| 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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| 04/28/2005 | US20050088239 Short-circuit detecting and protecting circuit for integrated circuit |
| 04/28/2005 | US20050088238 High speed amplifier incorporating pre-emphasis |
| 04/28/2005 | US20050088237 Temperature compensated power amplifier power control |
| 04/28/2005 | US20050088236 Power amplifier module |
| 04/28/2005 | US20050088235 System and method for receiver equalization |
| 04/28/2005 | US20050088232 Techniques to lower drive impedance and provide reduced dc offset |
| 04/28/2005 | US20050088230 Amplifier pre-distortion processing based on composite look-up tables |
| 04/28/2005 | US20050088226 Switching amplifier architecture |
| 04/28/2005 | US20050088199 Mos linear region impedance curvature correction |
| 04/28/2005 | US20050087688 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method |
| 04/27/2005 | EP1526637A1 Tuning RF circuits using switched inductors |
| 04/27/2005 | EP1526636A1 High linearity, high efficiency power amplifier with DSP assisted linearity optimization |
| 04/27/2005 | EP1526572A2 Semiconductor package with bond wire inductors |
| 04/27/2005 | EP1405480B1 Predistortion linearization device and method |
| 04/27/2005 | EP1247337B1 Power amplifier core |
| 04/27/2005 | EP1157457A4 A closed loop calibration for an amplitude reconstruction amplifier |
| 04/27/2005 | CN1610251A High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 04/27/2005 | CN1610250A Adaptive impedance transformer of transistor |
| 04/27/2005 | CN1610249A Amplifier pre-distortion processing based on composite look-up tables |
| 04/27/2005 | CN1610248A Low-noise amplifier |
| 04/27/2005 | CN1199502C Temperature compensation circuit of automatic gain control circuit |
| 04/27/2005 | CN1199479C Nonlinear distortion compensation circuit, transmitting apparatus and mobile communication equipment |
| 04/27/2005 | CN1199350C Overvoltage protection |
| 04/26/2005 | US6885980 Signal-processing method, signal-processing program, recording medium, storing the signal-processing program and signal processor |
| 04/26/2005 | US6885709 Method for linearising a power amplifier over a wide frequency band |
| 04/26/2005 | US6885532 Current detection and overcurrent protection for transistors in pulse-width modulation amplifier |
| 04/26/2005 | US6885341 Inverted-F ferroelectric antenna |
| 04/26/2005 | US6885263 Tunable ferro-electric filter |
| 04/26/2005 | US6885248 Single-ended differential circuit using complementary devices |
| 04/26/2005 | US6885246 High frequency amplifier |
| 04/26/2005 | US6885242 Feedforward linear amplifier |
| 04/26/2005 | US6885241 Type-based baseband predistorter function estimation technique for non-linear circuits |
| 04/21/2005 | WO2005036764A1 Power saving in a transmitter |
| 04/21/2005 | WO2005036738A1 Charge-amplifier electronic circuit |
| 04/21/2005 | WO2005036737A1 Monolithic array amplifier with periodic bias-line bypassing structure and method |
| 04/21/2005 | WO2005036735A1 Power supply compensation |
| 04/21/2005 | WO2005036734A1 Power supply compensation |
| 04/21/2005 | WO2005036733A2 Differential amplifier arrangement |
| 04/21/2005 | WO2005036732A1 Method and apparatus to match output impedance of combined outphasing power amplifiers |
| 04/21/2005 | WO2005036731A2 Power conversion system |
| 04/21/2005 | WO2004102788A3 Rf amplifier employing active load linearization |
| 04/21/2005 | WO2004047351B1 Radio frequency power amplifier adaptive bias control circuit |
| 04/21/2005 | US20050086029 Mechanism for on-line prediction of future performance measurements in a computer system |
| 04/21/2005 | US20050085205 Radio frequency unit analog level detector and feedback control system |
| 04/21/2005 | US20050085200 Antenna interface unit |
| 04/21/2005 | US20050085199 Method and apparatus for predistortion training in an amplifier utilizing predistortion |
| 04/21/2005 | US20050084120 System, circuit, and amplifier for reducing pop sound |
| 04/21/2005 | US20050083723 Output circuit for a semiconductor amplifier element |
| 04/21/2005 | US20050083234 Wireless device reconfigurable radiation desensitivity bracket systems and methods |
| 04/21/2005 | US20050083134 Amplifier circuit |
| 04/21/2005 | US20050083133 Balanced amplifier circuit and high-frequency communication apparatus |
| 04/21/2005 | US20050083131 MMIC distributed amplifier gate control using active bias |
| 04/21/2005 | US20050083130 Method and apparatus for increasing the linearity and bandwidth of an amplifier |
| 04/21/2005 | US20050083129 High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 04/21/2005 | US20050083128 [power amplifier with active bias circuit] |
| 04/21/2005 | US20050083122 Efficient broadband switching-mode amplifier |
| 04/21/2005 | US20050083121 Trace-following powered amplifier |
| 04/21/2005 | US20050083120 Data signal amplifier and processor with multiple signal gains for increased dynamic signal range |
| 04/21/2005 | US20050083119 Amplifier circuit |
| 04/21/2005 | US20050083118 Rf amplifier |
| 04/21/2005 | US20050083117 Multiple power mode amplifier with bias modulation option and without bypass switches |
| 04/21/2005 | DE10392344T5 Frequenzabhängige Amplitudenvorverzerrung zum Abschwächen von Störemissionen in Übertragungsnetzen Frequency-dependent amplitude predistortion for attenuating spurious emissions in transmission networks |
| 04/21/2005 | DE10114935B4 Monolithisch integrierter Hochspannungsverstärker Monolithic integrated high voltage amplifier |
| 04/20/2005 | EP1524766A1 Method for avoiding avalanche breakdown caused by a lateral parasitic bipolar transistor in an MOS process |
| 04/20/2005 | EP1524765A1 Power amplifier having cascode architecture with separately controlled MOS transistor and parasitic bipolar transistor |
| 04/20/2005 | EP1524764A1 Power amplifier having enhanced swing cascode architecture |
| 04/20/2005 | EP1524763A1 Modulation dependent biasing for efficient and high-linearity power amplifiers |
| 04/20/2005 | EP1523804A2 Variable gain amplifier with autobiasing supply regulation |
| 04/20/2005 | EP1466406A4 Direct conversion of low power high linearity receiver |
| 04/20/2005 | CN2694614Y Type A audio power amplifier |
| 04/20/2005 | CN2694519Y PHS active reception antenna |
| 04/20/2005 | CN1607724A Class AB rail-to-rail operational amplifier |
| 04/20/2005 | CN1607722A Architecture and implementation methods of digital predistortion circuitry |
| 04/20/2005 | CN1607721A Sound signal generating apparatus and method for reducing pop noise |
| 04/20/2005 | CN1198388C Automatic gain and phase controller and method for controlling amplitude and phase of signal |
| 04/20/2005 | CN1198387C Constant-voltage circuit and infrared telecontrol receiver using said constant-voltage circuit |
| 04/20/2005 | CN1198386C Electronic tuner |
| 04/20/2005 | CN1198385C System and method for producing amplifying signals |
| 04/19/2005 | US6882582 EEPROM circuit voltage reference circuit and method for providing a low temperature-coefficient voltage reference |
| 04/19/2005 | US6882227 Bias circuit linearization and dynamic power control |
| 04/19/2005 | US6882224 Self-biasing for common gate amplifier |
| 04/19/2005 | US6882221 Digital predistortion for power amplifier |
| 04/19/2005 | US6882220 Integrated power amplifier circuit |
| 04/19/2005 | US6882217 Cubic spline predistortion, algorithm and training, for a wireless LAN system |
| 04/19/2005 | US6882183 Multi-level output circuit |
| 04/19/2005 | US6881639 Method of manufacturing semiconductor device |
| 04/14/2005 | WO2005034340A1 Digital predistortion for power amplifier |
| 04/14/2005 | WO2005034338A2 Method for aligning feed forward loops |
| 04/14/2005 | WO2005033820A1 Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry |
| 04/14/2005 | US20050079842 Timing based LNA gain adjustment in an RF receiver to compensate for intermodulation interference |
| 04/14/2005 | US20050079836 Power amplifier having enhanced swing cascode architecture |
| 04/14/2005 | US20050079835 Transmitting method and transmitter apparatus |
| 04/14/2005 | US20050079834 Table reference type predistorter |
| 04/14/2005 | US20050078841 Method and apparatus for resetting a buffer amplifier |
| 04/14/2005 | US20050077968 Method for avoiding avalanche breakdown caused by a lateral parasitic bipolar transistor in an MOS process |
| 04/14/2005 | US20050077967 Power amplifier having cascode architecture with separately controlled MOS transistor and parasitic bipolar transistor |
| 04/14/2005 | US20050077966 Method and apparatus for realizing a low noise amplifier |
| 04/14/2005 | US20050077965 Power amplifier having low gate oxide stress |
| 04/14/2005 | US20050077964 High-frequency power amplifier |
| 04/14/2005 | US20050077963 Modulation dependent biasing for efficient and high-linearity power amplifiers |