Optical recording medium, recording/reproducing apparatus and recording/reproducing method
CA 2552132 C · Owner: Samsung Electronics Co. Ltd. · Inventors: Hwang, Sung-Hee; Ko, Jung-Wan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical recording medium including a user data area and an SA/DL area in which a replacement block to replace a defective block in the user data area and , information regarding a defect corresponding to the defective block is , recorded, wherein the information regarding the defect includes a consecutive defect list entry , including information regarding defects located in consecutive locations of the user , data area; an apparatus using the optical recording medium; and a method of using , the optical recording medium.
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 27, 2004 and granted March 22, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2024.
- 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.