INFORMATION PROCESSING DEVICE, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND PROGRAM

• US 20180032284A1
• Filed: 03/02/2016
• Published: 02/01/2018
• Est. Priority Date: 03/23/2015
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TERAO, Motohiro, NAGATOMO, Takashi, ANDO, Hideki
• Granted Patent: US 10,642,533 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/0604 Improving or facilitating administration, e.g. storage management
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0677 Optical disk device, e.g. CD-ROM, DVD
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 20/1889 with discs
• CPC Class Codes: G11B 2220/215 Recordable discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 7/24 Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the arrangement of information on the carrier G11B7/007
• CPC Class Codes: G11B 7/24038 Multiple laminated recording layers

Abstract

A configuration for reducing a possibility of data recording or reproduction being unperformable due to a reading error of disc management information is realized. A data processing unit records management information corresponding to a first surface as main management information on the first surface which is a data recording surface on which data recording is performed and further records mirror management information having the same content as the main management information on a second surface different from the first surface. The management information is, for example, a temporary disc management structure (TDMS) including defect region information of one surface of a disc. When one piece of management information between the main management information and the mirror management information is successfully read, data recording or reproduction can be correctly performed.

Claims

1. An information processing device comprising:

a data processing unit configured to record management information regarding a disc,

wherein the data processing unit

records management information corresponding to a first surface as main management information on the first surface which is a data recording surface on which data recording is performed and

further performs a process of recording mirror management information having the same content as the main management information on a second surface which is different from the first surface which is a data recording surface on which the data recording is performed.

2. The information processing device according to claim 1,

wherein the management information is a temporary disc management structure (TDMS) including defect region information of one surface of the disc.

3. The information processing device according to claim 2,

wherein the TDMS includes:

(a) a temporary disc definition structure (TDDS);

(b) sequential recording range information (SRRI); and

(c) a temporary defect list (TDFL)

as configuration data.

4. The information processing device according to claim 3,

wherein the data processing unit generates and records a TDMS including link information among the configuration data of the TDMS.

5. The information processing device according to claim 1,

wherein the data processing unit records two TDMSs of both surfaces of the disc in one cluster.

6. The information processing device according to claim 1,

wherein the data processing unit records a TDMS of one surface of the disc in one cluster.

7. The information processing device according to claim 1,

wherein the data processing unit records a TDMS of one surface of the disc in a plurality of clusters.

8. The information processing device according to claim 1,

wherein the disc is a recordable optical disc.

9. An information processing device comprising:

a data processing unit configured to perform a data reproduction process from a disc,

wherein the data processing unit

performs a process of reading main management information which is management information corresponding to a first surface from the first surface which is a data recording surface serving as a data reproduction target,

performs a process of reading mirror management information having the same content as the main management information from a second surface different from the first surface when a reading error of the main management information occurs, and

performs the data reproduction process from the first surface with reference to any of the main management information and the mirror management information.

10. The information processing device according to claim 9,

wherein the management information is a temporary disc management structure (TDMS) including defect region information of one surface of the disc.

11. The information processing device according to claim 10,

wherein the TDMS includes:

(a) a temporary disc definition structure (TDDS);

(b) sequential recording range information (SRRI); and

(c) a temporary defect list (TDFL)

as configuration data.

12. The information processing device according to claim 11,

wherein the data processing unit reads the configuration data of the TDMS with reference to link information among the configuration data of the TDMS.

13. The information processing device according to claim 9,

wherein the disc is a recordable optical disc.

14. A disc type information recording medium on which user data and management information are recorded,

wherein the management information is individual management information corresponding to each surface of a disc,

first surface management information corresponding to a first surface is recorded as main management information on the first surface, and

mirror management information having the same content as the main management information is recorded on a second surface different from the first surface.

15. The information recording medium according to claim 14,

wherein the management information is a temporary disc management structure (TDMS) including defect region information of one surface of the disc.

16. The information recording medium according to claim 15,

wherein the TDMS includes:

(a) a temporary disc definition structure (TDDS);

(b) sequential recording range information (SRRI); and

(c) a temporary defect list (TDFL)

as configuration data.

17. An information processing method of performing data recording control on a disc in an information processing device,

wherein the information processing device includes a data processing unit configured to record management information regarding the disc, and

the data processing unit

records management information corresponding to a first surface as main management information on the first surface which is a data recording surface on which data recording is performed and

further performs a process of recording mirror management information having the same content as the main management information on a second surface which is different from the first surface which is a data recording surface on which the data recording is performed.

18. An information processing method of performing data reproduction control from a disc in an information processing device,

wherein the information processing device includes a data processing unit configured to perform a data reproduction process from the disc, and

the data processing unit

performs a process of reading main management information which is management information corresponding to a first surface from the first surface which is a data recording surface serving as a data reproduction target,

performs a process of reading mirror management information having the same content as the main management information from a second surface different from the first surface when a reading error of the main management information occurs, and

performs the data reproduction process from the first surface with reference to any of the main management information and the mirror management information.

19. A program causing data recording control to be performed on a disc in an information processing device,

wherein the information processing device includes a data processing unit configured to record management information regarding the disc, and

the program causes the data processing unit to perform

a process of recording management information corresponding to a first surface as main management information on the first surface which is a data recording surface on which data recording is performed and

a process of recording mirror management information having the same content as the main management information on a second surface which is different from the first surface which is a data recording surface on which the data recording is performed.

20. A program causing data reproduction control from a disc to be performed in an information processing device,

wherein the information processing device includes a data processing unit configured to perform the data reproduction process from the disc, and

the program causes the data processing unit to perform

a process of reading main management information which is management information corresponding to a first surface from the first surface which is a data recording surface serving as a data reproduction target,

a process of reading mirror management information having the same content as the main management information from a second surface different from the first surface when a reading error of the main management information occurs, and

the data reproduction process from the first surface with reference to any of the main management information and the mirror management info