Information storage medium evaluation method, information...

Details Information storage medium evaluation method, information... Information storage medium evaluation method, information...

2008-03-25

2008-03-25

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Control of information signal processing channel

C369S047270, C369S053220, C369S053330

Reexamination Certificate

active

10797128

ABSTRACT:
An information storage medium according to an aspect of this invention has an information storage area for storing information, and a wobbled track which is used to guide a light beam on the information storage area, and is wobbled in correspondence with a frequency, a phase of which is modulated at predetermined timings to reflect predetermined information. The wobbled track is formed so that an evaluation result based on the frequency characteristics of a squared reproduction signal obtained by squaring a reproduction signal corresponding to the wobbled track, obtained from the reflected light of a light beam with which the wobbled track is irradiated, meets a predetermined evaluation measure.

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ECMA International, Standardizing Information and Communication Systems, No. 337, XP-002285700, pp. 1-108 “Standard ECMA-337: Data Interchange on 120mm and 80mm Optical Disk Using +RW Format-Capacity: 4,7 and 1,46 Gbytes Per Side”, Dec. 2002.
U.S. Appl. No. 10/797,128, filed Mar. 11, 2004, Ogawa et al.
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U.S. Appl. No. 10/796,131, filed Mar. 10, 2004, Nagai et al.

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