Reproduction device, reproduction method, reproduction program, and recording medium

• US 20060140079A1
• Filed: 08/19/2004
• Published: 06/29/2006
• Est. Priority Date: 11/28/2003
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kato, Motoki, Hamada, Toshiya
• Granted Patent: US 7,821,881 B2
• Time in Patent Office: Days
• US Class Current: 369/47.100
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• 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 5/76 Television signal recording
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

With a reproduction-only disc having a large recording capacity, an interactive function having a higher degree of freedom than the related art can be easily accomplished. A virtual player model corresponding to a function of a player is created and described in Java. BDBasicPlayer 210 detects a user input and the status change of the player and generates an event. An object 211 that implements a listener interface registers an event listener corresponding to an event that the object 211 is caused to receive to BDBasicPlayer 210 before the event takes place. When the event becomes unnecessary, it is unregistered. BDBasicPlayer 210 transmits the event to the object 211 in which the event listener has been registered. The object 211 executes a method corresponding to the received event. The relationships between events and methods can be flexibly set. Thus, a complicated interactive function can be easily accomplished.

Claims

1. A reproducing apparatus that reproduces content data hierarchically recorded on a disc-shaped recording medium, comprising:

a player object that generates an event corresponding to a predetermined change; and

a program object that is formed above said player object and that is capable of describing a process corresponding to the event that takes place,

wherein said player object controls a reproduction process for content data hierarchically recorded on the disc-shaped recording medium with a process corresponding to the event described in said program object.

2. The reproducing apparatus as set forth in claim 1,

wherein said program object is reproduced from the recording medium.

3. The reproducing apparatus as set forth in claim 1,

wherein when said program object registers a process corresponding to the event that takes place to said player object, said player object executes the process corresponding to the event that takes place.

4. The reproducing apparatus as set forth in claim 3,

wherein while the content data are being reproduced, the process is capable of being registered.

5. The reproducing apparatus as set forth in claim 3,

wherein while the content data is being reproduced, the process that has been registered is capable of being deregistered.

6. The reproducing apparatus as set forth in claim 1,

wherein the predetermined change is a change that takes place while the content data is being reproduced.

7. The reproducing apparatus as set forth in claim 6,

wherein the predetermined change is detection of a mark that represents a time that is set in the content data.

8. The reproducing apparatus as set forth in claim 1, further comprising:

user input means for receiving a user input and informing said player object of the user input,

wherein the predetermined change is based on an input to said user input means.

9. The reproducing apparatus as set forth in claim 8,

wherein a virtual key is allocated to a physical key of said user input means by said program object, the predetermined change being an input to the virtual key.

10. The reproducing apparatus as set forth in claim 1,

wherein the predetermined change is a status change of a player.

11. The reproducing apparatus as set forth in claim 1,

wherein one or a plurality of events take place corresponding to the change based on the event.

12. The reproducing apparatus as set forth in claim 1,

wherein the reproduction process includes a reproduction control that reproduces the content data from the disc-shaped recording medium and a process for the content data reproduced from the disc-shaped recording medium.

13. A reproducing method of reproducing content data hierarchically recorded on a disc-shaped recording medium, comprising the step of:

causing a player object that generates an event corresponding to a predetermined change to control a reproduction process for content data hierarchically recorded on the disc-shaped recording medium with a process corresponding to the event described in a program object that is formed above the player object and that is capable of describing a process corresponding to the event that takes place.

14. A reproducing program that causes a computer device to execute a reproducing method of reproducing content data hierarchically recorded on a disc-shaped recording medium, comprising the step of:

causing a player object that generates an event corresponding to a predetermined change to control a reproduction process for content data hierarchically recorded on the disc-shaped recording medium with a process corresponding to the event described in a program object that is formed above the player object and that is capable of describing a process corresponding to the event that takes place.

15. A computer readable recording medium on which a reproducing program has been recorded, the reproducing program causing a computer device to execute a reproducing method of reproducing content data hierarchically recorded on a disc-shaped recording medium, comprising the step of:

causing a player object that generates an event corresponding to a predetermined change to control a reproduction process for content data hierarchically recorded on the disc-shaped recording medium with a process corresponding to the event described in a program object that is formed above the player object and that is capable of describing a process corresponding to the event that takes place.

16. A disc-shaped recording medium on which content data have been hierarchically recorded,

at least content data and a program object that is capable of describing a process corresponding to an event that takes place being recorded on the recording medium,

a reproduction process for the content data being controlled with a process corresponding to the event described in the program object by a player object that generates an event corresponding to a predetermined change and formed below the program object.

17. The recording medium as set forth in claim 16,

wherein when the program object registers a process corresponding to the event that takes place to the player object, the player object executes the process corresponding to the event that takes place.

18. The recording medium as set forth in claim 17,

wherein while the content data are being reproduced, the program object is capable of registering the process.

19. The recording medium as set forth in claim 17,

wherein while the content data is being reproduced, the program object is capable of deregistering the process that has been registered.

20. The recording medium as set forth in claim 16,

wherein the predetermined change is a change that takes place while the content data is being reproduced.

21. The recording medium as set forth in claim 20,

wherein the predetermined change is based on a mark that represents a time that is set in the content data.

22. The recording medium as set forth in claim 16,

wherein the predetermined change is based on an input to user input means.

23. The recording medium as set forth in claim 22,

wherein the program object assigns to a physical key of the user input means a virtual key that causes a predetermined change to take place corresponding to an input.

24. The recording medium as set forth in claim 16,

wherein the predetermined change is a status change of a player.

25. The recording medium as set forth in claim 16,

wherein one or a plurality of events take place corresponding to the change based on the event.

26. The recording medium as set forth in claim 16,

wherein the reproduction process includes a reproduction control that reproduces the content data and a process for the content data that have been reproduced.