| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/19/2011 | US7928801 Systems and methods of amplification based on array processed intermodulation suppression |
| 04/19/2011 | US7928799 Power amplifying apparatus and mobile communication terminal |
| 04/14/2011 | WO2011043801A1 Switched active bias control and power-on sequencing circuit for an amplifier |
| 04/14/2011 | WO2011042952A1 Papr (peak-to-average power ratio) determining apparatus and communication apparatus |
| 04/14/2011 | WO2011042919A1 Pulse width modulation for a switching amplifier |
| 04/14/2011 | US20110086594 Providing A Temperature Dependent Bias For A Device |
| 04/14/2011 | US20110084767 Active bias control circuit for an amplifier and method of power up sequencing the same |
| 04/14/2011 | US20110084765 Three Dimensional Inductor and Transformer |
| 04/14/2011 | US20110084764 Amplifier and signal filter |
| 04/14/2011 | US20110084763 Db-linear process-independent variable gain amplifier |
| 04/14/2011 | US20110084762 Envelope Detector for High Speed Applications |
| 04/14/2011 | US20110084761 Output Amplifier of Source Driver |
| 04/13/2011 | EP2309644A1 Large time constant steering circuit and instrumentation amplifier implementing same |
| 04/13/2011 | EP2309642A2 Bias circuit |
| 04/13/2011 | EP2309638A1 Multi-level switching converter |
| 04/13/2011 | EP2308171A2 D-class digital amplifier configured for shaping non-idealities of an output signal |
| 04/13/2011 | EP2308170A1 Vswr compensation circuits for rf transmit chain |
| 04/13/2011 | EP2308046A2 Method and system for auditory enhancement and hearing conservation |
| 04/13/2011 | CN201797488U Novel digital input power amplifier |
| 04/13/2011 | CN201797487U Power amplifier based on analog predistortion technology and Doherty technology |
| 04/13/2011 | CN201797486U Power amplifier in multifunctional check gauge |
| 04/13/2011 | CN201797485U Control circuit of radio frequency matcher |
| 04/13/2011 | CN201797484U Feedforward power amplifier based on pilot frequency technology |
| 04/13/2011 | CN1856933B Signal processing circuit, chip and receiverb comprising the circuit |
| 04/13/2011 | CN102017553A Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
| 04/13/2011 | CN102017401A Method and control circuit for controlling pulse width modulation |
| 04/13/2011 | CN102017400A Efficient linear LINC power amplifier |
| 04/13/2011 | CN102017399A Amplifier design with biasing and power control aspects |
| 04/13/2011 | CN102013877A Transconductance amplifier for reducing compensation capacitance |
| 04/13/2011 | CN102013876A Combined power control system of radio-frequency power amplifier and method of combined power control system |
| 04/13/2011 | CN102013875A Digital power amplifier and control method thereof |
| 04/13/2011 | CN101572483B Switching power supply device and semiconductor integrated circuit |
| 04/13/2011 | CN101527549B Amplifier circuit with function of voltage interpolation |
| 04/13/2011 | CN101442292B Radio-frequency amplifier digital bias circuit, method and communication equipment |
| 04/13/2011 | CN101133551B Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals |
| 04/12/2011 | USRE42291 System and method for processing digital visual interface communication data signals and display data channel communication signals over a transmission line |
| 04/12/2011 | US7924098 High frequency amplifier circuit and mobile communication terminal using the same |
| 04/12/2011 | US7924097 Solid-state ultra-wideband microwave power amplifier employing modular non-uniform distributed amplifier elements |
| 04/12/2011 | US7924096 Input buffer with impedance cancellation |
| 04/12/2011 | US7924095 Operational amplifiers having low-power unconditionally-stable common-mode feedback |
| 04/12/2011 | US7924094 Amplifier and offset regulating circuit |
| 04/12/2011 | US7924093 Amplifier arrangement and method for signal amplification |
| 04/12/2011 | US7924092 Inter-stage matching network to enhance common mode stability |
| 04/12/2011 | US7924091 Class-D transconductance amplifier |
| 04/12/2011 | US7924090 Amplifying device |
| 04/12/2011 | US7924089 Offset voltage correction circuit and class D amplifier |
| 04/12/2011 | US7923710 Digital isolator with communication across an isolation barrier |
| 04/12/2011 | CA2414364C Transmitter including a composite amplifier |
| 04/07/2011 | WO2011040721A2 Two-wheel type throwing robot |
| 04/07/2011 | WO2011039871A1 Bias generating circuit, power amplifier module, and semiconductor device |
| 04/07/2011 | WO2011039796A1 Power amplifier |
| 04/07/2011 | WO2011039792A1 Semiconductor device |
| 04/07/2011 | WO2011012473A4 Dual use transistor |
| 04/07/2011 | WO2011008562A3 Integrated power amplifier with load inductor located under ic die |
| 04/07/2011 | US20110081879 Amplifier circuit and communication device |
| 04/07/2011 | US20110081873 Filter, transmitter-receiver, and amplifying circuit |
| 04/07/2011 | US20110080217 Audio amplifier |
| 04/07/2011 | US20110080215 Final stage three-way power combining amplifying circuit applied to power amplifier of mobile communications base station system |
| 04/07/2011 | US20110080214 Output amplifier circuit and data driver of display device using the circuit |
| 04/07/2011 | US20110079708 Silicon photodetection module |
| 04/07/2011 | DE112009001227T5 Prädiktive Rückkopplungskompensation für PWM-Schaltverstärker Predictive feedback compensation for PWM switching amplifier |
| 04/07/2011 | DE102006015983B4 Verstärkerschaltung und integrierte Schaltungsanordnung Amplifier circuit and integrated circuit |
| 04/06/2011 | EP2306640A1 Method and apparatus for power supplies with voltage tracking |
| 04/06/2011 | EP2306639A2 Amplifier circuit and communication device |
| 04/06/2011 | EP2306637A1 Power supply method, apparatus, and system for a radio frequency power amplifier |
| 04/06/2011 | EP2304872A2 Circuit for amplifying a signal representing a variation in resistance of a variable resistance and corresponding capacitor |
| 04/06/2011 | EP2304871A2 Switching power amplifier and method of controlling the same |
| 04/06/2011 | CN201789472U Combined speaker |
| 04/06/2011 | CN201789471U Radio-frequency power amplifier |
| 04/06/2011 | CN1960166B High-bandwidth high-gain amplifier |
| 04/06/2011 | CN1620190B Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system |
| 04/06/2011 | CN102007687A Amplitude control circuit, polar modulation transmission circuit and polar modulation method |
| 04/06/2011 | CN102006022A Low voltage operational amplifier based on CMOS (complementary metal oxide semiconductor) process |
| 04/06/2011 | CN102006021A Frequency-conversion D class amplifier and control method, sawtooth wave generator used for frequency-conversion D class amplifier and method |
| 04/06/2011 | CN102006020A Signal amplifying circuit |
| 04/06/2011 | CN102006019A Amplifier circuit |
| 04/06/2011 | CN102006018A Opening control circuit used for AB class audio amplifier |
| 04/06/2011 | CN102006017A Biasing circuit and power amplifier circuit thereof |
| 04/06/2011 | CN102006016A GSM power amplification module and mobile terminal |
| 04/06/2011 | CN102006015A SiGe bipolar complementary metal oxide semiconductor (BiCMOS) radio-frequency power amplifier |
| 04/06/2011 | CN102006014A Weak current amplification circuit with high dynamic range for space photoelectric measurement instrument |
| 04/06/2011 | CN102006012A Nonlinear compensation amplifier for magnetic powder brake-clutches |
| 04/06/2011 | CN101420203B Low-noise amplifier circuit |
| 04/06/2011 | CN101330481B Predistortion model apparatus as well as apparatus, system and method for processing predistortion of signal |
| 04/06/2011 | CN101299548B Power control apparatus, speaker apparatus and power control method |
| 04/06/2011 | CN101267188B Digital input class-d amplifier |
| 04/05/2011 | US7920029 Power amplifier |
| 04/05/2011 | US7920028 Bias circuit and control method for bias circuit |
| 04/05/2011 | US7920027 Amplifier design with biasing and power control aspects |
| 04/05/2011 | US7920026 Amplifier output stage with extended operating range and reduced quiescent current |
| 04/05/2011 | US7920025 Operational amplifier and method of driving liquid crystal display |
| 04/05/2011 | US7920024 Apparatus and methods providing dynamic biasing of cascode transistors in class AB amplifiers |
| 04/05/2011 | US7920023 Switching amplifier |
| 04/05/2011 | US7919992 Charge recycling amplifier for a high dynamic range CMOS imager |
| 04/05/2011 | US7919985 Current-controlled CMOS circuits with inductive broadbanding |
| 03/31/2011 | WO2011037274A1 Doherty amplifier |
| 03/31/2011 | WO2011036331A1 Adjustable circuit architecture |
| 03/31/2011 | US20110075723 Thermal Feedback for Switch Mode Amplification |
| 03/31/2011 | US20110074512 CIRCUIT AND METHOD FOR BIASING A GALLIUM ARSENIDE (GaAs) POWER AMPLIFIER |
| 03/31/2011 | US20110074511 Layout and pad floor plan of power transistor for good performance of spu and stog |