EP0251666A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for recording and reproducing information
Assignee: Canon Inc
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Filing: 1987-06-23
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Granted: —
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Expires: 2007-06-23
Abstract
Abstract An information recording apparatus comprises: a recorder to record information into a recording medium such as an optical card having a plurality of information recording tracks (106a, 106b); a generator to general management information, i.e., a directory to manage the information to be recorded into the card; and a controller for allowing a plurality of directories (321a to 321d) to be recorded into one of the information recording tracks, wherein when the controller additionally records a directory, it controls the recording position of the directory on the basis of the number concerned with the directories recorded in one track. The controller counts the number of directories or the number of gaps among the directories recorded in one track. When the count value is less than a predetermined number, the controller additionally records a new directory into the track. With this apparatus, the directories can be managed by a simple constitution without adding addresses to the recorded information, respectively.
Inventors
- 👤 Wataru Sakagami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 13:30
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G06; G06F; G06F3/00; G06F3/06; G06F3/08; G11B19/00; G11B19/02; G11B20/00; G11B20/10; G11B20/12; G11B20/1215; G11B7/00; G11B7/002; G11B7/0033; G11B7/007; G11B7/00736
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
An information recording apparatus comprising: means for recording information into a recording medium having a plurality of information recording tracks; means for generating management information to manage the information to be recorded into said recording medium; and control means for allowing said plurality of management information to be recorded into one of said information recording tracks, wherein when said management information is additionally recorded, said control means controls a recording position of said management information in accordance with the number concerned with the management information recorded in one track.
Claim 2
Dependent Claim
89 words
An information recording apparatus comprising: means for recording information into a recording medium having a plurality of information recording tracks; means for generating management information to manage the information to be recorded into said recording medium; and control means for allowing said plurality of management information to be recorded into one of said information recording tracks, wherein when said management information is additionally recorded, said control means controls a recording position of said management information in accordance with the number concerned with the management information recorded in one track.
Claim 3
Dependent Claim
20 words
An apparatus according to Claim 1, wherein said control means counts the number of management information recorded in one track.
Claim 4
Dependent Claim
23 words
An apparatus according to Claim 1, wherein said control means counts the number of gaps among said management information recorded in one track.
Claim 5
Dependent Claim
27 words
An apparatus according to Claim 1, wherein said management information has information indicative of the recording position of the information to be recorded into said recording medium.
Claim 6
Dependent Claim
37 words
An apparatus according to Claim 1, wherein said control means additionally records the management information into said track when the number concerned with the management information recorded in said one track is less than a predetermined number.
Claim 7
Dependent Claim
32 words
An apparatus according to Claim 5, wherein said control means additionally records the management information a predetermined time after the trailing edge of the management information recorded in said track was detected.
Claim 8
Dependent Claim
38 words
An apparatus according to Claim 1, wherein when the number concerned with the management information recorded in said one track is a predetermined number, said control means additionally records management information into a track different from said track.
Claim 9
Dependent Claim
22 words
An apparatus according to Claim 7, wherein said control means additionally records the management information from the head of said different track.
Claim 10
Dependent Claim
26 words
An apparatus according to Claim 1, wherein after said control means additionally recorded the management information, it reproduces the recorded management information and detects an error.
Claim 11
Dependent Claim
18 words
An apparatus according to Claim 1, wherein said recording means records the information by reciprocating said recording medium.
Claim 12
Dependent Claim
14 words
An apparatus according to Claim 1, wherein said recording medium has a card-like shape.
Claim 13
Dependent Claim
81 words
An information recording apparatus comprising: means for recording information into a recording medium having a plurality of information recording tracks; track numbers being added to said plurality of tracks; means for generating management information to manage the information to be recorded into said recording medium; and control means for allowing said plurality of management information to be recorded into one of said information recording tracks, wherein said control means manages said management information without adding recording addresses of the management information.
Claim 14
Dependent Claim
81 words
An information recording apparatus comprising: means for recording information into a recording medium having a plurality of information recording tracks; track numbers being added to said plurality of tracks; means for generating management information to manage the information to be recorded into said recording medium; and control means for allowing said plurality of management information to be recorded into one of said information recording tracks, wherein said control means manages said management information without adding recording addresses of the management information.
Claim 15
Dependent Claim
18 words
An apparatus according to Claim 12, wherein said recording means records the information by reciprocating said recording medium.
Claim 16
Dependent Claim
14 words
An apparatus according to Claim 12, wherein said recording medium has a card-like shape.
Claim 17
Dependent Claim
27 words
An apparatus according to Claim 12, wherein said control means manages said management information on the basis of the number of management information recorded in one track.
References Cited (Backward Citations)
No citation records indexed.
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