Invention Grant
US07940431B2 Image scanner and peak detecting processing method of image scanner
有权
图像扫描仪图像扫描仪和峰值检测处理方法
- Patent Title: Image scanner and peak detecting processing method of image scanner
- Patent Title (中): 图像扫描仪图像扫描仪和峰值检测处理方法
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Application No.: US12043717Application Date: 2008-03-06
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Publication No.: US07940431B2Publication Date: 2011-05-10
- Inventor: Yusuke Hashizume
- Applicant: Yusuke Hashizume
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Tec Kabushiki Kaisha
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Tec Kabushiki Kaisha
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Foley & Lardner LLP
- Main IPC: H04N1/40
- IPC: H04N1/40
Abstract:
A sheet image scanner of the present invention has plural image sensors to output electric signals by detecting optical image data that are obtained by applying a light from a light source to documents, amplifiers to amplify outputs from the plural image sensors, and a peak detection processing unit to detect a peak value of sensitivity of at least one of the plural image sensors and set a gain value for each of amplifiers for the plural image sensors using the detected peak value.
Public/Granted literature
- US20080151321A1 IMAGE SCANNER AND PEAK DETECTING PROCESSING METHOD OF IMAGE SCANNER Public/Granted day:2008-06-26
Information query
