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Scanning speed control device and method

A scanning speed and control device technology, applied in the direction of instruments, calculations, character and pattern recognition, etc., can solve the problem that the scanner cannot perform forward and backward scanning, etc.

Inactive Publication Date: 2007-08-01
TRANSPACIFIC SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automatic document feeder is indeed very convenient in the application of general machines, but when it is applied to the scanner, due to the design conditions of the automatic document feeder on the mechanism, the scanner will have the limitation that it cannot perform forward and backward scanning

Method used

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  • Scanning speed control device and method
  • Scanning speed control device and method
  • Scanning speed control device and method

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Embodiment Construction

[0025] Please refer to FIG. 1 , which is a device for controlling scanning speed according to a preferred embodiment of the present invention, which includes: a light sensing component 100 of an input device 10, an analog / digital converter 102 and an image processing unit 104; a judging device 12 The image buffer 120 , the up-down counter 122 and the comparator 124 ; the motor controller 140 and the motor 142 of the driving device 14 ; and the input / output interface 16 .

[0026] The coupling connection relationship of the device for controlling the scanning speed is that the analog / digital converter 102 is coupled to the light sensing component 100, the image processing unit 104 is coupled to the analog / digital converter 102 and the image buffer 120, and the image buffer 120 is coupled to the input / The output interface 16 , the up-down counter 122 is coupled to the input end of the image buffer 120 and the output end of the image buffer 120 , the comparator 124 is coupled to ...

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Abstract

The present invention relates to scanning speed control device and method. The control device has judging unit and driving unit, the judging unit includes image buffer, up, and down counters, and comparator. The judging unit is used in accepting input image data, the up and down counters count the amount of input image data access by the image buffer, and the comparator decides either to increase or to decrease the scanning speed and outputs the result to the driver. The device and the method makes it possible to control the scanning speed autoamtically.

Description

Technical field: [0001] The invention relates to a scanning control device and a control method, in particular to a scanning speed control device and a control method. Background technique: [0002] Due to the development of science and technology, many convenient machines have been invented in today's industrial and commercial society, one of which is the Auto Document Feeder (ADF for short), which can be applied to different machines, such as printers, copiers or scanners, etc. On top of that, these machines can automatically feed the required paper into the machine without manual labor. When there is paper placed in the automatic paper feeder, the processing unit in the machine (such as a processor or an application-specific integrated circuit, etc.) can know that the paper has been stored in the automatic paper feeder through the sensor, and it is equipped with When the machine of the automatic document feeder needs to input paper, the processing unit will control the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/24
Inventor 王国任
Owner TRANSPACIFIC SYST