Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2003-02-10
2009-11-10
Dinh, Tan X (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S275200, C430S270130
Reexamination Certificate
active
07616552
ABSTRACT:
An optical disc or other optical recording medium enables reading barcode-shaped-BCA marks in a burst cutting area (BCA) with tracking on while making tampering with the BCA marks difficult. The optical disc100has a first area102containing tracks at a first track pitch d2, and a second area101containing tracks at a second track pitch d1. The barcode-shaped marks104are recorded in the second area, and the second track pitch is wider than the first track pitch.
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Computer Translation of JP 2000-057632 (Feb. 25, 2000 ).
Abe Shinya
Heemskerk Jacobus Petrus Josephus
Ogawa Hiroshi
Schep Cornelis Marinus
Tanaka Shin-ichi
Dinh Tan X
Koninklijke Philips Electronics , N.V.
Panasonic Corporation
Sony Corporation
Wenderoth , Lind & Ponack, L.L.P.
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