Device and method for recording information

Details Device and method for recording information Device and method for recording information

2004-07-14

2010-06-01

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S710000, C714S723000

Reexamination Certificate

active

07730348

ABSTRACT:
A device records information in blocks having logical addresses at a physical address in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information, which includes defect entries indicating locations for replacing defective physical addresses. A read-only state of the record carrier is obtainable via a no-replacement state indicated by substantially none of the defect entries being free for use. The device has a read-only unit for setting the record carrier to the read-only state by reading original replacement information indicating a writable state, storing the original replacement information in a hidden area, and writing defect management information that is modified to the no-replacement state. The record carrier may be re-opened by retrieving the original replacement information from the hidden area.

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ISR, the Written Opinion of the International Searching Authority.
ISR Publication, International Publication No. WO 2005/008655A3.

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