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:
Sep. 19, 2017
Filed:
Mar. 21, 2014
Hitachi High-tech Science Corporation, Minato-ku, Tokyo, JP;
Masatsugu Shigeno, Tokyo, JP;
Shigeru Wakiyama, Tokyo, JP;
Masafumi Watanabe, Tokyo, JP;
Kazutoshi Watanabe, Tokyo, JP;
Hitachi High-Tech Science Corporation, Minato-ku, Tokyo, JP;
Abstract
A device for calculating a position of an actuator, the actuator including a movement mechanism configured to move in one direction in proportion to a control signal generated for each minimum movement amount ΔM and a movement amount detection sensor configured to detect a movement amount of the movement mechanism in a minimum resolution ΔS, where A=ΔS/ΔM≧2, and the device includes a position calculation unit configured to calculating a position SA of the movement mechanism at a target position from the control signal at a time point T1, at which the sensor signal becomes (S0+m×ΔS) or (S0−m×ΔS), where m is a natural number of 1 or more, the control signal at the target position of the movement mechanism is denoted by M0, and the sensor signal is denoted by S0.