US4937804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording data into optical recording medium
Assignee: Toshiba Corp
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Filing: 1988-03-09
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Granted: 1990-06-26
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Expires: 2008-03-09
Abstract
Abstract An optical disk apparatus is adapted to record into and reproduce information from a plurality of blocks on an optical disk medium. The respective block on the optical disk medium has a preformat section which is continuously recorded with a plurality of ID information and a data recording section for recording information. The data recording section contains an information recording area, a recorded flag recording area and a post field. If the number of ID information detected never exceeds 2, then recording of the information into the corresponding block is inhibited, and the information is then recorded into a data alternative area instead.
Inventors
- 👤 Atsushi Ishihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:47
CPC Classifications
G; G11; G11B; G11B7/00; G11B20/00; G11B20/10; G11B20/18; G11B20/1883; G11B19/00; G11B19/02; G11B19/04; G11B20/12; G11B20/1217; G11B20/1258; G11B7/004; G11B7/0045; G11B7/007; G11B7/013; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
An apparatus for recording data on an optical recording medium on which a plurality of blocks are provided corresponding to a plurality of positions, each of said blocks having a header and a data recording area, said header including a plurality of block numbers each indicating the corresponding one of said portions, and said data recording area recording data, comprising: means for reproducing the block numbers from the header of said optical recording medium; means, responsive to at least two of said block numbers which are reproduced by said reproducing means, for outputting a detection signal; and means for recording, in response to the detection signal, the data into the data recording area corresponding to the block numbers reproduced.
Claim 2
Independent Claim
119 words
An apparatus for recording data on an optical recording medium on which a plurality of blocks are provided corresponding to a plurality of positions, each of said blocks having a header and a data recording area, said header including a plurality of block numbers each indicating the corresponding one of said portions, and said data recording area recording data, comprising: means for reproducing the block numbers from the header of said optical recording medium; means, responsive to at least two of said block numbers which are reproduced by said reproducing means, for outputting a detection signal; and means for recording, in response to the detection signal, the data into the data recording area corresponding to the block numbers reproduced.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1, in which said recording means comprises medium drive means for rotating said optical recording medium at a constant speed and means for recording the data into said data recording area at a bit rate varying in a radial direction of said optical recording medium.
Claim 4
Independent Claim
112 words
An apparatus for recording data on an optical recording medium on which a plurality of blocks are provided corresponding to a plurality of positions, each of said blocks having a header and a data recording area, said header including a plurality of block numbers each indicating the corresponding one of said positions, and said data recording area recording data, comprising: means for reproducing the block numbers from the header of said optical recording medium; means for recording the data into said optical recording medium; and means for inhibiting recording of the data on the data recording area when at least two of said block numbers are not reproduced by said reproducing means.
Claim 5
Independent Claim
112 words
An apparatus for recording data on an optical recording medium on which a plurality of blocks are provided corresponding to a plurality of positions, each of said blocks having a header and a data recording area, said header including a plurality of block numbers each indicating the corresponding one of said positions, and said data recording area recording data, comprising: means for reproducing the block numbers from the header of said optical recording medium; means for recording the data into said optical recording medium; and means for inhibiting recording of the data on the data recording area when at least two of said block numbers are not reproduced by said reproducing means.
Claim 6
Dependent Claim
47 words
The apparatus of claim 3, in which said optical recording medium includes an alternative recording area having a predetermined number of blocks, and said recording means has means for recording the data, which was inhibited from being recorded by said inhibiting means, into the alternative recording area.
Claim 7
Dependent Claim
49 words
The apparatus of claim 3, in which said recording means comprises medium drive means for rotating said optical recording medium at a constant speed and means for recording the data into said data recording area at a bit rate varying in a radial direction of said optical recording medium.
Claim 8
Dependent Claim
92 words
The apparatus of claim 1, wherein said reproducing means includes means for generating a start signal indicating the start of a recording operation, when said at least two block numbers are reproduced, and said recording means includes means for modulating the data to be recorded on said recording medium to output a modulated signal, means for providing the data to be recorded to said modulating means, and laser means for generating a laser beam on the recording medium in accordance with the modulated signal, to write the data in the recording area.
Claim 9
Dependent Claim
43 words
The apparatus according to claim 6, wherein said recording means includes means for supplying a flap indicating a completion of data-recording to said laser means, to record the flag on the recording area, after the data has been recorded on the recording area.
Claim 10
Dependent Claim
50 words
The apparatus of claim 7, wherein said recording means includes means for detecting the flag from the data reproduced by said reproducing means, to output a flag signal, and means for inhibiting the recording of data onto the recording area corresponding to the flag, in response to the flag signal.
Claim 11
Dependent Claim
55 words
The apparatus of claim 1, wherein said recording medium has an alternative recording area, said detection signal outputting means generates a further detection signal when only one of the block numbers is reproduced, and said recording means includes means for recording the data on the alternative recording area, in response to the further detection signal.
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) | 1993-06-25 | 1993-12-25 | 1994-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-25 | 1997-12-25 | 1998-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-25 | 2001-12-25 | 2002-06-26 | $7700.00 | Window Closed / Lapsed |