Method of encoding a stream of motion picture data
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United States of America Patent
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May 7, 1996
Grant Date -
N/A
app pub date -
Mar 30, 1994
filing date -
Mar 30, 1994
priority date (Note) -
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Abstract
Methods of encoding and decoding data in variable-length data structures, such as that found in motion picture data. Data in an MPEG standard format may be encoded in a format which is not easily subject to unauthorized copying, but which may be easily displayed in a real-time video and audio display. The encoded data may be less subject to errors in data distribution and data storage than known methods of data transformation. Encoded data may be multiplexed with non-encoded data, or may be multiplexed with data encoded by another technique, in such manner that recovery of the original motion picture video and audio may still be achieved in real time. The degree of encoding may take on differing values, so that, for example, all motion picture data is encoded for one video clip, while only some of data is encoded for a second video clip.
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