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. 26, 1997
Filed:
Jun. 21, 1995
Applicant:
Inventor:
Masato Kudo, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
342 359 ; 342426 ; 343757 ;
Abstract
An apparatus is disclosed which computes the full-step number of full-step drive pulses at each control period, generates microstep drive pulses on the basis of the full step number so as to make a drive angle at each control period correspond to a full-step unit, and drives a motor drive current on the basis of the microstep drive pulses.