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Class Information
Number: 330/306
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including frequency-responsive means in the signal transmission path > And bandpass, broadband (e.g., wideband) or sidepass means
Description: Subject matter including means which determines the range of the frequencies of the applied signal that will be amplified.










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

Patent Number Title Of Patent Date Issued
8665028 Amplifier with integrated filter Mar. 4, 2014
8659359 RF power transistor circuit Feb. 25, 2014
8606193 RF transceiver IC having internal loopback conductor for IP2 self test Dec. 10, 2013
8547171 System and method for controlling radio frequency transmissions from an electronic device Oct. 1, 2013
8493153 Narrowband amplifier with improved interference suppression Jul. 23, 2013
8362834 System and method for controlling radio frequency transmissions from an electronic device Jan. 29, 2013
8362833 Amplifier circuitry, integrated circuit and communication unit Jan. 29, 2013
8319562 System and method for amplifying a signal using multiple amplification stages sharing a common bias current Nov. 27, 2012
8269554 System and method for controlling radio frequency transmissions from an electronic device Sep. 18, 2012
8237509 Amplifier with integrated filter Aug. 7, 2012
8203387 Circuit providing compensated power for sense amplifier and driving method thereof Jun. 19, 2012
8154348 Amplifier circuit Apr. 10, 2012
8107901 Feedback loop with adjustable bandwidth Jan. 31, 2012
8040185 Amplifying device Oct. 18, 2011
8018288 High-linearity low noise amplifier Sep. 13, 2011
8008971 System and method for controlling radio frequency transmissions from an electronic device Aug. 30, 2011
7973561 Receiver particularly for a meter-bus Jul. 5, 2011
7924098 High frequency amplifier circuit and mobile communication terminal using the same Apr. 12, 2011
7898333 Operational amplifier Mar. 1, 2011
7880541 Low noise, low power instrumentation amplifier Feb. 1, 2011
7872534 Image signal amplifying circuit and amplifying semiconductor integrated circuit Jan. 18, 2011
7855605 Amplifier circuit Dec. 21, 2010
7839219 Low-noise amplifier circuit including band-stop filter Nov. 23, 2010
7800439 High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom Sep. 21, 2010
7728696 Harmonic termination of power amplifiers using BAW filter output matching circuits Jun. 1, 2010
7724084 System and method for controlling radio frequency transmissions from an electronic device May. 25, 2010
7692495 Tunable RF bandpass transconductance amplifier Apr. 6, 2010
7688138 Electronic device having a predistortion filter and related methods Mar. 30, 2010
7646251 Radio frequency application circuit Jan. 12, 2010
7626459 High frequency amplifier circuit and mobile communication terminal using the same Dec. 1, 2009
7622989 Multi-band, inductor re-use low noise amplifier Nov. 24, 2009
7567128 Power amplifier suppressing radiation of second harmonic over wide frequency band Jul. 28, 2009
7554410 Power amplifier Jun. 30, 2009
7508263 Digital amplifying apparatus with noise reduction Mar. 24, 2009
7474150 Amplifier composite triple beat (CTB) reduction by phase filtering Jan. 6, 2009
7425872 Radio frequency power amplifier Sep. 16, 2008
7423490 Wideband high frequency chokes Sep. 9, 2008
7411458 Method and apparatus for controlling an output voltage in a power amplifier Aug. 12, 2008
7391256 System and method for DC correction in wireless receivers Jun. 24, 2008
7391268 Power amplifying device comprising a stabilizing circuit Jun. 24, 2008
7355481 Amplification circuit and control method of amplification circuit Apr. 8, 2008
7352237 Radio frequency power amplifier and corresponding method Apr. 1, 2008
7260375 Frequency agile RF circuit Aug. 21, 2007
7245186 Bandpass amplifier Jul. 17, 2007
7202734 Electronically tuned power amplifier Apr. 10, 2007
7193477 Concurrent triple-band gain amplifier for multi-standard coexist communications Mar. 20, 2007
7161434 Amplifier Jan. 9, 2007
7138872 Power amplifier device Nov. 21, 2006
7126308 Interface circuit with power converter with interface circuit and electric vehicle with power converter Oct. 24, 2006
7102447 XO-buffer robust to interference Sep. 5, 2006

1 2 3 4 5 6 7 8










 
 
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