EP0162689A2
Expired / Lapsed
EP
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Magnetic disc reproducing apparatus
Assignee: Sony Corp
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Filing: 1985-05-20
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Granted: —
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Expires: 2005-05-20
Abstract
Abstract A magnetic disc reproducing apparatus, for reproducing information signals from one of a plurality of tracks of a magnetic disc, includes a transducer (21) positioned in transducing relation with the plurality of tracks for reading out the information signals of the tracks, a checking circuit (45, 52) connected to the transducer (21) for checking a portion of the information signals, and an identifying circuit (53) connected to the checking circuit (45, 52) for identifying characteristics of the information signals being reproduced.
Inventors
- 👤 Ken C/O Sony Corporation Kutaragi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 01:03
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/012; G11B5/016; G11B20/00; G11B20/10; G11B20/12; G11B20/1217; G11B20/1251; G11B20/18; G11B20/1806; G11B20/1809; G11B23/00; G11B23/0014; G11B23/0021; G11B27/00; G11B27/36; H; H04; H04N; H04N9/00; H04N9/79; H04N9/7921; H04N9/80; H04N9/82; H04N9/83; G11B20/10527; G11B2020/10537; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2508
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
88 words
A magnetic disc reproducing apparatus for reproducing information signals from one of a plurality of tracks (2T) of a magnetic disc (2), the apparatus comprising: transducer means (21) which is or can be positioned in transducing relation with the plurality of tracks (2T) for reading out the information signals of the tracks; checking means (45, 52) connected to the transducer means (21) for checking portions of the information signals; and means (53) connected to the checking means (45, 52) for identifying characteristics of the information signals being reproduced.
Claim 2
Dependent Claim
88 words
A magnetic disc reproducing apparatus for reproducing information signals from one of a plurality of tracks (2T) of a magnetic disc (2), the apparatus comprising: transducer means (21) which is or can be positioned in transducing relation with the plurality of tracks (2T) for reading out the information signals of the tracks; checking means (45, 52) connected to the transducer means (21) for checking portions of the information signals; and means (53) connected to the checking means (45, 52) for identifying characteristics of the information signals being reproduced.
Claim 3
Dependent Claim
46 words
A magnetic disc reproducing apparatus according to claim 1, in combination with the disc (2), wherein the characteristics of the information signals include an analog signal and a digital signal, and the tracks of the magnetic disc (2) include analog signal tracks and digital signal tracks.
Claim 4
Dependent Claim
37 words
A magnetic disc reproducing apparatus according to claim 2, wherein each of the digital signal tracks includes a burst portion (BRST) and the apparatus is arranged to supply the burst portion to the ct ecking means (45).
Claim 5
Dependent Claim
35 words
A magnetic disc reproducing apparatus according o claim 2, wherein each of the analog signal tracks includes a synchronisim portion and the apparatus is arranged to supply the synchronising portio to the checking means (52).
Claim 6
Dependent Claim
38 words
A magnetic disc reproducing apparatus according to claim 3, wherein each of the analog signal tracks includes a synchronisir - portion and the apparatus is arranged to supply the synchronising po tion also to the checking means (52).
Claim 7
Dependent Claim
23 words
A magnetic disc having recorded thereon informatic signals that can be reproduced by apparatus according to any one of the pre ceding claims.
References Cited (Backward Citations)
No citation records indexed.
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