CONTENTS REPRODUCTION APPARATUS, CONTENTS REPRODUCTION METHOD, AND CONTENTS REPRODUCTION PROGRAM

• US 20080168084A1
• Filed: 07/02/2007
• Published: 07/10/2008
• Est. Priority Date: 07/11/2006
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TAMURA, Takashi, NARA, Hitoshi
• Granted Patent: US 8,103,699 B2
• Time in Patent Office: Days
• US Class Current: 707/102
• CPC Class Codes: G06F 16/41 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content storing computer data in solid state memories G06F
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

The present invention provides a contents reproduction apparatus which includes a file identifier generation unit that generates file identifiers that uniquely determine a plurality of contents files respectively which are hierarchically stored in an external storage device, an identification information generation unit that generates identification information to identify the respective contents files based on part of additional data related to the contents files and the file identifiers, a list forming unit that forms a list by re-arraying the identification information with the part of additional data set as the re-array condition, and a reproduction unit that reads out and reproduces the contents files which are identified by the file identifiers of the respective identification information from the external storage device in accordance with the order of the identification information in the list.

Claims

1. A contents reproduction apparatus comprising:

file identifier generation means for generating file identifiers that uniquely determine a plurality of contents files respectively which are hierarchically stored in an external storage device;

identification information generation means for generating identification information to identify the respective contents files based on part of additional data related to the contents files and the file identifiers;

list forming means for forming a list by re-arraying the identification information with the part of additional data set as the re-array condition; and

reproduction means for reading out and reproducing the contents files which are identified by the file identifiers of the respective identification information from the external storage device in accordance with the order of the identification information in the list.

2. The contents reproduction apparatus according to claim 1, wherein the file identifier generation means sets a hierarchy cyclic order in hierarchy cyclic processing in which the cyclic order with respect to the plural contents files is uniquely determined to the file identifier.

3. The contents reproduction apparatus according to claim 1, further comprising:

list storage means for string the list in the external storage device.

4. The contents reproduction apparatus according to claim 3, further comprising:

deleting means for deleting the list from the external storage device before being separated from the external storage device.

5. The contents reproduction apparatus according to claim 4, wherein the deleting means deletes the list from the external storage device before the power is turned off.

6. The contents reproduction apparatus according to claim 1, wherein

the list forming means forms a plurality of lists with a plurality of kinds of the additional data set as the re-array conditions respectively, and

the reproduction means reproduces the contents files in the order conforming to the list which is selected by the user from among the plural lists.

7. The contents reproduction apparatus according to claim 1, wherein the reproduction means reproduces the plural contents files stored in the external storage device in a readable order while the list forming means forms the list.

8. The contents reproduction apparatus according to claim 1, wherein the list forming means re-forms the list in case the number of the identification information contained in the list which has already been stored in the external storage device and the number of the contents files which are actually stored in the external storage device are different.

9. A contents reproduction method comprising:

a file identifier generation step of generating file identifiers that uniquely determine a plurality of contents files respectively which are hierarchically stored in an external storage device;

an identification information generation step of generating identification information to identify the respective contents files based on part of additional data related to the contents files and the file identifiers;

a list forming step of forming a list by re-arraying the identification information with the part of additional data set as the re-array condition; and

a reproduction step of reading out and reproducing the contents files which are identified by the file identifiers of the respective identification information from the external storage device in accordance with the order of the identification information in the list.

10. The contents reproduction method according to claim 9, wherein the file identifier generation step sets a hierarchy cyclic order in hierarchy cyclic processing in which the cyclic order with respect to the plural contents files is uniquely determined to the file identifier.

11. The contents reproduction method according to claim 9, further comprising:

a list storage step of string the list in the external storage device.

12. The contents reproduction method according to claim 11, further comprising:

a deleting step of deleting the list from the external storage device before being separated from the external storage device.

13. The contents reproduction method according to claim 12, wherein the deleting step deletes the list from the external storage device before the power is turned off.

14. The contents reproduction method according to claim 9, wherein

the list forming step forms a plurality of lists with a plurality of kinds of the additional data set as the re-array conditions respectively, and

the reproduction step reproduces the contents files in the order conforming to the list which is selected by the user from among the plural lists.

15. The contents reproduction method according to claim 9, wherein the reproduction step reproduces the plural contents files stored in the external storage device in a readable order while the list forming step forms the list.

16. A contents reproduction apparatus comprising:

a file identifier generation unit that generates file identifiers that uniquely determine a plurality of contents files respectively which are hierarchically stored in an external storage device;

an identification information generation unit that generates identification information to identify the respective contents files based on part of additional data related to the contents files and the file identifiers;

a list forming unit that forms a list by re-arraying the identification information with the part of additional data set as the re-array condition; and

a reproduction unit that reads out and reproduces the contents files which are identified by the file identifiers of the respective identification information from the external storage device in accordance with the order of the identification information in the list.