| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 01/03/2007 | CN1890874A Photo-receiving pre-amplifier |
| 01/03/2007 | CN1890741A Method and system for controlling the level of a data signal read from an optical disc |
| 01/02/2007 | US7158762 Direct conversion RF transceiver with automatic transmit power control |
| 01/02/2007 | US7158761 Smart amplifier for time division duplex wireless applications |
| 01/02/2007 | US7158729 Optical receiving device |
| 01/02/2007 | US7158590 Gain control in wireless LAN devices |
| 01/02/2007 | US7158494 Multi-mode communications transmitter |
| 01/02/2007 | US7158489 Data transmission in a TDMA system |
| 01/02/2007 | US7157977 Automatic gain control feedback amplifier |
| 01/02/2007 | US7157974 Power amplifier and method for power amplification |
| 01/02/2007 | US7157973 Layout technique for matched resistors on an integrated circuit substrate |
| 01/02/2007 | US7157684 Receiving circuit for free-space optical communication |
| 12/28/2006 | WO2005086801A3 Companion microphone system and method |
| 12/28/2006 | US20060293773 Process for adjusting the sound volume of a digital sound recording |
| 12/28/2006 | US20060293004 Semiconductor integrated circuit device and wireless communication system |
| 12/28/2006 | US20060293003 High-efficiency modulating RF amplifier |
| 12/28/2006 | US20060293002 High-efficiency modulating RF amplifier |
| 12/28/2006 | US20060291671 Switchable audio circuits for mobile terminals and methods and computer program products for operating the same |
| 12/28/2006 | US20060290424 Linear power efficient radio frequency (RF) driver system and method with power level control |
| 12/27/2006 | CN1886900A Reception device and reception method |
| 12/27/2006 | CN1886894A Programmable automatic gain control according to transmission protocols |
| 12/27/2006 | CN1885712A Agc电路 Agc circuit |
| 12/27/2006 | CN1885711A Volume control method and system |
| 12/27/2006 | CN1292538C Smoothing circuit |
| 12/26/2006 | US7155385 Automatic gain control for adjusting gain during non-speech portions |
| 12/26/2006 | US7155257 Communication station with automatic cable loss compensation |
| 12/26/2006 | US7155186 AM receiver with controllable RF input circuit |
| 12/26/2006 | US7155017 System and method for controlling audio signals for playback |
| 12/26/2006 | US7154968 Operating point independent digital automatic level control |
| 12/26/2006 | US7154338 Power control circuit and method |
| 12/26/2006 | US7154337 Amplifying a signal using a control modulator that provides a bias resistance |
| 12/26/2006 | US7154336 High-frequency power amplifier |
| 12/26/2006 | US7154308 Driver circuit with gradual voltage ramp up and ramp down |
| 12/26/2006 | US7154238 Semiconductor integrated circuit including a motor driving control apparatus having an amplitude regulation circuit |
| 12/21/2006 | WO2006099530A3 Automatic gain control for a wireless receiver |
| 12/21/2006 | US20060287747 Audio Buffers with Audio Effects |
| 12/21/2006 | US20060285701 System and method for OS control of application access to audio hardware |
| 12/21/2006 | US20060285582 Transmission device and gain control method |
| 12/21/2006 | US20060284681 Wide bandwidth attenuator input circuit for a measurement probe |
| 12/21/2006 | US20060284674 Regulator |
| 12/20/2006 | EP1733473A1 Method and system for ensuring audio safety |
| 12/20/2006 | CN1883218A Transmission device and gain control method |
| 12/20/2006 | CN1883112A AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit, and semiconductor integrated circuit thereof |
| 12/20/2006 | CN1881788A Variable gain amplifier circuit and DC offset correction method and radio receiving device |
| 12/20/2006 | CN1881787A Power amplifier output power control loop |
| 12/19/2006 | US7152082 Audio frequency response processing system |
| 12/19/2006 | US7151947 Method and apparatus for controlling transmission power associated with a transmitting unit |
| 12/19/2006 | US7151215 Waveform adjusting system for music file |
| 12/14/2006 | WO2006132908A1 Processing an information carrying signal for automatic gain conrtol |
| 12/14/2006 | WO2006132036A1 A/d converter |
| 12/14/2006 | US20060282562 Mixer apparatus and parameter-setting changing method for use in the mixer apparatus |
| 12/14/2006 | US20060279359 High-frequency power amplifier circuit and electronic part for communication |
| 12/13/2006 | EP1732254A2 Mixer apparatus and method for changing parameter settings in the mixer apparatus |
| 12/13/2006 | EP1732231A2 System and method for controlling power output from a power amplifier |
| 12/13/2006 | CN1879297A System and method for controlling audio output |
| 12/13/2006 | CN1879150A System and method for audio signal processing |
| 12/13/2006 | CN1290096C Optical disk system with non-linearly controlled amplifier |
| 12/12/2006 | US7149685 Audio signal processing for speech communication |
| 12/12/2006 | US7149487 Mobile communication terminal device and variable gain circuit |
| 12/12/2006 | US7149314 Reverberation processor based on absorbent all-pass filters |
| 12/12/2006 | US7148752 Integrated power amplifier module with power sensor |
| 12/12/2006 | US7148750 Gigabit ethernet transceiver with analog front end |
| 12/12/2006 | US7148749 Closed loop power control with high dynamic range |
| 12/12/2006 | US7148748 Active protection circuit for load mismatched power amplifier |
| 12/12/2006 | US7148747 Apparatus for automatically controlling a gain of a power amplifier and associated methods |
| 12/12/2006 | US7148744 Calibration technique for variable-gain amplifiers |
| 12/07/2006 | WO2006128856A1 Device and method for audio signal gain control |
| 12/07/2006 | WO2006047473A3 A signal-enhancement system for photodetector outputs |
| 12/07/2006 | WO2005089360A3 Method and apparatus for creating spatializd sound |
| 12/07/2006 | US20060274905 Techniques for presenting sound effects on a portable media player |
| 12/06/2006 | EP1729410A1 Device and method for audio signal gain control |
| 12/06/2006 | EP1728333A1 Radio receiver, radio reception integrated circuit, radio clock, and repeater |
| 12/06/2006 | EP1728084A1 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 12/06/2006 | EP1040570B1 A current steering variable gain amplifier with linearizer |
| 12/06/2006 | CN1875594A Dual mode multi-slot EGPRS transmitter |
| 12/06/2006 | CN1875547A Adaptive interference immunity control |
| 12/06/2006 | CN1288839C Fully differential, variable-gain amplifier and a multidimensional amplifier arrangement |
| 12/06/2006 | CN1288838C Power control in MCAP equipped base stations |
| 12/06/2006 | CN1288837C Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 12/05/2006 | US7146296 Acoustic modeling apparatus and method using accelerated beam tracing techniques |
| 12/05/2006 | US7146194 Amplifying circuit, speaker system, and mobile information terminal employing amplifying circuit |
| 12/05/2006 | US7146141 Direct conversion receiver with DC offset compensation and method thereof |
| 12/05/2006 | US7146010 Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system |
| 12/05/2006 | US7145396 Method and apparatus for protecting devices in an RF power amplifier |
| 12/05/2006 | US7145395 Linear transconductance cell with wide tuning range |
| 12/05/2006 | US7145389 Temperature controlled, log-linear gain control circuit for amplifiers |
| 11/30/2006 | WO2006127950A1 Method and apparatus for controlling spurious transmissions in a communications system |
| 11/30/2006 | WO2006126301A1 Automatic gain control circuit |
| 11/30/2006 | WO2006062831A3 Voltage clamp for improved transient performance of a collector voltage controlled power amplifier |
| 11/30/2006 | WO2005072349A3 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems |
| 11/30/2006 | US20060269082 Method of current management in a battery powered audio device |
| 11/30/2006 | US20060269081 Sound reproducing system for use with multiple rooms |
| 11/30/2006 | US20060268969 Automatic bit rate control circuit |
| 11/30/2006 | US20060267688 High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier |
| 11/30/2006 | US20060267678 Non-linear circuit, radio communication device, and non-linear amplification method |
| 11/29/2006 | EP1727391A1 Volume control method, volume controller, volume control program, electronic apparatus |
| 11/29/2006 | EP1727360A1 Automatic gain control circuit |
| 11/29/2006 | EP1727279A1 Automatic gain control using multi-comparators |
| 11/29/2006 | CN1871791A Additional regulation of the reference signal of the automatic power control in a mobile terminal |
| 11/29/2006 | CN1871745A Method and apparatus providing integrated load matching using adaptive power amplifier compensation |