Optical disc having uniform structure

Details Optical disc having uniform structure Optical disc having uniform structure

2006-06-20

2006-06-20

Hindi, Nabil (Department: 2655)

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C369S047480, C369S047270, C369S275300

Reexamination Certificate

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07065015

ABSTRACT:
An optical disc is manufactured under a uniform condition by forming grooves and lands on the entire surface of the disc. The optical disc is configured to obtain a reliable reproduction signal, and the grooves and lands are formed on a lead-in area, a user data area and a lead-out area of the optical disc. Since the same manufacturing condition can be adopted in mastering discs, the yield can be enhanced and the manufacturing cost can be reduced.

REFERENCES:
patent: 5648954 (1997-07-01), Satoh
patent: 6621772 (2003-09-01), Asano et al.
patent: 2002/0027869 (2002-03-01), Morita et al.
patent: 1277426 (2000-12-01), None
patent: 0628952 (1994-12-01), None
patent: 10-222874 (1998-08-01), None
patent: 2002-260240 (2002-09-01), None
“Data Interchange on 120 mm Optical Disc using DVD+RW Format-Capacity: 3,0 Gigabytes and 6,0 Gigabytes”, Draft Standard ECMA-. . . 3rd draft —Nov. 1997, pp. 6, 7, 13, 26, 27 and 31.
Office Action issued in Chinese Patent Application No. 2004100749276 on Nov. 4, 2004.

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