Method and apparatus for displaying sub-pictures
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United States of America Patent
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Oct 29, 2002
Grant Date -
N/A
app pub date -
Nov 5, 1998
filing date -
Nov 5, 1997
priority date (Note) -
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Abstract
A picture display apparatus displays a sub-picture together with a main picture. The apparatus includes a detector for detecting a state of the main picture from an encoded main picture signal. A signal processor decodes the encoded main picture signal, signal-processes an input sub-picture signal and the decoded main picture signal, in order to display the main picture together with sub-picture, and output the processed picture signal. A controller controls the operation of the signal processor based upon the main picture state detected in the detector so that the sub-picture is discerned from the main picture. Thus, the sub-picture can be always distinctively discerned irrespective of the picture state of the main picture by varying the display state of the sub-picture according to the image complexity and the movement degree of the main picture.
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