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Class Information
Number: 375/300
Name: Pulse or digital communications > Transmitters > Amplitude modulation
Description: Subject matter in which the pulses are multiplied with a carrier wave so as to produce and transmit at least one sideband equal to the carrier plus or minus the baseband.










Sub-classes under this class:

Class Number Class Name Patents
375/301 Single or vestigial sideband or suppressed carrier 158


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8711956 Modified continuous phase modulation communications system and related methods Apr. 29, 2014
8693560 Transmission apparatus, transmission method, communication system, and communication method Apr. 8, 2014
8693578 Transmission device Apr. 8, 2014
8675769 Constellation map optimization for highly spectrally efficient communications Mar. 18, 2014
8660209 Transmitter and frequency deviation reduction method thereof Feb. 25, 2014
8649460 Techniques for multi-wire encoding with an embedded clock Feb. 11, 2014
8630364 Termination techniques for multi-index continuous phase encoders for wireless networks Jan. 14, 2014
8605746 Data definition apparatus, systems, and methods Dec. 10, 2013
8599965 Wireless communication apparatus Dec. 3, 2013
8594233 Quadrature communications device with power combiner and related methods Nov. 26, 2013
8588326 System and method for mapping symbols for MIMO transmission Nov. 19, 2013
8588330 Quadrature communications device with I antennas and Q antennas and related methods Nov. 19, 2013
8576942 High efficiency transmitter Nov. 5, 2013
8571134 Polar transmitter Oct. 29, 2013
8565344 Transmission circuit and communication device Oct. 22, 2013
8565347 Antenna measurement system and method Oct. 22, 2013
8553802 Quadrature communications device with I antennas and Q antennas and modulated power supply and related methods Oct. 8, 2013
8548090 Transmitting apparatus and method in mobile communications system Oct. 1, 2013
8532590 Digital phase feedback for determining phase distortion Sep. 10, 2013
8526895 Systems and methods of transmitter protection for wireless communications Sep. 3, 2013
8520766 Transmitter and communication apparatus Aug. 27, 2013
8520767 Transmission circuit and communication apparatus using polar modulation method Aug. 27, 2013
8514969 Amplitude control circuit, polar modulation transmission circuit, and polar modulation method Aug. 20, 2013
8513975 Device and method for enabling multi-value digital computation and control Aug. 20, 2013
8509342 System and method for delivery of video, content on demand and IP packets Aug. 13, 2013
8509348 Up-converted and amplified transmission signal using log-antilog Aug. 13, 2013
8503573 Bits-to-symbol mapping method for 4+12+16 APSK modulation Aug. 6, 2013
8494005 Technique for adjusting a phase relationship among modulation symbols Jul. 23, 2013
8494081 Transmission device Jul. 23, 2013
8488715 Destuff circuit and transmission device Jul. 16, 2013
8488686 Communication channel calibration with nonvolatile parameter store for recovery Jul. 16, 2013
8483295 Encoded signal arrangement method in multi-carrier communication and communication device Jul. 9, 2013
8483311 Method, apparatus and computer program product for providing a data encoding/decoding scheme Jul. 9, 2013
8483312 Methods and apparatus for reducing the average-to-minimum magnitude ratio of communications signals in communications transmitters Jul. 9, 2013
8477870 Transmitter including polar modulation circuit Jul. 2, 2013
8472558 Radio transmission device and radio transmission method Jun. 25, 2013
8472896 Method and apparatus for transformer power combiner and dynamic power control for outphasing power amplifiers Jun. 25, 2013
8451934 Method and system for increasing throughput of a wireless channel using multipath transmission May. 28, 2013
8442153 Transmission circuit May. 14, 2013
8422579 Quadrature amplitude modulation via modified-square signal point constellation Apr. 16, 2013
8422588 Variable-size mixer for high gain range transmitter Apr. 16, 2013
8417195 Method and apparatus adapted to transmit data Apr. 9, 2013
8411788 Digital transmitters for wireless communication Apr. 2, 2013
8411793 Digital amplitude modulation Apr. 2, 2013
8406706 Mobile terminal and method of controlling a driving voltage of a power amplifier therein Mar. 26, 2013
8385468 Asynchronous delta-sigma modulator and a method for the delta-sigma modulation of an input signal Feb. 26, 2013
8385456 Wireless radio frequency signal transceiving system Feb. 26, 2013
8379758 Power supply apparatus and power supply method Feb. 19, 2013
8369442 Communicating a signal according to ASK modulation and PSK modulation Feb. 5, 2013
8364099 Methods and apparatus for controlling leakage and power dissipation in radio frequency power amplifiers Jan. 29, 2013

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