Digital servo track format with leading and trailing identifiers

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format

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360 43, G11B 509

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active

061249939

ABSTRACT:
A digital servo track pattern for a magnetic medium which can be recorded and reproduced by a recording and reproducing system. The servo track pattern has a plurality of digital mark patterns recorded thereon, each of said digital mark patterns having a leading identifier field of digital bits, a trailing identifier field of digital bits and a field of digital synchronizing data located between said leading and trailing identifier fields. The leading identifier field of digital bits is electrically equivalent during reproducing while the medium is moving in a first direction to the trailing identifier field of digital bits while the medium is moving in a direction opposite to said first direction.

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Proposed SMPTE Standard for Televison Digital Component and Composite Recording, SMPTE Journal, Mar. 1992.
John Watkinson, The D-2 Ditgital Video Recorder, pp. 143-183, 1990.

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