公开(公告)号：US10655985B2

公开(公告)日：2020-05-19

申请号：US16204629

申请日：2018-11-29

申请人： Haechitech Corporation

发明人： Dong Yoon Kim ,  Seong Min Choe ,  Eun Joong Kim ,  Joon Yul Yun

IPC分类号： G01B7/14 ,  G01B7/30 ,  G01R33/06 ,  H01L43/06 ,  G01D5/14 ,  G01D11/24 ,  G01D5/12 ,  G01R33/07 ,  G01R33/09

摘要： A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.

公开(公告)号：US09921274B2

公开(公告)日：2018-03-20

申请号：US14534547

申请日：2014-11-06

申请人： Haechitech Corporation

发明人： Eun Joong Kim ,  Seong Min Choe

IPC分类号： G01D5/14 ,  G01R33/00 ,  G01R33/07 ,  G01R33/10

CPC分类号： G01R33/0094 ,  G01D5/145 ,  G01R33/072 ,  G01R33/10

摘要： Provided are a sensing apparatus using a plurality of Hall sensors and an apparatus using the sensing apparatus. The sensing apparatus is configured to measure an intensity of a magnetic field with respect to a magnetic element by using a plurality of Hall sensors and to identify a body that includes the magnetic element.