Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
04/2006
04/06/2006US20060072769 Audio output level setting method and device
04/06/2006US20060071713 Gain control device of transmitter in mobile communication terminal and method thereof
04/06/2006US20060071652 Power measuring apparatus, power control apparatus, radio communication apparatus and power measuring method
04/06/2006DE19624092B4 Verstärkungsschaltung, vorzugsweise für analoge oder digitale Hörgeräte sowie Hörgeräte unter Verwendung einer entsprechenden Verstärkungsschaltung bzw. eines entsprechenden Signalverarbeitungs-Algorithmus Amplification circuit, preferably for analog or digital hearing aid as well as hearing aids using a corresponding amplifying circuit or a corresponding signal processing algorithm
04/06/2006DE102004038089A1 Reglergestütztes Verfahren und reglergestützte Vorrichtung zur Bestimmung der Kennlinie eines Kompensationsgliedes in einem Pegelkreis Controller-implemented method and apparatus for determining the controller based characteristic of a compensation element in a level circular
04/05/2006EP1643640A1 Mobile-communication equipment and transmission power control method
04/05/2006EP1643639A1 Optical control type microwave phase forming device
04/05/2006EP1643638A1 Electronic volume control apparatus
04/05/2006EP1642384A2 Integrated power amplifier circuit
04/05/2006EP1127408B1 Variable gain amplifier with improved linearity
04/05/2006CN2770224Y Audio frequency amplifier low-frequency gain control circuit
04/05/2006CN2770223Y Offset correct circuit and electronic sound volume apparatus
04/05/2006CN1757194A Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver
04/05/2006CN1757186A Transceiver power detection architecture
04/05/2006CN1756074A Method for automatic amplification of volume
04/05/2006CN1756073A Amplifier circuit and input circuit
04/05/2006CN1250023C Method and device for controlling power of emission unit
04/05/2006CN1249919C Variable gain amplifier
04/05/2006CN1249918C RF gain varying amplifying device
04/05/2006CN1249912C High-efficiency modulating RF amplifier
04/04/2006US7024260 Method and apparatus for processing digital audio signal
04/04/2006US7024231 Booster system in a cellular phone base station
04/04/2006US7024169 AMPS receiver using a zero-IF architecture
04/04/2006US7024007 Electric signal processing of electroacoustic transducer
04/04/2006US7024004 Audio circuit having noise cancelling function
04/04/2006US7024002 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems
04/04/2006US7023278 Digital power amplifier level control
04/04/2006US7023275 Variable gain amplifier
04/04/2006US7023005 Gain compensation for optocoupler feedback circuit
03/2006
03/30/2006US20060068735 Radio receiver and radio receiving method
03/30/2006US20060068734 Radio receiver and radio receiving method
03/30/2006US20060068730 High frequency peak power detection circuit
03/30/2006US20060068726 Transmitter and radio communication terminal using the same
03/30/2006US20060067543 Electronic volume control apparatus
03/30/2006US20060067536 Method and system for time synchronizing multiple loudspeakers
03/30/2006US20060067535 Method and system for automatically equalizing multiple loudspeakers
03/30/2006US20060066404 Semiconductor integrated circuit for high frequency power amplifier and electric components with the semiconductor integrated circuit
03/30/2006US20060066403 Power amplifier and method for power amplification
03/30/2006US20060066402 Amplifier circuit and input circuit
03/30/2006US20060066398 High frequency power amplifier circuit and electric component for high frequency power amplifier
03/30/2006US20060066397 Multi-stage variable gain amplifier utilizing overlapping gain curves to compensate for log-linear errors
03/30/2006US20060066396 Circuit for power amplification
03/30/2006US20060066363 Driver circuit with gradual voltage ramp up and ramp down
03/30/2006DE4228833B4 Signalverarbeitungsschaltung Signal processing circuit
03/29/2006EP1639815A1 Receiver for receiving radio frequency signals
03/29/2006CN1754312A A method and a device for adjusting power amplifier properties
03/29/2006CN1753427A Device and method for automatically regulating mobile terminal loudness
03/28/2006US7020449 Fast settling variable gain amplifier with DC offset cancellation
03/28/2006US7020447 Method and apparatus for compensating for distortion in radio apparatus
03/28/2006US7020293 Noise reduction method
03/23/2006WO2006030282A1 Impulse noise correction
03/23/2006US20060063507 AM demodulator
03/23/2006US20060063496 Communications signal amplifiers having independent power control and amplitude modulation
03/23/2006US20060062406 Voltage supply circuit and microphone unit comprising the same
03/23/2006US20060061465 Thematic vehicle interior
03/23/2006DE102005032996A1 Amplitudenregelungsschaltung Amplitude control circuit
03/22/2006EP1638211A1 Impulse noise correction
03/22/2006EP1636955A2 Method and system for compensating for phase variations intermittently introduced into communication signals by enabling or disabling an amplifier
03/22/2006CN1750391A Variable gain amplifying circuit and relative method
03/22/2006CN1750390A Amplifier circuit and gain control method
03/22/2006CN1750389A Control parameter setting method for control circuit in measurement control system and measuring instrument
03/21/2006US7016435 Broadcast receiver having automatic gain control function
03/21/2006US7016433 Method and system for compensating for phase variations intermittently introduced into communication signals by enabling or disabling an amplifier
03/21/2006US7015761 Power amplifier module
03/21/2006US7015760 Amplifier control based on load impedance and methods
03/21/2006US7015759 AGC circuit
03/21/2006US7015758 Gain control circuit, and a radio communication apparatus using the same
03/16/2006WO2006027965A1 Receiving circuit and light receiving circuit
03/16/2006WO2006027427A1 Device for amplification of a receiving antenna signal
03/16/2006US20060057981 Communication terminal device and amplifying circuit
03/16/2006US20060057979 Dynamic power control circuit of wireless communication device
03/16/2006US20060056847 Optical control type microwave phase forming device
03/16/2006US20060055463 Linear transconductance cell with wide tuning range
03/16/2006US20060055462 Amplifier circuit and gain control method
03/16/2006DE10300705B4 Verfahren und Steuervorrichtung zur Steuerung einer automatischen Verstärkungsregelungs-Einheit A method and control apparatus for controlling an automatic gain control unit
03/16/2006DE10208415B4 Verstärkungsregelung in WLAN-Geräten Gain control in wireless devices
03/16/2006DE102005028260A1 Power amplifier controlling method in wireless communication system, involves producing concave inter-slot ramp control curve for reducing power of amplifier in inter-slot region between two continuous or adjacent time slots
03/16/2006DE102004038151A1 Navigationsgestützte geschwindigkeitsabhängige Lautstärkeregelung Navigation-assisted speed-sensitive volume control
03/15/2006EP1635467A2 Radio apparatus
03/15/2006EP1635455A1 Mute circuit
03/15/2006EP1634443A2 Digital broadcast receiver
03/15/2006EP1324486B1 Method and circuit for distortion compensation and output control
03/15/2006CN1747331A Device and method for controlling gains of audio frequency output amplifier of mobile communication terminal
03/15/2006CN1747320A Volume controller and control
03/15/2006CN1245799C Variable gain amplifier
03/14/2006US7013118 High speed operational amplifier design
03/14/2006US7013117 Analog power detection for gain control operations
03/14/2006US7013013 Surround device
03/14/2006US7013012 Method for processing sound effects in a notebook computer
03/14/2006US7013011 Audio limiting circuit
03/14/2006US7012968 Apparatus for detecting and adjusting transmission power of CDMA system
03/14/2006US7012478 Method and device to control the power of millimeter waves for a V-band TR module
03/14/2006US7012469 Integrated circuit device having high efficiency at the time of low power output
03/09/2006US20060052078 Device for amplifying the signal from a receive antenna
03/09/2006US20060052068 Communications signal amplifiers having independent power control and amplitude modulation
03/09/2006US20060050899 System and method for controlling sound volume
03/09/2006US20060050898 Audio signal processing apparatus and method
03/09/2006US20060050897 Audio signal processing method and apparatus device
03/09/2006US20060050817 Receiving apparatus and receiving method
03/09/2006US20060049875 Controllable amplifier circuit with a variable discrete-value gain, use of the amplifier circuit and method for operation of an amplifier whose gain can be adjusted in discrete values
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