RECORDING MEDIUM HAVING DATA STRUCTURE FOR MANAGING RECORDING AND REPRODUCTION OF MULTIPLE PATH DATA RECORDED THEREON AND RECORDING AND REPRODUCING METHODS AND APPARATUS

• US 20110026906A1
• Filed: 10/05/2010
• Published: 02/03/2011
• Est. Priority Date: 06/28/2002
• Status: Active Grant

• Current Assignee: Byung Jin Kim, Kang Soo Seo, Mi Hyun Kim, Soung Hyun Um, Sung Ryun Cho, Sung Wan Park
• Original Assignee: Byung Jin Kim, Kang Soo Seo, Mi Hyun Kim, Soung Hyun Um, Sung Ryun Cho, Sung Wan Park
• Inventors: Um, Soung Hyun, Cho, Sung Ryun, Kim, Mi Hyun, Park, Sung Wan, Kim, Byung Jin, Seo, Kang Soo
• Granted Patent: US 8,554,060 B2
• Time in Patent Office: Days
• US Class Current: 386/353
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• 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 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

A method and apparatus for reproducing video data are discussed. According an embodiment, the apparatus includes a controller configured to receive a request of a path change, the controller configured to control the path change from a current path to the request path among the multiple reproduction paths by identifying path information in an entry point map, the path information associated with an entry point in the video data, and the entry point map having an entry point fine table including fine information of at least one entry point and an entry point coarse table including coarse information of the at least one entry point, the fine information and coarse information identifying a presentation time and an address for the at least one entry point

Claims

1. An apparatus for reproducing video data having multiple reproduction paths from a recording medium, comprising:

a controller configured to receive a request of a path change, the controller configured to control the path change from a current path to the request path among the multiple reproduction paths by identifying path information in an entry point map, the path information associated with an entry point in the video data,

and the entry point map having an entry point fine table including fine information of at least one entry point and an entry point coarse table including coarse information of the at least one entry point, the fine information and coarse information identifying a presentation time and an address for the at least one entry point.

2. The apparatus of claim 1, wherein the path information indicates whether the path change is permitted or not, and the path information further indicates where the path change is performed if the path change is permitted.

3. The apparatus of claim 1, further comprising a reproducing unit, operably coupled to the controller, configured to reproduce the video data from the recording medium,

wherein the controller is configured to control the reproducing unit to reproduce the video data.

4. The apparatus of claim 3, wherein the controller is configured to control the reproducing unit to read playlist file having at least one playitem and to read a clip information file including the entry point map from the recording medium, each playitem including an in-time and an out-time for identifying a reproducing interval of the video data.

5. An apparatus for reproducing video data having multiple reproduction paths from a recording medium, comprising:

a controller configured to receive a request of a path change from a current path to a request path among the multiple reproduction paths, the controller configured to determine a position where the path change is performed based on an entry point map, the position being associated with an entry point in the video data, the entry point map having an entry point fine table including fine information of at least one entry point and an entry point coarse table including coarse information of the at least one entry point, the fine information and coarse information identifying a presentation time and an address for the at least one entry point; and

the controller configured to control the path change based on the determination.

6. The apparatus of claim 5, wherein the controller is further configured to determine whether the path change is permitted based on path information in the entry point map, and the controller configured to determine the position if the path change is permitted.

7. The apparatus of claim 5, wherein the controller is further configured to determine the entry point based on the entry point find table and the entry point coarse table.

8. The apparatus of claim 5, further comprising a reproducing unit, operably coupled to the controller, configured to reproduce the video data from the recording medium,

wherein the controller is configured to control the reproducing unit to reproduce the video data.

9. The apparatus of claim 8, wherein the controller is configured to control the reproducing unit to read a playlist file having at least one playitem from the recording medium, each playitem including an in-time and an out-time for identifying a reproducing interval of the video data.

10. The apparatus of claim 8, wherein the controller is configured to control the reproducing unit to read a clip information file including the entry point map to determine the position from the recording medium.

11. A method for reproducing video data having multiple reproduction paths from a recording medium, comprising:

receiving a request of a path change from a current path to a request path among the multiple reproduction paths;

determining a position where the path change is performed based on an entry point map, the position being associated with an entry point in the video data, the entry point map having an entry point fine table including fine information of at least one entry point and an entry point coarse table including coarse information of the at least one entry point, the fine information and coarse information identifying a presentation time and an address for the at least one entry point; and

controlling the path change based on the determination.

12. The method of claim 11, further comprising:

determining whether the path change is permitted based on path information in the entry point map, and the controller configured to determine the position if the path change is permitted.

13. The method of claim 11, further comprising:

reading playlist file having at least one playitem from the recording medium, each playitem including an in-time and an out-time for identifying a reproducing interval of the video data.

14. The method of claim 11, further comprising:

reading a clip information file including the entry point map to determine the position from the recording medium.