Recording medium having a data structure for managing a data stream recorded on the recording medium and recording and reproducing methods and apparatuses

• US 20040223743A1
• Filed: 06/18/2004
• Published: 11/11/2004
• Est. Priority Date: 05/23/2000
• Status: Active Grant

• Current Assignee: Byung-Jin Kim, Hyung-Sun Kim, Jea-Yong Yoo, Kang-Soo Seo
• Original Assignee: Byung-Jin Kim, Hyung-Sun Kim, Jea-Yong Yoo, Kang-Soo Seo
• Inventors: Seo, Kang-Soo, Yoo, Jea-Yong, Kim, Hyung-Sun, Kim, Byung-Jin
• Granted Patent: US 7,555,200 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 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical discs]
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

The recording medium includes a data structure having a navigation map. The navigation map includes a number of map entries and indicates the number of map entries. Each map entry maps presentation time with location information for a segment of the data stream stored on the recording medium. The navigation map also includes multi-path information when the data stream includes segments representing multiple reproduction paths.

Claims

1. A recording medium having a data structure for managing a data stream recorded on the recording medium, comprising:

a navigation area storing a navigation map, the navigation map including a number of map entries and indicating the number of map entries, each map entry mapping presentation time with location information for a segment of the data stream stored on the recording medium, and the navigation map including multi-path information when the data stream includes segments representing multiple reproduction paths.

2. The recording medium of claim 1, wherein the location information points to a start of the segment on the recording medium.

3. The recording medium of claim 2, wherein the presentation time indicates a start presentation time of the segment.

4. The recording medium of claim 1, wherein the presentation time indicates a start presentation time of the segment.

5. The recording medium of claim 1, wherein at least two map entries for segments representing different reproduction paths of the data stream have a same presentation time.

6. The recording medium of claim 1, wherein the multi-path information indicates segments associated with a multiple reproduction path portion of the data stream.

7. The recording medium of claim 1, further comprising:

a data area storing the data stream.

8. The recording medium of claim 7, wherein portions of the data stream associated with different reproduction paths are in different segments.

9. The recording medium of claim 7, wherein at least a number of the segments representing different reproduction paths are interleaved in the data area.

10. The recording medium of claim 1, wherein the multiple reproduction paths are multiple camera angles.

11. A method of managing a data stream recorded on a recording medium, comprising:

reproducing a navigation map recorded on the recording medium, the navigation map including a number of map entries and indicating the number of map entries, each map entry mapping presentation time with location information for a segment of the data stream stored on the recording medium, and the navigation map including multi-path information when the data stream includes segments representing multiple reproduction paths.

12. The method of claim 11, further comprising:

determining a location to begin reproducing the data stream based on the navigation map.

13. The method of claim 12, wherein the determining step determines the location based on the navigation map and a target starting presentation time.

14. A reproduction apparatus, comprising:

a driver for driving an optical reproducing device to reproduce data recorded on the recording medium;

a controller for controlling the driver to reproduce a navigation map recorded on the recording medium, the navigation map including a number of map entries and indicating the number of map entries, each map entry mapping presentation time with location information for a segment of a data stream stored on the recording medium, and the navigation map including multi-path information when the data stream includes segments representing multiple reproduction paths.

15. The apparatus of claim 14, wherein the controller determines a location to begin reproducing the data stream based on the navigation map.

16. The apparatus of claim 15, wherein the controller determines the location based on the navigation map and a target starting presentation time.

17. A method of recording a data structure for managing a data stream on a recording medium, comprising:

recording a navigation map on the recording medium, the navigation map including a number of map entries and indicating the number of map entries, each map entry mapping presentation time with location information for a segment of the data stream stored on the recording medium, and the navigation map including multi-path information when the data stream includes segments representing multiple reproduction paths.

18. An apparatus for recording a data structure for managing a data stream on a recording medium, comprising:

a driver for driving an optical recording device to record data on the recording medium;

a controller for controlling the driver to record a navigation map on the recording medium, the navigation map including a number of map entries and indicating the number of map entries, each map entry mapping presentation time with location information for a segment of the data stream stored on the recording medium, and the navigation map including multi-path information when the data stream includes segments representing multiple reproduction paths.