Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-12-28
1990-05-08
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356376, G01N 2186
Patent
active
049241060
ABSTRACT:
Apparatus and method for mapping the profile of an envelope flap using an array of sensors of the optical reflective type in which certain optical emitters and certain optical detectors are activated in a sequence to accurately detect and record multiple edge points on a moving flap.
REFERENCES:
patent: 4389971 (1983-06-01), Schmidt
patent: 4419384 (1983-12-01), Kane et al.
patent: 4428794 (1984-01-01), Hayskar et al.
patent: 4491490 (1985-01-01), Ehret et al.
patent: 4691912 (1987-09-01), Gillmann
patent: 4694153 (1987-09-01), Bejczy
patent: 4711579 (1987-12-01), Wilkinson
Hsia Sherrie
Nelms David C.
Parks, Jr. Charles G.
Pitchenik David E.
Pitney Bowes Inc.
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