Data-recording device

Details Data-recording device Data-recording device

1979-09-04

1982-01-12

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Inter-record gap processing

360 78, G11B 509

Patent

active

043108610

ABSTRACT:
A data-recording device wherein a plurality of tracks are concentrically provided on the recording surface of a rotatable magnetic recording medium. A plurality of sector-starting positions are arranged on the respective tracks at a given circumferential interval to detect the extent to which the magnetic recording medium has been rotated, and one sector-starting position among the sector-starting positions of the respective tracks is used as a point at which the writing or reading of data is to be commenced. A circumferential angular interval between a sector-starting position provided on a given track to be used as a data write-read starting point and a similar sector-starting position provided on a track adjacent to said given track to be used as a data write-read starting point is so defined as to give a magnetic head a sufficient length of time to be shifted from said given track to the adjacent track in the time of rotating of a magnetic recording medium being rotated through the above-mentioned circumferential angular interval.

REFERENCES:
patent: 3212074 (1965-10-01), Daniels et al.
patent: 3495047 (1970-02-01), Arsumi et al.
patent: 3761903 (1973-09-01), Burro, Jr. et al.
patent: 3787815 (1974-01-01), Farr, Jr.

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