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Class Information
Number: 330/136
Name: Amplifiers > With control of power supply or bias voltage > With control of input electrode or gain control electrode bias > Bias control signal from input of amplifier
Description: Subject matter wherein "the bias control voltage" is derived from the input circuit of the amplifying device.










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

Patent Number Title Of Patent Date Issued
8710925 RF power amplifier circuit with mismatch tolerance Apr. 29, 2014
8704594 Dual rail out-phased envelope tracking modulator Apr. 22, 2014
8686792 Amplifying device Apr. 1, 2014
8680921 Amplifying apparatus, transmitter, and amplifying apparatus control method Mar. 25, 2014
8675725 Integrated circuit, communication unit and method for improved amplitude resolution of an RF-DAC Mar. 18, 2014
8669811 Radio-frequency power amplifier with fast envelope tracking Mar. 11, 2014
8665017 Amplifier circuit and radio communication apparatus Mar. 4, 2014
8665018 Integrated circuit, wireless communication unit and method for a differential interface for an envelope tracking signal Mar. 4, 2014
8665016 Supply tracking Mar. 4, 2014
8659355 Power supply arrangement for multi-stage amplifier Feb. 25, 2014
8655289 Distortion compensation device, transmitter, and distortion compensation method Feb. 18, 2014
8653902 Transmission circuit, communication apparatus, and transmission method Feb. 18, 2014
8653886 Method and arrangement in a mobile communications system Feb. 18, 2014
8648659 Digital pre-distortion power amplifying apparatus and method for digitally controlling synchronization thereof Feb. 11, 2014
8649743 Transmitter linearized using inversing and non-inversing transform processing sections and method therefor Feb. 11, 2014
8643434 Adjustable gain audio power amplifying circuit Feb. 4, 2014
8643435 Apparatus and method for expanding operation region of power amplifier Feb. 4, 2014
8633767 Amplifier circuit with noise suppression and related noise suppression method thereof Jan. 21, 2014
8633768 Amplifying device Jan. 21, 2014
8629724 Power amplifier Jan. 14, 2014
8626084 Area efficient concurrent matching transceiver Jan. 7, 2014
8618879 Semiconductor device Dec. 31, 2013
8599966 Coupling system for data receivers Dec. 3, 2013
8598952 Voltage variable type digital audio amplifying device for noise compensation and method thereof Dec. 3, 2013
8588333 RF transmitter and method of operation Nov. 19, 2013
8587377 Apparatus and methods for biasing a power amplifier Nov. 19, 2013
8587376 Automatic gain control Nov. 19, 2013
8570105 Power control Oct. 29, 2013
8571495 Distortion compensation apparatus and method Oct. 29, 2013
8558614 Amplification device Oct. 15, 2013
8558613 Apparatus and method for digitally-controlled automatic gain amplification Oct. 15, 2013
8558616 Amplifying apparatus Oct. 15, 2013
8547173 Signal amplifying circuit and signal amplifying method Oct. 1, 2013
8536940 Method for amplifying a signal by a power amplifier, power amplifier system, device, computer program product, and digital storage medium thereof Sep. 17, 2013
8536941 Amplifying device and method involving envelope signal Sep. 17, 2013
8520767 Transmission circuit and communication apparatus using polar modulation method Aug. 27, 2013
8514018 Signal alignment for envelope tracking system Aug. 20, 2013
8508297 Envelope amplifier Aug. 13, 2013
8493142 Amplifier, transmission device, and amplifier control method Jul. 23, 2013
8494096 Automatically setting an operative state of a wideband amplifier Jul. 23, 2013
8494468 Mobile wireless communications device including sensing transistor and hysteretic comparator and related methods Jul. 23, 2013
8451054 Power amplifying devices May. 28, 2013
8446219 Class-G line driver control signal May. 21, 2013
8421534 Predistorter for compensating for nonlinear distortion and method thereof Apr. 16, 2013
8410849 Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments Apr. 2, 2013
8395449 Network for controlling the power supply to a system of active elements Mar. 12, 2013
8390381 Two stage Doherty amplifier Mar. 5, 2013
8362837 System and a method for amplifying a signal by multiple non-linear power amplifiers Jan. 29, 2013
8354883 Power amplifier Jan. 15, 2013
8344799 Power amplifier and amplification method thereof Jan. 1, 2013

1 2 3 4 5 6 7 8 9 10 11










 
 
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