Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2007-09-25
2007-09-25
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S275400, C369S047190, C369S124040
Reexamination Certificate
active
10481143
ABSTRACT:
A record carrier has a servo track indicating an information track intended for recording information blocks, which servo track has a variation of a physical parameter, referred to as wobble. The wobble is modulated for encoding record carrier information, such as addresses. The servo track is subdivided in non-modulated and parts modulated parts in which the frequency and/or phase of the variation deviates from the wobble frequency. The slope of the wobble is substantially continuous at transitions between the modulated and non-modulated parts by using wobbles starting at the maxima or minima of the wobble.
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Baggen Constant Paul Marie Jozef
Egner Sebastian
Schep Cornelis Marinus
Stek Aalbert
Belk Michael E.
Giesy Adam R.
Koninklijke Philips Electronics , N.V.
Young Wayne
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