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Class Information
Number: 329/304
Name: Demodulators > Phase shift keying or quadrature amplitude demodulator
Description: Subject matter where the demodulator extracts the modulating signal from a signal which has undergone phase shift keying modulation or quadrature amplitude modulation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619466 |
Quadrature demodulator |
Nov. 17, 2009 |
| 7609784 |
Signal decoding method and apparatus with dynamic noise threshold |
Oct. 27, 2009 |
| 7579921 |
On-off keying-7-phase shift keying modulation system and method for fiber communication |
Aug. 25, 2009 |
| 7570713 |
System and method for anticipatory receiver switching based on signal quality estimation |
Aug. 4, 2009 |
| 7567633 |
Reception device with data recovery mechanism, adapted to transmission system using a direct spread spectrum sequence |
Jul. 28, 2009 |
| 7564929 |
System for coherent demodulation of binary phase shift keying signals (BPSK) |
Jul. 21, 2009 |
| 7545306 |
Directly sampling radio frequency signals |
Jun. 9, 2009 |
| 7529314 |
Carrier phase detector |
May. 5, 2009 |
| 7528758 |
Flash-type analog to digital conversion circuit for comparing an analog input voltage with a plurality of reference voltages |
May. 5, 2009 |
| 7519134 |
Method and apparatus to determine phase difference between a received analog signal and a reference signal based upon a local oscillator |
Apr. 14, 2009 |
| 7514993 |
IQ demodulator |
Apr. 7, 2009 |
| RE40695 |
Clock phase detecting circuit and clock regenerating circuit each arranged in receiving unit of multiplex radio equipment |
Apr. 7, 2009 |
| 7502424 |
Maximizing data rate by adjusting codes and code rates |
Mar. 10, 2009 |
| 7492836 |
Wireless data communication demodulation device and demodulation method |
Feb. 17, 2009 |
| 7492835 |
Synchrodyning apparatus |
Feb. 17, 2009 |
| 7486131 |
Quadrature demodulator and interrogator |
Feb. 3, 2009 |
| 7469022 |
Methods and apparatus for symmetrical phase-shift keying |
Dec. 23, 2008 |
| 7463692 |
Device and method for symbol clock recovery in digital television |
Dec. 9, 2008 |
| 7456682 |
Demodulator and phase compensation method thereof |
Nov. 25, 2008 |
| 7457375 |
Timing extractor, timing extraction method, and demodulator having the timing extractor |
Nov. 25, 2008 |
| 7426246 |
Dual layer signal processing in a layered modulation digital signal system |
Sep. 16, 2008 |
| 7423987 |
Feeder link configurations to support layered modulation for digital signals |
Sep. 9, 2008 |
| 7415078 |
Demodulation for phase modulation |
Aug. 19, 2008 |
| 7409015 |
Adaptive modulation scheme based on cutoff rate with imperfect channel state information |
Aug. 5, 2008 |
| RE40376 |
Radio apparatus carrying out automatic gain control and gain control method |
Jun. 10, 2008 |
| 7362814 |
Memoryless spectrum correction algorithm for non-ideal I/Q demodulators |
Apr. 22, 2008 |
| 7336731 |
Demodulator with phase-adjusting function |
Feb. 26, 2008 |
| 7336732 |
Carrier frequency detection for signal acquisition |
Feb. 26, 2008 |
| 7336717 |
Receiver circuit, in particular for a mobile radio |
Feb. 26, 2008 |
| 7315578 |
Fast soft value computation methods for gray-mapped QAM |
Jan. 1, 2008 |
| 7315587 |
Demodulation method and apparatus based on differential detection system for .pi./4 shifted QPSK modulated wave |
Jan. 1, 2008 |
| RE39983 |
Carrier injecting waveform-based modulation scheme for reducing satellite transponder power requirements and earth terminal antenna size |
Jan. 1, 2008 |
| 7308049 |
Method and apparatus for noncoherent signal processing in pilotless wireless systems |
Dec. 11, 2007 |
| 7302013 |
Multi-mode variable rate digital satellite receiver |
Nov. 27, 2007 |
| 7295638 |
Communication device |
Nov. 13, 2007 |
| 7260158 |
Digital broadcast receiver and digital broadcast receiving method |
Aug. 21, 2007 |
| 7251573 |
Phase detector |
Jul. 31, 2007 |
| 7245672 |
Method and apparatus for phase-domain semi-coherent demodulation |
Jul. 17, 2007 |
| 7242729 |
Signal decoding method and apparatus |
Jul. 10, 2007 |
| 7230999 |
Method for extended coherent data demodulation for GPS receivers |
Jun. 12, 2007 |
| 7203253 |
Method and apparatus of cross-correlation |
Apr. 10, 2007 |
| 7200189 |
Method and system for providing adaptive timing recovery for low power application |
Apr. 3, 2007 |
| 7197136 |
Digital portable telephone set |
Mar. 27, 2007 |
| 7190216 |
Demodulation circuit and receiving set |
Mar. 13, 2007 |
| 7190733 |
Memoryless spectrum correction algorithm for non-ideal I/Q demodulators |
Mar. 13, 2007 |
| 7187728 |
Coding method and use of a receiver with a convolutional decoder |
Mar. 6, 2007 |
| 7173981 |
Dual layer signal processing in a layered modulation digital signal system |
Feb. 6, 2007 |
| 7170930 |
Receiver |
Jan. 30, 2007 |
| 7158577 |
Communication system |
Jan. 2, 2007 |
| 7109787 |
High-efficiency circuit for demodulating carriers in quadrature |
Sep. 19, 2006 |
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