| Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745) |
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| 08/25/1987 | US4689806 In a communications receiver |
| 08/25/1987 | US4689803 Antenna tuning system and method |
| 08/18/1987 | US4688264 AM/FM receiver with automatic tuning system |
| 08/05/1987 | CN86108014A Receiver provided with an automatic frequency control loop |
| 08/04/1987 | US4685150 Tuning of a resonant circuit in a communications receiver |
| 08/04/1987 | CA1225138A1 Automatic frequency control for radar receiver |
| 07/21/1987 | CA1224540A1 Frequency offset correcting circuit |
| 07/15/1987 | EP0228433A1 Frequency dividing arrangements. |
| 07/07/1987 | US4679246 One-shot tuning circuit |
| 07/07/1987 | US4679245 Radio receiver |
| 06/30/1987 | US4677690 Baseband demodulator for FM and/or AM signals |
| 06/10/1987 | EP0224959A1 Receiver provided with an automatic frequency control loop |
| 06/02/1987 | US4670718 Frequency synthesizing circuit |
| 05/20/1987 | CN86203081U Automatic electronic tuning system |
| 05/13/1987 | EP0221189A1 Electronically tunable fm receiver |
| 05/12/1987 | CA1221779A1 Channel selector |
| 05/06/1987 | EP0220867A2 Apparatus for receiving satellite broadcast signals |
| 04/22/1987 | EP0219338A2 Digital color signal processing circuit |
| 04/15/1987 | EP0217906A1 Text receiver |
| 04/15/1987 | EP0217839A1 Circuit for automatic tuning of sharpness in fm receivers |
| 04/14/1987 | US4658438 Receiver for satellite broadcasting service |
| 03/26/1987 | DE3631640A1 Car stereo receiver |
| 03/25/1987 | EP0215490A2 A.F.C. system for broad-band FM receiver |
| 02/25/1987 | EP0211366A2 Mobile radio apparatus, such as a car radio or the like, in particular a VHF receiver |
| 02/03/1987 | US4641367 Receiver for FM signals with transmitter status code storage |
| 01/17/1987 | CN85102345A Integrated electric filter circuit |
| 01/15/1987 | WO1987000365A1 Frequency dividing arrangements |
| 12/30/1986 | US4633515 Emergency broadcast alert detector |
| 12/23/1986 | CA1215751A1 Phase lock loop circuit |
| 12/16/1986 | US4630118 Automatic frequency control circuit for a television signal receiving apparatus |
| 12/16/1986 | US4630001 For supplying a reactive load circuit |
| 11/25/1986 | US4625331 Automatic frequency control system or an SSB receiver |
| 11/20/1986 | EP0201681A2 Movable radio receiver with a delayed scanning start |
| 11/18/1986 | US4624014 Signal-seeking tuning system with a seaching mode activated by the user's operation of a manual band switch |
| 11/18/1986 | US4623838 Analog-digital conversion circuit apparatus connectable to a microcomputer for measuring electric voltage and current of a vibrator of an ultrasonic wave oscillator |
| 11/12/1986 | CA1213975A Television afc system useable with offset carrier frequencies |
| 11/06/1986 | WO1986006565A1 Electronically tunable fm receiver |
| 11/05/1986 | EP0199887A2 FM radio receiver |
| 10/29/1986 | CN86103137A Fm electronic tuner |
| 10/29/1986 | CN85100788A 滤波集成电路 Filter IC |
| 10/28/1986 | US4620315 Automatic frequency control circuit in a stereo FM radio receiver |
| 10/28/1986 | CA1213385A1 Tuning system with provisions for skipping nonpreferred tuning positions |
| 10/28/1986 | CA1213384A1 Automatic digital fine tuning system |
| 10/28/1986 | CA1213383A1 Pull-in range expanding circuit for digital automatic fine tuning |
| 10/23/1986 | WO1986006238A1 Text receiver |
| 09/25/1986 | WO1986005637A1 Circuit for automatic tuning of sharpness in fm receivers |
| 09/23/1986 | US4613865 Radiation source identification system |
| 09/23/1986 | CA1211873A1 Multifrequency scanning receiver with priority frequency monitoring |
| 08/27/1986 | EP0191938A2 Interference-induced switching method of radiosignals with the same modulation content |
| 08/19/1986 | US4607392 Circuit for improving the tuning behavior of a receiver frequency control loop |
| 08/05/1986 | US4604583 For use in demodulator |
| 08/05/1986 | US4604571 Circuit for the determination of voltage extrema |
| 07/29/1986 | US4603438 Tuning system with provisions for skipping nonpreferred tuning positions |
| 07/15/1986 | US4601061 Automatic frequency control circuit having an equalized closed loop frequency response |
| 07/15/1986 | US4601060 Automatic digital fine tuning system |
| 07/15/1986 | US4600924 Automatic frequency control for radar receiver |
| 07/08/1986 | US4599743 Baseband demodulator for FM and/or AM signals |
| 07/08/1986 | US4599652 Dual channel IF TV receiver with AFT derived from the picture carrier in the sound channel |
| 07/01/1986 | US4598422 Harmonic tuning system for radio receivers |
| 06/24/1986 | US4597106 AFT defeat arrangement |
| 06/24/1986 | US4596963 PLL with lock up detector and lock acquisition circuit |
| 06/17/1986 | US4596046 Split loop AFC system for a SSB receiver |
| 06/17/1986 | US4595910 Digital-to-analog converter useful in a television receiver |
| 06/10/1986 | US4594611 Station selecting method for television receiver |
| 06/03/1986 | US4593414 Programable channel selecting system |
| 05/28/1986 | EP0182742A1 Circuit for producing a criterion for reception |
| 05/28/1986 | EP0182549A1 Radio frequency synthesis |
| 05/28/1986 | EP0182049A2 Am/fm receiver with automatic tuning system |
| 05/27/1986 | US4592094 Receiver comprising a search tuning circuit having means for finding the tuning data of a search-tuned transmission after manual tuning |
| 05/27/1986 | US4592078 Up/down counter control circuit |
| 05/20/1986 | US4590611 Tuner for communications equipment |
| 04/30/1986 | EP0179620A2 Automatic fine tuning system |
| 04/30/1986 | EP0179394A2 Radio transmitter identification method, and radio receiver therefor |
| 04/22/1986 | US4584711 Steady state channel select |
| 04/22/1986 | US4584710 Coherent receiver phase and amplitude alignment circuit |
| 04/16/1986 | EP0178146A2 Improvements relating to radio receivers |
| 04/15/1986 | US4583244 Automatic frequency control for local oscillator used with an AM stereo decoder |
| 04/15/1986 | CA1203330A1 Digital aft system which is activated during vertical retrace intervals |
| 04/09/1986 | EP0176703A1 Intermediate frequency signal processing circuit |
| 04/08/1986 | US4581643 Double conversion television tuner with frequency response control provisions |
| 04/02/1986 | EP0176303A2 Automatic frequency and gain control circuit |
| 04/02/1986 | EP0176144A1 Television receiver comprising an automatic radiofrequency resonant circuit adjustment circuit |
| 04/01/1986 | US4580286 Noise activated mute for FM reception in an AM/FM radio receiver |
| 04/01/1986 | US4580285 Scanning AM radio with discriminator-driven-scan-stop-circuit |
| 03/11/1986 | US4575761 AFT arrangement for a double conversion tuner |
| 03/04/1986 | US4574308 FM Video receiver |
| 02/25/1986 | US4573210 Null initiated method and system for monitoring a priority channel |
| 01/14/1986 | CA1199434A1 Radio receiver of electronic tuning system |
| 01/14/1986 | CA1199377A1 Baseband demodulator for fm signals |
| 12/24/1985 | US4561112 Broadcast receiver with automatic broadcast station storage |
| 12/03/1985 | US4556988 Indoor unit of receiver for broadcasting satellite |
| 12/03/1985 | US4556987 Receiver comprising a search tuning circuit |
| 12/03/1985 | CA1197636A1 Automatic disabling of afc/aft controller during receiver circuit tuning |
| 12/03/1985 | CA1197573A1 Analog signal comparator using digital circuitry |
| 11/06/1985 | EP0160587A1 Frequency-regulating device for a gyromagnetic resonance filter |
| 11/05/1985 | US4551855 Radio communications system for detecting the coincidence of decoded information |
| 11/05/1985 | US4551690 Automatic tuning circuit for use in an ultrasonic apparatus |
| 10/15/1985 | US4547805 Television AFC system usable with offset carrier frequencies |
| 09/25/1985 | EP0155489A2 Automatic frequency control for radar receiver |
| 09/17/1985 | US4542533 Tuning system with automatic frequency control |