CN1484431A - Scanner - Google Patents
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- Publication number
- CN1484431A CN1484431A CNA021427739A CN02142773A CN1484431A CN 1484431 A CN1484431 A CN 1484431A CN A021427739 A CNA021427739 A CN A021427739A CN 02142773 A CN02142773 A CN 02142773A CN 1484431 A CN1484431 A CN 1484431A
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- China
- Prior art keywords
- scanner
- scan module
- conducting end
- receiving system
- shell
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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
The invention relates to a kind of scanner, and particularly relevant for a kind of optic scan module (scan head) and control circuit board (main board, abbreviation Main/B) transfer of data between and the power supply of optic scan module are supplied with, and all need not use the scanner of flat flat cable (flat cable).
Background technology
Along with significantly improving of computing power, and the high development of world-wide web and multimedia technology, except utilizing digital camera (Digital Camera, DC) directly capture outside the picture pattern, the image input operation of other relevant document or picture, all need see through the analog image that optical scanner (Optical Scanner) captures literal or pattern, and to the digital signal output of converting, help the user on computer or other electronic product, carry out the actions such as demonstration, identification (OCR), editor, storage and output of image file.
Input mode according to document image is distinguished, and optical scanner can be divided into handly scanner, paper feeding scanner (Sheet Feed Scanner), drum type scanner (DrumScanner) and falt bed scanner (Flatbed Scanner) or the like.It should be noted that, because platform-type scanner has more stable image scanning quality, and has a function of scanning reflection original text or transmission original text (egative film, transparency etc.), more can be equipped with an autofile document feeder (Automatic Document Feeder, ADF), in order to scan whole folded measure-alike file, make falt bed scanner become one of present modal optical scanner.
Falt bed scanner has a transparent glass usually, in order to place file to be scanned, comprise egative film, transparency and reflection original text etc., and utilize transmission mechanism, come the optic scan module of linear guide falt bed scanner inside, the image fetching unit that utilizes optic scan module simultaneously is the analog picture signal on scanning document surface one by one, and correspondingly produces data image signal output.
Just so far, when the optic scan module in the scanner scanned with the acquisition image to file or picture, the picture signal that captures transferred to control circuit board through flat flat cable usually, and control circuit board deals with output this picture signal again.Please refer to Fig. 1, what Fig. 1 illustrated is the structural representation of known scanner.When 100 pairs of files of scanner or scanning of picture do and acquisition image, one group of path (power supply and ground connection) that control circuit board 140 sees through on the flat flat cable 115 provides optic scan module 110 power supplys, power drives optic scan module 110, optic scan module sees through transmission mechanism (not illustrating) again, and assisting by guide rod 120 and guide rail 130, linear guide its in position A to position B intercropping moving back and forth, so that file or picture are made scanning and acquisition image.And when optic scan module 110 scanning documents or picture, the picture signal that is captured transfers to connectivity port 140a on the control circuit board 140 for utilizing connectivity port 110a on optic scan module 110 bases to see through flat flat cable 115.At last, the output after this control circuit board 140 deals with this picture signal is user's being seen image on personal computer.
In general, this kind as the scanner that signal between optic scan module and control circuit board transmits, has following shortcoming with flat flat cable:
1, flat flat cable is when optic scan module moves around, and has variation stretching or compression, and this variation will interfere with the running of assembly in the scanner, as the stepping error in the transmission etc.
2, flat flat cable will cause the stroke limiting of optic scan module, comparatively speaking, promptly be that the sweep limits of scanner is restricted.And at large scale scanner, employed flat flat cable certainly will be longer, causes the burden on the Material Cost.
3, when optic scan module transfers to control circuit board with picture signal by flat flat cable, flat flat cable will give off electromagnetic interference (electromagnetic interference, be called for short EMI), this electromagnetic interference will be disturbed the transmission of this picture signal, and destroy the structure of this picture signal.
Summary of the invention
In view of this, the present invention proposes a kind of scanner, and the transfer of data between its optic scan module and control circuit board, and the supply of the power supply of optic scan module all need not used flat flat cable, and strengthen its sweep limits, and not be subjected to the influence of electromagnetic interference.
The present invention proposes a kind of scanner, includes shell, optic scan module, transmission mechanism and control device.Wherein, shell has scanning window.Optic scan module is positioned at shell, and is suitable for scanning along the one scan direction, and it has the first wireless transmission receiving system, first conducting end and second conducting end.Transmission mechanism is positioned at shell, and transmission mechanism then also includes conductive guide, conduction guide rod and gear unit.And wherein, its bearing of trend of conductive guide is parallel with the scanning direction, conductive guide and the touching of first conducting end, and conductive guide couples supply voltage.Its bearing of trend of conduction guide rod is parallel with the scanning direction, conduction guide rod and the touching of second conducting end, and the conduction guide rod couples ground.Gear unit scans along the scanning direction in order to drive optic scan module.And control device is positioned at shell, and has the second wireless transmission receiving system, and wherein, by the data between the first wireless transmission receiving system and the second wireless transmission receiving system transmission optics scan module and control device.
The present invention proposes a kind of scanner in addition, includes shell, optic scan module, transmission mechanism and control device.Wherein, shell has scanning window.Optic scan module is positioned at shell, and is suitable for scanning along the one scan direction, and it has the first wireless transmission receiving system, first conducting end and second conducting end, and wherein, first conducting end couples supply voltage, and second conducting end couples ground.And transmission mechanism is positioned at shell, scans along the scanning direction in order to the transmission optic scan module.Control device is positioned at shell, and has the second wireless transmission receiving system, and wherein, by the data between the first wireless transmission receiving system and the second wireless transmission receiving system transmission optics scan module and control device.
The present invention proposes a kind of scanner in addition again, comprising: shell, optic scan module, transmission mechanism and control device.Wherein, shell has the one scan window.Optic scan module is positioned at shell, and it is suitable for scanning along the one scan direction, and has first conducting end and second conducting end.Transmission mechanism is positioned at shell, and transmission mechanism more comprises conductive guide, conduction guide rod and gear unit.And wherein, its bearing of trend of conductive guide is parallel with the scanning direction.Conductive guide and the touching of first conducting end, conductive guide couples a supply voltage.Its bearing of trend of conduction guide rod is parallel with the scanning direction.Conduction guide rod and the touching of second conducting end, conductive guide couples ground.Gear unit scans along the scanning direction in order to drive optic scan module.And control device is positioned at shell, and control device is positioned at shell, and control gear unit drive optic scan module scans along the scanning direction.
It should be noted that above-mentioned wireless transmission receiving system for example is that an infrared ray transmits receiving system.First conducting end and second conducting end for example are reeds.Supply voltage for example is a positive voltage.Gear unit for example has stepper motor, driving belt gear train.
In sum, the invention provides a kind of scanner, transmit receiving system, carry out in this scanner the transfer of data between optic scan module and control circuit board with one group of infrared ray.The present invention can make the swash width of scanner increase, and is not subjected to the influence of electromagnetic interference.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, elaborate.
Description of drawings
What Fig. 1 illustrated is the structural representation of known scanner;
What Fig. 2 illustrated is the schematic top plan view of the scanner in the preferred embodiment according to the present invention.Label declaration
100,200: scanner 110,210: optic scan module
110a, 140a: connectivity port 115: flat flat cable
120,240: guide rod 130,230: guide rail
140,220: control circuit board 210a, 220a: infrared ray transmits receiving system
210b, 210c: electric installation 250: gear unit
Embodiment
The present invention is based in the scanner, flat flat cable between optic scan module and control circuit board will cause the sweep limits of scanner limited, and when picture signal is seen through flat flat cable and transferred to control circuit board by optic scan module, flat flat cable will give off shortcoming such as electromagnetic interference and propose.Be familiar with this skill person of scanner as can be known, scanner has a shell, and this shell has scanning window.And in this shell, include optic scan module, transmission mechanism and control device etc.Wherein, transmission mechanism has comprised gear unit (referring generally to stepper motor), guide rod and guide rail etc.Control device then is mainly a control circuit board.When file or picture were positioned on the scanning window, control circuit board can the control step motor and then is driven optic scan module, so that optic scan module auxiliary by guide rod, guide rail scanned file or picture on the one scan direction.
In view of the above, please refer to Fig. 2, what Fig. 2 illustrated is the schematic top plan view of the scanner in the preferred embodiment according to the present invention.This scanner 200 is mainly by shell (not illustrating), optic scan module 210, transmission mechanism and control device.Wherein, transmission mechanism includes gear unit 250 (stepper motor, driving belt and the gear train of thin portion do not illustrate), conductive guide 230 and conduction guide rod 240.Control device then has control circuit board 220.
Based on the present invention for using the scanner of wireless telecommunications as the transfer of data of 220 of optic scan module 210 and control circuit boards.Therefore, dispose wireless transmission receiving system 210a on the optic scan module 210.220 are also disposed wireless transmission receiving system 220a on the control circuit board.In this preferred embodiment, wireless transmission receiving system 210a and 220a for example are that an infrared ray transmits receiving system.
And scanner 200 replaces the data passes of flat flat cable (not illustrating) as 220 of optic scan module 210 in the scanner 200 and control circuit boards with wireless transmission receiving system 210a and 220a, promptly is one of important technology feature of the present invention.
But, because the optic scan module in the known scanner, its power supply is supplied with to the one group of path (power supply and ground connection) that is seen through on the flat flat cable by the control circuit board in the known scanner and is provided.Therefore, refer again to Fig. 2, this just must otherwise provide optic scan module 210 power supplys with the scanner 200 that wireless transmission receiving system 210a and 220a replace known flat flat cable.
In this preferred embodiment, the present invention then is that design optic scan module 210 is provided with first conducting end 210b (first terminal) and second conducting end (second terminal) 210c.The position of the first conducting end 210b and the second conducting end 210c for example is disposed at the two ends of optic scan module 210 respectively, corresponding respectively to conductive guide 230 and conduction guide rod 240, and then make win conducting end 210b and the second conducting end 210c can touch conductive guide 230 and conduction guide rod 240 respectively smoothly.At last, coupling the power supply of this scanner on conductive guide 230, for example is a positive supply, couples ground (ground) on the guide rod 240 and will conduct electricity.
Therefore, during the power supply power supply that coupled when conductive guide 230, optic scan module 210 can see through the first conducting end 210b and conductive guide 230, the electric power that this power supply provided is imported optic scan module 210, see through the second conducting end 210c and conduction guide rod 230 again the electric current of optic scan module 210 is directed into ground, and in power supply, conductive guide 230, optic scan module 210 and 240 formation of conduction guide rod loop.
That is to say, when optic scan module 210 moves around in scanner 200 by gear unit 250, guide rod 230 and guide rail 240, so that file or picture are done scanning, optic scan module 210 just can by and the loop of 240 of power supply, guide rail 230 and guide rods obtain electric power and supply with.So can solve the problem that this scanner 200 that replaces flat flat cable with wireless transmission receiving system 210a and 220a must otherwise provide optic scan module 210 power supplys.And be familiar with this operator also as can be known, its power supply supply mode is not as limit.
For optic scan module 210 is moved around in scanner 200 so that file or picture are done scanning, the first conducting end 210b and the second conducting end 210c can be respectively and are suitably touched conductive guide 230 and conduct electricity guide rod 240, the present invention is designed to the rubber-like structure with the first conducting end 210b and the second conducting end 210c, for example is to have the elastic structure that reed etc. can prop up conductive guide 230 and conduction guide rod 240 smoothly.
Comprehensively above-mentioned, the present invention proposes a kind of scanner, transmits receiving system by one group of infrared ray and replaces flat flat cable, carries out in the scanner transfer of data between optic scan module and control circuit board.More be provided with two conducting end, to touch conduction guide rod and the conductive guide that couples power supply and ground separately respectively, so that the optic scan module power supply to be provided by optic scan module.Therefore, the present invention can make scanner significantly promote its sweep limits, and can not be subjected to the influence of electromagnetic interference when scanning.
Though the present invention with preferred embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention defines and is as the criterion when looking claims.
Claims (20)
1, a kind of scanner is characterized in that: comprising:
One shell has the one scan window;
One optic scan module is positioned at this shell, and this optic scan module is suitable for scanning along the one scan direction, and this optic scan module has one first wireless transmission receiving system, one first conducting end and one second conducting end;
One transmission mechanism is positioned at this shell, and this transmission mechanism comprises:
One conductive guide, its bearing of trend is parallel with this scanning direction, this conductive guide and the touching of this first conducting end, this conductive guide couples a supply voltage;
One conduction guide rod, its bearing of trend is parallel with this scanning direction, this conduction guide rod and the touching of this second conducting end, this conductive guide couples ground;
One gear unit prolongs this scanning direction and scans in order to drive this optic scan module;
One control device is positioned at this shell, and this control device has one second wireless transmission receiving system, wherein, transmits data between this optic scan module and this control device by this first wireless transmission receiving system and this second wireless transmission receiving system.
2, scanner as claimed in claim 1 is characterized in that: this first wireless transmission receiving system and this second wireless transmission receiving system are that an infrared ray transmits receiving system.
3, scanner as claimed in claim 1 is characterized in that: this first conducting end comprises a reed.
4, scanner as claimed in claim 1 is characterized in that: this second conducting end comprises a reed.
5, scanner as claimed in claim 1 is characterized in that: this supply voltage is a positive voltage.
6, scanner as claimed in claim 1 is characterized in that: this gear unit comprises a stepper motor, a driving belt and a gear train.
7, scanner as claimed in claim 1 is characterized in that: this control device comprises a control circuit board.
8, a kind of scanner is characterized in that: comprising:
One shell has the one scan window;
One optic scan module, be positioned at this shell, this optic scan module is suitable for scanning along the one scan direction, this optic scan module has one first wireless transmission receiving system, one first conducting end and one second conducting end, wherein, this first conducting end couples a supply voltage, and this second conducting end couples ground;
One transmission mechanism is positioned at this shell, and this transmission device prolongs this scanning direction in order to this optic scan module of transmission and scans;
One control device is positioned at this shell, and this control device has one second wireless transmission receiving system, wherein, transmits data between this optic scan module and this control device by this first wireless transmission receiving system and this second wireless transmission receiving system.
9, scanner as claimed in claim 8 is characterized in that: this first wireless transmission receiving system and this second wireless transmission receiving system are that an infrared ray transmits receiving system.
10, scanner as claimed in claim 8 is characterized in that: this first conducting end comprises a reed.
11, scanner as claimed in claim 8 is characterized in that: this second conducting end comprises a reed.
12, scanner as claimed in claim 8 is characterized in that: this supply voltage is a positive voltage.
13, scanner as claimed in claim 8 is characterized in that: this gear unit comprises a stepper motor, a driving belt and a gear train.
14, scanner as claimed in claim 8 is characterized in that: this control device comprises a control circuit board.
15, a kind of scanner is characterized in that: comprising:
One shell has the one scan window;
One optic scan module is positioned at this shell, and this optic scan module is suitable for scanning along the one scan direction, and this optic scan module has one first conducting end and one second conducting end;
One transmission mechanism is positioned at this shell, and this transmission mechanism comprises:
One conductive guide, its bearing of trend is parallel with this scanning direction, this conductive guide and the touching of this first conducting end, this conductive guide couples a supply voltage;
One conduction guide rod, its bearing of trend is parallel with this scanning direction, this conduction guide rod and the touching of this second conducting end, this conductive guide couples ground;
One gear unit prolongs this scanning direction and scans in order to drive this optic scan module;
One control device is positioned at this shell, and this control device is controlled this gear unit, prolongs this scanning direction and scans to drive this optic scan module.
16, scanner as claimed in claim 15 is characterized in that: this first conducting end comprises a reed.
17, scanner as claimed in claim 15 is characterized in that: this second conducting end comprises a reed.
18, scanner as claimed in claim 15 is characterized in that: this supply voltage is a positive voltage.
19, scanner as claimed in claim 1 is characterized in that: this gear unit comprises a stepper motor, a driving belt and a gear train.
20, scanner as claimed in claim 1 is characterized in that: this control device comprises a control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021427739A CN1484431A (en) | 2002-09-19 | 2002-09-19 | Scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021427739A CN1484431A (en) | 2002-09-19 | 2002-09-19 | Scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1484431A true CN1484431A (en) | 2004-03-24 |
Family
ID=34148110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021427739A Withdrawn CN1484431A (en) | 2002-09-19 | 2002-09-19 | Scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1484431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306786C (en) * | 2004-07-09 | 2007-03-21 | 宇东电浆科技股份有限公司 | Image scanner |
| CN100387040C (en) * | 2004-12-06 | 2008-05-07 | 致伸科技股份有限公司 | System and method for determining regression of photosensitive component of scanner |
-
2002
- 2002-09-19 CN CNA021427739A patent/CN1484431A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306786C (en) * | 2004-07-09 | 2007-03-21 | 宇东电浆科技股份有限公司 | Image scanner |
| CN100387040C (en) * | 2004-12-06 | 2008-05-07 | 致伸科技股份有限公司 | System and method for determining regression of photosensitive component of scanner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |