Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
07/1986
07/08/1986US4599743 Baseband demodulator for FM and/or AM signals
07/08/1986US4599574 Selectable gain instrumentation amplifier
07/02/1986EP0186401A2 Controllable effective resistance circuits
07/02/1986EP0185692A1 Process for reducing the noticeability of errors in a digital audio signal.
07/02/1986CA1207038A Automatic gain control circuit for burst signal communication system
07/01/1986US4598418 For long distance and humane transporting of livestock
07/01/1986US4598252 Variable gain power amplifier
06/1986
06/25/1986EP0185411A1 Switching device for suppressing a signal
06/24/1986CA1206559A1 Method of and apparatus for detecting change in the breakoff point of a droplet generation system
06/05/1986WO1986003353A1 Acoustic signal attenuator
05/1986
05/28/1986EP0182742A1 Circuit for producing a criterion for reception
05/27/1986US4592073 Burst signal transmission system
05/27/1986US4591855 Apparatus for controlling a plurality of current sources
05/27/1986US4591799 High power klystron amplifier for supplying a variable load
05/27/1986CA1205018A1 Digital dynamic range converter
05/22/1986WO1986003077A1 Automatic gain control amplifier circuit
05/21/1986EP0181439A2 Preset circuit for a control voltage
05/20/1986US4590613 Bipolar AGC with RF transistor DC bias point stabilization
05/20/1986US4590368 Digital gain adjuster circuit for photomultiplier tubes
05/14/1986EP0181146A2 Transimpedance amplifier circuit
05/14/1986EP0180969A2 Automatic level control circuit for an AD converter
05/13/1986US4589136 Circuit for suppressing amplitude peaks caused by stop consonants in an electroacoustic transmission system
05/06/1986CA1204173A1 Method and system for gain selection
04/1986
04/30/1986EP0179530A1 Noise-dependent volume control having a reduced sensitivity to speech signals
04/23/1986EP0178516A2 High-frequency transistor power transmitter
04/22/1986US4584714 Automotive radio receiver with radio frequency interference elimination circuit
04/22/1986US4584536 Balance control circuit
04/22/1986CA1203584A1 Electronic gain-control arrangement
04/15/1986US4583050 Gain control circuit
04/15/1986CA1203293A1 Transimpedance amplifiers
04/15/1986CA1203292A1 Switched capacitor automatic gain control loop
04/15/1986CA1203291A1 Linear amplifier circuits
04/08/1986US4581768 VHF tuner
04/08/1986US4581725 Method and system for gain selection
04/08/1986US4581589 Apparatus for avoiding clipping of amplifier
04/08/1986CA1203009A1 Fm/tv automatic gain control system
04/02/1986EP0176448A2 Detector of a light beam with a photodiode and bias control circuit
04/02/1986EP0176303A2 Automatic frequency and gain control circuit
04/01/1986US4580288 Receiver input circuit
04/01/1986US4580287 Radio receiver with logarithmic signal strength detector
03/1986
03/26/1986EP0175375A2 Telephone
03/26/1986EP0175058A2 Method and circuit for generating a D.C. control voltage
03/25/1986US4578648 Dynamic verification gate circuit
03/25/1986CA1202379A1 Output power control circuit for power amplifier
03/18/1986US4577234 Driver amplifier for an image display device
03/18/1986US4577161 Noise reduction by linear interpolation using a dual function amplifier circuit
03/11/1986CA1201797A1 Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer
03/11/1986CA1201776A1 Uhf rf amplifier and agc system
03/04/1986US4574390 Noise reduction for stereophonic FM signals by high-speed sampling and linear interpolation
03/04/1986US4574253 Broadband control amplifier
03/04/1986US4574252 Constant rise AGC device
03/04/1986US4574251 Logarithmic digitally variable gain controlled amplifier
03/04/1986US4574248 RF Power amplifier for use with VHF transceivers
03/04/1986US4574202 Rectifier circuit with attack time variable in response to an input signal level
03/04/1986CA1201518A1 Microprocessor controlled agc
02/1986
02/27/1986WO1986001354A1 Optical receiver circuit
02/26/1986EP0172704A2 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof
02/26/1986EP0172590A1 Noise detector
02/26/1986EP0172220A1 Bipolar-mos current amplifier having active turn-off circuitry
02/25/1986CA1201172A1 Distortion correcting am steroe with non-flat agc
02/19/1986EP0172042A1 Device for limiting the transmitting power of radio-wave transmitters
02/19/1986EP0171759A2 Signal-processing apparatus compensating the distortion in a transmitted or recorded signal
02/19/1986EP0171524A2 Device for controlling the level and the volume in an LF amplifier, and method for realising this device
02/18/1986CA1200935A1 Burst signal transmission system
02/18/1986CA1200851A1 Receiver including fet frequency mixer
02/11/1986US4570127 Automatic gain control circuit for burst signal communication system
02/05/1986EP0170321A1 Noise detector
02/04/1986CA1200312A1 Control arrangement for electronic appliance
01/1986
01/30/1986WO1986000769A1 Self-calibrating signal strength detector
01/29/1986EP0169605A2 Balance circuit arrangement for electrical reproduction devices, and balance control therefor
01/28/1986CA1199986A1 Constant bandwidth automatic gain control system
01/22/1986EP0168895A2 Hearing aid
01/21/1986US4566076 Method of attenuating a digital signal and device for carrying out said method
01/21/1986US4565974 Optical receiver circuit with active equalizer
01/14/1986US4564818 Transimpedance amplifier having an improved gain/bandwidth product
01/14/1986CA1199377A1 Baseband demodulator for fm signals
01/08/1986EP0166973A1 Differential amplifier
01/07/1986US4563775 Apparatus for controlling transmission output power
01/07/1986US4563670 High speed multiplying digital to analog converter
01/07/1986US4563655 Circuit for deriving a gain control voltage
01/07/1986CA1199091A1 Method and apparatus for evaluating and sorting sheets in a high speed manner
01/07/1986CA1199080A1 Audio loudness control system
01/02/1986EP0166543A2 Mobile sound field correcting device
01/02/1986EP0166317A2 Circuit for deriving a gain control (agc) voltage
12/1985
12/31/1985US4562591 Digital dynamic range converter
12/31/1985US4562407 Automatic regulation of the output power of an amplifier
12/31/1985US4562403 Symmetrical discriminator and demodulator
12/31/1985CA1198823A1 Digital automatic gain control circuit
12/24/1985US4560949 High speed AGC circuit
12/24/1985US4560838 Apparatus for integrating a plurality of audio systems
12/19/1985WO1985005743A1 Automatic gain control circuit
12/19/1985WO1985005723A1 Process for reducing the noticeability of errors in a digital audio signal
12/17/1985US4559503 Amplifier for correcting group time delay of electrical signals and an intermediate frequency amplifier stage for radio equipment comprising an amplifier of this kind
12/17/1985CA1198178A1 All npn vca
12/10/1985US4558460 Audio apparatus for vehicle
12/10/1985US4558289 Bias and AGC control of two RF amplifiers with a shared control element
12/10/1985US4558213 Pickup level control device for a system for reading out recorded information
12/04/1985EP0163545A2 Automatic gain and frequency characteristic control unit in audio device
12/04/1985EP0163461A2 Non biased push-pull amplifiers
12/04/1985EP0163409A2 Gain control in integrated circuits