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Class Information
Number: 330/151
Name: Amplifiers > With amplifier bypass means (e.g., forward feed)
Description: Subject matter wherein means are provided to by-pass all or a part of the signal across the amplifier or of one or more stages of a cascade amplifier.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8643433 Bypass power amplifier for improving efficiency at low power Feb. 4, 2014
8618880 Power amplifier pre-distortion Dec. 31, 2013
8619847 Reconditioning equalizer filter for non-constant envelop signals Dec. 31, 2013
8610499 Radio frequency (RF) amplifier utilizing a predistortion circuit and related techniques Dec. 17, 2013
8582694 Adaptive digital receiver Nov. 12, 2013
8576945 Method of and apparatus for signal amplification Nov. 5, 2013
8520767 Transmission circuit and communication apparatus using polar modulation method Aug. 27, 2013
8519790 Power amplifier linearization using cancellation-based feed forward methods and systems Aug. 27, 2013
8514020 Temperature compensated feedforward linearizer Aug. 20, 2013
8498322 Spread-spectrum pilot signals in a communications transmitter Jul. 30, 2013
8494096 Automatically setting an operative state of a wideband amplifier Jul. 23, 2013
8489056 Frequency agile filter using a digital filter and bandstop filtering Jul. 16, 2013
8472906 Systems and methods for recovery of a sub-carrier signal from a stereophonic multiplexed signal Jun. 25, 2013
8442451 Transmitter and receiver impedence control using shunt switches May. 14, 2013
8436624 Signal acquisition system having reduced probe loading of a device under test May. 7, 2013
8410846 Variable gain amplifier Apr. 2, 2013
8385871 Frequency agile filter using a digital filter and bandstop filtering Feb. 26, 2013
8379699 Spread spectrum pilot signals in an electronic duplexer Feb. 19, 2013
8369906 Antenna compensation system and method in a communications device Feb. 5, 2013
8369446 Transmitter Feb. 5, 2013
8358170 Power amplifier linearization using cancellation-based feed forward methods and systems Jan. 22, 2013
8351874 System and method for adaptive antenna impedance matching Jan. 8, 2013
8324964 High efficiency multiple power mode linear radio frequency power amplifier Dec. 4, 2012
8260238 Systems and methods for recovery of a sub-carrier signal from a stereophonic multiplexed signal Sep. 4, 2012
8238853 Amplitude error de-glitching circuit and method of operating Aug. 7, 2012
8229377 Dual antenna communications device Jul. 24, 2012
8204456 Systems and methods for spurious emission cancellation Jun. 19, 2012
8149051 Solid-state image sensor Apr. 3, 2012
8145166 Enhanced programmable automatic level control Mar. 27, 2012
8130874 By-pass arrangement of a low noise amplifier Mar. 6, 2012
8102940 Receive frequency band interference protection system using predistortion linearization Jan. 24, 2012
8089312 Amplifying circuit with bypass circuit, and electronic device using the same Jan. 3, 2012
8086211 Magnetically differential input Dec. 27, 2011
8054127 Feedforward distortion compensation amplifier Nov. 8, 2011
8030998 Active feed forward amplifier Oct. 4, 2011
7944989 Quadrature modulation apparatus, method, program, and recording medium May. 17, 2011
7940106 Apparatus for generating a correction signal May. 10, 2011
7928800 Programmable compensation network for operational amplifiers Apr. 19, 2011
7915954 Amplifier predistortion and autocalibration method and apparatus Mar. 29, 2011
7907678 Power series predistorter and control method thereof Mar. 15, 2011
7902922 Feedforward amplifier and control method thereof Mar. 8, 2011
7869770 Apparatus, methods and articles of manufacture for a multi-band switch Jan. 11, 2011
7856105 Apparatus and method for processing of amplifier linearization signals Dec. 21, 2010
7848403 Enhanced reconditioning equalizer filter chain for multi-carrier signals Dec. 7, 2010
7834688 Linearised power amplifier Nov. 16, 2010
7817713 Enhanced reconditioning equalizer filter for non-constant envelop signals Oct. 19, 2010
7804915 Distortion compensation circuit and method Sep. 28, 2010
7796687 Enhanced reconditioning equalizer filter chain for multi-carrier signals with different technologies Sep. 14, 2010
7791413 Linearizing technique for power amplifiers Sep. 7, 2010
7756486 Transmitter and receiver impedance control using shunt switches Jul. 13, 2010

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