Patent EP0461831A2 successfully refreshed from Google Patents.
EP0461831A2
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EP
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Method for changing a file name of a directory in a non-rewritable record medium
Assignee: Canon Inc
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Filing: 1991-06-10
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Granted: —
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Expires: 2011-06-10
Abstract
Abstract A method for changing a file name of one of data on a record medium having a plurality of data and a plurality of directories for the data including file names of the data recorded thereon, comprises the steps of recording on the record medium a first change directory including the file name of the one data and information indicating that the change directory is a directory for changing the file name; and recording on the record medium a second change directory including a new file name to be imparted to the one data.
Inventors
- 👤 Hideki c/o Canon Kabushiki Kaisha Hosoya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 20:55
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B7/00; G11B7/002; G11B7/0033; G11B7/007; G11B7/013; G11B20/00; G11B20/10; G11B20/12; G11B20/1215
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
94 words
A method for changing a file name of one of data on a record medium having a plurality of data and a plurality of directories for the data including file names of the data recorded thereon, comprising the steps of: recording on the record medium a first change directory including the file name of said one data and information indicating that said change directory is a directory for changing the file name; and recording on the record medium a second change directory including a new file name to be imparted to said one data.
Claim 2
Dependent Claim
39 words
A method for changing a file name according to Claim 1 wherein said second change directory includes information indicating that said second change directory is a directory including the new file name to be imparted to said one data.
Claim 3
Dependent Claim
26 words
A method for changing a file name according to Claim 1 wherein said information indicating the change directory includes coded information of one or more bit.
Claim 4
Dependent Claim
48 words
A method for changing a file name according to Claim 1 wherein said medium has a first area having data recorded therein and a second area having directories recorded therein, and said first and second change directories are appendedly recorded in an unrecorded area of the second area.
Claim 5
Dependent Claim
43 words
A method for changing a file name according to Claim 4, wherein a plurality of parallel tracks are provided in said medium, the data are recorded from one end track of the tracks and the directories are recorded from the other end track.
Claim 6
Independent Claim
124 words
A method for changing a file name of one of data on a non-rewritable record medium having a first area having a plurality of data recorded therein and a second area having a plurality of directories for the data including file names of the data recorded therein, comprising the steps of: additionally recording a first change directory including a file name of said one data and information indicating that said first change directory is a directory for changing the file name, in an unrecorded area of the second area of the record medium; and additionally recording a second change directory including a new file name to be imparted to said one data in an unrecorded area of the second area of the record medium.
Claim 7
Dependent Claim
39 words
A method for changing a file name according to Claim 6 wherein said second change directory includes information indicating that said second change directory is a directory including the new file name to be imparted to said one data.
Claim 8
Dependent Claim
26 words
A method for changing a file name according to Claim 6 wherein said information indicating the change directory includes coded information of one or more bit.
Claim 9
Dependent Claim
43 words
A method for changing a file name according to Claim 6 wherein a plurality of parallel tracks are provided in said medium, the data are recorded from one end track of the tracks and the directories are recorded from the other end track.
Claim 10
Independent Claim
143 words
A method for recording information on a record medium having a first area for recording data and a second area for recording a directory to be used to manage the data, comprising the steps of: recording data in the first area of the medium; recording a directory including a file name of the data in the second area of the medium; recording in the second area of the record medium a first change directory including a file name prior to the change of data and information for indicating that the first change directory is a directory for changing the file name; and recording in the second area of the record medium a second change directory including a new file name to be imparted to said one data and information indicating that the second change directory is a directory indicating the new file name.
Claim 11
Dependent Claim
39 words
A method for changing a file name according to Claim 10 wherein said second change directory includes information indicating that said second change directory is a directory including the new file name to be imparted to said one data.
Claim 12
Dependent Claim
26 words
A method for changing a file name according to Claim 10 wherein said information indicating the change directory includes coded information of one or more bit.
Claim 13
Dependent Claim
43 words
A method for changing a file name according to Claim 10 wherein a plurality of parallel tracks are provided in said medium, the data are recorded from one end track of the tracks and the directories are recorded from the other end track.
Claim 14
Dependent Claim
90 words
A record medium comprising: a first area having a plurality of data recorded therein; and a second area having a plurality of directories for managing the data recorded therein; each of said directories having a plurality of ordinary directories one for each of the data, each ordinary directory including a file name for the corresponding data and address information, and a first change directory having file names prior to the change of data recorded therein and a second change directory having file names after the change of data recorded therein.
Claim 15
Dependent Claim
24 words
A record medium according to Claim 14 wherein said first change directory includes information for discriminating from ordinary directory and the second change directory.
Claim 16
Dependent Claim
18 words
A record medium according to Claim 15 wherein said information comprises coded information having one or more bit.
Claim 17
Dependent Claim
25 words
A record medium according to Claim 14 wherein said second change directory includes information for discriminating from the ordinary directory and the first change directory.
Claim 18
Dependent Claim
18 words
A record medium according to Claim 17 wherein said information comprises coded information having one or more bit.
Claim 19
Dependent Claim
21 words
A record medium according to Claim 14 wherein said address information comprises a leading track number and a leading sector number.
Claim 20
Dependent Claim
39 words
A record medium according to Claim 14 wherein said directories further include an erasure directory for erasing the file, and the erasure directory includes a delete bit for discriminating from the ordinary directory and the first and second directories.
Claim 21
Dependent Claim
26 words
A record medium according to Claim 14 wherein said record medium is a card-like optical information record medium having a plurality of parallel tracks formed thereon.
Claim 22
Independent Claim
182 words
A method for retrieving data by an apparatus having means for reading data and a directory from a record medium and a memory for storing the read directory, said record medium having a plurality of data, a first change directory having a plurality of ordinary directories for the data including file names of the corresponding data and address information and file names prior to the change of data recorded therein, and a second change directory having file names after the change of data recorded therein, comprising the steps of: reading the ordinary directories, the first change directory and second change directory from the medium; storing the read ordinary directories in a memory; identifying the ordinary directory stored in the memory having the same file name as the file name stored in the first change directory; substituting the file name of the identified ordinary directory with the file name recorded in the second change directory in the memory; and retrieving the data recorded on the medium by using the ordinary directories including the directory having the file name substituted, stored in the memory.
Claim 23
Dependent Claim
54 words
A method for retrieving data according to Claim 22 wherein said medium further includes an erasure directory having a file name to be erased recorded therein, and said method further comprises the step of erasing the ordinary directory stored in the memory that has the same file name as that in the erasure directory.
References Cited (Backward Citations)
No citation records indexed.
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