Device for accessing address information in an optical disc

Details Device for accessing address information in an optical disc Device for accessing address information in an optical disc

2005-04-15

2011-11-01

Klimowicz, Will J (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053340

Reexamination Certificate

active

08050151

ABSTRACT:
An address-accessing device includes first and second information generators for producing first and second information according to the received address signals; a phase offset detector for producing a phase offset according to the first and second information; a reference signal generator for producing a reference signal according to the phase offset, the first information and the second information; and a decoder used to determine the structure type of an address-in-pregroove unit (ADIP) according to the reference value. This address-accessing device is capable of adjusting the decision level and the phase offset automatically to lower the error rate occurring in the address access procedure.

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Wobble-Address Format of the Blu-ray Disc Shoei Kobayashi et al. Jpn. J. Appl. Phys. vol. 42 (2003) pp. 915-918; Part 1, No. 2B, Feb. 2003; The Japan Society of Applied Physics.

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