H03G 3 - Gain control in amplifiers or frequency changers

Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
11/2004
11/04/2004	CA2522271A1 High frequency signal level detection apparatus and high-frequency signal receiver apparatus using the same
11/04/2004	CA2520208A1 Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system
11/03/2004	EP1473832A1 Radio communication terminal and radio signal receiving method
11/03/2004	EP1473831A1 Method and circuit for controlling amplification
11/03/2004	EP0867075B1 Interference detection circuit having amplitude frequency domain defined discrimination
11/03/2004	CN1543707A Device and method for maintaining the transmitting power of a radio at a constant level
11/03/2004	CN1543706A Wireless signal amplification system and a television signal decoder comprising one such system
11/03/2004	CN1543086A Radio communication terminal and radio signal receiving method
11/02/2004	US6813510 System for automatically adjusting receive path gain
11/02/2004	CA2363400C System and method for inverting automatic gain control (agc) and soft limiting
10/2004
10/28/2004	WO2004093328A2 Bidirectional distributed amplifier
10/28/2004	WO2004093314A2 System, method, and circuit for dynamic range enhancement in a communication system
10/28/2004	WO2004093313A2 Front-end sensitivity booster
10/28/2004	WO2004077690A3 Noise cancellation system in an analog fm receiver
10/28/2004	WO2004051846A3 Gain compensation over temperature and frequency variations in wireless transceivers
10/28/2004	US20040214545 Antenna amplifier and shared antenna amplifier
10/28/2004	US20040214540 Radio receiver with optimized multiple variable gain circuits
10/28/2004	US20040214537 Signal distribution system cascadable AGC device and method
10/28/2004	US20040214529 Radio communication terminal and radio signal receiving method
10/28/2004	US20040213416 Reverberation processor for interactive audio applications
10/28/2004	US20040213415 Determining reverberation time
10/28/2004	US20040213355 Gain compensation over temperature and frequency variations in wireless transceivers
10/28/2004	US20040212741 Variable gain amplification circuit
10/28/2004	US20040212436 High frequency power amplifier circuit device
10/28/2004	US20040212435 High frequency power amplifier and wireless communication module
10/28/2004	US20040212434 Electronic component for high frequency power amplifier and radio communication system
10/28/2004	US20040212432 Semiconductor integrated circuit for high frequency power amplifier, electronic component for high frequency power amplifier, and radio communication system
10/28/2004	US20040211309 Waveform adjusting system for music file
10/27/2004	EP1471767A2 Method and system for acoustic shock protection
10/27/2004	EP1471653A1 Direct conversion receiver and dc offset reducing method
10/27/2004	EP1471649A1 Antenna amplifier and shared antenna amplifier
10/27/2004	EP1471634A1 Radio receiver with optimized multiple variable gain circuits
10/27/2004	EP1471633A2 Radio receiver and radio signal processing method
10/27/2004	EP1470637A2 Edge power detector/controller
10/27/2004	EP1190490A4 Method and apparatus for obtaining optimal performance in a receiver
10/26/2004	US6809591 AGC circuit providing control of output signal amplitude and of output signal DC level
10/26/2004	CA2297716C Automatic gain control circuit and optical receiver
10/26/2004	CA2207745C Method and apparatus for increasing receiver immunity to interference
10/21/2004	WO2004091097A1 Glitch-free controllable rf power amplifier
10/21/2004	WO2003105386B1 Digital video broadcast-terrestrial (dvb-t) receiver interoperable with a gsm transmitter in a non-interfering manner
10/21/2004	WO2003077416A3 Adjustable gain control system and method thereof
10/21/2004	US20040209588 Mixer circuit with bypass and mixing modes having constant even order generation and method of operation
10/21/2004	US20040209586 System, method, and circuit for dynamic range enhancement in a communication system
10/21/2004	US20040209584 Integrated crosspoint switch with band translation
10/21/2004	US20040208652 Optical receiver
10/21/2004	US20040208262 Power amplifier circuit and method using bandlimited signal component estimates
10/21/2004	US20040208260 Method and apparatus for optimizing transmitter power efficiency
10/21/2004	US20040208157 Multi-mode communications transmitter
10/21/2004	US20040207761 Digital television receiver with automatic gain control unit and method
10/21/2004	US20040207473 Optical receiver with wide dynamic range transimpedance amplifier
10/21/2004	US20040207472 Optical receiver with wide dynamic range transimpedance amplifier
10/21/2004	US20040207471 Variable gain low noise amplifier
10/21/2004	US20040207468 Power amplification circuit and method for supplying power at a plurality of desired power output levels
10/21/2004	US20040207467 Power amplifier module for wireless communication devices
10/21/2004	US20040207447 Configurable feedback path in an amplitude control system
10/21/2004	DE10358559A1 Portable terminal e.g. personal digital assistant converts resistance of external accessory plugged into multipurpose ear jack into analog-to-digital conversion value, and compares it with prestored conversion values
10/21/2004	DE10316814A1 Radio particularly for road vehicles has two tuners operating with correction values in memory to provide uniform sound volume output
10/20/2004	EP1469596A2 Method for controlling power gain
10/20/2004	EP1469595A2 Negative feedback amplifier
10/20/2004	CN1539200A Circuit apparatus and method for adjusting operating point of power amplifier
10/20/2004	CN1538618A Amplifier device and emission device with the device
10/20/2004	CN1538412A Front photoelectric detector, optical pick-up, and optical recording and/or playing equipment
10/20/2004	CN1172456C Receiving automatic gain controlling circuit
10/20/2004	CN1172433C Automatic gain control method and circuit and receiving apparatus using the same cirucit
10/20/2004	CN1172432C Amplifier load regulating system based on memory
10/19/2004	US6807406 Variable gain mixer circuit
10/19/2004	US6807403 Radio telephone apparatus
10/19/2004	US6806771 Multimode output stage converting differential to single-ended signals using current-mode input signals
10/19/2004	US6805633 Gaming machine with automatic sound level adjustment and method therefor
10/15/2004	CA2425700A1 Utilizing vacuum tubes in computer audio circuitry
10/14/2004	US20040204162 Preventing power-on audio output noise in a wireless telephone handset
10/14/2004	US20040203983 Method and apparatus for controlling transmission power associated with a transmitting unit
10/14/2004	US20040203982 Controlling output power in cellular telephones
10/14/2004	US20040203553 Communication semiconductor integrated circuit device and wireless communication system
10/14/2004	US20040203551 Noise blanker using an adaptive all-pole predictor and method therefor
10/14/2004	US20040203403 System and method for selectively utilizing an attenuation device in a two-way radio receiver based on squelch detect and radio signal strength indication (RSSI)
10/14/2004	US20040202337 Device for automatically controlling audio volume based on vehicle speed and method for operating the same
10/14/2004	US20040202311 Bidirectional distributed amplifier
10/14/2004	US20040202102 Automatic gain control device and method in orthogonal frequency division multiplexing system with DC offset compensation function, and recording medium storing program containing the method
10/13/2004	EP1467481A1 Glitch-free controllable RF power amplifier
10/13/2004	EP1466406A2 Direct conversion of low power high linearity receiver
10/13/2004	EP1446873A4 Method and system for multiple tuner application using a low noise broadband distribution amplifier
10/13/2004	CN1536770A Direct conversion receiver with DC offset compensation function and its compensation method
10/13/2004	CN1536761A 调谐器 Tuner
10/13/2004	CN1171485C Control of power amplifier carried out by delay waveform for communicatiom system
10/12/2004	US6804694 Adaptive equalizer with gain controlled initialization
10/12/2004	US6804501 Receiver having gain control and narrowband interference detection
10/12/2004	US6803822 Power amplifier having a bias current control circuit
10/12/2004	US6803818 Method and apparatus for improved output power level control in an amplifier circuit
10/12/2004	US6803798 Output control apparatus of pulse width modulator
10/12/2004	US6803496 Method for maintaining or improving skin health
10/07/2004	WO2004086651A1 Power saving in a transmitter
10/07/2004	WO2004086638A2 Method for calibration of a signal receiver
10/07/2004	WO2004086616A2 Clip detection in pwm amplifier
10/07/2004	WO2004086615A1 Volume control device for digital signals
10/07/2004	WO2004086362A1 Speech signal compression device, speech signal compression method, and program
10/07/2004	WO2004086358A1 Compensating for ambient noise levels in text-to-speech applications
10/07/2004	WO2004075469A3 Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver
10/07/2004	WO2004057820A3 Decision feedback equalizer
10/07/2004	WO2004045226A3 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics

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