Apparatus and method using compressed codes for television program record scheduling
CA 2120255 C · Owner: Gemstar Development Corporation · Inventors: Kwoh, Daniel S.; Yuen, Henry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Encoded video recorder/player (44, 370 964, 991) timer (40) preprogramming , information (10) listed in a television calendar (Figure 8) allows a timer preprogramming feature on a video cassette recorder VCR (44, 370, 964, 991) to be programmed using a compressed code of as few as 1 to 8 digits which are decoded by a decoder (954) built into a television (48 950) to convert, the compressed code into channel date, time and length information. The compressed code indications associated with each television program can be printed in a television program calendar in advance. The user would use the television remote (956) or controls on the television (48, 950) to enter the code that …
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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
- Filed September 29, 1992 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2014.
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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.