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:
Feb. 11, 2020
Filed:
May. 16, 2017
Haechitech Corporation, Cheongju-si, KR;
Hae Jung Lee, Daegu-si, KR;
Kyoung Suck Ki, Cheongju-si, KR;
Haechitech Corporation, Cheongju-si, KR;
Abstract
An apparatus for detecting an angle of rotation includes a rotatable member situated in a first plane and rotatable to be switched between a reference state and rotated states, the rotatable member being unrotated in the reference state, magnet pieces arranged on the rotatable member along a circumferential direction of the rotatable member at intervals of an angle, the magnet pieces moving along a first locus as the rotatable member is rotated, a Hall sensor lying in a second plane spaced a distance apart from the first plane and positioned along a second locus, said second locus being a projection of the first locus into the second plane, and the Hall sensor providing an output varying as the rotatable member is rotated, and a processor configured to detect an angle of rotation of the rotatable member in response to the output from the Hall sensor.