Patent US5111442A successfully refreshed from Google Patents.
US5111442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recordable optical disc storage device with limited storage capacity, and recording apparatus therefor
Assignee: Sony Corp
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Filing: 1989-09-15
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Granted: 1992-05-05
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Expires: 2009-09-15
Abstract
Abstract The optical disc according to the present invention includes an unrewritable region in which the number of times of possible recording or the cumulative possible recording time duration is recorded in advance. The apparatus for recording signals on this optical disc according to the present invention reproduce the number of times of possible recording or the cumulative possible recording time duration recorded in the unrewritable region of the optical disc and inhibits the recording operation when the number of times of recording or the cumulative recording time duration exceeds the aforementioned number of times of possible recording or the cumulative possible recording time duration.
Inventors
- 👤 Heitaro Nakajima
- 👤 Masahiro Hotori
- 👤 Hiroshi Ogawa
- 👤 Kazuhiko Fujiie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:20
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B7/00; G11B7/002; G11B7/0037; G11B7/007; G11B7/00736; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/215; G11B2220/218; G11B2220/25; G11B2220/2525; G11B2220/2529; G11B2220/2537; G11B2220/2545
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
70 words
An apparatus for recording signals on an optical disc comprising means for reproducing the number of times of possible recording or the cumulative possible recording time duration recorded on an unrewritable region of the disc and means for inhibiting the recording operation when the number of times of recording or the cumulative recording time duration exceeds the number of times of possible recording or the cumulative possible recording time duration.
Claim 2
Independent Claim
70 words
An apparatus for recording signals on an optical disc comprising means for reproducing the number of times of possible recording or the cumulative possible recording time duration recorded on an unrewritable region of the disc and means for inhibiting the recording operation when the number of times of recording or the cumulative recording time duration exceeds the number of times of possible recording or the cumulative possible recording time duration.
Claim 3
Dependent Claim
31 words
The apparatus according to claim 1 further comprising means for recording the number of times of recording or the cumulative recording time duration in the TOC region of the optical disc.
Claim 4
Dependent Claim
40 words
The apparatus according to claim 2 further comprdsing means for comparing the number of times of recording or the cumulative recording time duration recorded in said TOC region with the number of times of possible recording or the unwritable region.
Claim 5
Dependent Claim
27 words
The apparatus according to claim 1 further comprising means for displaying the residual number of times of possible recording or the residual cumulative possible recording time duration.
Claim 6
Dependent Claim
62 words
A recordable type optical disc for use with an apparatus for optically recording signals thereon and/or playing back therefrom comprising: a recordable region wherein signals and administrative signals therefor are recorded by the apparatus, an unrewritable region wherein information for limiting further signal recording is provided and can be played back for comparison with the administrative signals recorded on the recordable region.
Claim 7
Dependent Claim
62 words
A recordable type optical disc for use with an apparatus for optically recording signals thereon and/or playing back therefrom comprising: a recordable region wherein signals and administrative signals therefor are recorded by the apparatus, an unrewritable region wherein information for limiting further signal recording is provided and can be played back for comparison with the administrative signals recorded on the recordable region.
Claim 8
Dependent Claim
29 words
The recordable type optical disc according to claim 5, wherein said unrewritable region contains information representing the number of times which signals may be recorded on the recordable region.
Claim 9
Dependent Claim
30 words
The recordable type optical disc according to claim 5, wherein said unrewritable region contains information representing the cumulative recording time duration of signals to be recorded on the recordable region.
Claim 10
Dependent Claim
22 words
The recordable type optical disc according to claim 5, wherein the unrewritable region provides the information in the form of pit configuration.
Claim 11
Independent Claim
105 words
An apparatus for recording signals on a recordable type optical disc having a recordable region wherein signals and administrative signals therefor may be recorded thereby and an unrewritable region wherein information for limiting further signal recording is provided and can be played back therefrom comprising: means for playing back the information provided on the unrewritable region of the optical disc; means for playing back the administrative signals provided on the recordable region of the optical disc; and means for inhibiting further signal recording when the administrative signals which are played back designate that a limit for signal recording on the optical disc has been reached.
Claim 12
Independent Claim
105 words
An apparatus for recording signals on a recordable type optical disc having a recordable region wherein signals and administrative signals therefor may be recorded thereby and an unrewritable region wherein information for limiting further signal recording is provided and can be played back therefrom comprising: means for playing back the information provided on the unrewritable region of the optical disc; means for playing back the administrative signals provided on the recordable region of the optical disc; and means for inhibiting further signal recording when the administrative signals which are played back designate that a limit for signal recording on the optical disc has been reached.
Claim 13
Dependent Claim
65 words
An apparatus for recording signals on a recording type optical disc according to claim 9, wherein the administrative signals on the recordable region and the information on the unrewritable region represent the number of times which signals have been recorded on the recordable region of the optical disc and a limitation for the number of times that signal recording is allowed for the same, respectively.
Claim 14
Dependent Claim
57 words
An apparatus for recording signals on a recording type optical disc according to claim 10, further comprising means for displaying the residual number of times allowed for signal recording based upon the comparison of the number of times signals have been recorded on the recordable region and information provided on the unrewritable region of the optical disc.
Claim 15
Dependent Claim
65 words
An apparatus of recording signals on a recording type optical disc according to claim 9, wherein the administrative signals on the recordable region and the information on the unrewritable region represent the cumulative recording time duration which has been recorded on the recordable region of the optical disc and the limitation of the cumulative recording time duration for signal recording allowed for the same, respectively.
References Cited (Backward Citations)
EP0215133A1
Cited
US4802048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-05 | 1995-11-04 | 1996-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-05 | 1999-11-04 | 2000-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-05 | 2003-11-04 | 2004-05-05 | $7700.00 | Window Closed / Lapsed |