Method and apparatus for electronic publishing
CA 1203616 A · Owner: Van Valkenburg, George · Inventors: Carlquist, John W.; Van Valkenburg, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides apparatus and methods for formatting and displaying video information having particular application to electronic publishing systems. A video signal which includes a plurality of fields of video information is inputted into an index generator. Alphanumeric characters which, include unique index numbers are generated and inserted into a portion of one or more fields of the video signal. The index numbers and other characters are generated in response to a clock signal, which in the present embodiment is provided by, synchronization signals extracted from the inputted video signal The index numbers and other characters are advanced decremented, or otherwise …
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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 April 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 2003.
- 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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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.