Recording medium having data structure for managing playback control and recording and reproducing methods and apparatuses

• US 7,606,463 B2
• Filed: 02/23/2004
• Issued: 10/20/2009
• Est. Priority Date: 02/24/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Byung Jin, Seo, Kang Soo
• Primary Examiner(s): Tran; Thai
• Assistant Examiner(s): DUNN, MISHAWN N
• Application Number:
  US10/782,866
• Publication Number:
  US 20040165861A1
• Time in Patent Office: 2,066 Days
• Field of Search: 386/69, 386/95, 386/96, 386/111, 386/126, 386/92, 386/125, 369/30.05, 369 531- 533, 369/275.3
• US Class Current: 386/248
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/216 Rewritable discs
• 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 27/105 of operating discs
• 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 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

The data structure on the recording medium includes a navigation area storing an information file. The information file includes a plurality of navigation segments representing one or more reproduction paths of a title. Each of the navigation segments includes at least one navigation command, and a number of the navigation segments each include a navigation command for launching a playlist. One of the navigation segments is an entry navigation segment of the title.

Claims

1. A recording medium having a data structure for managing playback control of video data having multiple reproduction paths, comprising:

a data area storing a stream file including the video data;

a playlist area storing a first playlist file and a second playlist file including at least one playitem identifying a playing interval in a clip of the video data respectively, the first and second playlist files identifying video data of different reproduction paths from each other, and the playing interval including an IN-point and OUT-point indicating positions of the clip; and

a navigation area storing a navigation file including first and second navigation segments, the first navigation segment and the second navigation segment including a first navigation command and a second navigation command launching the first playlist file and the second playlist file respectively such that the first navigation segment and the second navigation segment represent different reproduction paths of a title of the video data, where the stream file, the first and second playlist files, and the navigation file are separate from each other.

2. The recording medium of claim 1, wherein the multiple reproduction paths constitute a branch structure.

3. The recording medium of claim 2, wherein a branch point of the branch structure is a boundary of the playlist file.

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

a clip information file area storing at least one clip information file associated with the stream file.

5. A method of recording a data structure for managing playback control of video data having multiple reproduction paths on a recording medium, comprising:

recording a stream file including the video data in a data area of the recording medium;

recording a first playlist file and a second playlist file including at least one playitem identifying a playing interval in a clip of the video data respectively in a playlist area of the recording medium, the first and second playlist files identifying video data having different reproduction paths from each other, and the playing interval including an IN-point and OUT-point indicating positions of the clip; and

recording a navigation file including a first and second navigation segments in a navigation area of the recording medium, the first navigation segment and the second navigation segment including a first navigation command and a second navigation command launching the first playlist file and the second playlist file respectively such that the first navigation segment and the second navigation segment represent different reproduction paths of a title of the video data, where the stream file, the first and second playlist files, and the navigation file are separate from each other.

6. The method of claim 5, wherein the multiple reproduction paths constitute a branch structure.

7. The method of claim 5, wherein a branch point of the branch structure is a boundary of the playlist file.

8. A method of reproducing a data structure for managing playback control of video data having multiple reproduction paths recorded in a recording medium, comprising:

reproducing a stream file of the video data from a data area of the recording medium;

reproducing a first playlist file and a second playlist file including at least one playitem identifying a playing interval in a clip of the video data respectively from a playlist area of the recording medium, the first and second playlist files identifying video data having different reproduction paths from each other, and the playing interval including an IN-point and OUT-point indicating positions of the clip; and

reproducing a navigation file including a first and a second navigation segments from a navigation area of the recording medium, the first navigation segment and the second navigation segment including a first navigation command and a second navigation command launching the first playlist file and the second playlist file respectively such that the first navigation segment and the second navigation segment represent different reproduction paths of a title of the video data, where the stream file, the first and second playlist files, and the navigation file are separate from each other.

9. The method of claim 8, wherein the multiple reproduction paths constitute a branch structure.

10. The method of claim 8, wherein a branch point of the branch structure is a boundary of the playlist file.

11. An apparatus for recording a data structure for managing playback control of video data having multiple reproduction paths on a recording medium, comprising:

a pickup configured to record a stream file of the video data in a data area of the recording medium; and

a controller configured to control the pickup to record a first playlist file and a second playlist file including at least one playitem identifying a playing interval in a clip of the video data respectively in a playlist area of the recording medium, the first and second playlist files identifying video data having different reproduction paths from each other, and the playing interval including an IN-point and OUT-point indicating positions of the clip, and to record a navigation file including a first and a second navigation segments in a navigation area of the recording medium, the first navigation segment and the second navigation segment including a first navigation command and a second navigation command launching the first playlist file and the second playlist file respectively such that the first navigation segment and the second navigation segment represent different reproduction paths of a title of the video data, where the stream file, the first and second playlist files, and the navigation file are separate from each other.

12. The apparatus of claim 11, wherein the multiple reproduction paths constitute a branch structure.

13. An apparatus for reproducing a data structure for managing playback control of video data having multiple reproduction paths recorded in a recording medium, comprising:

a pickup configured to reproduce a stream file of the video data from a data area of the recording medium; and

a controller configured to control the pickup to reproduce a first playlist file and a second playlist file including at least one playitem identifying a playing interval in a clip of the video data respectively from a playlist area of the recording medium, the first and second playlist files identifying video data having different reproduction paths from each other, and the playing interval including an IN-point and OUT-point indicating positions of the clip, and to reproduce a navigation file including first and second navigation segments from a navigation area of the recording medium, the first navigation segment and the second navigation segment including a first navigation command and a second navigation command launching the first playlist file and the second playlist file respectively such that the first navigation segment and the second navigation segment represent different reproduction paths of a title of the video data, where the stream file, the first and second playlist files, and the navigation file are separate from each other.

14. The apparatus of claim 13, wherein the multiple reproduction paths constitute a branch structure.