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:
Sep. 23, 2014
Filed:
Sep. 12, 2012
Ji-young Byun, Suwon-si, KR;
Ho-bin Hwang, Hwaseong-si, KR;
Ji-Young Byun, Suwon-si, KR;
Ho-bin Hwang, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An image scanning apparatus includes a scanning unit which scans paper, a paper transfer unit which transfers the paper to the scanning unit using a BLDC (Brushless DC) motor, a sensor unit which senses driving information of the BLDC motor, a scan controlling unit which controls operations of the scanning unit, and generates a control command including information regarding a driving direction of the BLDC motor, a driving signal unit which generates a driving signal for controlling the BLDC motor, and a digital controlling unit which controls operations of the driving signal unit in a digital method based on a generated control command, sensed driving information and a digital gain value according to a driving direction of the BLDC motor.