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)
07/2003
07/23/2003EP1330044A2 A direct conversion RF transceiver with automatic frequency control
07/23/2003EP1330043A2 A direct conversion RF transceiver with automatic transmit power control
07/23/2003EP1330024A2 AGC circuit for an FM receiver
07/23/2003EP1330023A2 Direct conversion receiver architecture
07/23/2003EP1329020A2 Amplifier having stacked current-driven current drivers
07/23/2003CN1115920C Mobile radio communication equipment
07/23/2003CN1115911C Mobile station having drift-free pulsed power detection method and appts.
07/23/2003CN1115778C Mute control circuit
07/23/2003CN1115775C Method and device for automatic setting of gain in control loops
07/23/2003CN1115774C Method and appts. for automatic gain control in digital receiver
07/23/2003CN1115773C Multiple preamplifier circuit for TV tuner
07/22/2003US6597925 Transmitter circuit with frequency self-optimization
07/22/2003US6597898 Automatic gain control method and device
07/22/2003US6597897 Low power radio frequency transmitter with controllable gain
07/22/2003US6597245 Preamplifier
07/22/2003US6597238 Demodulating circuit of wireless receiving apparatus and demodulating method
07/17/2003DE20305480U1 Device for automatic volume adaptation of automobile radio to external noise has control amplifier with limited noise signal as control signal that sets radio or multimedia system volume
07/16/2003EP1327313A1 Selectively activated agc signal measurement unit
07/16/2003EP1327308A2 System for closed loop power control using a linear or a non-linear power amplifier
07/16/2003EP1327301A2 Amplification circuit with improved linearity
07/16/2003CN1430809A 高频放大器 High-frequency amplifier
07/16/2003CN1430413A Automatic gain controller and method for outputing gain control signal
07/16/2003CN1430335A Radio receiver and radio receiving method
07/16/2003CN1115067C Method for counting electric power control code value according temp. compensation in radio communication terminal
07/16/2003CN1115032C Receiver with controllable amplifier means
07/15/2003US6594363 Audio apparatus for reducing white noise and control method of the same
07/10/2003WO2003056739A2 Transmission configuration for continuous-time data transmission
07/10/2003US20030129946 Process for controlling the gain of a frequency tuner, and corresponding tuner, in particular for the reception of terrestrial digital television signals
07/10/2003US20030128852 Polarity-independent transmission system
07/10/2003US20030128303 Digital/analog common tuner
07/09/2003EP1326330A1 RF output power control for mobile phones
07/09/2003EP1325555A1 Configurable power amplifier and bias control
07/09/2003EP1252710B1 Method and circuit arrangement for controlling the output power of a power amplifier
07/09/2003CN1429446A Gain controller for quadrature tranceiver
07/09/2003CN1429436A Dynamic bias for RF power amplifiers
07/09/2003CN1114266C Receiving circuit of cellular telephone set
07/08/2003US6591092 Signal receiving apparatus with a gain controller and method thereof
07/08/2003US6591089 Mobile station with transmission power control system
07/08/2003US6590942 Least squares phase fit as frequency estimate
07/08/2003US6590437 Logarithmic amplifier
07/03/2003WO2003055062A1 Automatic gain control for a tuner
07/03/2003WO2003055059A1 Attenuation control for digital power converters
07/03/2003US20030125000 Speed-up mode implementation for direct conversion receiver
07/03/2003US20030123680 Volume control system and method of volume control for portable computer
07/03/2003US20030123581 Automatic gain controller outputting control value varying nonlinearly, and a method of outputting a gain control signal thereof
07/03/2003US20030123480 Digital communication system
07/03/2003US20030123168 Optical receiving device
07/03/2003US20030122623 Gain control circuit for controlling a gain in a variable gain cell
07/03/2003US20030122620 Extended range variable gain amplifier
07/03/2003US20030122560 Method and apparatus for tuning an input signal
07/02/2003EP1324504A2 Radio receiver and radio receiving method
07/02/2003EP1324486A1 Method and circuit for distortion compensation and output control
07/02/2003EP1324001A1 Tuning an input signal ( magnetostrictive displacement transducer ) with variable gain and a single reference
07/02/2003CN1113567C Mobile wireless communication device
07/02/2003CN1113458C Control of variable gain amplifier with delta-sigma modulator D/A converter
07/01/2003US6587511 Radio frequency transmitter and methods thereof
07/01/2003US6587452 High performance signal structure with multiple modulation formats
07/01/2003US6587004 Signal amplifier and optical signal receiver using the same
07/01/2003US6586996 Method and system for producing a drive signal for a current steering amplifier
06/2003
06/26/2003US20030119464 Radio receiver and radio receiving method
06/26/2003US20030119463 Apparatus and method for maintaining linearity of an RF receiver in a mobile communication system
06/26/2003US20030117698 Gain compensation for optocoupler feedback circuit
06/26/2003US20030117218 Amplifier circuit and method
06/25/2003EP1322036A1 Arrangement with a symmetrical amplifier
06/25/2003EP1062727B1 Gain control amplifier, variable gain amplifier and automatic gain control amplifier
06/25/2003CN1426167A Control device and control method for transmission output of sudden transmitter
06/25/2003CN1112793C Data comparison AGC system for VSB receiver
06/24/2003US6584303 Method and apparatus for automatically identifying a function module in a modular transceiver system
06/24/2003US6584204 Loudspeaker system with feedback control for improved bandwidth and distortion reduction
06/24/2003US6584201 Remote automatic volume control apparatus
06/24/2003US6583671 Stable AGC transimpedance amplifier with expanded dynamic range
06/19/2003US20030114124 Transmission output power control device for use in a burst transmitter and control method
06/19/2003US20030112644 Voltage multiplier circuit
06/19/2003US20030112088 Compander architecture and methods
06/19/2003US20030112072 Exponential function generator embodied by using a CMOS process and variable gain amplifier employing the same
06/19/2003US20030112058 Squelch circuit to create a squelch waveform for USB 2.0
06/19/2003US20030111997 Active coupler
06/18/2003EP1320191A2 Transmission output power control device for use in a burst transmitter and control method
06/18/2003CN1112032C High speed channel detection, storage and switch device and its method
06/18/2003CN1111984C Noise suppressing device
06/18/2003CN1111975C Device and method for radio transmitters
06/18/2003CN1111966C Method or reducing clicks in data transmission system
06/18/2003CN1111954C Output-controlled power amplifier, radio communication terminal and radio communication base station
06/18/2003CN1111944C Method and appts. for converting wide band i-f signal to complex (quadrature) baseband signal
06/17/2003US6580905 System and method for controlling the level of signals output to transmission media in a distributed antenna network
06/17/2003US6580901 Burst-type transmission output power control apparatus capable of reducing phase errors
06/17/2003US6580553 Automatic gain control device of optical fiber amplifier
06/17/2003US6580318 Method and apparatus for protecting radio frequency power amplifiers
06/12/2003WO2003049299A2 Transmitter rf power control
06/12/2003US20030108131 Gain control method for a receiver of signals transmitted in bursts and receiver exploiting it
06/12/2003US20030108129 Automatic gain control for digital signals
06/12/2003US20030107440 Power supply system for a high frequency power amplifier
06/12/2003US20030107438 Variable gain amplifier circuit
06/12/2003US20030107433 High frequency power amplifier and wireless communication module
06/11/2003EP1318623A2 Method for obtaining field strength information
06/11/2003EP1317802A2 Self-tuned millimeter wave rf transceiver module
06/11/2003CN1423859A Digital-to-analog interface circuit having adjustable time response
06/11/2003CN1111339C Radio receiver and received power amplifying method
06/10/2003US6577852 Automatic gain control device and method, and radio communication apparatus having the automatic gain control function
06/10/2003US6577851 Impulse noise blanker
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