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Class Information
Number: 332/107
Name: Modulators > Pulse or interrupted continuous wave modulator > Including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation
Description: Subject matter including the neutralization of an undesirable characteristic of a pulse modulator or its signals.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7519129 Precoding of contention words in a fixed wireless access system Apr. 14, 2009
7362819 Device and method for reducing peaks of a composite signal Apr. 22, 2008
7327202 Optimization for an IQ modulator Feb. 5, 2008
7263136 Predistortion modulator Aug. 28, 2007
7248644 Circuit and method for compensating for nonliner distortion of power amplifier Jul. 24, 2007
7184491 Wireless communication apparatus Feb. 27, 2007
7158580 Data pulse spectrum control Jan. 2, 2007
7154923 Method and apparatus for providing a modulation current Dec. 26, 2006
7142819 Circuits and methods for controlling switching noise in switched-mode circuits Nov. 28, 2006
7116916 Method and apparatus for compacting data in a communication network Oct. 3, 2006
7078964 Detection of DC output levels from a class D amplifier Jul. 18, 2006
7046738 8-PSK transmit filtering using reduced look up tables May. 16, 2006
6975177 Method and system for a generation of a two-level signal Dec. 13, 2005
6970052 Modulator immune from temperature variation-induced change in modulation factor Nov. 29, 2005
6943640 Current source modulator Sep. 13, 2005
6930563 Self-adjusting I-Q modulator system Aug. 16, 2005
6919771 Digital amplifier Jul. 19, 2005
6809607 Circuit and method for compensating for non-linear distortion Oct. 26, 2004
6518849 Dynamic delay compensation versus average switching frequency in a modulator loop and methods thereof Feb. 11, 2003
6414560 Loop delay compensation for a digital power amplifier Jul. 2, 2002
6400415 System and method for predistorting signals to be amplified Jun. 4, 2002
6400777 Linear modulator Jun. 4, 2002
6359524 Modulation pulse-top ripple compensation for a travelling wave tube pulser Mar. 19, 2002
6337606 Digital communications modulator having a modulation processor which supports high data rates Jan. 8, 2002
6320912 Digital modulator Nov. 20, 2001
6246865 Device and method for controlling distortion characteristic of predistorter Jun. 12, 2001
6198778 Method and device for setup of clipping noise of a multicarrier modulation Mar. 6, 2001
6194978 Interrupt modulation method and apparatus Feb. 27, 2001
6052037 Modulation method and apparatus Apr. 18, 2000
6011815 Compensated .DELTA..SIGMA. controlled phase locked loop modulator Jan. 4, 2000
6009121 Method and device for generating signal constellations in PCM space for high speed data communications Dec. 28, 1999
5995555 Precoded waveshaping transmitter for a twisted pair which eliminates the need for a filter Nov. 30, 1999
5909153 Method and apparatus for compensating for delays in modulator loops Jun. 1, 1999
5854812 Method of digital transmission of messages using dynamic-range-limited precoding Dec. 29, 1998
5838210 Method and apparatus for generating a modulated signal Nov. 17, 1998
5666385 Jitter compensation circuit Sep. 9, 1997
5661442 Amplitude control system having parallel integrating signal paths Aug. 26, 1997
5625647 Transmitter having automatic level control function Apr. 29, 1997
5577074 Combined clock recovery/frequency stabilization loop Nov. 19, 1996
5574994 Method of correcting carrier leak in a transmitter Nov. 12, 1996
5548286 Analogue and digital convertors using pulse edge modulators with non-linearity error correction Aug. 20, 1996
5499389 Method of compensating the dependence of the useful transmitter signal on the transfer function of a combiner filter Mar. 12, 1996
5448206 Systems with increased information rates using embedded sample modulation and predistortion equalization Sep. 5, 1995
5430763 Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal Jul. 4, 1995
5381109 Pulse step modulator having faulted module detection and compensation Jan. 10, 1995
5351016 Adaptively self-correcting modulation system and method Sep. 27, 1994
5339054 Modulated signal transmission system compensated for nonlinear and linear distortion Aug. 16, 1994
5311142 Amplifier circuit with gain that does not vary with power supply fluctuations May. 10, 1994
5293406 Quadrature amplitude modulator with distortion compensation Mar. 8, 1994
5226167 Microcomputer circuit for attenuating oscillations in a resonant circuit by reversing phase and feeding back resonant circuit output oscillation voltage Jul. 6, 1993

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