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:
May. 03, 2016
Filed:
Sep. 30, 2010
Fujio Kurokawa, Nagasaki, JP;
Fujio Kurokawa, Nagasaki, JP;
NAGASAKI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Nagasaki-Shi, Nagasaki, JP;
Abstract
The frequency decision device determines frequency of the measured rectangular signal by simple and easy means. The frequency decision device inputs the measured rectangular signal that frequency (or period) changes dynamically. It generates a rectangular reference signal of predetermined on width τ synchronizing to the edge based on a positive going edge of this measured rectangle signal. And it watches the order of measured rectangle signal and falling edges of the rectangular reference signal. When this sequential order reversed, it detects that length of the ON time of ON time of the measured rectangle signal and the measured rectangular signal reversed.