Digital recording and reproducing apparatus and method which pre

Details Digital recording and reproducing apparatus and method which pre Digital recording and reproducing apparatus and method which pre

1996-11-29

1998-04-28

Hindi, Nabil

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 60, 369 53, G11B 700

Patent

active

057454450

ABSTRACT:
A recording and reproducing apparatus and method which prevents or manages a data loss caused by each of seek operations in recording/reproducing a time-series digital data set, to/from a disk recording media via a buffer. Before recording/reproducing, a check is made, by using a rate of data transfer with the outside, of a data transfer rate in an access to a track where each of the selected sectors lies, and of a seek time for each of changes in tracks, to see if the buffer will overflow/underflow during the period of recording/reproducing. If so, then an input/output data transfer rate is reduced before recording/reproducing to make the check. In case of recording, if there is at least a substitute for a sector which will cause the overflow, the sector is changed to a substitute.

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patent: 5596560 (1997-01-01), Ishii
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