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Expired Canadian patentCanada

Recording/reproducing apparatus for performing rmw for low, recording/reproducing method therefor, and information storage medium therefor

CA 2590041 C · Owner: Samsung Electronics Co. Ltd. · Inventors: Lee, Kyung-Geun; Ko, Jung-Wan; Hwang, Sung-Hee

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Abstract From the Canadian patent

Replacement data for updating data recorded on an information storage medium is recorded in an area for logical overwrite (LOW) replacement; replacement data for replacing a defect generated on the medium is recorded in an area for defect replacement; and, if a defect is generated in an original block recorded in a predetermined area of the medium during a read-modify-write (RMW) process for a LOW for at least partial data of an original block a , replacement block replacing the original block is recorded in the area for LOW replacement and a defect list (DFL) entry including location information of the original block and location information of the replacement block is generated to …

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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 12, 2005 and granted March 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 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.
FiledDecember 12, 2005
GrantedMarch 12, 2013
Term endedDecember 12, 2025
Patent numberCA 2590041 C
Classification (IPC)G11B20/12

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 12, 2005Patent grantedMarch 12, 2013Term endedDec 12, 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.