Patents
Patents for H03G 1 - Details of arrangements for controlling amplification (4,021)
11/1984
11/07/1984EP0124331A2 Remote control transmitter arrangement for one or more television devices
11/06/1984US4481674 Sleep switch volume control
10/1984
10/30/1984CA1177152A1 Television remote control system for selectively controlling a plurality of external apparatus
10/11/1984WO1984004008A1 Constant bandwidth automatic gain control system
09/1984
09/12/1984EP0118178A1 Offset balancing method and apparatus for a DC amplifier
09/11/1984US4471324 All NPN variably controlled amplifier
09/11/1984US4471320 Voltage controlled element
08/1984
08/28/1984US4468631 Amplitude control apparatus
08/22/1984EP0116492A1 Compensation device of the gain deviation with temperature of a hyperfrequency signal amplifier
08/21/1984US4467192 Optical receiver
08/14/1984US4466018 Image pickup apparatus with gain controlled output amplifier
08/14/1984CA1172710A1 Level detecting circuit
08/14/1984CA1172574A1 Gain control circuit
08/07/1984US4464781 Equalizer apparatus
08/07/1984US4464633 Amplifier incorporating gain distribution control for cascaded amplifying stages
08/07/1984US4464632 Volume control circuit
08/07/1984CA1172320A1 Bridge audio amplifier including low level fade control
07/1984
07/31/1984US4463383 Image pickup apparatus
07/24/1984CA1171473A1 Amplifier arrangement
07/10/1984US4459555 MOS Differential amplifier gain control circuit
07/10/1984CA1170731A1 Variable emitter degeneration gain-controlled amplifier
07/10/1984CA1170730A1 Television intermediate frequency amplifier with feedback stabilization
07/03/1984US4458210 Distortion compensated cross-coupled differential amplifier circuit
06/1984
06/27/1984EP0112115A1 Sensor communication system
06/26/1984US4456889 Dual-gate MESFET variable gain constant output power amplifier
06/26/1984US4456886 Control circuit for voltage controlled variable attenuator
06/19/1984US4455534 Multi-state control circuitry
06/12/1984US4454478 Gain-controlled amplifier
06/05/1984US4453091 Level detecting circuit
05/1984
05/29/1984US4451798 Gain-controlled amplifier
05/29/1984US4451796 Volume control apparatus
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
04/10/1984CA1165409A1 Variolosser for an automatic gain control circuit
04/03/1984US4441080 Amplifier with controlled gain
04/03/1984CA1164962A1 Amplifier arrangement whose overall gain is controllable by means of a control voltage
03/1984
03/27/1984CA1164350A1 Compander system
03/20/1984US4438529 TV Tuner circuit
03/13/1984US4437070 Amplifier arrangement whose overall gain is controllable by means of a control voltage
03/06/1984US4435685 Amplifier arrangement
02/1984
02/28/1984US4434380 Compensation for VCA OP amp errors
02/28/1984US4434325 Volume control for an audio apparatus
02/28/1984CA1163017A1 Apparatus and method for detecting crossmodulation distortion
02/15/1984EP0100408A2 Device for adjusting control magnitudes
02/01/1984EP0099464A1 High frequency amplifier
01/1984
01/31/1984US4429285 Frequency-controlled variable-gain amplifiers
01/17/1984US4426634 Variable resistance device
01/17/1984US4426625 Circuit for linearly gain controlling a differential amplifier
01/10/1984CA1160360A1 Gain-controlled amplifier using a controllable alternating-current resistance
12/1983
12/20/1983US4422051 Gain control circuit
12/07/1983EP0095774A2 A switching circuit operable as an amplifier and a muting circuit
11/1983
11/29/1983US4418424 Cable television transmission control system
11/29/1983CA1157921A1 Variable-gain amplifier stage equipped with field- effect transistors
11/22/1983CA1157536A1 Gain control systems
11/15/1983US4415864 Variable-gain amplifier stage equipped with field-effect transistors
11/01/1983US4413260 Remote-control system for coin-operated phonographs
11/01/1983US4413235 Low temperature coefficient logarithmic electronic gain controlled amplifier
10/1983
10/25/1983US4412182 Apparatus for controlling an operational characteristic of a controlled device in accordance with the position of a movable member
09/1983
09/20/1983US4405954 Radio frequency equalizer
09/20/1983US4405903 Variolosser for an automatic gain control circuit
09/20/1983CA1154110A1 Attenuator and control circuit therefor
09/13/1983US4404527 Bridge audio amplifier including low level fade control
09/07/1983EP0087602A2 Variable gain control circuit
09/06/1983US4403199 Gain control systems
08/1983
08/31/1983EP0087175A1 Circuit for electronically controlling amplification
08/17/1983EP0085872A1 Integrable differential amplifier
08/09/1983CA1151738A1 Circuit for converting single-ended input signals to a pair of differential output signals
08/03/1983EP0084731A2 Frequency response displays for graphic equalizers
08/02/1983US4396891 Gain control circuit
08/02/1983US4396890 Variable gain amplifier
07/1983
07/26/1983US4395643 Broadband circuit with rapidly variable resistor
07/05/1983US4392022 Television remote control system for selectively controlling a plurality of external apparatus
07/05/1983CA1149474A1 Circuit converting a pair of differential input signals to single-ended output signals
06/1983
06/28/1983CA1149028A1 Variable-gain differential amplifier
05/1983
05/24/1983US4385364 Electronic gain control circuit
05/24/1983US4385204 Single button control
05/24/1983CA1147062A1 Digital gain control apparatus
05/17/1983US4384309 Closed loop servo demodulator for positioning a servo head
05/17/1983CA1146633A1 Tuning and volume indicator
05/17/1983CA1146475A1 Control level displaying apparatus
04/1983
04/26/1983CA1145491A1 Rf amplifying system having image rejection
04/26/1983CA1145421A1 Gain controlled amplifier and pin diode for use therein
04/19/1983US4380739 Electronic differential controller
04/12/1983US4379995 Gain controlled amplifier
04/05/1983US4379269 RF Amplifier having automatic gate bias switching in response to band selection
03/1983
03/29/1983US4378528 Gain-controlled amplifier system
03/22/1983US4377792 Compander system
03/22/1983US4377789 Operational amplifier employing complementary field-effect transistors
03/08/1983CA1142608A1 Symmetrically gain controlled differential amplifier
02/1983
02/15/1983CA1141303A1 Method and system of controlling sound and effects devices by a film strip
02/09/1983EP0071594A1 Adjustment device for the level control of audio signals
02/01/1983US4371840 Gain control circuit for pulse width modulation amplifier
02/01/1983US4371750 Microphone and remote control system
01/1983
01/25/1983CA1140224A1 Voltage controlled attenuator
01/18/1983US4369414 High-frequency input circuit for two inputs
01/18/1983US4369411 Circuit for converting single-ended input signals to a pair of differential output signals
01/18/1983US4369410 Monolithically integrable transistor amplifier having gain control means
01/18/1983CA1139850A1 Amplifier arrangement with variable gain factor
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