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Class Information
Number: 330/107
Name: Amplifiers > Signal feedback > Phase shift means in loop path
Description: Subject matter wherein the "loop path" (see (3) Note under subclass 75 for the definition of loop path) includes voltage or current phase shift or delay means which may shift the phase of the voltage or current of one signal frequency or signal frequency feedback component with respect to another or shift the phase of the voltage of the signal or signal feedback with respect to the current.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456688 |
Signal extraction circuit and distortion-compensated amplifier incorporating the same |
Nov. 25, 2008 |
| 7423484 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Sep. 9, 2008 |
| 7409193 |
Predistortion circuit for a transmit system |
Aug. 5, 2008 |
| 7405616 |
Nested transimpendance amplifier |
Jul. 29, 2008 |
| 7403068 |
Method for double sampling loop negative feedback and double sampling negative feedback amplifier |
Jul. 22, 2008 |
| 7382193 |
Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase |
Jun. 3, 2008 |
| 7346100 |
Estimating gain and phase imbalance in upconverting transmitters |
Mar. 18, 2008 |
| 7327192 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Feb. 5, 2008 |
| 7323854 |
Zero cancellation in multiloop regulator control scheme |
Jan. 29, 2008 |
| 7323930 |
Amplifiers with compensation |
Jan. 29, 2008 |
| 7317353 |
Amplification device |
Jan. 8, 2008 |
| 7312656 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Dec. 25, 2007 |
| 7305041 |
Peak suppression of multi-carrier signal with different modulation |
Dec. 4, 2007 |
| 7298205 |
Amplifier and frequency converter |
Nov. 20, 2007 |
| 7295062 |
Pulse modulated power converter |
Nov. 13, 2007 |
| 7295066 |
Adaptive predistortion for a transmit system |
Nov. 13, 2007 |
| 7250815 |
Amplifier distortion management apparatus, systems, and methods |
Jul. 31, 2007 |
| 7242247 |
Distortion compensation circuit, power amplifier using distortion compensation circuit, and distortion compensation signal generating method |
Jul. 10, 2007 |
| 7230484 |
RF signal amplifier unit, RF signal transmission device and RF signal transmitting terminal-antenna |
Jun. 12, 2007 |
| 7221218 |
MOSFET amplifier having feedback controlled transconductance |
May. 22, 2007 |
| 7209000 |
Frequency stabilization of chopper-stabilized amplifiers |
Apr. 24, 2007 |
| 7199656 |
Amplifiers with compensation |
Apr. 3, 2007 |
| 7176757 |
Multistage amplifying devices, and reception device and transmission device using the same |
Feb. 13, 2007 |
| 7173486 |
Nested transimpedance amplifier with capacitive cancellation of input parasitic capacitance |
Feb. 6, 2007 |
| 7173485 |
Phase-compensated filter circuit with reduced power consumption |
Feb. 6, 2007 |
| 7161420 |
Amplifiers with compensation |
Jan. 9, 2007 |
| 7154330 |
Stability compensation for adjustable gain amplifier |
Dec. 26, 2006 |
| 7151405 |
Estimating power amplifier non-linearity in accordance with memory depth |
Dec. 19, 2006 |
| 7142831 |
Crest factor reduction and amplitude pre-distortion for multi-carrier signals |
Nov. 28, 2006 |
| 7132885 |
Low phase shift implementation of the baseband circuitry of a Cartesian feedback loop |
Nov. 7, 2006 |
| 7110718 |
Phase distortion using MOS nonlinear capacitance |
Sep. 19, 2006 |
| 7078967 |
Control of bias voltage |
Jul. 18, 2006 |
| 7061313 |
Dual feedback linear amplifier |
Jun. 13, 2006 |
| 7034613 |
Adaptive predistortion for transmit system with gain, phase and delay adjustments |
Apr. 25, 2006 |
| 7031690 |
Polyphase filter with low-pass response |
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 |
| 7015752 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Mar. 21, 2006 |
| 7009447 |
Outphasing modulator |
Mar. 7, 2006 |
| 7005918 |
Current-to-voltage converting apparatus and impedance measuring apparatus |
Feb. 28, 2006 |
| 6989711 |
Sectional power/voltage/current limiter for a multi-phase amplifier |
Jan. 24, 2006 |
| 6975167 |
Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
Dec. 13, 2005 |
| 6909321 |
Active isolated-integrator low-pass filter with attenuation poles |
Jun. 21, 2005 |
| 6859097 |
Radio frequency feedback amplifier circuits |
Feb. 22, 2005 |
| 6847259 |
Amplifier |
Jan. 25, 2005 |
| 6803812 |
Active filter |
Oct. 12, 2004 |
| 6799020 |
Parallel amplifier architecture using digital phase control techniques |
Sep. 28, 2004 |
| 6784731 |
System and method for reducing amplifier distortion using distortion feedback |
Aug. 31, 2004 |
| 6750710 |
Distortion reduction |
Jun. 15, 2004 |
| 6734729 |
Closed loop power amplifier control |
May. 11, 2004 |
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