Audiovisual playback

• US 20070006276A1
• Filed: 05/10/2004
• Published: 01/04/2007
• Est. Priority Date: 05/15/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Benjes, Immo, Houldsworth, Richard, Ashley, Alexis, Foster, Jonathan
• Application Number:
  US10/556,452
• Publication Number:
  US 20070006276A1
• Time in Patent Office: Days
• US Class Current: 725/134
• CPC Class Codes: H04N 5/85 on discs or drums

Abstract

A method of playing back audiovisual content together with associated application content, is described, for example using an extended DVD system to play back MHP broadcast content including the inter-active content. The DVD disk includes at least partially an MHP API to enhance the capabilities of a DVD player.

Claims

1. A method of outputting from a player (2) interactive audiovisual content stored on a removeable storage medium storing audiovisual content, a control application and at least one additional linked application in a predetermined interactive television platform independent standard, including the steps of:

starting a control application (28) stored on the removeable storage medium (6);

calling the audiovisual display application (20) from the control application (28);

reading audiovisual data from the removeable storage medium using the audiovisual display application (20) and providing an audiovisual display based on that content;

calling at least one linked application (29) from the control application (28) to execute the or each linked application (29);

wherein the control application (28) stored on the removeable storage medium (6) implements part of the functionality of the interactive television predetermined platform independent standard including at least part of an application programming interface (40) of the predetermined platform independent standard; and

the at least one linked application (29) calls the application programming interface (40) of the predetermined platform independent standard when executing.

2. A method according to claim 1 wherein the control application (28) implementing at least part of the functionality of the predetermined interactive television platform independent standard is written in a computer platform independent standard.

3. A method according to claim 1 wherein the control application (28) reads an application information table (27) stored on the removeable storage medium (6) and calls the at least one linked application (29) based on the information in the application information table (27).

4. A method according to claim 1 further including

registering specified events with the audiovisual display application (20);

and

calling back from the audiovisual display application (20) to the control application (28) when one or more of the specified events occur.

5. A method according to claim 1 wherein the predetermined interactive television platform independent standard is MHP.

6. A method according to claim 1, wherein the disk is a DVD disk and the audiovisual display application (20) is a DVD-video reader for reading DVD-Video content from the disk.

7. A method according to claim 1, wherein the control application (28) acts as an interpreter to interpret the code of the linked applications.

8. A removeable storage medium (6), including

audiovisual content (22);

application code (29) in a predetermined interactive television platform independent standard; and

a control application (28) for calling the application code (29) and for calling a virtual machine (20) to display the audiovisual content;

wherein the control application (28) implements part of the functionality of the interactive television predetermined platform independent standard including at least part of an appication programming interface (40) of the predetermined platform independent standard, so that the application code (29) calls the part of the application programming interface (40) to implement that least some of the functionality of the interactive television platform independent standard.

9. A removeable storage medium (6) according to claim 8 wherein the interactive television platform independent standard is MHP.

10. A removeable storage medium according to claim 8 wherein the removeable storage medium (6) is a DVD disk.