Information storage device with multiple-use fields in servo pattern

An embodiment of the present invention implements some or all major servo subfunctions for a storage device in integrated servo fields comprising sequences of encoded bits having selected mathematical properties. The integrated servo field is composed of a number of encoded sequences, which are memb...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FLYNN DAVID TIMOTHY, COKER JONATHAN DARREL, CASSUTO YUVAL
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An embodiment of the present invention implements some or all major servo subfunctions for a storage device in integrated servo fields comprising sequences of encoded bits having selected mathematical properties. The integrated servo field is composed of a number of encoded sequences, which are members of a selected sequence set that is constrained to preferably provide some or all of the following functions: the Servo Track Mark (STM), the Position Error Signal (PES) and positional information such as the track-ID. In one embodiment the plurality sequences encoding a location identifier such as a track-ID are distributed across a set of servo wedges. A method of encoding the location identifier using a Chinese Remainder Theorem is described.