| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 12/05/2007 | EP1310041B1 Digital class-d audio amplifier |
| 12/05/2007 | CN200986578Y Low noise amplifier monitor alarming device |
| 12/05/2007 | CN101083469A Tuner, digital demodulating apparatus, controlling method of the apparatus, computer program product for the apparatus, recording medium recording thereon the product, and digital receiver |
| 12/05/2007 | CN101083452A Amplifier for power supply voltage higher than working voltage |
| 12/05/2007 | CN101083451A Digital auto-calibration operational amplification offset voltage circuit and method thereof |
| 12/05/2007 | CN100353675C Multimodulation transmitter |
| 12/05/2007 | CN100353439C Method and apparatus for compensation of second order distortion |
| 12/04/2007 | US7305190 Optical dispersion correction in transimpedance amplifiers |
| 12/04/2007 | US7305041 Peak suppression of multi-carrier signal with different modulation |
| 12/04/2007 | US7304549 Method and apparatus for dual use of singly and doubly terminated networks |
| 12/04/2007 | US7304540 Source follower and current feedback circuit thereof |
| 12/04/2007 | US7304539 High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 12/04/2007 | US7304538 Accurate quiescent current control scheme in floating controlled class AB amplifier |
| 12/04/2007 | US7304537 Power amplification apparatus of a portable terminal |
| 12/04/2007 | US7304536 Nested transimpendance amplifier |
| 12/04/2007 | US7304534 Amplifier arrangement, and method for compensating for an offset |
| 11/29/2007 | WO2007135961A1 Transmission modulating device |
| 11/29/2007 | WO2007135139A1 Circuit for limiting the output swing of an amplifier |
| 11/29/2007 | WO2007134637A1 An apparatus for monitoring non-linear distortions of radio signals and a method therefor |
| 11/29/2007 | US20070273449 Power Amplifier with Stabilising Network |
| 11/29/2007 | US20070273440 Digital Amplifier |
| 11/29/2007 | US20070273354 Control Circuit For Diode Based Rf Circuits |
| 11/29/2007 | DE102006035817A1 Look up table division adjustment device for linearizing power amplifier, has division adapter customizing online division of table, where customized division adjusts inter-modulation distortion power at output of amplifier |
| 11/28/2007 | EP1860770A1 Distortion compensating apparatus and method |
| 11/28/2007 | EP1522142B1 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 11/28/2007 | EP1433185B1 Interface module for a controlled component |
| 11/28/2007 | EP1332551B1 Amplifier linearisation |
| 11/28/2007 | CN101080868A Predistorter |
| 11/28/2007 | CN101079602A Automatic input-gain control circuit and method thereof |
| 11/28/2007 | CN101079599A An implementation method and device for quickly responding to switch power amplification |
| 11/28/2007 | CN101079598A High-frequency power amplifier and communication device |
| 11/28/2007 | CN101079596A Wide frequency low-noise amplifier |
| 11/28/2007 | CN101079595A Apparatus and method of dynamically adapting the lut spacing for linearizing a power amplifier |
| 11/28/2007 | CN101079594A Single-end input and dual-end output amplifier circuit and signal processing circuit |
| 11/28/2007 | CN100351845C Amplifier modulation |
| 11/27/2007 | US7301533 Buffer circuit and active matrix display using the same |
| 11/27/2007 | US7301459 Closed loop transmitter control for power amplifier in an EAS system |
| 11/27/2007 | US7301402 Soft saturation detection for power amplifiers |
| 11/27/2007 | US7301401 Low noise op amp |
| 11/27/2007 | US7301397 Enhanced efficiency feed forward power amplifier with delay mismatched error cancellation loop |
| 11/27/2007 | US7301396 System and method for distortion cancellation in amplifiers |
| 11/27/2007 | US7301395 Doherty amplifier |
| 11/27/2007 | US7301394 Impedance matched variable gain low noise amplifier using shunt feed-back |
| 11/27/2007 | US7301393 Low distortion class-D amplifier using carrier reference signal symmetry modulation |
| 11/27/2007 | US7301353 Sensor element for providing a sensor signal, and method for operating a sensor element |
| 11/22/2007 | WO2007133416A1 Dual op amp ic with single low noise op amp configuration |
| 11/22/2007 | WO2007132297A1 Amplifier circuit and integrated circuit therefor |
| 11/22/2007 | WO2007103401A8 Apparatus for and method of biasing a transistor |
| 11/22/2007 | US20070268074 Dynamically Biased Amplifier |
| 11/22/2007 | US20070268072 Low return loss resistive feedback amplifier |
| 11/22/2007 | US20070268070 Power amplifier using transmission line transformer |
| 11/21/2007 | EP1858158A1 Strain compensation device |
| 11/21/2007 | EP1856798A1 Measurement circuit and method for measuring the level of an rf signal, and a transmitter including a measurement circuit |
| 11/21/2007 | EP1451926B1 Power amplifier control |
| 11/21/2007 | EP1310042B1 Noise and input impedance matched amplifier |
| 11/21/2007 | CN101076281A Apparatus and method for reducing interference |
| 11/21/2007 | CN100350741C Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 11/21/2007 | CN100350740C Voltage level translation circuits |
| 11/21/2007 | CN100350738C AB amplifier for controlling static current |
| 11/20/2007 | US7299015 Transmission output control circuit, and wireless device using the same |
| 11/20/2007 | US7298600 Semiconductor integrated circuit device |
| 11/20/2007 | US7298215 Amplifying circuit |
| 11/20/2007 | US7298214 Amplifying circuit with variable supply voltage |
| 11/20/2007 | US7298211 Power amplifying apparatus |
| 11/20/2007 | US7298210 Fast settling, low noise, low offset operational amplifier and method |
| 11/20/2007 | US7298209 Class D amplifier |
| 11/20/2007 | US7298205 Amplifier and frequency converter |
| 11/20/2007 | US7298203 Amplification system capable of reducing DC offset |
| 11/20/2007 | US7298151 Methods and apparatus for reducing thermal noise |
| 11/15/2007 | WO2007129118A1 Rf power amplifiers |
| 11/15/2007 | WO2007128862A1 Method and arrangement for optimizing efficiency of a power amplifier |
| 11/15/2007 | WO2007092148A3 Power amplifier with close-loop adaptive voltage supply |
| 11/15/2007 | WO2002091565A3 Signal amplifying method, signal amplifier and devices related therewith |
| 11/15/2007 | US20070266069 Multi-Dimensional Hybrid And Transpose Form Finite Impulse Response Filters |
| 11/15/2007 | DE102006019888A1 Verstärker mit ESD-Schutz Amplifier with ESD protection |
| 11/15/2007 | CA2744952A1 Multipoint touch surface controller |
| 11/15/2007 | CA2744845A1 Multipoint touch surface controller |
| 11/14/2007 | EP1855386A2 Adaptive control apparatus |
| 11/14/2007 | EP1855385A2 Adaptive control apparatus |
| 11/14/2007 | EP1855379A1 Output power control of an RF amplifier |
| 11/14/2007 | EP1854259A1 Iq-modulator pre-distortion |
| 11/14/2007 | EP1854208A2 Method and apparatus for an improved power amplifier |
| 11/14/2007 | EP1854207A1 Monolithically integrated power amplifier device |
| 11/14/2007 | EP1694285A4 A transmitter circuit and method for modulation distortion compensation |
| 11/14/2007 | EP1364458B1 Protection circuit for extending headroom with off-chip inductors |
| 11/14/2007 | CN200976570Y High-frequency power amplifier circuit |
| 11/14/2007 | CN200976569Y CMOS wideband low noise amplifier using active inductance as loading |
| 11/14/2007 | CN200976568Y Power amplifier circuit |
| 11/14/2007 | CN101073200A Predistortion method and device based on vector envelope injection |
| 11/14/2007 | CN101072220A Radical basis function neural network predistortion method for adaptive power amplifier |
| 11/14/2007 | CN101072012A Load driving apparatus and electric appliance therewith |
| 11/14/2007 | CN100349376C Preparing device and method for imput and set of predistortion comparative signal in amplifier |
| 11/13/2007 | US7295819 Signal sample acquisition techniques |
| 11/13/2007 | US7295605 Adaptive equalizer with DC offset compensation |
| 11/13/2007 | US7295066 Adaptive predistortion for a transmit system |
| 11/13/2007 | US7295064 Doherty amplifier |
| 11/13/2007 | US7295062 Pulse modulated power converter |
| 11/13/2007 | US7295061 Fully integrated programmable gain chopper amplifier with self DC offset suppression |
| 11/08/2007 | WO2007125895A1 Amplification circuit |
| 11/08/2007 | WO2007125873A1 Infrared sensor |