Patent ID: 6209057
Filing Date: 2001-03-27
Classification: G06F

Abstract:
A storage device having a data buffer in which data to be stored in a storage medium or data read from the storage medium is stored temporarily, and the storage medium including at least a storage unit for first information used to store data items constituting each file that is an information unit, a storage unit for second information which is an index table indicating storage locations of files, and a storage unit for third information which is list information of files, comprising:a first memory area for said first information which is bounded by a fixed boundary address within the memory area in the data buffer;a second memory area for said second information which is bounded by a fixed boundary address within the memory area in the data buffer;a third memory area for said third information which is bounded by a fixed boundary address within the memory area in the data buffer; anda data buffer managing means that, when data is read from said storage medium, stores and preserves data read from said first information storage unit in said first memory area, stores and preserves data read from said second information storage unit in said second memory area, and stores and preserves data read from said third information storage unit in said third memory area.