Document reader

A technology for document reading and reading surface, applied in the direction of image communication, electrical components, user/computer interaction input/output, etc., which can solve the problem of small document reading area

Active Publication Date: 2010-06-30
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in general, since the aberration of the lens increases as the lens moves away from the center, when the white reference plate is arranged around the document reading window, there is a possibility that the actual document reading area becomes larger than the document reading area. read window problem

Method used

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Examples

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Embodiment Construction

[0024] Hereinafter, a document reading device according to the present invention will be described based on an embodiment with reference to the drawings.

[0025] A. The structure of the original reading device:

[0026] The external configuration of the mouse scanner as the document reading device according to the present embodiment will be described. figure 1 It is an explanatory diagram showing how to use the mouse scanner according to this embodiment. figure 2 It is a plan view of the mouse scanner according to this embodiment. image 3 It is a bottom view showing the document reading surface of the mouse scanner in this embodiment. Figure 4 is a front view of the mouse scanner according to this embodiment. Figure 5 It is a side view of the mouse scanner according to this embodiment.

[0027] The mouse scanner 10 has a function as a document reading device and a function as a pointing device. Such as figure 1 As shown, the mouse scanner 10 is connected to a person...

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PUM

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Abstract

The object of the invention is to perform white reference process under the precondition of not reducing the reading region of the document. A mouse type scanner includes first-fourth position detection sensors, a document reading opening, a cover and a pad on the bottom face (namely the document reading surface). The document reading opening is a rectangular opening of the mouse type scanner for reading the document, and is covered by a light-transmittable cover. A white reference region is formed in the central part (centre point) of the cover, and the white reference region provides a white reference used in the white reference setting process performed in the scanner.

Description

technical field [0001] The present invention relates to a document reading device for reading characters and images on a document. Background technique [0002] Stationary scanners are widely used as document reading devices (also referred to as image reading devices). In a stationary scanner, scanning of a document is realized by moving either a document reading unit disposed inside the device or the document. On the other hand, there is also known a handheld scanner that reads a document by moving (scanning) a document reading device main body. In a scanner, generally, in order to perform appropriate reading, it is necessary to perform setting processing of a white reference and a black reference (for example, refer to Patent Document 1). In a stationary scanner in which the document reading unit moves, a white reference plate used as a reference in the white reference setting process is arranged outside the frame of the document table. In contrast, in a hand-held scann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/04G06F3/03
CPCH04N1/107H04N1/0057
Inventor 李文权
Owner SEIKO EPSON CORP
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