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:
Dec. 16, 2003
Filed:
Nov. 27, 1998
Applicant:
Inventor:
Hyuk-Jae Lee, Yongin-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/014 ;
U.S. Cl.
CPC ...
H01J 4/014 ;
Abstract
A method of calculating a precise scanning reference value for a shading correction by dividing a scanning area under a reciprocating scanner into a practical scanning area and a shading correction scanning area. This method includes the steps of: entering a shading correction mode; moving the scan head to the shading correction scanning area; reading a plural number of scanning values in moving within the shading correction scanning area; and calculating the scanning reference value by using said plural number of scanning values.