Interactive television system for providing full motion synched compatible audio/visual displays
CA 1314323 C · Owner: Actv, Inc. · Inventors: Freeman, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interactive television system (10 10a) for providing, full motion synched compatible audio visual displays based on dynamic user selection (26) of a plurality of syllable synched compatible audio choices for a common full motion video frame presentation provided over a common television channel. Two or more audio channels are synched to a common video channel with, the video being compatible will all audio channels. The interactive programming is stored on video cassette (12 12a), or other storage media and the audio channels are either multiplexed into the video line or the existing audio channels and are provided to a control module (14 14a) which, demultiplexes the signal (16 16a) and …
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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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.