Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1984-08-28
1987-01-13
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250568, 235462, 235385, G01N 904
Patent
active
046366342
ABSTRACT:
In an apparatus for storing articles, bins have a sensor for detecting the presence of an article in a bin and an optical code reader for reading a bar code on the article. The presence detector and the optical code reader are coupled to a circuit which provides an indication of the identity and location of a coded article. The apparatus is particularly well suited for use in the manufacture of semiconductor devices, when wafer cassette boxes are provided with a suitable bar code. Alternatively, the bins may be disposed upon a remotely guided vehicle, thereby making the apparatus useful in an automated manufacturing process.
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patent: 4010355 (1977-03-01), Roehrman et al.
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Hess, P. E., "System for Data Carrier Protection", IBM Technical Disclosure Bulletin, vol. 17, No. 5, pp. 1398-1399.
Bailey Louis G.
Harper James G.
Messinger Michael
Nelms David C.
Veeco Integrated Automation, Inc.
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