Method and apparatus for displaying television programs and an electronic program guide (epg)
CA 2777513 C · Owner: Rovi Guides, Inc. · Inventors: Kwoh, Daniel S.; Leung, Elsie Y.; Yuen, Henry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for navigating between a television viewing mode and an electronic program guide (EPG) mode includes a first memory storing a plurality of television program listings representing telecast programs. Each stored program listing includes an associated channel designation a second memory storing a last channel designation a tuner tuning to a television channel and a display screen displaying a television program in full screen format when in the television viewing mode and the plurality of television program listings and the last channel designation when in the EPG mode. The listing also includes an input receiving user selections and a processor coupled to the first memory second …
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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 March 14, 1997 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
- 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
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.