Method and apparatus for detecting abnormal characteristic...

Details Method and apparatus for detecting abnormal characteristic... Method and apparatus for detecting abnormal characteristic...

2006-03-10

2009-12-22

DeCady, Albert (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

Reexamination Certificate

active

07636609

ABSTRACT:
In a method for detecting abnormal characteristic values of a plurality of products sequentially manufactured in the same manufacturing line, it is determined whether or not a successive-decrease (or increase) tendency has occurred in a plurality of sequentially-obtained characteristic values of the products. Also, it is determined whether or not at least a last one of the characteristic values is located within a control region narrower than an allowable region and outside a normal region narrower than the control region. Further, when the successive-decrease or increase tendency has occurred and the last characteristic value is located within the control region outside the normal region, an alarm state is detected.

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United States Office Action dated Oct. 28, 2008 in U.S. Appl. No. 11/378,297.

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