CN1054485C - Paper feeding scanner with previewing scan - Google Patents
Paper feeding scanner with previewing scan Download PDFInfo
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- CN1054485C CN1054485C CN97117557A CN97117557A CN1054485C CN 1054485 C CN1054485 C CN 1054485C CN 97117557 A CN97117557 A CN 97117557A CN 97117557 A CN97117557 A CN 97117557A CN 1054485 C CN1054485 C CN 1054485C
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Abstract
The present invention relates to a paper feeding scanner capable of previewing scan. The present invention comprises a shell body, wherein a paper feeding passage, a roller mechanism, a step motor, a first detector, a second detector, a scan circuit and a scan control circuit containing a position recorder. When the control circuit receives a previewing scan command, the step motor is started to cause a file to move towards the back end of the passage, the scan circuit is started, and previewing scan begins to be carried out to the file until the back end of the file is detected by the first detector. The step motor is controlled by the control circuit according to the file position recorded by the position recorder to cause the file to forward move to the initial position of the file.
Description
The present invention relates to a kind of paper feeding scanner (sheet-fed scanner), relate in particular to a kind of paper feeding scanner of previewing scan.
In general office, it is that view data is with the input computer that scanner often is used to file conversion.Current scanline instrument majority can provide quite high resolution, as 600 * 600dpi (counting of per inch).Under so high resolution, it is slow that sweep speed can become, and the data volume of scanning gained is also very huge.Therefore before scanning document, the part that general scanning software can provide a kind of function of previewing scan to allow the user select to need scanning usually is with the data volume that lowers scanning and shorten sweep time.When carrying out previewing scan, scanner sweeps a file to be scanned computer to produce the relatively poor document image of a resolution apace with low-res.Thereafter the user needs by taking out an invisible scanning zone in this document image to indicate needed sweep limits, and scanner just begins the invisible scanning zone of this document is carried out the formal scanning of high-res when reception one contains the formal scan instruction in this invisible scanning zone.
Yet in common scanner, paper feeding scanner is simple in structure because of it, usually can only directly carry out single time formal scanning and can't carry out previewing scan, because paper feeding scanner will directly be discharged file outside the body after finishing single time scanning work to a file to be scanned.Because file is not retained in the body, the user just can't require scanner to scan once more behind the invisible scanning zone.This shortcoming makes the user of paper feeding scanner can't enjoy the advantage of previewing scan.
The object of the present invention is to provide the paper feeding scanner of a previewing scan, to address the above problem.
The object of the present invention is achieved like this, and kind of a paper feeding scanner promptly is provided, and it includes: a housing, be provided with a paper-feeding passage in it, and this passage includes a front end, is used for feed-in one file to be scanned; And a rear end, be used for this document is shifted out this paper feeding scanner; One idler wheel mechanism is located on the described passage, is used for the mode clamp this document with a kind of rolling; One stepper motor is used for driving described idler wheel mechanism forward or backward, so that this document moves forward or backward; First and second detector is located on the described passage, is positioned at the front side and the rear side of described idler wheel mechanism, is used for the sensing file; The one scan circuit is located on the described passage, between described two detectors, is used for scanning document; The one scan control circuit, it is electrically connected on described stepper motor, scanning circuit and described two detectors, be used for the operation of gated sweep instrument, this control circuit includes a position recorder, is used for the position that step number is demarcated file that moves forward and backward according to described stepper motor; When the front end of file by feed-in scanner feed-in mouth and then by first detector senses, control circuit can start stepper motor this document is moved to the passage rear end, detect up to second detector till the front end of this document, this moment, control circuit utilized position recorder to demarcate the original position of this document; Then when control circuit receives previewing scan instruction, this control circuit can start stepper motor this document is moved to the passage rear end, and the startup scanning circuit begins this document is carried out previewing scan, detect up to first detector till the rear end of this document, this control circuit moves to this document the original position of file to the passage front end according to the document location control step motor that position recorder write down afterwards.
The present invention also provides a kind of previewing scan method that is used for paper feeding scanner, and this paper feeding scanner includes: a housing is provided with a paper-feeding passage in it, this passage includes a front end, be used for feed-in one file to be scanned, and a rear end, be used for file is shifted out paper feeding scanner; One idler wheel mechanism is located on the described passage, is used for the mode clamp this document with a kind of rolling; One stepper motor is used for driving described idler wheel mechanism forward or backward, so that this document moves forward or backward; First and second detector is located on the described passage, is positioned at the front side and the rear side of described idler wheel mechanism, is used for sensing this document; The one scan circuit is located on the described passage, between described pair of detectors, is used to scan this document; The one scan control circuit, be electrically connected on described stepper motor, scanning circuit and described pair of detectors, be used to control the operation of this scanner, this control circuit includes a position recorder, is used for the position that step number is demarcated this document that moves forward and backward according to stepper motor; Described previewing scan method includes: (1) during by the feed-in mouth of feed-in scanner, starts stepper motor to the front end of file when first detector senses, and file is moved to described passage rear end, detects up to second detector till the front end of file; (2) utilize position recorder to demarcate the original position of file; (3) receive previewing scan when instruction when described control circuit, start stepper motor this document is moved to the passage rear end, and start scanning circuit and begin this document is carried out previewing scan, detect up to first detector till the rear end of this document; (4) come the control step motor this document to be moved to the original position of file to the passage front end according to the document location that position recorder write down.
The invention has the advantages that, a kind of function of previewing scan can be provided for paper feeding scanner, thereby make the part that the user selects needs scanning, to lower the data volume that scans and to shorten sweep time.
Describe the present invention in detail below in conjunction with the accompanying drawing illustrated embodiment, wherein:
Fig. 1 is connected in the external view of a computer system for paper feeding scanner of the present invention;
Fig. 2 is the profile of paper feeding scanner shown in Figure 1 along tangent line 2-2;
Fig. 3 is the functional block diagram of computer system shown in Figure 1 and paper feeding scanner;
Fig. 4 carries out the program of previewing scan and formal scanning for paper feeding scanner of the present invention.
See also Fig. 1.Fig. 1 is connected in the external view of a computer system 10 for paper feeding scanner 14 of the present invention.Computer system 10 includes a display 11, one mouses 13, and the computer 12 that is connected in display 11 and mouse 13.Scanner 14 comprises a housing 16, and its front end is provided with a feed-in mouth 22, is used for feed-in file to be scanned, and a previewing scan key 18 is located at the front end of housing 16, and a file 20 to be scanned is placed on the feed-in mouth 22.File 20 is left from the rear end of scanner 14 then by feed-in mouth 22 feed-ins of scanner 14 front ends.
See also Fig. 2.Fig. 2 is the profile of paper feeding scanner 14 shown in Figure 1 along tangent line 2-2.It shows that paper feeding scanner 14 comprises a paper-feeding passage 30, its front end is provided with a feed-in mouth 22, one is positioned at the idler wheel mechanism 32 that is used on the paper-feeding passage 30 with a kind of rotatable mode clamp file 20, one is used for driving idler wheel mechanism 32 forward or backward so that file 20 is able to mobile forward or backward stepper motor 34, two detectors 38 and 40 are located on the passage 30, be positioned at the front side and the rear side of idler wheel mechanism 32, be used for sensing file 20, and scanning circuit 36, be located on the passage 30 between the detector 38 and 40, be used for scanning document 20.
Fig. 3 is the functional block diagram of computer system 10 shown in Figure 1 and paper feeding scanner 14.Scanner 14 comprises the scan control circuit 42, stepper motor 34, scanning circuit 36 and the previewing scan key 18 that are electrically connected on detector 38 and 40, is used for the operation of gated sweep instrument 14.Scan control circuit 42 includes a position recorder 44, is used for the position that step number is demarcated file 20 that moves forward and backward according to stepper motor 34.When stepper motor 34 during at move 20, the step number accumulative total that scan control circuit 42 can move forward and backward is to position recorder 44, accurately to determine the position of file 20.Computer system 10 includes a display 11, one mouses 13, and a computer 12 that is connected in a display 11 and a mouse 13.Computer 12 comprises a memory 46, be used to store one scan control program 48 and formally scan the formal image file 52 that is produced via preview image files 50 or warp that scanning circuit 36 previewing scans are produced, computer 12 also comprises a processor 54, is used to carry out scan control program 48.Display 11 is used for the display image picture.
Fig. 4 is the performed previewing scan of the scan control circuit 42 of paper feeding scanner 14 of the present invention and the flow chart of formal scanning imaging system 60, and it includes the following step:
Step 61: whether the front end that detector 38 detects file 20 is admitted to feed-in mouth 22, if not then
Continue to detect;
Step 62: start stepper motor 34, file 20 is moved to passage 30 rear ends;
Step 63: whether detector 40 detects the front end of file 20, then continues if not to detect;
Step 64: counter-rotating stepper motor 34 1 predetermined step numbers make the front end of file 20 can be positioned at scanning
Under the circuit 36;
Step 65: position recorder is set at original position;
Step 66: detect previewing scan key 18 and whether pressed, then continue if not to detect;
Step 67: start stepper motor 34, file 20 is moved to passage 30 rear ends, and simultaneously more
The position data of reposition register 44 and startup scanning circuit 36, it is right to begin
Step 68: whether detector 38 detects the rear end of file 20, then skips to step 67 if not;
Step 69: be rotated further stepper motor 34 1 predetermined step numbers, make the shadow that is positioned at file 20 rear ends
Picture can continue to finish scanning by scanning circuit 36, then according to position recorder 44
The position data of the file 20 that the is write down stepper motor that reverses is with file 20
Move to the original position of file 20 to passage 30 front ends.
Step 70: detect whether to receive a formal scan instruction that contains the invisible scanning zone, if not then
Continue to detect;
Step 71: utilize stepper motor 34, scanning circuit 36 and position recorder 44 with file 20
Move rear end to passage 30, and the invisible scanning zone of file 20 is just being carried out
Formula scanning;
Step 72: detect formal scanning and whether finish, then skip to step 71 if not;
Step 73: utilize stepper motor 34 file 20 to be shifted out the rear end of passage 30.
In step 66, the user presses previewing scan key 18 and shows that the user sends previewing scan instruction, and scan control program 48 begins to carry out the previewing scan operation according to this, to produce preview image files 50.The previewing scan instruction also can be sent via the scan control program 48 of computer 12 by the user, carries out previewing scan to start 14 pairs of files of scanner 20.When scan control program 48 receives preview image that scanner 14 produced and it is stored in the memory 46 with after forming preview image files 50, scan control program 48 is shown in preview image files 50 on the display 11, so that the user selects an invisible scanning zone.Thereafter scan control program 48 produces a formal scan instruction and it is passed to scanner 14 according to this invisible scanning zone, makes 14 pairs of files 20 of scanner formally scan and produce formal image file 52.
Claims (7)
1. paper feeding scanner, it includes:
One housing is provided with a paper-feeding passage in it, this passage includes a front end, is used for feed-in one file to be scanned, and a rear end, is used for this document is shifted out paper feeding scanner;
One idler wheel mechanism is located on the described passage, is used for the mode clamp this document with a kind of rolling;
One stepper motor is used for driving described idler wheel mechanism forward or backward, so that this document moves forward or backward;
First and second detector is located on the described passage, is positioned at the front side and the rear side of described idler wheel mechanism, is used for sensing this document;
The one scan circuit is located on the described passage, between described two detectors, is used to scan this document;
The one scan control circuit, be electrically connected on described stepper motor, scanning circuit and described two detectors, be used for the operation of gated sweep instrument, this control circuit includes a position recorder, is used for the position that step number is demarcated this document that moves forward and backward according to described stepper motor;
It is characterized in that, when the front end of this document by feed-in scanner feed-in mouth and then by described first detector senses, described control circuit can start described stepper motor this document is moved to described passage rear end, till described second detector detected the front end of this document, this moment, described control circuit utilized described position recorder to demarcate the original position of this document; Then when described control circuit receives previewing scan instruction, this control circuit can start described stepper motor this document is moved to described passage rear end, and start described scanning circuit and begin this document is carried out previewing scan, till described first detector detected the rear end of this document, described afterwards control circuit was controlled described stepper motor moves to this document original position from file to described passage front end according to the document location that described position recorder write down.
2. paper feeding scanner as claimed in claim 1, wherein after described control circuit is finished described previewing scan instruction, if described control circuit receives one when containing the formal scan instruction in an invisible scanning zone, described control circuit can utilize described stepper motor, scanning circuit and position recorder that this document is moved and the invisible scanning zone of this document is formally scanned to described passage rear end.
3. paper feeding scanner as claimed in claim 2, wherein said scan control circuit is electrically connected on a computer system, this computer system includes a display, be used for the display image picture, one memory, be used to store the one scan control program and formally scan the formal image file that is produced via preview image files or warp that described scanning circuit previewing scan is produced, and a processor, be used to carry out the scan control program; Wherein after the scan control program receives this preview image file, this scan control program is shown on the display this preview image files so that a user selects described invisible scanning zone, thereafter described scan control program can produce described formal scan instruction according to this invisible scanning zone, to control this paper feeding scanner this document is done formal scanning, to produce described formal image file.
4. paper feeding scanner as claimed in claim 3, wherein said previewing scan instruction is done previewing scan and is produced described preview image files this document to start this paper feeding scanner by the described scan control program send of this computer.
5. paper feeding scanner as claimed in claim 3, it further includes a previewing scan key, be electrically connected on described control circuit, be used to produce described previewing scan instruction, when a user pressed this previewing scan key, described control circuit promptly is activated and begins did previewing scan to produce described preview image files to this document.
6. previewing scan method that is used for paper feeding scanner, this paper feeding scanner includes:
One housing is provided with a paper-feeding passage in it, this passage includes a front end, is used for feed-in one file to be scanned, and a rear end, is used for file is shifted out paper feeding scanner;
One idler wheel mechanism is located on the described passage, is used for the mode clamp this document with a kind of rolling;
One stepper motor is used for driving described idler wheel mechanism forward or backward, so that this document moves forward or backward;
First and second detector is located on the described passage, is positioned at the front side and the rear side of described idler wheel mechanism, is used for sensing this document;
The one scan circuit is located on the described passage, between described pair of detectors, is used to scan this document;
The one scan control circuit, be electrically connected on described stepper motor, scanning circuit and described pair of detectors, be used to control the operation of this scanner, this control circuit includes a position recorder, is used for the position that step number is demarcated this document that moves forward and backward according to described stepper motor; Described previewing scan method includes:
(1) during by the feed-in mouth of feed-in scanner, starts described stepper motor to the front end of this document when described first detector senses, this document is moved to described passage rear end, till described second detector detects the front end of this document;
(2) utilize described position recorder to demarcate the original position of this document;
(3) when described control circuit receives previewing scan instruction, starting described stepper motor moves this document to described passage rear end, and start described scanning circuit and begin this document is carried out previewing scan, till described first detector detects the rear end of this document;
(4) control described stepper motor moves to this document original position from file to described passage front end according to the document location that described position recorder write down.
7. previewing scan method as claimed in claim 6, it further includes:
(5) receive one when containing the formal scan instruction in an invisible scanning zone when described control circuit, utilize described stepper motor, scanning circuit and position recorder that this document is moved and the invisible scanning zone of described file is formally scanned to described passage rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97117557A CN1054485C (en) | 1997-09-01 | 1997-09-01 | Paper feeding scanner with previewing scan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97117557A CN1054485C (en) | 1997-09-01 | 1997-09-01 | Paper feeding scanner with previewing scan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1210417A CN1210417A (en) | 1999-03-10 |
| CN1054485C true CN1054485C (en) | 2000-07-12 |
Family
ID=5174495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97117557A Expired - Fee Related CN1054485C (en) | 1997-09-01 | 1997-09-01 | Paper feeding scanner with previewing scan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054485C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454959C (en) * | 2004-09-10 | 2009-01-21 | 虹光精密工业（苏州）有限公司 | Scanner with fast addressing function and method thereof |
| CN101350880B (en) * | 2008-08-28 | 2011-02-16 | 苏州佳世达电通有限公司 | Single machine scanning apparatus and single machine scanning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128459A (en) * | 1994-06-20 | 1996-08-07 | 汤姆森消费电子有限公司 | Scan velocity modulation circuit |
| CN1143879A (en) * | 1995-08-21 | 1997-02-26 | 明碁电脑股份有限公司 | Image scanner |
| CN1148771A (en) * | 1990-08-02 | 1997-04-30 | 汤姆森消费电子有限公司 | Electron beam scanning-speed modulating device |
-
1997
- 1997-09-01 CN CN97117557A patent/CN1054485C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148771A (en) * | 1990-08-02 | 1997-04-30 | 汤姆森消费电子有限公司 | Electron beam scanning-speed modulating device |
| CN1128459A (en) * | 1994-06-20 | 1996-08-07 | 汤姆森消费电子有限公司 | Scan velocity modulation circuit |
| CN1143879A (en) * | 1995-08-21 | 1997-02-26 | 明碁电脑股份有限公司 | Image scanner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1210417A (en) | 1999-03-10 |
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Owner name: BENQ ELECTRONS STOCK CO., LTD. Free format text: FORMER NAME OR ADDRESS: MINGHONG STOCK CO., LTD. Owner name: BENQ MOTOR CO., LTD. Free format text: FORMER NAME OR ADDRESS: BENQ ELECTRONS STOCK CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: BENQ Corp. Patentee before: BenQ Corporation Patentee after: BenQ Corporation Patentee before: MINGQI COMPUTER Co.,Ltd. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |