CN1469299A - Scanner combination with double-sided scanning function and its light source controlling method - Google Patents
Scanner combination with double-sided scanning function and its light source controlling method Download PDFInfo
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- CN1469299A CN1469299A CNA021262292A CN02126229A CN1469299A CN 1469299 A CN1469299 A CN 1469299A CN A021262292 A CNA021262292 A CN A021262292A CN 02126229 A CN02126229 A CN 02126229A CN 1469299 A CN1469299 A CN 1469299A
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Abstract
The scanner combination with double-sided scanning function is suitable for scanning two sides of the document to be scanned, and includes the first optical scanning module and the second optical scanning module. The first optical scanning module includes the first light source unit and the first scanning line accepting hole and the second optical scanning module includes the second light source unit and the second scanning line accepting hole. The light source controlling method of the scanner combination includes calculating the effect distance between the first light source unit and the second scanning line accepting hole; making the first optical scanning module move towards the first direction while stopping the second optical scanning module in the beginning of the scanning; and making the second optical scanning module move towards the first direction after actual distance between the first light source unit and the second scanning line accepting hole is greater than the effect distance.
Description
Technical field
The invention relates to a kind of scanner group with double-sided scanning function, and particularly relevant for the two light source control methods in the scanner group.
Background technology
Scanner all was the object to be scanned to scan single when the scanning object to be scanned in the past.Please refer to Fig. 1, it is a synoptic diagram of traditional platform formula scanner, general falt bed scanner 100 as shown in Figure 1 all has shell 102, dispose the glass platform 104 of placing object to be scanned 101 in the shell 102, shell 102 inside then are provided with optic scan module 106, and optic scan module 106 comprises light supply apparatus 108 and the catoptrical sweep trace receiver hole 109 that receives light supply apparatus 108.It is to move around in order to drive optic scan module 106 that one drive unit 110 is wherein arranged, and linear guide mechanism 112 connects optic scan module 106 and drive unit 110, advances on the Y direction in order to fixed optics scan module 106.
When beginning to scan, drive unit 110 can drive optic scan module 106 by linear guide mechanism 112 and advance on the Y direction, this moment, light supply apparatus 108 can emit beam, after this light is reflected by the object to be scanned on the glass platform 104 101, can receive reflection ray via sweep trace receiver hole 109, again via behind a plurality of catoptron 114 reflections and lens (Lens) 116 optically focused, convert electric signal again to by image capture unit 118 receiving optical signals, then handle by the circuit arrangement in the falt bed scanner 100 (not illustrating) again, finish scanning motion according to this.
By finding out among the last figure, falt bed scanner 100 can only scan at the one side that object to be scanned 101 is adjacent to glass platform 104, if this object to be scanned 101 is two-sided objects to be scanned, in the time of then will scanning the another side of object to be scanned 101, promptly need falt bed scanner 100 to be scanned to the another side of object to be scanned 101 manually with object to be scanned 101 turn-overs.
If this falt bed scanner 100 is in for the popular office that uses, when then everyone wants the scanning double-side object to be scanned in office, all must wait for twice sweep time in that falt bed scanner 100 is other, and for example during the two-sided object to be scanned of many parts of one less important scannings of fruit, then waste the stand-by period.
Please refer to Fig. 2, it is the duplex scanning module of known a kind of scanning double-side object to be scanned.Mainly comprise paper-advance unit 210, paper extraction unit 211, scanning area 212, slewing equipment 31 and contact-type image capture device 27.Wherein the roller 23,24,25,29,30 of configuration all is the direct of travel of the two-sided object to be scanned of control in paper-advance unit 210, paper extraction unit 211, scanning area 212 and slewing equipment 31, is to allow contact-type image capture device (CIS) 27 capture the usefulness of the content of objects to be scanned and a glass platform 26 is arranged in scanning area 212.
When two-sided object to be scanned passes through glass platform 26 tops gradually, contact-type image capture device 27 promptly can capture the first face picture of two-sided object to be scanned, and when two-sided object to be scanned passes through slewing equipment 31, promptly can be with two-sided object to be scanned upset, when making once more by glass platform 26 tops, contact-type image capture device 27 promptly can capture the second face picture of two-sided object to be scanned.
But though the two-sided object to be scanned of this mechanism's autoscan, but owing to the file guide path of being made up of paper-advance unit 210, paper extraction unit 211, scanning area 212 and slewing equipment 31 is oversize and crooked, be to be easy to have the phenomenon generation of paperboard, and because of scanning at twice, be still need waiting for twice sweep time, in addition by among the figure as can be known its employed image capture unit be the lower contact-type image capture device of resolution.
Summary of the invention
In view of this, the objective of the invention is to propose a kind of have the scanner group of double-sided scanning function and light source control method wherein, do not need artificial turn-over and long file guide rails, can utilize high-resolution non-contact image capture device " simultaneously " that two-sided object to be scanned is carried out image capture, to reduce by wait sweep time of one times.
For reaching above-mentioned purpose, the invention provides a kind of scanner group with double-sided scanning function, can scan a two-sided object to be scanned simultaneously, this scanner group system with double-sided scanning function is made up of first scanner and second scanner, wherein first scanner is in order to the scanning double-side object to be scanned first, and second scanner then is second in order to the scanning double-side object to be scanned.In addition, be connected mechanism by one and be coupling first scanner in second scanner.
In the first above-mentioned scanner, comprise: first shell, first glass platform, first optic scan module, first drive unit and the first linear guide mechanism.Wherein, first glass platform is disposed in first shell, in order to place two-sided object to be scanned, first optic scan module then is positioned at first glass platform below and comprises that first light supply apparatus and the first sweep trace receiver hole, the first linear guide mechanism are the usefulness that connects first optic scan module and first drive unit.
In the second above-mentioned scanner, comprise second shell, second glass platform, second optic scan module, second drive unit and the second linear guide mechanism.Wherein, second glass platform be disposed in second shell and with first glass platform symmetry parallel to each other, second optic scan module then is positioned at second glass platform top and comprises that the secondary light source device and the second sweep trace receiver hole, the second linear guide mechanism are in order to connect second optic scan module and second drive unit.
In a preferable situation, first optic scan module is identical with the scanning direct of travel of second optic scan module.
In another preferable situation, first optic scan module is opposite with the scanning direct of travel of second optic scan module.
Though above-mentioned scanner group can scan two-sided object to be scanned simultaneously automatically, but the light of launching owing to light supply apparatus has part shines the opposite through two-sided object to be scanned sweep trace receiver hole, therefore the sweep trace receiver hole can receive the veiling glare that planar light source device is sent, cause the image quality that scans bad, be the light source control method that proposes a kind of scanner group with the present invention again, can improve the bad result of image quality who causes because of above-mentioned reason.
The light source control method of this scanner group comprises: the distance that influences of calculating first light supply apparatus and the second sweep trace receiver hole earlier, when beginning to scan, make first optic scan module advance and suspend advancing of second optic scan module towards first direction, when first optic scan module advances gradually, whether the actual range of judging first light supply apparatus and the second sweep trace receiver hole is greater than influencing distance, when the actual range of first light supply apparatus and the second sweep trace receiver hole greater than influence apart from the time, make second optic scan module advance towards first direction.
The present invention also proposes the light source control method of another kind of scanner group, comprise: calculating second of the first influence distance of first light supply apparatus and the second sweep trace receiver hole and the secondary light source device and the first sweep trace receiver hole influences distance, when beginning to scan, make first optic scan module before first direction so that second optic scan module advance towards second direction, wherein first direction and second direction are reverse direction.
When first actual range of first light supply apparatus and the second sweep trace receiver hole influences distance smaller or equal to first, or second actual range of the secondary light source device and the first sweep trace receiver hole smaller or equal to second the influence apart from the time, close the secondary light source device and suspend second optic scan module and advance, and make first optic scan module continue scanning.When first actual range of first light supply apparatus and the second sweep trace receiver hole greater than second actual range of the first influence distance and secondary light source device and the first sweep trace receiver hole greater than second influence apart from the time, make the continuation of second optic scan module advance towards second direction.
The present invention proposes a kind of light source control method of scanner group in addition again, comprise: calculating second of the first influence distance of first light supply apparatus and the second sweep trace receiver hole and the secondary light source device and the first sweep trace receiver hole influences distance, when beginning to scan, make first optic scan module before first direction so that second optic scan module advance towards second direction, wherein first direction and second direction are reverse direction.
When first actual range of first light supply apparatus and the second sweep trace receiver hole influences distance smaller or equal to first, or second actual range of the secondary light source device and the first sweep trace receiver hole smaller or equal to second the influence apart from the time, close the secondary light source device and make second optic scan module advance, and make first optic scan module continue scanning towards first direction.When first actual range of first light supply apparatus and the second sweep trace receiver hole greater than second actual range of the first influence distance and secondary light source device and the first sweep trace receiver hole greater than second influence apart from the time, make the continuation of second optic scan module advance towards second direction.
The present invention proposes a kind of light source control method of scanner group again, comprise: second of first of calculating first light supply apparatus and the second sweep trace receiver hole influence distance and the secondary light source device and the first sweep trace receiver hole influences distance earlier, when beginning to scan, make first optic scan module before first direction so that second optic scan module advance towards second direction, wherein first direction and second direction are reverse direction.
When first actual range of first light supply apparatus and the second sweep trace receiver hole influences distance smaller or equal to first, or second actual range of the secondary light source device and the first sweep trace receiver hole smaller or equal to second the influence apart from the time, successively close first light supply apparatus and close the secondary light source device, when when closing first light supply apparatus, make first optic scan module advance towards second direction, when closing the secondary light source device, make second optic scan module advance towards first direction.When first optic scan module and second optic scan module respectively once more when first direction and second direction are advanced, controlling between the interference range between first optic scan module and second optic scan module can be in repeated rows inbound path separately.Can open first and second light supply apparatus afterwards once more and make first optic scan module advance, and make second optic scan module advance towards second direction towards first direction.
Comprehensively above-mentioned, the present invention utilizes the top and the bottom scanner with the two-sided object to be scanned of while autoscan, and causes the bad result of scan-image quality for avoiding light source to penetrate contribution, is to allow the sweep trace receiver hole can avoid the light that planar light source device is launched.
Description of drawings
Fig. 1 is a synoptic diagram of known single flat-bed scanner;
Fig. 2 is the known synoptic diagram that utilizes a kind of duplex scanning module of scanning double-side object to be scanned;
Fig. 3 is the synoptic diagram with scanner group of double-sided scanning function provided by the invention;
Fig. 4 is another synoptic diagram with scanner group of double-sided scanning function provided by the invention;
Fig. 5 A and Fig. 5 B are the schematic internal view with scanner group of double-sided scanning function provided by the invention;
Fig. 6 is another schematic internal view with scanner group of double-sided scanning function provided by the invention;
Fig. 7 is the process flow diagram of scanner group when scanning according to Fig. 5 A and Fig. 5 B;
Fig. 8 is the synoptic diagram according to the scanning flow process of Fig. 7;
Fig. 9 is the process flow diagram of scanner group when scanning according to Fig. 6;
Figure 10 is the synoptic diagram according to the scanning flow process of Fig. 9;
Figure 11 is scanner group another process flow diagram when scanning according to Fig. 6;
Figure 12 is the synoptic diagram according to the scanning flow process of Figure 11;
Figure 13 is scanner group another process flow diagram when scanning according to Fig. 6; And
Figure 14 is the synoptic diagram according to the scanning flow process of Figure 13.
100: scanner 210: paper-advance unit
101: file 211 to be scanned: paper extraction unit
102: shell 212: scanning area
104: glass platform 31: slewing equipment
106: optic scan module 26: glass platform
108: light supply apparatus 27: the contact-type image capture device
109: sweep trace receiver hole 23,24,25,29,30: roller
110: drive unit 30,60: the top scanner
112: linear guide adorns 32,62: the lower scan instrument
114: catoptron 33: be connected mechanism
116: lens 34,36: be connected rod
118: image capture unit 302,322,304,324: the location axle sleeve
306: panel 50: the face object to be scanned
308,602: upper case 328,622: lower case
310,604: top glass platform 330,624: the bottom glass platform
312,312a, 312b, 606: the top optic scan module
332,626: the bottom optic scan module
318,612: upper drive mechanism 338,632: the bottom drive unit
316,316,610: the linear guide mechanism in top
336,630: the linear guide mechanism in bottom
313,313a, 313b, 607: the top light supply apparatus
333,627: the bottom light supply apparatus
314,314a, 314b, 608: top sweep trace receiver hole
334,628: lower scan line receiver hole
Step s70～s78 is an implementation step of a preferred embodiment of the present invention
Step s90～s99 is an implementation step of a preferred embodiment of the present invention
Step s110～s120 is an implementation step of a preferred embodiment of the present invention
Step s130～s140 is an implementation step of a preferred embodiment of the present invention
Embodiment
Please refer to Fig. 3, it is a kind of synoptic diagram with scanner group of double-sided scanning function according to a preferred embodiment of the present invention.This scanner group with double-sided scanning function is made up of top scanner 30 and lower scan instrument 32, top scanner 30 and lower scan instrument 32 be the scanning double-side object to be scanned simultaneously, respectively in order to first and second of scanning double-side object to be scanned.In addition, the scanner group also comprises that is connected a mechanism 33, in order to the top scanner 30 that is coupling in lower scan instrument 32.
Wherein, the mode that linking mechanism is coupling has a variety of, exemplify two kinds in the present embodiment, respectively as shown in Figures 3 and 4, wherein in Fig. 3, be to allow be connected mechanism 33 enclosure axis of top scanner 30 is connected to the same side of the shell of lower scan instrument 32, so that the opposite side of top scanner 30 and lower scan instrument 32 presents fan-shaped opening r.
In the time two-sided object to be scanned will being put into the scanner group, promptly open top scanner 30 to present fan-shaped opening r, make two-sided object to be scanned can be placed on the lower scan instrument 32, again top scanner 30 is closed, can allow 32 pairs of two-sided objects to be scanned of top scanner 30 and lower scan instrument carry out duplex scanning simultaneously.
And the linking mechanism in Fig. 4 comprises linking rod 34 and is connected rod 36, wherein, the left side of the shell of linking rod 34 linking top scanners 30 and the shell of lower scan instrument 32, be connected rod 36 and then be connected the shell of the shell of top scanner 30 and lower scan instrument 32 in the right side, its linking for example is at the affixed location axle sleeve 302 of the shell of top scanner 30, the then affixed location of the shell axle sleeve 322 of the lower scan instrument 32 of the same side, utilize linking rod 34 to run through location axle sleeve 302 and location axle sleeve 322, at opposite side also together, at the affixed location axle sleeve 304 of the opposite side of top scanner 30 shells, the then affixed location of lower scan instrument 32 shells axle sleeve 324 in axle sleeve 304 the same sides, location, utilization is connected excellent 36 and runs through location axle sleeve 304 and location axle sleeve 324, makes top scanner 30 can prolong linking rod 34 and the 36 parallel risings of linking rod.
In the time two-sided object to be scanned will being put into the scanner group, can utilize the control knob on the panel 306 prolonging linking rod 34 and be connected rod 36 parallel risings by top scanner 30, make two-sided object to be scanned can be placed on the lower scan instrument 32, again top scanner 30 is closed, can allow 32 pairs of two-sided objects to be scanned of top scanner 30 and lower scan instrument carry out duplex scanning simultaneously.
In above-mentioned scanner group, each other loam cake each other between top scanner 30 and the lower scan instrument 32.
In addition, please merge the element that it is required when respectively comprising scanning in above-mentioned top scanner 30 and the lower scan instrument 32 with reference to figure 5A, Fig. 5 B and Fig. 6.Shown in Fig. 5 A, wherein lower scan instrument 32 comprises: the linear guide mechanism 336 in lower case 328, bottom glass platform 330, bottom optic scan module 332, bottom drive unit 338 and bottom.Wherein, lower case 328 disposes the bottom glass platform 330 of placing two-sided object to be scanned 50, lower case 328 inside then are provided with the bottom optic scan module 332 that is positioned at bottom glass platform 330 belows, this bottom optic scan module 332 comprises bottom light supply apparatus 333 and receives the catoptrical lower scan line receiver hole 334 of bottom light supply apparatus 333, its middle and lower part drive unit 338 is to move around in order to drive bottom optic scan module 332, the linear guide mechanism 336 in bottom then is to connect bottom optic scan module 332 and bottom drive unit 338, advances on the Y direction in order to fixing bottom optic scan module 332.
And in top scanner 30, comprise: the linear guide mechanism 316 in upper case 308, top glass platform 310, top optic scan module 312, upper drive mechanism 318 and top.Wherein, upper case 308 disposes the top glass platform 310 of placing two-sided object to be scanned 50, and top glass platform 310 is parallel symmetry with the bottom glass platform 330 of lower scan instrument 32 each other.In addition, then be provided with the top optic scan module 312 that is positioned at above the top glass platform 310 in upper case 308 inside, this top optic scan module 312 comprises top light supply apparatus 313 and receives the catoptrical top sweep trace receiver hole 3 14 of top light supply apparatus 313, wherein upper drive mechanism 318 is to move around in order to drive top optic scan module 312, the linear guide mechanism 316 in top then is to connect top optic scan module 312 and upper drive mechanism 318, advances on the Y direction in order to fixing top optic scan module 312.
Wherein, in top optic scan module 312 and bottom optic scan module 332, more comprise optical system and image capture unit, do not draw at this, therefore be the knowledge that those skilled in the art can know by inference, the image capture unit that wherein includes is charge coupled cell (the Charge Couple Device that has high-resolution; Be called for short CCD), and optical system is made up of catoptron and focus lamp.
In addition, about the scanning direct of travel of the interior bottom optic scan module 332 of the top optic scan module 312 in the top scanner 30 and lower scan instrument 32 proposes two kinds of possible direct of travels in the present invention, comprise as Fig. 5 A given, its direction of scanning is all identical, another kind of then given as Fig. 6, its direction of scanning is opposite, when just the optic scan module 606 in the top scanner 60 was advanced in scan period with the optic scan module 626 in the lower scan instrument 62, the situation that has intersection existed.
And no matter be to advance in the same way or negative line feed, the scanner group of being formed by top scanner and lower scan instrument that the present invention proposes, all can scan two-sided object to be scanned automatically simultaneously, and do not need manual turn-over and need not wait for sweep time of twice yet, but the light of launching owing to light supply apparatus has part shines the opposite through two-sided object to be scanned sweep trace receiver hole, with Fig. 5 A and Fig. 5 B is example, its for the bottom optic scan module 332 in the top optic scan module in the top scanner 30 312 and the lower scan instrument 32 when carrying out in the same way each other light supply apparatus to the influence of each other sweep trace receiver hole.
Suppose to be positioned at the beginning the start address all identical (shown in Fig. 5 A) of bottom optic scan module 332 with the top optic scan module 312 of the same side, and in the time will beginning to scan, bottom light supply apparatus 333 is openings with top light supply apparatus 313, that is to say that bottom light supply apparatus 333 and top light supply apparatus 313 all can emit beam first and second that is radiated at two-sided object to be scanned 50 respectively.When first of the two-sided object to be scanned 50 of bottom light supply apparatus 333 irradiation, have reflected light and be incident in lower scan line receiver hole 334 from first face of two-sided object to be scanned 50, same, when second of the two-sided object to be scanned 50 of top light supply apparatus 313 irradiation, have reflected light and be incident in top sweep trace receiver hole 314 from second face of two-sided object to be scanned 50.After folded light beam was injected the sweep trace receiver hole, promptly optical system and the image capture unit by separately optic scan module inside received and handles.
But as can be known by Fig. 5 A, when top light supply apparatus 313 emission light, part light also can see through two-sided object to be scanned 50 and lower scan line receiver hole 334 is accepted except the veiling glare the reflected light that itself should receive (the oblique dotted line shown in Fig. 5 A), situation similarly also can occur between bottom light supply apparatus 333 and the top sweep trace receiver hole 314, and under this situation, the image that can cause scanning may be the overlapping part of two sides sweep trace, and make received image quality bad, promptly noise is too many.
And to avoid the situation of this class to take place, must avoid sweep trace receiver hole own to receive the other side's light supply apparatus and see through the transmitted ray that two-sided object to be scanned sent.
Shown in Fig. 5 B, promptly need make the transmitted light scope (i.e. a left side tiltedly dotted line) of top light supply apparatus 313a can not be in 334 scopes that can receive of lower scan line receiver hole, the right side that just will control top light supply apparatus 313a and lower scan line receiver hole 334 need keep influencing apart from d.When top optic scan module 312a is pulled by top linear guide 316 by upper drive mechanism 318, the transmitted light scope of top light supply apparatus 313b also must keep influence apart from d with the left side of lower scan line receiver hole 334, so that lower scan line receiver hole 334 can not receive the transmission veiling glare influence of top light supply apparatus 313b.
Wherein, above-mentioned all is the transmitted light influence that is subjected to top light supply apparatus 313 with bottom sweep trace receiver hole 334, this is for for the purpose of the simplified illustration, in fact, top sweep trace receiver hole 314 also can be subjected to the influence of bottom light supply apparatus 333, below promptly be subjected to bottom light supply apparatus 333 with top sweep trace receiver hole 314 transmitted light influence be example.
For reaching the purpose of avoiding the transmission veiling glare to influence scanning quality, the present invention can exemplify the part light source control method in following examples and illustrate in the process of advancing in the same way and influence how to avoid the transmission veiling glare in the process of negative line feed.
Please merge with reference to figure 5A, Fig. 7 and Fig. 8, it is the light source control method according to a kind of scanner group of a preferred embodiment of the present invention, and its middle and upper part optic scan module 312 and bottom optic scan module 332 are to advance in the same way.
At first, must calculate the influence distance (step s70) of bottom light supply apparatus 333 and top sweep trace receiver hole 314 earlier, supposing to calculate between bottom light supply apparatus 333 and the top sweep trace receiver hole 314 just can not make the transmitted light scope of bottom light supply apparatus 333 influence top sweep trace receiver hole 314 beyond influencing apart from d.When begin scanning at step s72 before, the reference position of bottom light supply apparatus 333 is the f1 at Fig. 8, and the reference position of top sweep trace receiver hole 314 is at s1, when when step s72 begins to scan, then make top optic scan module 312 advance and suspend advance (the step s74) of bottom optic scan module 332 towards first direction.
When top optic scan module 313 advances gradually, whether the actual range of judging bottom light supply apparatus 333 and top sweep trace receiver hole 314 is greater than influence distance (step s76), when bottom light supply apparatus 333 during in position f2, represent that then the top sweep trace receiver hole 314 and the actual range of bottom light supply apparatus 333 are greater than influence soon apart from d, can open the top light supply apparatus 313 of top optic scan module 312 this moment and make top optic scan module 312 advance towards beginning towards first direction (step s78).
When the actual range of bottom light supply apparatus 333 and top sweep trace receiver hole 314 is less than or equal to influence apart from d, then get back to step s74, make bottom optic scan module 332 continue to advance and continues advancing of time-out top optic scan module 312 towards first direction.
Please merge with reference to figure 6, Fig. 9 and Figure 10, it is the light source control method according to a kind of scanner group of another preferred embodiment of the present invention, wherein, top optic scan module 606 and bottom optic scan module 626 are negative line feeds, be that bottom optic scan module 626 is to advance towards first direction, top optic scan module 606 then is to advance towards second direction, and this both direction is a reverse direction.
At first, the influence of the influence distance of calculating bottom light supply apparatus 627 and top sweep trace receiver hole 608 (the first influence distance) and top light supply apparatus 607 and lower scan line receiver hole 628 is apart from (the second influence distance) (step s90) earlier, suppose that the influence distance that both calculate is d all, then the actual range of the actual range between top light supply apparatus 607 and the lower scan line receiver hole 628 and bottom light supply apparatus 627 and top sweep trace receiver hole 608 all must influence apart from d beyond, just can not make the transmitted light scope of light supply apparatus have influence on the other side's sweep trace receiver hole.
Be that example explains with the influence of 627 pairs of top of bottom light supply apparatus sweep trace receiver hole 608 distance now below.When begin scanning at step s92 before, the reference position of bottom light supply apparatus 627 ties up to the f1 of Figure 10, and the reference position of top sweep trace receiver hole 608 is at s1, when when step s92 begins to scan, then make bottom optic scan module 626 advance, and make top optic scan module 606 towards second direction advance (step s94) towards first direction.
When bottom optic scan module 626 and top optic scan module 606 advance respectively in the opposite direction gradually, whether the actual range of judging bottom light supply apparatus 627 and top sweep trace receiver hole 608 is smaller or equal to influence distance (step s96), when bottom light supply apparatus 627 in position f2 and top sweep trace receiver hole 608 during at position s2, represent that then the top sweep trace receiver hole 608 and the actual range of bottom light supply apparatus 627 are in the scope of influence apart from d, must select to close the light supply apparatus of some optic scan modules and limit this optic scan module and advance this moment, close top light supply apparatus 607 and suspend advancing of top optic scan module 606 in this selection, and bottom optic scan module 626 is continued towards first direction advance (step s98).
Get back to step s96 this moment and continue to judge that whether the actual range of bottom light supply apparatus 627 and top sweep trace receiver hole 608 is greater than influencing apart from d, when the position of bottom light supply apparatus 627 during at f3, actual range leaves influence soon apart from d between expression bottom light supply apparatus 627 and the lower scan line receiver hole 608, is can make top optic scan module 606 continue to advance towards second direction.
Please merge with reference to figure 6, Figure 11 and Figure 12, it is the light source control method according to a kind of scanner group of another preferred embodiment of the present invention, wherein, top optic scan module 606 and bottom optic scan module 626 are negative line feeds, be that bottom optic scan module 626 is to advance towards first direction, top optic scan module 606 then is to advance towards second direction, and this both direction is a reverse direction.
At first, the influence of the influence distance of calculating bottom light supply apparatus 627 and top sweep trace receiver hole 608 (the first influence distance) and top light supply apparatus 607 and lower scan line receiver hole 628 is apart from (the second influence distance) (step s110) earlier, suppose that the influence distance that both calculate is d all, then the actual range between actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 and top light supply apparatus 607 and the lower scan line receiver hole 628 all must influence apart from d beyond, just can not make the transmitted light scope of light supply apparatus have influence on the other side's sweep trace receiver hole.
Be that example explains with the influence of 627 pairs of top of bottom light supply apparatus sweep trace receiver hole 608 distance now below.When begin scanning at step s112 before, the reference position of bottom light supply apparatus 627 is at the f1 of Figure 12, and the reference position of top sweep trace receiver hole 608 is at s1, when when step s112 begins to scan, then make bottom optic scan module 626 advance, and make top optic scan module 606 towards second direction advance (step s114) towards first direction.
When bottom optic scan module 626 and top optic scan module 606 oppositely advance mutually, judge that actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 is whether smaller or equal to influence distance (step s116), when bottom light supply apparatus 627 in position f2 and top sweep trace receiver hole 608 during at position s2, the actual range of then representing top sweep trace receiver hole 608 and bottom light supply apparatus 627 is in the scope of influence apart from d, must select to close the light supply apparatus of some optic scan modules and make this optic scan module retreat to advance this moment, close top light supply apparatus 607 and make top optic scan module 606 advance in this selection to first direction, even retreating, top optic scan module 606 advances, bottom optic scan module 626 then continuation advances (step s118) towards first direction, and the pace of its middle and lower part optic scan module 626 is greater than the astern speed of top optic scan module 606.
Get back to step s116 this moment and continue to judge that whether actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 is greater than influencing apart from d, when the position of bottom light supply apparatus 627 at f3, and the position of top optic scan module 606 is when s3, actual range between expression bottom light supply apparatus 627 and the top sweep trace receiver hole 608 leaves influence soon apart from d, is can make top optic scan module 606 open its light supply apparatuses 607 and continuation towards second direction advance (step s120).
Please merge with reference to figure 6, Figure 13 and Figure 14, it is the light source control method according to a kind of scanner group of another preferred embodiment of the present invention, wherein, top optic scan module 606 and bottom optic scan module 626 are negative line feeds, be that bottom optic scan module 626 is to advance towards first direction, top optic scan module 606 then is to advance towards second direction, and this both direction is a reverse direction.
At first, must calculate earlier the influence distance (second influence apart from) (step s130) of influence distance (the first influence distance) between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 and top light supply apparatus 607 and lower scan line receiver hole 628, suppose that the influence distance that both calculate is d all, then the actual range of the actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 and top light supply apparatus 607 and lower scan line receiver hole 628 all must influence apart from d beyond, just can not make the transmitted light scope of light supply apparatus have influence on sweep trace receiver hole to putting.
Be that example explains with the influence of 627 pairs of top of bottom light supply apparatus sweep trace receiver hole 608 distance now below.When begin scanning at step s132 before, the reference position of bottom light supply apparatus 627 is at the f1 of Figure 14, and the reference position of top sweep trace receiver hole 608 is at s1, when when step s112 begins to scan, then make bottom optic scan module 626 advance, and make top optic scan module 606 towards second direction advance (step s134) towards first direction.
When bottom optic scan module 626 and top optic scan module 606 advance separately in the opposite direction gradually, judge that actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 is whether smaller or equal to influence distance (step s136), if actual range greater than influence apart from the time, then make bottom optic scan module 626 and top optic scan module 606 continue to scan (step S142) towards first and second direction respectively.
When bottom light supply apparatus 627 in position f2 and top sweep trace receiver hole 608 during at position s2, the actual range of then representing top sweep trace receiver hole 608 and bottom light supply apparatus 627 is in the scope of influence apart from d, must select to close the light supply apparatus of some optic scan modules and make this optic scan module retreat to advance this moment, close top light supply apparatus 607 and make top optic scan module 606 advance in this selection to first direction, even retreating, top optic scan module 606 advances, bottom optic scan module 626 then continuation advances (step s138) towards first direction, controls the pace of the astern speed of top optic scan module 606 greater than bottom optic scan module 626 this moment.
Be with over time, bottom light supply apparatus 627 is when the f3 of position, and the position that top sweep trace receiver hole 608 has retreated to s3, this moment is because the influence that top sweep trace receiver hole 608 has left bottom light supply apparatus 627 apart from d, is can continue to advance toward original second direction with top optic scan module 606.When bottom optic scan module 626 is advanced toward first and second direction respectively with top optic scan module 606, because bottom light supply apparatus 627 and top sweep trace receiver hole 608 arrive the position of f4 and s4 respectively, and the distance between f4 and the s4 is in influencing distance range d, be promptly to close bottom light supply apparatus 627 this moment and to make bottom optic scan module 626 advance to second direction, even bottom optic scan module 626 retreats advance, top optic scan module 606 then continuation towards second direction advance (step s138).
When bottom optic scan module 626 and top optic scan module 606 are all advanced towards second direction, and the position of bottom light supply apparatus 627 and top sweep trace receiver hole 608 is respectively when f5 and s5, then controlling bottom optic scan module 626 advances to first direction again, though the actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 is in influencing apart from d at this moment, but because the scans content of this segment distance of s5 to s2, top sweep trace receiver hole 608 and lower scan line receiver hole 628 had received, be with when the follow-up image processing, can abandon afterwards in the scans content that this segment distance received, and adopt the scans content that has originally received.That is to say, when the actual range between the actual range between bottom light supply apparatus 627 and the top sweep trace receiver hole 608 or top light supply apparatus 607 and the lower scan line receiver hole 628 all tie up to influence apart from d in but will continue to scan the time, must control the influence distance and tie up in separately the repetition walking path.
When controlling influence distance and tie up in separately the repetition walking path, then can open bottom light supply apparatus 627 and top light supply apparatus 607 once more, and make bottom optic scan module 626 and top optic scan module 606 respectively towards first direction and second direction continue to advance (step S140).
Wherein, controlling the direct of travel of above-mentioned top and bottom optical scanner and the mode of gait of march, is to control with step motor, reducing gear and gear train in the mode accessory drive of software, hardware or firmware.
In sum, advantage of the present invention is for the while and carry out the duplex scanning action automatically, and does not need artificial turn-over or utilize long file guide rails.And utilize high-resolution non-contact image capture device that two-sided object to be scanned is carried out image capture, to reduce by wait sweep time of one times.
Claims (22)
1. the scanner group with double-sided scanning function can scan a two-sided object to be scanned simultaneously, it is characterized in that, this scanner group with double-sided scanning function comprises:
One bottom scanner, it scans first of this two-sided object to be scanned, and this lower scan instrument comprises:
One first shell;
One first glass platform is disposed in this first shell, and it places this two-sided object to be scanned;
One first optic scan module is positioned at this first glass platform below, comprises one the
One light supply apparatus and one first sweep trace receiver hole;
One first drive unit; And
One first linear guide mechanism connects this first optic scan module and this first drive unit;
One top scanner, it scans second of this two-sided object to be scanned, and this top scanner comprises:
One second shell;
One second glass platform, be disposed in this second shell and with this first glass platform symmetry parallel to each other;
One second optic scan module is positioned at this second glass platform top, comprises one the
Two light supply apparatuses and one second sweep trace receiver hole;
One second drive unit; And
One second linear guide mechanism connects this second optic scan module and this second drive unit; And
One is connected mechanism, and this lower scan instrument that is coupling is in this top scanner.
2. the scanner group with double-sided scanning function as claimed in claim 1 is characterized in that, be coupling the same side of this first shell and this second shell of this linking mechanism is so that the opposite side of this top scanner and this lower scan instrument presents a fan-shaped opening.
3. the scanner group with double-sided scanning function as claimed in claim 1 is characterized in that, this linking mechanism comprises:
One first is connected rod, is connected first side of this first shell and this second shell; And
One second is connected rod, is connected second side of this first shell and this second shell;
Wherein this top scanner can prolong this first linking rod and the excellent parallel rising of this second linking.
4. the scanner group with double-sided scanning function as claimed in claim 1 is characterized in that, this first optic scan module is identical with the scanning direct of travel of this second optic scan module.
5. the scanner group with double-sided scanning function as claimed in claim 1 is characterized in that, this first optic scan module is opposite with the scanning direct of travel of this second optic scan module.
6. the scanner group with double-sided scanning function can scan a two-sided object to be scanned simultaneously, it is characterized in that, this scanner group with double-sided scanning function comprises:
One first scanner, it scans first of this two-sided object to be scanned;
One second scanner, it scans second of this two-sided object to be scanned; And
One is connected mechanism, and this first scanner that is coupling is in this second scanner.
7. the light source control method of a scanner group, wherein this scanner group is applicable to and scans a two-sided file to be scanned simultaneously, comprise one first optic scan module and one second optic scan module, wherein this first optic scan module comprises one first light supply apparatus and one first sweep trace receiver hole, this second optic scan module comprises a secondary light source device and one second sweep trace receiver hole, it is characterized in that the light source control method of this scanner group comprises:
Calculate one of this first light supply apparatus and this second sweep trace receiver hole and influence distance;
When beginning to scan, make this first optic scan module advance and suspend this second optic scan module and operate towards a first direction;
Whether an actual range of judging this first light supply apparatus and this second sweep trace receiver hole influences distance greater than this; And
When this actual range of this first light supply apparatus and this second sweep trace receiver hole greater than this influence apart from the time, make this second optic scan module advance towards this first direction.
8. as the light source control method of claim 7 a described scanner group, it is characterized in that, more comprise: when this actual range of this first light supply apparatus and this second sweep trace receiver hole smaller or equal to this influence apart from the time, make this first optic scan module continue to advance and continues this second optic scan module of time-out and advance towards this first direction.
9. as the light source control method of claim 7 a described scanner group, it is characterized in that this first optic scan module scans first of this two-sided file to be scanned.
10. as the light source control method of claim 9 a described scanner group, it is characterized in that this second optic scan module scans second of this two-sided file to be scanned.
11. the light source control method of a scanner group, wherein this scanner group system is applicable to and scans a two-sided file to be scanned simultaneously, comprise one first optic scan module and one second optic scan module, wherein this first optic scan module comprises one first light supply apparatus and one first sweep trace receiver hole, this second optic scan module comprises a secondary light source device and one second sweep trace receiver hole, it is characterized in that the light source control method of this scanner group comprises:
Calculate one second of one first influence distance of this first light supply apparatus and this second sweep trace receiver hole and this secondary light source device and this first sweep trace receiver hole and influence distance;
When beginning to scan, make this first optic scan module before a first direction so that this second optic scan module advance towards a second direction, wherein this first direction and this second direction are reverse direction;
When one first actual range of this first light supply apparatus and this second sweep trace receiver hole first influences distance smaller or equal to this, and one second actual range of this secondary light source device and this first sweep trace receiver hole second influences distance smaller or equal to this, during either-or, close this secondary light source device and suspend this second optic scan module and advance, and make this first optic scan module continue scanning; And
When this first actual range of this first light supply apparatus and this second sweep trace receiver hole greater than this second actual range of this first influence distance and this secondary light source device and this first sweep trace receiver hole greater than this second influence apart from the time, make this second optic scan module continuation advance towards this second direction.
12. the light source control method as claim 11 a described scanner group is characterized in that, this first optic scan module scans first of this two-sided file to be scanned.
13. the light source control method as claim 11 a described scanner group is characterized in that, this second optic scan module scans second of this two-sided file to be scanned.
14. the light source control method of a scanner group, wherein this scanner group is applicable to and scans a two-sided file to be scanned simultaneously, comprise one first optic scan module and one second optic scan module, wherein this first optic scan module comprises one first light supply apparatus and one first sweep trace receiver hole, this second scanner comprises one second optic scan module, this second optic scan module comprises a secondary light source device and one second sweep trace receiver hole, it is characterized in that the light source control method of this scanner group comprises:
Calculate one second of one first influence distance of this first light supply apparatus and this second sweep trace receiver hole and this secondary light source device and this first sweep trace receiver hole and influence distance;
When beginning to scan, make this first optic scan module before a first direction so that this second optic scan module advance towards a second direction, wherein this first direction and this second direction are reverse direction;
When one first actual range of this first light supply apparatus and this second sweep trace receiver hole first influences distance smaller or equal to this, and one second actual range of this secondary light source device and this first sweep trace receiver hole second influences distance smaller or equal to this, during either-or, close this secondary light source device and make this second optic scan module advance, and make this first optic scan module continue scanning towards this first direction; And
When this first actual range of this first light supply apparatus and this second sweep trace receiver hole greater than this second actual range of this first influence distance and this secondary light source device and this first sweep trace receiver hole greater than this second influence apart from the time, make this second optic scan module continuation advance towards this second direction.
15. the light source control method as claim 14 a described scanner group is characterized in that, this first optic scan module towards the progressive speed of this second party less than this second optic scan module towards the progressive speed of this second party.
16. the light source control method as claim 14 a described scanner group is characterized in that, this first optic scan module scans first of this two-sided file to be scanned.
17. the light source control method as claim 14 a described scanner group is characterized in that, this second optic scan module scans second of this two-sided file to be scanned.
18. the light source control method of a scanner group, wherein this scanner group system is applicable to and scans a two-sided file to be scanned simultaneously, comprise one first optic scan module and one second optic scan module, wherein this first optic scan module comprises one first light supply apparatus and one first sweep trace receiver hole, this second scanner comprises one second optic scan module, this second optic scan module comprises a secondary light source device and one second sweep trace receiver hole, it is characterized in that the light source control method of this scanner group comprises:
A. calculate one second of one first influence distance of this first light supply apparatus and this second sweep trace receiver hole and this secondary light source device and this first sweep trace receiver hole and influence distance;
B. when beginning to scan, make this first optic scan module before a first direction so that this second optic scan module advance towards a second direction, wherein this first direction and this second direction are reverse direction;
C. first influence distance smaller or equal to this when one first actual range of this first light supply apparatus and this second sweep trace receiver hole, and one second actual range of this secondary light source device and this first sweep trace receiver hole second influences distance smaller or equal to this, during either-or, successively close this secondary light source device and this first light supply apparatus, wherein when closing this first light supply apparatus, can make this first optic scan module advance, and when closing this secondary light source device, can make this second optic scan module advance towards this first direction towards this second direction; And
D. open this first and this secondary light source device and make this first optic scan module advance towards this first direction, and make this second optic scan module advance towards this second direction.
19. the light source control method as claim 18 a described scanner group is characterized in that, this first optic scan module towards the progressive speed of this second party greater than this second optic scan module towards the progressive speed of this second party.
20. the light source control method as 8 described scanner groups of claim 1 is characterized in that, this second optic scan module towards the progressive speed of this first party greater than this first optic scan module towards the progressive speed of this first party.
21. the light source control method as claim 18 a described scanner group is characterized in that, this first optic scan module scans first of this two-sided file to be scanned.
22. the light source control method as claim 18 a described scanner group is characterized in that, this second optic scan module scans second of this two-sided file to be scanned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021262292A CN1469299A (en) | 2002-07-16 | 2002-07-16 | Scanner combination with double-sided scanning function and its light source controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021262292A CN1469299A (en) | 2002-07-16 | 2002-07-16 | Scanner combination with double-sided scanning function and its light source controlling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1469299A true CN1469299A (en) | 2004-01-21 |
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ID=34143267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021262292A Withdrawn CN1469299A (en) | 2002-07-16 | 2002-07-16 | Scanner combination with double-sided scanning function and its light source controlling method |
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| Country | Link |
|---|---|
| CN (1) | CN1469299A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418344C (en) * | 2004-05-21 | 2008-09-10 | 虹光精密工业（苏州）有限公司 | Image pickup device having double-face scanning function and method for using the same |
| CN102694953A (en) * | 2012-05-17 | 2012-09-26 | 广州市中崎商业机器有限公司 | Double-sided scanning method and device for implementing same |
| CN102843487A (en) * | 2007-03-14 | 2012-12-26 | 株式会社Pfu | Scanning device, apparatus and method for image processing |
| CN103873733B (en) * | 2007-08-29 | 2017-04-12 | 科学游戏控股有限公司 | Enhanced Scanner Design |
-
2002
- 2002-07-16 CN CNA021262292A patent/CN1469299A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418344C (en) * | 2004-05-21 | 2008-09-10 | 虹光精密工业（苏州）有限公司 | Image pickup device having double-face scanning function and method for using the same |
| CN102843487A (en) * | 2007-03-14 | 2012-12-26 | 株式会社Pfu | Scanning device, apparatus and method for image processing |
| CN101267484B (en) * | 2007-03-14 | 2013-01-16 | 株式会社Pfu | Scanning device, apparatus and method for image processing |
| US8531737B2 (en) | 2007-03-14 | 2013-09-10 | Pfu Limited | Scanning device, apparatus and method for image processing |
| US8941890B2 (en) | 2007-03-14 | 2015-01-27 | Pfu Limited | Scanning device, apparatus and method for image processing |
| US8947748B2 (en) | 2007-03-14 | 2015-02-03 | Pfu Limited | Scanning device, apparatus and method for image processing |
| CN102843487B (en) * | 2007-03-14 | 2015-09-09 | 株式会社Pfu | Scanning device, image processing apparatus and image processing method |
| CN103873733B (en) * | 2007-08-29 | 2017-04-12 | 科学游戏控股有限公司 | Enhanced Scanner Design |
| CN102694953A (en) * | 2012-05-17 | 2012-09-26 | 广州市中崎商业机器有限公司 | Double-sided scanning method and device for implementing same |
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