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Class Information
Number: 330/149
Name: Amplifiers > Hum or noise or distortion bucking introduced into signal channel
Description: Subject matter wherein the signal has a hum or noise component inadvertently introduced therein, as where there is ineffective filtering of a rectified A.C. power supply or bias, and wherein such objectional component is removed or reduced by the same hum or noise component introduced into the signal path of the amplifier in such manner as to oppose the objectional signal component, thereby removing it from, or reducing it in, the output signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7053709 |
Linearization of an amplifier |
May. 30, 2006 |
| 7050770 |
Linearized amplifier having a bypass circuit |
May. 23, 2006 |
| 7046971 |
Distortion-correcting circuit, integrated circuit, and radio communication device |
May. 16, 2006 |
| 7042286 |
Signal correction techniques |
May. 9, 2006 |
| 7042287 |
System and method for reducing dynamic range and improving linearity in an amplication system |
May. 9, 2006 |
| 7042936 |
Dynamic amplitude tilt equalizer |
May. 9, 2006 |
| 7043313 |
Clock system capable of synchronizing clock frequencies of power processing devices and digital signal processing devices |
May. 9, 2006 |
| 7038540 |
Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier |
May. 2, 2006 |
| 7038541 |
Adaptive feed-forward amplifiers and the like |
May. 2, 2006 |
| 7034612 |
Apparatus and method for compensating pre-distortion of a power amplifier |
Apr. 25, 2006 |
| 7034613 |
Adaptive predistortion for transmit system with gain, phase and delay adjustments |
Apr. 25, 2006 |
| 7035312 |
Pilot signal cycling technique for a control system that reduces distortion produced by electrical circuits |
Apr. 25, 2006 |
| 7035345 |
Adaptive predistortion device and method using digital receiver |
Apr. 25, 2006 |
| 7030693 |
Enhanced predistortion method and apparatus |
Apr. 18, 2006 |
| 7026871 |
Adaptive predistortion for a transmit system |
Apr. 11, 2006 |
| 7026872 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Apr. 11, 2006 |
| 7026873 |
LMS-based adaptive pre-distortion for enhanced power amplifier efficiency |
Apr. 11, 2006 |
| 7023273 |
Architecture and implementation methods of digital predistortion circuitry |
Apr. 4, 2006 |
| 7020293 |
Noise reduction method |
Mar. 28, 2006 |
| 7015751 |
Decorrelated power amplifier linearizers |
Mar. 21, 2006 |
| 7015752 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Mar. 21, 2006 |
| 7012969 |
Distortion compensating apparatus |
Mar. 14, 2006 |
| 7009447 |
Outphasing modulator |
Mar. 7, 2006 |
| 7005919 |
Even order distortion elimination in push-pull or differential amplifiers and circuits |
Feb. 28, 2006 |
| 7002410 |
Adaptive linearization technique for communication building block |
Feb. 21, 2006 |
| 6998909 |
Method to compensate for memory effect in lookup table based digital predistorters |
Feb. 14, 2006 |
| 6993090 |
Distortion compensation apparatus and distortion compensation method |
Jan. 31, 2006 |
| 6993301 |
Lineariser for a signal handling apparatus |
Jan. 31, 2006 |
| 6989711 |
Sectional power/voltage/current limiter for a multi-phase amplifier |
Jan. 24, 2006 |
| 6989713 |
Predistortion circuit, low-distortion power amplifier, and control methods therefor |
Jan. 24, 2006 |
| 6987954 |
Feedback compensation detector for a direct conversion transmitter |
Jan. 17, 2006 |
| 6985020 |
Inline predistortion for both CSO and CTB correction |
Jan. 10, 2006 |
| 6985032 |
Amplifier linearisation |
Jan. 10, 2006 |
| 6985033 |
Circuits and methods for adjusting power amplifier predistortion, and power amplifiers and other devices including the same |
Jan. 10, 2006 |
| 6985035 |
System and method for linearizing a CMOS differential pair |
Jan. 10, 2006 |
| 6982595 |
Method and arrangement relating to electronic compensation |
Jan. 3, 2006 |
| 6977548 |
Predistortion circuit, low-distortion power amplifier, and control methods therefor |
Dec. 20, 2005 |
| 6975167 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Dec. 13, 2005 |
| 6972621 |
Power amplifier |
Dec. 6, 2005 |
| 6972622 |
Optimization of error loops in distributed power amplifiers |
Dec. 6, 2005 |
| 6973139 |
Base station transmitter having digital predistorter and predistortion method thereof |
Dec. 6, 2005 |
| 6970041 |
Linearization method and amplifier arrangement |
Nov. 29, 2005 |
| 6968163 |
Method and transmission circuit for generating a transmission signal |
Nov. 22, 2005 |
| 6968170 |
Adaptive correction of a received signal frequency response tilt |
Nov. 22, 2005 |
| 6963242 |
Predistorter for phase modulated signals with low peak to average ratios |
Nov. 8, 2005 |
| 6963243 |
Amplifier pre-distortion processing based on composite look-up tables |
Nov. 8, 2005 |
| 6960957 |
Predistortion circuit, low-distortion power amplifier, and control methods therefor |
Nov. 1, 2005 |
| 6960958 |
Predistortion circuit, low-distortion power amplifier, and control methods therefor |
Nov. 1, 2005 |
| 6961547 |
Wireless transmitter incorporating a synchronous oscillator in a translation loop |
Nov. 1, 2005 |
| 6958644 |
Active filter circuit with dynamically modifiable gain |
Oct. 25, 2005 |
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