Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-03-02
1990-11-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
382 8, G01N 2186
Patent
active
049738526
ABSTRACT:
An empty location identification of component parts is provided which detects the presence, absence, orientation or polarity of components located on a printed circuit board or other type of component assembly. The identification is accomplished by utilizing a pattern of marks which are located in such a manner so as to be either partially or totally obscured when a component is placed in its correct location.
REFERENCES:
patent: 4005939 (1977-02-01), Stavalone
patent: 4105340 (1978-08-01), Kempf
patent: 4295198 (1981-10-01), Copeland et al.
patent: 4379647 (1983-04-01), Kempf
patent: 4549206 (1985-10-01), Suzuki et al.
patent: 4598459 (1986-07-01), Klink et al.
patent: 4635289 (1987-01-01), Doyle et al.
patent: 4795237 (1989-01-01), Kempf
patent: 4811410 (1989-03-01), Amir et al.
patent: 4833776 (1989-05-01), Wakamiya et al.
patent: 4845479 (1989-07-01), Marincic
patent: 4847449 (1989-07-01), Jordan et al.
patent: 4894790 (1990-01-01), Yotsuya et al.
Allied-Signl Inc.
Le Que Tan
Nelms David C.
Paschburg Donald B.
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