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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 287
375/222 Modems (data sets) 2,574
375/220 Transmission interface between two stations or terminals 1,033


Patents under this class:

Patent Number Title Of Patent Date Issued
8520783 Receiving device Aug. 27, 2013
8520769 Transmission method, transmission apparatus, reception method, and reception apparatus Aug. 27, 2013
8520722 IF interface Aug. 27, 2013
8519877 Low noise and low power arrangement for playing audio signals Aug. 27, 2013
8516331 Systems for high-speed backplane applications using FEC encoding Aug. 20, 2013
8514993 Method for frequency offset estimation and automatic frequency control for filtered signal with destroyed phase information and signal transceiver Aug. 20, 2013
8514992 Adaptive electronic transmission signal cancellation apparatus for full duplex communication Aug. 20, 2013
8514920 Methods and apparatus for pseudo asynchronous testing of receive path in serializer/deserializer devices Aug. 20, 2013
8514917 Method and apparatus for DSL communication over a 4 wire system Aug. 20, 2013
8514915 Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting Aug. 20, 2013
8514914 IQ imbalance correction method in a wireless communication device including a quadrature modulation/demodulation function Aug. 20, 2013
8509836 Combined open loop/closed loop method for controlling uplink power of a mobile station Aug. 13, 2013
8509835 Reverse link initial power setting using effective radiated power message to compute path loss Aug. 13, 2013
8509358 Viterbi equalization with detection of the nearest constellation points for stage reduction Aug. 13, 2013
8509357 Method and a device for determining if an information word transferred by at least a source has to be relayed Aug. 13, 2013
8509320 Communication circuit and vehicle communication apparatus using the same Aug. 13, 2013
8509291 Open-loop transmit diversity schemes with four transmit antennas Aug. 13, 2013
8509290 Closed-loop digital power control for a wireless transmitter Aug. 13, 2013
8504638 Method circuit device and system for conveying control signaling between media devices Aug. 6, 2013
8503592 Symbol synchronization for communication Aug. 6, 2013
8503563 Transmitter for reducing channel selectivity Aug. 6, 2013
8503554 Selective joint demodulation Aug. 6, 2013
8503551 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Aug. 6, 2013
8503550 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Aug. 6, 2013
8503549 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Aug. 6, 2013
8503518 Voice/Data/RF integrated circuit Aug. 6, 2013
8503517 System and method of an in-band modem for data communications over digital wireless communication networks Aug. 6, 2013
8503516 Method of minimizing feedback overhead using spatial channel covariance in a multi-input multi-output system Aug. 6, 2013
8503515 High speed switch with data converter physical ports and processing unit Aug. 6, 2013
8503514 High speed switch with data converter physical ports Aug. 6, 2013
8502584 Capacitive isolation receiver circuitry Aug. 6, 2013
8498343 System for MIMO equalization of multi-channel transceivers with precoding Jul. 30, 2013
8498328 Energy management for wireless devices Jul. 30, 2013
8498327 Wireless communication apparatus Jul. 30, 2013
8498326 Method and apparatus for forward error correction Jul. 30, 2013
8498322 Spread-spectrum pilot signals in a communications transmitter Jul. 30, 2013
8494849 Method and apparatus for transmitting speech data to a remote device in a distributed speech recognition system Jul. 23, 2013
8494073 Beamforming weight estimation using wideband multipath direction of arrival analysis Jul. 23, 2013
8494038 Common mode noise reduction within differential signal Jul. 23, 2013
8494035 Frequency-domain adaptive feedback equalizer Jul. 23, 2013
8494034 Communication device and communication system Jul. 23, 2013
8494033 Methods providing precoder feedback using multiple precoder indices and related communications devices and systems Jul. 23, 2013
8494032 Network communications device capable of promoting connection quality and method thereof Jul. 23, 2013
8494031 Protocol operation and message design for SDMA data transmission to a plurality of stations Jul. 23, 2013
8494030 Method and system for 60 GHz wireless clock distribution Jul. 23, 2013
8489153 Latency reduction in a low power mode Jul. 16, 2013
8488730 Communication apparatus using synchronized clock signal Jul. 16, 2013
8488715 Destuff circuit and transmission device Jul. 16, 2013
8488659 Remote transmission system Jul. 16, 2013
8488656 Oversampled synthesizer systems and methods Jul. 16, 2013











 
 
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