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:
Feb. 03, 1987
Filed:
Dec. 03, 1983
Kenji Sawada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A stepper motor control system for rotating a stepper motor by a desired amount of movement, including a first ROM (ROM.sub.3) for storing acceleration control data, a second ROM (ROM.sub.4) for storing deceleration control data and a change point control circuit for controlling a change point period between acceleration and deceleration. The change point control circuit assures that the acceleration is smoothly joined to the deceleration through the change point period so that the rotor of the stepper motor stops instantly and accurately at the target position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile