Image recorded product, image recording system, image reproducing system, and recording medium for use to superimpose-record/reproduce additional information
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Mar 13, 1997
filing date -
Mar 14, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image recording system superimposes, on an original image, an additional image which is same as at least any one of visible characters, symbols and numerals recorded on a recorded product and records the superimposed image on the recorded product as an image for certification. The additional image superimpose-recorded on the recorded product cannot visually be recognized and it is permitted to be visible when a universal optical filter is used.
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Cited Art Landscape
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