| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 02/09/2005 | EP1504527A2 Digital automatic gain control for transceiver devices |
| 02/09/2005 | EP1504526A1 Improved variable gain amplifier |
| 02/09/2005 | EP0829134B1 Selective call receivers with stepwise variable gain control with hysteresis |
| 02/09/2005 | CN1578536A Supplying electrical power |
| 02/09/2005 | CN1578123A Amplifier circuit having signal detection function |
| 02/09/2005 | CN1578122A Offset correct method, offset correct circuit and electronic sound volume device |
| 02/09/2005 | CN1578121A High frequency power amplifier circuit and radio communication system |
| 02/09/2005 | CN1578120A High frequency amplifier circuit and mobile communication terminal using the same |
| 02/09/2005 | CN1578115A Carrier detecting circuit and infrared communication device using same |
| 02/09/2005 | CN1577954A Attenuator and portable telephone terminal apparatus using the same |
| 02/09/2005 | CN1189032C Automatic gain controller and method for outputting gain control signal |
| 02/09/2005 | CN1188946C Circuit and method for linearizing amplitude modulation in power amplifier |
| 02/08/2005 | US6853837 CDMA receiver and DCMA demodulator with AGC circuit |
| 02/08/2005 | US6853242 Power supply based audio compression for digital audio amplifier |
| 02/08/2005 | CA2360266C Combined discrete automatic gain control (agc) and dc estimation |
| 02/08/2005 | CA2315053C Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 02/04/2005 | CA2436624A1 Timer ramp-up circuit and method for a sound masking system |
| 02/03/2005 | WO2005011165A1 Radio receiver and automatic gain control method |
| 02/03/2005 | WO2005011111A2 Audio conditioning apparatus, method and computer program product |
| 02/03/2005 | US20050027884 Information output control system, information output control method, and information output control program |
| 02/03/2005 | US20050027526 Audio signal processing for speech communication |
| 02/03/2005 | US20050026584 Low-latency DC compensation |
| 02/03/2005 | US20050025322 Pop and click reduction using DAC power up and power down processing |
| 02/03/2005 | US20050025023 Front photo detector having no gain selection switch, optical pick-up including the front photo detector, and optical recording and/or playing apparatus including the front photo detector |
| 02/03/2005 | US20050024145 Fast settling power amplifier regulator |
| 02/03/2005 | US20050024137 Power detector for mismatched load |
| 02/02/2005 | EP1503517A2 Method and apparatus for increasing receiver immunity to interference |
| 02/02/2005 | EP1502353A2 Wide-dynamic-range, variable-gain, low-noise amplifier circuit |
| 02/02/2005 | CN1575036A System and method of controlling a speaker volume for a mobile terminal |
| 02/02/2005 | CN1574616A Audio processing apparatus |
| 02/02/2005 | CN1574615A Feedback control system and method |
| 02/02/2005 | CN1574614A Automatic gain controller and a transmitting apparatus and method for use with a mobile communication terminal |
| 02/02/2005 | CN1574613A 可变电阻电路 The variable resistance circuit |
| 02/02/2005 | CN1574611A Mute circuit and btl audio amplifier apparatus |
| 02/02/2005 | CN1574597A Amplitude regulation circuit and method, and motor driving control apparatus and method |
| 02/02/2005 | CN1573930A Speech correction apparatus |
| 02/02/2005 | CN1187928C Transmititng apparatus and gain compensating method |
| 02/02/2005 | CN1187923C CDMA radio transmitting equipment, its transmitting power control method, and CDMA wireless transmitter-receiver system |
| 02/01/2005 | US6850574 Multiple bandwidth amplifier control systems for mobile stations and methods therefor |
| 02/01/2005 | US6850109 Linear voltage subtractor/adder circuit and MOS differential amplifier circuit therefor |
| 01/27/2005 | WO2005009034A1 Apparatus and method for providing an agc function using multiple feedback sources |
| 01/27/2005 | WO2005008885A2 A method and apparatus for automatic gain control of a wireless receiver |
| 01/27/2005 | US20050020227 High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device |
| 01/27/2005 | US20050020221 Radio reception apparatus, signal processing timing control method, and signal processing timing control program |
| 01/27/2005 | US20050018863 Method to maintain stability in a bi-directional amplifier |
| 01/27/2005 | US20050018856 System and method for controlling audio signals for playback |
| 01/27/2005 | US20050018780 Global system for mobile communication (GSM) and general packet radio service (GPRS) power ramping controller and associated power ramping method |
| 01/27/2005 | US20050018061 Apparatus and method for amplifying analog signal and analog preprocessing circuits and image pick-up circuits |
| 01/27/2005 | US20050017784 Variable gain amplifier and a large scale integrated circuit installed thereof applicable to processing signals |
| 01/26/2005 | EP1501189A2 High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device |
| 01/26/2005 | EP1499949A1 Apparatus and method for adapting audio signal |
| 01/26/2005 | CN1571287A Radio receiver and radio signal processing method |
| 01/25/2005 | US6847904 Multi-channel programmable gain amplifier controlled with a serial interface |
| 01/25/2005 | US6847807 Transmission circuit and radio transmission apparatus |
| 01/25/2005 | US6847263 Optical receiver with wide dynamic range transimpedance amplifier |
| 01/25/2005 | US6847262 Integrated power amplifier module with power sensor |
| 01/25/2005 | US6847261 Automatic gain control method and device |
| 01/20/2005 | WO2005006743A1 Integrated circuit for a mobile television receiver |
| 01/20/2005 | WO2005006574A2 Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication |
| 01/20/2005 | WO2004095726B1 Am receiver and demodulator |
| 01/20/2005 | WO2004082135A3 Closed loop power control of non-constant envelope waveforms using sample/hold |
| 01/20/2005 | WO2004068705A8 Preamplifier circuit, clock switch circuit, and optical receiver using the same |
| 01/20/2005 | US20050015252 Speech correction apparatus |
| 01/20/2005 | US20050013449 Integrating apparatus |
| 01/20/2005 | US20050013447 Supplying electrical power |
| 01/20/2005 | US20050012553 Variable gain low noise amplifier and method |
| 01/20/2005 | US20050012549 Amplifier circuit having signal detection function |
| 01/19/2005 | EP1499017A2 Electrical power supply |
| 01/19/2005 | EP1499016A1 Circuit and process for enhancing the efficiency of a power amplifier |
| 01/19/2005 | EP1499015A1 Circuit and process for linearizing the characteristics of a GSM power amplifier |
| 01/19/2005 | EP1499014A1 A method for automatic gain control, for instance in a telecommunication system, device and computer program therefor |
| 01/19/2005 | EP1145454A4 Apparatus and method for compensating rf gain based on measured rf noise |
| 01/19/2005 | CN1568578A Radio transmission device and radio transmission method |
| 01/19/2005 | CN1185788C Power amplification circuit with load regulator for controlling adjacent and alternate channel power |
| 01/19/2005 | CN1185784C Method and apparatus for preventing power amplifier saturation |
| 01/18/2005 | US6845232 Analog peak detection circuitry for radio receivers |
| 01/18/2005 | US6844784 Wide dynamic range transimpedance amplifier |
| 01/18/2005 | US6844780 Automatic gain control circuit |
| 01/18/2005 | US6844740 Measuring a signal using a programmable gain amplifier |
| 01/18/2005 | US6843597 Method and apparatus of a fast two-loop automatic gain control circuit |
| 01/18/2005 | CA2344871C Method for in-situ measuring and in-situ correcting or adjusting a signal process in a hearing aid with a reference signal processor |
| 01/13/2005 | WO2005004341A1 Digital signal reception device |
| 01/13/2005 | WO2005004325A1 Distortion/efficiency adaptation in a variable-data-rate radio transmitter |
| 01/13/2005 | WO2005004324A1 Optical control type microwave phase forming device |
| 01/13/2005 | WO2004071108A3 Apparatus, and an associated method, for increasing receiver sensitivity of a direct conversion receiver |
| 01/13/2005 | WO2004014501A3 Gaming machine with automatic sound level adjustment and method therefor |
| 01/13/2005 | US20050009552 Method of controlling transmission power and subscriber equipment |
| 01/13/2005 | US20050009490 Method for controlling power level of received signal in ultra wide band transmission system |
| 01/13/2005 | US20050009489 Radio receiver and radio signal processing method |
| 01/13/2005 | US20050009480 System and method for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control |
| 01/13/2005 | US20050008172 Apparatus and method for eliminating noise |
| 01/13/2005 | US20050007197 Method and system for producing a drive signal for a current steering amplifier |
| 01/13/2005 | US20050007192 Automatic gain control circuit |
| 01/13/2005 | US20050007045 Amplitude regulation circuit and method, and motor driving control apparatus and method |
| 01/12/2005 | EP1360760B1 Amplitude limitation |
| 01/12/2005 | EP1312162B1 Voice enhancement system |
| 01/12/2005 | CN1564246A Audio processing circuit and related method |
| 01/12/2005 | CN1184737C Analog-digital converter |
| 01/12/2005 | CN1184736C Negative feedback gain control for common electrode transistor |
| 01/11/2005 | US6842127 Closed-loop control of an analog system providing an output signal with a control signal |