| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 09/09/1997 | US5666430 Method and apparatus for leveling audio output |
| 09/09/1997 | US5666426 Automatic volume control to compensate for ambient noise variations |
| 09/09/1997 | US5666384 Method and apparatus for mitigating noise in an output signal of an audio automatic gain control circuit |
| 09/03/1997 | EP0793358A2 Output power control device |
| 09/03/1997 | CN1158677A Digital AGC for a CDMA radiotelephone |
| 09/02/1997 | US5664022 Noise gate control circuitry for electronic systems |
| 09/02/1997 | US5663689 Method and apparatus for providing a high speed charge pump with low static error |
| 09/02/1997 | US5663684 Wafer-stage adjustment for compensating for mismatches in temperature dependent IC components |
| 09/02/1997 | US5663681 Apparatus and method for stabilizing an amplifier |
| 09/02/1997 | US5663671 Electronic circuit including operational amplifier and clamping circuit |
| 08/27/1997 | EP0792020A1 Electromagnetic-noise protection circuit |
| 08/27/1997 | EP0792017A2 High-frequency radio signal receiving apparatus for digital communication |
| 08/27/1997 | EP0792016A1 Signal-processing preamplifier for optical disc system |
| 08/27/1997 | EP0792015A2 Radio selective call receiver capable of adjusting radio signal level |
| 08/27/1997 | EP0792014A2 Circuit for controlling the output amplitude of a high frequency power amplifier |
| 08/26/1997 | US5661815 Volume reservation apparatus of an audio system and a method thereof |
| 08/26/1997 | US5661762 Multiple antenna home base for digital cordless telephones |
| 08/26/1997 | US5661442 Amplitude control system having parallel integrating signal paths |
| 08/26/1997 | CA2116582C Rf amplifier bias control method and apparatus |
| 08/24/1997 | CA2196957A1 Electromagnetic-noise protection circuit |
| 08/20/1997 | EP0790503A1 Radiofrequency power measuring device |
| 08/19/1997 | US5659893 Transmission circuit with improved gain control loop |
| 08/19/1997 | US5659892 Operation of low-cost, fixed output power radio in fixed gain mode |
| 08/19/1997 | US5659582 Receiver, automatic gain controller suitable for the receiver, control signal generator suitable for the automatic gain controller, reception power controller using the automatic gain controller and communication method using the receiver |
| 08/19/1997 | US5659253 For detecting an rf input signal |
| 08/14/1997 | WO1997029520A1 Temperature compensated logarithmic detector |
| 08/14/1997 | CA2241601A1 Temperature compensated logarithmic detector |
| 08/13/1997 | EP0789451A1 High frequency amplifier and control |
| 08/13/1997 | EP0500700B1 High fidelity hearing aid amplifier |
| 08/13/1997 | CN1156924A Device and method for automatically controlling transmission power |
| 08/12/1997 | US5657097 Method and apparatus for generating a peaking signal |
| 08/12/1997 | US5656972 Method and device for controlling output power of a power amplifier |
| 08/07/1997 | WO1997028599A1 Automatic gain control circuit |
| 08/07/1997 | DE19603722A1 Integrated HF input stage for HF amplifying control |
| 08/06/1997 | EP0787386A2 Sectorized communication system and methods useful therefor |
| 08/06/1997 | EP0787383A1 Automatic sensitivity control |
| 08/06/1997 | EP0722595B1 Transponder with automatic gain control |
| 08/06/1997 | CN1156523A Data indepdendent automatic gain control circuit for telecommunication application |
| 08/05/1997 | US5654669 Programmable instrumentation amplifier |
| 07/31/1997 | WO1997027669A1 Radio receiver squelch circuit |
| 07/31/1997 | DE19601729A1 Controlling amplifying factor of aerial amplifier |
| 07/30/1997 | EP0786860A1 Automatic squelch for a receiver |
| 07/30/1997 | EP0786859A2 Power amplifying circuit and method |
| 07/30/1997 | EP0548181B1 Audio-visual reproduction |
| 07/30/1997 | CN1155782A Wide range variable output amplifier apparatus with high efficiency |
| 07/30/1997 | CA2194535A1 Hysteresis-free anti-saturation circuit |
| 07/29/1997 | US5652800 Automatic mixer priority circuit |
| 07/29/1997 | US5652547 Current comparator automatic output control |
| 07/29/1997 | US5652544 Apparatus and method for programming an amplifier |
| 07/29/1997 | US5652542 Digital signal processor for amplifier |
| 07/24/1997 | DE19613625C1 Radio station amplifier with controllable output power for high-frequency signal |
| 07/23/1997 | EP0785640A1 Method for extending the RSSI range and radio transceiver operating in accordance with this method |
| 07/23/1997 | EP0785632A2 Spread spectrum signal receiver |
| 07/23/1997 | EP0785501A2 Apparatus for eliminating audio noise when power is cycled to a computer |
| 07/22/1997 | US5651073 Automatic level control circuit for restricting sound level |
| 07/22/1997 | US5650926 Trace-and-track method |
| 07/16/1997 | EP0784364A1 Method of control of light amplification medium, light amplifier, and system using the same |
| 07/16/1997 | EP0783801A2 Digital agc for a cdma radiotelephone |
| 07/16/1997 | EP0511989B1 Amplitude locked loop circuits |
| 07/16/1997 | CN1154768A Output power controller |
| 07/16/1997 | CN1154610A Transmitter power varying device having bypass line for power amplifier |
| 07/16/1997 | CN1154601A Pre-amplifier |
| 07/15/1997 | US5649321 Of a communications receiver |
| 07/15/1997 | US5648992 In a communications system |
| 07/10/1997 | WO1997024858A2 Voice enhancement system and method |
| 07/10/1997 | WO1997024801A1 Methods and apparatus for signal amplitude control systems |
| 07/10/1997 | WO1997024800A1 Efficient parallel-stage power amplifier |
| 07/10/1997 | WO1997024798A1 Out-of-band compensation for non-linear device |
| 07/10/1997 | DE4227601C1 Call tone control for telephone handset |
| 07/10/1997 | CA2241903A1 Voice enhancement system and method |
| 07/09/1997 | EP0783207A2 digital signal processing method and apparatus |
| 07/09/1997 | EP0782803A1 Method for demodulating digitally modulated data signals |
| 07/09/1997 | EP0782797A1 Method and apparatus for temperature compensation in a time division multiplex receiver |
| 07/08/1997 | US5647011 Headphone sound system |
| 07/08/1997 | US5646963 Fast automatic gain control |
| 07/08/1997 | US5646578 Wide dynamic range power amplifier |
| 07/08/1997 | US5646577 SHF output power and channel frequency switching apparatus in FPU system |
| 07/03/1997 | DE19654295A1 Noise suppression control circuit especially for shot noise |
| 07/02/1997 | EP0782253A2 Signal processing method |
| 07/02/1997 | EP0781468A1 Improvements to a logarithmic converter |
| 07/02/1997 | CN1153430A Transmitting apparatus and method of adjusting gain of signal to be transmitted, and receiving apparatus and method of adjusting gain of received signal |
| 07/02/1997 | CN1153368A Karaoke amplifier with variably settable range of parameter to control audio signal |
| 07/01/1997 | US5644590 Spread spectrum communication apparatus and signal intensity detection apparatus |
| 07/01/1997 | CA2086541C Power amplifier saturation detection and correction method and apparatus |
| 06/26/1997 | DE19653558A1 Automatic amplification regulation circuit |
| 06/24/1997 | US5642378 Dual mode analog and digital cellular phone |
| 06/24/1997 | US5642075 Sampled data automatic gain control |
| 06/19/1997 | DE19547093A1 Circuit for improvement of noise immunity of audio signal |
| 06/19/1997 | DE19546596A1 Hearing aid with automatic gain control |
| 06/18/1997 | EP0779706A2 Circuitry for improving signal to noise ratio |
| 06/18/1997 | EP0778998A2 A linearizer for linearizing a non-linear component controlled by control voltage |
| 06/17/1997 | US5640691 For cellular telephone systems |
| 06/17/1997 | US5640460 Amplitude adjust circuit and method thereof |
| 06/17/1997 | CA2118553C Automatic gain control of transponded supervisory audio tone |
| 06/12/1997 | DE19611026C1 Noise suppression for hearing aid with signal level dependent AGC |
| 06/11/1997 | EP0777933A1 Spread spectrum radiotelephone having adaptive transmitter gain control |
| 06/10/1997 | US5638375 In a communications system |
| 06/10/1997 | US5638141 Broadcast signal receiver having a low-noise amplifier inserted before a tuner |
| 06/10/1997 | US5638140 FPLL having AFC filter with limited phase shift |
| 06/05/1997 | WO1997020387A1 Circuit for briefly muting the reproduction of a low-frequency signal in a radio receiver |