Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/2005
10/18/2005US6956439 Transimpedance amplifier with controllable noise reduction
10/18/2005US6956438 Radio frequency power amplifier module
10/18/2005US6956437 Metal-oxide-semiconductor device having integrated bias circuit
10/18/2005US6956436 Wide common mode differential input amplifier and method
10/18/2005US6956435 Variable gain differential amplifier and multiplication circuit
10/18/2005US6956434 MOSFET well biasing scheme that mitigates body effect
10/18/2005US6956431 Pulse width modulation amplifier
10/18/2005US6956380 Narrow-band amplifier and impedance-measuring apparatus
10/18/2005US6956195 Photoelectric current and voltage converting circuit
10/13/2005WO2005096005A1 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit
10/13/2005US20050227646 Detecting and maintaining linearity in a power amplifier system through comparing peak and RMS power levels
10/13/2005US20050227627 Programmable radio transceiver
10/13/2005US20050227617 Satellite amplifier system
10/13/2005US20050226443 Method for RIAA correction of audio signal with use of transformer and capacitor
10/13/2005US20050226346 Distortion compensating apparatus
10/13/2005US20050225573 Display apparatus and driving device for displaying
10/13/2005US20050225397 Input matching circuit for multiband low noise amplifier
10/13/2005US20050225396 Bias circuit for power amplifier operated as a digital to analog converter
10/13/2005US20050225395 Compensation units for reducing the effects of self-heating and increasing linear performance in bipolar transistors
10/13/2005US20050225394 Automatic current reduction biasing technique for RF amplifier
10/13/2005US20050225392 Class AB output stage circuit with stable quiescent current
10/13/2005US20050225391 Output stage circut for an operational amplifier
10/13/2005US20050225389 Differential amplifier circuit
10/13/2005US20050225385 Auxiliary amplifier network
10/13/2005US20050225384 Class d amplifier
10/13/2005US20050225381 Current source circuit and amplifier using the same
10/13/2005US20050224697 Light-receiving circuit capable of expanding a dynamic range of an optical input
10/13/2005DE102005011392A1 Konstantstromschaltung Constant current circuit
10/13/2005DE102004013217A1 Programmable difference amplifier has first load, first transistor with first controllable extent and first gate connection
10/13/2005CA2560281A1 Model based distortion reduction for power amplifiers
10/12/2005EP1585215A1 Bias circuit for power amplifier operated as a digital to analog converter
10/12/2005CN1682444A Integrated circuit with automatic polarity detection and configuration
10/12/2005CN1682438A Push-pull amplifier and frequency conversion circuit
10/12/2005CN1682437A Transconductance amplifiers
10/12/2005CN1681203A Low distortion and radiation D-type amplifier
10/12/2005CN1681201A Resistance-capacitance balanced feedback negative circuit
10/12/2005CN1681199A Method and device for amplifying a reception signal
10/12/2005CN1681198A Dynamic bias for RF power amplifiers
10/12/2005CN1681078A Semiconductor device, and method and apparatus for manufacturing semiconductor device
10/12/2005CN1680964A Improved method and circuit arrangement for signal processing
10/12/2005CN1223118C Optical transmitter with temperature-compensation function and optical transmission system
10/11/2005US6954407 Current to voltage converter amplifier for use in a data reading device
10/11/2005US6954108 Fast-response current limiting
10/11/2005US6954107 Differential current amplifier with common mode rejection and high frequency boost
10/11/2005US6954106 FET band amplifier
10/11/2005US6954105 Disk drive and error amplifier therefor and related methods
10/11/2005US6954104 Method and system for monitoring a deliverable radio frequency power of an amplifier operable on a monolithic microwave integrated circuit
10/06/2005WO2005093948A1 Amplifier
10/06/2005WO2005093947A1 Bipolar differential input stage with input bias current cancellation circuit
10/06/2005WO2005093946A1 Preamplifier
10/06/2005WO2005093702A1 Organic el driver circuit and organic el display device
10/06/2005WO2005060489A8 Linearized trans-impedance amplifier
10/06/2005WO2005046049A3 Mmic distributed amplifier gate control using active bias
10/06/2005US20050221855 Radio frequency device and mobile communication terminal using the same
10/06/2005US20050221778 Automatic gain control device, automatic gain control method, control program for automatic gain control device, radio communication terminal having automatic control device, radio communication system, and radio communication method
10/06/2005US20050220195 Filter circuit and radio apparatus
10/06/2005US20050219925 Differential amplifier and bit-line sense amplifier adopting the same
10/06/2005US20050219111 Amplifier circuit and analog-to-digital circuit using the same
10/06/2005US20050219031 Method for RIAA correction of audio signal with use of transformer
10/06/2005US20050218995 Circuit for increasing the unity gain crossover frequency of an amplifier element
10/06/2005US20050218994 Low-voltage, low-power transimpedance amplifier architecture
10/06/2005US20050218993 Fast-response current limiting
10/06/2005US20050218990 Power amplifier
10/06/2005US20050218989 High-frequency power amplifier circuit and electronic part for communication
10/06/2005US20050218988 Power amplifier end stage
10/06/2005US20050218987 Power amplifier
10/06/2005US20050218986 Differential amplifiers and methods of using same
10/06/2005US20050218985 Fully differential amplifier with start up circuit
10/06/2005US20050218984 One-level zero-current-state exclusive or (XOR) gate
10/06/2005US20050218983 Differential amplifier
10/06/2005US20050218982 Class-AB amplifier for dual voltage supplies
10/06/2005US20050218981 Differential amplifier with two outputs and a single input of improved linearity
10/06/2005US20050218980 Differential stage voltage offset trim circuitry
10/06/2005US20050218977 Class E power amplifier circuit and associated transmitter circuits
10/06/2005US20050218976 Differential voltage amplifier circuit
10/06/2005US20050218975 Driving apparatus in a liquid crystal display
10/06/2005US20050218970 Driver circuit
10/06/2005US20050218944 Power amplification circuit and operational amplifier incorporating said circuit
10/06/2005US20050218938 Comparator circuit
10/06/2005US20050218910 Current-to-voltage converting apparatus and impedance measuring apparatus
10/06/2005US20050217293 Circuit for controlling a cooling device
10/05/2005EP1583232A2 Automatic gain control device and method
10/05/2005EP1583231A1 Low voltage transconductance amplifier/filters
10/05/2005EP1583230A1 Circuit for controlling a cooling device
10/05/2005EP1583229A1 Circuit for controlling a cooling device
10/05/2005EP1582039A1 Isolation interface with capacitive barrier and method for transmitting a signal by means of such isolation interface
10/05/2005EP1581995A1 Controllable rf broadband amplifier with a constant input impedance
10/05/2005EP1581994A2 Power amplifier circuit and method using bandlimited signal component estimates
10/05/2005EP1581993A2 Common gate with resistive feed-through low noise amplifier
10/05/2005CN1677889A 功率放大方法 Power amplification method
10/05/2005CN1677861A Driver circuit
10/05/2005CN1677850A Automatic gain control device, automatic gain control method, radio communication terminal, system and method
10/05/2005CN1677848A Radio frequency circuit device and mobile communication terminal using the same
10/05/2005CN1677847A Circuit for increasing the unity gain crossover frequency of an amplifier element
10/05/2005CN1677846A Differential amplifier, digital-to-analog converter and display apparatus
10/05/2005CN1677845A Amplifier circuit and display device
10/05/2005CN1677472A Driving apparatus in a liquid crystal display
10/05/2005CN1677020A Circuit for controlling a cooling device
10/04/2005US6952566 Transmission circuit and unnecessary radiant wave suppression method
10/04/2005US6952240 Image sampling circuit with a blank reference combined with the video input
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