Information track format and reading and recording apparatuses t

Details Information track format and reading and recording apparatuses t Information track format and reading and recording apparatuses t

1994-12-13

1997-02-25

Kim, W. Chris

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 7714, G11B 509, G11B 5584

Patent

active

056064659

ABSTRACT:
A reading apparatus for reading information recorded on a first longitudinal recording medium in the form of helical scanned information tracks, according to a first format in which the tracks have been recorded on the medium at a first track pitch and have a first track width, the information being read by the apparatus at a given tape velocity, the information being read from the first medium at a first bit rate, immediately adjacent tracks exhibiting alternately a first and a second azimuth angle, pilot tones being recorded in information tracks, the frequency of the recorded tones cycling through at least two different frequencies (f1, f2); and a second longitudinal recording medium recorded in the form of helical scanned information tracks, in accordance with a second, new, format in which the information track pitch is substantially twice the first track pitch, the information track width is greater than the first track width, the information being read from the second medium at substantially half the first bit rate, all of the information tracks on the second medium exhibiting the same azimuth angle, this angle being one of the first and second azimuth angles, immediately adjacent tracks containing pilot tones having mutually different ones of at the least two frequencies (f1, f2).

REFERENCES:
patent: 4597023 (1986-06-01), Rijckaert
patent: 4827361 (1989-05-01), Yoshioka
patent: 4862292 (1989-08-01), Enari et al.
patent: 4878133 (1989-10-01), Takimoto
patent: 4963991 (1990-10-01), Honjo
patent: 5032931 (1991-07-01), Suzuki et al.
patent: 5159500 (1992-10-01), Oguro et al.
patent: 5245483 (1993-09-01), Van Gestel
patent: 5245485 (1993-09-01), Dunn et al.
patent: 5247396 (1993-09-01), Nagai et al.
patent: 5379433 (1995-01-01), Yamagishi
patent: 5381280 (1995-01-01), Lee

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