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Class Information
Number: 330/85
Name: Amplifiers > Signal feedback > Amplifier in signal feedback path
Description: Subject matter wherein the "signal feedback circuit means" has an amplifier therein, as defined in the class definition, which may have bias control means.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8680919 Impedance adjustments in amplifiers Mar. 25, 2014
8653888 High-frequency signal amplifier Feb. 18, 2014
8626098 Automatic gain control with programmable attack and decay times Jan. 7, 2014
8604872 Highly linear, low-power, transconductor Dec. 10, 2013
8558612 Electronic device and method for an amplifier with resistive feedback Oct. 15, 2013
8558611 Peaking amplifier with capacitively-coupled parallel input stages Oct. 15, 2013
8538354 Method and system for controlling signal transmission of a wireless communication device Sep. 17, 2013
8508217 Output circuit of charge mode sensor Aug. 13, 2013
8509290 Closed-loop digital power control for a wireless transmitter Aug. 13, 2013
8482265 Current balance circuit utilizing multiplexers and triangular wave generators Jul. 9, 2013
8471631 Bias circuit, power amplifier, and current mirror circuit Jun. 25, 2013
8456215 Limiting amplifier and method thereof Jun. 4, 2013
8436684 Apparatus and method for low noise amplification May. 7, 2013
8427239 Apparatus and method for low noise amplification Apr. 23, 2013
8427233 Method and apparatus to linearize transconductors by predistortion Apr. 23, 2013
8390374 Apparatus and method for amplification with high front-end gain in the presence of large DC offsets Mar. 5, 2013
8305140 Linear, large swing active resistive circuit and method Nov. 6, 2012
8279000 Radio-frequency amplifier Oct. 2, 2012
8183923 Constant gain amplifier system with gain control feedback May. 22, 2012
8166318 Power circuit Apr. 24, 2012
8160518 Multi-mode transceiver having tunable harmonic termination circuit and method therefor Apr. 17, 2012
8063700 Amplifier arrangement and method for amplifying a signal Nov. 22, 2011
8008972 Differential signal generator circuit Aug. 30, 2011
7912430 Circuit arrangement for wirelessly exchanging data and RFID chip card device Mar. 22, 2011
7893760 Amplifier circuit Feb. 22, 2011
7880543 Data transmitting circuit and transmitting method Feb. 1, 2011
7852152 N.sup.th order tunable low-pass continuous time filter for fiber optic receivers Dec. 14, 2010
7843513 Automatic adaptation of a video source to a receiver Nov. 30, 2010
7826801 Adaptive forward error corrector and method thereof, and TDD radio repeating apparatus using the same Nov. 2, 2010
7812673 Amplifier having input/output cells with discrete gain steps Oct. 12, 2010
7800440 Variable automatic limit control (ALC) threshold for any desired compression curve Sep. 21, 2010
7795981 Low noise amplifier Sep. 14, 2010
7724085 Impedance matched variable gain low noise amplifier using shunt feed-back May. 25, 2010
7714644 Amplifier circuit May. 11, 2010
7633338 Compensation circuit for amplifiers having multiple stages Dec. 15, 2009
7593484 Radio frequency (RF) receiver with double loop integrated fast response automatic gain control (AGC) Sep. 22, 2009
7551023 Amplifier with low pass filter feedback Jun. 23, 2009
7532427 TMR/GMR amplifier with input current compensation May. 12, 2009
7529053 TMR/GMR amplifier with input current compensation May. 5, 2009
7525391 Linear transimpedance amplifier with multiplexed gain stage Apr. 28, 2009
7515880 Variable gain frequency multiplier Apr. 7, 2009
7483678 Single chip GSM/EDGE transceiver architecture with closed loop power control Jan. 27, 2009
7466196 Detector for automatic gain control Dec. 16, 2008
7423489 Low return loss resistive feedback amplifier Sep. 9, 2008
7420152 Wide-range linear output photo sensor circuit Sep. 2, 2008
7420414 Amplifier, and step-down regulator and operational amplifier using the amplifier Sep. 2, 2008
7403067 Compensation circuit for amplifiers having multiple stages Jul. 22, 2008
7397307 Amplifier arrangement having an adjustable gain, and use thereof Jul. 8, 2008
7372327 Input structure for a power amplifier and associated methods May. 13, 2008
7368982 Balanced output circuit and electronic apparatus utilizing the same May. 6, 2008

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