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Expired Canadian patentCanada

Video data retrieval method for use in video server environments that use striped disks

CA 2178376 C · Owner: Silberschatz, Abraham · Inventors: Rastogi, Rajeev; Silberschatz, Abraham; Ozden, Banu

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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 method for retrieving video data from a video server the video data having , been, stored on a plurality of disks based on a disk striping technique. In accordance with one, illustrative embodiment the method comprises the steps of retrieving a predetermined, number of bits from the plurality of disks in the video server and storing , that, predetermined number of bits in a buffer memory wherein the number of bits , retrieved and stored is based on the number of disks and on the capacity of the buffer memory. These steps, which together may illustratively constitute one round of the video retrieval, process, may be repeated until the entire video has been retrieved and for , example, …

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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 June 6, 1996 and granted March 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1996
GrantedMarch 21, 2000
Term endedJune 6, 2016
Patent numberCA 2178376 C
Classification (IPC)H04N5/85 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 6, 1996Patent grantedMarch 21, 2000Term endedJune 6, 2016

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