H03D - Demodulation or transference of modulation from one carrier to another

More topics under "H03D - Demodulation or transference of modulation from one carrier to another" (22,304)
H03D 1 - Demodulation of amplitude-modulated oscillations (4,890)
H03D 11 - Super-regenerative demodulator circuits (117)
H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
H03D 3 - Demodulation of angle-modulated oscillations (6,449)
H03D 5 - Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will (308)
H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673)
H03D 9 - Demodulation or transference of modulation of modulated electromagnetic waves (1,196)
H03D 99 - Subject matter not provided for in other groups of this subclass (9)

Patents for H03D - Demodulation or transference of modulation from one carrier to another (24)
10/2005
10/06/2005	WO2005043745A3 Fast-hopping frequency synthesizer
05/2005
05/12/2005	WO2005043745A2 Fast-hopping frequency synthesizer
05/05/2005	US20050093584 Fast-hopping frequency synthesizer
03/2004
03/30/2004	CA2239889C Decoder for a trellis encoded signal corrupted by ntsc co-channel interference and white noise
07/2001
07/24/2001	CA2194695C A direct conversion receiver
12/2000
12/13/2000	CN1276653A Digital broacast receiver
12/13/2000	CN1276651A Digital broadcast receiver
03/2000
03/01/2000	EP0772905B1 A direct conversion receiver
08/1999
08/24/1999	US5943370 Direct conversion receiver
07/1998
07/28/1998	US5787129 Decoder for a trellis encoded signal corrupted by NTSC co-channel interference and white noise
04/1998
04/23/1998	WO1998016996A1 Decoder for a trellis encoded signal corrupted by ntsc co-channel interference and white noise
05/1997
05/14/1997	EP0772905A1 A direct conversion receiver
11/1996
11/14/1996	WO1996036104A1 A direct conversion receiver
01/1994
01/19/1994	EP0417148B1 Fm radio reception unit
10/1993
10/05/1993	US5251332 FM receiver which detects and responds to receiving and interference states
03/1991
03/20/1991	EP0417148A1 Fm radio reception unit.
12/1989
12/14/1989	WO1989012357A1 Fm reception unit
03/1988
03/15/1988	US4731876 VHF mixer circuit with band dependent switching
08/1985
08/01/1985	WO1985003393A1 Band-dependent switchable vhf mixer circuit arrangement
07/1985
07/31/1985	EP0150037A2 Band-dependent switchable VHF mixer circuit arrangement
08/1981
08/25/1981	CA1107822A1 System and method of modulation and demodulation for optical fibre digital transmission
05/1980
05/06/1980	US4201909 Data-transmission system and method using fiber-optical transmission
06/1979
06/12/1979	CA1056495A1 Phase compressor for phase modulated signal
05/1977
05/03/1977	US4021742 Phase compressor for phase modulated signal