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:
Apr. 23, 1996
Filed:
Mar. 13, 1995
Yoshio Watanabe, Hiratsuka, JP;
Yasuo Abuyama, Ebina, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In an image forming device including an image reading device, dot signals for one scanning line are detected by a CCD sensor. After their A/D conversion and shading-correction, the detected signals are supplied to a comparison processor. In the comparison processor, the dot signals corresponding to the leading and tailing edges of the original are detected from the dot signals for the one scanning line. The rest of the dot signals are judged to be those other than from the original in the selector, and converted into white dot signals. Consequently, the region other than the original is formed in white for each line. Thus, regardless of the original sheet size, or even if the sheet is obliquely placed, the region other than the original can be detected, and the region can be erased by adding a white background.