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Patent Searching and Data


Title:
MEDIA RECORD/PLAY DEVICE AND MEDIA RECORD/PLAY METHOD
Document Type and Number:
WIPO Patent Application WO/2011/099182
Kind Code:
A1
Abstract:
When a replacement region administration method that uses NAPs of replacement regions upon multisession media is applied to a replacement region administration method of replacement regions upon rewritable media, in order to alleviate interruptions in recording due to excessive retries in the replacement process, as well as unnecessary conversion processing within a record/play device, the NAPs are updated in the process of initializing the media or the process of replacement thereupon such that defective blocks within the replacement region that are logged as Unusable Cluster or Usable Cluster Type 2 entries on the DFL are not denoted.

Inventors:
AKAHOSHI KENJI (JP)
Application Number:
PCT/JP2010/061864
Publication Date:
August 18, 2011
Filing Date:
July 14, 2010
Export Citation:
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Assignee:
HITACHI CONSUMER ELECTRONICS (JP)
AKAHOSHI KENJI (JP)
International Classes:
G11B20/12
Foreign References:
JPH0287370A1990-03-28
JP2000322835A2000-11-24
JP2009517795A2009-04-30
JP2010028393A2010-02-04
JP2009517795A2009-04-30
JP2009245586A2009-10-22
Other References:
"DVD-RAM Technology", 2000, TRICEPS CO.
See also references of EP 2535897A4
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)
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Claims: