| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 07/12/2006 | CN1801602A Integrated circuit devices having a control circuit for biasing an amplifier output stage and methods of operating the same |
| 07/12/2006 | CN1264274C Amplication systems and methods using fixed and modulated power supply voltages and buck-boost control |
| 07/11/2006 | US7076698 Vector monitor, related method of controlling a transmitter and transmitter employing the same |
| 07/11/2006 | US7076226 Variable gain amplifier for low voltage applications |
| 07/11/2006 | US7076218 Control method and circuit for using a heterojunction bipolar transistor power amplifier in a zero intermediate frequency architecture transmitter |
| 07/11/2006 | US7076070 Monolithic class D amplifier |
| 07/11/2006 | US7076009 Low power CDMA receiver |
| 07/11/2006 | US7075374 Method and apparatus to provide wideband low noise amplification |
| 07/11/2006 | US7075372 Programmable automatic signal amplitude control circuit |
| 07/11/2006 | US7075371 Distributed circular geometry power amplifier architecture |
| 07/11/2006 | US7075370 CMOS-configured transconductance amplifier circuit |
| 07/11/2006 | US7075369 Variable gain amplifier and a large scale integrated circuit installed thereof applicable to processing signals |
| 07/11/2006 | US7075368 Linear-in-decibel variable gain amplifier |
| 07/11/2006 | US7075367 Integrated circuit with an amplifier |
| 07/11/2006 | US7075348 Differential charge pump with common-mode feedback compensation |
| 07/11/2006 | US7075342 Driver circuit |
| 07/11/2006 | US7075282 Low-power bandgap reference circuits having relatively less components |
| 07/11/2006 | US7075130 Photosensitive device with low power consumption |
| 07/11/2006 | US7075051 Photosensor device and portable terminal unit having semiconductor photosensor device |
| 07/06/2006 | WO2006069749A1 Load mismatch adaptation in coupler-based amplifiers |
| 07/06/2006 | WO2005067609A3 Improved power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 07/06/2006 | US20060148290 Input circuit for vacuum electron device RF amplifier |
| 07/06/2006 | US20060148289 Input circuit for vacuum electron device RF amplifier |
| 07/06/2006 | US20060147062 Voltage supply circuit and microphone unit |
| 07/06/2006 | US20060147061 Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method |
| 07/06/2006 | US20060145766 Power amplifier with bias control |
| 07/06/2006 | US20060145765 Bias circuit |
| 07/06/2006 | US20060145763 Low voltage class ab transconductor circuits |
| 07/06/2006 | US20060145762 Gain boosting for tuned differential LC circuits |
| 07/06/2006 | US20060145761 High efficiency switch-mode power amplifier |
| 07/06/2006 | US20060145757 Power amplifying apparatus using asymmetric power drive |
| 07/06/2006 | US20060145756 Apparatus and method for processing description information of multimedia data |
| 07/06/2006 | US20060145755 Square wave modulation design for a class-D audio amplifier |
| 07/06/2006 | US20060145059 Isolation of short-circuited sensor cells for high-reliability operation of sensor array |
| 07/06/2006 | DE19632067B4 Niederfrequenzsignal-Verstärkerschaltung Low frequency signal amplifier circuit |
| 07/06/2006 | DE19534382B4 Monolithisch integrierte Schaltung mit einem Mikrowellen-Leistungsverstärker mit einer Anpassungsschaltung unter Verwendung verteilter Leitungen Monolithic integrated circuit with a microwave power amplifier with a matching circuit using distributed lines |
| 07/05/2006 | EP1677417A1 Amplifier circuit |
| 07/05/2006 | EP1677416A1 Non-linear circuit, radio communication device, and non-linear amplification method |
| 07/05/2006 | EP1677415A1 Small-sized on-chip CMOS power amplifier having improved efficiency |
| 07/05/2006 | EP1677414A1 Power amplifying apparatus using asymmetric power drive |
| 07/05/2006 | EP1677352A2 Semiconductor circuit |
| 07/05/2006 | EP1677351A2 Semiconductor circuit |
| 07/05/2006 | EP1676363A1 Transconductance circuit |
| 07/05/2006 | EP1676362A1 Electronic circuit for amplification of a bipolar signal |
| 07/05/2006 | EP1676361A2 Mmic distributed amplifier gate control using active bias |
| 07/05/2006 | EP1579570B1 Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same |
| 07/05/2006 | EP1201028B1 Transistor amplifier having reduced parasitic oscillations |
| 07/05/2006 | CN2794087Y Parameter controller |
| 07/05/2006 | CN1799193A Amplifier circuit having an impedance-controllable bias-boosting circuit |
| 07/05/2006 | CN1797996A 光接收机 Optical Receiver |
| 07/05/2006 | CN1797949A Mute circuit of audio frequency amplifier |
| 07/05/2006 | CN1797944A Differential circuit for reading out signal of integrated ISFET sensor based on two modes |
| 07/05/2006 | CN1797943A Switch simulated power amplifier |
| 07/05/2006 | CN1797942A Analog output device of digital audio system |
| 07/05/2006 | CN1797941A Pulse width modulation amplifier |
| 07/05/2006 | CN1797940A Method for raising accuracy of power output from non-linear power amplification |
| 07/05/2006 | CN1797939A Multimode amplifier circuit in low noise |
| 07/05/2006 | CN1797938A Power amplifier and formation method |
| 07/05/2006 | CN1263331C Method and appts. for amplifying input signal with DC and AC component |
| 07/05/2006 | CN1263240C Linear power amplification device for WCDMA system |
| 07/05/2006 | CN1263228C High frequency switch, high-frequency switch amplifying circuit and mobile body communication terminal |
| 07/05/2006 | CN1263216C Amplifier conversion speed reinforcing system for switch capacitor structure |
| 07/05/2006 | CN1263215C Stability enhanced multistage power amplifier |
| 07/05/2006 | CN1263214C High-frequency amplifier with dependent control of quiescent current and bias impedance |
| 07/04/2006 | US7072626 Polar modulation transmitter |
| 07/04/2006 | US7072590 Fiber optic receiver with an adjustable bandwidth post-amplifier |
| 07/04/2006 | US7072478 Microphone preamplifier |
| 07/04/2006 | US7071799 High performance switch for switched inductor tuned RF circuit |
| 07/04/2006 | US7071792 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 07/04/2006 | US7071786 Cascode circuit and integrated circuit having it |
| 07/04/2006 | US7071785 Use of a thick oxide device as a cascode for a thin oxide transcoductance device in MOSFET technology and its application to a power amplifier design |
| 07/04/2006 | US7071784 High linearity digital variable gain amplifier |
| 07/04/2006 | US7071782 HF amplifier with switchable gain |
| 07/04/2006 | US7071781 High speed, high resolution amplifier topology |
| 07/04/2006 | US7071780 Differential amplifier with a common mode voltage loop |
| 07/04/2006 | US7071779 Monolithic CMOS differential LNA with enhanced linearity |
| 07/04/2006 | US7071778 High-speed low-power dynamic current biased operational amplifier |
| 07/04/2006 | US7071777 Digital memory-based predistortion technique |
| 07/04/2006 | US7071775 Method and apparatus for an enhanced efficiency power amplifier |
| 07/04/2006 | US7071774 Composite amplifier |
| 07/04/2006 | US7071772 Differential amplifier |
| 07/04/2006 | US7071766 Constant voltage generating circuit |
| 07/04/2006 | US7071752 Amplifiers |
| 07/04/2006 | US7071624 Microwave tube system and microwave tube |
| 07/04/2006 | US7071455 Optical receiver |
| 06/29/2006 | WO2006069325A2 Integrated booster amplifier |
| 06/29/2006 | WO2006068455A1 Differential amplifier |
| 06/29/2006 | WO2005104359B1 Travelling wave amplifier |
| 06/29/2006 | US20060139736 Optical receiver |
| 06/29/2006 | US20060139101 Step-down circuit with stabilized voltage |
| 06/29/2006 | US20060139100 Amplifier and method for processing signals |
| 06/29/2006 | US20060139098 Differential amplifier |
| 06/29/2006 | US20060139097 Low voltage CMOS differential amplifier |
| 06/29/2006 | US20060139096 Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit |
| 06/29/2006 | US20060139095 Digital differential amplification control device |
| 06/29/2006 | US20060139094 Semiconductor integrated circuit for high frequency power amplifier, electronic component for high frequency power amplifier, and radio communication system |
| 06/29/2006 | US20060139093 Three-channel state-variable compressor circuit |
| 06/29/2006 | US20060139092 Load mismatch adaptation in coupler-based amplifiers |
| 06/29/2006 | US20060139091 Power amplifier employing thin film ferroelectric phase shift element |
| 06/29/2006 | US20060139085 Differential circuit and receiver with same |