Method and apparatus for controlling the reproduction of data stored on a storage medium method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Jan 8, 1998
filing date -
Jan 10, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Plural program information and a BCA (Burst Cutting Area) number of the optical disc (100) is previously recorded in the optical disc (100). A drive ID is stored in the nonvolatile memory (104a) of the reproduction apparatus (104). A user of the reproduction appparatus (104) notifies the BCA number, the drive ID, and a number of preferred program information to the software house (software supplier(110) on the condition that the user pays for the reproduction of the preferred program information recorded in the optical disc (100). The software house (110) notifies a cipher key to the reproduction apparatus (104) or the user. A title key is calculated in the reproduction apparatus (104) in accordance with the BCA number, the drive ID, and the cipher key. The preferred information recorded in the optical disc (100) is permitted to be reproduced by using the title key.
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