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US 5,708,650 AGranted
Multiple format interchangeable optical recording medium and method of controlling same
AssigneeFujitsu Limited
InventorsKazuo Nakashima, Kenichi Utsumi
Life of this patent
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AssigneeFujitsu Limited
InventorsKazuo Nakashima, Kenichi Utsumi
Estimating the term…
Common-use data (FATs, a directory, files, etc.) is recorded in a first area of an interchangeable recording medium, and logical format information of a plurality of types for managing the common-use data recorded in the first area is recorded in the second area. When the interchangeable recording medium is loaded, a computer reads logical format information conforming to its own machine type from the second area and subsequently accesses the common-use data in the first area based upon the logical format information read. Further, a corresponding relationship between computers and storage locations of the logical format information is recorded in a third area of the interchangeable recording medium. Each computer recognizes the location, at which its own logical format information has been stored, by referring to the corresponding relationship and reads the logical format information from this location. The computer subsequently accesses the common-use data in the first area based upon the logical format information read.
A multiple format interchangeable optical recording medium comprising:
A method of accessing data of a multiple format interchangeable optical recording medium storing file management data accessible by a plurality of types of computers, and computer logical format information corresponding to said plurality of types of computers for managing the file management data, wherein a corresponding relationship between each of said of plurality of types of computers and storage locations of the computer logical format information is stored upon the recording medium, said method comprising:
A multiple format interchangeable optical recording medium comprising:
A method of accessing data of a multiple format interchangeable optical recording medium storing file management data accessible by a plurality of types of computers, and computer logical format information corresponding to said plurality of types of computers for managing the file management data, said computer logical format information being recorded at a location that conforms to each of said plurality of types of computers, and includes address information to access selected file management data, said method comprising:
A method of accessing data of a multiple format interchangeable recording medium storing file management information data accessible by a plurality of types of computers, and computer logical format information corresponding to said plurality of types of computers for managing the file management data, wherein a corresponding relationship between each of said of plurality of types of computers and storage locations of the computer logical format information is stored upon the recording medium, said method comprising:
A method of accessing data of a multiple format interchangeable recording medium storing file management data accessible by a plurality of types of computers, and computer logical format information corresponding to said plurality of types of computers for managing the file management data, wherein computer logical format information corresponding to each of the plurality of types of computers is recorded at a location that conforms to each of the plurality of types of computers, and includes address information to access selected file management data, said method comprising:
A multiple format interchangeable recording medium comprising:
A multiple format interchangeable recording medium comprising:
A method of accessing data of a multiple format interchangeable optical recording medium storing file management data accessible by a plurality of types of computers, computer logical format information corresponding to said plurality of types of computers for managing the file management data, and machine-type recognition information for identifying a machine type of a computer into which the recording medium is loaded are respectively stored in the interchangeable recording medium, said method comprising:
Dependencies are inferred from the claim text.