Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1994-01-11
1995-02-14
Pascal, Robert J.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
369 32, 369 47, 369 54, 369 59, 369116, 369124, G11B 509
Patent
active
053901592
ABSTRACT:
A record carrier (21;70) is disclosed on which a first information volume (VOL1) is recorded in sectors of a track (10), the sector positions on the track being denoted by logic sector address numbers LSN. The recorded information volume (VOL1) comprises control information (PT;DF) for use in controlling the search for information therein, the control information being arranged according to a predetermined format. A reference to the control information is accommodated in track sectors (VD1) in a predetermined address range. Following the first information volume at least a next information volume (VOL2) is recorded in the track (10), each next information volume comprising substitute reference information for use in controlling the search for information both in that information volume and in the previously recorded information volumes. The substitute reference information is accommodated in track sectors (VD2) in a recoverable substitute address range which is preferably the same as the corresponding address range in the first recorded information volume. Reading apparatus for such record carrier transforms a request for access to sectors (VD1) in the address range of the first information volume (VOL1) into a request for access to sectors (VD2) in the substitute address range of the last-recorded information volume. A method and apparatus for recording information in the predetermined format is also disclosed.
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"Compact Disc Interactive Full Functional Specification", published by NV Philips and Sony Corporation, Mar. 1993.
ISO 9660 Standard. Apr. 15, 1988.
Pascal Robert J.
Philogene Haissa
U.S. Philips Corporation
Weiss Richard A.
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