US5532992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording and reproducing method for writable type disk driving apparatus
Assignee: Pioneer Corp
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Filing: 1994-09-07
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Granted: 1996-07-02
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Expires: 2014-09-07
Abstract
Abstract A recording and reproducing method of a driving apparatus for a writable type disk, in which a substantial loading time of an optical disk are remarkably reduced and operations are quickly executed in response to a command. At the time of recording of information, after information has been written into an information recording area of a designated address, reading operation of latest defect management information is executed only in a case where the result of a verification reading process of the written information indicates a failure. At the time of reading of the recorded information as well, after the recorded information in the information recording area of the designated address has been read, the reading operation of the latest defect management information is executed only in a case where the read recorded information cannot be reproduced.
Inventors
- 👤 Kyota Funamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:58
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02; G11B19/04; G11B20/00; G11B20/10; G11B20/18; G11B20/1883; G11B2220/00; G11B2220/20; G11B7/00; G11B7/002; G11B7/0037
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A recording and reproducing method for a writable type disk driving apparatus for driving a writable type disk in which an information recording area is divided into a plurality of bands and every band has a defect management information recording area, the method comprising: recording latest defect management information at a predetermined sector in the defect management information recording area, the latest defect management information being indicative of (i) an address of a defective sector in the disk and (ii) an address of an alternative sector for the defective sector; recording information by accessing a designated address immediately in response to a write command; verifying whether the information was accurately recorded at the designated address; and reading the latest defect management information from the writable type disk only if said verifying determines that the information was not accurately recorded at the designated address.
Claim 2
Dependent Claim
143 words
A recording and reproducing method for a writable type disk driving apparatus for driving a writable type disk in which an information recording area is divided into a plurality of bands and every band has a defect management information recording area, the method comprising: recording latest defect management information at a predetermined sector in the defect management information recording area, the latest defect management information being indicative of (i) an address of a defective sector in the disk and (ii) an address of an alternative sector for the defective sector; recording information by accessing a designated address immediately in response to a write command; verifying whether the information was accurately recorded at the designated address; and reading the latest defect management information from the writable type disk only if said verifying determines that the information was not accurately recorded at the designated address.
Claim 3
Dependent Claim
140 words
A recording and reproducing method for a writable type disk driving apparatus for a writable type disk in which an information recording area is divided into a plurality of bands and every band has a defect management information recording area, said method comprising: recording latest defect management information at a predetermined sector in the defect management information recording area, the latest defect management information being indicative of (i) an address of a defective sector in the disk and (ii) an address of an alternative sector for the defective sector; reading pre-recorded information by accessing a designated address immediately in response to a read command; and reading the latest defect management information from the writable type disk only if the pre-recorded information cannot be reproduced after the recorded information in the information recording area of the designated address has been read.
Claim 4
Dependent Claim
140 words
A recording and reproducing method for a writable type disk driving apparatus for a writable type disk in which an information recording area is divided into a plurality of bands and every band has a defect management information recording area, said method comprising: recording latest defect management information at a predetermined sector in the defect management information recording area, the latest defect management information being indicative of (i) an address of a defective sector in the disk and (ii) an address of an alternative sector for the defective sector; reading pre-recorded information by accessing a designated address immediately in response to a read command; and reading the latest defect management information from the writable type disk only if the pre-recorded information cannot be reproduced after the recorded information in the information recording area of the designated address has been read.
Claim 5
Dependent Claim
63 words
A method according to claim 1, wherein said writable type disk driving apparatus has memory means for storing latest defect management information and wherein said in said reading operation, only in a case where the latest defect management information of said designated address is not stored in said memory means, said latest defect management information is read and stored into said memory means.
Claim 6
Dependent Claim
56 words
A method according to claim 1,wherein said writable type disk driving apparatus has memory means for storing latest defect management information wherein in said reading operation, only in a case where the latest defect management information is not stored in said memory means, said latest defect management information is read and stored into said memory means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-02 | 2000-01-01 | 2000-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-02 | 2004-01-01 | 2004-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-02 | 2008-01-01 | 2008-07-02 | $7700.00 | Window Closed / Lapsed |