Disk apparatus, and recording/reproduction method therefor

Details Disk apparatus, and recording/reproduction method therefor Disk apparatus, and recording/reproduction method therefor

1997-01-15

2000-01-25

Huber, Paul W.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

369 32, 369 4428, G11B 5596, G11B 1722

Patent

active

060184353

ABSTRACT:
A disk control section of a disk apparatus comprises an identification section for identifying information regarding a position at which head positioning servo information is stored. A position calculation unit calculates the position on a disk medium where recording/reproduction of record information is to be performed. A comparison and decision unit compares the information regarding the position identified by the identification unit with the position information calculated by the position calculation unit each time a predetermined command is received from a higher-level device, and for deciding whether or not the position identified by the identification unit is the position at which the record information is to be recorded on or reproduced. A skip recording/reproduction unit carries out control such that when it is judged, on the basis of the result of the comparison, that the position identified by the identification unit is the position at which recording/reproduction of the record information is to be performed, the record information is recorded/reproduced while skipping the position identified by the identification unit. Accordingly, it becomes possible to record and reproduce variable-length data even in a sector-servo type disk apparatus and a hybrid type disk apparatus, so that their storage capacities can be used effectively.

REFERENCES:
patent: 4890299 (1989-12-01), Dolivo et al.

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