Patents
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
06/2002
06/25/2002US6411515 Amplifier
06/25/2002US6411167 Amplifier output stage
06/25/2002US6411161 AC coupling circuit
06/25/2002US6411136 Differential line driver
06/25/2002US6410902 Optical receiver
06/20/2002WO2002049300A2 Amplitude and phase modulator
06/20/2002WO2002049211A2 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
06/20/2002WO2002049207A1 Pre-distortion of non-linear devices by post-detection
06/20/2002WO2002049206A2 Saturation prevention and amplifier distortion reduction
06/20/2002WO2002023634A3 Cmos transceiver having an integrated power amplifier
06/20/2002WO2002019545A3 System for closed loop power control using a linear or a non-linear power amplifier
06/20/2002US20020077066 System and method of RF power amplification
06/20/2002US20020076438 Spheronized beadlet containing acid labile group is selected from the group consisting of 2', 3'-dideoxyadenosine, 2', 3' dideoxycytidine, pravstatin, erythromycin, digoxin and pancreatin
06/20/2002US20020076067 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
06/20/2002US20020076063 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals
06/20/2002US20020075178 Radar transmitter circuitry and techniques
06/20/2002US20020075138 Portable object detection system
06/20/2002US20020075076 linearized class C amplifier with dynamic biasing
06/20/2002US20020075073 Single-ended, ultra low voltage class AB power amplifier architecture having a common-mode feedback quiescent current control circuit
06/20/2002US20020075072 Switching power amplifier
06/20/2002US20020075070 Amplifier
06/20/2002US20020074984 Temperature characteristic compensating circuit and semiconductor integrated circuit having the same
06/20/2002US20020074980 Saturation prevention and amplifier distortion reduction
06/20/2002DE10039438C2 Zweistufiger Operationsverstärker Two-stage operational amplifier
06/19/2002EP1214794A1 Method and apparatus for wireless phone transmit power amplification with reduced power consumption
06/19/2002EP1214780A1 Modulated radio signal transmitter with self-adapted amplification polarisation
06/18/2002US6407640 Two-stage LNA with good linearity
06/18/2002US6407636 Stability control multistage operational amplifier
06/18/2002US6407635 Carrier-blanking mechanism for sweeping detector used to measure and correct RF power amplifier distortion
06/18/2002US6407634 Linear envelope tracking RF power amplifier with adaptive analog signal processing
06/18/2002US6407633 Methods and apparatus for stabilizing feedback-controlled amplifiers
06/18/2002US6407631 Charge-type sensor amplifying circuit
06/18/2002US6407617 Bias circuit and method of fabricating semiconductor device
06/18/2002US6407578 Arrangement for reducing power dissipation in a line driver
06/13/2002WO2002047259A1 Method and arrangement relating to electronic compensation
06/13/2002WO2002047253A1 Method for stabilization of operating conditions in electronic devices
06/13/2002WO2002047252A2 Self-boosting circuit for a power amplifier
06/13/2002WO2002047249A2 A polar loop amplifier arrangement
06/13/2002WO2002015323A3 Highly integrated single substrate mmw multi-beam sensor
06/13/2002WO2001001511A9 Delay line filter
06/13/2002US20020072843 Safe distance algorithm for adaptive cruise control
06/13/2002US20020072340 Control of receiver immunity to interference by controlling linearity
06/13/2002US20020071264 Electric apparatus comprising a shield and transmission means with filtering of an electric signal on both sides of the shield
06/13/2002US20020070808 System and method for closed loop VSWR correction and tuning in RF power amplifiers
06/13/2002US20020070807 High-frequency amplifier circuit for UHF television tuner having less distortion
06/13/2002US20020070805 Circuit configuration with an integrated amplifier
06/13/2002US20020070803 Intermodulation product cancellation circuit
06/13/2002US20020070801 Differential line driver circuit
06/13/2002US20020070799 Class D digital amplifier
06/13/2002US20020070770 Differential line driver circuit
06/13/2002DE10134561A1 Hochfrequenz-Leistungsverstärker High frequency power amplifier
06/12/2002EP1213831A1 A fast-settling, low power, biasing apparatus and method for single-ended circuits
06/12/2002EP1213724A1 Process-insensitive, highly-linear constant transconductance circuit
06/12/2002EP1212831A1 Impedance adapting amplifier device for low frequency with electronic tubes insertible on line in the path of the low frequency signal
06/12/2002EP0988694A4 Dynamic predistortion compensation for a power amplifier
06/12/2002EP0972339B1 Power amplication system with intelligent control of amplifier modules
06/11/2002US6405057 Method and apparatus for base transceiver station cold starts
06/11/2002US6404823 Envelope feedforward technique with power control for efficient linear RF power amplification
06/11/2002US6404579 Current bias voltage sense single ended preamplifier
06/11/2002US6404287 Bias network for high efficiency RF linear power amplifier
06/11/2002US6404286 Electrical arrangement having improved feedback stability
06/11/2002US6404285 Transistor amplifier that accommodates large input signals
06/11/2002US6404284 Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance
06/11/2002US6404283 Method and apparatus for amplifying a radio frequency signal
06/11/2002US6404282 Preamplification circuit
06/11/2002US6404177 Bandgap voltage reference source
06/11/2002US6402689 Methods, systems, and associated implantable devices for dynamic monitoring of physiological and biological properties of tumors
06/06/2002WO2002045258A2 Method of linearising a signal
06/06/2002WO2002045254A1 High-frequency amplifier and high-frequency mixer
06/06/2002WO2002045253A1 High-frequency amplifier
06/06/2002WO2002025809A3 Switching power amplifier
06/06/2002WO2002001748A3 Improved multi-carrier receiver for a radio telecommunications network
06/06/2002WO2001091281A3 Level shifter for switching power amplifier
06/06/2002US20020067305 System and technique for mounting a radar system on a vehicle
06/06/2002US20020067287 Near object detection system
06/06/2002US20020067213 Cascode amplifying circuit and folded cascode amplifying circuit
06/06/2002US20020067212 Micro-wave power amplifier
06/06/2002US20020067211 Power amplifier
06/06/2002US20020067210 Amplifier circuit
06/06/2002US20020067209 Self-boosting circuit for a power amplifier
06/06/2002US20020067207 Operational amplifier
06/06/2002US20020067205 Circuit for linearizing electronic devices
06/06/2002US20020067203 Control circuit for increasing the output inpedance of a transconductor
06/06/2002DE10054540A1 Power efficient amplifier circuit and method for power efficient signal amplification employing parallel amplification by two amplifiers with negative feedback
06/05/2002EP1211800A2 Amplitude modulator using a bipolar transistor
06/05/2002EP1210764A1 Dynamic switching frequency control for a digital switching amplifier
06/05/2002EP1119102A9 Feedback circuit and amplifier and mixer comprising the same
06/05/2002EP1075732B1 A method in the compensation of unlinearities in an amplifier, an amplifier, and uses of the method and the amplifier
06/05/2002EP0870360A4 Differential amplifier with improved low-voltage linearity
06/05/2002CN1352826A System and method for selectively controlling amplifier performance
06/05/2002CN1352822A Predistortion type distortion compensatino amplifier
06/05/2002CN1086064C Temperature compensated wide dynanic range power detection circuitry for portable RF transmission terminals
06/04/2002US6400775 Method and a system for digitally linearizing an amplifier
06/04/2002US6400774 Nonlinearity-caused distortion compensating system
06/04/2002US6400541 Circuit for protection of differential inputs against electrostatic discharge
06/04/2002US6400233 Method and apparatus for compensating for distortion in IQ modulators
06/04/2002US6400229 Low noise, low distortion RF amplifier topology
06/04/2002US6400228 Switched supply for operational amplifier
06/04/2002US6400227 Stepped gain controlled RF driver amplifier in CMOS
06/04/2002US6400226 Distributed amplifier with improved flatness of frequency characteristic