Patent US5506823A successfully refreshed from Google Patents.
US5506823A
Expired / Lapsed
US
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Data recording and reproducing methods
Assignee: Sony Corp
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Filing: 1994-12-08
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Granted: 1996-04-09
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Expires: 2014-12-08
Abstract
Abstract A digital data reproducing method is for reproducing data from a disc-shaped storage medium. Recorded on the disc-shaped recording medium is a designated reproducing unit size that is one of a plurality of possible reproducing unit sizes. The disc-shaped storage medium also has recorded thereon address information that includes repetitions of a plurality of sectors. The disc-shaped storage medium is rotated at a constant linear velocity and the designated reproducing unit size is reproduced from the disc-shaped storage medium. Then, data is reproduced from the disc-shaped storage medium in accordance with the address information and in increments of substantially the designated reproducing unit size such that each increment of data reproduced from the disc-shaped storage medium includes a plurality of sectors, including linking and data recording sectors. The designated data reproducing unit size is not greater than the number of repeated sectors of address information.
Inventors
- 👤 Shinji Sanada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:08
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B20/00; G11B20/10; G11B20/12; G11B20/1217; G11B20/1251; G11B20/18; G11B20/1806; G11B20/1809; G11B20/1876; G11B2020/1264; G11B2020/1265; G11B2020/1277; G11B7/00; G11B7/08; G11B7/09; G11B7/0946
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
An apparatus for reproducing digital data from a disc-shaped storage medium, the disc-shaped storage medium having recorded thereon a designated data reproducing unit size that is one of a plurality of possible reproducing unit sizes and the disc-shaped storage medium also having recorded thereon address information that includes repetitions of a plurality of sectors, comprising: means for rotating the disc-shaped storage medium at a constant linear velocity; means for reproducing the designated data reproducing unit size from the disc-shaped storage medium; and means for reproducing data from the disc-shaped storage medium in accordance with the address information and in increments of substantially the designated reproducing unit size such that each increment of data reproduced from the disc-shaped storage medium includes a plurality of sectors, including linking and data recording sectors, wherein the designated data reproducing unit size is not greater than the number of repeated sectors of address information.
Claim 2
Independent Claim
149 words
An apparatus for reproducing digital data from a disc-shaped storage medium, the disc-shaped storage medium having recorded thereon a designated data reproducing unit size that is one of a plurality of possible reproducing unit sizes and the disc-shaped storage medium also having recorded thereon address information that includes repetitions of a plurality of sectors, comprising: means for rotating the disc-shaped storage medium at a constant linear velocity; means for reproducing the designated data reproducing unit size from the disc-shaped storage medium; and means for reproducing data from the disc-shaped storage medium in accordance with the address information and in increments of substantially the designated reproducing unit size such that each increment of data reproduced from the disc-shaped storage medium includes a plurality of sectors, including linking and data recording sectors, wherein the designated data reproducing unit size is not greater than the number of repeated sectors of address information.
Claim 3
Dependent Claim
82 words
A digital data reproducing apparatus according to claim 1, wherein the disc-shaped storage medium also has identification data previously recorded thereon in a protected manner, the identification data being read upon data reproduction from the disc-shaped storage medium to identify the type of the storage medium, and wherein the designated reproducing unit is read from a predetermined location of the disc-shaped recording medium only if the read-out identification data reveals that the disc-shaped storage medium is one having digital data recorded thereon.
Claim 4
Independent Claim
145 words
A method of reproducing digital data from a disc-shaped storage medium, the disc-shaped storage medium having recorded thereon a designated data reproducing unit size that is one of a plurality of possible reproducing unit sizes and the disc-shaped storage medium also having recorded thereon address information that includes repetitions of a plurality of sectors, the method comprising: rotating the disc-shaped storage medium at a constant linear velocity; reproducing the designated data reproducing unit size from the disc-shaped storage medium; and reproducing data from the disc-shaped storage medium in accordance with the address information and in increments of substantially the designated reproducing unit size such that each increment of data reproduced from the disc-shaped storage medium includes a plurality of sectors, including linking and data recording sectors, wherein the designated data reproducing unit size is not greater than the number of repeated sectors of address information.
Claim 5
Independent Claim
145 words
A method of reproducing digital data from a disc-shaped storage medium, the disc-shaped storage medium having recorded thereon a designated data reproducing unit size that is one of a plurality of possible reproducing unit sizes and the disc-shaped storage medium also having recorded thereon address information that includes repetitions of a plurality of sectors, the method comprising: rotating the disc-shaped storage medium at a constant linear velocity; reproducing the designated data reproducing unit size from the disc-shaped storage medium; and reproducing data from the disc-shaped storage medium in accordance with the address information and in increments of substantially the designated reproducing unit size such that each increment of data reproduced from the disc-shaped storage medium includes a plurality of sectors, including linking and data recording sectors, wherein the designated data reproducing unit size is not greater than the number of repeated sectors of address information.
Claim 6
Dependent Claim
82 words
A digital data reproducing method according to claim 3, wherein the disc-shaped storage medium also has identification data previously recorded thereon in a protected manner, the identification data being read upon data reproduction from the disc-shaped storage medium to identify the type of the storage medium, and wherein the designated reproducing unit is read from a predetermined location of the disc-shaped recording medium only if the read-out identification data reveals that the disc-shaped storage medium is one having digital data recorded thereon.
References Cited (Backward Citations)
US5060219A
Cited
US5224087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |