EP0169137A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for storing on a disc several series of data for different users, and disc manufactured by this method
Assignee: LOGIVISION
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Filing: 1985-07-05
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Granted: —
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Expires: 2005-07-05
Abstract
Abstract 1. Process for storing on an optical disk several information series intended for several users, consisting of recording the information series on concentric areas (5) of the disk and placing on the disk at least one scrambling zone (7) extending radially over the entire disk, with the exception of the area containing the information for the user for whom the disk is intended and making unintelligible the information carried by the areas of the disk, other than those of interest to said user.
Inventors
- 👤 Alain Dupuy
- 👤 Christian Durix
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 12:59
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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