Data storage device and data storage method

专利名称：Data storage device and data storage

method

发明人：Susumu Kusakabe,Masayuki

Takada,Masachika Sasaki

申请号：US10895518申请日：20040720

公开号：US20040258245A1公开日：20041223

专利附图：

摘要：A code range which is the range of usable identification codes (corresponding tofile names or directory names) is stored in an area defining area corresponding to a

directory, and a layer structure in which the area defining area concerned is set as aparent layer and the other area defining areas are set as child layers is constructed onthe basis of the code range. Further, the capacity (empty capacity) of the usable storagearea is stored in the area defining area, and the capacity and identification codes which areusable in the layer of an area defining area are restricted by the empty capacity and thecode range.

申请人：KUSAKABE SUSUMU,TAKADA MASAYUKI,SASAKI MASACHIKA

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