Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 3 - Gain control in amplifiers or frequency changers
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
12/1988
12/06/1988CA1246150A1 Noise blanking signal generator for am radio
12/06/1988CA1246149A1 Agc voltage generator with automatic rate switching
12/01/1988WO1988009581A1 A nonvolatile nonlinear reprogrammable electronic potentiometer
11/1988
11/29/1988US4788508 Pop noise suppression circuit for audio amplifier
11/23/1988EP0292163A2 Automatic gain control apparatus for a video signal processor
11/22/1988CA1245307A1 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof
11/17/1988WO1988009064A1 Microwave absorber attenuator for linear sspa power control
11/16/1988CN88102688A Automatic gain control delay circuit for video signal processor
11/15/1988US4785418 In a signal processor
11/09/1988EP0290415A1 Sound surge detector for alerting headphone users
11/09/1988EP0290080A2 Television signal amplifying circuitry
11/09/1988CN87103070A Automatic gain control circuit for digital communication
11/08/1988US4783819 Automatically controlled amplifier arrangement
11/08/1988US4783818 Method of and means for adaptively filtering screeching noise caused by acoustic feedback
11/01/1988CA1243857A1 Light detector having a photodiode with bias control
10/1988
10/20/1988WO1988008227A1 Method and apparatus for improving voice intelligibility in high noise environments
10/19/1988EP0287524A2 Mixer dynamic control
10/18/1988US4779055 Device for amplifying and sampling high dynamic signals
10/11/1988US4777529 Auditory subliminal programming system
10/04/1988US4776040 Superheterodyne receiver
10/04/1988US4775988 Method for rapid gain acquisition in a modem receiver
10/04/1988CA1242767A1 Automatic frequency and gain control circuit
09/1988
09/27/1988US4774474 Device for amplifying and sampling multiplexed analog signals
09/21/1988EP0283299A2 Radio receiver
09/21/1988EP0282801A1 Controlling the multiplication factor of avalanche photodiodes in optical receivers
09/20/1988US4773088 Telephone amplifier with switchable gain control
09/20/1988CA1242269A1 Muting circuit
09/13/1988US4771472 Method and apparatus for improving voice intelligibility in high noise environments
09/13/1988US4771192 Digital clip and gain circuit
09/07/1988EP0281416A2 Electronic control of communication system
09/07/1988EP0281117A2 Pop noise suppression circuit for audio amplifier
08/1988
08/31/1988EP0280381A1 Anti-Larsen effect gain control circuit in a telephone amplifier
08/31/1988EP0280318A2 Radio receiver with a received input level monitoring circuit
08/23/1988US4766559 For providing an analog signal input
08/17/1988EP0277978A1 Adaptive gain control amplifier
08/16/1988US4764811 Picture signal processing circuit
08/16/1988US4764732 Switchable mode amplifier for wide dynamic range
08/16/1988US4764717 Touch-sensitive potentiometer for operator control panel
08/10/1988EP0277798A2 Speaker Driver
08/09/1988US4763082 Selectable tuner preamplifier
08/02/1988US4761829 Adaptive signal strength and/or ambient noise driven audio shaping system
08/02/1988US4761828 Radio receiver
08/02/1988US4761816 Digital level detecting circuit
08/02/1988US4761687 Automatic gain control delay circuit for a video signal processor
08/02/1988CA1240005A1 Rf input drive saturation control loop
07/1988
07/27/1988EP0094420B1 Data muting method and apparatus for radio communications systems
07/26/1988US4760347 Controlled-output amplifier and power detector therefor
07/19/1988US4758793 Detector log video amplifier
07/14/1988WO1988005226A1 Radio receiver speech amplifier circuit
07/12/1988US4757502 Automatic gain control method and circuit for a time division multiple access receiver
07/12/1988US4757276 Signal-processing circuit having a field-effect MOSFET and bipolar transistors
06/1988
06/30/1988WO1988004867A1 A method and an arrangement for increasing the dynamic range at an input stage of an optical receiver
06/29/1988EP0272726A1 Device for demodulating a frequencymodulated signal
06/28/1988US4754486 Motorcycle stereo audio system with VOX intercom
06/28/1988US4754233 Low noise ultra high frequency amplifier having automatic gain control
06/28/1988US4754232 Amplification gain adjusting circuit
06/28/1988US4754231 Automatic control circuitry for a signal power amplifier
06/28/1988US4754224 Circuit arrangement for converting an input voltage into a proportional output signal
06/22/1988EP0272161A1 Method and circuit for the linearization of the transfer function of a two-port by digital error samples, particularly of an LF two-port with an asymmetric transfer function
06/22/1988EP0272106A2 Constant phase gain control circuit
06/22/1988EP0271953A2 Gain-controlled amplifier
06/22/1988EP0271938A1 Automatic gain-controlled amplifier circuit
06/22/1988EP0271936A1 Analog-to-digital converter with automatic gain control
06/22/1988CN85102062B Wide band controlled amplifier
06/21/1988US4752960 Audio processing circuit
06/21/1988CA1238367A1 Device for limiting the power transmission of radiowave transmitters
06/14/1988US4751577 Gain control circuit
06/14/1988US4751472 High frequency amplifier
06/09/1988DE3640969A1 Arrangement for linearising a transmitter output stage
06/07/1988US4750207 Hearing aid noise suppression system
06/07/1988US4750061 Amplitude limiter circuit
05/1988
05/31/1988US4748688 Electromagnetic wave receiver
05/24/1988US4747159 For converting video and audio signals to modulated signal outputs
05/24/1988US4747144 Amplifier with automatic inhibition of acoustic feedback
05/24/1988US4747065 Automatic gain control in a digital signal processor
05/24/1988US4746876 Attenuator control arrangements
05/24/1988US4746874 Circuit layout for signal amplification
05/24/1988US4746873 FM demodulators
05/24/1988CA1237173A1 Constant gain signal amplifier
05/19/1988DE3638480A1 Sound transducer device with distance-dependent level influence
05/18/1988EP0267887A1 Output stage with automatic level control for power line signalling
05/18/1988EP0267553A2 Digital clip and gain circuit
05/17/1988CA1236891A1 Amplifier arrangement
05/17/1988CA1236890A1 Amplifier arrangement
05/17/1988CA1236889A1 Amplifier arrangement
05/10/1988US4743863 Device to increase the dynamic ratio of an amplifier circuit, especially that of an on-board MLS receiver
05/10/1988CA1236406A1 Fader arrangement in electrical reproducing apparatus and fader control for such an arrangement
05/04/1988EP0266159A2 Digital muting circuit
05/03/1988US4742575 Light signal transmission/reception system
05/03/1988US4742565 Radio receiver with field intensity detector
05/03/1988US4742310 Automatic sound volume controlling device for use in automotive vehicle
04/1988
04/28/1988DE3249861C2 Control device for controlling the gain of an amplifier
04/26/1988US4740966 Analog input circuit for microcontroller apparatus
04/20/1988EP0264171A2 Gain selectable amplifier with resonance compensation
04/20/1988EP0138901B1 Stabilized microwave power amplifier system
04/19/1988US4739307 Multichannel predictive gain amplifier system
04/19/1988US4739283 Variable transient response control for linear integrated-circuit high-frequency amplifiers
04/19/1988US4739268 RF pulse control system for a magnetic resonance imaging transmitter
04/13/1988EP0263177A1 Audio mixer system and gain circuit therefor
04/12/1988US4737733 Overdrive control of FET power amplifier
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