| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 07/18/2007 | EP1728320A4 Method and apparatus for doherty amplifier biasing |
| 07/18/2007 | EP1695438A4 Amplifier linearization using non-linear predistortion |
| 07/18/2007 | EP1262020A4 High sheet mos resistor method and apparatus |
| 07/18/2007 | CN1327620C Method for avoiding interference radiation of AM transmitters used in digital transmission |
| 07/18/2007 | CN1327609C Method for controlling amplification of high-frequency signal and corresponding transmiting/receiving cell |
| 07/18/2007 | CN1327529C Improved heat dissipation in an amplifier circuit by interleaved configuration of two power transistors |
| 07/18/2007 | CN101002394A A radio transmitter and a method of operating a radio transmitter |
| 07/18/2007 | CN101002382A Current-mode instrumentation amplifier |
| 07/18/2007 | CN101002380A Dual mode audio amplifier |
| 07/18/2007 | CN101002379A Auxiliary transistor gate bias control system and method |
| 07/18/2007 | CN101001079A Transimpedance amplifier with negative impedance compensation function |
| 07/18/2007 | CN101001078A Low voltage negative feedback transconductance amplifier |
| 07/18/2007 | CN101001077A Timing adjusting method and timing adjusting apparatus |
| 07/17/2007 | US7245189 High linearity digital variable gain amplifier |
| 07/17/2007 | US7245184 High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof |
| 07/17/2007 | US7245183 Apparatus, methods and articles of manufacture for processing an electromagnetic wave |
| 07/17/2007 | US7245182 High frequency amplifier circuit |
| 07/17/2007 | US7245181 Linear amplifier |
| 07/17/2007 | US7245179 Auto gain controller |
| 07/17/2007 | US7243706 Heatsink for power devices |
| 07/12/2007 | WO2007078669A1 Amplifier output filter having planar inductor |
| 07/12/2007 | WO2007078217A1 Efficient composite amplifier |
| 07/12/2007 | WO2007077838A1 Polar coordinate modulated transmission device, adaptive distortion compensation processing system, polar coordinate modulated transmission method, and adaptive distortion compensation processing method |
| 07/12/2007 | WO2007077409A1 An active load pull amplifier |
| 07/12/2007 | US20070159266 Arrangement and method impedance matching |
| 07/12/2007 | US20070159258 Radiofrequency (rf) and/or microwave power amplification device and corresponding radiocommunication terminal |
| 07/12/2007 | US20070159246 Power amplifier |
| 07/12/2007 | US20070159245 Apparatus for calibrating non-linearity of radio frequency power amplifier |
| 07/12/2007 | DE102005062767A1 Kaskoden-Differenzverstärker und Differenzverstärker Cascode differential amplifier and a differential amplifier |
| 07/12/2007 | DE10031522B9 Frequenzkompensierte Verstärkeranordnung und Verfahren zum Betrieb einer frequenzkompensierten Verstärkeranordnung Frequency compensated amplifier arrangement and method for operating a frequency compensated amplifier arrangement |
| 07/11/2007 | EP1806839A1 Cascoded differential amplifier |
| 07/11/2007 | EP1806838A1 Delay controller and delay control method |
| 07/11/2007 | EP1806784A1 High-frequency integrated circuit |
| 07/11/2007 | EP1805889A1 Control circuit for controlling the current and/or voltage of an electronic circuit |
| 07/11/2007 | CN1998134A System and method for control of loop alignment in adaptive feed forward amplifiers |
| 07/11/2007 | CN1996750A Difference input range-limiting amplifier |
| 07/11/2007 | CN1996748A A balanced amplifier |
| 07/11/2007 | CN1326321C Calibration of an self-adaptive signal conditioning system |
| 07/10/2007 | US7242915 Timing based LNA gain adjustment in an RF receiver to compensate for intermodulation interference |
| 07/10/2007 | US7242253 Low noise amplifier |
| 07/10/2007 | US7242250 Power amplifier |
| 07/10/2007 | US7242247 Distortion compensation circuit, power amplifier using distortion compensation circuit, and distortion compensation signal generating method |
| 07/05/2007 | WO2007074663A1 Transmitter apparatus |
| 07/05/2007 | US20070154033 Audio source separation based on flexible pre-trained probabilistic source models |
| 07/05/2007 | US20070153936 Digitally convertible radio |
| 07/05/2007 | US20070152755 Regulated Power Supply Unit |
| 07/05/2007 | US20070152751 Wide bandwidth, high power amplifier |
| 07/05/2007 | US20070152735 Semiconductor integrated circuit device |
| 07/05/2007 | DE102004063200B4 Signalverstärkungsverfahren und Verstärkeranordnung Signal amplification method and amplifier arrangement |
| 07/04/2007 | EP1804379A1 Method of controlling the ratio of the amplification factors of two linear amplifiers, and corresponding device |
| 07/04/2007 | CN2919695Y Low-noise amplifier on top of tower |
| 07/04/2007 | CN2919690Y L wave band DMB high-linear power amplifier |
| 07/04/2007 | CN1993882A Power amplifier and pulse-width modulated amplifier |
| 07/04/2007 | CN1993665A Precision chopper-stabilized current mirror |
| 07/04/2007 | CN1992520A Precision triangular wave generator |
| 07/04/2007 | CN1992510A Timing controller and timing control method |
| 07/04/2007 | CN1992509A 功率放大器 PA |
| 07/04/2007 | CN1324812C LINC power transmitter |
| 07/04/2007 | CN1324806C 放大电路 Amplifier |
| 07/03/2007 | US7239984 Outlier correction |
| 07/03/2007 | US7239735 Pattern inspection method and pattern inspection device |
| 07/03/2007 | US7239203 LMS-based adaptive pre-distortion for enhanced power amplifier efficiency |
| 07/03/2007 | US7239202 Variable-gain constant-bandwidth transimpedance amplifier |
| 07/03/2007 | US7239201 Apparatus for controlling modulation of an alternating waveform on a DC voltage signal within a low-noise block controller |
| 07/03/2007 | US7239200 Power amplifying apparatus |
| 07/03/2007 | US7239199 Amplifier calibration |
| 07/03/2007 | US7239169 Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof |
| 06/28/2007 | WO2007073341A2 Digital feedback to improve the sound reproduction of an electro-dynamic loudspeaker |
| 06/28/2007 | WO2007019281A3 Origami cascaded topology for analog and mixed-signal applications |
| 06/28/2007 | US20070149151 LINC power transmitter |
| 06/28/2007 | US20070147635 System and method for separation of a user's voice from ambient sound |
| 06/28/2007 | US20070147553 Automatically setting an operative state of a wideband amplifier |
| 06/28/2007 | US20070147541 Transmitter apparatus and wireless communication apparatus |
| 06/28/2007 | US20070146179 Digital linearizing system |
| 06/28/2007 | US20070146076 Power amplifier unit, communication terminal and control method of power amplifier unit |
| 06/28/2007 | US20070146074 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain |
| 06/28/2007 | US20070146065 Chopper amplifier circuit and semiconductor device |
| 06/28/2007 | US20070146049 Semiconductor integrated circuit device |
| 06/28/2007 | US20070146045 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 06/27/2007 | EP1802164A1 Signal amplifying circuit and acceleration sensor having the same |
| 06/27/2007 | EP1801968A1 Broadband balun structure |
| 06/27/2007 | EP1801964A1 Method for correcting an analogue amplifier output signal, amplifier module and measurement device |
| 06/27/2007 | EP1800398A2 Unified analog input front end apparatus and method |
| 06/27/2007 | EP1800397A1 Rf input stage for low noise amplifier or mixer |
| 06/27/2007 | EP1800396A1 An arrangement and a method relating to signal predistortion |
| 06/27/2007 | EP1800395A1 Dual bias control circuit |
| 06/27/2007 | EP1800367A1 Reconfigurable radiation desensitivity bracket systems and methods |
| 06/27/2007 | EP1634379A4 Digitally adaptive modulated transmitter |
| 06/27/2007 | EP1620942A4 Rf amplifier employing active load linearization |
| 06/27/2007 | EP1230734B1 Adaptive dead time control for push-pull switching circuits |
| 06/27/2007 | CN1989752A A transmitter and method for operating same |
| 06/27/2007 | CN1988373A Device and method for controlling a voltage control signal |
| 06/27/2007 | CN1988372A 套筒式放大器 Telescopic amplifier |
| 06/27/2007 | CN1987363A Method for correcting an analogue amplifier output signal, amplifier module and measurement device |
| 06/26/2007 | US7236753 Direct outphasing modulator |
| 06/26/2007 | US7236052 Adaptive predistortion for a transmit system |
| 06/26/2007 | US7236049 Circuit arrangement and transistor control method |
| 06/21/2007 | US20070139117 Amplifier and communication apparatus |
| 06/21/2007 | US20070139108 Method and apparatus for performing digital pre-distortion |
| 06/21/2007 | DE202007004914U1 Gehäuse für eine Klangerzeugungsvorrichtung, insbesondere für einen Musikverstärker A housing for a sound producing device, particularly for a music amplifier |