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)
11/2001
11/15/2001	US20010040746 Circuit device for restoring the symmetry of an analog signal originated by the reading of data from magnetic supports
11/15/2001	US20010040485 Switch assembly with a multi-pole switch for combining amplified RF signals to a single RF signal
11/15/2001	US20010040259 Semiconductor device and method of manufacturing the same
11/15/2001	US20010040212 Photodetector apparatus
11/15/2001	DE10021928A1 Current mirror has voltage-controlled current sources providing auxiliary current and additional auxiliary current summed to produce error current drawn from differential output signal
11/14/2001	EP1154572A2 Semiconductor integrated circuits
11/14/2001	EP1154567A2 Radio frequency amplifier and tuner
11/14/2001	EP1154566A2 Bias circuit and radio communication apparatus using same
11/14/2001	EP1154565A2 Amplifying circuit for offset compensation, in particular for digital modulation apparatuses
11/14/2001	EP1154563A2 Frequency multiplier without spurious oscillation
11/14/2001	EP1153477A1 Linear and multi-sinh transconductance circuits
11/14/2001	EP1153476A1 A circuit for compensating noise and errors from an output stage of a digital amplifier
11/14/2001	EP0836766B1 Degenerated differential pair with controllable transconductance
11/14/2001	CN1074869C Computing amplifier and digital signal transmission circuit
11/13/2001	US6317468 IF exciter for radio transmitter
11/13/2001	US6317068 Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface
11/13/2001	US6317064 DC offset correction adaptable to multiple requirements
11/13/2001	US6317003 Radio-frequency amplifier, and radio communication system using it
11/13/2001	US6317002 Circuit for efficiently producing low-power radio frequency signals
11/13/2001	US6317001 Compensation of timing errors caused by dynamic thermal mismatch
11/13/2001	US6317000 Overload recovery circuit and method
11/13/2001	US6316999 Operational amplifier
11/13/2001	US6316998 Differential amplifier and a method of compensation
11/13/2001	US6316996 Adjustable AC load structure
11/13/2001	US6316995 Input stage for constant gm amplifier circuit and method
11/13/2001	US6316993 Analog circuitry for start-up glitch suppression
11/13/2001	US6316992 DC offset calibration for a digital switching amplifier
11/13/2001	US6316989 Cascade current miller circuit
11/13/2001	US6316983 Predistortion circuit
11/13/2001	US6316971 Comparing and amplifying detector circuit
11/13/2001	US6316970 Floating, balanced output circuit
11/13/2001	US6316882 Electronic ballast having a stable reference voltage and a multifunction input for soft dimming and ON/OFF control
11/08/2001	WO2001084715A1 Differential phase-locked-loop circuit
11/08/2001	WO2001084706A1 Ft multiplier amplifier with low-power biasing circuit
11/08/2001	WO2001084705A1 System and method for optimal biasing of a telescopic cascode operational transconductance amplifier (ota)
11/08/2001	WO2001084704A2 Rf power amplifier having high power-added efficiency
11/08/2001	US20010038312 Linear and multi-sinh transconductance circuits
11/08/2001	US20010038311 Differential amplifier circuit and pull up-type differential driver
11/08/2001	US20010038310 Power transistor module, power amplifier and methods in the fabrication thereof
11/08/2001	US20010038301 Current mirror circuit
11/07/2001	EP1152525A2 Distortion-compensating apparatus
11/07/2001	EP1152524A1 Low distortion signal amplifier system and method
11/07/2001	EP1152523A1 Feedforward multi-terminal power-synthesizing power amplifier
11/07/2001	EP1152429A2 Data storage device
11/07/2001	EP1151533A1 Microwave amplifiers
11/07/2001	EP0835551A4 Output stage for buffering signals
11/07/2001	CN1074612C Circuit arrangement comprising differential amplifier
11/07/2001	CN1074611C Audio frequency differential bus receiver used for audio/video frequency inter-connection
11/07/2001	CN1074610C Push-pull current amplifier by parallel voltage-stabilized thermal tracking bias circuit
11/07/2001	CN1074609C Method and device for improving efficiency of amplifier
11/07/2001	CN1074587C Circuit arrangement for processing first or second high-frequency signal
11/06/2001	US6313819 Liquid crystal display device
11/06/2001	US6313706 Semiconductor circuit with a stabilized gain slope
11/06/2001	US6313704 Multi-stage signal amplifying circuit
11/06/2001	US6313700 Power amplifier and communication unit
11/06/2001	US6313699 Power amplifier and communication unit
11/06/2001	US6313698 Method and apparatus for wireless phone transmit power amplification with reduced power consumption
11/06/2001	US6313697 Device for amplifying signals
11/06/2001	US6313696 Differential buffer having common-mode rejection
11/06/2001	US6313692 Ultra low voltage cascode current mirror
11/06/2001	US6313667 Apparatus and method for a turn around stage having reduced power consumption, Class AB behavior, low noise and low offset
11/06/2001	US6313459 Method for calibrating and operating an uncooled avalanche photodiode optical receiver
11/06/2001	US6313458 Gain-adjustable photoreceiver circuit with photoelectric converter and amplifier
11/05/2001	CA2307684A1 High speed variable output power driver
11/01/2001	WO2001082472A1 Loss reduction using multiple amplifiers identically divided
11/01/2001	WO2001069779B1 System and method of producing direct audio from a power supply
11/01/2001	US20010036842 Transceiver operation in radio system
11/01/2001	US20010036816 Low power and high linearity receivers with reactively biased front ends
11/01/2001	US20010035805 Radio frequency amplifier with small distortion and superior isolation
11/01/2001	US20010035793 Amplifier
11/01/2001	US20010035792 Two stage low noise amplifier
11/01/2001	US20010035791 System and method for producing an amplified signal
11/01/2001	US20010035790 Integrated power amplifier which allows parallel connections
11/01/2001	US20010035789 Differential amplifier, semiconductor device, power supply circuit and electronic equipment using the same
11/01/2001	US20010035788 Digitally operated analog buffer amplifiers
10/2001
10/31/2001	EP1150424A2 Differential amplifier, semiconductor device, power supply circuit and electronic equipment using the same
10/31/2001	EP1150423A2 Differential amplifier, semiconductor device, power supply circuit and electronic equipment using the same
10/31/2001	EP1150422A2 Adaptive compensation for carrier signal phase distortion
10/31/2001	EP1150125A1 Charge-type sensor amplifying circuit
10/31/2001	EP1149467A1 Amplifier
10/31/2001	EP1149466A1 Amplifier
10/31/2001	EP0962049B1 A reconstruction filter for eliminating the switching residue in a switched system or similar
10/31/2001	EP0829132B1 RAIL-TO-RAIL INPUT STAGES WITH CONSTANT gm AND CONSTANT COMMON-MODE OUTPUT CURRENTS
10/31/2001	CN1320328A Apparatus for proviidng television receiver alignment functions
10/31/2001	CN1320323A Video amplifier with integrated dc level shifting
10/31/2001	CN1074212C Pre-amplifier
10/30/2001	US6311046 Linear amplification systems and methods using more than two constant length vectors
10/30/2001	US6310517 Microwave amplifier
10/30/2001	US6310516 Attenuation compensation in amplification for a distribution network
10/30/2001	US6310515 CMOS track and hold amplifier
10/30/2001	US6310514 Amplifier that indicates its degree of calibration
10/30/2001	CA2210547C A microwave vco having reduced supply voltage
10/25/2001	WO2001080436A2 Dual-mode communications transmitter
10/25/2001	WO2001080423A2 Method and apparatus for dynamic sound optimization
10/25/2001	WO2001080422A2 Boosted high gain, very wide common mode range, self-biased operational amplifier
10/25/2001	WO2001080421A2 An accurate power detection circuit for use in a power amplifier
10/25/2001	WO2001080420A2 Amplifier circuit
10/25/2001	WO2000046916A9 A closed loop calibration for an amplitude reconstruction amplifier
10/25/2001	US20010034217 System and method for selectively interconnecting amplifiers in a communications device
10/25/2001	US20010033190 Analog voltage isolation circuit

1 ... 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 ... 441