Patent Yard Sign in
Expired Canadian patentCanada

Information storage medium having multi-angle data structure and apparatus therefor

CA 2675699 C · Owner: Chung, Hyun-Kwon · Inventors: Ko, Jung-Wan; Heo, Jung-Kwon; Chung, Hyun-Kwon

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An information storage medium which stores data structures supporting multi-angles includes clip AV streams for respective angle data of multi-angle motion picture data. An additional information for each clip AV stream clip information is recorded on a separate storage area from that of the clip AV streams. The clip information includes jumping-point information for jumping into another angle. Each of the clip AV streams may be recorded in a contiguous recording area or divided into smaller interleaved unites that are interleaved with units of the other clip AV streams.

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 December 16, 2003 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 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.
FiledDecember 16, 2003
GrantedJune 25, 2013
Term endedDecember 16, 2023
Patent numberCA 2675699 C
Classification (IPC)G11B27/19 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 16, 2003Patent grantedJune 25, 2013Term endedDec 16, 2023

Sources & verification

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