Information recording/reproducing apparatus and data processing

Details Information recording/reproducing apparatus and data processing Information recording/reproducing apparatus and data processing

1995-10-19

1998-11-24

Swann, Tod R.

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

360 53, 360 741, 360 27, 369 4439, 369 58, G11B 2736

Patent

active

058415980

ABSTRACT:
An information recording/reproducing apparatus for recording or reproducing information on or from a recording medium in response to a command sent from a host computer has a cache memory serving as an intermediate memory and temporarily storing information to be transferred to or from the host computer. In response to an information record command sent from the host computer, completion of writing of information is reported to the host computer at the end of storing record data transferred from the host computer in the cache memory. The record data stored in the cache memory is written on a recording medium independently of data transfer between the host computer and intermediate memory. In response to an information playback command sent from the host computer, it is determined whether playback data requested by the host computer is consistent with unprocessed record data stored in the cache memory. When the playback data is inconsistent with or no duplicate of the unprocessed record data, writing of data from the cache memory onto the recording medium is suspended and processing requested with the information playback command is executed as a top priority.

REFERENCES:
patent: 4760576 (1988-07-01), Sako
patent: 4949326 (1990-08-01), Takagi et al.
patent: 5313471 (1994-05-01), Otaka et al.
patent: 5438560 (1995-08-01), Lee
patent: 5442614 (1995-08-01), Tamegai
patent: 5585933 (1996-12-01), Ichige et al.

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