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Expired Canadian patentCanada

Information storage medium, recording/reproducing apparatus, and recording/reproducing method

CA 2586986 C · Owner: Samsung Electronics Co. Ltd. · Inventors: Hwang, Sung-Hee; Ko, Jung-Wan

CIPO record

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Abstract From the Canadian patent

An information storage medium, a recording/reproducing apparatus and a recording/reproducing method are provided to increase data reproduction efficiency. The recording/reproducing apparatus includes: a write/read unit for recording data on an information storage medium and reading data from the medium; and a controller for controlling the write/read unit to record a replacement block by logical overwrite (LOW) for updating data recorded on the medium in a first area of the medium, record a replacement block for replacing a defect block generated on the medium in a second area of the medium and , record a second replacement block for replacement by defect of a first replacement …

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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 November 8, 2005 and granted February 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 2005
GrantedFebruary 28, 2012
Term endedNovember 8, 2025
Patent numberCA 2586986 C
Classification (IPC)G11B7/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 8, 2005Patent grantedFeb 28, 2012Term endedNov 8, 2025

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