The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 11, 2003

Filed:

Mar. 30, 2001
Applicant:
Inventors:

Koji Fujii, Osaka, JP;

Jing Bo Wang, Hyogo, JP;

Mamoru Watanabe, Hyogo, JP;

Yasuhiro Goto, Hyogo, JP;

Makoto Ryudo, Hyogo, JP;

Kinichi Matsuyama, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/124 ;
U.S. Cl.
CPC ...
B23K 1/124 ;
Abstract

A joining equipment in which a neural network is employed for controlling a joining process. A dynamic analog model is used for neuron elements configuring the network. The equipment includes a detector, a controller, and a neural network. The detector detects a joining state of a joining portion when work pieces are joined with each other. The controller controls the output of the joining equipment. In response to output signals from the detector, the neural network transmits signals to the controller. Such a structure allows the joining equipment to flexibly respond to complicated changes in joining states. Besides, using similarity with a thermal conduction equation enables to minimize the number of input items fed into the neural network. Furthermore, using an approximate solution to the thermal conduction equation realizes to accelerate the time for numerical calculation without loss of accuracy.


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