US5091901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc cartridge with dual identification elements
Assignee: Sony Corp
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Filing: 1990-03-19
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Granted: 1992-02-25
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Expires: 2010-03-19
Abstract
Abstract A disc cartridge having a cartridge body accommodating therein a record medium so that the record medium can be recorded and/or reproduced in the accommodated state, a first identifying device movably provided in the cartridge body so as to be switched from the outside so that it can close partly or wholly a rectangular window aperture formed through the cartridge body, and a second identifying device provided in the cartridge body in a half-secured condition so as to close a part of another rectangular window aperture formed through the cartridge body and which cannot be switched from the outside, wherein the first and second identifing devices indicate the kind of optical disc and data necessary for recording on and/or reproducing from the optical disc incorporated.
Inventors
- 👤 Hiroshi Yamamoto
- 👤 Shizuo Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:58
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02; G11B19/04; G11B23/00; G11B23/38; G11B23/40; G11B23/02; G11B23/03; G11B23/0301; G11B23/0302; G11B23/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A disc cartridge comprising: (a) a cartridge body accommodating therein a disc-shaped record medium selected from different kinds of disc-shaped record media that can be recorded on and/or reproduced from in that accommodated condition; (b) first identifying means provided in said cartridge body so that it can be switched between different identifying positions from outside said cartridge body; and (c) second identifying means provided in said cartridge body and arranged therein so as not to be readily switched by a user between different identifying positions from outside said cartridge body, wherein information about the disc accommodated in said disc cartridge is indicated by said first and second identifying means.
Claim 2
Dependent Claim
109 words
A disc cartridge comprising: (a) a cartridge body accommodating therein a disc-shaped record medium selected from different kinds of disc-shaped record media that can be recorded on and/or reproduced from in that accommodated condition; (b) first identifying means provided in said cartridge body so that it can be switched between different identifying positions from outside said cartridge body; and (c) second identifying means provided in said cartridge body and arranged therein so as not to be readily switched by a user between different identifying positions from outside said cartridge body, wherein information about the disc accommodated in said disc cartridge is indicated by said first and second identifying means.
Claim 3
Dependent Claim
31 words
A disc cartridge according to claim 1, wherein said first and second identifying means indicates data necessary for recording on and/or reproducing from a record medium accommodated in said disc cartridge.
Claim 4
Dependent Claim
35 words
A disc cartridge according to claim 1, wherein at least one of said first and second identifying means indicates that a recording is not to be made on the disc accommodated in said disc cartridge.
Claim 5
Dependent Claim
32 words
A disc cartridge according to claim 1, wherein at least one of said first and second identifying means indicates a recording capacity of the accommodated record medium measured in minimum recording units.
Claim 6
Dependent Claim
41 words
A disc cartridge according to claim 1, wherein said first identifying means includes a closing member which is movably provided in said cartridge body so that it can partly or wholly close a rectangular window aperture formed through said cartridge body.
Claim 7
Dependent Claim
47 words
A disc cartridge according to claim 5, wherein said second identifying means includes a closing frame member retained from movement within said cartridge body and arranged so that said closing frame member closes at least one portion of another rectangular window aperture formed through said cartridge body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |