Claims
- 1. An optical disc comprising:a data area storing a plurality of video objects each of which has at least one moving picture data stream and a plurality of sub-data streams to be decoded with said moving picture data stream selectively, each of said sub-data streams having identification indicia therein; and a management information area storing a plurality of program chain information which indicates a reproduction order of said video objects and a sub-data control information table indicating, for each of a plurality of program chain logical sub-data numbers, the identification indicia of one of said plurality of sub-data streams to be decoded in each of said video objects which are indicated by one of said plurality of program chain information.
- 2. The optical disc according to claim 1, wherein the sub-data control information table includes a flag, for each of the plurality of logical sub-data numbers, which indicates whether a corresponding logical sub-data number is effective or not.
- 3. The optical disc according to claim 1, wherein the plurality of said sub-data streams are one of a group of audio data streams and a group of sub-picture data streams.
- 4. A disc reproduction apparatus for reproducing data from the optical disk according to claim 1, further comprising:a reading unit for reading data from said optical disc; a holding unit for holding a logical sub-data number inputted by a user and the sub-data control information table read from the management information area; a determining unit for determining said one of said plurality of sub-data streams to be reproduced based on said sub-data control information table and the logical sub-data number; selecting unit for selecting said one sub-data stream determined by said determining unit; and reproducing unit for reproducing said moving picture data stream read by said reading unit and said sub-data stream selected by said selecting unit.
- 5. The disc reproduction apparatus according to claim 4 further including a control unit for controlling said reading unit so as to reproduce said video objects in the reproduction order in said program claim information.
- 6. The disc reproduction apparatus according to claim 4, wherein the sub-data control information table includes a flag, for each of the plurality of logical sub-data numbers, which indicates whether a corresponding logical sub-data number is effective or not.
- 7. The disc reproduction apparatus of claim 4, wherein said sub-data streams are selected from a group consisting of audio data and sub-picture data.
- 8. A method of reproducing data from the optical disc according to claim 1, further comprising the steps of:a reading step for reading data from said optical disc; a holding step for holding a logical sub-data number inputted by a user and the sub-data control information table read from the management information area in the holding unit; a determining step for determining said one of said plurality of sub-data streams to be reproduced based on said sub-data control information table and the logical sub-data number in the determining unit; a selecting step for selecting said one sub-data stream determined by said determining unit; and a reproduction step for reproducing said moving picture data stream read by said reading unit and said sub-data stream selected by said selecting step.
- 9. The method of reproducing data according to claim 8 further including a control step for controlling said reading unit so as to reproduce said video objects in the reproduction order in said program chain information.
- 10. The method of reproducing data according to claim 9, wherein said sub-data is at least one selected from a group consisting of audio data and sub-picture data.
- 11. The method according to claim 8, wherein the sub-data control information table includes a flag, for each of the plurality of logical sub-data numbers, which indicates whether a corresponding logical sub-data number is effective or not.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-083686 |
Apr 1996 |
JP |
|
Parent Case Info
This is a divisional application of U.S. Ser. No. 08/832,436 filed on Apr. 3, 1997.
US Referenced Citations (9)
Foreign Referenced Citations (15)
Number |
Date |
Country |
2182260 |
Feb 1997 |
CA |
521487 |
Jan 1993 |
EP |
644692 |
Mar 1995 |
EP |
677843 |
Oct 1995 |
EP |
677961 |
Oct 1995 |
EP |
737008 |
Oct 1996 |
EP |
737980 |
Oct 1996 |
EP |
738078 |
Oct 1996 |
EP |
746162 |
Dec 1996 |
EP |
7-176175 |
Jul 1995 |
JP |
8314485 |
Nov 1996 |
JP |
8336104 |
Dec 1996 |
JP |
951501 |
Feb 1997 |
JP |
9512179 |
May 1995 |
WO |
9512276 |
May 1995 |
WO |