Format for recording data in a storage disk
DC- US 6,738,333 B1
- Filed: 05/30/2000
- Issued: 05/18/2004
- Est. Priority Date: 05/30/2000
- Status: Expired due to Fees
First Claim
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1. A data storage disk comprising:
- a writeable area having a servo track, the writeable area including;
a writeable system area formed beginning adjacent to an inner boundary of the writeable area out toward the outer boundary of the writeable area as data is written to said writeable area;
a writeable data area formed beginning adjacent an outer boundary of the writeable area in toward the inner boundary of the writeable area as data is written to said writeable area, the writeable system area containing attributes of data stored in the writeable data area; and
a blank region separating the writeable system area and the writeable data area, said blank region decreasing in size as said data is written to said writeable area.
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Abstract
A data storage disk includes a writeable area that allows a user to write data, wherein the data files are written from the outside diameter towards the inside diameter of the writeable area, while file system information is written from the inside diameter towards the outside diameter of the writeable area. This optimizes the use of the writeable area, whether a large number of small data files or a small number of large data files are being stored. To further optimize the use of the writeable area, information may be stored in two or more different error correction code (ECC) block sizes. Thus, information, such as the file system attributes and linking sectors, which contains few bytes may be stored in the smaller ECC block size, while the data may be stored in the larger ECC block size. The data storage disk, may also include a mastered content area.
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Citations
18 Claims
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1. A data storage disk comprising:
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a writeable area having a servo track, the writeable area including;
a writeable system area formed beginning adjacent to an inner boundary of the writeable area out toward the outer boundary of the writeable area as data is written to said writeable area;
a writeable data area formed beginning adjacent an outer boundary of the writeable area in toward the inner boundary of the writeable area as data is written to said writeable area, the writeable system area containing attributes of data stored in the writeable data area; and
a blank region separating the writeable system area and the writeable data area, said blank region decreasing in size as said data is written to said writeable area. - View Dependent Claims (2, 3, 4)
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5. A data storage disk comprising:
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a writeable area, including;
a first portion configured to include a first group of error correction code (ECC) blocks of a first size;
a second portion configured to include a second group of ECC blocks of a second size; and
a blank region separating the first portion and the second portion, said blank region decreasing in size as said ECC blocks of each size is written to said writeable area. - View Dependent Claims (6, 7)
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8. A method of writing data on a disk comprising:
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providing a data storage disk having a writeable area including a writeable system area and a writeable data area, the writeable data area being located radially outward from the writeable system area, the writeable system area and the writeable data area being separated by a blank region;
writing file system information in a first portion of the blank region located adjacent the writeable system area; and
writing a data file in a second portion of the blank region located adjacent the writeable data area, said writing file system information in a first portion of the blank region and writing a data file in a second portion of the blank region causing the blank region to decrease in size until the first and second portions substantially meet. - View Dependent Claims (9, 10, 11)
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12. A method of writing data on a data storage disk, comprising:
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providing a data storage disk having a writeable area including a first annular region of recorded information and a second annular region of recorded information, the second annular region being located radially outward from the first annular region and being separated from the first annular region by an annular blank area;
reducing the size of the annular blank area by writing first information adjacent an outside edge of the first annular region; and
writing second information on the inside edge of the second annular region.
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13. A data storage disk comprising:
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a writeable area including an unwritten servo track wherein a user may write data using a data storage device including a write head;
a mastered area containing data formed in conjunction with the manufacture of the disk; and
a first buffer area separating the mastered area and the writeable area the mastered area located radially outside the writeable are, the first buffer area configured to decrease in size as data is written to said writeable area. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification
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Litigation Data
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Current AssigneeGATX Ventures, Inc. (GATX Corp.), Sequent Data LLC
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Original AssigneeDPHI Acquisitions, Inc.
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InventorsZaharris, Daniel R., Lee, Lane W., Keeler, Stanton M., Propps, Michael B.
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Primary Examiner(s)Dinh, Tan
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Assistant Examiner(s)LE, KIMLIEN T
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Application NumberUS09/583,448
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Time in Patent Office1,449 Days
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Field of Search369/59.25, 369/275.3, 369/53.21, 369/111
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US Class Current369/59.25
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CPC Class CodesG11B 20/00086 Circuits for prevention of ...G11B 20/1217 on discsG11B 20/18 Error detection or correcti...
