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Class Information
Number: 455/202
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Suppressed carrier
Description: Subject matter relating to a receiver system adapted to derive an output voltage representative of useful information modulated upon a carrier wave in the form of amplitude modulation, the carrier portion of the resultant wave being reduced in amplitude at the transmitter with only one or both of the sideband signals being transmitted to the receiver.

Patents under this class:

Patent Number Title Of Patent Date Issued
8712336 Data unit receiver and sender control method Apr. 29, 2014
8620232 Post filter for spectral domain echo cancellers to handle non-linear echo components Dec. 31, 2013
8457215 Apparatus and method for suppressing noise in receiver Jun. 4, 2013
8175193 Apparatus for recovering carrier wave in digital broadcasting receiver and method therefor May. 8, 2012
7925223 Coil pair with carrier suppression Apr. 12, 2011
7430247 Carrier frequency detection for N-ary phase modulated signal Sep. 30, 2008
6978026 Circuit arrangement for gaining a stereo subcarrier and an RDS carrier Dec. 20, 2005
6831600 Intermodulation suppression for transmit active phased array multibeam antennas with shaped beams Dec. 14, 2004
6829471 Digital baseband receiver in a multi-carrier power amplifier Dec. 7, 2004
6268946 Apparatus for communicating diversity signals over a transmission medium Jul. 31, 2001
6125271 Front end filter circuitry for a dual band GSM/DCS cellular phone Sep. 26, 2000
6081697 Multi-carrier radio system and radio transceiver implementation Jun. 27, 2000
6023614 Method for decoding a suppressed-carrier modulated signal in the presence of a pilot tone, particularly for FM signals Feb. 8, 2000
5781327 Optically efficient high dynamic range electro-optic modulator Jul. 14, 1998
5726973 Method and arrangement for synchronization in OFDM modulation Mar. 10, 1998
5507024 FM data-system radio receiver Apr. 9, 1996
5465396 In-band on-channel digital broadcasting Nov. 7, 1995
4979230 Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference Dec. 18, 1990
4947453 Transparent tone-in band transmitters, receivers and systems Aug. 7, 1990
4759079 Random noise detecting system and method Jul. 19, 1988
4726069 A muiti-mode modulation and demodulation system and method Feb. 16, 1988
4710814 Television sound receiving circuit for at least one sound channel contained in an RF signal Dec. 1, 1987
4646150 Apparatus and method for stereo television sound Feb. 24, 1987
4642573 Phase locked loop circuit for demodulating suppressed carrier signals Feb. 10, 1987
4633484 Receiver unit in radio communication system Dec. 30, 1986
4618996 Dual pilot phase lock loop for radio frequency transmission Oct. 21, 1986
4524389 Synchronous video detector circuit using phase-locked loop Jun. 18, 1985
4509135 Cosine signal correction circuit Apr. 2, 1985
4455680 Method and apparatus for receiving and tracking phase modulated signals Jun. 19, 1984
4430620 Demodulator system for double sideband suppressed carrier amplitude modulation Feb. 7, 1984
4412181 Process for the demodulation of an amplitude modulated signal and demodulator performing this process Oct. 25, 1983
4397039 Instantaneous phase tracking in single sideband systems Aug. 2, 1983
4349785 Phase-controlling feedback circuit for single sideband demodulation Sep. 14, 1982
4336616 Discriminator aided phase lock acquisition for suppressed carrier signals Jun. 22, 1982
4263675 AFT circuit Apr. 21, 1981
4253066 Synchronous detection with sampling Feb. 24, 1981
4241451 Single sideband signal demodulator Dec. 23, 1980
4211975 Local signal generation arrangement Jul. 8, 1980
4165486 Single sideband transceiver Aug. 21, 1979
4135164 Synchronous generating circuit devices with two phase-locked loops and feedback around both Jan. 16, 1979
4048566 Suppressed carrier automatic gain control circuitry Sep. 13, 1977
4002991 Pilot signal extracting circuitry Jan. 11, 1977
3984778 Carrier recovery scheme for a SSB-SC signal Oct. 5, 1976
3973211 Combiner-demodulator for phase shift keyed suppressed carrier signals received over two transmission paths Aug. 3, 1976
3973203 Carrier isolation system Aug. 3, 1976
3970937 Modem for a suppressed carrier communications system Jul. 20, 1976
3969675 Single side-band radio Jul. 13, 1976
3965421 Automatic master-slave carrier switching circuit Jun. 22, 1976

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