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. 26, 2026
Filed:
Jan. 13, 2022
U-shin Ltd., Nagano, JP;
Makiko Masuda, Hiroshima, JP;
U-SHIN LTD., Nagano, JP;
Abstract
The present invention provides a rotation determination device capable of determining a rotational operation of a rotating body even if started from an intermediate position, comprising: an encoder section that generates two pulse signals out of phase with each other by the rotating body's rotation; an acquisitor that acquires the levels of two pulse signals; a detector that detects signal changes in two pulse signals; an edge pattern determiner that determines an edge pattern from one pulse signal with detected signal change and an input signal level of the other pulse signal, when the detector detects the signal change; a setter that sets a reference signal level with the input signal level as an initial value. When a specific edge pattern that changes according to the reference signal level matches the edge pattern determined by the edge pattern determiner, a rotation determiner determines the rotational operation of the rotating body.