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Class Information
Number: 330/2
Name: Amplifiers > With amplifier condition indicating or testing means
Description: Subject matter involving means or methods of testing amplifiers as set forth in the class definition and/or amplifiers as set forth in the class definition combined with indicating means to show a condition of the amplifier.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7436253 |
Method and system for fast calibration to cancel phase feedthrough |
Oct. 14, 2008 |
| 7423477 |
Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
Sep. 9, 2008 |
| 7417394 |
Arrangement for testing a power output stage |
Aug. 26, 2008 |
| 7414469 |
Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
Aug. 19, 2008 |
| 7392021 |
Apparatus, system, and method for measuring power delivered to a load |
Jun. 24, 2008 |
| 7382182 |
System for reducing calibration time of a power amplifier |
Jun. 3, 2008 |
| 7383145 |
Programmable calibration circuit for power supply current sensing and droop loss compensation |
Jun. 3, 2008 |
| 7378902 |
Systems and methods of RF power transmission, modulation, and amplification, including embodiments for gain and phase control |
May. 27, 2008 |
| 7378906 |
Method and apparatus for performing digital pre-distortion |
May. 27, 2008 |
| 7355470 |
Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
Apr. 8, 2008 |
| 7346100 |
Estimating gain and phase imbalance in upconverting transmitters |
Mar. 18, 2008 |
| 7345538 |
Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
Mar. 18, 2008 |
| 7332958 |
Analog-differential-circuit test device |
Feb. 19, 2008 |
| 7330704 |
Electrical signal pre-conditioning |
Feb. 12, 2008 |
| 7323929 |
Apparatus for and method of biasing a transistor |
Jan. 29, 2008 |
| 7295060 |
Characterizing amplitude and phase transfer response of amplifiers using single port measurements |
Nov. 13, 2007 |
| 7286613 |
Process and device for modulating a carrier with amplitude and phase error compensation |
Oct. 23, 2007 |
| 7286060 |
Indicators for vacuum tube replacement devices |
Oct. 23, 2007 |
| 7271649 |
DC offset calibration apparatus |
Sep. 18, 2007 |
| 7268624 |
Differential amplifier offset voltage minimization independently from common mode voltage adjustment |
Sep. 11, 2007 |
| 7265611 |
Self zeroing for critical, continuous-time applications |
Sep. 4, 2007 |
| 7259618 |
Systems and methods for load detection and correction in a digital amplifier |
Aug. 21, 2007 |
| 7259630 |
Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter |
Aug. 21, 2007 |
| 7256647 |
Method and apparatus for presetting an amplifier |
Aug. 14, 2007 |
| 7242244 |
Method and arrangement for testing a power output stage |
Jul. 10, 2007 |
| 7230480 |
Estimating the operating point on a non-linear traveling wave tube amplifier |
Jun. 12, 2007 |
| 7230478 |
Method and apparatus for phase balancing of amplifier modules |
Jun. 12, 2007 |
| 7224215 |
Intelligent RF power control for wireless modem devices |
May. 29, 2007 |
| 7202731 |
Variable distortion limiter using clip detect predictor |
Apr. 10, 2007 |
| 7202737 |
Method of influencing an input signal and predistorter |
Apr. 10, 2007 |
| 7200369 |
LINC power transmitter |
Apr. 3, 2007 |
| 7193461 |
Method and apparatus for performing digital pre-distortion |
Mar. 20, 2007 |
| 7161418 |
Amplifier arrangement and method for calibrating an amplifier arrangement |
Jan. 9, 2007 |
| 7154329 |
Method and apparatus for compensating amplifier output for temperature and process variations |
Dec. 26, 2006 |
| 7151403 |
Adaptive self-calibration method and apparatus |
Dec. 19, 2006 |
| 7138858 |
Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry |
Nov. 21, 2006 |
| 7135916 |
Digitally adjustable amplifier for integrated circuit |
Nov. 14, 2006 |
| 7126413 |
Method and corresponding circuit structure to correlate the transconductance of transistors of different types |
Oct. 24, 2006 |
| 7119611 |
On-chip calibrated source termination for voltage mode driver and method of calibration thereof |
Oct. 10, 2006 |
| 7116167 |
Predistortion linearizer and method thereof |
Oct. 3, 2006 |
| 7091779 |
Non-linear modeling method |
Aug. 15, 2006 |
| 7088173 |
Adjustable multiport power/phase method and system with minimum phase error |
Aug. 8, 2006 |
| 7084703 |
Self-calibrated power amplifier linearizers |
Aug. 1, 2006 |
| 7081791 |
Automatically adjusting low noise amplifier |
Jul. 25, 2006 |
| 7079818 |
Programmable mutlistage amplifier and radio applications thereof |
Jul. 18, 2006 |
| 7071782 |
HF amplifier with switchable gain |
Jul. 4, 2006 |
| 7026865 |
Analogue amplifier with multiplexing capability |
Apr. 11, 2006 |
| 7026866 |
DC offset self-calibration system for a switching amplifier |
Apr. 11, 2006 |
| 7015760 |
Amplifier control based on load impedance and methods |
Mar. 21, 2006 |
| 7005918 |
Current-to-voltage converting apparatus and impedance measuring apparatus |
Feb. 28, 2006 |
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