Apparatus for detecting number of packs included in bundle

Details Apparatus for detecting number of packs included in bundle Apparatus for detecting number of packs included in bundle

1989-12-20

1991-05-21

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502222, 209534, G01N 904

Patent

active

050177737

ABSTRACT:
A laser beam emitted from a semiconductor laser is radiated and scanned on a bundle of paper materials which is being conveyed, and the laser beam reflected by the bundle is received by a plurality of photocells to be converted to electrical signals. A signal synthesizer synthesizes the electrical signals output from the photocells. A binary circuit binarizes the synthesized signal to generate a boundary signal corresponding to a boundary between packs included in the bundle. A CPU detects the number of packs included in the bundle on the basis of the number of boundary signals.

REFERENCES:
patent: 4188544 (1980-02-01), Chasson
patent: 4281243 (1981-07-01), Hudler
patent: 4483124 (1984-11-01), Ohba et al.
patent: 4845917 (1989-07-01), Omura et al.
patent: 4929843 (1990-05-01), Chmielewski, Jr. et al.

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