CN1320493C - Platform-type scanner, automatic paper feeding device and double sided scanner combined by the two - Google Patents
Platform-type scanner, automatic paper feeding device and double sided scanner combined by the two Download PDFInfo
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- CN1320493C CN1320493C CNB031414478A CN03141447A CN1320493C CN 1320493 C CN1320493 C CN 1320493C CN B031414478 A CNB031414478 A CN B031414478A CN 03141447 A CN03141447 A CN 03141447A CN 1320493 C CN1320493 C CN 1320493C
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Abstract
The present invention relates to a double-face scanner which comprises an automatic paper advance mechanism and a platform type scanner, wherein the automatic paper advance mechanism and the platform type scanner respectively comprise a scanning module which is used for scanning the images of a front side and a back side of a file. The automatic paper advance mechanism scans the image of the back side of the file and converts the obtained analog signals into the digital signals. The platform type scanner receives the digital signals coming from the automatic paper advance mechanism and simultaneously scans the front side of the file, and then, the analog signals obtained from scanning are converted into the digital signals to be output.
Description
Technical field
The present invention relates to a kind of falt bed scanner, automatic paper conveying apparatus and in conjunction with both Double face scanner, relate in particular to a kind of falt bed scanner that reduces cost that has, the automatic paper conveying apparatus that cooperates with this falt bed scanner, and in conjunction with both Double face scanner.
Background technology
Traditionally, the double-side file scanning motion typically uses two scan modules front face of document and reverse side is scanned simultaneously fast.These two scan modules are respectively to be installed in falt bed scanner and to have on the automatic paper conveying apparatus of scan function.Must deliver to from the original scan-data of two scan modules in the treatment circuit of falt bed scanner and handle, for example analog signal conversion be become digital signal, with the signal amplification etc.
Usually, the designed platform-type scanner of manufacturer has the apolegamy function.That is to say that the user can obtain pure platform-type scan function with this falt bed scanner of independent purchase.When the user need be scanned many single face files, he can come to use with this falt bed scanner collocation to buy more an automatic paper conveying apparatus again.Perhaps, when the user need be scanned many double-side files, he can come to use with this falt bed scanner collocation to buy more an automatic paper conveying apparatus with scan function again.
Yet, known can with the falt bed scanner of automatic paper conveying apparatus collocation with scan function, have all processing and control circuit and internal memory etc. usually, be used for handling sweep signal from automatic paper conveying apparatus and falt bed scanner.Therefore, automatic paper conveying apparatus just will be sent to falt bed scanner and handle from the simulating signal of its scan module.
In addition, the scanning motion of automatic paper conveying apparatus is also controlled by the processing and the control circuit of falt bed scanner.Therefore, the inner hardware device that needs to reserve for the automatic paper conveying apparatus use of falt bed scanner makes that its price is high, and makes that the user can't be according to its interim demand with economic way buying on scale falt bed scanner and automatic paper conveying apparatus.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of falt bed scanner of cheapness, it can mix into Double face scanner with the automatic paper conveying apparatus with scan function.
For reaching above-mentioned purpose, the invention provides a kind of falt bed scanner, it can be used with the automatic paper conveying apparatus with scan function, scans a front face of document image and back side image simultaneously.This falt bed scanner comprises: bottom image read module is used for reading this front image and obtains to simulate the front signal; Lower motor is used for moving this bottom image read module; Lower circuit is used for controlling this bottom image read module, and should simulate positive signal Processing and become digital front signal; And the bottom internal memory, be connected with this lower circuit, wherein this lower circuit comprises a digital signal acceptance division, is used for receiving the digital back side signal corresponding to this back side image from this automatic paper conveying apparatus.
Secondly, the present invention also provides a kind of automatic paper conveying apparatus, and it can be used with falt bed scanner, scans a back face of document image and front image simultaneously.This automatic paper conveying apparatus comprises: top image read module is used for reading this back side image and obtains to simulate back side signal; Paper feed mechanism is used for presenting this document; And upper circuit, be used for receiving this simulation back side signal, and should simulate back side signal Processing and become digital back side signal to be used for outputing to this falt bed scanner.
In addition, the present invention also provides a kind of Double face scanner in conjunction with above-mentioned automatic paper conveying apparatus and falt bed scanner.Make the cost of falt bed scanner be able to effective reduction.
Description of drawings
Fig. 1 is the block scheme according to a kind of Double face scanner of first embodiment of the invention;
Fig. 2 is the block scheme according to a kind of Double face scanner of second embodiment of the invention;
Fig. 3 is the block scheme according to a kind of Double face scanner of third embodiment of the invention.
Embodiment
Fig. 1 is the block scheme according to a kind of Double face scanner of first embodiment of the invention.As shown in Figure 1, Double face scanner 9 of the present invention can be used for simultaneously the front image and the back side image of scanning document, and its scanning result can be sent to such as be the image processor 50 of one of computing machine or printing equipment etc. usually.Double face scanner 9 is made of automatic paper conveying apparatus 10 and falt bed scanner 20.
Automatic paper conveying apparatus 10 comprises: top image read module 11, be used for reading this back side image and obtain to simulate back side signal SA2 be used for output; Paper feed mechanism 12 is used for presenting this document; Upper circuit 13 is used for controlling this top image read module 11, and should simulate back side signal SA2 and be processed into digital back side signal SD2 and be used for outputing to this falt bed scanner 20; And top internal memory 14, be connected to this upper circuit 13, be used for storing data and the conduct buffering.
Upper circuit 13 comprises: clock generator 43 is used for producing top clock signal SC2 and carries out image and read to control this top image read module 11; And analog-digital converter 41 and amplifier 42, be used for respectively this simulation back side signal SA2 is changed and zoom into this numeral back side signal SD2.This numeral back side signal SD2 also can carry out other predetermined processing by upper circuit 13.
This lower circuit 23 comprises digital signal acceptance division 31, is used for receiving the digital back side signal SD2 corresponding to this back side image from this automatic paper conveying apparatus 10.
This lower circuit 23 more comprises: clock generator 32 is used for producing bottom clock signal SC1 and controls this bottom image read module 21; And analog-digital converter 33 and amplifier 34, be used for respectively this simulation front signal SA1 is changed and zoom into this numeral front signal SD1.This numeral front signal SD1 also can carry out other predetermined processing by lower circuit 23.And this lower circuit 23 also can be carried out other predetermined processing to digital back side signal SD2, and digital front signal SD1 and digital back side signal SD2 are exported successively.
Above-mentioned image read module 11 and 21 can be CCD (Charged Coupled Device) or CIS (contact image sensor) image sensing module, and normally the CCD image sensing module is preferable.And this lower circuit 23 is designed to a kind of specific use integrated circuit (ASIC) usually.
In the present embodiment, automatic paper conveying apparatus 10 each has a whole set of signal Processing and control circuit with falt bed scanner 20,20 of falt bed scanners need to receive the digital back side signal SD2 that handles back output from automatic paper conveying apparatus 10, and digital back side signal SD2 output is got final product.Therefore, by above-mentioned design, can effectively reduce the cost of falt bed scanner 20.Upper circuit 13 is controlled the duplex scanning action after preferably carrying out synchronously with lower circuit 23 again.
Except the signal processing circuit with the whole series is configured in the automatic paper conveying apparatus 10, also can be optionally the signal processing circuit of a part be configured on the automatic paper conveying apparatus 10, below will be illustrated by second and third embodiment.
Fig. 2 is the block scheme according to a kind of Double face scanner of second embodiment of the invention.Present embodiment and Fig. 1 are similar, and difference is that automatic paper conveying apparatus 10 dispenses top internal memory 14, amplifier 42 and clock generator 43.Therefore, the bottom clock signal SC1 that clock generator 32 is produced not only controls bottom image read module 21 and reads action, also is sent to automatic paper conveying apparatus 10 and is used for controlling top image read module 11 and reads action.Secondly, 13 use analog-digital converters 41 of upper circuit will be simulated back side signal SA2 and be converted digital back side signal SD2 to.Numeral back side signal SD2 is sent to and carries out other signal Processing in the lower circuit 23 and become digital back side signal SD2 ', at last from the lower circuit 23 digital front signal SD1 of output and digital back side signal SD2 ' to image processor 50.
Fig. 3 is the block scheme according to a kind of Double face scanner of third embodiment of the invention.Present embodiment and Fig. 1 are similar, and difference is that automatic paper conveying apparatus 10 dispenses top internal memory 14 and amplifier 42.Therefore, 13 use analog-digital converters 41 of upper circuit will be simulated back side signal SA2 and be converted digital back side signal SD2 to.Numeral back side signal SD2 is sent to and carries out other signal Processing in the lower circuit 23 and become digital back side signal SD2 ', at last from the lower circuit 23 digital front signal SD1 of output and digital back side signal SD2 ' to image processor 50.Control the duplex scanning action again after clock generator 43 and clock generator 32 are preferably synchronous.
Between the automatic paper conveying apparatus and falt bed scanner of known technology, mainly be the transportation simulator signal of video signal.Yet automatic paper conveying apparatus 10 provided by the present invention mainly is can export digital image signal to falt bed scanner 20, and falt bed scanner 20 provided by the present invention mainly is the digital image signal that can receive from automatic carriage 10.
In sum, main spirit of the present invention is that the assembly that can separate setting is separately positioned among automatic paper conveying apparatus and the falt bed scanner, simplifies the part of falt bed scanner and saves its cost with this.Like this, when the user only needed platform-type scan function or single face paper feed scan function, he did not need to buy the valuable falt bed scanner that a automatic paper conveying apparatus with scan function of can arranging in pairs or groups carries out duplex scanning.When the user needed the scanner of two-sided paper feed scan function, he still needed to buy a falt bed scanner and adds the automatic paper conveying apparatus with scan function with its collocation, so can't improve its cost.Therefore, the present invention can provide bigger elasticity for numerous users, and can reduce the cost that the user spent with various demands effectively.
The above-mentioned preferred embodiment that is proposed in the detailed description of specific embodiment just is used for illustrating easily technology contents of the present invention, rather than in the above-described embodiments with narrow sense of the present invention ground restriction, under the situation that does not exceed spirit of the present invention and claims scope, the many variations of being done is implemented, and all belongs within the scope of the present invention.
Description of reference numerals
SA1 simulation front signal
SA2 simulation back side signal
SC1 bottom clock signal
SC2 top clock signal
SD1 numeral front signal
SD2 numeral back side signal
9 scanners
10 automatic paper conveying apparatus
11 top image read modules
12 paper feed mechanisms
13 upper circuit
14 top internal memories
20 falt bed scanners
21 bottom image read modules
22 lower motor
23 lower circuit
24 bottom internal memories
25 keyboards
26 displays
31 digital signal acceptance divisions
32 clock generators
33 analog-digital converters
34 amplifiers
41 analog-digital converters
42 amplifiers
43 clock generators
50 image processors
Claims (20)
1. a falt bed scanner can be used with the automatic paper conveying apparatus with scan function, scans a front face of document image and back side image simultaneously, it is characterized in that this falt bed scanner comprises:
A bottom image read module obtains simulation front signal thereby be used for reading described front image;
A lower motor is used for moving described bottom image read module;
A lower circuit is used for controlling described bottom image read module, and the positive signal Processing of described simulation is become digital front signal;
A bottom internal memory is connected with described lower circuit, and wherein this lower circuit comprises a digital signal receiving part, is used for receiving the digital back side signal corresponding to described back side image from described automatic paper conveying apparatus.
2. falt bed scanner as claimed in claim 1 is characterized in that, wherein said lower circuit further comprises:
A clock generator is used for producing the bottom clock signal and controls described bottom image read module;
An analog-digital converter and an amplifier are used for respectively the positive conversion of signals of described simulation and zoom into described digital front signal.
3. falt bed scanner as claimed in claim 2 is characterized in that, wherein said bottom clock signal further is sent to described automatic paper conveying apparatus.
4. falt bed scanner as claimed in claim 1 is characterized in that, further comprises a keyboard, is used for supplying the user to control the running of this falt bed scanner.
5. falt bed scanner as claimed in claim 1 is characterized in that, further comprises a display, is used for showing the state of this falt bed scanner.
6. falt bed scanner as claimed in claim 1 is characterized in that, wherein said bottom image read module is a kind of CCD image sensing module or a kind of CIS image sensing module.
7. falt bed scanner as claimed in claim 1 is characterized in that, wherein said lower circuit is a specific use integrated circuit ASIC.
8. an automatic paper conveying apparatus can be used with a falt bed scanner, scans a back face of document image and front image simultaneously, it is characterized in that this automatic paper conveying apparatus comprises:
A top image read module is used for reading described back side image and obtains to simulate back side signal;
A paper feed mechanism is used for presenting described file;
A upper circuit is used for receiving described simulation back side signal, and should simulate back side signal Processing and become digital back side signal to be used for outputing to described falt bed scanner.
9. automatic paper conveying apparatus as claimed in claim 8 is characterized in that, wherein said top image read module is a kind of CCD image sensing module or a kind of CIS image sensing module.
10. automatic paper conveying apparatus as claimed in claim 8 is characterized in that, wherein said upper circuit comprises:
An analog-digital converter is used for described simulation back side conversion of signals is become described digital back side signal.
11. automatic paper conveying apparatus as claimed in claim 8, it is characterized in that, further comprise a top internal memory, be connected to described upper circuit, wherein this upper circuit comprises an analog-digital converter and an amplifier, is used for respectively described simulation back side conversion of signals and zooms into described digital back side signal.
12. automatic paper conveying apparatus as claimed in claim 8 is characterized in that, wherein said upper circuit comprises:
A clock generator is used for producing the top clock signal and controls described top image read module;
An analog-digital converter is used for described simulation back side conversion of signals is become described digital back side signal.
13. automatic paper conveying apparatus as claimed in claim 8 is characterized in that, wherein said upper circuit comprises:
A clock generator is used for producing the top clock signal and controls described top image read module;
An analog-digital converter and an amplifier are used for described simulation back side conversion of signals respectively and zoom into described digital back side signal.
14. a Double face scanner is used for scanning simultaneously a front face of document image and back side image, it is characterized in that this Double face scanner comprises:
An automatic paper conveying apparatus comprises:
A top image read module obtains simulation back side signal thereby be used for reading described back side image;
A paper feed mechanism is used for presenting described file;
A upper circuit is used for controlling described top image read module, and becomes digital back side signal to be used for exporting described simulation back side signal Processing; And
A falt bed scanner comprises:
A bottom image read module obtains simulation front signal thereby be used for reading described front image;
A lower motor is used for moving described bottom image read module;
A lower circuit is used for receiving described simulation front signal, and should simulate positive signal Processing and become digital front signal;
A bottom internal memory is connected with described lower circuit, and wherein this lower circuit comprises a digital signal receiving part, is used for receiving the digital back side signal corresponding to described back side image from described automatic paper conveying apparatus.
15. Double face scanner as claimed in claim 14 is characterized in that, wherein said upper circuit comprises an analog-digital converter, be used for described simulation back side conversion of signals is become described digital back side signal, and described lower circuit further comprises:
A clock generator is used for producing the bottom clock signal and controls described bottom image read module and top image read module;
An analog-digital converter and an amplifier are used for respectively the positive conversion of signals of described simulation and zoom into described digital front signal, and this amplifier is further amplified described digital back side signal.
16. Double face scanner as claimed in claim 14 is characterized in that, wherein:
Described automatic paper conveying apparatus further comprises a top internal memory, is connected to described upper circuit;
Described upper circuit comprises an analog-digital converter and an amplifier, is used for described simulation back side conversion of signals respectively and zooms into described digital back side signal;
Described lower circuit comprises:
A clock generator is used for producing the bottom clock signal and controls described bottom image read module and described top image read module;
An analog-digital converter and an amplifier are used for the positive conversion of signals of described simulation respectively and zoom into described digital front signal.
17. Double face scanner as claimed in claim 14 is characterized in that, wherein said upper circuit comprises:
An analog-digital converter and an amplifier are used for described simulation back side conversion of signals respectively and zoom into described digital back side signal;
A clock generator is used for producing the top clock signal and controls described top image read module;
Described lower circuit comprises:
A clock generator is used for producing the bottom clock signal and controls described bottom image read module;
An analog-digital converter and an amplifier are used for the positive conversion of signals of described simulation respectively and zoom into described digital front signal.
18. Double face scanner as claimed in claim 17 is characterized in that, wherein said automatic paper conveying apparatus further comprises a top internal memory, is connected to described upper circuit.
19. Double face scanner as claimed in claim 14 is characterized in that, wherein said top image read module is a kind of CCD image sensing module or a kind of CIS image sensing module.
20. Double face scanner as claimed in claim 14 is characterized in that, wherein said bottom image read module is a kind of CCD image sensing module or a kind of CIS image sensing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031414478A CN1320493C (en) | 2003-07-08 | 2003-07-08 | Platform-type scanner, automatic paper feeding device and double sided scanner combined by the two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031414478A CN1320493C (en) | 2003-07-08 | 2003-07-08 | Platform-type scanner, automatic paper feeding device and double sided scanner combined by the two |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1567347A CN1567347A (en) | 2005-01-19 |
| CN1320493C true CN1320493C (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031414478A Expired - Lifetime CN1320493C (en) | 2003-07-08 | 2003-07-08 | Platform-type scanner, automatic paper feeding device and double sided scanner combined by the two |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1320493C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63267911A (en) * | 1987-04-27 | 1988-11-04 | Seiko Instr & Electronics Ltd | Laser scanner device |
| CN2447863Y (en) * | 2000-10-24 | 2001-09-12 | 虹光精密工业股份有限公司 | Scanner with duplex scan correction |
-
2003
- 2003-07-08 CN CNB031414478A patent/CN1320493C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63267911A (en) * | 1987-04-27 | 1988-11-04 | Seiko Instr & Electronics Ltd | Laser scanner device |
| CN2447863Y (en) * | 2000-10-24 | 2001-09-12 | 虹光精密工业股份有限公司 | Scanner with duplex scan correction |
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| Publication number | Publication date |
|---|---|
| CN1567347A (en) | 2005-01-19 |
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