Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745) |
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09/17/1985 | CA1193771A1 Tuning circuit incorporating a frequency synthesizer circuit |
09/10/1985 | US4541110 Circuit for automatic selection between speech and music sound signals |
09/10/1985 | CA1193320A1 Device for detecting the optimum anode load impedance of a tube transmitter in a high frequency transmission chain |
09/03/1985 | US4539712 Delay circuit |
08/27/1985 | US4538300 Linear signal strength detector in AM radio |
08/13/1985 | CA1191976A1 Phase locked loop tuning control system |
08/07/1985 | EP0150297A2 Method for the identification of radio transmitters and radio apparatus therefor |
08/06/1985 | US4533880 Tuning circuit with frequency synthesizer using d/a converter |
07/24/1985 | EP0149117A2 Method for the automatic search of a transmitter and searching receiver for the realisation of this method |
07/17/1985 | EP0148389A2 Tuning system for a television receiver |
07/09/1985 | USRE31943 Multichannel coherent receiver |
07/09/1985 | US4528698 Tuning system for RF receiver |
07/02/1985 | US4527281 Auto-scan changeover system for two-band radio receiver employing PLL frequency synthesizers |
06/25/1985 | US4525866 System for tuning a television receiver |
06/25/1985 | US4525864 Device for generating a tuning frequency set command signal of a tuner system |
06/25/1985 | US4525790 Method for oscillating ultrasonic waves and a microcomputer's built-in ultrasonic wave oscillator circuitry |
06/11/1985 | US4523190 Switching system |
06/11/1985 | CA1188742A1 Fm receiver with subcarrier decoding circuit |
05/28/1985 | CA1187944A1 Spectrum surveillance receiver system |
04/23/1985 | US4513443 Radio receiver suitable for use in a spaced carrier area coverage system |
04/16/1985 | US4511923 Method for tuning the input stage of a receiver to a desired receiving frequency and circuit arrangement for carrying out the method |
04/16/1985 | US4511869 Radio circuit tuned by adjustably deforming an inductance coil |
04/09/1985 | CA1185359A1 Aft lockout prevention system |
04/03/1985 | EP0135970A2 Receiver comprising a search tuning circuit |
04/02/1985 | US4509204 AM Radio stop detector |
04/02/1985 | US4509203 Auto tuning receiver with a tuning information memory |
03/19/1985 | US4506227 Mass spectrometer |
03/12/1985 | US4504973 Electromagnetic wave receiver system |
03/06/1985 | EP0133730A2 Receiver circuit |
03/05/1985 | US4503465 Analog signal comparator using digital circuitry |
02/19/1985 | US4501020 Spectrum surveillance receiver system |
01/29/1985 | CA1181879A1 Electronic tuning radio receiver |
01/29/1985 | CA1181878A1 Channel selection system for an electronic tuner |
01/22/1985 | US4495651 Broadcast receiver comprising an entirely electronic control device |
01/22/1985 | US4495650 Electronic tuning type radio receivers |
01/15/1985 | US4494238 Multiple channel data link system |
01/08/1985 | US4493102 Process and apparatus for alternately switching radio signals over respective audio channels |
01/01/1985 | US4491976 Wide-band tuner having a temperature-compensated microstrip resonator arrangement |
01/01/1985 | US4491975 Radio receiver of electronic tuning system having automatic presetting circuit |
12/27/1984 | CA1180139A Tuner apparatus |
12/27/1984 | CA1180054A Double phase lock loop arrangement |
12/18/1984 | US4489413 Apparatus for controlling the receive and transmit frequency of a transceiver |
11/27/1984 | US4485404 Digital aft system which is activated during vertical retrace intervals |
11/21/1984 | EP0125717A1 Broadcast receiver with automatic broadcast station storage |
11/20/1984 | US4484356 Apparatus and method for acquiring and processing radio signals received at different frequencies |
11/20/1984 | US4484291 Comparison circuit for determining the statistical equality of two analog signals |
11/20/1984 | US4484221 Shared counter arrangement for a digital frequency locked loop tuning system for selectively measuring the frequencies of the LO and IF signals |
11/07/1984 | EP0124332A2 A double conversion tuner |
10/23/1984 | US4479255 Apparatus for acquiring and collecting radio signals coming from a plurality of stations |
10/23/1984 | US4479249 Apparatus for collecting and processing messages transmitted at different signal frequencies |
10/23/1984 | US4479248 Frequency synthesized tuning system using a microprocessor |
10/23/1984 | CA1176767A1 Receiver provided with a frequency synthesizer capable of storing fine tuning information |
10/23/1984 | CA1176718A1 Amplifier |
10/09/1984 | US4476585 Baseband demodulator for FM signals |
10/09/1984 | US4476584 Digital frequency lock tuning system |
10/09/1984 | US4476583 Electronic tracking for tuners |
10/09/1984 | US4476581 FM Receiver with subcarrier decoding circuit |
10/09/1984 | US4476579 Electronic tuning radio receiver |
10/09/1984 | US4476578 Device for detecting the optimum anode load impedance of a tube transmitter in a high frequency transmission chain |
10/02/1984 | CA1175586A1 Television frequency synthesizer for nonstandard frequency carriers |
10/02/1984 | CA1175491A1 Phase locked loop tuning system including a prescaler conditioned to oscillate at an out-of-band frequency |
09/26/1984 | EP0119561A2 Method of tuning the resonant circuits of a radio receiver |
09/05/1984 | EP0117499A2 Circuit arrangement for measuring and detecting a maximum voltage output |
08/22/1984 | EP0116350A1 Tunig unit for communication apparatus |
08/16/1984 | WO1984003184A1 Tuning unit for communication system |
08/14/1984 | US4466128 Automatically centered pulsed FM receiver |
08/14/1984 | US4466127 Entry apparatus of digital value in memory |
07/31/1984 | CA1171911A1 Signal detector circuit |
07/24/1984 | US4462009 For filtering signals between a signal source and a load |
07/24/1984 | CA1171464A1 Receiver having a search tuning circuit |
07/17/1984 | US4461037 Automatic tuning system for television receiver |
07/17/1984 | US4461034 Unlocking attenuator for automatic tuning receiver |
07/03/1984 | CA1170354A1 Aft circuit |
06/12/1984 | US4454484 Phase-locked loop including an amplifier circuit arrangement |
06/05/1984 | US4453136 AFC System for controlling an oscillator according to an input frequency |
05/29/1984 | US4451850 Channel selecting device |
05/29/1984 | US4451792 Auto-tuned frequency discriminator |
05/22/1984 | US4450588 Tuning system for a high frequency receiver utilizing a controllable inductor |
05/22/1984 | US4450587 Tuning arrangement for providing relatively uniform automatic fine tuning sensitivity |
05/22/1984 | US4450586 Automatic tuning device for FM receiver |
05/22/1984 | US4450518 Control system for adjusting a physical quantity |
04/25/1984 | EP0105932A1 Program-selecting device |
04/18/1984 | EP0105378A1 Up/down counting arrangements |
04/10/1984 | US4442413 Television receiver phase locked loop tuning arrangement |
04/04/1984 | EP0104688A1 Receiver comprising a search tuning circuit |
04/03/1984 | CA1165023A1 Mechanical tuner with microphonics elimination circuitry |
03/27/1984 | US4439787 AFT Circuit |
03/27/1984 | CA1164571A1 Digital-to-analog converter useful in a television receiver |
03/20/1984 | US4438528 Channel selection system for an electronic tuner |
03/20/1984 | US4438412 In a circuit arrangement |
01/31/1984 | US4429415 Signal-seeking tuning system with signal loss protection for a television receiver |
01/24/1984 | CA1161167A1 Setting circuit |
01/24/1984 | CA1161117A1 Converter circuit for television signals |
01/18/1984 | EP0098634A1 Receiver for FM-signals with transmitter status code storage |
01/17/1984 | US4426734 Arrangement useful in a phase locked loop tuning control system for selectively applying an aft voltage in a manner to improve loop stability |
01/03/1984 | CA1159915A1 Adjustable and elective electrical filters |
12/07/1983 | EP0095564A1 Mobile broadcast receiver, such as a car radio or the like |
12/06/1983 | US4419767 Automatic digital control device for exact frequency tuning of a receiver |
12/06/1983 | US4419639 Key assembly |
12/06/1983 | CA1158372A1 Channel identification apparatus useful in a multiband sweep type turning system |