Flaw annunciator with a controllable display means for an automa

Details Flaw annunciator with a controllable display means for an automa Flaw annunciator with a controllable display means for an automa

1990-03-02

1991-04-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340703, 356430, G01N 2188, G09G 128

Patent

active

050067222

ABSTRACT:
An annunciator system and method for indicating when the number of detected flaws in a moving web is greater than a preselected threshold. The method and system includes a controllable display comprising a matrix of areas each corresponding to one type of the plurality of flaws and each capable of displaying any one of a first, second and third color. Signals corresponding to different detected flaws are received for controlling the display to initially display all of the areas in the first color, to individually change the color of an area to the second color in response to the detection of a first preselected threshold value of flaws of a type corresponding to the area and to individually change the color of an area from the second color to the third color in response to the detection of a second preselected threshold value of corresponding type flaws, which is higher than the first preselected threshold value.

REFERENCES:
patent: 3887762 (1975-06-01), Uno et al.
patent: 4044227 (1977-08-01), Holm et al.
patent: 4439730 (1984-03-01), Kauffman
patent: 4748335 (1988-05-01), Lindow et al.
patent: 4776692 (1988-10-01), Kalawsky
patent: 4824250 (1989-04-01), Newman
patent: 4910593 (1990-03-01), Weil
patent: 4933567 (1990-06-01), Silva et al.

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