Process and apparatus for automatically identifying discount coupons and the like by means of electronic comparison
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 28, 1980
Issued Date -
N/A
app pub date -
Apr 17, 1979
filing date -
Apr 17, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process and apparatus for identifying and separating discount coupons having particular zones of color depths, shades, tonalities or the like in which both sides of the coupons are read by scanning and zones of like tones are summed to mathematically form an algorithmic 'word' for comparison with a 'sample word' for the identification of valid coupons.
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Cited Art Landscape
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