Power failure recovery mechanism for a recording and...

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

Reexamination Certificate

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Details

C714S024000

Reexamination Certificate

active

07017078

ABSTRACT:
The present invention relates to a power failure recovery mechanism for a recording and reproducing device such as a DVD player, wherein a recording indication information and a recovery pointer information is written in a non-volatile random access memory, while a recovery information is recorded on a record carrier such as a recordable optical disc. At a power-up operation, the recording indication information is used to determine a power failure and the pointer information is used to reproduce the recovery information in case of a determined power failure. Thus, the pointer information indicates the location of incremental recovery data structures on the record carrier, such that a recovery can be achieved after a power failure without requiring a restart of the entire recording.

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Patent Abstracts Of Japan, Hosaka Yoshiaki, Recording And Reproducing Device, Publication No. 11167787, Jun. 22, 1999, Application No. 09334267, Apr. 12, 1997.
Patent Abstracts Of Japan, Yamazaki Yutaka, Disk Recording And Reproducing Device, Publication No. 08077749, Mar. 22, 1996, Application No. 06240611, Aug. 9, 1994.

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