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. 02, 2002
Filed:
Dec. 21, 2000
Applicant:
Inventor:
Te-Chih Chang, Hsin-Chu, TW;
Assignee:
Mustek Systems Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 8/20 ; H04N 1/04 ;
U.S. Cl.
CPC ...
H02P 8/20 ; H04N 1/04 ;
Abstract
A scanner has a housing, a scanning module for scanning a document, a driving module for driving the scanning module, and a control circuit for controlling the scanner. The driving module comprises a stepping motor for driving the scanning module forward and backward so that the scanning module is able to scan the entire area of the document. The control circuit controls the stepping motor to generate different torque so that the scanning module can scan the document at different speeds.