Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
05/1984
05/29/1984US4451798 Gain-controlled amplifier
05/29/1984US4451797 AGC Controller for pulsed system
05/29/1984US4451796 Volume control apparatus
05/29/1984US4451795 Circuit arrangement with controllable transfer characteristic at higher frequencies
05/29/1984CA1168320A1 Television intermediate frequency amplifier
05/22/1984US4450573 Bit data operated squelch
05/22/1984US4450413 Automatic signal level control device
05/15/1984US4449120 Method for amplifying multiplexed signals through different gain amplification units for selecting an optimum gain signal and device therefore
05/15/1984US4449104 Circuit for controlling the output level of an electronic device
05/01/1984US4446441 Transient noise free type amplifier circuit
04/1984
04/25/1984EP0106738A2 AGC method and apparatus
04/25/1984EP0106408A2 Circuit arrangement for sound volume control
04/17/1984US4443770 Automatic level control circuit
04/17/1984CA1165828A1 Circuit arrangement comprising two cross-coupled differential amplifiers
04/10/1984US4442407 Two loop automatic level control for power amplifier
04/10/1984CA1165409A1 Variolosser for an automatic gain control circuit
04/03/1984US4441082 Switched capacitor automatic gain control loop
04/03/1984US4441080 Amplifier with controlled gain
04/03/1984US4441041 Circuit arrangement for generating a direct control voltage which is dependent on an alternating voltage
04/03/1984CA1165004A1 Controllable multiplying circuit including first and second transistors arranged in long-tailed pair configuration having coupled emitter electrodes
04/03/1984CA1164997A1 Television automatic gain-control system
04/03/1984CA1164962A1 Amplifier arrangement whose overall gain is controllable by means of a control voltage
03/1984
03/27/1984US4439864 Modem circuitry
03/27/1984US4439739 Circuit arrangement with electronically controllable transfer characteristic
03/27/1984CA1164537A2 Gain control systems
03/21/1984EP0103385A2 Circuit arrangement for reconstructing noise-affected signals
03/21/1984EP0102946A1 Gain regulation circuit.
03/20/1984US4438529 TV Tuner circuit
03/20/1984US4438410 Variable gain amplifier
03/20/1984US4438408 Signal attenuating apparatus
03/20/1984US4438354 Monolithic programmable gain-integrator stage
03/20/1984CA1164054A1 Radio transmitter having an output power control circuit
03/13/1984US4437070 Amplifier arrangement whose overall gain is controllable by means of a control voltage
03/07/1984EP0102174A2 Improvements in or relating to transimpedance amplifiers
03/06/1984US4435846 Automatic gain control of a single gate GaAs FET amplifier
03/06/1984US4435844 Remote control circuit
03/06/1984US4435833 Fade control circuit for auxiliary amplifier
03/06/1984US4435684 Video amplifier mute circuit
03/06/1984US4435679 For providing an output signal
03/06/1984US4435656 Phase inverter circuit
03/06/1984CA1163326A1 Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit
02/1984
02/29/1984EP0101469A1 A method and a device for the damping of transients
02/28/1984US4434439 Digital television AGC arrangement
02/28/1984US4434380 Compensation for VCA OP amp errors
02/28/1984US4434325 Volume control for an audio apparatus
02/21/1984US4433304 Automatic noise rejection for use in scanner and the like
02/21/1984US4433254 Level detecting circuit
02/21/1984CA1162484A1 High efficiency, light weight audio amplifier and power supply
02/15/1984EP0100408A2 Device for adjusting control magnitudes
02/14/1984US4431990 Selective call communication receiver
02/07/1984US4430753 Radio receiver
02/07/1984US4430742 Data muting method and apparatus for radio communications systems
02/07/1984US4430627 Amplitude controlled sine wave oscillator
02/07/1984US4430609 Signal transfer device having a transfer characteristic which is adjustable in steps
02/01/1984EP0099760A2 Circuit for reconstructing noise-affected signals
02/01/1984EP0099637A2 Method and system for gain selection
02/01/1984EP0099464A1 High frequency amplifier
01/1984
01/31/1984US4429285 Frequency-controlled variable-gain amplifiers
01/31/1984US4429279 Variable bandwidth filter
01/24/1984US4427949 Signal intercepting circuit
01/18/1984EP0098670A2 Tuner
01/17/1984US4426735 Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit
01/17/1984US4426625 Circuit for linearly gain controlling a differential amplifier
01/17/1984US4426624 Device and method for amplifying and sampling multiplexed signals
01/17/1984CA1160752A1 Programmable two-quadrant transconductance amplifier
01/17/1984CA1160726A1 Device for amplifying and sampling multiplex signals
01/17/1984CA1160574A1 Device for the processing of voice signals
01/11/1984EP0097999A1 Signal processing system comprising a signal source, a signal processing unit and connecting cables
01/10/1984CA1160360A1 Gain-controlled amplifier using a controllable alternating-current resistance
01/04/1984EP0097264A1 Two-way communication system between an implanted electric stimulator and an external control unit
01/04/1984EP0097201A1 Frequency selective amplifier with gain control
01/03/1984US4424494 Automatic gain control circuit
01/03/1984US4424440 Automatic photocell loading
01/03/1984CA1159945A1 Signal processing equipment for ultrasonic visualisation
12/1983
12/28/1983EP0096944A1 Circuit with several signal paths formed by active arrangements
12/27/1983CA1159564A1 Digital pseudo continuous tone detector
12/20/1983US4422051 Gain control circuit
12/20/1983US4422049 Gain control circuit
12/20/1983US4422047 Solid state autotune power amplifier
12/20/1983CA1159139A1 Device for amplifying and sampling analog signals
12/13/1983US4420694 Muting circuit
12/13/1983CA1158790A1 Gain control apparatus for digital telephone line circuits
12/07/1983EP0095774A2 A switching circuit operable as an amplifier and a muting circuit
12/06/1983US4419765 Signal absence detector
12/06/1983US4419541 Pulsive noise removing apparatus
12/06/1983CA1158317A1 Strong and weak signal preamplification system
11/1983
11/29/1983CA1157921A1 Variable-gain amplifier stage equipped with field- effect transistors
11/23/1983EP0094420A1 Data muting method and apparatus for radio communications systems.
11/22/1983US4417165 Muting circuit
11/22/1983CA1157536A1 Gain control systems
11/15/1983US4416024 Distortion reducing circuit in FM receiver
11/15/1983US4416023 Strong and weak signal preamplification system
11/15/1983US4415864 Variable-gain amplifier stage equipped with field-effect transistors
11/15/1983US4415803 Optical receiver with improved dynamic range
11/15/1983CA1157100A1 Digitally controlled wide range automatic gain control
11/09/1983EP0093651A1 Multiple-carrier receiver protected against jamming
11/08/1983US4414689 Squelch circuit
11/08/1983US4414639 Sampling network analyzer with sampling synchronization by means of phase-locked loop
11/08/1983US4414638 Sampling network analyzer with stored correction of gain errors
11/08/1983US4414534 Radio frequency detection circuitry having noise discrimination capability