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:
Aug. 06, 2002

Filed:

Mar. 21, 2000
Applicant:
Inventor:

Yuichi Tokunaga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 4/700 ;
U.S. Cl.
CPC ...
H01H 4/700 ;
Abstract

A current controller for controlling a current supplied to a contact having an external power supply, includes a contact monitoring unit for monitoring the opening and the closing of the contact, a logical computing unit for analyzing a transition of the contact based on the monitoring result from the contact monitoring unit, and a short-circuit unit for short-circuiting the input route based on a direction from the logical computing unit. The logical computing unit turns on the short-circuit unit when the logical computing unit detects chattering at the opening of the contact, and turns off the short-circuit unit after the chattering ends at the closing of the contact.


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