| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 09/19/2002 | US20020130727 Circuit and method for compensating for non-linear distortion |
| 09/19/2002 | US20020130716 Linearization circuit and technique for a power combining network, or diplexer; especially as may use high temperature superconducting filters |
| 09/19/2002 | US20020130696 Offset compensation circuit and offset compensation method |
| 09/19/2002 | US20020130684 CMOS output amplifier independent of temperature, supply voltage and manufacturing quality of transistors |
| 09/19/2002 | DE10201890A1 Schaltung und Verfahren zur Kompensation eines Hochfrequenzsignalverlustes auf einer Übertragungsleitung Circuit and method for compensating a high-frequency signal loss on a transmission line |
| 09/19/2002 | DE10109864A1 Sicherheitsschaltvorrichtung Safety switching device |
| 09/18/2002 | EP1241781A1 Method and device for digitally predistorting and feedforward-linearisation of a transmission signal |
| 09/18/2002 | EP1241780A2 Audio power amplifying apparatus and method |
| 09/18/2002 | CN1369962A Operating amplifier with current feedback |
| 09/17/2002 | US6453048 Impedance converter for a condenser microphone |
| 09/17/2002 | US6452457 Electronic apparatus comprising a power amplifier |
| 09/17/2002 | US6452456 Fast-setting, low power, jammer insensitive, biasing apparatus and method for single-ended circuits |
| 09/17/2002 | US6452454 Temperature compensation module |
| 09/17/2002 | US6452453 Constant-current generator, differential amplifier, and semiconductor integrated circuit |
| 09/17/2002 | US6452452 Negative feedback gain control for common electrode transistor |
| 09/17/2002 | US6452447 Adaptive distortion-compensation apparatus |
| 09/17/2002 | US6452446 Closed loop active cancellation technique (ACT)-based RF power amplifier linearization architecture |
| 09/17/2002 | CA2261145C Power amplifier |
| 09/12/2002 | WO2002071600A2 Safety switch device |
| 09/12/2002 | WO2002071599A1 Scanning receiver for use in power amplifier linearization |
| 09/12/2002 | WO2002071598A1 Electro-optic gating arrangement with improved duty cycle |
| 09/12/2002 | WO2002071597A2 Circuit arrangement for providing an exponential pre-distortion for an adjustable amplifier |
| 09/12/2002 | WO2002071596A2 High-frequency amplifier circuit having a directly-connected bias circuit |
| 09/12/2002 | WO2001017105A9 Current source bias circuit with hot carrier injection tracking |
| 09/12/2002 | US20020127986 Digital baseband receiver in a multi-carrier power amplifier |
| 09/12/2002 | US20020127979 Set-up method for a linearising circuit |
| 09/12/2002 | US20020127787 Single supply hfet with temperature compensation |
| 09/12/2002 | US20020126861 Audio expander |
| 09/12/2002 | US20020126767 High linearity circuits and methods regarding same |
| 09/12/2002 | US20020126360 Optical transmitter having temperature compensating function and optical transmission system |
| 09/12/2002 | US20020125955 Gain and bandwidth enhancement for RF power amplifier package |
| 09/12/2002 | US20020125954 High-frequency amplifier circuit having a directly-connected bias circuit |
| 09/12/2002 | US20020125953 Method for configuring low-noise integrated amplifier circuits |
| 09/12/2002 | US20020125951 System and method for current splitting for variable gain contol |
| 09/12/2002 | US20020125948 Amplifier circuitry |
| 09/12/2002 | US20020125947 Linearizer for a power amplifier |
| 09/12/2002 | US20020125946 Miniaturized buffer amplifier and electronic circuit unit using same |
| 09/12/2002 | US20020125945 Method and apparatus for protecting radio frequency power amplifiers |
| 09/12/2002 | US20020125943 Amplification circuit for electric charge type sensor |
| 09/12/2002 | US20020125941 High efficiency switching amplifiers |
| 09/12/2002 | US20020125922 Semiconductor integrated circuit device |
| 09/11/2002 | EP1239597A1 A method for a transmitter to compensate for varying loading without an isolator |
| 09/11/2002 | EP1238456A2 Improved floating, balanced output circuit |
| 09/11/2002 | EP1238455A1 Method and apparatus for generating a radio frequency signal |
| 09/11/2002 | EP1166434B1 Non-linear distortion generator for both second and third order distortion |
| 09/11/2002 | CN1369136A 放大器 Amplifier |
| 09/11/2002 | CN1368792A 电流放大器结构 Current amplifier structure |
| 09/11/2002 | CN1368791A Turn-off noise suppressing circuit and method for audio amplifier |
| 09/11/2002 | CN1090839C Amplifier circuit and multistage amplifier circuit |
| 09/11/2002 | CN1090838C Inverted amplifying circit |
| 09/11/2002 | CN1090775C Circuit for generation internal supply voltage |
| 09/10/2002 | US6449465 Method and apparatus for linear amplification of a radio frequency signal |
| 09/10/2002 | US6448860 Device for converting small currents impressed at the input of the device by a non-ideal electric source of current into voltage signals |
| 09/10/2002 | US6448859 High frequency power amplifier having a bipolar transistor |
| 09/10/2002 | US6448858 Mask layout for sidefed RF power amplifier |
| 09/10/2002 | US6448857 Audio amplifier controller having soft start circuit protection and associated methods |
| 09/10/2002 | US6448854 Linear transconductance amplifier |
| 09/10/2002 | US6448853 Distortion improvement in amplifiers |
| 09/10/2002 | US6448851 Amplifier with offset compensation for a high voltage output transistor stage |
| 09/10/2002 | US6448844 CMOS constant current reference circuit |
| 09/10/2002 | US6448839 Circuit for compensating for the difference between the Vgs voltages of two MOS transistors |
| 09/10/2002 | US6448836 Operational amplifier and its offset cancel circuit |
| 09/10/2002 | US6448616 Adaptive biasing of RF power transistors |
| 09/06/2002 | WO2002069489A2 An automatic gain control circuit with high linearity and monotonically correlated offset voltage |
| 09/06/2002 | WO2002069485A2 Gain compensation circuit using a variable offset voltage |
| 09/06/2002 | WO2002069403A1 Arrangement and method for impedance matching |
| 09/06/2002 | WO2001010013A9 High-efficiency modulating rf amplifier |
| 09/05/2002 | US20020121936 Fast-settling, low power, jammer insenstive, biasing apparatus and method for single-ended circuits |
| 09/05/2002 | US20020121935 High power amplifier system having low power consumption and high dynamic range |
| 09/05/2002 | US20020121933 Class AB, high speed, input stage with base current compensation for fast settling time |
| 09/05/2002 | US20020121929 Power-efficient amplifier circuit and process for power-efficient amplification of a signal |
| 09/05/2002 | US20020121928 Self compensating amplifier and driver for broadcast data receiver |
| 09/04/2002 | EP1237189A1 Arrangement and method for impedance matching |
| 09/04/2002 | EP1236294A2 Second order predistortor for a return laser transmitter |
| 09/04/2002 | EP1236274A1 Amplifier ctb reduction by phase filtering |
| 09/04/2002 | EP1236272A1 Linearisation of an amplifier |
| 09/04/2002 | EP1236229A1 Circuit for protection of differential amplifier inputs against electrostatic discharge |
| 09/04/2002 | EP1186071A4 Delay line filter |
| 09/04/2002 | CN1367952A Dual-band. dual-mode power amplifier |
| 09/04/2002 | CN1367629A Electric efficiency raising circuit of radio-frequency power amplifier in double-mode mobile telephone |
| 09/04/2002 | CN1367580A Linear power amplification device with improved structure |
| 09/03/2002 | US6446263 Anti-loading CATV interface circuit and method |
| 09/03/2002 | US6445748 Non linear amplitude precorrection for HDTV transmitter |
| 09/03/2002 | US6445249 Modification of phase component of error signal to reduce variation of phase component of output signal of power amplifier |
| 09/03/2002 | US6445247 Self-controlled high efficiency power amplifier |
| 08/29/2002 | WO2002067445A1 Cartesian loop systems with digital processing |
| 08/29/2002 | WO2002067441A2 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 08/29/2002 | WO2002067416A1 Switching power amplifier, and switching control method of the switching power amplifier |
| 08/29/2002 | US20020119762 Semiconductor integrated circuit and radio communication apparatus using same |
| 08/29/2002 | US20020118853 Loudspeaker enclosure with adjustable baffle board |
| 08/29/2002 | US20020118067 Analog amplifier circuit |
| 08/29/2002 | US20020118066 Variable phase-shifting rf power amplifiers |
| 08/29/2002 | US20020118042 Circuit and method for compensation if high-frequency signal loss on a transmission line |
| 08/29/2002 | DE10106388A1 Schaltung zur Bereitstellung einer exponentiellen Vorverzerrung für einen einstellbaren Verstärker Circuit for producing exponential predistortion for an adjustable amplifier |
| 08/29/2002 | CA2439018A1 Cartesian loop systems with digital processing |
| 08/28/2002 | EP1235345A2 Analog amplifier circuit |
| 08/28/2002 | EP1234376A1 Amplifier stabilisation |
| 08/28/2002 | EP1234375A2 Control scheme for distortion reduction |
| 08/28/2002 | CN1366732A Voltage limiting bias circuit for reduction of hot electron degradation effects in MOS cascode circuits |
| 08/28/2002 | CN1089985C Distortion compensating circuit, receiver, base station and radio communication system |