Tuning method
CA 1303261 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Tanaka, Yasushi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a tuning apparatus of frequency synthesizer system comprising an input circuit means including a channel switch and a shift switch, a microcomputer and a phaselocked loop circuit including a programmable divider a, method for selecting one of a plurality of television channels of different frequencies by the channel switch and adjusting the frequency of one of the television channels selected by the shift switch, which method comprises the steps of providing a first signal from the channel switch to the microcomputer, setting up the ratio of division of the programmable divider according to the first signal providing a second signal from the shift switch to the microcomputer, varying the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.