimeter-wave frequencies. The transmitter is configured to generate a millimeter-wave signal comprising multiple sub-carriers that are modulated with data, wherein each sub-carrier is modulated with a respective portion of the data and is subjected to only a respective fraction of a variation in the propagation parameter, and to transmit the millimeter-wave signal into a first end of the waveguide. The receiver is configured to receive the millimeter-wave signal from a second end of the waveguide, and to extract the data from the multiple sub-carriers.

Abstract: A platform that automates providing wireless communication between one or more of a plurality of antennas and a moving vehicle that is traveling along a path. One or more of the plurality of antennas are employed to detect wireless signals communicated by the vehicle and/or wireless devices for the vehicle's passengers. In one or more embodiments, characteristics of the detected wireless signals and the plurality of antennas is employed to select an antenna to provide wireless communication with the vehicle and/or wireless devices for the vehicle's passengers at a current location on the path.

Abstract: For example, an Enhanced Directional Multi-Gigabit (EDMG) initiator station (STA) of a Beam Refinement Protocol (BRP) Transmit (TX) Sector Sweep (SS) (TXSS) may be configured to, during an initiator BRP TXSS, transmit one or more initiator EDMG BRP-TX packets to an EDMG responder STA; during a responder BRP TXSS following the initiator BRP TXSS, to receive one or more responder EDMG BRP-TX packets from the EDMG responder STA; and to transmit to the EDMG responder STA a BRP frame including feedback based on measurements on the one or more responder EDMG BRP-TX packets.