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:
Apr. 08, 2014
Filed:
Jun. 30, 2011
Mitsuyuki Taniguchi, Minamitsuru-gun, JP;
Hiroya Terashima, Minamitsuru-gun, JP;
Hirofumi Kikuchi, Minamitsuru-gun, JP;
Tokuhisa Matsukane, Minamitsuru-gun, JP;
Mitsuyuki Taniguchi, Minamitsuru-gun, JP;
Hiroya Terashima, Minamitsuru-gun, JP;
Hirofumi Kikuchi, Minamitsuru-gun, JP;
Tokuhisa Matsukane, Minamitsuru-gun, JP;
Fanuc Corporation, Minamitsuru-gun, Yamanashi, JP;
Abstract
An encoder having a function for detecting noise which may affect an internal signal of the encoder, without using a noise detecting circuit within the encoder, whereby the cost and size thereof may be reduced. The encoder has a detecting part adapted to detect the movement of an electric motor or a driven object; a signal processing circuit adapted to process a detection signal from the detecting part and obtain positional data of the motor or the object; and a transmitting part adapted to transmit the positional data from the signal processing circuit at regular time intervals and a fluctuation component calculated on the basis of the positional data, to external equipment. The signal processing circuit has a fluctuation component detecting circuit adapted to detect a fluctuation comment included in the calculated positional data, and the detected fluctuation component is transmitted to the external controller as an amount of noise.