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:
Jan. 19, 1982
Filed:
Jul. 31, 1979
Applicant:
Inventors:
James S Sweeney, Laguna Beach, CA (US);
James S Sweeney, Jr, Laguna Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G05B / ; G05B / ;
U.S. Cl.
CPC ...
364167 ; 318594 ; 318599 ; 364182 ;
Abstract
A digital motor control positioning system, and method, are disclosed in which lead screw position is measured by an encoder, and the error between that position and the destination is measured, either continuously or repetitively, to provide digital, distance-representing control pulses to the motor. In the final, settling-in portion of motor movement, it is successively started and stopped to provide incremental distance movements, which preferably are reduced in size as the destination is approached.