| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 06/19/2007 | US7233206 Semiconductor integrated circuit device and wireless communication system |
| 06/19/2007 | US7233200 AGC circuit, AGC circuit gain control method, and program for the AGC circuit gain control method |
| 06/19/2007 | US7233190 Voltage subtracting circuit carrying out voltage subtraction by converting input voltage into current, intensity detecting circuit, and semiconductor integrated circuit device using the same |
| 06/19/2007 | US7232984 Sensor with improved gain-setting capability |
| 06/14/2007 | WO2007067555A1 Audio/video reproducing systems, methods and computer program products that modify audio/video electrical signals in response to specific sounds/images |
| 06/14/2007 | WO2007066960A1 Digital automatic gain control apparatus and method in burst mode optical receiver |
| 06/14/2007 | WO2007048221A3 Apparatus for variable gain amplifiers and mixers |
| 06/14/2007 | US20070135067 Apparatus for configuring portable communication system using multipath power amplifier |
| 06/14/2007 | US20070133824 Audio mixer |
| 06/14/2007 | US20070132513 Variable gain amplifier |
| 06/14/2007 | US20070132512 Variable gain amplifier |
| 06/13/2007 | EP1796265A1 Portable audio device providing automated control of audio volume parameters for hearing protection |
| 06/13/2007 | EP1618655B1 Front-end sensitivity booster |
| 06/13/2007 | EP1556968B1 An integrated rf signal level detector usable for automatic power level control |
| 06/13/2007 | EP1374447A4 System and method for uplink power control |
| 06/13/2007 | CN1980055A Sound-volume control system and method |
| 06/13/2007 | CN1980054A Audio-frequency processing device and sound-volume management method |
| 06/13/2007 | CN1979665A Audio-frequency silenced soft removing apparatus and method |
| 06/13/2007 | CN1321408C RF circuit for minidisc regeneration apparatus |
| 06/12/2007 | US7231195 Variable gain control circuit and receiver apparatus using the circuit |
| 06/12/2007 | US7231006 Receiver and method for generating a control signal |
| 06/12/2007 | US7230997 Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method |
| 06/12/2007 | US7230494 Method and apparatus for an LNA with high linearity and improved gain control |
| 06/12/2007 | US7230491 Method and apparatus for an LNA with high linearity and improved gain control |
| 06/12/2007 | US7230490 Voltage to current converter and method for converting |
| 06/07/2007 | US20070127731 Selective audio signal enhancement |
| 06/07/2007 | US20070126508 Wide dynamic range amplifier gain control |
| 06/07/2007 | US20070126503 Audio processing system and method for automatically adjusting volume |
| 06/06/2007 | EP1793493A1 Variable gain amplifier |
| 06/06/2007 | EP1645114B1 Integrated circuit for a mobile television receiver |
| 06/06/2007 | EP1543612A4 Power supply based audio compression for digital audio amplifier |
| 06/06/2007 | DE102006055788A1 HF-Verstärker mit variabler Verstärkung RF variable gain amplifier |
| 06/06/2007 | DE102006040793A1 Doppelwegdämpfungssystem Doppelwegdämpfungssystem |
| 06/06/2007 | DE102005058039A1 Schaltungsanordnung und Verfahren zur Verstärkung eines elektrischen Eingangssignals Circuit arrangement and method for amplifying an electrical input signal |
| 06/06/2007 | CN1320783C Automatic gain control method for highly integrated communicaton receiver |
| 06/06/2007 | CN1320748C Db-linear variable gain amplifier (VGA) stage with a high broad band |
| 06/06/2007 | CN1320442C Audio processing circuit and related method |
| 06/05/2007 | US7228114 Wide dynamic range power detection scheme |
| 06/05/2007 | US7227959 Multi-channel digital feedback reducer system |
| 06/05/2007 | US7227916 Receiver with automatic gain control that operates with multiple protocols and method thereof |
| 06/05/2007 | US7227915 Receiver and AGC method |
| 06/05/2007 | US7227914 Automatic gain control for digital signals |
| 06/05/2007 | US7227909 High-quality power ramping in a communications transmitter |
| 06/05/2007 | US7227415 High frequency power amplifier circuit and radio communication system |
| 06/05/2007 | US7227413 Audio amplification device with antipop circuitry |
| 05/31/2007 | WO2007043122A9 Variable gain amplifier and its control method |
| 05/31/2007 | US20070121966 Volume normalization device |
| 05/31/2007 | US20070121965 Automatic audio signal dynamic range adjustment |
| 05/31/2007 | US20070121958 Methods and apparatuses for recording and playing back audio signals |
| 05/31/2007 | US20070121957 Amusement ride with rider-selected integrated audio |
| 05/31/2007 | US20070121955 Room acoustics correction device |
| 05/31/2007 | US20070121475 Method and system for controlling the level of a data signal read from an optical disc |
| 05/31/2007 | US20070120605 Integrated switchless programmable attenuator and low noise amplifier |
| 05/31/2007 | US20070119293 Balloon instrument and method of making same |
| 05/30/2007 | CN1973434A Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 05/30/2007 | CN1972120A A method and device for implementing adjustment of volume based on environmental noise detection |
| 05/29/2007 | US7224722 Direct conversion RF transceiver with automatic frequency control |
| 05/29/2007 | US7224228 Semiconductor integrated circuit for high frequency power amplifier, electronic component for high frequency power amplifier, and radio communication system |
| 05/29/2007 | US7224220 Low distortion variable gain and rooting amplifier with solid state relay |
| 05/29/2007 | US7224217 Switching amplifier |
| 05/29/2007 | US7224215 Intelligent RF power control for wireless modem devices |
| 05/29/2007 | CA2313219C Audio codec with agc controlled by a vocoder |
| 05/24/2007 | WO2007058650A1 Equalizer interface for electronic apparatus |
| 05/24/2007 | US20070118857 System and method of recording video content |
| 05/24/2007 | US20070116303 Audio output driver and methods for use therewith |
| 05/24/2007 | US20070116160 Signal processing method, particularly in a radio-frequency receiver, and signal conditioning circuit |
| 05/24/2007 | US20070115061 Device for voltage-noise rejection and fast start-up |
| 05/24/2007 | DE102006044006A1 Vorrichtung zum Wandeln eines asymmetrischen Singals in ein Differenzsignal Apparatus for converting an asymmetric singals in a differential signal |
| 05/23/2007 | CN1969454A Method and device for amplifying an amplitude- and phase-modulated electric signal |
| 05/23/2007 | CN1968243A Mean signal power detection method and system |
| 05/23/2007 | CN1968011A Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistor |
| 05/23/2007 | CN1968010A Apparatus and method to control volume of received sound signals |
| 05/23/2007 | CN1317835C Peak-hold circuit and infrared communication device provided with such circuit |
| 05/22/2007 | US7221919 Receiver circuit and radio communication terminal apparatus |
| 05/22/2007 | US7221907 On orbit variable power high power amplifiers for a satellite communications system |
| 05/22/2007 | US7221229 Receiver circuit having an optical reception device |
| 05/22/2007 | US7221226 Amplifying apparatus with automatic level controller |
| 05/22/2007 | US7221225 Dual band power amplifier module for wireless communication devices |
| 05/17/2007 | US20070111684 Power Control On A Packet-By-Packet Basis In A CMOS Transceiver |
| 05/17/2007 | US20070111661 Integrated Crosspoint Switch with Band Translation |
| 05/17/2007 | US20070110263 Voice activity detection with adaptive noise floor tracking |
| 05/17/2007 | US20070110262 Apparatus and method to control volume of received sound signals |
| 05/17/2007 | US20070110261 Audio processing system with function of automatic gain control and method thereof |
| 05/17/2007 | US20070110260 Audio processing system with function of automatic gain control and method thereof |
| 05/17/2007 | US20070110253 Customizability Digital Sound Relaxation System |
| 05/17/2007 | US20070109863 Power regulation in radio-frequency transmitters |
| 05/17/2007 | US20070109053 Method and circuit for controlling amplification |
| 05/17/2007 | US20070109046 Distortrion/efficiency adaptation in a variable-data-rate radio transmitter |
| 05/17/2007 | US20070109045 Power amplifying apparatus |
| 05/17/2007 | US20070109042 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 05/16/2007 | EP1784914A2 Auxiliary transistor gate bias control system and method |
| 05/16/2007 | CN2901699Y Linear logarithmic signal changing circuit capable of programmable gain value |
| 05/16/2007 | CN2901698Y Closed ring controllable gain amplifier using comparator and digital logic as feedbackring |
| 05/16/2007 | CN1964187A A system and method to manage sound volume |
| 05/16/2007 | CN1964186A A system and method to manage sound volume |
| 05/16/2007 | CN1964185A A control method for self-adapting signal amplitude of directional sound source |
| 05/16/2007 | CN1963535A Automatic compensation of gain versus temperature |
| 05/16/2007 | CN1316766C 红外线接收器 IR receiver |
| 05/15/2007 | US7218951 Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
| 05/15/2007 | US7218903 Squelch detecting circuit |