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Expired Canadian patentCanada

Method and apparatus for storing a stream of video data on a storage medium

CA 2432170 C · Owner: Boyle, William B. · Inventors: Boyle, William B.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system for storing video data includes a receiver configured to receive a stream of video data that includes a sequence of original transport packets. Each original transport packet (18) has a first predetermined number of bytes including video data bytes. A first circuit is configured to add a second predetermined number of bytes (26) to each original transport packet to create a modified transport packet having a third predetermined number of bytes (24). A storage medium is addressable on sector boundaries wherein each sector has , a predetermined number of user data bytes different from the first predetermined number of bytes. The first byte in a modified transport packet …

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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 December 20, 2001 and granted May 3, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 2001
GrantedMay 3, 2011
Term endedDecember 20, 2021
Patent numberCA 2432170 C
Classification (IPC)H04N5/92 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedDec 20, 2001Patent grantedMay 3, 2011Term endedDec 20, 2021

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.