Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
03/2006
03/09/2006US20060049870 Efficient generation of radio frequency currents
03/09/2006DE102004040696A1 Terminal for secure voice transmission device e.g. for buildings, elevators public squares etc, uses adjustable amplifying device
03/09/2006DE102004039830A1 Verstärkerschaltung mit einstellbarer wertdiskreter Verstärkung, Verwendung der Verstärkerschaltung und Verfahren zum Betreiben eines wertdiskret einstellbaren Verstärkers Amplifier circuit with adjustable worth discrete amplification, using the amplifier circuit and method for operating a value-discrete variable gain amplifier
03/08/2006EP1632029A1 Method and system for continuously compensating for phase variations introduced into a communication signal by automatic gain control adjustments
03/08/2006EP1632027A1 Channel selector with automatic gain control
03/08/2006EP1362429A4 Cartesian loop systems with digital processing
03/08/2006CN1745515A Method for controlling power for a mobile communications terminal
03/08/2006CN1244983C Circuit of cancelling DC offset applied to variable gain amplifier
03/07/2006US7010419 Signal processor
03/07/2006US7010371 Digital audio signal player having a simulated analogue record
03/07/2006US7010370 System and method for adjusting delay of an audio signal
03/07/2006US7010284 Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier
03/07/2006US7010282 Dynamic bias for RF power amplifiers
03/07/2006US7010276 Communications signal amplifiers having independent power control and amplitude modulation
03/07/2006US7010128 Method of processing and reproducing an audio stereo signal and an audio stereo signal reproduction system
03/07/2006US7010057 Dual mode multi-slot EGPRS transmitter
03/07/2006US7009449 Adjustable gain amplifier arrangement with relaxed manufacturing constraints
03/02/2006WO2005110044A3 Dual-band cmos front-end with two gain modes
03/02/2006WO2005104371A3 Method and circuit used to prevent or at least to reduce disturbance signals when switching off voltage supply, in particular in a household device
03/02/2006US20060047507 Device and method for noise suppression
03/02/2006US20060046666 Transmission device, transmission output control method, and radio communication device
03/02/2006US20060045290 Mechanical roller controller
03/02/2006US20060045283 Method And Related Apparatus For Generating Audio Reverberation Effect
03/02/2006US20060044065 AGC circuit
03/02/2006US20060042928 Pre-stressing uncoated piston ring, using electroplating or physical vapor deposition to produce anti-abrasion and anti-corrosion coating
03/01/2006EP1224731B1 Improved predistortion compensation for a power amplifier
03/01/2006EP1076929B1 Voice operated switch for use in high noise environments
03/01/2006CN2762440Y Signal processing device
03/01/2006CN1742514A Audio output level setting method and device
03/01/2006CN1741388A Method and apparatus for correcting central frequency of power amplifier
03/01/2006CN1741376A AGC circuit
03/01/2006CN1741375A Amplified circuit capable of dynamic regulating supply voltage
03/01/2006CN1741374A Amplifying device
03/01/2006CN1740937A Regulator circuit capable of detecting variations in voltage
02/2006
02/28/2006US7006843 Method and apparatus for regulating the power of a transmit amplifier
02/28/2006US7006645 Audio reproduction apparatus
02/28/2006US7006070 Operational amplifier circuit, driving circuit, and driving method
02/28/2006US7005923 Adaptive bias circuit for a power amplifier
02/28/2006US7005922 Variable gain amplifier circuit and gain control method thereof
02/23/2006WO2006019606A2 Auxiliary transistor gate bias control system and method
02/23/2006WO2006018808A1 Speed- and user-dependent timbre and dynamic range control method, apparatus and system for automotive audio reproduction systems
02/23/2006WO2006018784A2 High accuracy power detector for handset applications
02/23/2006US20060041926 Voice control of multimedia content
02/23/2006US20060040630 Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference
02/23/2006US20060038617 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics
02/23/2006US20060038518 Amplitude regulation circuit and method, and motor driving control apparatus and method
02/23/2006DE19742714B4 Regelverstärker Control amplifier
02/22/2006EP1628394A1 Detection circuit and detection circuit adjustment method
02/22/2006EP1628393A1 Optical control phased array antenna
02/22/2006EP1400014B1 Power amplifier (pa) with improved power regulation
02/22/2006CN1739236A Gain variable voltage/current conversion circuit and filter circuit using the same
02/22/2006CN1738196A Method and device for realizing automatic gain control
02/22/2006CN1738195A High frequency amplification circuit and mobile communication terminal using the same
02/21/2006US7003468 Method, apparatus, and program for envelope generation, audio compression, and audio expansion
02/21/2006US7003271 Direct conversion receiver having a gain-setting dependent filter parameter
02/21/2006US7003120 Method of modifying harmonic content of a complex waveform
02/21/2006US7003057 Reception AGC circuit
02/21/2006US7002638 Automatic gain control
02/21/2006US7002308 Motor driving control method and apparatus with amplitude regulation circuit
02/16/2006WO2006016309A1 Rf power sensing circuit
02/16/2006US20060034464 Sound reproduction device
02/16/2006US20060033575 Variable-gain amplifier
02/16/2006US20060033574 High linearity programmable gain amplifier using switch
02/16/2006US20060033573 Amplifying circuit
02/16/2006DE102004035609A1 Mobilfunkempfänger mit hybrider Einstellung der Verstärkung und entsprechendes Verfahren zur Einstellung der Verstärkung in einem Mobilfunkempfänger The mobile radio receiver with hybrid adjusting the gain and corresponding method for adjusting the gain in a mobile radio receiver
02/16/2006DE102004034880A1 Supply circuit for a mobile phone transistor linear amplifier operates to vary the amplification
02/16/2006DE102004034028A1 Einrichtung zur Speicherung von elektrischer Energie Means for storing electric energy
02/15/2006EP1626508A1 Transmission output control circuit, and wireless device using the same
02/15/2006EP1626498A2 Apparatus and method for controlling a digital automatic gain controller in an orthogonal frequency division multiple access communication system
02/15/2006EP0850509B2 Linearized digital automatic gain control
02/15/2006CN1736031A Apparatus, and an associated method, for increasing receiver sensitivity of a direct conversion receiver
02/15/2006CN1734933A Automatic gain control system with self-adaptive climb and decay time
02/15/2006CN1734932A Gain-changeable amplifying circuit
02/15/2006CN1242557C Radio receiver and radio receiving method
02/14/2006US6999740 Semiconductor integrated circuit and radio communication apparatus using same
02/14/2006US6999737 Wireless transmitter and device for mobile station
02/14/2006US6999735 Digital high frequency power detection circuit
02/14/2006US6999592 Time and frequency windowed pocket cardiac stethoscope
02/14/2006US6999591 Audio device characterization for accurate predictable volume control
02/14/2006US6999524 Arrangement for controlling the output power of an HF transmitter
02/14/2006US6999012 Temperature compensation device for automatic gain control loop
02/14/2006US6998919 Temperature compensated power amplifier power control
02/14/2006US6998918 Automatic current reduction biasing technique for RF amplifier
02/09/2006WO2006013893A1 Transimpedance amplifier
02/09/2006WO2006013786A1 Reception control circuit and reception control method
02/09/2006WO2006013497A1 Determining the current value of a transmission power of a radio telecommunication device
02/09/2006WO2006013019A1 Controllable power operational transconductance amplifier
02/09/2006US20060030284 Reception control circuit and reception control method
02/09/2006US20060030283 Cellular telephone
02/09/2006US20060030274 Highly accurate temperature sensor employing mixed-signal components
02/09/2006US20060029243 Dynamic acoustic rendering
02/09/2006US20060029237 Audio apparatus for vessel
02/09/2006US20060029232 Dynamic volume adjustment in a slot machine
02/09/2006US20060028280 Modulation dependent biasing for efficient and high linearity power amplifiers
02/09/2006US20060028279 Automatic gain control feedback amplifier
02/09/2006US20060028277 Power amplifier module
02/09/2006US20060028270 Adaptable voltage control for a variable gain amplifier
02/08/2006EP1624566A1 Navigation assisted speed dependent volume control
02/08/2006EP1624565A1 OFDM receiver and receiving method
02/08/2006EP1624564A1 Controllable power operational transconductance amplifier
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