| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/15/2004 | US20040135632 Variable gain amplifier |
| 07/15/2004 | US20040135630 Composite amplifier with optimized linearity and efficiency |
| 07/15/2004 | US20040135627 Current feedback circuit and feedback amplifier using the same |
| 07/15/2004 | US20040135598 Input circuit |
| 07/15/2004 | DE10350244A1 Mit höherer Spannung betreibbare Niederspannungsschaltung Higher voltage operated low voltage circuit |
| 07/14/2004 | EP1437827A1 Power amplification device, in particular for a cellular mobile phone |
| 07/14/2004 | EP1437825A1 Intermodulation product cancellation in communication systems |
| 07/14/2004 | EP1436892A2 System and method for improving input return loss in rf amplifiers |
| 07/14/2004 | EP1436764A1 Amplifier modulation |
| 07/14/2004 | EP1012967B1 A linear rf power amplifier with optically activated switches |
| 07/14/2004 | CN1513227A Reflection loss suppression circuit |
| 07/14/2004 | CN1512688A Clearing intermodulation product in communication |
| 07/14/2004 | CN1512664A 放大电路 Amplifier |
| 07/14/2004 | CN1512663A 电流反馈电路 Current feedback circuit |
| 07/14/2004 | CN1512661A Variable time constant circuit and filter circuit using it |
| 07/14/2004 | CN1512660A Electronic device with sound output device |
| 07/14/2004 | CN1512583A Current compensation circuit for light leakage and light signal circuit using said circuit |
| 07/14/2004 | CN1157847C Amplifier and method of canceling distortion by combining hyperbolic tangent and hyperbolic sine transfer functions |
| 07/13/2004 | US6763228 Precision automatic gain control circuit |
| 07/13/2004 | US6763114 Multiple channel class D audio amplifier |
| 07/13/2004 | US6762653 Microwave power amplifier |
| 07/13/2004 | US6762646 Modified folded cascode amplifier |
| 07/13/2004 | US6762645 Low power audio device |
| 07/13/2004 | US6762644 Apparatus and method for a nested transimpedance amplifier |
| 07/13/2004 | US6762643 High duty cycle offset compensation for operational amplifiers |
| 07/13/2004 | US6762641 Voltage level translation circuits |
| 07/13/2004 | US6762628 Method for operating a comparator and a pre-amplifier of an integrated circuit, which pre-amplifier is connected in series to the comparator, as well as an integrated circuit arrangement comprising a comparator and a pre-amplifier which is connected in series to the comparator |
| 07/13/2004 | US6762624 Current mode logic family with bias current compensation |
| 07/13/2004 | US6762596 Constant voltage circuit and infrared remote control receiver using the same |
| 07/13/2004 | US6762493 Microwave integrated circuit |
| 07/08/2004 | WO2004057758A1 Peak power limitation in an amplifier pooling scenario |
| 07/08/2004 | WO2004057757A1 Audio amplifier |
| 07/08/2004 | WO2004057756A1 Power amplifier with bias control |
| 07/08/2004 | WO2004057755A1 Composite amplifier structure |
| 07/08/2004 | WO2004057754A1 Method and apparatus for efficient amplification |
| 07/08/2004 | WO2004057666A2 Rf power transistor with internal bias feed |
| 07/08/2004 | WO2004057587A1 Arrangement for reading an information carrier |
| 07/08/2004 | WO2004051875B1 Digitally convertible radio |
| 07/08/2004 | WO2004023631A3 Power supply based audio compression for digital audio amplifier |
| 07/08/2004 | WO2004019483A3 Providing dc isolation in switching amplifiers |
| 07/08/2004 | WO2003103149A3 Apparatus for detecting the envelope of rf power signals |
| 07/08/2004 | US20040132404 Amplifier system for satellites |
| 07/08/2004 | US20040131210 Amplifying circuit |
| 07/08/2004 | US20040131193 Audio reproducing device and method, audio amplifier, and integrated circuit for audio amplifier |
| 07/08/2004 | US20040130417 Broadband amplifier |
| 07/08/2004 | US20040130411 Band reject filters |
| 07/08/2004 | US20040130399 Low noise amplifiers |
| 07/08/2004 | US20040130398 Ultra wide band low noise amplifier and method |
| 07/08/2004 | US20040130397 Transimpedance amplifier for photodiode |
| 07/08/2004 | US20040130396 VHF/UHF broadband high power amplifier module |
| 07/08/2004 | US20040130395 Current steering circuit for amplifier |
| 07/08/2004 | US20040130393 Wideband precision fixed-gain amplifier architecture, apparatus, and method |
| 07/08/2004 | US20040130392 Multi-band amplifier |
| 07/08/2004 | US20040130390 Travelling wave amplifiers |
| 07/08/2004 | US20040130389 Digital amplifier |
| 07/08/2004 | US20040130378 Leak current compensating device and leak current compensating method |
| 07/08/2004 | US20040130377 Switched capacitor amplifier circuit and electronic device |
| 07/08/2004 | US20040130374 Bias circuit linearization and dynamic power control |
| 07/08/2004 | US20040130359 Current sensing circuit and method of a high-speed driving stage |
| 07/08/2004 | US20040130353 Sense amplifier with feedback-controlled bitline access |
| 07/08/2004 | US20040130306 Voltage regulator |
| 07/08/2004 | US20040129862 Wideband transimpedance amplifier with automatic gain control |
| 07/07/2004 | EP1435695A1 DELTA−SIGMA MODULATION APPARATUS AND SIGNAL AMPLIFICATION APPARATUS |
| 07/07/2004 | EP1435693A1 Amplification circuit |
| 07/07/2004 | EP1435690A1 Digital amplifier |
| 07/07/2004 | CN2624561Y 基站功率放大器 Base station power amplifiers |
| 07/07/2004 | CN1511372A Power amplifier array with same type predistortion amplifier |
| 07/07/2004 | CN1511320A Method and apparatus for compensation of second order distortion |
| 07/07/2004 | CN1511261A Low-loss tunable ferro-electric device and method of characterization |
| 07/07/2004 | CN1510831A Bias circuit of radio frequency power amplifier |
| 07/07/2004 | CN1156990C Active biased network circuit for radio frequency amplifier |
| 07/07/2004 | CN1156973C Wave filter circuit |
| 07/07/2004 | CN1156972C 有源滤波器电路 Active filter circuit |
| 07/07/2004 | CN1156960C Method and device for regulating parameters of power apparatus |
| 07/06/2004 | US6760604 Portable radio transceiver having shared power source for audio and RF amplifiers |
| 07/06/2004 | US6760552 Optical receiving circuit and optical communication device |
| 07/06/2004 | US6760265 Read amplifier with a low current consumption differential output stage |
| 07/06/2004 | US6759917 Method and apparatus for adjusting impedance of matching circuit |
| 07/06/2004 | US6759908 High frequency power amplifier |
| 07/06/2004 | US6759907 Distributed level-shifting network for cascading broadband amplifiers |
| 07/06/2004 | US6759906 High frequency power amplifier circuit device |
| 07/06/2004 | US6759905 Analog input circuit with common mode compatibility to both supply nodes |
| 07/06/2004 | US6759903 Amplifier |
| 07/06/2004 | US6759900 High bandwidth and wide dynamic range preamplifier with high stability |
| 07/06/2004 | US6759899 Class-D amplifier with digital feedback |
| 07/06/2004 | US6759898 Dual input differential amplifier |
| 07/06/2004 | US6759880 Driver circuit connected to a switched capacitor and method of operating same |
| 07/06/2004 | US6759868 Circuit and method for compensation if high-frequency signal loss on a transmission line |
| 07/06/2004 | US6759701 Transistor circuit |
| 07/01/2004 | WO2004056061A2 Adaptive controller for linearization of transmitter |
| 07/01/2004 | WO2004055979A1 Single package multi-chip rf power amplifier |
| 07/01/2004 | WO2004055978A1 Circuit and method for reducing second order distortion in differential amplifiers |
| 07/01/2004 | WO2004055974A1 Adaptive controller for linearization of transmitter |
| 07/01/2004 | WO2004055970A1 Activation signal output circuit and determining circuit |
| 07/01/2004 | WO2004045091A3 Rf circuit with frequency agile sequential amplifiers |
| 07/01/2004 | WO2004038910A3 Predistortion linearizing |
| 07/01/2004 | WO2004025827A3 Transconductance amplifiers |
| 07/01/2004 | WO2003084054A3 Amplifier and frequency converter |
| 07/01/2004 | US20040127183 Intermodulation product cancellation in communications |
| 07/01/2004 | US20040125968 Monolithic class D amplifier |