File managing device of a non-volatile memory, a memory card and method for controlling a file system
First Claim
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1. A file managing device for a non-partitioned non-volatile memory, said file managing device comprising:
- a first boot record storing means for storing a first boot record indicating information of a first file group at a head address of said non-partitioned non-volatile memory; and
a second boot record storing means for storing a second boot record indicating information of a second file group at an end address of said non-partitioned non-volatile memory.
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Abstract
The present invention sets a first boot record indicating a first file group information on a head address of a non-volatile memory a second boot record indicating a second file group information on an end address of the non-volatile memory without partitioning the non-volatile memory. When accessing to files of first file group, an address is generated based on information on the first boot record. When accessing to files of second file group, an address is generated based on information on the second boot record.
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Citations
18 Claims
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1. A file managing device for a non-partitioned non-volatile memory, said file managing device comprising:
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a first boot record storing means for storing a first boot record indicating information of a first file group at a head address of said non-partitioned non-volatile memory; and a second boot record storing means for storing a second boot record indicating information of a second file group at an end address of said non-partitioned non-volatile memory. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A file managing device of a non-partitioned non-volatile memory, a memory card and method for controlling a file system, said file managing device comprising:
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means for storing a first boot record indicating information of a first file group at a head address on said non-volatile memory without partitioning said non-volatile memory; means for storing a second boot record indicating information of a second file group, at an end address on said non-volatile memory without partitioning said non-volatile memory; first address generation means for generating an address for accessing to files of said first file group based on said information of said first boot record; second address generation means for generating an address for accessing files of said second file group based on said information of said second boot record; and means for allocating two of block allocation structure areas on said non-volatile memory, wherein each of said block allocation structure area stores block erasing frequency information of each block, information on areas not used for said first file group, information on areas not used for said second file group, and information on usable areas.
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9. A non-partitioned, non-volatile memory comprising:
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a plurality of memory cells including a head plurality of memory cells located at head address of said memory and an end plurality of memory cells located at an end address of said memory; a first boot record contained in said head plurality of memory cells, said first boot record indicating information related to a first file group; and a second boot record contained in said end plurality of memory cells, said second boot record indicating information related to a second file group, wherein each of said first and second file groups can be stored anywhere throughout said plurality of memory cells. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for controlling a file system of a non-partitioned non-volatile memory, comprising steps of:
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a first boot record indicating information of storing a first file group at a head address of said non-volatile memory; storing second boot record indicating information of a second file group at an end address of said non-volatile memory; and generating an address for accessing a file of said first file group based on information of said first boot record when reading or writing files of said first file group, and generating an address for accessing a file of said second file group based on said information of second boot record when reading or writing files of said second file group. - View Dependent Claims (16, 17, 18)
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Specification