Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 3 - Gain control in amplifiers or frequency changers
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
06/2003
06/10/2003US6577850 Booster for amplifying the transmission output of a handy phone
06/10/2003US6577196 Method and circuit for automatic gain control of a signal amplifier
06/10/2003US6577190 Linear gain control amplifier
06/10/2003US6577188 Variable gain amplifier
06/05/2003WO2003047119A1 Receiver for audio enhancement and method therefor
06/05/2003WO2003047098A2 Method for determining the signal strength at the input of a tuner
06/05/2003WO2003047094A1 High-frequency power amplification apparatus and power amplifier module using the same
06/05/2003WO2003036790A3 Variable gain amplifier with autobiasing supply regulation
06/05/2003US20030104795 Method and circuit for obtaining field strength information
06/05/2003US20030103577 Power control circuit and radio transmission apparatus
06/05/2003US20030102912 Methods and apparatus for facilitating negative feedback, providing loop stability, and improving amplifier efficiency
06/04/2003EP1317078A2 Power control circuit and radio transmission apparatus with synchronism detection
06/04/2003EP1317064A1 Transmitter RF power control
06/04/2003EP0704118B1 Signal amplifier system with improved echo cancellation
06/04/2003CN1422467A Use of voice-to-remaining audio (VRA) in consumer applications
06/04/2003CN1110897C Transconductance variable circuit and it variable bandwidth filter and gain amplifier
06/03/2003US6574292 Automatic gain control methods and apparatus suitable for use in OFDM receivers
06/03/2003US6574209 Radio communication device having variable communication speed
06/03/2003US6573787 Elimination of noise during power supply switching in an audio amplifier circuit
06/03/2003US6573786 Electronic devices comprising an audio amplifier and methods for controlling such electronic devices
05/2003
05/30/2003WO2003045027A1 Radio reception apparatus, signal processing timing control method, and signal processing timing control program
05/30/2003WO2003044949A2 A communication semiconductor integrated circuit device and a wireless communication system
05/30/2003WO2003044774A1 Audio-based method and apparatus for controlling operation of an appliance
05/30/2003WO2003017506A3 Device and method for offset calibration of the power control signal of radio devices
05/30/2003WO2003013190A3 Agc receiver in a wireless communication system
05/29/2003US20030100281 Distributed transmitter automatic gain control
05/29/2003US20030100279 Receiver for audio enhancement and method therefor
05/29/2003US20030099318 Method and device for acquiring an estimated value dependent on the maximum of a single-frequency signal
05/29/2003US20030099288 Method and apparatus for detecting and characterizing interference signals in wideband communications channels
05/29/2003US20030098805 Input level adjust system and method
05/28/2003EP1315292A1 Digital controlled AGC
05/28/2003EP1314245A2 Amplifier with a universal automatic gain control circuit
05/28/2003EP1068666B1 Hybrid chireix/doherty amplifiers power waveform synthesis
05/28/2003CN1421073A Envelope-tracking amplifier having improved gain, terminal device for mobile communication using same, and method for improving gain relating thereto
05/28/2003CN1420624A Crackle suppressing circuit and sound output amplifier
05/28/2003CN1110175C AGC circuit and method for digital TV receiver
05/28/2003CN1110129C Multistage variable gain amplifier circuit
05/27/2003US6571087 Radio transmitter apparatus
05/27/2003US6570443 Amplitude control of an alternating signal generated by an electronic device such as an oscillator circuit
05/27/2003CA2241278C A power sharing amplifier system for amplifying multiple input signals with shared power amplifiers
05/22/2003WO2003043187A1 Automatic gain control circuit
05/22/2003WO2003043186A2 Automatic gain control circuit with miltiple input signals
05/22/2003US20030096587 Digital controlled AGC
05/22/2003US20030095673 Audio-based method and apparatus for controlling operation of an appliance
05/21/2003EP1312162A1 Voice enhancement system
05/21/2003CN1419352A Optimization method for simultaneous amplifying multiple amplifier efficiency of carrier-modulation
05/21/2003CN1109468C Radio apparatus and method of controlling radio apparatus
05/21/2003CN1109439C Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
05/20/2003US6567653 Dual-mode communications transmitter
05/20/2003US6566944 Current modulator with dynamic amplifier impedance compensation
05/15/2003WO2003040770A2 Burst mode limiter-amplifier
05/15/2003US20030092462 Method of optimizing the efficiency of an amplifier for amplifying a plurality of modulated carriers simultaneously
05/15/2003US20030092413 Satellite radio
05/15/2003US20030092412 Automatic gain control circuit with multiple input signals
05/15/2003US20030092411 Burst mode limiter-amplifier
05/15/2003US20030092410 Front end automatic gain control circuit using a control word generator
05/15/2003US20030092405 Envelope limiting for polar modulators
05/15/2003US20030091132 AGC scheme and receiver for use in a wireless communication system
05/15/2003US20030091126 Agc window detector
05/15/2003US20030090325 Power amplifier with provisions for varying operating voltage based upon power amplifier output power
05/14/2003EP1311062A2 Method for optimising the efficiency of an amplifier for multicarrier signals
05/14/2003EP1310044A2 Automatic gain control of a closed loop fiber optic gyroscope using non-linear control laws
05/14/2003CN1108663C Digital signal processing method and apparatus
05/14/2003CN1108659C Device for controlling conversion gain of down converter
05/13/2003US6564043 Method and arrangement for linearizing a radio receiver
05/13/2003US6564041 System and method providing improved FM carrier squelch system
05/13/2003US6563891 Automatic gain control for slotted mode operation
05/13/2003US6563883 Transmitter
05/13/2003US6563385 Amplifier bias control circuit
05/13/2003US6563383 Variable gain circuit
05/13/2003US6563376 Mute circuit and digital audio amplifier circuit
05/13/2003US6563375 Amplifier having stacked current-driven current drivers
05/13/2003US6563364 Gain controller using switched capacitors
05/13/2003CA2204005C Wafer-stage temperature compensation for ic components
05/08/2003WO2003039010A1 Transmission apparatus and automatic gain control method thereof
05/08/2003WO2002031992A3 Signal strength compensation for mobile radio channels that considerably vary with time
05/08/2003US20030086683 Information processing apparatus and reproduction processing control method
05/08/2003US20030086513 Agc circuit
05/08/2003US20030085764 Variable gain amplifier with autobiasing supply regulation
05/07/2003EP1309094A1 Transmission power control circuit
05/07/2003EP1309093A2 Method and apparatus for reducing the effect of AGC switching transients
05/07/2003CN2549652Y Self gain-control linear power amplifier
05/06/2003US6560448 DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture
05/02/2003EP1305882A1 Programmable gain amplifier for use in a data network
05/02/2003EP1219024B1 Amplifier
05/02/2003EP1216503B1 Artificial ramping of transmit power for burst transmissions
05/02/2003EP1216502B1 Control loop for digital signals
05/01/2003WO2003036896A2 Multi-mode communications transmitter
05/01/2003WO2003036790A2 Variable gain amplifier with autobiasing supply regulation
05/01/2003US20030083036 Wireless transmission circuit enabling adjustable radio frequency transmission power
05/01/2003US20030083031 Method and apparatus for reducing the effect of AGC switching transients
05/01/2003US20030083030 Hardware loop for automatic gain control
05/01/2003US20030083029 Squelch circuit with adjustable reference level
05/01/2003US20030081797 Audio processing device
05/01/2003US20030080811 Variable gain amplifying apparatus and wireless communication apparatus
04/2003
04/30/2003CN1414722A Digital automatic gain control method of CDMA mobile station
04/29/2003US6556814 Memory-based amplifier load adjust system
04/24/2003WO2003034588A1 Amplifier apparatus and receiver
04/24/2003WO2002102047A3 Integrated upstream amplifier for cable modems and cable set-top boxes
04/24/2003US20030076172 Amplifier circuits and methods
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