Recording/reproducing apparatus, recording/reproducing method and information storage medium using the same

• US 20060007826A1
• Filed: 06/23/2005
• Published: 01/12/2006
• Est. Priority Date: 07/12/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Hwang, Sung-hee, Ko, Jung-wan
• Application Number:
  US11/159,346
• Publication Number:
  US 20060007826A1
• Time in Patent Office: Days
• US Class Current: 369/53.200
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

An apparatus and method to record data on an optical recording information storage medium, an apparatus and method to reproduce data on an optical recording information storage medium, and an optical recording information storage medium using the same. The apparatus to record data on an optical recording information storage medium includes: a write unit which writes data on the medium; and a controller which compresses temporary disk management information (TDMI), which is information for managing the medium, and controls the write unit to write the compressed TDMI in a disk management area. Accordingly, since exhaustion of a temporary disk management area (TDMA) is delayed, the disk lifetime may be extended.

Claims

1. A recording apparatus to record data on an information storage medium, the apparatus comprising:

a write unit which writes the data on the medium; and

a controller which compresses temporary disk management information (TDMI), which is information to manage the medium, and controls the write unit to write the compressed TDMI in a disk management area of the information storage medium.

2. The apparatus of claim 1, wherein the compressed TDMI excludes a temporary disk definition structure (TDDS).

3. The apparatus of claim 2, wherein the controller separately compresses each item of information included in the TDMI.

4. The apparatus of claim 3, wherein the controller excludes header information when the TDMI is compressed.

27. The apparatus of claim 1, wherein the information storage medium is a write once disk.

5. A reproducing apparatus to reproduce data from an information storage medium, the apparatus comprising:

a read unit which reads the data from the medium; and

a controller which decompresses temporary disk management information (TDMI) written on the medium when the data written on the medium is reproduced, and uses the decompressed TDMI for data reproduction.

6. The apparatus of claim 5, wherein the compressed TDMI excludes a temporary disk definition structure (TDDS).

7. The apparatus of claim 6, wherein the controller separately decompress each item of information included in the TDMI.

8. The apparatus of claim 7, wherein the controller excludes header information when the TDMI is decompressed.

9. An information storage medium in which temporary disk management information (TDMI) is compressed and recorded in a disk management area.

10. The medium of claim 9, wherein the compressed TDMI excludes a temporary disk definition structure (TDDS).

11. The medium of claim 10, wherein each item of information included in the TDMI is separately compressed and written.

12. The medium of claim 11, wherein header information is excluded when the TDMI is compressed.

13. A disk drive to record and reproduce information to and from a disk, comprising:

a servo controlled pickup to read/write information from/to the disk;

an interface (I/F) to receive a write command or a read command from a host;

a digital signal processor (DSP) to add additional data to correct errors to data to be updated, to generate a data output including an error correction (ECC) block, and to compress or decompress temporary disk management information;

a radio frequency amplifier (RF AMP) to convert the data output from the DSP to an RF signal which is written onto the disk by the pickup; and

a controller to control the pickup, the interface, the DSP and the RF AMP to record and reproduce information to and from the disk.

14. A digital signal processor (DSP) of a recording/reproducing apparatus to record/reproduce information to/from a disk including a temporary disk management area (TDMA), comprising:

a modulator/demodulator to demodulate compressed temporary disk management information (TDMI);

an interleaver/deinterleaver to deinterleave the demodulated TDMI;

an error correction (ECC) encoder/decoder to ECC decode the deinterleaved TDMI;

a scrambler/descrambler to descramble the ECC decoded TDMI; and

a TDMI compression encoder/decoder to decompress the descrambled TDMI, wherein the DSP also operates in a reverse direction to compress and store the TDMI.

15. The DSP according to claim 14, wherein the TDMI compression encoder/decoder employs one of Run Length Encoding (RLE) and Huffman coding.

16. The DSP according to claim 14, wherein one of a lossy and a lossless compression scheme is used.

17. The DSP according to claim 14, wherein, when the TDMI is compressed, data that is obtained by excluding the temporary disk definition structure (TDDS) from the TDMI is compressed.

18. The DSP according to claim 14, wherein a size of the TDMI is variable, to cause an increase in the number of updating counts of the TDMI.

19. The DSP according to claim 14, wherein each item of information of the TDMI is compressed separately.

20. The DSP according to claim 19, wherein a space bit map (SBM) and recording management information of the TDMI are compressed separately.

21. The DSP according to claim 20, wherein, if the size of each compressed item of information is not a multiple of a block or sector unit, the size of each compressed item of information is made to be a multiple of the block or sector unit by adding dummy data.

22. The DSP according to claim 21, wherein, when each item of information included in the TDMI is compressed, each item of information, from which header information of each of the items of information is excluded, is compressed.

23. The DSP according to claim 22, wherein an identifier is stored at a specific location of a header of each item of information.

24. The DSP according to claim 23, wherein the identifier determines which information a reproduced block is from the header information before each item of information is decompressed when each item of information is reproduced.

25. A lead-in area of a disk structure, including a disk management area and a temporary disk management area (TDMA) to record information on temporary defect management and temporary disk management, the information comprising:

a temporary defect list (TDFL) including a defect list of defect state information, location information of a defect sector of the disk, and location information of a replacement sector of the disk;

a space bit map (SBM) in a random recording mode to indicate whether clusters of a user data area are recorded using a bit value or recording management information in a sequential recording mode; and

a temporary disk definition structure (TDDS) including location pointers of the TDFL, the SBM, and a drive area, location and size information of spare areas that are assigned in an initializing operation, write protection information, location and size information of the TDMA assigned in a data area, information on the user data area, information on a replaceable location in each spare area, and a last recording address in the user data area, wherein the TDFL and the SBM are separately compressed and the TDSS is not compressed.

26. A data recording method to be used with a storage medium of a recording/reproducing apparatus, the method comprising:

generating temporary disk management information (TDMI) of the storage medium;

if an update of the TDMI is requested, performing an addition of data or a logical overwrite of the TDMI; and

compressing, scrambling, error correction (ECC) encoding, interleaving, and modulating the updated TDMI, wherein the method is operable in reverse so as to reproduce the data.