Method and apparatus for establishing a servicing mode of an electronic apparatus
CA 1289652 C · Owner: Suematsu, Masayuki · Inventors: Suematsu, Masayuki; Komiya, Yoshinori; Suzuki, Masakazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
39-0100.2087, PATENT, ABSTRACT OF THE DISCLOSURE In controlling an electronic apparatus such as, a, color television receiver, of the type having signal processing circuits which are individually adjustable in accordance with respective control signals provided by a microcomputer or central processing unit (CPU) in response to data corresponding to predetermined or standardized conditions of the adjustable circuits and which are stored in a non-volatile memory along with a secret code operating, keys selectively actuable to provide input data to the CPU for representing an externally applied code and in a, servicing mode of the receiver, for rewriting the data in the memory and thereby …
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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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.