Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1986-08-13
1988-04-05
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
235456, 235464, 235471, 235494, 250569, 382 48, G06K 710, G06K 932
Patent
active
047361093
ABSTRACT:
A coded document is provided for use in a document reading system having a plurality of markable areas defined thereon and a first and second coded pattern disposed in predetermined relation to the markable areas. Each of the coded patterns has an identical predefined signature when viewed from any direction. A coded document reader includes a video camera that captures the image carried on the coded document. Pixel data is stored in a memory corresponding to the document area scanned by the video camera. The stored data is analyzed to identify detected signatures corresponding to the coded pattern signatures. Based on the location of the identified detected signatures and stored data defining the positions of the markable locations relative to the coded patterns, the position within the stored data of each of the markable locations on the card is determined.
REFERENCES:
patent: 3058093 (1962-10-01), Vernon et al.
patent: 3603728 (1971-09-01), Arimura
patent: 3693154 (1972-09-01), Kubo et al.
patent: 3801775 (1974-04-01), Acker
patent: 4091394 (1978-05-01), Kashioka et al.
patent: 4115805 (1978-09-01), Morton
patent: 4115806 (1978-09-01), Morton
patent: 4130243 (1978-12-01), Stevens
patent: 4298859 (1981-11-01), Feilchenfeld
patent: 4300123 (1981-11-01), McMillin et al.
patent: 4357596 (1982-11-01), Feilchenfeld
patent: 4388610 (1983-06-01), Tsunekawa
patent: 4495491 (1985-01-01), Postl
patent: 4504969 (1985-03-01), Suzuki et al.
patent: 4513442 (1985-04-01), Scherl
patent: 4516266 (1985-05-01), Christopher et al.
patent: 4545070 (1985-10-01), Miyagawa et al.
patent: 4566125 (1986-01-01), Clunn
patent: 4566126 (1986-01-01), Miyagawa et al.
Bally Manufacturing Company
Westin Edward P.
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