Disc recording medium, disc drive apparatus, reproduction...

Details Disc recording medium, disc drive apparatus, reproduction... Disc recording medium, disc drive apparatus, reproduction...

2002-10-04

2008-07-22

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Having specific code or form generation or regeneration...

C369S059250, C369S053350, C369S275300

Reexamination Certificate

active

07403461

ABSTRACT:
A recording and reproducing area and a reproduction-only area are formed by wobbling a groove formed in a spiral fashion to form a track to be tracked on a disk. The recording and reproducing area has address information recorded by wobbling of the groove and information recorded and reproduced by phase change marks on the track formed by the groove where the address information is recorded. The reproduction-only area has prerecorded information recorded by wobbling of the groove.

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