| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
|---|
| 04/12/1988 | US4737668 Circuit arrangement for reducing the settling time of logarithmic amplifiers |
| 04/07/1988 | WO1988002581A1 Adaptive correction of dc error transients |
| 04/06/1988 | EP0262728A1 Preamplifier for an optical receiver |
| 04/05/1988 | US4736163 Circuit for detecting and suppressing pulse-shaped interferences |
| 03/30/1988 | EP0261967A2 Automatic electrical power control circuit |
| 03/30/1988 | EP0261954A2 Digital signal gain control circuitry |
| 03/30/1988 | EP0261739A1 Control amplifier |
| 03/24/1988 | WO1988002198A1 Retrofit remote control apparatus |
| 03/22/1988 | US4733234 Remote calibrated power source system and method |
| 03/15/1988 | US4731873 Squelch trigger circuit |
| 03/15/1988 | US4731868 Circuitry in a scanning receiver for speeding up the generation of a reception or non-reception criterion |
| 03/15/1988 | US4731851 Digital signal gain control circuitry for varying digital signals in substantially equal db steps |
| 03/15/1988 | US4731653 Multi-channel, controlled amplification factor electronic amplifier construction, particularly for color TV contrast adjustment |
| 03/15/1988 | US4731590 Circuits with multiple controlled gain elements |
| 03/15/1988 | US4731588 Gain selectable amplifier with resonance compensation |
| 03/15/1988 | US4731529 Light measuring circuit having circuitry for bypassing a low frequency component in the output of a photoelectric conversion element |
| 03/08/1988 | US4730114 Circuit arrangement for electronically generating a resistor setting and audio system based thereon |
| 03/03/1988 | DE3628530A1 Circuit arrangement for volume control of broadcast receivers and antitheft protection in motor vehicles |
| 03/02/1988 | EP0257346A2 Proportional automatic gain control |
| 03/01/1988 | US4729129 VSWR protection circuit apparatus |
| 03/01/1988 | US4729110 Correction of offset and gain errors in RF receivers |
| 02/25/1988 | WO1988001453A1 Adaptive gain control amplifier |
| 02/24/1988 | EP0256099A1 A method for automatic gain control of a signal. |
| 02/24/1988 | CN87103771A Amplifier arrangement |
| 02/23/1988 | US4727580 Radio receiver |
| 02/23/1988 | US4727335 Gain-controlled amplifier |
| 02/23/1988 | US4727334 Voltage-controlled circuit |
| 02/23/1988 | CA1233204A1 Automatic output control circuitry for rf power amplifiers with wide dynamic range |
| 02/18/1988 | DE3627002A1 Method and circuit arrangement for acoustically compensating for the environmental noise in headphone reception |
| 02/17/1988 | EP0255927A2 Switchable tuner-preamplifier |
| 02/16/1988 | US4725950 Marine seismic signal processor with D.C. offset compensation method |
| 02/16/1988 | US4725789 Circuit arrangement for a low-noise audio frequency source |
| 02/16/1988 | CA1232949A1 System for broadcasting of data, particularly to mobile stations |
| 02/09/1988 | US4724545 Squelch detecting circuit with squelch start determining means |
| 02/09/1988 | US4724398 Gain-controlled amplifier |
| 02/09/1988 | US4724337 Automatic gain control detection circuit |
| 02/03/1988 | EP0255274A2 Gain control circuits |
| 02/02/1988 | US4723319 Signal seeking radio with sensitivity reduction responsive to ambient light related parameter |
| 01/27/1988 | EP0253902A1 Noise reduction apparatus and method |
| 01/26/1988 | US4721923 Radio receiver speech amplifier circuit |
| 01/20/1988 | EP0253545A2 Signal measurement |
| 01/13/1988 | EP0252149A1 Traveling wave tube drive controller. |
| 01/13/1988 | EP0252089A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier. |
| 01/07/1988 | EP0251690A2 Circuits with multiple controlled gain elements |
| 01/07/1988 | EP0251530A2 Improvements relating to amplifier gain control circuit arrangements |
| 01/05/1988 | US4718119 AGC circuit including a precision voltage clamp and method |
| 01/05/1988 | US4718099 Automatic gain control for hearing aid |
| 01/05/1988 | US4718086 AGC in sound channel of system for processing a scrambled video signal |
| 12/29/1987 | US4716307 Regulated power supply for semiconductor chips with compensation for changes in electrical characteristics or chips and in external power supply |
| 12/29/1987 | CA1230926A1 Radio communication device and method of controlling transmitter output power |
| 12/22/1987 | US4715065 Apparatus for distinguishing between speech and certain other signals |
| 12/22/1987 | US4714828 Optoelectric transducer |
| 12/15/1987 | US4713620 Dual signal amplitude modifying and combining apparatus |
| 12/10/1987 | DE3636865A1 Arrangement for linearisation of an output stage |
| 12/10/1987 | DE3618873A1 Circuit arrangement for controlling the amplitude of a television signal |
| 12/09/1987 | EP0248425A2 Emitter with a transistorized push-pull output stage |
| 12/02/1987 | EP0247666A1 Amplifier arrangement |
| 12/01/1987 | US4710772 Log magnitude pulse interference detection for a radar system |
| 12/01/1987 | CA1229799A1 Apparatus for reducing noise in audio signals |
| 11/24/1987 | US4709404 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof |
| 11/24/1987 | US4709215 Traveling wave tube drive controller |
| 11/19/1987 | DE3616323A1 Muting for a digital receiver |
| 11/19/1987 | DE3615981A1 System for the parameter-programmable processing of audio signals in combination with a programmable switching matrix, for use in the field of analog and digital electronic processing of audio signals |
| 11/18/1987 | CN87102989A 中文键盘 Chinese Keyboard |
| 11/17/1987 | CA1229412A1 Stabilized microwave power amplifier system |
| 11/10/1987 | US4706294 Audio control device |
| 11/10/1987 | US4706262 FSK or FM burst signal generating apparatus |
| 11/10/1987 | US4706039 Amplifier arrangement |
| 11/10/1987 | US4706035 High efficiency amplifier having a bootstrap capacitor |
| 11/04/1987 | EP0243733A2 Method and system for the regulation of a single side band up-converter |
| 11/03/1987 | US4704738 Transistor amplifier and mixer input stage for a radio receiver |
| 11/03/1987 | US4704736 Method and apparatus for reducing interference in broadcast receiver |
| 11/03/1987 | US4704584 Instantaneous floating point amplifier |
| 10/28/1987 | EP0242479A2 Precision remotely-switched attenuator |
| 10/28/1987 | EP0242444A2 Mobile radio receiver |
| 10/27/1987 | US4703507 Noise reduction system |
| 10/27/1987 | US4703501 Sound multiplex receiver |
| 10/27/1987 | CA1228668A1 Digital signal amplitude control apparatus |
| 10/22/1987 | WO1987006404A1 Audio mixer system and gain circuit therefor |
| 10/21/1987 | EP0241742A2 Remote calibrated power source system and method |
| 10/20/1987 | US4701958 Control circuit |
| 10/20/1987 | US4701715 Preceding value holding gate circuit for eliminating pulsive noises |
| 10/14/1987 | EP0240798A1 Hearing aid noise suppression system |
| 10/14/1987 | EP0102946B1 Gain regulation circuit |
| 10/13/1987 | CA1228123A1 Radio receiver with field intensity detector |
| 10/08/1987 | WO1987006072A1 Fm receiver with noise suppression during rayleigh faded received signals |
| 10/08/1987 | DE3627320C1 Loudspeaker controlled with respect to the radiated sound pressure |
| 10/07/1987 | EP0239696A2 Linearity correcting control circuit for tunable delay line |
| 10/06/1987 | US4698637 Device for pulse modulation automatic control |
| 09/30/1987 | EP0239467A1 Transmission power control apparatus in a radio communication transmitter-receiver station |
| 09/23/1987 | EP0238286A2 Automatic gain control apparatus |
| 09/22/1987 | US4696032 Voice switched gain system |
| 09/22/1987 | US4695886 Automatic leveling circuit for a composite video signal |
| 09/22/1987 | US4695806 Precision remotely-switched attenuator |
| 09/17/1987 | DE3607688A1 Receiver (reception module) for an optical communications path |
| 09/16/1987 | EP0237203A2 Hearing aid circuit |
| 09/15/1987 | US4694498 Automatic sound field correcting system |
| 09/15/1987 | US4694497 Automotive multi-speaker audio system with automatic echo-control feature |
| 09/10/1987 | DE3606702A1 Controllable RF amplifier having a linear control characteristic |
| 09/10/1987 | DE3606701A1 Controllable RF amplifier having a linear control characteristic |