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. 10, 2006
Filed:
Oct. 16, 2002
Kyung-pyo Kang, Gyeonggi-do, KR;
Hyoung-il Kim, Gyeonggi-do, KR;
Kyung-pyo Kang, Gyeonggi-do, KR;
Hyoung-il Kim, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A method of driving a step motor is provided which uses different operations of driving the step motor according to the driving speed of the driver, including a micro step operation for a low speed section of the driver and a full step operation for a high speed section of the driver. The method reduces low speed vibration and high speed noise caused by switching pulse noise. Moreover, driving the step motor by the full step operation in the high speed section reduces the frequency of use of a central processing unit (CPU), thereby stabilizing the driving device. In addition, only a small number of reduction gears is required, reducing the size of the driving device.