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:
Aug. 14, 1984
Filed:
Jul. 20, 1982
Torao Yajima, Shiojiri, JP;
Epson Corporation, Nagano, JP;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JP;
Abstract
A drive control system for a step motor. The system includes a detector for detecting when the step motor is central between step positions of the step motor and for producing a timing signal representative of the central position of the step motor. Motor drive coils selectively driven by a drive control circuit actuate the step motor. The drive control circuit receives the timing signal and in response thereto selectively actuates the motor drive coils to allow the step motor to stop at its next step position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile