公开(公告)号：US20060250665A1

公开(公告)日：2006-11-09

申请号：US11414450

申请日：2006-05-01

Applicant: Ku Chen

Inventor： Ku Chen

IPC: H04N1/04

CPC classification number: H04N1/12 ,  H04N1/00018 ,  H04N1/00045 ,  H04N1/191 ,  H04N1/193 ,  H04N2201/044

Abstract: A sheet-fed scanner capable of scanning multiple scan lines for image signal calibration includes a housing, a sheet-feeding mechanism, a first scanning module, a first actuator and a first calibration sheet. The sheet-feeding mechanism disposed in the housing feeds a document across a scan region. The first scanning module rotatably mounted in the housing scans a front side of the document fed across the scan region. The first calibration sheet is fixed in the housing and disposed in the scan region. The first actuator drives the first scanning module to rotate such that the first scanning module senses a plurality of scan lines on the first calibration sheet to obtain a first calibration standard for calibrating a first image signal of the front side of the document. Thus, it is possible to avert any flaws in image quality caused by the contaminated calibration sheet.

Abstract translation: 能够扫描多条扫描线用于图像信号校准的单张纸扫描仪包括壳体，送纸机构，第一扫描模块，第一致动器和第一校准片。 设置在壳体中的片材馈送机构跨越扫描区域馈送文件。 可旋转地安装在壳体中的第一扫描模块扫描沿着扫描区域馈送的文件的前侧。 第一校准片被固定在壳体中并且设置在扫描区域中。 第一致动器驱动第一扫描模块旋转，使得第一扫描模块感测第一校准片上的多条扫描线，以获得用于校准文件正面的第一图像信号的第一校准标准。 因此，可以避免由污染的校准片引起的图像质量的任何缺陷。