| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 12/15/2004 | EP1487099A2 Digital power amplifier |
| 12/15/2004 | EP1486005A1 Method and apparatus using base band transformation to improve transmitter performance |
| 12/15/2004 | EP1485995A1 Front stage amplifier with different modes |
| 12/15/2004 | EP1485994A2 Arrangement for reducing non-linear distortions in an output signal of an amplifier stage |
| 12/15/2004 | EP1485993A1 R.f. output power control |
| 12/15/2004 | CN1180588C Arrangement for reducing power dissipation in line driver |
| 12/14/2004 | US6831954 Apparatus, and associated method, for compensating for distortion introduced upon a send signal by an amplifier |
| 12/14/2004 | US6831519 Efficient supply enhancement circuitry for power amplifiers |
| 12/14/2004 | US6831518 Current steering circuit for amplifier |
| 12/14/2004 | US6831517 Bias-management system and method for programmable RF power amplifier |
| 12/14/2004 | US6831514 Method of increasing output current capability of negative feedback amplifiers with output current limiting and freedom from thermal runaway |
| 12/14/2004 | US6831512 Self-calibrated power amplifier linearizers |
| 12/14/2004 | US6831511 Distortion cancellation for RF amplifiers using complementary biasing circuitry |
| 12/14/2004 | US6831509 Switching amplification apparatus |
| 12/14/2004 | US6831508 Switching power amplifier, and switching control method for a switching power amplifier |
| 12/09/2004 | WO2004107566A2 Temperature and process compensation of mosfet operating in sub-threshold mode |
| 12/09/2004 | WO2004107563A2 High-efficiency amplifier, converter and methods |
| 12/09/2004 | WO2004107562A1 Method and apparatus for cancellation of third order intermodulation distortion and other nonlinearities |
| 12/09/2004 | WO2004100357A3 Large gain-bandwith amplifier |
| 12/09/2004 | WO2004086606A3 Amplifier circuit |
| 12/09/2004 | WO2004065996A3 Feed forward amplifier system employing self-generating alignment lists and adaptive controller |
| 12/09/2004 | WO2004062090A3 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 12/09/2004 | US20040248528 Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
| 12/09/2004 | US20040248516 Digital baseband system and process for compensating for analog radio transmitter impairments |
| 12/09/2004 | US20040247042 Digital linearization circuit |
| 12/09/2004 | US20040246760 Amplification circuit |
| 12/09/2004 | US20040246639 Electrical signal pre-conditioning |
| 12/09/2004 | US20040246170 Radar detection method and apparatus |
| 12/09/2004 | US20040246060 Modulation system |
| 12/09/2004 | US20040246054 Method and system for correcting non-linear response in amplifiers |
| 12/09/2004 | US20040246048 Calibration of an adaptive signal conditioning system |
| 12/09/2004 | DE10297259T5 Automatisches Einstellen der LDMOS-Vorspannung mit Langzeitkompensation heißer Ladungsträger Automatically adjusting the bias voltage LDMOS with long-term compensation of hot carriers |
| 12/09/2004 | DE102004011719A1 Halbleitervorrichtung mit symmetrischer Schaltung zur Verwendung in einem Hochfrequenzband A semiconductor device having a symmetrical circuit for use in a high frequency band |
| 12/09/2004 | CA2526811A1 Temperature and process compensation of mosfet operating in sub-threshold mode |
| 12/08/2004 | EP1484839A1 System and method for controlling power amplification in mobile terminals |
| 12/08/2004 | EP1483830A2 Amplifier circuits and their use in radio frequency transmitters |
| 12/08/2004 | EP1366563A4 Low noise, electric field sensor |
| 12/08/2004 | EP1309882B1 Near object detection system |
| 12/08/2004 | CN1553581A Multi-frequency band low-noise amplifier |
| 12/08/2004 | CN1553567A Energy gap reference circuit |
| 12/07/2004 | US6829471 Digital baseband receiver in a multi-carrier power amplifier |
| 12/07/2004 | US6829352 Amplifier arrangement |
| 12/07/2004 | US6828862 RF power amplifier with low intermodulation distortion and reduced memory effect |
| 12/07/2004 | US6828858 CMOS class AB power amplifier with cancellation of nonlinearity due to change in gate capacitance of a NMOS input transistor with switching |
| 12/07/2004 | US6828857 High gain, high bandwidth CMOS transimpedance amplifier |
| 12/07/2004 | US6828855 Class AB operational amplifier with split folded-cascode structure and method |
| 12/07/2004 | US6828850 Method and system for charge pump active gate drive |
| 12/07/2004 | US6828831 Circuit for controlling field effect device transconductance |
| 12/02/2004 | WO2004105235A1 Dynamic method for limiting the reverse base-emitter voltage |
| 12/02/2004 | WO2004105232A1 Amplification device |
| 12/02/2004 | WO2004105231A2 Smart linearized power amplifier and related systems and methods |
| 12/02/2004 | WO2004088837A3 Doherty amplifier with output hybrid coupler |
| 12/02/2004 | US20040240585 Time alignment of signals |
| 12/02/2004 | US20040240584 Signal processing |
| 12/02/2004 | US20040239446 System and method for adjusting group delay |
| 12/02/2004 | US20040239437 Reflection loss suppression circuit |
| 12/02/2004 | US20040239430 Cascode amplifier |
| 12/02/2004 | US20040239429 Amplifier memory effect compensator |
| 12/02/2004 | US20040239424 Temperature compensated amplifier |
| 12/02/2004 | US20040239422 Method of influencing an input signal and predistorter |
| 12/02/2004 | US20040239418 Mute circuit and BTL audio amplifier apparatus |
| 12/02/2004 | US20040239416 High-efficiency amplifier and method |
| 12/02/2004 | US20040239412 Circuit for controlling field effect device transconductance |
| 12/02/2004 | US20040239410 Current source/sink with high output impedance using bipolar transistors |
| 12/02/2004 | US20040239383 Reset signal generating circuit |
| 12/02/2004 | US20040239379 Electronic circuit, electronic device and personal computer |
| 12/01/2004 | EP1482637A1 Method of influencing an input signal and predistorter |
| 12/01/2004 | EP1482636A1 Front end module |
| 12/01/2004 | EP1482391A2 A current source/sink with high output impedance using bipolar transistors |
| 12/01/2004 | EP1350330B1 Transmitting device |
| 12/01/2004 | EP1147600A4 Noise reduction scheme for operational amplifiers |
| 12/01/2004 | EP1125362A4 Linear transconductance circuits having class ab amplifiers parallel coupled with concave compensation circuits |
| 12/01/2004 | CN1552122A 放大器电路 The amplifier circuit |
| 12/01/2004 | CN1552121A 高频功率放大器电路 High-frequency power amplifier circuit |
| 12/01/2004 | CN1551492A Audio amplifier circuit and audio ic having the same |
| 12/01/2004 | CN1551489A Variable impedance circuit, amplifier, multiplier, high-frequency circuit using same |
| 12/01/2004 | CN1551487A 功率放大器电路 Power amplifier circuit |
| 12/01/2004 | CN1551486A Integratable, voltage-controlled RF power amplifier |
| 12/01/2004 | CN1178400C Method and apparatus for wireless phone transmit power amplification with reduced power consumption |
| 12/01/2004 | CN1178380C Radio frequency receiver and radio frequency device with fast charging of input capacitance and method |
| 12/01/2004 | CN1178378C Method and apparatus for controlling the common mode impedance misbalance of an isolated sigle-ended circuit |
| 12/01/2004 | CN1178117C Amplifier for amplifying input signal |
| 11/30/2004 | US6825818 Tunable matching circuit |
| 11/30/2004 | US6825739 Switched capacitor circuit |
| 11/30/2004 | US6825727 Radio frequency power transistor avalanche breakdown detection circuit and method therefor |
| 11/30/2004 | US6825726 Power amplifier with multiple power supplies |
| 11/30/2004 | US6825725 Integrated power amplifier circuit |
| 11/30/2004 | US6825724 Amplifier and method for processing signals |
| 11/30/2004 | US6825719 RF power amplifier and methods for improving the efficiency thereof |
| 11/30/2004 | US6825718 Impedance matching circuit |
| 11/30/2004 | US6825717 Feedback network and amplifier and/or converter circuit with a feedback network |
| 11/30/2004 | US6825708 Apparatus and method for an offset-correcting sense amplifier |
| 11/30/2004 | US6825686 Line interface circuit, associated line drivers and methods of operating the same |
| 11/25/2004 | WO2004102789A2 Wideband constant-gain voltage amplifier |
| 11/25/2004 | WO2004102788A2 Rf amplifier employing active load linearization |
| 11/25/2004 | WO2004086616A3 Clip detection in pwm amplifier |
| 11/25/2004 | WO2004073164A3 Distortion cancellation for rf amplifiers using complementary biasing circuitry |
| 11/25/2004 | WO2004051844A3 Digital predistortion system for linearizing a power amplifier |
| 11/25/2004 | US20040237007 Vector monitor, related method of controlling a transmitter and transmitter employing the same |
| 11/25/2004 | US20040235435 Switchless combining of multi-carrier coherent and incoherent carriers |