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:
Mar. 25, 2014
Filed:
Feb. 15, 2011
Hideaki Yamada, Shimosuwa-machi, JP;
Michihiro Nagaishi, Okaya, JP;
Hideaki Yamada, Shimosuwa-machi, JP;
Michihiro Nagaishi, Okaya, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A motion state detection method which uses a pair of electrodes, facing each other to fix mutual positional relationship, and a movable spherical conductor disposed between the pair of electrodes, putting the pair of electrodes into either a conduction state or a non-conduction state, includes: defining a plurality of level values determined by the proportion of a duration of the conduction state in a unit time period and calculating a level value in the unit time period among the plurality of level values as a first level value; adding a second predetermined value to the first level value to calculate a second level value; and calculating the sum of squares of a plurality of first level values in a plurality of consecutive unit time periods as a first detection value and calculating the sum of squares of a plurality of second level values as a second detection value.