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:
Nov. 22, 2016
Filed:
Apr. 04, 2014
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Inventors:
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Suwon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/00 (2006.01); H02H 7/08 (2006.01); H02P 1/00 (2006.01); H02P 3/00 (2006.01); H02P 7/06 (2006.01); H02P 7/00 (2016.01);
U.S. Cl.
CPC ...
H02P 7/06 (2013.01); H02P 7/0066 (2013.01);
Abstract
An image forming apparatus includes an engine portion configured to perform image forming, a direct current (DC) motor configured to mechanically operate the engine portion, a driver including a resistor to measure current that flows to the DC motor according to the measured current and configured to provide a predetermined voltage to the DC motor, and a drive controller configured to measure a driving speed of the DC motor based on a voltage value of the resistor and to control the driver to provide a voltage that corresponds to the measured driving speed to the driver.