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)
12/1985
12/03/1985US4556990 Tuner
12/03/1985CA1197575A1 Digital gain control system
11/1985
11/26/1985US4555669 Noise reduction by linear interpolation using a single sample-and-hold circuit
11/26/1985CA1197320A1 Adaptive analog-to-digital conversion method and system
11/26/1985CA1197295A1 Nonintegrating receiver
11/13/1985EP0161027A2 Power control for radio transmitters
11/12/1985US4553257 Automatic sound volume control device
11/12/1985US4553105 Multistage linear amplifier for a wide range of input signal levels
11/12/1985US4553104 Method of compensating an amplifier system having a variable gain amplifier to achieve a constant overall system signal gain and an apparatus utilizing the same
11/06/1985EP0160324A2 Optical receiver
11/05/1985US4551688 Delay compensated automatic gain control
11/05/1985US4551685 Programmable gain feedback amplifier
10/1985
10/30/1985EP0159670A2 Radio communication device and method of controlling transmitter output power
10/29/1985US4550426 Method and means of detecting the presence of a signal representing voice and of compressing the level of the signal
10/29/1985US4550400 Remote digital volume control system
10/29/1985US4550265 Driver for voltage controlled attenuator
10/29/1985CA1196061A1 Sleep switch volume control
10/23/1985EP0159042A2 An apparatus for reducing noise in audio signals
10/22/1985US4549098 Device for generating a variable control signal
10/22/1985CA1195770A1 Digital agc arrangement
10/16/1985EP0158264A2 Light signal transmission apparatus
10/15/1985US4547902 Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit
10/15/1985US4547746 VSWR Tolerant linear power amplifier
10/15/1985US4547743 Variable resistance gain control integrated circuit
10/15/1985CA1195390A1 High frequency amplifier circuit
10/08/1985US4546326 Fast automatic gain control arrangement
10/08/1985US4546274 Non-linear integration circuit
10/02/1985EP0156398A2 FSK or FM burst signal generating apparatus
10/01/1985CA1194601A2 Circuit and method for controlling the spread of an amplitude distribution
09/1985
09/25/1985EP0155660A2 Fast fourier transform system and method
09/24/1985US4543537 Method of and arrangement for controlling the gain of an amplifier
09/24/1985US4543453 Electronic hearing aid control circuit
09/24/1985CA1194223A1 Apparatus for reproducing information from a track of a magnetic record carrier
09/17/1985US4542421 Muting circuit in combination with a tape recorder
09/17/1985US4542349 Digital controlled amplifier
09/17/1985US4542347 Demodulator circuit with integrated automatic gain control
09/17/1985CA1193723A1 Apparatus for optically scanning a disc-shaped record carrier
09/10/1985US4541122 Receiver including FET frequency mixer
09/10/1985US4541110 Circuit for automatic selection between speech and music sound signals
09/10/1985US4540974 Adaptive analog-to-digital converter
09/10/1985US4540953 Gain control circuit for obtaining a constant output signal amplitude by attenuating an input signal amplitude
09/10/1985US4540952 Nonintegrating receiver
09/10/1985US4540950 Wideband linear amplifier
09/10/1985US4540000 Signal conditioner for biological signals
09/04/1985EP0153719A2 Method and apparatus for controlling the gain of an amplifier system
09/03/1985US4539527 Noise reduction by linear interpolation using a dual function amplifier circuit
09/03/1985CA1192969A1 Amplifier incorporating gain distribution control for cascaded amplifying stages
09/02/1985EP0138901A4 Stabilized microwave power amplifier system.
08/1985
08/29/1985WO1985003814A1 Bipolar-mos current amplifier having active turn-off circuitry
08/28/1985EP0153264A1 Data broadcasting system, especially towards mobile stations
08/28/1985EP0152985A1 Gain-controlled amplifier arrangement
08/27/1985US4538300 Linear signal strength detector in AM radio
08/21/1985EP0152151A1 Broadband control amplifier
08/21/1985EP0151916A2 Automatic gain control circuit
08/20/1985US4536885 Distortion correcting AM stereo receiver with non-flat AGC
08/20/1985CA1192278A1 Radio frequency generator system
08/20/1985CA1192275A1 Circuit for amplifying and/or attenuating a signal
08/14/1985EP0151148A1 Transmitter with power amplifier control
08/13/1985US4535474 Audio ambience simulator
08/13/1985US4535301 High frequency amplifier circuit
08/13/1985US4535300 Extended range sample and hold circuit
08/13/1985US4535299 Compound floating point amplifier
08/07/1985EP0150880A2 Demodulator using phase-locked loop
07/1985
07/30/1985US4532636 Radio communications receivers
07/30/1985US4532482 Circuit for preventing malfunction of muting amplifier
07/30/1985US4532475 Impulse noise reduction by linear interpolation having a deemphasis characteristic
07/30/1985CA1191214A1 Automatic level control circuit
07/24/1985EP0149319A2 High frequency circuit
07/24/1985EP0149152A2 Circuit arrangement for a digital level control
07/24/1985EP0148879A1 Squelch circuit.
07/23/1985US4531234 Optimizing antenna interface for automobile radio receivers
07/23/1985US4531232 Radio receiver apparatus for vehicle
07/23/1985US4531229 Method and apparatus for improving binaural hearing
07/23/1985US4531097 High frequency amplifier
07/23/1985US4531095 Impulse noise reduction by linear interpolation having immunity to white noise
07/23/1985US4531089 Electric power detecting circuit and gain control circuit using the same
07/09/1985US4528696 Arrangement for providing signalling tones and volume control signals
07/09/1985US4528686 Fader circuit for vehicle sound system
07/09/1985US4528678 Nonlinear noise reduction apparatus with memory
07/09/1985US4528519 Automatic gain control
07/03/1985EP0147292A2 Signal conditioner for biological signals
07/02/1985CA1189918A1 Voltage controlled variable gain circuit
07/02/1985CA1189911A1 Carrier data operated squelch
07/02/1985CA1189910A1 Bit data operated squelch
07/01/1985EP0094420A4 Data muting method and apparatus for radio communications systems.
06/1985
06/26/1985EP0146355A2 Logarithmically linearly controlled variable gain amplifier
06/26/1985EP0145976A2 High speed multiplying digital to analog converter
06/25/1985US4525870 Automotive radio receiver with radio frequency interference elimination circuit
06/25/1985US4525867 Radio receiver
06/25/1985US4525856 Amplifier arrangement for acoustic signals, provided with means for suppressing (undersired) spurious signals
06/25/1985US4525636 Variable electronic impedance circuit
06/25/1985CA1189574A1 Amplitude limiter for am broadcast transmitter
06/19/1985EP0145428A2 Automatic control system for acoustic logging
06/19/1985EP0144839A2 Squelch signal generator capable of generating a squelch signal with a high reliability
06/12/1985EP0144143A2 Circuit arrangement for adjusting sound volume
06/11/1985US4523161 Programmable attenuator
06/11/1985US4523155 Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
06/05/1985EP0022866B1 Amplitude control circuits
06/04/1985US4521920 Method and an arrangement for increasing the dynamic range at the input stage of a receiver in an optical fibre information transmission system
06/04/1985US4521917 Noise blanking circuit and method
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