Record carrier and apparatus for scanning the record carrier

A record carrier (1) is described which has a servo track (4) indicating an information track (9) intended for recording information blocks, which servo track (4) has a variation of a physical parameter, a so called wobble. The wobble is modulated for encoding record carrier information, such as add...

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Main Authors EGNER, SEBASTIAN, SSCHEP, CORNELIS, M, STEK, AALBERT, BAGGEN, CONSTANT, P., M., J
Format Patent
LanguageEnglish
French
German
Published 28.05.2008
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Abstract A record carrier (1) is described which has a servo track (4) indicating an information track (9) intended for recording information blocks, which servo track (4) has a variation of a physical parameter, a so called wobble. The wobble is modulated for encoding record carrier information, such as addresses. The servo track is subdivided in modulated parts in which the frequency and/or phase of the variation deviates from the wobble frequency, and non-modulated parts. The slope of the wobble is substantially continuous at transitions between the modulated and non-modulated parts by using wobbles (25,26,27,28) starting at the maxima or minima of the wobble in the first part of the modulated parts.
AbstractList A record carrier (1) is described which has a servo track (4) indicating an information track (9) intended for recording information blocks, which servo track (4) has a variation of a physical parameter, a so called wobble. The wobble is modulated for encoding record carrier information, such as addresses. The servo track is subdivided in modulated parts in which the frequency and/or phase of the variation deviates from the wobble frequency, and non-modulated parts. The slope of the wobble is substantially continuous at transitions between the modulated and non-modulated parts by using wobbles (25,26,27,28) starting at the maxima or minima of the wobble in the first part of the modulated parts.
Author BAGGEN, CONSTANT, P., M., J
STEK, AALBERT
EGNER, SEBASTIAN
SSCHEP, CORNELIS, M
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DocumentTitleAlternate Datenträger und Vorrichtung zur Abtastung des Datenträgers
Support d'enregistrement et appareil de balayage du support d'enregistrement
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Snippet A record carrier (1) is described which has a servo track (4) indicating an information track (9) intended for recording information blocks, which servo track...
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SubjectTerms INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Title Record carrier and apparatus for scanning the record carrier
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