| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 09/19/2000 | US6121832 Intermediate amplifier device for a transmission network |
| 09/14/2000 | WO2000054403A1 Methods and apparatus for noise shaping a mixed signal power output |
| 09/14/2000 | WO2000054402A1 Power efficient line driver |
| 09/14/2000 | DE10011658A1 Verfahren für die Korrektur frequenzabhängiger, nichtlinearer Fehler und digitaler Korrekturschaltkreis für seine Verwirklichung A method for the correction of frequency-dependent non-linear error correction and digital circuit for its realization |
| 09/13/2000 | EP1035460A1 Current source |
| 09/13/2000 | EP1034613A2 Converter circuit and variable gain amplifier with temperature compensation |
| 09/13/2000 | CN1266311A Electronic equipment with power amplifier |
| 09/12/2000 | US6118991 Device including a broadband amplifier circuit |
| 09/12/2000 | US6118989 High frequency variable gain amplifier device and wireless communications terminal |
| 09/12/2000 | US6118342 System and method for providing precise RF amplifier gain control over temperature |
| 09/12/2000 | US6118341 Device with common mode feedback for a differential output |
| 09/12/2000 | US6118339 Amplification system using baseband mixer |
| 09/12/2000 | US6118336 Start-up circuit for self oscillating class D modulator |
| 09/12/2000 | US6118335 Method and apparatus for providing adaptive predistortion in power amplifier and base station utilizing same |
| 09/12/2000 | US6118327 Emitter follower circuit having no temperature dependency |
| 09/12/2000 | US6118322 Method and apparatus for reducing even order distortion in differential circuits |
| 09/07/2000 | DE19909492A1 Differenzverstärker Differential amplifier |
| 09/07/2000 | DE10010153A1 Switching capacitor bias voltage circuit has bias voltage stage coupled to current mirror stage that receives node voltage and produces bias voltage in accordance with it |
| 09/06/2000 | EP1033809A1 Differential amplifier |
| 09/06/2000 | EP1033808A2 A cartesian loop transmitter |
| 09/06/2000 | EP1033642A1 Feedback-controlled low voltage current sink/source |
| 09/06/2000 | EP1032973A1 An amplifier and a method of power amplification |
| 09/06/2000 | CN1056256C 功率放大器及功率放大方法 Power amplifier and power amplification method |
| 09/05/2000 | US6115587 Radio signal power control method according to variation of frequency and temperature in paging transmitter |
| 09/05/2000 | US6114980 Method and apparatus for settling a DC offset |
| 09/05/2000 | US6114910 Temperature compensated amplifier and operating method |
| 09/05/2000 | US6114904 Fast amplifier output stage |
| 09/05/2000 | US6114900 Manufacturing independent constant current power source |
| 09/05/2000 | US6114893 Gain stage with improved power supply rejection |
| 09/04/2000 | CA2296829A1 Feedback-controlled low voltage current sink/source |
| 08/30/2000 | EP1032132A1 An output buffer for a low voltage differential signaling receiver |
| 08/30/2000 | EP1032122A2 Distortion compensating device |
| 08/30/2000 | EP1032121A1 Electronic apparatus with a power amplifier |
| 08/30/2000 | EP1032120A2 Power amplifier, power control method for power amplifier, and communication equipment |
| 08/30/2000 | EP0759227B1 Terminal for a satellite communication system including a phase linear class e amplifier |
| 08/30/2000 | CN1056023C Improved composite bridge amplifier with output overload and thermal protection |
| 08/29/2000 | US6112062 Predistortion for high power amplifiers |
| 08/29/2000 | US6111965 Method and apparatus for offset compensation of a signal processing circuit |
| 08/29/2000 | US6111466 Amplifier with feedback to provide bias adjustment |
| 08/29/2000 | US6111465 Amplifying unit comprising an input transformer capable of contributing to a wider frequency band of a broadband amplifier |
| 08/29/2000 | US6111464 Amplifier having bias circuit self-compensating for VGS process variation and IDS aging |
| 08/29/2000 | US6111463 Operational transconductance amplifier and multiplier |
| 08/29/2000 | US6111462 RF power amplifier linearization using parallel RF power amplifiers having intermod-complementing predistortion paths |
| 08/29/2000 | US6111461 High frequency amplifier circuit |
| 08/29/2000 | US6111460 Vacuum tube differential preamplifier having a transformer with a center tap |
| 08/29/2000 | US6111459 Multi mode power amplifier and communication unit |
| 08/24/2000 | WO2000049711A1 Distortion control |
| 08/24/2000 | DE19902519A1 Hybrid-Leistungs-MOSFET für hohe Stromtragfähigkeit Hybrid power MOSFET for high current carrying capacity |
| 08/23/2000 | EP1030441A2 Feedforward amplifier |
| 08/23/2000 | CN1055810C Amplifier with feedback having high power supply rejection |
| 08/22/2000 | US6108428 Tone control device and sound volume/tone control device for reducing noise at the time of tone modification |
| 08/22/2000 | US6108385 Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems |
| 08/22/2000 | US6108351 Non-linearity estimation method and device |
| 08/22/2000 | US6108182 Overcurrent sensing circuit and self adjusting blanking |
| 08/22/2000 | US6107886 High-efficiency power amplifier |
| 08/22/2000 | US6107884 Low-distortion high-efficiency amplifier |
| 08/22/2000 | US6107880 Method and apparatus for increasing the linearity of the phase and gain of a power amplifier circuit |
| 08/22/2000 | US6107877 Predistortion generator coupled with an RF amplifier |
| 08/22/2000 | US6107872 Adaptive control of RF power amplifier power supply voltage |
| 08/22/2000 | US6107865 VSS switching scheme for battery backed-up semiconductor devices |
| 08/22/2000 | US6107858 OTA squarer and hyperbolic sine/cosine circuits using floating transistors |
| 08/17/2000 | WO2000048310A1 Amplifier having redundancies |
| 08/17/2000 | WO2000048309A2 Method and apparatus for digitally linearising an amplifier |
| 08/17/2000 | WO2000048308A1 Signal processing apparatus |
| 08/17/2000 | WO2000048307A1 High-efficiency modulating rf amplifier |
| 08/17/2000 | WO2000048306A1 High-efficiency amplifier output level and burst control |
| 08/17/2000 | WO2000048305A1 Communication device |
| 08/17/2000 | WO2000016475A9 In-line, unbalanced amplifier, pre-distortion circuit |
| 08/16/2000 | EP1028523A1 Linearising circuit and method, particularly for microwave radiofrequency systems |
| 08/16/2000 | EP1028522A1 Communication device |
| 08/16/2000 | EP1027769A1 Method and device in a telecommunication system |
| 08/16/2000 | CN1055583C Power amplifier with clipping level control |
| 08/15/2000 | US6104919 Intermodulation distortion reduction circuit utilizing variable attenuation |
| 08/15/2000 | US6104249 Highly linear transconductance circuit and filter using same |
| 08/15/2000 | US6104248 Audio amplifier with tracking power supply utilizing inductive power converters |
| 08/15/2000 | US6104243 Integrated temperature-compensated amplifier circuit |
| 08/15/2000 | US6104242 Highly linear transconductor with passive feedback |
| 08/15/2000 | US6104241 High efficiency feed-forward RF power amplifier with predistoration enchancement |
| 08/15/2000 | US6104239 Method for correcting frequency-varying nonlinear errors and digital correction circuit implementing same |
| 08/15/2000 | US6104232 DC output level compensation circuit |
| 08/15/2000 | US6104120 Electric charge type sensor |
| 08/15/2000 | US6104072 Analogue MISFET with threshold voltage adjuster |
| 08/15/2000 | CA2051227C Apparatus and method for linearizing the operation of an external optical modulator |
| 08/10/2000 | WO2000046919A2 A circuit for compensating noise and errors from an output stage of a digital amplifier |
| 08/10/2000 | WO2000046918A1 Method and circuit for controlling the compensation of offset voltages of a radio receiver circuit which is integrated in a circuit module |
| 08/10/2000 | WO2000046917A1 Adjustable radio frequency power amplifier and transmitter |
| 08/10/2000 | WO2000046916A1 A closed loop calibration for an amplitude reconstruction amplifier |
| 08/10/2000 | WO2000046915A1 Methods and apparatus for controlling power amplifier quiescent current in a wireless communication device |
| 08/10/2000 | WO2000027038A3 Radio frequency transmitters |
| 08/10/2000 | DE10000484A1 Spannung/Strom-Wandler Voltage / current converter |
| 08/09/2000 | EP1026822A2 A method and an arrangement for compensating the temperature drift of a detector and a control signal in periodic control |
| 08/09/2000 | EP1025639A1 Transimpedance amplifier with automatic gain control |
| 08/09/2000 | EP1025638A1 Linearization method and amplifier arrangement |
| 08/09/2000 | EP1025637A2 Adaptation method and amplifier arrangement |
| 08/09/2000 | EP1025636A2 Control method and control arrangement |
| 08/09/2000 | CN1262811A High speed and high gain operational amplifier |
| 08/08/2000 | US6101373 Amplifier system |
| 08/08/2000 | US6100758 Low noise resistively matched amplifier |
| 08/08/2000 | US6100757 Variable time delay network method and apparatus therof |
| 08/08/2000 | US6100756 Method and apparatus for high efficiency power amplification |