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Class Information
Number: 375/141
Name: Pulse or digital communications > Spread spectrum > Direct sequence > End-to-end transmission system
Description: Subject matter comprising at least two stations where signals are transmitted and received between stations.










Sub-classes under this class:

Class Number Class Name Patents
375/142 Having correlation-type receiver 906
375/143 Having matched-filter-type receiver 322
375/144 Having multi-receiver or interference cancellation 671
375/145 Having specific signaling for code synchronization 510


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
8705656 Transmission and reception apparatus and method Apr. 22, 2014
8705459 Method for multiplexing control signals in a mobile communication system Apr. 22, 2014
8693522 Pilot sending method and apparatus Apr. 8, 2014
8693523 QAM CDMA and TDMA communication methods Apr. 8, 2014
8693526 Unipolar spread spectrum modulation for low computation and power cost signal multiplexing with application to fNIRS measurments Apr. 8, 2014
8693602 Method and device for mono- and multi-antenna reception for Alamouti-type links Apr. 8, 2014
8670477 System and apparatus for detecting interference in radio bands Mar. 11, 2014
8665975 Method for receiving data in multi input multi output Mar. 4, 2014
8665856 Data processing apparatus, communication device, and data processing method Mar. 4, 2014
8660165 System and method for detecting spread spectrum signals in a wireless environment Feb. 25, 2014
8660224 Method and system for pre-equalization in a single weight spatial multiplexing MIMO system Feb. 25, 2014
8654817 Combining signals with a shuffled-hadamard function Feb. 18, 2014
8654816 Methods and devices for determining a transmission rank Feb. 18, 2014
8654815 System and method for distributed antenna wireless communications Feb. 18, 2014
8649416 Signal processing apparatus, information processing apparatus, signal processing method, data display method, and program Feb. 11, 2014
8649422 Method for transmitting a signal over a power line channel and power line communication modem Feb. 11, 2014
8644362 Hybrid pseudo-random noise and chaotic signal implementation for covert communication Feb. 4, 2014
8644367 Antenna beam scan unit and wireless communication system using antenna beam scan unit Feb. 4, 2014
8638833 Method and apparatus for physical layer control communications in a wireless communications protocol Jan. 28, 2014
8630748 Method and apparatus for access and/or starting verification Jan. 14, 2014
8625653 Method for managing the operation of a wireless apparatus configured to exchange information with a millimeter-wave communication device, and corresponding apparatus Jan. 7, 2014
8625701 Antenna selection and training using a spatial spreading matrix for use in a wireless MIMO communication system Jan. 7, 2014
8619839 Interface module for a unit of an antenna distribution system, and antenna distribution system Dec. 31, 2013
8620226 Enhanced wideband transceiver Dec. 31, 2013
8615058 Signal acquisition system Dec. 24, 2013
8615265 Coded system for radio frequency communication Dec. 24, 2013
RE44635 Orthogonal complex spreading method for multichannel and apparatus thereof Dec. 10, 2013
8599727 Method for transmitting control information in wireless communication system and apparatus therefor Dec. 3, 2013
8594153 Spread-spectrum receiver with progressive fourier transform Nov. 26, 2013
8576738 Method, apparatus and system for sharing a subchannel Nov. 5, 2013
8576893 Systems and methods for high data rate ultra wideband communication Nov. 5, 2013
8571086 System and method for DIDO precoding interpolation in multicarrier systems Oct. 29, 2013
8565209 Communication apparatus, communication system, communication method and computer-readable storage medium Oct. 22, 2013
8565284 Spread spectrum clock generator and method Oct. 22, 2013
8565288 Apparatus and method for performing delay-locked loop operation on receiving signal Oct. 22, 2013
8548027 Multi-ary error-correcting code transmitting and receiving apparatuse, data transmission system, and relevant method Oct. 1, 2013
8548026 Enhanced uplink packet transfer Oct. 1, 2013
8542715 Ship based cellular and satellite communication Sep. 24, 2013
8542716 Continuous time chaos dithering Sep. 24, 2013
RE44507 Orthogonal complex spreading method for multichannel and apparatus thereof Sep. 24, 2013
8537745 Multiplexing arrangements for multiple receive antennas Sep. 17, 2013
8537878 Spread-spectrum codes generation Sep. 17, 2013
8532159 Transmitter, receiver, wireless communication system, and communication method Sep. 10, 2013
8532084 Method and system for synchronization in communication system Sep. 10, 2013
8526376 Radio communication mobile station device and response signal spread sequence control method Sep. 3, 2013
8526543 Quadrature imbalance estimation using unbiased training sequences Sep. 3, 2013
8519825 RFID transponder Aug. 27, 2013
8514908 Integrated circuit for response signal spreading Aug. 20, 2013
8509284 Symbol duration dithering for secured chaotic communications Aug. 13, 2013
8509285 Base station apparatus and response signal receiving method Aug. 13, 2013

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