EP0286412A2
Expired / Lapsed
EP
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Apparatus for recording and/or reproducing digital data
Assignee: Sony Corp
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Filing: 1988-04-07
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Granted: —
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Expires: 2008-04-07
Abstract
Abstract An apparatus for recording and/or reproducing digital data on a recording medium (12) comprises a recorder (1) similar to a digital audio recorder which records digital signals in frames each made up of two oblique tracks formed by rotary heads (A,B), and a controller (2) for dividing the digital data into predetermined frame portions which can be easily re-recorded, and supplying the divided data to the recorder as a digital signal.
Inventors
- 👤 Kentaro C/O Patent Division Odaka
- 👤 Shinya C/O Patent Division Ozaki
- 👤 Masaki C/O Patent Division Yamada
- 👤 Hiroshi C/O Patent Division Ishibashi
- 👤 Yoshizumi C/O Patent Division Inazawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 16:57
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1806; G11B20/1809; G11B20/10527; G11B20/12; G11B20/1201; G11B20/1207; G11B20/1209; G11B27/00; G11B27/02; G11B27/031; G11B27/036; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B20/1211; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/215; G11B2220/216; G11B2220/90; G11B2220/91; G11B2220/913
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
63 words
An apparatus for recording digital data on a recording medium (12), the apparatus comprising: recording means (1) for recording an inputted digital signal in one frame, which is made up of two oblique tracks formed by rotary heads; characterized by: control means (2) for dividing said digital data into predetermined frame portions, and supplying the divided digital data to said recording means (1).
Claim 2
Independent Claim
63 words
An apparatus for recording digital data on a recording medium (12), the apparatus comprising: recording means (1) for recording an inputted digital signal in one frame, which is made up of two oblique tracks formed by rotary heads; characterized by: control means (2) for dividing said digital data into predetermined frame portions, and supplying the divided digital data to said recording means (1).
Claim 3
Dependent Claim
40 words
An apparatus according to claim 1 wherein said control means (2) comprise means (22 to 25) for supplying a predetermined frame portion of a dummy signal as a digital signal to said recording means (1) at each predetermined frame portion.
Claim 4
Dependent Claim
64 words
An apparatus according to claim 1 wherein said control means (2) comprise means (26) for generating a predetermined frame portion of an error correcting code for said predetermined frame portion of the digital data at each predetermined frame portion; and means (22 to 25) for supplying said error correcting code as a digital signal to said recording means (1) at each predetermined frame portion.
Claim 5
Dependent Claim
40 words
An apparatus according to claim 3 further comprising means (22 to 25) for recording separate discriminating signals for discriminating each frame in which said digital data information is recorded and each frame in which said error correcting code is recorded.
Claim 6
Dependent Claim
40 words
An apparatus according to claim 4 wherein each of said discriminating signals is recorded in a sub-area of the recording medium (12) different from a main area of the recording medium (12) in which said digital data information is recorded.
Claim 7
Dependent Claim
128 words
An apparatus according to claim 4 further comprising: reproducing means (17) for reproducing digital signals and said discriminating signal recorded in the oblique tracks by rotary heads (A,B); first error correcting means for correcting errors in the reproduced digital signals; means (34) for generating a syndrome for correcting errors on the basis of said reproduced discriminating signal; means for halting the output of the reproduced digital signals when an error which cannot be corrected by said first error correcting means occurs in said reproduced digital signal; means for reproducing recorded digital signals again after said syndrome has been generated; and outputting means (35) for correcting said error occurring in said digital signal by said syndrome and for outputting said digital signal free of said error as digital data.
References Cited (Backward Citations)
No citation records indexed.
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