Digital data encode system
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United States of America Patent
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Jan 16, 2001
Grant Date -
N/A
app pub date -
Feb 24, 1998
filing date -
Feb 24, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A digital data encode system for inserting water mark data into digital data signals having a series of field data by use of a water mark data inserting device, the digital data encode system has a field judging unit dividing the digital data signals by a predetermined reference, a water mark data selection output unit for selecting proper one of a plurality of different water mark data prepared correspondingly to the division according to the judgment result of the field judging unit, and a water mark data inserting device for inserting the water mark data supplied from the water mark data selection output unit into the digital data signals.
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