| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/26/2007 | WO2007083271A1 Amplifier circuit |
| 07/26/2007 | WO2007083191A1 Multiple-input and multiple-output amplifier |
| 07/26/2007 | WO2007019509A3 Feedback network for high gain amplification with enhanced bandwidth and gain control |
| 07/26/2007 | US20070173213 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 07/26/2007 | US20070170991 Variable gain circuit |
| 07/26/2007 | US20070170990 Amplifier circuit with output delay selectively changed according to common mode voltage level, associated replica delay circuit and internal clock generator |
| 07/26/2007 | US20070170989 Analog amplitude detector |
| 07/26/2007 | US20070170988 Automatic power output control circuit |
| 07/26/2007 | US20070170987 Differential-to-single-ended converter and phase-locked loop circuit having the same |
| 07/26/2007 | US20070170985 Contactless ic card system |
| 07/26/2007 | US20070170984 Systems and Methods for Improving Performance in a Digital Amplifier by Adding an Ultrasonic Signal to an Input Audio Signal |
| 07/26/2007 | US20070170983 Multi-channel digital amplifier, signal processing method thereof, and audio reproducing system having the same |
| 07/26/2007 | US20070170956 Sense amplifier |
| 07/26/2007 | US20070170946 Pilot signal detection circuit and semiconductor integrated circuit equipping the circuit |
| 07/25/2007 | EP1811659A1 Amplitude variable driver circuit and testing apparatus |
| 07/25/2007 | EP1811657A2 Nested transimpedance amplifier |
| 07/25/2007 | EP1811656A2 Nested transimpedance amplifier |
| 07/25/2007 | EP1811655A1 A power amplifier distortion compensation apparatus and method thereof |
| 07/25/2007 | EP1811653A1 Amplifier input switch configuration with improved PSRR |
| 07/25/2007 | EP1811652A2 Nested transimpedance amplifier |
| 07/25/2007 | CN2926623Y Electrohydraulic servo-amplifier |
| 07/25/2007 | CN1328849C Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method |
| 07/25/2007 | CN101005672A Power amplifier based on PHS communication terminal |
| 07/25/2007 | CN101005282A Differential-to-single-ended converter and phase-locked loop circuit having the same |
| 07/25/2007 | CN101005273A Differential amplifier with improved conversion speed |
| 07/25/2007 | CN101005272A Multi-channel digital amplifier, signal processing method thereof, and audio reproducing system having the same |
| 07/25/2007 | CN101005271A Nested transimpedance amplifier |
| 07/25/2007 | CN101005270A Nested transimpedance amplifier |
| 07/25/2007 | CN101005269A Nested transimpedance amplifier |
| 07/25/2007 | CN101005268A Class D amplifier with start-up click noise elemination |
| 07/25/2007 | CN101005237A Current sense amplifier for voltage converter |
| 07/24/2007 | US7248846 Feedforward amplifier and radio communication apparatus with the amplifier |
| 07/24/2007 | US7248656 Digital convertible radio SNR optimization |
| 07/24/2007 | US7248653 Low power and high linearity receivers with reactively biased front ends |
| 07/24/2007 | US7248644 Circuit and method for compensating for nonliner distortion of power amplifier |
| 07/24/2007 | US7248643 Distortion compensator |
| 07/24/2007 | US7248120 Stacked transistor method and apparatus |
| 07/24/2007 | US7248119 Broadband amplifier with improved noise figure and distortion characteristics |
| 07/24/2007 | US7248118 Radio frequency power amplifier module |
| 07/24/2007 | US7248117 Frequency compensation architecture for stable high frequency operation |
| 07/24/2007 | US7248116 Differential amplifiers |
| 07/24/2007 | US7248115 Differential amplifier operable in wide range |
| 07/24/2007 | US7248114 Contactless IC card system |
| 07/24/2007 | US7248110 Modified doherty amplifier |
| 07/24/2007 | US7248109 Method and apparatus for an improved power amplifier |
| 07/24/2007 | US7248108 Power amplifier employing thin film ferroelectric phase shift element |
| 07/24/2007 | US7248106 Sampling signal amplifier |
| 07/24/2007 | US7248104 Operational amplifier |
| 07/24/2007 | US7248089 Method of establishing a PWM-modulated output signal representation |
| 07/24/2007 | US7247830 Output amplifier for solid-state imaging device |
| 07/19/2007 | WO2007080715A1 Digital reception device |
| 07/19/2007 | WO2007080528A1 Single-ended amplifier |
| 07/19/2007 | WO2007044595A3 Distributed amplifier with built-in filtering functions |
| 07/19/2007 | WO2007024281A3 Magnetic field tolerant amplifier and wireless transceiver using the same |
| 07/19/2007 | WO2006125063A3 Increasing the linearity of a transconductance cell |
| 07/19/2007 | US20070165764 Phase conjugate circuit |
| 07/19/2007 | US20070164825 Reduced-size sensor circuit |
| 07/19/2007 | US20070164824 Amplifier |
| 07/19/2007 | US20070164821 Load-invariant amplifier |
| 07/19/2007 | US20070164819 Amplifier |
| 07/19/2007 | US20070164818 High efficiency amplifier |
| 07/19/2007 | US20070164815 Power amplifier circuit reducing electromagnetic interference |
| 07/19/2007 | US20070164814 Digital amplifier |
| 07/19/2007 | US20070164316 Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same |
| 07/19/2007 | US20070164198 Optical communication device |
| 07/19/2007 | US20070164197 Linear distributed pixel amplifier |
| 07/18/2007 | EP1808960A2 Reduced-size sensor circuit |
| 07/18/2007 | EP1807930A2 A signal-enhancement system for photodetector outputs |
| 07/18/2007 | EP1735907A4 Highly linear variable gain amplifier |
| 07/18/2007 | EP1728320A4 Method and apparatus for doherty amplifier biasing |
| 07/18/2007 | EP1262020A4 High sheet mos resistor method and apparatus |
| 07/18/2007 | CN2922793Y Scale-type changer with amplifying circuit device |
| 07/18/2007 | CN1327529C Improved heat dissipation in an amplifier circuit by interleaved configuration of two power transistors |
| 07/18/2007 | CN1327523C Power amplifier with base stripe and collector stripe |
| 07/18/2007 | CN101002394A A radio transmitter and a method of operating a radio transmitter |
| 07/18/2007 | CN101002382A Current-mode instrumentation amplifier |
| 07/18/2007 | CN101002381A 接收方法以及接收电路 Receiving method and a receiving circuit |
| 07/18/2007 | CN101002380A Dual mode audio amplifier |
| 07/18/2007 | CN101002379A Auxiliary transistor gate bias control system and method |
| 07/18/2007 | CN101001080A Programme-controlled gain charge amplifier based on computer system bus |
| 07/18/2007 | CN101001079A Transimpedance amplifier with negative impedance compensation function |
| 07/18/2007 | CN101001078A Low voltage negative feedback transconductance amplifier |
| 07/18/2007 | CN101001077A Timing adjusting method and timing adjusting apparatus |
| 07/17/2007 | US7245189 High linearity digital variable gain amplifier |
| 07/17/2007 | US7245188 Light receiving amplification circuit |
| 07/17/2007 | US7245187 Multi-standard amplifier |
| 07/17/2007 | US7245186 Bandpass amplifier |
| 07/17/2007 | US7245185 Controlling a power converter |
| 07/17/2007 | US7245184 High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof |
| 07/17/2007 | US7245183 Apparatus, methods and articles of manufacture for processing an electromagnetic wave |
| 07/17/2007 | US7245182 High frequency amplifier circuit |
| 07/17/2007 | US7245181 Linear amplifier |
| 07/17/2007 | US7245169 Offset correcting method, offset correcting circuit, and electronic volume |
| 07/17/2007 | US7245164 Radio frequency doubler |
| 07/17/2007 | US7243706 Heatsink for power devices |
| 07/12/2007 | WO2007078519A2 Fully differential amplifier with continuous-time offset reduction |
| 07/12/2007 | WO2007078217A1 Efficient composite amplifier |
| 07/12/2007 | WO2007077409A1 An active load pull amplifier |
| 07/12/2007 | US20070159266 Arrangement and method impedance matching |
| 07/12/2007 | US20070159258 Radiofrequency (rf) and/or microwave power amplification device and corresponding radiocommunication terminal |