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:
May. 30, 1995
Filed:
Sep. 15, 1993
Jae W Jeon, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A register stores the value from the integral controller of the PID controller whenever it receives a feedback signal. A main controller outputs a warm-up drift compensation value whenever the servo motor is at a standstill. An arithmetic unit calculates the sum of the speed command signal from the PID controller, the warm-up drift compensation value from the main controller and a speed feedback signal and applies the result to the servo motor. In order to compensate for the warm-up drift in the servo motor, the main controller controls the position control apparatus by resetting the warm-up drift compensation value as described above.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile