| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 03/27/2007 | US7196571 Semiconductor integrated circuit device |
| 03/27/2007 | CA2360345C An amplifier circuit for correction of interference in the output signal |
| 03/22/2007 | US20070063772 Amplifier system employing analog polynomial predistortion with sub-nyquist digital adaptation |
| 03/22/2007 | US20070063771 Bias-T circuit |
| 03/22/2007 | US20070063770 Power amplifier pre-distortion |
| 03/22/2007 | US20070063769 Arrangement and method for digital predistortion of a complex baseband input signal |
| 03/22/2007 | US20070063767 Bypassable low noise amplifier topology with multi-tap transformer |
| 03/22/2007 | US20070063766 High-frequency amplifier |
| 03/22/2007 | US20070063765 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 03/22/2007 | US20070063746 Active load arrangement |
| 03/22/2007 | DE102005044710A1 Rückkopplungskorrektur für Schaltverstärker Feedback correction for amplifier |
| 03/21/2007 | EP1763921A1 Integrated doherty type amplifier arrangement with high power efficiency |
| 03/21/2007 | EP1349267B1 Amplifier circuit for am broadcasing |
| 03/21/2007 | CN2882116Y Radio frequency predistortion power amplifier |
| 03/21/2007 | CN1934783A Signal output circuit, audio signal output apparatus using the same, and electronic device |
| 03/21/2007 | CN1933344A Dual mode front end module and mobile terminal having the same |
| 03/21/2007 | CN1306701C DC offset cancellation circuit, differential amplification circuit, photo-electric pulse conversion circuit |
| 03/21/2007 | CN1306700C Pulse shaping circuit, pulse generating circuit and photo-electric pulse conversion circuit |
| 03/21/2007 | CN1306696C Variable time constant circuit and filter circuit using it |
| 03/21/2007 | CN1306667C Laser power control circuit |
| 03/20/2007 | US7194043 System and method for predistorting a signal to reduce out-of-band error |
| 03/20/2007 | US7193828 Video protection circuit providing short to battery protection while maintaining termination impedance |
| 03/20/2007 | US7193474 Current limit circuit for power amplifiers |
| 03/20/2007 | US7193472 Power amplifier |
| 03/20/2007 | US7193462 RF power amplifier system employing an analog predistortion module using zero crossings |
| 03/20/2007 | US7193461 Method and apparatus for performing digital pre-distortion |
| 03/20/2007 | US7193457 Current-mode instrumentation amplifier gain error correction circuitry |
| 03/20/2007 | CA2405949C Device and method for pretreating a signal to be transferred using a non-linear amplifier having a preceding band-pass filter |
| 03/15/2007 | US20070057733 Low noise amplifier with switch gain control |
| 03/15/2007 | US20070057730 Margin tracking cascode current mirror system and method |
| 03/15/2007 | US20070057722 Power amplification apparatus of a portable terminal |
| 03/14/2007 | EP1763130A1 Protection circuit |
| 03/14/2007 | EP1763129A1 Distortion compensation circuit |
| 03/14/2007 | CN2879535Y 室内功率放大系统 Indoor power amplification system |
| 03/14/2007 | CN2879534Y Audio power amplifier |
| 03/14/2007 | CN1930784A Transmission device and radio communication device |
| 03/14/2007 | CN1930773A Pre-distortion method, measurement arrangement, pre-distorter structure, transmitter, receiver and connecting device |
| 03/14/2007 | CN1930772A Temperature compensating circuit |
| 03/14/2007 | CN1929296A 斩波放大器电路及半导体装置 Chopper amplifier circuit and semiconductor device |
| 03/14/2007 | CN1929295A Dynamic bias circuit for a radio-frequency amplifier |
| 03/13/2007 | US7190935 Amplifier power detection circuitry |
| 03/13/2007 | US7190934 Reflected power suppression circuit |
| 03/13/2007 | US7190932 Circuit arrangement for a predistorted feedback coupling from a transmitter to a receiver in a multi-mode mobile telephone |
| 03/13/2007 | US7190223 Amplifier |
| 03/13/2007 | US7190222 Predistorter |
| 03/13/2007 | US7190220 Circuit for providing a base operating voltage for a bipolar transistor and amplifier circuit |
| 03/13/2007 | US7190218 Differential or single-ended amplifier and relative control method |
| 03/13/2007 | US7190214 Amplifier apparatus for use with a sensor |
| 03/08/2007 | WO2007028001A2 Method and device for performing offset cancellation in an amplifier using floating-gate transistors |
| 03/08/2007 | WO2007026572A1 Low noise amplifier circuit and receiving system |
| 03/08/2007 | WO2007025995A1 Device and method for amplifying pulsed rf signals |
| 03/08/2007 | US20070052481 Method and apparatus for protecting RF power amplifiers |
| 03/08/2007 | US20070052478 Low distortion class-d amplifier using carrier reference signal symmetry modulation. |
| 03/08/2007 | US20070052477 Efficient power supply for rapidily changing power requirements |
| 03/08/2007 | US20070052476 Charging circuit and control method and integrated circuit utilizing the same |
| 03/08/2007 | US20070052475 Method and apparatus for combining multiple signals for high efficiency applications |
| 03/08/2007 | US20070052474 Amplifier and device having amplifier, and mutual conductance control method |
| 03/07/2007 | EP1759526A2 Method and device using ccd-based low noise parametric amplifier |
| 03/07/2007 | EP1759454A1 Power amplifier and pulse-width modulated amplifier |
| 03/07/2007 | EP1759219A1 Method and apparatus to reduce jitter by adjusting vertical offset |
| 03/07/2007 | EP1201027B1 Parallel amplifier architecture using digital phase control techniques |
| 03/07/2007 | CN1926770A Transmitter apparatus and wireless communication apparatus |
| 03/07/2007 | CN1926761A Power amplifying apparatus, power combining system and delay measuring method for power combining system |
| 03/07/2007 | CN1926760A 高输出放大器 High-output amplifier |
| 03/07/2007 | CN1926759A 放大器 Amplifier |
| 03/07/2007 | CN1925317A AB kind amplifier |
| 03/07/2007 | CN1925316A Resistance synthesized two-way sampling loop reverse feedback method and its amplifier |
| 03/07/2007 | CN1303757C Reference voltage generating circuit and voltage amplifier adopting same |
| 03/06/2007 | US7188054 Signal processing method, signal processing program, recording medium storing the signal processing program and signal processor |
| 03/06/2007 | US7188048 Refining stochastic grid filter |
| 03/06/2007 | US7187238 Circuit for adjusting the operating point of multiple gate field effect transistors |
| 03/06/2007 | US7187237 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 03/06/2007 | US7187235 Class AB rail-to-rail operational amplifier |
| 03/06/2007 | US7187234 Decorrelated power amplifier linearizers |
| 03/06/2007 | US7187231 Apparatus, methods and articles of manufacture for multiband signal processing |
| 03/06/2007 | US7187061 Use of a down-bond as a controlled inductor in integrated circuit applications |
| 03/01/2007 | WO2007025135A2 Method and apparatus for control of transmitter power consumption |
| 03/01/2007 | WO2007023629A1 Transimpedance amplifier |
| 03/01/2007 | US20070049219 Digital baseband system and process for compensating for analog radio transmitter impairments |
| 03/01/2007 | US20070046379 Cascode connection circuit |
| 03/01/2007 | US20070046378 Operational amplifier output stage and method |
| 03/01/2007 | US20070046377 Power distribution and biasing in RF switch-mode power amplifiers |
| 03/01/2007 | US20070046376 Neutralization of feedback capacitance in amplifiers |
| 03/01/2007 | US20070046371 Power amplifier |
| 03/01/2007 | US20070046365 Bias circuit having transistors that selectively provide current that controls generation of bias voltage |
| 03/01/2007 | DE102005040110A1 Circuit arrangement for adjusting transmission characteristic slope used in e.g. capacitor filter circuit, has nonlinear function blocks used to adjust slopes of two identical transmission characteristics |
| 02/28/2007 | EP1758243A1 Low offset Sample-and-Hold and Amplifier |
| 02/28/2007 | EP1758242A1 High-efficiency amplifier |
| 02/28/2007 | EP1756945A1 Current-mode instrumentation amplifier gain error correction circuitry |
| 02/28/2007 | EP1756944A1 Current-mode instrumentation amplifier |
| 02/28/2007 | EP1756943A1 Automatic current reduction biasing technique for rf amplifier |
| 02/28/2007 | EP1756942A2 Dvd reading apparatus |
| 02/28/2007 | EP1756941A2 Multi-band low noise amplifier system |
| 02/28/2007 | EP1756940A2 System and method for control of loop alignment in adaptive feed forward amplifiers |
| 02/28/2007 | EP1756690A1 Precision chopper-stabilized current mirror |
| 02/28/2007 | EP1570571B1 Gain compensation over temperature and frequency variations in wireless transceivers |
| 02/28/2007 | EP1402625B1 Composite amplifier with optimized linearity and efficiency |
| 02/28/2007 | CN1922788A Load insensitive power amplifier |
| 02/28/2007 | CN1921296A Feedforward distortion compensation amplifier |
| 02/28/2007 | CN1921295A Cascode circuit |