Recording medium containing moving picture data and additional information thereof and reproducing method and apparatus of the recording medium

• US 20020176693A1
• Filed: 05/10/2002
• Published: 11/28/2002
• Est. Priority Date: 05/12/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Um, Soung Hyun, Kim, Mi Hyun, Park, Sung Wan, Yoo, Jea Yong, Kim, Byung Jin, Cho, Jang Hui, Seo, Kang Soo
• Granted Patent: US 7,646,965 B2
• Time in Patent Office: Days
• US Class Current: 386/95
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/22 Means responsive to presence or absence of recorded information signals
• CPC Class Codes: G11B 27/30 on the same track as the main recording
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/87 Regeneration of colour television signals H04N9/80 takes precedence

Abstract

The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

Claims

1. A recording medium, comprising:

moving picture data;

additional information, written in the form of file, related with said moving picture data; and

link information linking said at least one link information file with said moving picture data.

2. The recording medium of claim 1, wherein said link information is written in the same area where said additional information is written.

3. The recording medium of claim 1, wherein said link information is composed of at least one link entry which consists of a recording address of an additional information file and an address of a start video object unit of moving picture data section to be presented together with contents of the additional information file.

4. The recording medium of claim 1, wherein said link information is composed of at least one link entry which consists of a filename of an additional information file and an address of a start video object unit of moving picture data section to be presented together with contents of the additional information file.

5. The recording medium of claim 1, wherein said link information file is associated one-to-one with program chain information which specifies a program section of the moving picture data and has reproduction-controlling information for the program section.

6. The recording medium of claim 5, wherein said link information file has filename identified by order of associated program chain information.

7. The recording medium of claim 5, wherein said program chain information includes a flag indicative of whether there is additional information associated with the program section or not.

8. The recording medium of claim 7, wherein said flag is 1-bit long and is allocated in a program chain content field of said program chain information.

9. A method of reproducing a recording medium, comprising the steps of:

(a) determining whether there is at least one file including additional information for moving picture data on the recording medium;

(b) selecting link information linking said at least one link information file with at least one section of moving picture data based on the determination result, reading the selected link information from the recording medium, and storing the read link information into storage means other than the recording medium; and

(c) searching for an additional information file linked with presently reproduced moving picture data with reference to the stored link information, and outputting contents of the found additional information file together with moving picture data.

10. The method of claim 9, wherein said step (a) determines whether there is at least one file including additional information or not based on value of a 1-bit flag allocated in a program chain content field of program chain information written on the recording medium.

11. The method of claim 9, wherein said step (b) further determines that there is no additional information associated with said at least one section of moving picture data if the selected link information is not found.

12. The method of claim 9, wherein said link information is composed of at least one link entry which consists of a recording address or a filename of an additional information file and an address of a start video object unit of moving picture data section to be presented together with contents of the additional information file.

13. The method of claim 9, wherein said step (c) searches the stored link information for an address equal to or closest to and smaller than an address of presently reproduced video object unit, searches for an additional information file written at a recording address linked with the found address or named with the found address, and outputs contents of the found additional information file together with moving picture data.

14. The method of claim 9, wherein said link information file is associated one-to-one with program chain information which specifies a program section of the moving picture data and has reproduction-controlling information for the program section.

15. The method of claim 14, wherein said link information file has filename identified by order of associated program chain information.

16. An apparatus of reproducing a recording medium, comprising:

a data pickup reading data recorded on the recording medium;

a data storage for storing link information, read by said data pickup, linking at least one file, which includes additional information about moving picture data recorded on the recording medium, with moving picture data; and

a controller searching for an additional information file linked with presently reproduced moving picture data based on the link information stored in said data storage, and having contents of the found additional information file presented.