Methods and systems for managing and collecting impulse pay-per-view (ippv) data in smart card enabled television terminals
CA 2472599 A1 · Owner: Kuczynski-Brown, Jeffrey D. · Inventors: Kuczynski-Brown, Jeffrey D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and apparatus for managing and collecting impulse pay-per-view (IPPV) data in smart card enabled digital television terminals are provided. A headend controller sends security information to the terminal for use by the smart card. Authentication data based on the security information is computed by the smart card. The controller polls the terminal to retrieve the authentication data and current IPPV data from the smart card. Current IPPV data is validated by the controller based on the authentication data. Upon validation of the current IPPV data, updated IPPV data is sent from the controller to the smart card via the terminal. The present invention also enables a purchase …
Read the whole patent
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 January 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2025.
- 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.