Recording medium, and method and apparatus for reproducing data from the recording medium

• US 20060184542A1
• Filed: 01/18/2006
• Published: 08/17/2006
• Est. Priority Date: 01/21/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yoo, Jea Yong, Kim, Byung Jin, Seo, Kang Soo, Kim, Kun Suk
• Granted Patent: US 7,668,844 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier

Abstract

A recording medium, and a method and apparatus for reproducing data from the recording medium are disclosed. A disc package for effectively reproducing data having different attributes recorded in the recording medium, and a method and apparatus for reproducing data of the recording medium and data downloaded from a content provider (CP) are disclosed. A first case in which the CP transmits an updated management file, and a second case in which a disc player forms an updated management file are disclosed.

Claims

1. A method for reproducing data of a recording medium comprising the steps of:

a) receiving updated data associated with the recording medium from a content provider (CP), and storing the received data in a local storage;

b) recognizing a binding unit associated with the recording medium from the local storage;

c) binding the binding unit with data of the recording medium, and forming a virtual package; and

d) reproducing the data recorded in the recording medium and/or data recorded in the local storage using the formed virtual package.

2. The method according to claim 1, wherein the updated data received from the content provider (CP) includes an index file and an object file.

3. The method according to claim 2, wherein the index and object files received from the content provider (CP) are equal to updated index and object files contained in the recording medium.

4. The method according to claim 1, wherein the index and object files received from the content provider (CP) are contained in the virtual package.

5. The method according to claim 2, wherein the binding unit includes the index file and the object file.

6. The method according to claim 1, wherein the virtual package includes a Java directory formed by a combination of a Java program file contained in the binding unit and a Java program file contained in the recording medium.

7. The method according to claim 1, wherein the local storage further includes binding information for use in the binding operation.

8. The method according to claim 1, wherein:

a virtual file system is adapted to form the virtual package and to reproduce data of the recording medium and/or data of the local storage using the formed virtual package.

9. The method according to claim 1, wherein the local storage includes a directory capable of identifying downloaded data.

10. The method according to claim 9, wherein the directory is equal to an “

org_ID”

directory for each content provider (CP) of the downloaded data.

11. The method according to claim 10, wherein the “

Org_ID”

directory further includes a “

Disc_id”

Directory for each recording medium.

18. The recording medium according to claim 1, wherein the first title is a HDMV title, and the second title is a Java title.

19. The recording medium according to claim 18, wherein the first object file is composed of a single movie object file (movieobject.bdmv).

20. The recording medium according to claim 18, wherein the second object file is composed of a plurality of Java object files (JavaObject.bdjo).

21. The recording medium according to claim 18, wherein the index file includes a first index file “

Index.bdmv”

equipped with the HDMV title and a second index file “

Index.bdj”

equipped with the Java title.

22. The recording medium according to claim 18, wherein the index file includes a first index file “

Index.bdmv”

for only the HDMV title and a second index file “

Index.bdj”

equipped with the HDMV title and the Java title.

12. A data transmission method when a content provider (CP) transmits data, the method comprising the steps of:

a) recognizing type information of a recording medium; and

b) transmitting index and object files capable of simultaneously reproducing original data recorded in the recording medium and additional data received from the content provider (CP).

13. An apparatus for reproducing data of a recording medium comprising:

a pickup unit for reading original data from a recording medium;

a local storage for storing additional data associated with the original data; and

a controller for forming a virtual file system to reproduce the original data and/or the additional data, and forming a virtual package equipped with the additional data associated with the original data using the virtual file system,

wherein the additional data downloaded in the local storage includes updated index and object files.

14. A method for reproducing data of a recording medium comprising the steps of:

a) reading a binding unit associated with a loaded recording medium from a local storage;

b) binding the binding unit with a file structure (i.e., a disc package) contained in the recording medium, and forming a virtual package including updated index and object files; and

c) reproducing the data recorded in the recording medium and/or data recorded in the local storage using the formed virtual package.

15. The method according to claim 14, wherein the updated index and object files contained in the virtual package include management information capable of simultaneously reproducing data recorded in the recording medium and data downloaded from a content provider (CP).

16. An apparatus for reproducing data of a recording medium using a local storage comprising:

a pickup unit for reading original data from a recording medium;

a local storage for storing additional data associated with the original data; and

a controller for forming a virtual file system to reproduce the original data and/or the additional data, and forming a virtual package capable of simultaneously reproducing the original data and the additional data using the virtual file system,

wherein the controller forms updated index and object files to simultaneously reproduce data recorded in the recording medium and data downloaded from a content provider (CP), and includes the updated index and object files in the virtual package.

17. A recording medium comprising:

a title record area in which a first title and a second title having different attributes are recorded; and

a management area in which a first management file for reproducing the first title and a second management file for reproducing the second title are recorded,

wherein the management area stores individual index files for reproducing the first title and the second title, and separately records at least one first object file equipped with a presentation scenario of the first title and at least one second object file equipped with a presentation scenario of the second title.

23. The recording medium according to claim 17, wherein the record area includes a Java program.