CN201044468Y - Image viewfinding unit - Google Patents
Image viewfinding unit Download PDFInfo
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- CN201044468Y CN201044468Y CNU2007200687207U CN200720068720U CN201044468Y CN 201044468 Y CN201044468 Y CN 201044468Y CN U2007200687207 U CNU2007200687207 U CN U2007200687207U CN 200720068720 U CN200720068720 U CN 200720068720U CN 201044468 Y CN201044468 Y CN 201044468Y
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Abstract
The utility model discloses an image grabber used to scan a document to be scanned, wherein, the document to be scanned comprises the data on a first side and the data on a second side, the image grabber comprises a first scanning module, a second scanning module, a first transmission interface and a second transmission interface. The first scanning module scans the data on the first side and outputs a corresponding first digital signal. The second scanning module scans the data on the second side and outputs a corresponding second digital signal. The first transmission interface receives the first digital signal from the first scanning module and outputs the first digital signal to a host computer. The second transmission interface receives the second digital signal from the second scanning module and outputs the second digital signal to the host computer.
Description
Technical field
The utility model relates to a kind of image capture unit, and is particularly related to a kind of image capture unit that has double-sided scanning function and can transmit fast.
Background technology
Along with weeding out the old and bring forth the new of scanner, the user also improves for the requirement of the quality of scan-image thereupon.In recent years more because the maturation of scanning technique and the rise of high-speed transfer interface make the universal degree of scanner greatly improve in the past.The major function of scanner is to carry out image capture, converts the content of Hard copy file or the map file mode by scanning to e-file, propagates, uses or preserve to make things convenient for the user.The development of scanner along with the importing and the development of autoamtic paper feeding technology and two-sided image capture technology, is is also constantly researched and developed innovation except towards increasing resolution to improve the quality of scanning in the lifting of sweep speed.
Please refer to Fig. 1, shown in it is the system block diagrams that has the scanner of double-sided scanning function traditionally.Scanner 10 adopts two cover scan modules, is configured in the both sides up and down of printing opacity flat board respectively, to carry out duplex scanning (One Pass Duplex Scanning) action for the file that is placed on the printing opacity flat board simultaneously.In the scanner 10, the first cover scan module is configured in the dull and stereotyped downside of printing opacity and installs in scanner body 100, in order to first data of scanning document, comprise first image sensor 102, first analog-digital converter (A/D converter), 104 and first internal memory 106.The second cover scan module is configured in the dull and stereotyped upside of printing opacity and is installed in automatic carriage device (Automatic Document Feeder, ADF) in 110, in order to second data of scanning document, comprise second image sensor 112, second analog-digital converter 114 and second internal memory 116.
When scanner 10 carries out image capture, automatic carriage device 110 drives between second image sensor 112 of file to be scanned by first image sensor 102 in the scanner body 100 and automatic carriage device 110, makes win image sensor 102 and second image sensor 112 can sense the two-sided data of file to be scanned simultaneously.First image sensor 102 and second image sensor 112 be first data of sensing and second analog signal that data produced respectively, but be converted into the digital signal of digitized processing respectively via first analog-digital converter 104 and second analog-digital converter 114.
Then, Application Specific Integrated Circuit (Application Specific Integrated Circuit, ASIC) 108 digital signals of handling earlier first data, and the digital signal of first data will handling by coffret 118 sends main frame 12 to.In this process, the digital signal of second data that second analog-digital converter 114 is changed is temporarily stored in second internal memory 116 earlier; By the time first data processing is intact, the digital signal of second data being temporarily stored in second internal memory 116 is handled again, and the digital signal of second data will handling by coffret 118 sends main frame 12 to then.
Yet, the development of and high-order scanner more and more higher along with the desired image resolution of image work, for example, rise to the resolution of 9600dpi by the resolution of 600dpi or 1200dpi, its size of the digital signal of second data of the digital signal of first data of first image sensor institute sensing and second image sensor institute sensing will be huge than the traditional file capacity because of the raising of resolution.When carrying out the scanning of high-resolution file, after the digital signal of the digital signal of first data and second data is handled via Application Specific Integrated Circuit, the speed that sends main frame to by coffret still is subject to the specification limits of present various coffrets, and can't be effectively and relatively promote the capacity of transmission archives, become the high-resolution bottleneck of scanning fast, so, the reduction of overall efficiency will be caused.
The utility model content
In view of this, the purpose of this utility model just provides a kind of image capture unit, and this image capture unit has double-sided scanning function, and utilizes two coffrets to quicken the digital signal transmitting speed.
According to the purpose of this utility model, a kind of image capture unit is proposed, in order to scan file to be scanned, file to be scanned comprises first data and second data, and image capture unit comprises first scan module, second scan module, first coffret and second coffret.First data of first scan module scanning, and export corresponding first digital signal.Second data of second scan module scanning, and export corresponding second digital signal.First coffret receives first digital signal from first scan module, and exports first digital signal to main frame.Second coffret receives second digital signal from second scan module, and exports second digital signal to main frame.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below.
Description of drawings
Fig. 1 shows the system block diagrams of the scanner that has double-sided scanning function traditionally.
Fig. 2 shows the system block diagrams according to the image capture unit of the utility model preferred embodiment.
Embodiment
The utility model provides a kind of have double-sided scanning function and two coffret (Double Head Double Port, DHDP) image capture unit, this image capture unit has double-sided scanning function, and utilizes two coffrets to quicken the digital signal transmitting speed.
Please refer to Fig. 2, is the system block diagrams according to the image capture unit of the utility model preferred embodiment shown in it.Image capture unit 20 is essentially scanner (scanner) or multifunctional paper feeding machine (Multi-Function Printer), and it is in order to scan file to be scanned, and this file to be scanned comprises first data and second data.Image capture unit 20 comprises first scan module 200, first coffret 209, second scan module 210 and second coffret 219.Wherein, first scan module 200 is installed in the scanner body, for example be to be installed in platform-type (Flat-bed, FB) in the scanner, second scan module is installed in automatic carriage device (Automatic Document Feeder, ADF) in, yet the utility model is not limited thereto, as long as can reach first data of scanning file to be scanned and the purpose of second data, first scan module 210 and second scan module also can be installed in different positions, for example are installed in the both sides of paper path in the paper feeding scanner.
When image capture unit 20 carried out image capture, file to be scanned was by first scan module 200 that is arranged in the scanner body and second scan module 210 that is arranged in the automatic carriage device.First data of first scan module, 200 scannings file to be scanned, and export the corresponding first digital signal D1.First coffret 209 receives the first digital signal D1 from first scan module 200, and exports the first digital signal D1 to main frame 22.Second data of second scan module, 210 scannings file to be scanned, and export the corresponding second digital signal D2.Second coffret 219 receives the second digital signal D2 from second scan module 210, and exports the second digital signal D2 to main frame 22.In addition, image capture unit 20 also can export the first digital signal D1 and the second digital signal D2 to other device, is printer for example, makes the action that this printer prints, with direct printing file to be scanned.
In the image capture unit 20, first scan module 200 comprises first image sensor 202, first analog-digital converter 204, first Application Specific Integrated Circuit 206 and internal memory 208.First image sensor 202, for example be Charged Coupled Device (Charge Coupled Device, CCD) sensing apparatus or contact image sensor (Contact ImageSensor, CIS), unit quantity to first data being made of a plurality of unit quantities is exposed, and produces the corresponding first analog signal A1.First analog-digital converter 204 is converted to the first digital signal D1 in order to the first analog signal A1 that will select.
First Application Specific Integrated Circuit 206 in order to controlling the exposure time series of first image sensor 202, and is exported first digital signal D1 to the first coffret 209.Internal memory 208 is in order to the temporary first digital signal D1.
Second scan module 210 comprises second image sensor 212, second analog-digital converter 214 and second Application Specific Integrated Circuit 216.Second image sensor 212 for example is Charged Coupled Device sensing apparatus or contact image sensor, the unit quantity of second data being made of a plurality of unit quantities is exposed, and produce the corresponding second analog signal A2.Second analog-digital converter 214 is converted to the second digital signal D2 in order to the second analog signal A2 that will select.Second Application Specific Integrated Circuit 216 in order to controlling the exposure time series of second image sensor 212, and is exported second digital signal D2 to the second coffret 219.Internal memory 208 is in order to the temporary second digital signal D2.
In the utility model, image capture unit 20 can centralized dateout also can distributed dateout, and carry out exposure time series control respectively by first Application Specific Integrated Circuit 206 and 216 pairs first image sensors 202 of second Application Specific Integrated Circuit and second image sensor 212.
So-called centralized dateout is meant that first image sensor 202 exposes with unit quantity to first data constantly, finished by acquisition until first data, and second image sensor 212 also exposes with unit quantity to second data constantly, is finished by acquisition until second data.After first data and second data are finished by acquisition, export corresponding first coffret 209 and second coffret 219 to via first Application Specific Integrated Circuit 206 and second Application Specific Integrated Circuit 216 respectively, be resent to main frame 22.
In the process that first data and second data are captured, first Application Specific Integrated Circuit 206 and second Application Specific Integrated Circuit, 216 received digital signals are temporarily stored in the internal memory 208, internal memory 208 is as the usefulness of data buffer zone (buffer), be converted to analog signal more than or equal to data and transfer to the speed of analog-digital converter as the transmission speed of first coffret 209 and second coffret 219, then can not need internal memory to be used as temporary or data buffer zone.
In addition, so-called distributed output is meant the analog signal that first image sensor 202 and second image sensor 212 are captured with the output of per unit amount, and the unit quantity of output can scan line (line) be a unit, can pixel (pixel) be unit also.First analog signal of first image sensor 202 and second image sensor, 212 difference unit of transfer amounts and second analog signal are to corresponding first analog-digital converter 204 and second analog-digital converter 214.First analog-digital converter 204 is first digital signal of unit quantity with first analog signal conversion of the unit quantity that receives, and second analog-digital converter 214 is second digital signal of unit quantity with second analog signal conversion of the unit quantity that receives.
First Application Specific Integrated Circuit 206 and second Application Specific Integrated Circuit 216 are controlled the exposure time series of first image sensor 202 and second image sensor 212 respectively, and first digital signal D1 of difference output unit amount and the second digital signal D2 of unit quantity.At last, utilize first coffret 209 and second coffret 219 that the first digital signal D1 and the second digital signal D2 are reached main frame 22 more respectively.First coffret 209 and second coffret 219 are that (Universal Serial Bus, USB) interface also can be other high-speed transfer interface to USB.
In addition, main frame 22 has at least two Ports to receive the first digital signal D1 and the second digital signal D2 respectively, and after receiving the first digital signal D1 and the second digital signal D2, integrate the first digital signal D1 and the second digital signal D2 to obtain the e-file of file to be scanned by the image processing software in the main frame 22.
The image capture unit that the utility model the foregoing description is disclosed, it has double-sided scanning function and two coffret (Double Head Double Port, DHDP), along with the user is more and more higher to the requirement of image resolution, for example rise to the resolution of 9600dpi by the resolution of 600dpi or 1200dpi, its file size of second digital signal of first digital signal of first image sensor institute sensing and second image sensor institute sensing, it is huge because the requirement of resolution improves than the traditional file size, so send main frame to by two coffrets, integrate via image processing software again, thus, can significantly improve transmission speed, reach the effect of high-resolution and high-velocity scanning.
In sum, though the utility model with the preferred embodiment disclosure as above, yet it is not in order to limit the utility model.The utility model the technical staff in the technical field in not breaking away from spirit and scope of the present utility model, can do various changes and modification.Therefore, protection range of the present utility model is as the criterion with the scope that claims were defined.
The primary clustering symbol description
10: scanner
100: the scanner body
102,202: the first image sensors
104,204: the first analog-digital converters
106: the first internal memories
108: Application Specific Integrated Circuit
110: the automatic carriage device
112,212: the second image sensors
114,214: the second analog-digital converters
116: the second internal memories
118: coffret
20: image capture unit
12,22: main frame
200: the first scan modules
206: the first Application Specific Integrated Circuit
208: internal memory
209: the first coffrets
210: the second scan modules
216: the second Application Specific Integrated Circuit
219: the second coffrets.
Claims (10)
1. image capture unit, in order to scan file to be scanned, described file to be scanned comprises first data and second data, it is characterized in that described image capture unit comprises:
First scan module in order to scanning described first data, and is exported corresponding first digital signal;
Second scan module in order to scanning described second data, and is exported corresponding second digital signal;
First coffret in order to receiving described first digital signal from described first scan module, and is exported described first digital signal to main frame; And
Second coffret in order to receiving described second digital signal from described second scan module, and is exported described second digital signal to described main frame.
2. image capture unit as claimed in claim 1 is characterized in that, described first scan module comprises:
First image sensor exposes in order to the unit quantity to described first data of being made of a plurality of unit quantities, and produces corresponding first analog signal;
First analog-digital converter is described first digital signal in order to described first analog signal conversion that will select;
Internal memory is in order to temporary described first digital signal and described second digital signal; And
First Application Specific Integrated Circuit in order to controlling the exposure time series of described first image sensor, and is exported described first digital signal to described first coffret.
3. image capture unit as claimed in claim 2 is characterized in that, described unit quantity is scan line or pixel.
4. image capture unit as claimed in claim 2 is characterized in that, described first image sensor is Charged Coupled Device sensing apparatus or contact image sensor.
5. image capture unit as claimed in claim 1 is characterized in that, described second scan module comprises:
Second image sensor exposes in order to the unit quantity to described second data of being made of a plurality of unit quantities, and produces corresponding second analog signal;
Second analog-digital converter is described second digital signal in order to described second analog signal conversion that will select; And
Second Application Specific Integrated Circuit in order to controlling the exposure time series of described second image sensor, and is exported described second digital signal to described second coffret.
6. image capture unit as claimed in claim 5 is characterized in that, described unit quantity is scan line or pixel.
7. image capture unit as claimed in claim 5 is characterized in that, described second image sensor is Charged Coupled Device sensing apparatus or contact image sensor.
8. image capture unit as claimed in claim 1 is characterized in that, described first coffret is a USB (universal serial bus), and described second coffret is described USB (universal serial bus).
9. image capture unit as claimed in claim 1 is characterized in that described first scan module is arranged in the body of image capture unit.
10. image capture unit as claimed in claim 1 is characterized in that, described second scan module is arranged in the automatic carriage device of image capture unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200687207U CN201044468Y (en) | 2007-04-06 | 2007-04-06 | Image viewfinding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200687207U CN201044468Y (en) | 2007-04-06 | 2007-04-06 | Image viewfinding unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044468Y true CN201044468Y (en) | 2008-04-02 |
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ID=39259360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200687207U Expired - Lifetime CN201044468Y (en) | 2007-04-06 | 2007-04-06 | Image viewfinding unit |
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| Country | Link |
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| CN (1) | CN201044468Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035973A (en) * | 2009-09-30 | 2011-04-27 | 兄弟工业株式会社 | Image processing apparatus |
| CN106954000A (en) * | 2016-01-06 | 2017-07-14 | 虹光精密工业（苏州）有限公司 | Scanning device and image forming system using the same |
-
2007
- 2007-04-06 CN CNU2007200687207U patent/CN201044468Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035973A (en) * | 2009-09-30 | 2011-04-27 | 兄弟工业株式会社 | Image processing apparatus |
| US8514463B2 (en) | 2009-09-30 | 2013-08-20 | Brother Kogyo Kabushiki Kaisha | Image processing apparatus |
| CN102035973B (en) * | 2009-09-30 | 2013-10-30 | 兄弟工业株式会社 | Image processing apparatus |
| CN106954000A (en) * | 2016-01-06 | 2017-07-14 | 虹光精密工业（苏州）有限公司 | Scanning device and image forming system using the same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080402 |
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| CX01 | Expiry of patent term |