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:
Jul. 06, 2010
Filed:
Jan. 25, 2008
Atsuhiro Noda, Ashiya, JP;
Akira Kosaka, Yao, JP;
Atsuhiro Noda, Ashiya, JP;
Akira Kosaka, Yao, JP;
Konica Minolta Opto, Inc., Hachioji-shi, JP;
Abstract
Driving techniques are provided for achieving a sufficiently low-speed drive and smooth change in the drive speed. Voltage is applied to an electromechanical element by repeating an output cycle in which one voltage value out of a first voltage value is output during a first period, a second voltage value lower than the first voltage value is output during a second period, a third voltage value lower than the second voltage value is output during a third period, and finally the second voltage value is output during a fourth period. Further, a mechanism for changing the lengths of the respective periods is provided to allow for a sufficiently low-speed drive and smooth change in the drive speed.