Response capacity management in interactive broadcast systems by periodic reconfiguration of response priorities
CA 2270739 C · Owner: Wink Communications, Inc. · Inventors: Travaille, Timothy V.; Brubeck, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method allow for the periodic re-configuring of broadcast receivers to control their storage of responses to interactive applications during a, polling period. A broadcast server maintains a database of interactive applications, each preferably associated with a program that will be broadcast. When the program, is broadcast, an interactive application is inserted into the broadcast feed and, delivered to a broadcast receiver such as a television set-top box. The broadcast, receiver includes a processor memory, and other hardware necessary to execute the, interactive application. When executed the interactive application generates a, response which is transmitted to a …
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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 April 29, 1999 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2021.
- 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.