Text subtitle decoder and method for decoding text subtitle streams
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United States of America Patent
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Jul 14, 2009
Grant Date -
Sep 8, 2005
app pub date -
Dec 17, 2004
filing date -
Feb 10, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and a text subtitle decoder for decoding a text subtitle stream recorded on a recording medium are disclosed. A subtitle loading buffer initially loads a text subtitle stream including a dialog style segment defining a group of region styles and a dialog presentation segment having dialog presentation information and dialog text data for a dialog having at least one region. A text subtitle processor parses the dialog presentation segment into composition information, rendering information, and the dialog text data for each region. Next, a text renderer renders the text strings into a bitmap object for each region according to the rendering information, and the rendered bitmap object is composed in a graphics plane.
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