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.
Patent No.:
Date of Patent:
Apr. 30, 2002
Filed:
Nov. 23, 1999
Ghislain Durif, Meylan, FR;
Mustapha Chelloug, Echirolles, FR;
Square D Company, Palatine, IL (US);
Abstract
The control device comprises two power supply terminals and a local control terminal connected by a local control means to one of the power supply terminals. A control circuit receives on a first input a first full-wave rectified voltage representative of the supply voltage, and on a second input a second half-wave rectified voltage representative of the voltage applied to the local control terminal. To eliminate spurious orders, it compares a quantity G representative of at least one non-null sample of the second voltage to a percentage of a quantity G representative of associated samples of the first voltage, sampling of the two voltages being almost simultaneous. If G ≧0.8G the device considers that a control order has been received and if G ≦0.7G that no order has been received.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile