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Class Information
Number: 455/109
Name: Telecommunications > Transmitter > Amplitude modulation > Vestigial or single sideband or suppressed carrier
Description: Subject matter where less than two complete sidebands are transmitted, with or without the carrier or two complete sidebands are transmitted without the carrier.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7616688 VSB transmission system for processing supplemental transmission data Nov. 10, 2009
7580694 Contactless integrated circuit with high-efficiency electrical power supply circuit Aug. 25, 2009
7570127 Method and system for spur suppression in modulators Aug. 4, 2009
7555271 Single side band transmissions Jun. 30, 2009
7539247 VSB transmission system for processing supplemental transmission data May. 26, 2009
7522666 VSB transmission system for processing supplemental transmission data Apr. 21, 2009
7382257 Single RF oscillator single-side band modulation for RFID readers with frequency translation and filtering Jun. 3, 2008
7218898 Apparatus and method for frequency generation in mobile communication system May. 15, 2007
7184716 Low cost/low power analog transceiver architecture Feb. 27, 2007
7177609 Chopper-direct-conversion (CDC) radio architecture Feb. 13, 2007
7120397 All-frequency-band SSB radio communication system and radio apparatus Oct. 10, 2006
7107022 Single RF oscillator single-side band modulation for RFID readers using tone insertion during reader reception Sep. 12, 2006
6901246 Suppressed cycle based carrier modulation using amplitude modulation May. 31, 2005
6891898 System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system May. 10, 2005
6889035 Cable-less interconnect architecture for effecting blind coupling of diplexer to radio transceiver May. 3, 2005
6844788 Polar loop transmitter Jan. 18, 2005
6795692 Method and apparatus for transmitting information by radio Sep. 21, 2004
6560293 Apparatus and method for FM remodulation of envelope modulated data signals May. 6, 2003
6539063 System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system Mar. 25, 2003
6532270 Apparatus and method for broadcast band noise reduction in a transmitter with a low IF frequency Mar. 11, 2003
6522213 SSB transmitter Feb. 18, 2003
6430401 Technique for effectively communicating multiple digital representations of a signal Aug. 6, 2002
6418300 Method and device for transmitting mixed analog and digital signals by the same transmitter Jul. 9, 2002
6351500 AM- compatible digital broadcasting method and system Feb. 26, 2002
6178312 Mechanism for automatically tuning transceiver frequency synthesizer to frequency of transmit/receiver filter Jan. 23, 2001
6167241 Technique for performing amplitude modulation without cheating side-bands Dec. 26, 2000
6148320 Multichannel digital signal generation method and apparatus Nov. 14, 2000
6081697 Multi-carrier radio system and radio transceiver implementation Jun. 27, 2000
6078793 High precision controlled gain voice processing system and method Jun. 20, 2000
6005894 AM-compatible digital broadcasting method and system Dec. 21, 1999
5924024 Method and circuit for achieving frequency conversion Jul. 13, 1999
5861781 Single sideband double quadrature modulator Jan. 19, 1999
5825242 Modulator/demodulator using baseband filtering Oct. 20, 1998
5822685 Modulating reflector circuit Oct. 13, 1998
5815532 Method and apparatus for peak-to-average ratio control in an amplitude modulation paging transmitter Sep. 29, 1998
5745273 Device for single sideband modulation of an optical signal Apr. 28, 1998
5694419 Shared resource modulator-demodulator circuits for use with vestigial sideband signals Dec. 2, 1997
5506548 SSB modulator for adjusting the carrier amplitude level of a modulated SSB signal Apr. 9, 1996
5469127 Amplification apparatus and method including modulator component Nov. 21, 1995
5446423 Digital single sideband modulator and method Aug. 29, 1995
5438686 Amplitude-modulated broadcast transmitter for various types of modulation, in particular DSB, SSB and ISB Aug. 1, 1995
5416449 Modulator with harmonic mixers May. 16, 1995
5394118 Digital circuit for the extraction of the phase and envelope signals of a single sideband signal Feb. 28, 1995
5373265 Modulator having oscillator for generating IF and RF signals by division and up-conversion Dec. 13, 1994
5243304 Vestigial sideband modulator for a baseband input signal Sep. 7, 1993
5222250 Single sideband radio signal processing system Jun. 22, 1993
5214397 Modulator using low-pass filter as delay element May. 25, 1993
5200715 Waveform modulation and demodulation methods and apparatus Apr. 6, 1993
5172079 Balanced modulator designed for low supply voltage Dec. 15, 1992
5172231 S-band video signal transmitter Dec. 15, 1992

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