Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
03/2003
03/13/2003WO2003021826A1 Method for measuring and compensating gain and phase imbalances in quadrature modulators
03/13/2003WO2003021804A1 New rfic transceiver architecture and method for its use
03/13/2003WO2003021775A1 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance
03/13/2003WO2003021770A1 Circuitry for creating a spectral null in a differential output switching amplifier and method therefor
03/13/2003WO2003021769A1 Switching amplification apparatus
03/13/2003WO2003021767A1 An adaptive linearization technique for communication building block
03/13/2003WO2003021766A2 Switching power supply for rf power amplifiers
03/13/2003WO2003020546A1 Rf-power amplifier
03/13/2003WO2002080356A3 Current sense automatic level control system with pre-bias
03/13/2003WO2002056458A3 A fully differential, variable-gain amplifier and a multidimensional amplifier arrangement
03/13/2003US20030048138 High frequency power amplifier circuit
03/13/2003US20030048135 High-frequency amplifier
03/13/2003US20030048133 Wireless communication frequency signal amplification apparatus and transmitting and receiving apparatus
03/13/2003US20030048132 High frequency power amplifier, high frequency power amplifier module, and portable telephone
03/12/2003EP1292021A2 Radio frequency amplifier and television tuner
03/12/2003EP1292020A1 Amplifier circuit
03/12/2003EP1292019A1 Multiple stage and/or nested predistortion system and method
03/12/2003EP1290919A2 Method and apparatus for programmable power curve and wave generator
03/12/2003CN2540065Y Photoelectric coupling automatic constant-current offset power amplifier
03/12/2003CN1402433A 半导体器件和电源电压控制方法 Semiconductor devices and the supply voltage control method
03/12/2003CN1402425A Differential amplifying circuit and semiconductor integrated circuit for driving liquid crystal display device
03/12/2003CN1402350A Semiconductor capable of preventing generating multiple reflection, and driving and setting method
03/12/2003CN1103136C Linear digital autoamtic gain control
03/11/2003US6532358 Overload distortion protection for a wideband receiver
03/11/2003US6531924 Bias method and circuit for distortion reduction
03/11/2003US6531922 DC-coupling approach for current mode circuits
03/11/2003US6531921 Operational amplifier
03/11/2003US6531920 Differential amplifier circuit
03/11/2003US6531918 Low cost, pilotless, feed forward compensation for a power amplifier
03/11/2003US6531917 Non-linear distortion compensating apparatus
03/11/2003US6531914 Internal voltage generation circuit
03/06/2003WO2003019934A1 Adaptive bandwidth control in a kinescope amplifier
03/06/2003WO2003019825A1 Method for improving quality of transmitted data using loopback during operation
03/06/2003WO2003019776A2 Rf amplifier and method therefor
03/06/2003WO2003019774A2 High frequency power amplifier circuit
03/06/2003WO2003019773A1 Calibration of an adaptive signal conditioning system
03/06/2003WO2003019772A1 Linearised radio transmitter
03/06/2003WO2003019771A1 Power amplifier having a cascode current-mirror self-bias boosting circuit
03/06/2003WO2003019770A2 N way cancellation coupler for power amplifier
03/06/2003WO2002098008A3 Non-linear transistor circuits with thermal stability
03/06/2003WO2002078173A3 System and method for rf signal amplification
03/06/2003US20030046038 EM algorithm for convolutive independent component analysis (CICA)
03/06/2003US20030045264 Adaptive linearization technique for communication building block
03/06/2003US20030045253 Amplifying device
03/06/2003US20030045252 Power amplifier
03/06/2003US20030045251 Power amplifier overload protection
03/06/2003US20030045247 Amplifying device
03/06/2003US20030043129 Semiconductor device capable of internally generating bias changing signal
03/06/2003US20030042982 Operational amplifier
03/06/2003US20030042979 System and method for adjusting group delay
03/06/2003US20030042978 Equalizer system and method for predistortion
03/06/2003US20030042977 Radio frequency amplifier and method of driving the same
03/06/2003US20030042976 Circuitry for creating a spectral null in a differential output swiitching amplifier and method therefor
03/06/2003US20030042882 Power supply circuit for clamping excessive input voltage at predetermined voltage
03/05/2003EP1289140A1 Integrated electronic circuit including non-linear devices
03/05/2003EP1289131A2 Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit
03/05/2003EP1289129A1 Amplifying device using predistortion
03/05/2003EP1289128A2 Feedforward amplifier, feedforward amplification method
03/05/2003EP1289127A2 Distortion compensation amplification apparatus of feed forward type and adaptive pre-distortion type
03/05/2003EP1289126A1 Feedforward amplifier
03/05/2003EP1287612A1 Device and method for pre-treating a signal to be transmitted using a non-linear amplifier with an upstream band-pass filter
03/05/2003EP1287611A2 Amplifier circuit
03/05/2003CN1400742A 微波功率放大器 Microwave Power Amplifier
03/04/2003US6529716 RF transmitter with extended efficient power control range
03/04/2003US6529715 Amplifier architecture for multi-carrier wide-band communications
03/04/2003US6529151 Measuring apparatus and method which delivers a signal indicative of a measured value to an external signal device via a signal line
03/04/2003US6529080 TOI and power compression bias network
03/04/2003US6529079 RF power amplifier with distributed bias circuit
03/04/2003US6529077 Gain compensation circuit for CMOS amplifiers
03/04/2003US6529075 Amplifier with suppression of harmonics
03/04/2003US6529073 Active control system and amplifiers including damping loops and power supplies with over-voltage protection pre-regulators
03/04/2003US6529072 Predistortion-based amplifier, transmitter and envelope detector
03/04/2003US6529071 xDSL feedback class C-AB driver
03/04/2003US6529070 Low-voltage, broadband operational amplifier
03/04/2003US6529065 Circuit configuration for controlling the operating point of a power amplifier
03/04/2003US6529063 Thermally stable cascode
03/04/2003US6528975 Saturation prevention and amplifier distortion reduction
02/2003
02/27/2003WO2003017553A2 Apparatus and method for controlling adaptive circuits
02/27/2003WO2003017478A2 Feed forward compensation circuit
02/27/2003WO2003017473A1 Rf power amplifier transistor quiescent current checking and adjusting
02/27/2003WO2003017472A1 Broadband amplifier system having improved linearity and minimum loss
02/27/2003WO2003017468A2 A system and method for minimizing dissipation in rf power amplifiers
02/27/2003WO2003017467A2 Adaptive biasing of rf power transistors
02/27/2003WO2003017466A2 An adaptive pre-distortion method and apparatus for digital rf transmitters
02/27/2003WO2002089371A8 Power division multiplexing with incoherent signals and fixed powder hierarchy
02/27/2003WO2002052720A3 Circuit for low noise, fully differential amplification
02/27/2003WO2002031971A3 Mobile radiotelephony device and method for operating a mobile radiotelephony device
02/27/2003US20030040343 Power amplifier control
02/27/2003US20030040278 System and method for protecting devices from interference signals
02/27/2003US20030038680 RF amplifier and method therefor
02/27/2003US20030038679 Circuit configuration for setting the operating point of a radiofrequency transistor and amplifier circuit
02/27/2003US20030038675 Feedback loop with adjustable bandwidth
02/27/2003US20030038666 Semiconductor and method of controlling power supply voltage
02/27/2003US20030038655 Differential amplifier and semiconductor integrated circuit for LCD drive
02/27/2003CA2495113A1 Apparatus and method for controlling adaptive circuits
02/26/2003EP1286462A2 Signal dependent current controlled amplifier and method of performing same
02/26/2003EP1286461A2 Tracking power supply for multi-channel audio amplifiers
02/26/2003EP1285492A1 High impedance bias device
02/26/2003CN1399824A Second order predistorter for return laser transmitter
02/26/2003CN1399813A Method and circuit for distortion compensation and output control
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