Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2008-05-06
2008-05-06
Tran, Thang V. (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S053220
Reexamination Certificate
active
10727980
ABSTRACT:
A plurality of types of writable discs on which wobbles having a predetermined frequency containing absolute addresses and/or various pieces of information on the writable discs can be discriminated by controlling only focusing and using an amplitude of a wobble signal or a wobble PLL lock signal that has passed through a phase locked loop. Accordingly, a discrimination time can be reduced and a disc in an unrecorded state can also be discriminated.
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Choi Byoung-ho
Jung Soo-yul
Lee Dong-jin
Seo Joong-eon
Yoon Yong-seock
Chow Lixi
Samsung Electronics Co,. Ltd.
Stein, McEwen & Bui LLP
Tran Thang V.
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