| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 03/31/2004 | EP1402630A1 Method and device for automatic gain control |
| 03/31/2004 | EP1261148B1 Method for repeating isofrequency signals and isofrequency signal repeater |
| 03/31/2004 | CN1485981A Variable gain amplifier for use in communications |
| 03/31/2004 | CN1144356C Automatic microwave gain control device |
| 03/30/2004 | US6714080 Low voltage input current mirror circuit and method |
| 03/30/2004 | US6714074 Power amplifier clipping circuit for minimizing output distortion |
| 03/30/2004 | US6714071 Gate modulation for high power amplifiers |
| 03/25/2004 | WO2004025830A1 Circuit and method for eliminating pop noise in digital audio amplifier using dual power supply |
| 03/25/2004 | WO2004025829A1 A stereophonic apparatus having multiple switching function and an apparatus for controlling sound signal |
| 03/25/2004 | WO2004012422A3 Voice controlled system and method |
| 03/25/2004 | WO2003049299A3 Transmitter rf power control |
| 03/25/2004 | US20040060026 Thermal protection system for an output stage of an amplifier |
| 03/25/2004 | US20040059571 System for inputting speech, radio receiver and communication system |
| 03/25/2004 | US20040057586 Voice enhancement system |
| 03/25/2004 | US20040056720 RF peak-to-peak detector with wide dynamic range |
| 03/25/2004 | US20040056719 Method and apparatus for protecting devices in an RF power amplifier |
| 03/25/2004 | DE4132957B4 Stummschaltung Mute |
| 03/24/2004 | EP1401238A1 Sound reproducing system |
| 03/24/2004 | EP1401134A1 AUTOMATIC GAIN CONTROL CIRCUIT AND METHOD THEREOF, AND DEMODULATION APPARATUS USING THE SAME |
| 03/24/2004 | EP1401098A1 Method and system for power control in radio transceivers and transmitters |
| 03/24/2004 | EP1401096A2 Thermal protection system for an output stage of an amplifier |
| 03/24/2004 | EP1400033A2 System and method for power control calibration in a wireless communication device |
| 03/24/2004 | EP1400014A1 Power amplifier (pa) with improved power regulation |
| 03/24/2004 | EP1400013A2 Method and apparatus for a transceiver having a constant power output |
| 03/24/2004 | EP1082810A4 A gain control circuit and method for providing gain control of a variable amplifier using a pilot signal |
| 03/24/2004 | CN1484377A Sound volume contvol equipment and method |
| 03/24/2004 | CN1143568C Transmitter and method for controlling gain of transmitted signal |
| 03/24/2004 | CN1143442C Transmission control device and transmission power control method |
| 03/23/2004 | US6711392 Balanced power amplifier for low power radio communications |
| 03/23/2004 | US6711391 Gain linearizer for variable gain amplifiers |
| 03/23/2004 | US6711389 Power controller for a mobile terminal |
| 03/23/2004 | US6711388 Distributed power level control system of transmitter for cellular communication |
| 03/23/2004 | US6710725 Acoustic noise suppressing circuit by selective enablement of an interpolator |
| 03/23/2004 | US6710651 Systems and methods for controlling output power in a communication device |
| 03/23/2004 | US6710647 Method and circuit for distortion compensation and output control |
| 03/18/2004 | WO2004023649A1 Electronic component for amplifying high frequency power and radio communication system |
| 03/18/2004 | WO2004023631A2 Power supply based audio compression for digital audio amplifier |
| 03/18/2004 | WO2003040770A3 Burst mode limiter-amplifier |
| 03/18/2004 | US20040054707 Multiplication coefficient supplement device, multiplication coefficient supplement method, and multiplication factor supplement program |
| 03/18/2004 | US20040053635 System for controlling transmitting power of antenna |
| 03/18/2004 | US20040053586 Combined discrete automatic gain control (AGC) and DC estimation |
| 03/18/2004 | US20040053585 Receiver with agc controlled resonance amplifier |
| 03/18/2004 | US20040052385 Volume control apparatus and method thereof |
| 03/18/2004 | US20040052320 Point-to-multipoint burst modem automatic gain control |
| 03/18/2004 | US20040052101 Device for amplitude adjustment and rectification made with MOS technology |
| 03/18/2004 | US20040051587 Amplifying circuit with variable load drivability |
| 03/18/2004 | DE10334390A1 Configurable back coupling path for an amplitude control system for producing test signals compares signal with reference signal |
| 03/17/2004 | EP1398886A2 Dynamic bias for rf power amplifiers |
| 03/17/2004 | EP1398875A1 System for controlling the transmitting power of a multiband antenna |
| 03/17/2004 | EP1398874A1 Method and system for power control in radio transceivers |
| 03/17/2004 | CN1483269A System and method for detecting and correcting phase error between differential signals |
| 03/17/2004 | CN1483268A Quadrature oscillator with feedback phase mismatch correction |
| 03/17/2004 | CN1483245A A radio receiver |
| 03/17/2004 | CN1482736A Gain amplifier circuit that minimizes the miller effect |
| 03/17/2004 | CN1142634C Gain-variable amplifier for transmitting end |
| 03/16/2004 | US6708093 Vehicle audio interface adapter |
| 03/16/2004 | US6708025 Automatic gain control method and apparatus, and radio communications apparatus having automatic gain control function |
| 03/16/2004 | US6707865 Digital voltage gain amplifier for zero IF architecture |
| 03/16/2004 | CA2214124C Out-of-band compensation for non-linear device |
| 03/11/2004 | WO2004021564A1 Receiver and automatic gain control method thereof |
| 03/11/2004 | WO2003063383A3 Edge power detector/controller |
| 03/11/2004 | US20040048592 Automatic gain control circuit controlling gain of receiver including two automatic gain control amplifiers |
| 03/11/2004 | US20040047317 Amplitude limiting circuit and CDMA communication apparatus |
| 03/11/2004 | US20040046608 Variable gain amplifier with a gain exhibiting a linear in dB characteristic relative to a control voltage |
| 03/10/2004 | CN1481613A 平滑电路 Smoothing circuit |
| 03/10/2004 | CN1481610A Signal level control |
| 03/09/2004 | US6704704 System and method for tracking and automatically adjusting gain |
| 03/09/2004 | US6703899 Quad switched gain circuit |
| 03/04/2004 | WO2004019498A1 Convolutional decoder and method for decoding demodulated values |
| 03/04/2004 | WO2004019489A1 Gain control method, gain controller, receiver having the gain controller, and mobile telephone |
| 03/04/2004 | WO2004019488A2 Methods of receiving communications signals including a plurality of digital filters having different bandwidths and related receivers |
| 03/04/2004 | WO2004019486A1 A power amplifier system |
| 03/04/2004 | WO2004019485A1 Power feedback apparatus |
| 03/04/2004 | WO2002103924A3 Power control for non-constant envelope modulation |
| 03/04/2004 | US20040043733 Enhanced automatic gain control |
| 03/04/2004 | US20040043729 Am receiver with audio filtering means |
| 03/04/2004 | US20040042624 Method and apparatus for improving automotive audio system performance |
| 03/04/2004 | US20040041945 Apparatus and method for optimizing the level of rf signals |
| 03/04/2004 | US20040041720 Closed-loop control of an analog system providing an output signal with a control signal |
| 03/04/2004 | US20040041418 Deployable rigid system for crash energy management |
| 03/03/2004 | EP1394939A1 Closed-loop control of an analog system producing an output signal from a control signal |
| 03/03/2004 | EP1394938A1 Circuit and method for switching gains of preamplifier |
| 03/03/2004 | EP1394937A2 Switching circuit |
| 03/03/2004 | EP1394936A2 Enhanced automatic gain control |
| 03/03/2004 | EP1393456A1 Dynamic range extension for an electronic circuit |
| 03/03/2004 | EP0941575B1 Efficient parallel-stage power amplifier |
| 03/03/2004 | CN1140963C Digital automatic gain control |
| 03/02/2004 | US6701163 Base station apparatus and method for suppressing peak electric power |
| 03/02/2004 | US6701138 Power amplifier control |
| 02/26/2004 | WO2003104925A3 Method and system for all digital gain control |
| 02/26/2004 | WO2003056739A3 Transmission configuration for continuous-time data transmission |
| 02/26/2004 | WO2003032519A3 Single output stage power amplification for multimode applications |
| 02/26/2004 | US20040038701 Power allocation of wireless transmission apparatus |
| 02/26/2004 | US20040038656 Method and apparatus for distortion reduction and optimizing current consumption via adjusting amplifier linearity |
| 02/26/2004 | US20040038650 Apparatus and method for signal strength compensation of highly-time-variant mobile radio channels and reception unit for mobile radio transmission |
| 02/26/2004 | US20040037378 Automatic gain control circuit and method thereof and demodulation apparatus using the same |
| 02/26/2004 | US20040037232 Method of adjustment for receiver of signals transmitted in bursts and corresponding receivers |
| 02/26/2004 | US20040036772 Method for optimizing the level of rf signals by comparing quality of the rf signals under different operation modes |
| 02/26/2004 | US20040036637 Methods of receiving communications signals including a plurality of digital filters having different bandwidths and related receivers |
| 02/26/2004 | DE20215605U1 System for sound introduction to inside of car, using at least one inside installed loudspeaker, picks-up audio signal dependent on speed or noise of car engine and applies it to amplifier control |