Data storage medium in which multiple bitstreams are recorded, apparatus and method for recording the multiple bitstreams, and apparatus and method for reproducing the multple bitstreams
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United States of America Patent
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Apr 21, 2009
Grant Date -
Aug 8, 2002
app pub date -
Oct 18, 2001
filing date -
Feb 5, 2001
priority date (Note) -
In Force
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Abstract
A data storage medium in which multiple bitstreams are recorded, an apparatus and method for recording the multiple bitstreams, and an apparatus and method for reproducing the multiple bitstreams are provided. The reproducing apparatus includes: a reading unit for reading main data including audio data and/or video data, and reading sub data recorded in a separate bitstream from the main data, which is later reproduced in synchronization with the main data; and a multiplexer for multiplexing the main data and sub data read by the reading unit. Therefore, multiple bitstreams can be read and reproduced at the same time.
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