Patent
1992-08-05
1995-09-05
Black, Thomas G.
395700, 395439, G06F 9312
Patent
active
054487285
ABSTRACT:
A system for accessing a write-once read-many storage medium is intended to modify and update a stored data on the medium according to an operator's desire and easily manage the modified data and the updated data on the storage medium. The system is arranged to have a first and second searching unit, a writing unit and a reading unit. The first searching unit operates to search a non-writing area next to a last data-written area on a data storage area of the storage medium and the writing unit operates to read the updated data on the searched area. The second searching unit operates to search a last data-written area on the storage medium and the reading unit operates to read the data from the searched area. For searching the area by the second searching unit, a binary search may be used.
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Kita Sumio
Takano Sakuharu
Black Thomas G.
Conlin David G.
Corless Peter F.
Pham Cuan
Sharp Kabushiki Kaisha
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