On-line web inspection system

Details On-line web inspection system On-line web inspection system

1977-11-21

1980-12-02

Krass, Errol A.

Boots, shoes, and leggings

250562, 356430, 364507, G01N 2184, G06F 1520

Patent

active

042375398

ABSTRACT:
An automatic on-line computer-aided inspection system for a running web utilizing a transverse web scanning means, detection means incorporating feature extraction and processing circuitry for generating unique output signals corresponding to said web scanning characteristic of web features of inspection interest, means converting the output signals to digital data words input sequentially to a digital computer, said computer applying one or more algorithms to said words, thereby calibrating the values of said features of said words, comparing said calibrated feature values to at least one set of product-qualifying values held in memory, and means responsive to the computer classifying the web as acceptable or non-acceptable as regards areas of preselected marketable size in the web.

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