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. 04, 2012
Filed:
Nov. 25, 2009
Masahiro Sakamoto, Tokyo, JP;
Masahiro Sakamoto, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An original scanning apparatus is described that scans an original placed on an original placing plane line by line by moving a scanning unit including a plurality of light-receiving elements that are arranged in a prescribed direction in a direction perpendicular to the prescribed direction. The original scanning apparatus includes: a pattern unit that is provided in a vicinity of a side of the rectangular original placing plane extending along a moving direction of the scanning unit; a control unit configured to calculate drive information in the moving direction per line-scanning cycle of the scanning unit based on a result of scanning the pattern unit; and a driving circuit configured to feed back the calculated drive information so as to control the scanning unit to thereby drive the scanning unit in the moving direction.