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Class Information
Number: 329/316
Name: Demodulators > Frequency modulation demodulator > Plural demodulation
Description: Subject matter which utilizes a diverse intermediate type of demodulator within the FM demodulator or combines the outputs of a plurality of FM demodulators or has an output selectable from a plurality of demodulators one of which must be an FM type.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7133467 |
Demodulation apparatus and demodulation method |
Nov. 7, 2006 |
| 7068990 |
Receiver for two orthogonally polarized signals |
Jun. 27, 2006 |
| 7016661 |
Multi-mode receiver for frequency error mitigation |
Mar. 21, 2006 |
| 6927623 |
Amplitude-modulated signal receiving circuit |
Aug. 9, 2005 |
| 6912249 |
Method and system for training a radio receiver |
Jun. 28, 2005 |
| 6901108 |
Apparatus and method for adaptive control |
May. 31, 2005 |
| 6809584 |
Signal transmission and receiving methods optimized for integrated circuit implementation |
Oct. 26, 2004 |
| 6628706 |
Method and apparatus for transforming a channel estimate |
Sep. 30, 2003 |
| 6593805 |
Demodulation apparatus |
Jul. 15, 2003 |
| 6483381 |
Signal transmission and receiving methods optimized for integrated circuit implementation |
Nov. 19, 2002 |
| 6459333 |
Differentiate and divide FM demodulator |
Oct. 1, 2002 |
| 6373883 |
Radio receiver and a radio transmitter |
Apr. 16, 2002 |
| 6297691 |
Method and apparatus for demodulating coherent and non-coherent modulated signals |
Oct. 2, 2001 |
| 6204735 |
Geometrically modulated waves |
Mar. 20, 2001 |
| 6167081 |
Dual mode receiver |
Dec. 26, 2000 |
| 6163209 |
Demodulation of angle modulated carriers using a noncoherent reference |
Dec. 19, 2000 |
| 6037835 |
Multi-mode autonomous selection demodulator |
Mar. 14, 2000 |
| 6005896 |
Radio data communication device and radio data communication method |
Dec. 21, 1999 |
| 5987068 |
Method and apparatus for enhanced communication capability while maintaining standard channel modulation compatibility |
Nov. 16, 1999 |
| 5920238 |
Geometrically modulated waves |
Jul. 6, 1999 |
| 5767738 |
Apparatus and method for demodulating a modulated signal |
Jun. 16, 1998 |
| 5745005 |
Demodulating system for carrier-wave and single pulse modulated signals |
Apr. 28, 1998 |
| 5697086 |
Co-channel FM signal/interference canceller |
Dec. 9, 1997 |
| 5648985 |
Universal radio architecture for low-tier personal communication system |
Jul. 15, 1997 |
| 5648986 |
Receiver in digital radio communication device with selective equalization |
Jul. 15, 1997 |
| 5615411 |
Method and apparatus for composite signal separation and FM demodulation |
Mar. 25, 1997 |
| 5602484 |
Delay-spread sensor and detection switching circuit using the same |
Feb. 11, 1997 |
| 5594755 |
Apparatus for use in equipment providing a digital radio link between a fixed radio unit and a mobile radio unit |
Jan. 14, 1997 |
| 5563556 |
Geometrically modulated waves |
Oct. 8, 1996 |
| 5548243 |
Demodulator for demodulating a single side band signal, a real zero single side band signal and a frequency modulated signal, and a carrier signal reproducing circuit for the demodulator |
Aug. 20, 1996 |
| 5541552 |
Method of and apparatus for demodulating a signal conveyed by multiple carrier |
Jul. 30, 1996 |
| 5461347 |
Apparatus and method for geometrically modulating electromagnetic radiation and a receiver for decoding geometrically modulated signals |
Oct. 24, 1995 |
| 5446421 |
Local oscillator phase noise cancelling modulation technique |
Aug. 29, 1995 |
| 5283531 |
Demodulation apparatus incorporating adaptive equalizer for digital communication |
Feb. 1, 1994 |
| 5214391 |
Demodulation apparatus having multipath detector for selecting a first or second demodulator |
May. 25, 1993 |
| 5179360 |
Transmitting/receiving apparatus switchable between digital and analog modulation modes |
Jan. 12, 1993 |
| 5159282 |
Demodulation apparatus incorporating adaptive equalizer for digital communication |
Oct. 27, 1992 |
| 5119199 |
FM demodulator for video tape recorder |
Jun. 2, 1992 |
| 5095363 |
Method of demodulating multi-standard TV signals and a circuit device for implementing the method |
Mar. 10, 1992 |
| 4992747 |
Multiple reuse of an FM band |
Feb. 12, 1991 |
| 4910468 |
Dual polarization demodulation with cross polarization cancellation |
Mar. 20, 1990 |
| 4908581 |
Frequency demodulator having circuit cancelling undesired signal components |
Mar. 13, 1990 |
| 4870684 |
PLL circuit for generating output signal synchronized with input signal by switching frequency dividing ratio |
Sep. 26, 1989 |
| 4866449 |
Multichannel alignment system |
Sep. 12, 1989 |
| 4864637 |
FMX stereophonic broadcast receiver |
Sep. 5, 1989 |
| 4859958 |
Multiple reuse of an FM band |
Aug. 22, 1989 |
| 4804924 |
Digital double demodulator |
Feb. 14, 1989 |
| 4727580 |
Radio receiver |
Feb. 23, 1988 |
| 4715045 |
System protocol for composite shift keying communication system |
Dec. 22, 1987 |
| 4713689 |
Frequency demodulator for television receiver with time multiplexing |
Dec. 15, 1987 |
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