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.

Date of Patent:
May. 18, 2004

Filed:

Apr. 30, 2001
Applicant:
Inventors:

Jun Fujita, Shizuoka, JP;

Minoru Hamamura, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 1/918 ;
U.S. Cl.
CPC ...
G05B 1/918 ;
Abstract

A positional control system wherein the position of the controlled object connected to a drive is controlled to a variable target or desired position. A period is determined which starts with a detection of a reversal in the direction of the feed of a positional command Pr as well as the detection of a stoppage of a table as a controlled object and which ends with a detection of the re-start of the movement of the table . During the period, a correction amount for correcting a positional deviation E is issued.


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