Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
03/2005
03/17/2005DE102004036484A1 Gleichspannungskompensation mit geringer Latenzzeit DC compensation, low latency
03/16/2005EP1515447A1 Method for noise suppression in a signal processing system and signal processing system
03/16/2005EP1515428A1 Automatic gain control method for radio communication mobile station
03/16/2005CN1596539A Method for determining the signal strength at the input of a tuner
03/16/2005CN1596505A Transmitter RF power control
03/16/2005CN1595920A Squelch detecting circuit
03/16/2005CN1595817A Method for noise suppression in a signal processing system and signal processing system
03/16/2005CN1193508C Automatic gain control of receiver and its method
03/15/2005US6868279 Power characteristic of a radio transmitter
03/15/2005US6868260 Radio station with optimized impedance
03/15/2005US6867941 Circuit and method for controlling the gain of an amplifier based on the sum of samples of the amplified signal
03/15/2005US6867650 Variable gain amplifier circuit
03/15/2005CA2159976C Method and apparatus for leveling audio output
03/10/2005WO2002099985A8 Dynamic range extension for an electronic circuit
03/10/2005US20050054382 Methods and devices for controlling RF, multi-carrier amplifier signal power
03/10/2005US20050054314 Attenuation control for tuners
03/10/2005US20050054311 Squelch detecting circuit
03/10/2005US20050054308 Dual Mode multi-slot egprs transmitter
03/10/2005US20050053175 Automatic gain control method for radio communication mobile station
03/10/2005US20050052230 Low distortion variable gain and rooting amplifier with solid state relay
03/10/2005DE10197072T5 Phasenfehlererfassung und Korrektur für Symmetrische Signale Phase error detection and correction for Balanced signals
03/09/2005EP1513268A2 Method and apparatus for increasing receiver immunity to interference
03/09/2005EP1512237A2 Method and system for all digital gain control
03/09/2005EP1512230A2 Digital video broadcast-terrestrial (dvb-t) receiver interoperable with a gsm transmitter in a non-interfering manner
03/09/2005EP1512221A1 Power amplifying system with supply and bias enhancements
03/09/2005CN1593014A Device and method for offset calibration of the power control signal of radio devices
03/09/2005CN1592123A AM receiver circuit
03/09/2005CN1592121A Power ramping controller and an associated power ramping method for transmitter
03/09/2005CN1592094A Automatic gain control method for radio communication mobile station
03/09/2005CN1592092A Audio signal amplifier and audio apparatus having the same
03/09/2005CN1192495C Radio terminal device
03/08/2005US6865379 Automatic radio button mute
03/08/2005US6864746 Dual gain amplification low noise amplifier
03/08/2005US6864744 Amplifier circuit
03/08/2005US6864724 Current to voltage conversion circuit for photo detector integrated circuit employing gain switching circuit
03/08/2005US6864680 Method and apparatus for tuning an input signal
03/03/2005US20050048938 System and method for power control calibration and a wireless communication device
03/03/2005US20050048935 Communications signal amplifiers having independent power control and amplitude modulation
03/03/2005US20050047615 Audio signal amplifier and audio apparatus having the same
03/03/2005US20050047533 Receiver with automatic gain control that operates with multiple protocols and method thereof
03/03/2005US20050047499 System and method for measuring the response time of a differential signal pair squelch detection circuit
03/03/2005US20050046482 Receiver circuit
03/02/2005EP1393456A4 Dynamic range extension for an electronic circuit
03/02/2005CN1589465A Audio-based method and apparatus for controlling operation of an electric appliance
03/02/2005CN1191688C Amplfication control method and equipment for mobile terminal emitting signal
03/02/2005CN1191676C Control circuit for power ampifier using heterojunction double-electrode transistor
03/02/2005CN1191675C Pre-amplifier cirucit
03/01/2005US6862438 Programmable gain amplifier (PGA) with AGC in receiver section
03/01/2005US6862327 AGC circuit
03/01/2005US6862322 Switchable-bandwidth optical receiver
02/2005
02/24/2005WO2005018280A1 Acoustic aid
02/24/2005WO2005018106A2 Radio transmitter with accurate power control
02/24/2005WO2004081957A3 Single tone detection and adaptive gain control for direct conversion receivers
02/24/2005US20050043831 System and method for implementing a flat audio volume control model
02/24/2005US20050041814 Method and related apparatus for stereo vocal cancellation
02/24/2005US20050040890 Automatic gain control device
02/24/2005US20050040888 Apparatus and method for controlling adaptive circuits
02/24/2005DE10317936B4 Verstärkeranordnung und Sendeanordnung mit der Verstärkeranordnung Amplifier arrangement and transmission arrangement with the amplifier arrangement
02/24/2005DE10060332B4 Verfahren und Vorrichtung zur Millimeterwellen-Leistungsregelung bei einem V-Band-TR-Modul Method and device for millimeter wave power control with a V-band TR module
02/23/2005EP1508967A1 A power amplifier module and a mobile terminal
02/23/2005EP1508852A2 System and method for implementing a flat audio volume control model
02/23/2005EP0920766B1 Receiver with controllable amplifier means
02/23/2005EP0782803B1 Method for demodulating digitally modulated data signals
02/23/2005CN1585263A High frequency variable gain amplification device, control device, frequency-conversion device, and communication device
02/23/2005CN1190956C HF signal switching circuit for suppressing HF signal distortion
02/23/2005CN1190904C Directly converting receiver
02/22/2005US6859646 Signal gain adjustment within an RF integrated circuit
02/22/2005US6859505 Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication
02/22/2005US6859504 Rapid settling automatic gain control with minimal signal distortion
02/22/2005US6859105 Variable gain control circuit and integrated circuit device having the same
02/22/2005US6859102 Amplifier circuit and method
02/17/2005WO2005015757A1 Transmission device, transmission power control method, and radio communication device
02/17/2005WO2005002042A3 Integrated power amplifier circuit
02/16/2005CN1582530A 自动增益控制电路 Automatic gain control circuit
02/16/2005CN1581724A Automatic gain controller and its control method
02/16/2005CN1581707A Automatic gain control circuit and method for controlling the starting time of oscillator
02/16/2005CN1581684A Agc电路 Agc circuit
02/16/2005CN1581683A Automatic gain controlling circuit and method of receiver for mobile object
02/16/2005CN1190049C Communication system and method, radio communication system, radio microphone and receiver
02/16/2005CN1190013C Radio receiver, radio receiving method and recording medium
02/10/2005WO2005013480A1 Circuit for varying gain of preamplifier
02/10/2005WO2005013029A1 A control circuit for diode based rf circuits
02/10/2005WO2005012927A1 Dual signal rf power level detector
02/10/2005US20050032499 Radio frequency power detecting circuit and method therefor
02/10/2005US20050032496 Automatic gain control circuit for receive apparatus for mobile object
02/10/2005US20050032495 Automatic gain control for a tuner
02/10/2005US20050032489 Transmission arrangement for transmitting data continuously in the time domain
02/10/2005US20050032487 Radio transmitter with accurate power control
02/10/2005US20050031142 Method and apparatus for volume control
02/10/2005US20050031141 Timer ramp-up circuit and method for a sound masking system
02/10/2005US20050031058 Method and apparatus for automatic gain control of a wireless receiver
02/10/2005US20050031057 Method for automatic gain control, for instance in a telecommunication system, device and computer program product therefor
02/10/2005US20050030101 Temperature-compensated power sensing circuit for power amplifiers
02/10/2005US20050030100 Method and apparatus for controlling the output power of a power amplifier
02/10/2005US20050030099 AGC circuit
02/10/2005US20050030096 Balanced variable gain amplifier capable of achieving performance by low source voltage
02/10/2005US20050030081 Offset correcting method, offset correcting circuit, and electronic volume
02/10/2005US20050029994 Pulse-width modulation circuit and switching amplifier using the same
02/10/2005DE102004033547A1 Power ramping controller for e.g. global system for mobile communication network, has counter to allocate start and final address of ramp memory for designating power levels of two slots to lower and upper index, respectively
02/09/2005EP1505828A2 Information output control system, information output control method, and information output control program