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Class Information
Number: 375/219
Name: Pulse or digital communications > Transceivers
Description: Subject matter in which a transmitter and a receiver are at the same location and transmit and receive over the same medium to-and-from the same remote station.










Sub-classes under this class:

Class Number Class Name Patents
375/221 Loopback mode 256
375/222 Modems (data sets) 2,439
375/220 Transmission interface between two stations or terminals 910


Patents under this class:

Patent Number Title Of Patent Date Issued
8331429 Apparatus and methods for improved high-speed communication systems Dec. 11, 2012
8331427 Data processing apparatus Dec. 11, 2012
8331426 Method, system and apparatus for improving throughput performance of space division multiple access system Dec. 11, 2012
8331425 Apparatus, system and method for providing a multiple input/multiple output (MIMO) channel interface Dec. 11, 2012
8331424 Serialization of multi-band sequence keying for ultra wideband receiver architecture with reduced complexity and power consumption Dec. 11, 2012
8331423 Relaying apparatus and method in wireless communication system Dec. 11, 2012
8325791 System and method for providing adaptively equalized data signal with alternately adjusted data signal boost and sliced data signal amplitude Dec. 4, 2012
8325788 Precoding signaling in a MIMO wireless communication system Dec. 4, 2012
8325714 Serial-to-parallel transceiver with programmable parallel data path width Dec. 4, 2012
8325074 Method and circuit for continuous-time delta-sigma DAC with reduced noise Dec. 4, 2012
8320555 Method and apparatus for determining a change in network-generated crosstalk levels caused by a multi-line phone Nov. 27, 2012
8320505 Apparatus and method for receiver in multiple antenna system Nov. 27, 2012
8320502 Digital demodulating apparatus, digital receiver, controlling method of the apparatus, computer program product, and recording medium recording thereon the product Nov. 27, 2012
8320488 Method for transmitting and receiving signals in open-loop spatial multiplexing mode Nov. 27, 2012
8320480 Method for bit-loading in a multi-tone DSL system Nov. 27, 2012
8320471 Transmission device for differential communication Nov. 27, 2012
8320439 Methods and apparatus for adaptive link partner transmitter equalization Nov. 27, 2012
8320436 Calibrating received signal measurements in a communication device Nov. 27, 2012
8320433 Compression of baseband signals in base transceiver system interfaces Nov. 27, 2012
8320432 Device and method for precoding vectors in a communication system Nov. 27, 2012
8315574 Management of variable-rate communication links Nov. 20, 2012
8315324 Method for transmitting and receiving downlink control information Nov. 20, 2012
8315294 Method for searching pilot signals to synchronize a CDMA receiver with an associated transmitter Nov. 20, 2012
8315293 Transfer of encoded data Nov. 20, 2012
8315292 Communication apparatus Nov. 20, 2012
8311489 Closed-loop multiple-input-multiple-output scheme for wireless communication based on hierarchical feedback Nov. 13, 2012
8311177 Clock generating circuit, transceiver and related method Nov. 13, 2012
8311145 Bit-error rate in fixed line-rate systems Nov. 13, 2012
8311140 Infrared, CDMA and OFDM signal transmission methods Nov. 13, 2012
8311135 Wireless communication apparatus Nov. 13, 2012
8311087 Methods and apparatus for monitoring voice quality on a wireless communication device Nov. 13, 2012
8311084 Precoding signaling in a MIMO wireless communication Nov. 13, 2012
8311083 Joint transmit and receive I/Q imbalance compensation Nov. 13, 2012
8311082 Wideband digital radio with transmit modulation cancellation Nov. 13, 2012
8310276 Differential transmission circuit Nov. 13, 2012
8306813 Encoding device and encoding method Nov. 6, 2012
8306096 Interference reduction using variable digital-to-analog converter (DAC) sampling rates Nov. 6, 2012
8306093 Method and apparatus for multipath mitigation Nov. 6, 2012
8300725 Radio transmission device, radio reception device, radio transmission method, and radio reception method Oct. 30, 2012
8300724 Digital transceiver Oct. 30, 2012
8300716 Link adaptation for OFDM systems Oct. 30, 2012
8300711 Adaptive differential pulse code modulation/demodulation system and method Oct. 30, 2012
8300682 Signal processing system, filter device and signal processing method Oct. 30, 2012
8300680 Apparatus and method for dynamic scaling of ADC sampling rate to avoid receiver interference Oct. 30, 2012
8300679 Systems and methods for enhancing performance of a low-power transceiver Oct. 30, 2012
8295402 Optimal blind channel estimation for DQPSK demodulation Oct. 23, 2012
8295391 Transmission method and transmission apparatus Oct. 23, 2012
8295388 Efficient digital upconverter Oct. 23, 2012
8295335 Techniques to control uplink power Oct. 23, 2012
8295334 Signal transmission system and receiving apparatus Oct. 23, 2012











 
 
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