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A scanner and optical scanning technology, applied in the field of scanners, can solve the problems of long flat cable, damage to image signal structure, step error, etc., and achieve the effect of increasing the scanning stroke

Inactive Publication Date: 2004-03-24
UMAX DATA SYST
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Problems solved by technology

[0007] 1. When the flat cable moves back and forth in the optical scanning module, there will be changes in straightening or compression. This change will interfere with the operation of the components in the scanner, such as step errors in the transmission, etc.
[0008] 2. The flat cable will cause the travel of the optical scanning module to be limited. Relatively speaking, the scanning range of the scanner is limited.
And for large scanners, the flat cable used is bound to be longer, resulting in a burden on material costs
[0009] 3. When the optical scanning module transmits the image signal to the control circuit board through the flat cable, the flat cable will radiate electromagnetic interference (EMI for short), which will interfere with the transmission of the image signal and destroy the Structure of the image signal

Method used

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Embodiment Construction

[0024] The present invention is based on the fact that in the scanner, the flat cable between the optical scanning module and the control circuit board will limit the scanning range of the scanner, and when the image signal is transmitted from the optical scanning module to the control circuit board through the flat cable, the flat Flat cables will radiate electromagnetic interference and other disadvantages. Those familiar with the art of scanners will know that the scanner has a housing, and the housing has a scanning window. In this housing, there are optical scanning modules, transmission mechanisms, and control devices. Wherein, the transmission mechanism includes a transmission unit (generally referred to as a stepping motor), a guide rod, and a guide rail. The control device is mainly a control circuit board. When the document or picture is on the scanning window, the control circuit board can control the stepping motor to drive the optical scanning module, so that th...

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Abstract

A scanner has a shell an optical scanning module, a drive organ and a control device, in which, the optical scanning module and the control device have a first and second radio transferring and receiving devices separately and transfer data between the optical scanning module and the control device by the two devices.

Description

technical field [0001] The present invention relates to a scanner, and in particular to data transmission between an optical scanning module (scan head) and a control circuit board (main board, Main / B for short) and power supply of the optical scanning module. A scanner that does not require a flat cable. Background technique [0002] With the great improvement of computer performance and the high development of Internet and multimedia technology, in addition to using digital camera (Digital Camera, DC) to directly capture image patterns, other image input operations related to documents or pictures need to be done through Optical Scanner is used to capture analog images of text or patterns and convert them into digital signal output, which helps users to display and recognize image files on computers or other electronic products (OCR) , editing, saving and exporting. [0003] According to the input method of document images, optical scanners can be divided into palm scann...

Claims

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Application Information

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IPC IPC(8): H04N1/00H04N1/04
Inventor 郭士文
Owner UMAX DATA SYST
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