Patent 7986866 was granted and assigned to Panasonic on July, 2011 by the United States Patent and Trademark Office.
A playback device plays back a digital stream and executes an application. A Java™ module is a platform unit, executes the application, and performs playback control based on a result of the execution. When performing this playback, the playback device has a plurality of real parameters specific to the playback device, for the playback control. The Java™ module provides a function using a real parameter to the application, in response to a method call from the application.