| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
|---|
| 02/17/1987 | US4644289 Variable power amplifier for audio frequency signals and method |
| 02/17/1987 | US4644145 Optical receiver with electrically variable attenuator |
| 02/17/1987 | CA1218119A1 Overload protector |
| 02/03/1987 | US4641344 Audio equipment |
| 02/03/1987 | US4641141 Coherent dual automatic gain control system |
| 01/31/1987 | CN85102062A Wide band controlled amplifier |
| 01/27/1987 | US4639795 Signal transmission circuit |
| 01/14/1987 | EP0208530A2 Squelch detecting circuit with squelch start determining means |
| 01/14/1987 | EP0208433A2 Response-gain independent amplifier |
| 01/14/1987 | EP0208082A2 Radio apparatus with a circuit to blank noise pulses |
| 01/13/1987 | US4637066 Noise blanking signal generator for AM radio |
| 01/13/1987 | US4637049 Car-mounted audio system |
| 01/13/1987 | US4636993 Automatic gain control for seismic data |
| 01/13/1987 | US4636741 Multi-level power amplifying circuitry for portable radio transceivers |
| 01/08/1987 | DE3522635A1 High-frequency amplifier with detector for multi-carrier operation, and application |
| 01/06/1987 | US4635297 Overload protector |
| 01/06/1987 | US4635118 Interface circuit for video signal peaking control |
| 01/06/1987 | US4634997 Automatic gain control amplifier circuit |
| 01/06/1987 | US4634902 Circuit arrangement capable of adjusting a threshold level of a differential transistor circuit |
| 01/02/1987 | DE3522416A1 Controllable broadband amplifier circuit |
| 12/30/1986 | US4633518 AGC voltage generator with automatic rate switching |
| 12/30/1986 | US4633188 Mixer/amplifier circuit |
| 12/23/1986 | US4631525 Digital fader or like device |
| 12/23/1986 | US4631489 FM signal magnitude quantizer and demodulator compatible with digital signal processing |
| 12/16/1986 | US4630304 Automatic background noise estimator for a noise suppression system |
| 12/16/1986 | US4630302 Hearing aid method and apparatus |
| 12/16/1986 | US4630290 Squelch signal generator capable of generating a squelch signal with a high reliability |
| 12/09/1986 | US4628539 In a receiver |
| 12/09/1986 | US4628526 Method and system for matching the sound output of a loudspeaker to the ambient noise level |
| 12/09/1986 | US4628276 Logarithmically linearly controlled variable gain amplifier |
| 12/09/1986 | CA1215136A1 Optical receiver circuit |
| 12/09/1986 | CA1215127A1 Receiver for multicarrier signals protected from unwanted signals |
| 12/09/1986 | CA1214998A1 Digitally processed gain control device |
| 12/04/1986 | WO1986007216A1 Rf input drive saturation control loop |
| 12/03/1986 | EP0203132A1 Acoustic signal attenuator |
| 12/02/1986 | US4627102 Squelch circuit |
| 12/02/1986 | US4627101 Muting circuit |
| 12/02/1986 | US4626793 Receiver amplifier for amplification of a photoelectric current |
| 12/02/1986 | US4626789 Demodulating circuit for data signal |
| 12/02/1986 | US4626788 Circuit for reconstructing noise-affected signals |
| 12/02/1986 | US4626676 Light detector having a photodiode with bias control |
| 12/01/1986 | EP0148879A4 Squelch circuit. |
| 11/26/1986 | EP0202266A1 Automatic gain control amplifier circuit. |
| 11/18/1986 | US4623933 Video camera gain control circuit |
| 11/18/1986 | US4623786 Transimpedance amplifier with overload protection |
| 11/18/1986 | CA1214229A1 Circuit arrangement for converting an input voltage into a proportional output signal |
| 11/18/1986 | CA1214221A1 Remote digital volume control system |
| 11/12/1986 | CA1213947A Signal conditioner for biological signals |
| 11/11/1986 | US4622520 FM demodulator with impulse noise elimination circuit |
| 11/04/1986 | USRE32278 Muting circuit |
| 11/04/1986 | US4621238 Differential amplifier circuit having controllable gain |
| 11/04/1986 | US4621206 Voltage level detecting circuit |
| 10/29/1986 | EP0199381A1 Amplifier arrangement |
| 10/29/1986 | EP0198999A2 Level controller with a motor drive for the reproduction of set values |
| 10/29/1986 | EP0131055B1 Automatic gain control circuit |
| 10/28/1986 | US4620108 Means providing independently controlled superimposed AC and DC voltages |
| 10/21/1986 | US4619002 Self-calibrating signal strength detector |
| 10/08/1986 | EP0196906A2 Automatic gain control detection circuit |
| 10/08/1986 | EP0196703A1 Amplifier arrangement |
| 10/08/1986 | EP0196414A2 Motor-driven adjustable level regulator |
| 10/07/1986 | US4616271 Digital audio system with automatic fade in and fade out operations |
| 10/01/1986 | EP0196131A1 Amplifier arrangement |
| 09/24/1986 | EP0195010A1 Automatic gain control circuit. |
| 09/24/1986 | CN85102654A High sensitive frequency-selective amplifier |
| 09/23/1986 | US4613823 Multi-stage signal transmitting system |
| 09/23/1986 | CA1211843A1 Digital voice compression having a digitally controlled agc circuit and means for including the true gain in the compressed data |
| 09/23/1986 | CA1211834A1 Low noise catv converter |
| 09/23/1986 | CA1211719A1 Audio apparatus for vehicle |
| 09/16/1986 | US4612665 Graphic equalizer with spectrum analyzer and system thereof |
| 09/16/1986 | US4612662 Control circuit |
| 09/09/1986 | US4611344 Electronic volume control circuit |
| 09/09/1986 | US4611342 Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data |
| 09/09/1986 | US4611135 Analog switch circuit and signal attenuator employing an analog switch circuit |
| 09/03/1986 | EP0193049A2 Level control method for signal information |
| 09/02/1986 | US4610006 Automatic control system for acoustic logging |
| 08/27/1986 | EP0192257A2 Electronic resistance adjustment circuit and audio installation comprising it |
| 08/27/1986 | EP0192122A1 Audio amplifier for a motor car |
| 08/27/1986 | EP0192061A1 Device for automatic gain control in a TDMA receiver |
| 08/27/1986 | EP0191784A1 Optical receiver circuit. |
| 08/26/1986 | US4608636 Slew rate filter for logging cable signal pick-off |
| 08/26/1986 | US4608543 Controllable effective resistance and phase lock loop with controllable filter |
| 08/26/1986 | US4608542 Bandwidth controlled data amplifier |
| 08/26/1986 | US4608502 I2 L gate circuit arrangement having a switchable current source |
| 08/26/1986 | CA1210512A1 Apparatus for distinguishing between speech and certain other signals |
| 08/19/1986 | US4607390 Squelch arrangement for AM/FM radio receiver |
| 08/19/1986 | US4607234 Gain-controlled amplifier arrangement |
| 08/19/1986 | CA1210129A1 Echo sounding apparatus |
| 08/14/1986 | WO1986004754A1 Data muting method and apparatus for audio/digital communications systems |
| 08/12/1986 | US4606075 Automatic gain control responsive to coherent and incoherent signals |
| 08/12/1986 | US4605890 Synchro power amplifier and control circuit for automatically tuning an inductive load |
| 08/12/1986 | CA1209651A1 Logarithmic digitally variable gain controlled amplifier |
| 08/05/1986 | US4604589 High frequency circuit |
| 08/05/1986 | US4604586 Amplifier with current mirror circuit for controlling amplification temperature dependency |
| 07/30/1986 | EP0188842A2 Circuit arrangement for automatic gain control |
| 07/30/1986 | EP0188526A1 Self-calibrating signal strength detector |
| 07/29/1986 | CA1208711A2 Electronic gain-control arrangement |
| 07/23/1986 | EP0045801B1 Digital pseudo continuous tone detector |
| 07/22/1986 | US4602276 Digital signal level overload system |
| 07/22/1986 | US4602218 Automatic output control circuitry for RF power amplifiers with wide dynamic range |
| 07/15/1986 | US4600890 Demodulator comprising a phase-locked loop |