Patents
Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745)
07/1976
07/06/1976US3968325 Television receiver with noise immune AFC circuit
06/1976
06/29/1976US3967203 Signal seeking receiver stopping circuit
06/29/1976US3967057 Automatic tuning apparatus
06/22/1976US3965423 Automatic frequency control system
06/22/1976US3965336 Radio or television receiver with an automatic station finding arrangement
06/22/1976US3965288 Automatic tuning apparatus
06/08/1976US3962640 Frequency selection and control
06/08/1976US3962533 Television receiver
06/01/1976US3961267 Channel selecting control system for television tuner including unused channel skip system
06/01/1976US3961266 Channel seeking tuning system
06/01/1976US3961263 Bandstart detector system for a television tuning system
06/01/1976US3961262 FM receiver and demodulation circuit
06/01/1976US3961261 Crystalless scanning radio receiver
06/01/1976US3961255 Measurement bandwidth enhancement in phase lock loops
05/1976
05/25/1976US3959728 Local oscillation circuit for tuner having reduced inter-channel deviation in AFC sensitivity
05/18/1976US3958180 Varactor tuner frequency controller
05/11/1976US3956702 Band decoder for all-channel digital tuning system
05/04/1976US3955137 Adjustable frequency scanning signal processor
04/1976
04/27/1976US3953801 Receiver digital control system
04/13/1976US3950702 Circuits for detecting trigger signals for use in synthesizing type receivers
04/06/1976US3949312 Frequency scanning means and method
04/06/1976US3949164 Television signal detecting circuit
04/06/1976US3949158 Wide band aft circuit for television receiver
03/1976
03/30/1976US3947774 Signal seeking stopping circuit receiver
03/30/1976US3947772 AFC tuning circuit
03/23/1976US3946329 Electronic automatic frequency tuning system
03/23/1976US3946319 All electronic digital tuner system with memory
03/23/1976US3946148 Television receiver operable in exact or extended range tuning modes
03/16/1976US3944931 Multi-channel frequency converter having automatic control
03/16/1976US3944725 Wide band automatic frequency control circuit
03/09/1976US3943459 Tuning system for a microwave local oscillator
03/09/1976US3943449 Multi-speed ramp for a varactor tuning system
03/02/1976US3942171 Scanning system for digital-analog converter
03/02/1976US3942121 Digital tuning method and system
02/1976
02/24/1976US3940714 AFC circuit with improved sensitivity
02/24/1976US3940702 Automatically presetting channel selecting system
02/24/1976US3940697 Multiple band scanning radio
02/24/1976US3940554 Automatic frequency control device for television receiver
02/17/1976US3939427 Automatic fine tuning defeat circuit
02/03/1976US3936763 Null input OMEGA tracking filter system
02/03/1976US3936753 Digital automatic frequency control circuit
01/1976
01/20/1976US3934205 Frequency lock loop employing a gated frequency difference detector having positive, zero and negative threshold detectors
01/20/1976US3934191 Circuit arrangement for generating a stabilized direct voltage with superposition of a control voltage
01/13/1976US3932814 Heterodyne receiver system
01/06/1976US3931579 Digital signal seeking tuning system
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