Television – Basic receiver with additional function – For display of additional information
Patent
1996-08-01
1999-12-07
Lee, Richard
Television
Basic receiver with additional function
For display of additional information
348468, H04N 5445
Patent
active
059992255
ABSTRACT:
A method and apparatus for encoding signals so as to form a multiplexed signal and for decoding the same. The apparatus may include an encoding unit and a decoding unit. The encoding unit may include a device for encoding a dynamic image signal so as to form a video bit stream, a device for encoding superimposed data so as to form bit map data, a device for encoding the bit map data and coordinates of a plurality of regions so as to form a bit stream of each respective region, a device for encoding the bit stream of each of the regions and coordinates of a page layer so as to form a bit stream of a page layer. The page layer specifies information indicative of start and end positions of a plurality of regions such that each of the regions are within a display area, and a device for multiplexing the bit stream of the page layer and the video bit stream. The decoding unit may include a device for separating the multiplexed bit stream into the video bit stream and the superimposed data bit stream, a device for decoding the video bit stream so as to form the dynamic image signal, a device receiving the superimposed data bit stream for obtaining coordinates of a page layer, coordinates of a plurality of regions and bit map data therefrom and for decoding the bit map data, a device for selecting one of the decoded bit map data and the dynamic image signal, and a control device.
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Fujinami Yasushi
Iwamura Ryuichi
Yagasaki Yoichi
Frommer William S.
Lee Richard
Sony Corporation
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