RECORDING MEDIUM, METHOD AND APPARATUS FOR REPRODUCING DATA ON THE RECORDING MEDIUM, AND METHOD AND APPARATUS FOR RECORDING DATA ON THE RECORDING MEDIUM

• US 20110085426A1
• Filed: 12/20/2010
• Published: 04/14/2011
• Est. Priority Date: 11/17/2006
• Status: Active Grant

• Current Assignee: Joon-Hwan Kwon, Kyung-Geun Lee, Sung-Hee Hwang
• Original Assignee: Joon-Hwan Kwon, Kyung-Geun Lee, Sung-Hee Hwang
• Inventors: Hwang, Sung-hee, Kwon, Joon-hwan, Lee, Kyung-geun
• Granted Patent: US 8,295,149 B2
• Time in Patent Office: Days
• US Class Current: 369/30.03
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 2020/1221 cluster, i.e. a data structure which consists of a fixed number of sectors or ECC blocks
• CPC Class Codes: G11B 2020/1222 ECC block, i.e. a block of error correction encoded symbols which includes all parity data needed for decoding
• CPC Class Codes: G11B 2020/1267 Address data
• CPC Class Codes: G11B 2020/1823 wherein a flag is set when errors are detected or qualified
• CPC Class Codes: G11B 2020/1846 using a picket code, i.e. a code in which a long distance code [LDC] is arranged as an array and columns containing burst indicator subcode [BIS] are multiplexed for erasure decoding
• CPC Class Codes: G11B 2020/1893 using linear replacement to relocate data from a defective block to a non-contiguous spare area, e.g. with a secondary defect list [SDL]
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical discs]

Abstract

A recording medium on which data is recorded in units of clusters, a method and apparatus for reproducing data on the recording medium, and a method and apparatus for recording data on the recording medium, wherein each of the clusters includes a plurality of address fields, each address field includes 32-bit address unit number (AUN) address information, and the AUN address information includes a reserved area recorded on 4 bits, layer information, recorded on 3 bits, indicating a layer on which data corresponding to the AUN address information is recorded, and location information, recorded on 25 bits, indicating a location of the data corresponding to the AUN address information. In the recording medium of the present invention, a space in which addresses are recorded is expanded, thereby securing an address area in which addresses of data can be recorded in a data structure.

Claims

1. A recording medium on which data is recorded in units of clusters to be read by a recording and/or reproducing apparatus, wherein:

each of the clusters comprises a plurality of address fields;

each of the address fields comprises 32-bit address unit number (AUN) address information; and

the AUN address information comprises;

a reserved area recorded in 4 bits;

layer information, recorded in 3 bits, used by the apparatus to determine a layer on which data corresponding to the AUN address information is recorded; and

location information, recorded in 25 bits, used by the apparatus to determine a location of the data corresponding to the AUN address information.

2. The recording medium as claimed in claim 1, wherein each of the clusters further comprises a plurality of sectors;

and

each of the address fields is allocated to a respective two sectors of the plurality of sectors.

3. The recording medium as claimed in claim 2, wherein the plurality of address fields in each of the clusters comprises 16 address fields.

4. The recording medium as claimed in claim 1, wherein the reserved area comprises state information of defects occurring on the recording medium.

5. The recording medium as claimed in claim 1, wherein each of the address fields further comprises:

1-byte flag information; and

4-byte parity information for the corresponding address field.

6. The recording medium as claimed in claim 5, wherein the 1-byte flag information comprises additional information other than address information of a cluster.

7. The recording medium as claimed in claim 6, wherein the 1-byte flag information comprises information on a date and a time when the data corresponding to the AUN address information was recorded.

8. The recording medium as claimed in claim 1, wherein the reserved area is recorded in a highest-order 4 bits;

and

the layer information is recorded in 3 bits next to the highest-order 4 bits.

9. A method of reproducing data from a recording medium on which the data is recorded in units of clusters, the method comprising:

moving an optical head unit to a target location of the recording medium at which data corresponding to address unit number (AUN) address information is recorded; and

reproducing the data at the target location of the recording medium;

wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit AUN address information, and the AUN address information comprises;

a reserved area recorded in 4 bits;

layer information, recorded in 3 bits, indicating a layer on which the data corresponding to the AUN address information is recorded; and

location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

10. The method as claimed in claim 9, wherein the reserved area is recorded in a highest-order 4 bits;

and

the layer information is recorded in 3 bits next to the highest-order 4 bits.

11. An apparatus for reproducing data from a recording medium on which the data is recorded in units of clusters, the apparatus comprising:

a control unit to move an optical head unit to a target location of the recording medium at which data corresponding to address unit number (AUN) address information is recorded; and

a pickup unit to reproduce the data at the target location of the recording medium;

wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit AUN address information, and the AUN address information comprises;

a reserved area recorded in 4 bits;

layer information, recorded in 3 bits, indicating a layer on which the data corresponding to the AUN address information is recorded; and

location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

12. The apparatus as claimed in claim 11, wherein the reserved area is recorded in a highest-order 4 bits;

and

the layer information is recorded in 3 bits next to the highest-order 4 bits.

13. A method of recording data on a recording medium in units of clusters, the method comprising:

generating a cluster comprising addresses and data; and

recording the generated cluster on the recording medium;

wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit address unit number (AUN) address information, and the AUN address information comprises;

a reserved area recorded in 4 bits;

layer information, recorded in 3 bits, indicating a layer on which data corresponding to the AUN address information is recorded; and

location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

14. The method as claimed in claim 13, wherein the reserved area is recorded in a highest-order 4 bits;

and

the layer information is recorded in 3 bits next to the highest-order 4 bits.

15. An apparatus for recording data on a recording medium in units of clusters, the apparatus comprising:

a signal processing unit to generate a cluster comprising addresses and data; and

a pickup unit to record the generated cluster on the recording medium;

wherein the cluster comprises a plurality of address fields, each of the address fields comprises 32-bit address unit number (AUN) address information, and the AUN address information comprises;

a reserved area recorded in 4 bits;

layer information, recorded in 3 bits, indicating a layer on which data corresponding to the AUN address information is recorded; and

location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

16. The apparatus as claimed in claim 15, wherein the reserved area is recorded in a highest-order 4 bits;

and

the layer information is recorded in 3 bits next to the highest-order 4 bits.