发明授权
- 专利标题： Magnetic ink character reading apparatus
- 专利标题（中）： 磁性油墨字符读取装置
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申请号： US12797253申请日： 2010-06-09
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公开(公告)号： US08276818B2公开(公告)日： 2012-10-02
- 发明人: Yoshiaki Kinoshita
- 申请人： Yoshiaki Kinoshita
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Nutter McClennen & Fish LLP
- 代理商 John J. Penny, Jr.; Rory P. Pheiffer
- 优先权： JP2004-250562 20040830
- 主分类号： G06K7/08
- IPC分类号： G06K7/08
摘要：
A magnetic ink character reading method includes conveying paper by a stepping motor, detecting magnetic ink characters on the paper and generating magnetic detection signals by a magnetic detection unit, generating magnetic noise data by accumulating magnetic detection signals before the paper passes the magnetic detection unit, and removing the magnetic noise by subtracting the magnetic noise data from the magnetic detection signals. The generated magnetic noise can be a function of a control period of the transportation mechanism and a control period of a photodetector.
公开/授权文献
- US20100270375A1 MAGNETIC INK CHARACTER READING APPARATUS 公开/授权日：2010-10-28
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