Process and apparatus for automatically identifying discount cou

Details Process and apparatus for automatically identifying discount cou Process and apparatus for automatically identifying discount cou

1979-04-17

1980-10-28

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

235 92SB, 3401463AC, 3401463AG, G06K 900

Patent

active

042310148

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.

REFERENCES:
patent: 3480785 (1969-11-01), Aufderheide
patent: 3930230 (1975-12-01), Stephens
patent: 3930231 (1975-12-01), Henrichon, Jr. et al.
patent: 3932839 (1976-01-01), Stephens
patent: 3935562 (1976-01-01), Stephens
patent: 4041456 (1977-08-01), Ott et al.
patent: 4075604 (1978-02-01), Degasperi
Stark, "An Optical-Digital Computer For Parallel Processing of Images," IEEE Trans. on Comp., vol. C-24, No. 4 Apr. 1975. pp. 340-347.
Ruppert, "Character Rec. Using Density Sums," IBM Tech. Disclosure Bulletin, vol. 18, No. 7, Dec. 1975. pp. 2190-2191.

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