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Class Information
Number: 329/346
Name: Demodulators > Phase modulation demodulator > Input signal combined with local oscillator or carrier frequency signal
Description: Subject matter where the modulated signal input to the demodulator interacts therein with oscillations from a secondary source.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7430247 |
Carrier frequency detection for N-ary phase modulated signal |
Sep. 30, 2008 |
| 7342441 |
Heterodyne receiver array using resonant structures |
Mar. 11, 2008 |
| 7251295 |
Apparatus for recovering carrier |
Jul. 31, 2007 |
| 7109788 |
Apparatus and method of improving impedance matching between an RF signal and a multi- segmented electrode |
Sep. 19, 2006 |
| 7012245 |
Calculation of sensor array induced phase angle |
Mar. 14, 2006 |
| 6782058 |
Device and method for interpolated signal resampling between sampling clock cycles |
Aug. 24, 2004 |
| 6700940 |
Carrier reproduction circuit |
Mar. 2, 2004 |
| 6512799 |
Digital communication system and method for increased bit rates |
Jan. 28, 2003 |
| 6415004 |
Phase detector, timing recovery device using the same, and a demodulator using the timing recovery device |
Jul. 2, 2002 |
| 6411658 |
Demodulation device |
Jun. 25, 2002 |
| 6175269 |
Demodulation unit and method of demodulating a quadrature |
Jan. 16, 2001 |
| 6133802 |
Synchronous carrier recovery circuit and injection locked oscillator |
Oct. 17, 2000 |
| 6018551 |
Method and apparatus for reproducing carrier |
Jan. 25, 2000 |
| 5963351 |
Digital optical receiver with instantaneous Josephson clock recovery circuit |
Oct. 5, 1999 |
| 5949823 |
Data communication system and radio IC card system |
Sep. 7, 1999 |
| 5912929 |
Method and apparatus for performing carrier detection |
Jun. 15, 1999 |
| 5903350 |
Demodulator and method useful for multiplexed optical sensors |
May. 11, 1999 |
| 5841322 |
Phase detector using carrier suppression and oscillator using the phase detector |
Nov. 24, 1998 |
| 5832369 |
Microwave receiver configured to provide non-referenced distance measurements along with signal magnitude measurements |
Nov. 3, 1998 |
| 5793250 |
Phase demodulator selectively using a first or a second detector |
Aug. 11, 1998 |
| 5757857 |
High speed self-adjusting clock recovery circuit with frequency detection |
May. 26, 1998 |
| 5751187 |
Method and device for phase-modulated signals |
May. 12, 1998 |
| 5719527 |
Method and apparatus for amplifying, modulating and demodulating |
Feb. 17, 1998 |
| 5684836 |
Receiver with automatic frequency control |
Nov. 4, 1997 |
| 5656971 |
Phase demodulator having reliable carrier phase synchronization |
Aug. 12, 1997 |
| 5606581 |
Method and apparatus for the cancellation of interference in electrical systems |
Feb. 25, 1997 |
| 5541965 |
Carrier frequency synchronization device using two different B/W filters |
Jul. 30, 1996 |
| 5521548 |
Phase detector |
May. 28, 1996 |
| 5469112 |
Communication device with zero-crossing demodulator |
Nov. 21, 1995 |
| 5406218 |
Phase demodulator receiving inputs from phase detector and binary phase detector |
Apr. 11, 1995 |
| 5398002 |
Automatic frequency control system by quadrature-phase in frequency or phase demodulating system |
Mar. 14, 1995 |
| 5367538 |
Apparatus and method for direct phase digitizing |
Nov. 22, 1994 |
| 5296820 |
Coherent demodulator preceded by non-coherent demodulator and automatic frequency control circuit |
Mar. 22, 1994 |
| 5260975 |
Digital demodulator |
Nov. 9, 1993 |
| 5206601 |
Order statistic signal processor for estimating values of signal parameters and demodulating amplitude-, phase-, and frequency-modulated signals |
Apr. 27, 1993 |
| 5204634 |
Phase-locked loop demodulator having loop filter controlled by lock detector |
Apr. 20, 1993 |
| 5200977 |
Terminal unit apparatus for time division multiplexing access communications system |
Apr. 6, 1993 |
| 5173663 |
Demodulation circuit enabling independent recovery of the carrier and sampling timing |
Dec. 22, 1992 |
| 5157344 |
Digital quadrature phase detector for angle modulated signals |
Oct. 20, 1992 |
| 5142287 |
Technique for demodulating and decoding MLS DPSK transmissions using a digital signal processor |
Aug. 25, 1992 |
| 5128626 |
Coherently demodulating arrangement including quasi-coherent demodulator for PSK signals |
Jul. 7, 1992 |
| 5049830 |
Carrier recovery system and digital phase demodulator |
Sep. 17, 1991 |
| 5015962 |
Phase demodulator and its application to an MLS type landing system |
May. 14, 1991 |
| 4862098 |
Continuous-wave-modulation detectors using prediction methods |
Aug. 29, 1989 |
| 4853944 |
Digital AM/FM/.phi.M demodulator |
Aug. 1, 1989 |
| 4740759 |
Angle demodulator with second order interference prevention |
Apr. 26, 1988 |
| 4706261 |
Differential phase modulation |
Nov. 10, 1987 |
| 4682118 |
Phase shift keying and phase modulation transmission system |
Jul. 21, 1987 |
| 4644561 |
Modem for RF subscriber telephone system |
Feb. 17, 1987 |
| 4636736 |
Variable phase signal demodulator |
Jan. 13, 1987 |
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