发明名称 A method and apparatus for transforming an image into an electronic signal
摘要 <p>A reflective surface (120, 202, 302) is provided behind a document (100, 208, 308) to be scanned on an optical image scanner, copier, facsimile machine or similar device. Preferably, the reflective surface (120, 202, 302) has a reflectance less than 90% with a preferred reflectance range of 60% to 75%. this reflective surface (120, 202, 302) is substantially integral with the scanner, copier or facsimile lid (200, 300) surface and substantially reduces image bleed-through while resulting in an acceptable level of color shift and an acceptable loss of dynamic range relative to a white surface. In a second embodiment, the reflective surface (120, 202, 302) is interchangeable by the end user in order to optimize the reflectance of the reflective surface (120, 202, 302) for any given document (100, 208, 308) to be scanned, copied, or faxed. &lt;IMAGE&gt;</p>
申请公布号 EP0977420(A2) 申请公布日期 2000.02.02
申请号 EP19990305873 申请日期 1999.07.23
申请人 HEWLETT-PACKARD COMPANY 发明人 DOWE, JULIE T.
分类号 H04N1/00;(IPC1-7):H04N1/00 主分类号 H04N1/00
代理机构 代理人
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