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. 03, 2002
Filed:
May. 09, 2000
Kazuhiro Ikurumi, Katano, JP;
Masanori Yasutake, Hitakata, JP;
Osamu Nakao, Osaka, JP;
Masaharu Tsujimura, Toyonaka, JP;
Toshihiko Tsujikawa, Kofu, JP;
Kenji Okamoto, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A motion of a printed circuit board ( ) is detected by an encoder ( ) arranged aside a belt conveyer ( ), and the encoder generates a detection signal (S ) which activates a timing signal generator unit ( ) for generating an image pickup start timing signal which is fed to a time measuring unit ( ) for measuring the image storing time which corresponds to the time interval of the image pickup start signal (S ). According to the image storing time, the image signal (S ) generated by the line CCD camera ( ) is normalized by the normalizing calculation means ( ), and thereafter, the mounting condition of the printed circuit board is judged by the image recognizing section (B) with the use of the image data (D) to thereby realize a simple and convenient mechanism at a low cost and at a high precision.