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:
Mar. 16, 1982
Filed:
Jun. 30, 1980
Dietrich J Bahr, Herrenberg, DE;
Karl-Heinz Burckardt, Herrenberg, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Step motor control in which a coded emitter disk is formed with a plurality of sensible secondary marks between each pair of primary motor step marks for use as different optional delay times for the generation of a motor advance pulse after a step mark is sensed. A circuit is disclosed to select predetermined ones of the secondary marks which will generate motor advance pulses in a closed loop system. This arrangement of secondary marks permits the elimination of circuits of fixed delays for feedback signals which are inappropriate when the motor load or temperature varies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile