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:
Jan. 22, 2013
Filed:
Nov. 17, 2010
Shigeharu Katou, Nagano, JP;
Kazuhiro Makiuchi, Nagano, JP;
Shoji Ito, Nagano, JP;
Tooru Miyajima, Nagano, JP;
Tomohito Yamazaki, Nagano, JP;
Toshiaki Ayuzawa, Nagano, JP;
Masato Matsuda, Nagano, JP;
Shigeharu Katou, Nagano, JP;
Kazuhiro Makiuchi, Nagano, JP;
Shoji Ito, Nagano, JP;
Tooru Miyajima, Nagano, JP;
Tomohito Yamazaki, Nagano, JP;
Toshiaki Ayuzawa, Nagano, JP;
Masato Matsuda, Nagano, JP;
Sayno Denki Co., Ltd., Tokyo, JP;
Abstract
A magnetic absolute encoder with enhanced resolution is provided. A first cycle determining sectionutilizes data stored in a fourth angle data storing sectionto determine in which cycle of m cycles of the fourth angle data, fifth angle data, which has been newly computed in response to rotation of a rotary shaft, occurs. A second cycle determining sectiondetermines in which cycle of n cycles of first angle data that occur in first determined cycle, the newly computed fifth angle data occurs. A third cycle determining sectiondetermines in which cycle of N1 cycles of the first angle data, the current first angle data occurs, based on the first determined cycle and second determined cycle. An absolute position determining sectiondetermines the absolute position based on third determined cycle and the digital value of the current first angle data.