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Devices and method for detecting specifications of files

A detection device and document technology, applied in the field of automatic document specification detection device, can solve the problems of increasing cost, increasing sensor space, affecting the judgment of scanner document specification, etc., and achieving the effect of reducing cost and improving resolution

Active Publication Date: 2009-03-04
AVISION PRECISION IND (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is not only necessary to increase the space required for placement of the sensor, but also increase the cost
When the document is a non-standard document, traditional scanners cannot use these sensors to distinguish the specifications of the non-standard document
Because the sensor is usually an infrared sensor, and the infrared sensor will be interfered by the surrounding light, which seriously affects the scanner's judgment of the document specification
Ordinary technicians will add a coding circuit to the transmitter of the sensor, and a decoding circuit must be added to the receiving end to reduce the interference of ambient light, but this increases the production cost
Also, resolution cannot be improved when using traditional sensors

Method used

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  • Devices and method for detecting specifications of files
  • Devices and method for detecting specifications of files
  • Devices and method for detecting specifications of files

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0023] Please refer to Figure 2A ~ Figure 2B , Figure 2A What is shown is a side view of the detection device according to the document specification of the first embodiment of the present invention, Figure 2B Shown is a circuit block diagram of a detecting device according to the document specification of the first embodiment of the present invention. exist Figure 2A ~ Figure 2B Among them, the file standard detection device includes a platform 210 , a sensing area 230 , an array type optical sensing unit 213 and a logic processing unit 214 . The array type optical sensing unit 213 is a complementary metal-oxide semiconductor (Complementary Metal-Oxide Semiconductor, CMOS) optical sensor, and the logic processing unit 214 and the array type optical sensing unit 213 can be integrated into an Application Specific Integrated Circuit (ASIC). ). The platform 210 is used to place at least one document 215 , and the sensing area 230 is located in the platform 210 . The ...

no. 2 example

[0026] Please refer to Figure 4 , Figure 4Shown is a schematic diagram of the coordinate system of the detection device of the document specification. The document 420 is disposed on the platform 410, the first side 420a of the document 420 is aligned with the first platform side 410a, and the second side 420b of the document 420 is aligned with the second platform side 410b. The intersection 425 of the third side 420c and the fourth side 420d of the document 420 is located in the sensing area 430 . The sensing area 430 has a sensing area coordinate system 450 , and the platform 410 has a platform coordinate system 460 . The relative positions of the platform coordinate system 460 and the sensing area coordinate system 450 are known. When scanning, the array type optical sensing unit captures the image in the sensing area 430, and the logic processing unit processes the image signal into an image coordinate signal, and the image coordinate The signal is the relative coord...

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PUM

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Abstract

The invention is a file specification detector, comprising platform, array optical induction unit and logic processing unit and forming an induction zone on the platform according to the induction ability of the array optical induction unit, where the platform has a first side and a second side, and the first and second sides of the file are aligned with the first and second sides of the platform, respectively; the induction zone is in the platform, part of the file covers part of the induction zone; the array optical induction unit is used to pick up the video of the induction zone and thus output at least a video signal; the logic processing unit is used to receive video signals and determine the file specification according to the video signals.

Description

technical field [0001] The present invention relates to a detection device of file standard, and in particular to an automatic file standard detection device using an array type optical sensing unit as a sensor. Background technique [0002] Scanners, printers, facsimile machines, and multi-functional business machines are all electronic products that require the application of file standard detection devices, so it is very important to select appropriate file standard detection devices for these electronic products. [0003] Please refer to figure 1 , which shows a top view of the platform of a conventional scanner. exist figure 1 Among them, the scanner at least includes a platform 110 and several sensors separated from each other, such as sensors 105, 106 and 107. There are three types of standard documents of different specifications such as A3, A4, B5, etc. placed on the platform (Flatbed) 110. figure 1 They are respectively named format file 101, format file 102, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/20
Inventor 许明福
Owner AVISION PRECISION IND (SUZHOU) CO LTD