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Expired Canadian patentCanada

Information recording medium, device and method for recording information in information recording medium

CA 2522022 C · Owner: Panasonic Corporation · Inventors: Yahata, Hiroshi; Yagi, Tomotaka

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Provided is an information recording medium which achieves high speed conversion of a signal input externally from MPEG-TS to MPEG-PS complying with DVD standard. An apparatus and a method for recording information to the information recording medium are also provided. A constrained format which enables conversion from a first stream (for example, MPEG transport stream) to a second stream (for example, MPEG program stream) is provided. The constrained format defines that a presentation order of the video information including continuous complete data block starts at a top field (Pf) and ends at a bottom field (Pl). The continuous complete data block is included in a reference time …

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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 7, 2004 and granted June 12, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 2004
GrantedJune 12, 2012
Term endedApril 7, 2024
Patent numberCA 2522022 C
Classification (IPC)H04N5/92

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 7, 2004Patent grantedJune 12, 2012Term endedApril 7, 2024

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