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Class Information
Number: 375/332
Name: Pulse or digital communications > Receivers > Angle modulation > Phase shift keying > Plural phase (>2)
Description: Subject matter where the received signal can assume one of at least three possible phases during a bit interval.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8705663 Receiver architecture and methods for demodulating binary phase shift keying signals Apr. 22, 2014
8705665 Process for performing log-likelihood-ratio clipping in a soft-decision near-ML detector, and detector for doing the same Apr. 22, 2014
8665014 I/Q demodulation apparatus and method with phase scanning Mar. 4, 2014
8660203 Data reception using low density parity check coding and constellation mapping Feb. 25, 2014
8654880 Data transmission using low density parity check coding and constellation mapping Feb. 18, 2014
8644424 Receiver apparatus, communication system, reception method and communication method Feb. 4, 2014
8644426 Robust differential receiver for frequency modulated system Feb. 4, 2014
8619924 Circuit, use, and method for controlling a receiver circuit Dec. 31, 2013
8588344 Detecting the modulation type and/or constellation order of a PSK/QAM-modulated signal Nov. 19, 2013
8576954 Method and apparatus of cross-correlation Nov. 5, 2013
8542779 Receiver architecture and methods for demodulating binary phase shift keying signals Sep. 24, 2013
8532227 Method and apparatus for robust and high efficiency FEC frame header recovery Sep. 10, 2013
8521460 Multi-domain test and measurement instrument Aug. 27, 2013
8520780 Communication units, communication system and methods for modulation and demodulation Aug. 27, 2013
8503545 I/Q imbalance compensation Aug. 6, 2013
8503576 Mirror signal IQ-imbalance correction Aug. 6, 2013
8497787 Systems and methods for performing efficient decoding using a hybrid decoder Jul. 30, 2013
8488722 Communication signal decoding and soft demapping methods and systems Jul. 16, 2013
8483321 Method for spreading the spectrum of a narrowband signal Jul. 9, 2013
8466644 Motor driving circuit Jun. 18, 2013
8446986 Method of estimating log-likelihood ratios and relative S-FSK receiver May. 21, 2013
8442158 Method for digital wireless communications May. 14, 2013
8436757 Complex bandpass .DELTA..SIGMA.AD modulator and digital radio receiver May. 7, 2013
8401120 Symbol error detection for bluetooth enhanced data rate packets Mar. 19, 2013
8401121 Symbol error detection for bluetooth basic data rate packets Mar. 19, 2013
8385475 Calibration-free local oscillator signal generation for a harmonic-rejection mixer Feb. 26, 2013
8355470 Digital polarization correction for DBS systems Jan. 15, 2013
8331497 Joint synchronizer and decoder Dec. 11, 2012
8306157 Receiver architecture with digitally generated intermediate frequency Nov. 6, 2012
8295405 Apparatus and method for I/Q mismatch calibration Oct. 23, 2012
8265199 Receiving circuit Sep. 11, 2012
8254499 Digital satellite broadcasting receiving tuner and satellite broadcasting receiving device including the same Aug. 28, 2012
8218696 Receiving apparatus, receiving method, integrated circuit, digital television receiver, and program Jul. 10, 2012
8199847 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying(QPSK) or offset quaternary phase shift keying (OQPSK) Jun. 12, 2012
8199869 Communication apparatus Jun. 12, 2012
8199859 Integrating receiver with precharge circuitry Jun. 12, 2012
8170150 Digitally controlled phase interpolator circuit May. 1, 2012
8155241 System for processing common gain values Apr. 10, 2012
8139688 Differential receiver with frequency offset compensation Mar. 20, 2012
8139689 Hierarchical offset compensation to improve synchronization and performance Mar. 20, 2012
8135094 Receiver I/Q group delay mismatch correction Mar. 13, 2012
8126089 Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats Feb. 28, 2012
8121537 Apparatus and method for uplink channel sounding in a wireless communication system Feb. 21, 2012
8116410 Communication signal decoding and soft demapping methods and systems Feb. 14, 2012
8107560 Method and apparatus for interference cancellation in communication signal processing Jan. 31, 2012
8102949 Bit log likelihood ratio evaluation Jan. 24, 2012
8094767 Method and apparatus for timing and/or frequency synchronization in an RF receiver Jan. 10, 2012
8085880 Amplitude monitor for high-speed signals Dec. 27, 2011
8073080 Method and system for RC-CR quadrature generation with wideband coverage and process compensation Dec. 6, 2011
8064545 Device and method for determining a constellation of a quadrature amplitude modulated signal Nov. 22, 2011

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