Information recording medium and recording/reproducing method fo

Details Information recording medium and recording/reproducing method fo Information recording medium and recording/reproducing method fo

1996-12-26

1999-08-24

Hindi, Nabil

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7701, G11B 5584

Patent

active

059431806

ABSTRACT:
An information recording medium and method arranges a plurality of information recording tracks in parallel to a running direction of an information recording medium and divides the tracks into a plurality of data blocks, and a servo-burst section between the data blocks. The servo-burst section has, alternately servo-burst-signal recording sections and servo-burst-signal non-recording section. The position of a recording/reproducing head is controlled by using a plurality of recording/reproducing head gaps provided in the head and detecting positional deviations of the head gaps from the centers of the information recording tracks. The deviations are detected from intensity changes of signals from the servo-burst-signal recording sections. The head position control is performed such that at least one of the two head gaps is located at a position to reproduce a signal from both of the servo-burst-signal recording section and the servo-burst-signal non-recording section simultaneously The placement of the servo-burst-signal recording
on-recording sections with respect to head gaps results in a ratio of the signals of the head gap located corresponding to the servo-burst-signal recording section with respect to the signal of the head gap located corresponding to the servo-burst-signal non-recording section as being a predetermined ratio.

REFERENCES:
patent: 4472750 (1984-09-01), Klumpp et al.
patent: 4586094 (1986-04-01), Chambors et al.
patent: 5432652 (1995-07-01), Comeaux et al.
patent: 5453887 (1995-09-01), Negishi et al.

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