专利检索 ap:("Takashi Honjo" OR "Tomio Nagai" OR "Toshiyasu Omata" OR "Hideharu Ito") AND inv:"Tomio Nagai" 第 1 页

1.

发明授权
Image reading apparatus for optically reading image information recorded on sheetlike recording medium 有权

公开(公告)号：US06989915B2

公开(公告)日：2006-01-24

申请号：US09951379

申请日：2001-09-14

申请人： Takashi Honjo , Tomio Nagai , Toshiyasu Omata , Hideharu Ito

发明人： Takashi Honjo , Tomio Nagai , Toshiyasu Omata , Hideharu Ito

IPC分类号： H04N1/40 , H04N1/04

CPC分类号： H04N1/00909 , H04N1/12 , H04N1/193 , H04N2201/044

摘要： An image reading apparatus comprises a correcting mechanism for correcting an output signal from a reading unit in accordance with a reference level. The correcting mechanism includes a reference element for setting the reference level and a drive mechanism for rocking the reference element between a first position in which the reference element is advanced to a reading position and a second position in which the reference element is retreated from the reading position. The drive mechanism includes a rotating member that is continuously rotated in one direction. As the rotating member rotates, the reference element rocks between the first and second positions, thereby executing correction of the output signal before image information recorded on a recording medium is read.