US5721724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical disc containing data stored and linked together in a hierarchical file structure
Assignee: Toshiba Corp
•
Filing: 1997-03-04
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Granted: 1998-02-24
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Expires: 2017-03-04
Abstract
Abstract A table a management region on the disc contains a disc identifier that represents the type of the data recording format of the disc, a number-of-disc-sides identifier that represents whether the disc is a single-sided disc or a double-sided disc, and a disc side identifier that represents whether the reproducing disc is side A or side B of a double-sided disc. A disc identifier 4 that represents the type of the data recording format of the file is recorded in a file (n) table including management information of the file. A reproducing apparatus reads the disc identifiers from the table and the file (n) table and determines whether or not the disc and the file are reproducible. In addition, the reproducing apparatus reads the number-of-disc-sides identifier from the table and determines whether or not the disc is a double-sided disc or a single-sided disc. When the disc is a double-sided disc, the reproducing apparatus determines whether the reproducing side is side A or side B.
Inventors
- 👤 Kazuhiko Taira
- 👤 Hideki Mimura
- 👤 Shinichi Kikuchi
- 👤 Tetsuya Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:01
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; G11B19/00; G11B19/02; G11B19/12; G11B19/125; G11B19/127; G11B20/00; G11B20/10; G11B20/12; G11B20/1217; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B27/34; H04N5/00; H04N5/76; H04N5/84; H04N5/85; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; G11B20/00086; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2562; G11B27/36; G11B7/00; G11B7/007; H04N5/765; H04N5/775; H04N5/9201; H04N5/9205; H04N5/9265; H04N5/9267; H04N9/806; H04N9/8063; H04N9/82; H04N9/8205; H04N9/8227
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A recording medium on which data is recorded as a file, the file comprising: a data unit region containing a data unit representing a group of a plurality of types of data that are synchronously reproduced; a cell information region containing at least one cell information table containing cell information defining a program cell by linking data defining at least one data unit recorded in said data unit region; and a chain information region containing chain information defining at least one program chain composed by linking at least one of said program cells based on said cell information table recorded in said cell information region; menu cell information that includes information used to compose a menu screen on which a data item to be displayed is selected; and identifying information indicating that said menu cell information is used to compose said menu screen.
Claim 2
Dependent Claim
143 words
A recording medium on which data is recorded as a file, the file comprising: a data unit region containing a data unit representing a group of a plurality of types of data that are synchronously reproduced; a cell information region containing at least one cell information table containing cell information defining a program cell by linking data defining at least one data unit recorded in said data unit region; and a chain information region containing chain information defining at least one program chain composed by linking at least one of said program cells based on said cell information table recorded in said cell information region; menu cell information that includes information used to compose a menu screen on which a data item to be displayed is selected; and identifying information indicating that said menu cell information is used to compose said menu screen.
Claim 3
Dependent Claim
41 words
The recording medium as set forth in claim 1, wherein said chain information that composes said program chain and said menu information that composes said menu screen define a menu cell information group as one block of information in said file.
Claim 4
Dependent Claim
35 words
The recording medium as set forth in claim 1, wherein said menu cell information that composes said menu screen further includes language type information that represents a language of characters displayed on said menu screen.
Claim 5
Dependent Claim
116 words
A recording medium on which data is recorded as a file, the file comprising: a data unit region containing a data unit representing a group of a plurality of types of data that are synchronously reproduced; a cell information region containing at least one cell information table containing cell information defining a program cell by linking data defining at least one data unit recorded in said data unit region; and a chain information region containing chain information defining at least one program chain composed by linking at least one of said program cells based on said cell information table recorded in said cell information region; and a code indicating an application type of said program chain.
Claim 6
Dependent Claim
116 words
A recording medium on which data is recorded as a file, the file comprising: a data unit region containing a data unit representing a group of a plurality of types of data that are synchronously reproduced; a cell information region containing at least one cell information table containing cell information defining a program cell by linking data defining at least one data unit recorded in said data unit region; and a chain information region containing chain information defining at least one program chain composed by linking at least one of said program cells based on said cell information table recorded in said cell information region; and a code indicating an application type of said program chain.
Claim 7
Dependent Claim
17 words
The recording medium as set forth in claim 4, wherein one of said application type is karaoke.
References Cited (Backward Citations)
US4862439A
Cited
US5367510A
Cited
EP0459531A2
Cited
EP0325325A2
Cited
US5546365A
Cited
US5280572A
Cited
JPH02287990A
Cited
US5138925A
Cited
US5253361A
Cited
EP0424903A2
Cited
EP0459157A2
Cited
US5521900A
Cited
EP0510871A2
Cited
EP0521487A1
Cited
JPH0546624A
Cited
JPH0567335A
Cited
JPH0589643A
Cited
EP0542377A2
Cited
US5473584A
Cited
JPH0628778A
Cited
EP0570203A2
Cited
JPH0660547A
Cited
WO1994007332A1
Cited
US5546368A
Cited
US5434678A
Cited
EP0644692A2
Cited
WO1995012179A1
Cited
US5469370A
Cited
EP0676894A2
Cited
EP0691651A1
Cited
EP0691652A1
Cited
WO1996016406A1
Cited
EP0714098A2
Cited
EP0724264A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-23 | 2001-08-25 | 2002-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-23 | 2005-08-25 | 2006-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-23 | 2009-08-25 | 2010-02-24 | $7700.00 | Window Closed / Lapsed |