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:
Oct. 15, 2019
Filed:
Jun. 08, 2018
Fanuc Corporation, Minamitsuru-gun, Yamanashi, JP;
Youhei Kondou, Yamanashi, JP;
Keisuke Imai, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
An encoder according to an embodiment of this disclosure includes a voltage generation circuit connected to a power supply through a diode and having a variable resistor, the voltage generation circuit outputting a voltage corresponding to a current flowing through the diode and a resistance value of the variable resistor, as a threshold value; a comparator for comparing an analog signal inputted from a detector for detecting rotation of a motor with the threshold value inputted from the voltage generation circuit, and outputting a comparison result as a comparator output; an A/D converter for converting the analog signal into a digital signal; a threshold value determination circuit for calculating a new threshold value using the digital signal; and a resistance value change circuit for changing a resistance value of the variable resistor, such that the calculated new threshold value is inputted from the voltage generation circuit to the comparator.