Pattern scanner providing data to a computer which carries out l

Details Pattern scanner providing data to a computer which carries out l Pattern scanner providing data to a computer which carries out l

1982-11-09

1986-03-11

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250578, 356377, 364560, G01B 1100, H04N 110

Patent

active

045756287

ABSTRACT:
A pattern scanner comprises a plurality of light-sensitive elements guided in X and Y co-ordinate directions to scan a screen on which one or more pattern pieces are laid. The scanner detects outer and inner boundaries of the pieces, and analyses the inner boundaries to identify information such as grain direction, piece identity and drill holes.

REFERENCES:
patent: 3617629 (1971-11-01), McCarthy
patent: 3717848 (1973-02-01), Irving et al.
patent: 3886371 (1975-05-01), Lloyd
patent: 3976837 (1976-08-01), Alien et al.
patent: 4147930 (1979-04-01), Browne et al.
patent: 4232342 (1980-11-01), Skala
patent: 4240118 (1980-12-01), Wellendorf
patent: 4245259 (1981-01-01), Pick
patent: 4417149 (1983-11-01), Takeuchi et al.

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