CN101907950A - Control method applied to sensing system - Google Patents

Control method applied to sensing system Download PDF

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CN101907950A
CN101907950A CN2009101464411A CN200910146441A CN101907950A CN 101907950 A CN101907950 A CN 101907950A CN 2009101464411 A CN2009101464411 A CN 2009101464411A CN 200910146441 A CN200910146441 A CN 200910146441A CN 101907950 A CN101907950 A CN 101907950A
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subimage
image
sensing system
control method
total image
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CN101907950B (en
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林卓毅
吕志宏
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Pixart Imaging Inc
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Pixart Imaging Inc
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Abstract

The invention relates to a control method applied to a sensing system. The control method comprises a step of determining whether to start a specific function according to the size of a captured total image. In an embodiment of the invention, the step of determining whether to start the specific function according to the size of the captured total image is to determine whether to start the specific function according to the size of the captured total image and duration for continuously capturing the total image. Therefore, a user can more conveniently use the sensing system with the control method.

Description

Be applied to the control method of sensing system
Technical field
The present invention relates to a kind of control method, particularly relate to a kind of control method that is applied to sensing system.
Background technology
Existing known sensing system comprises a panel (panel), two image sensor (image sensor) and a processor (processor).One zone (area) of each image sensor sensing panel is capturing an image (image), and processor carries out follow-up processing to calculate the position of an indicant (pointer) at above-mentioned zone.Above-mentioned technology has been exposed in many relevant patents, and for example U.S. Patent number the 4th, 782, and No. 328, the 6th, 803, the 906 and the 6th, 954, No. 197 patent.
Yet the function of the disclosed sensing system of these relevant patents still can't satisfy deviser's related needs, so existing known sensing system still has improved space.
This shows, above-mentioned existing application in the control method of sensing system method with use, obviously still have inconvenience and defective, and demand urgently further being improved.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and conventional method does not have appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new control method that is applied to sensing system, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective of existing application in the control method existence of sensing system, and a kind of new control method that is applied to sensing system is provided, technical matters to be solved is to make its size (size) according to the total image that is captured (total pattern) determine whether starting specific function (specific function), make that use of the present invention is more convenient, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The present invention proposes a kind of control method that is applied to a sensing system, and it comprises: the size according to the one first total image that is captured determines whether starting a specific function.
In one embodiment of this invention, above-mentioned size according to the first total image that the is captured step (step) that determines whether starting specific function is: according to the size of the first total image that is captured and continue the length (length) of the time (time) of acquisition first total image and determine whether starting specific function.
In one embodiment of this invention, sensing system has a panel, one first image sensor and one second image sensor.First image sensor and second image sensor are disposed at panel.The sensing range of the sensing range of first image sensor and second image sensor is contained a zone of panel respectively.Above-mentioned size and the lasting length that captures the time of first total image according to the first total image that is captured determines whether that the step that starts specific function comprises following substep (sub-step).At first, carry out substep a), first image sensor and second image sensor while sensing region are to obtain one first image and one second image respectively.First image comprises one first subimage (sub-pattern), and second image comprises one second subimage, and first subimage and second subimage formation, first total image.Then, carry out substep b), whether the size of judging first total image is more than or equal to one first predetermined value (predetermined value).Then, carry out substep c), if the size of first total image is more than or equal to first predetermined value, then and then judge and whether continue to capture the time of first total image more than or equal to one second predetermined value.Then, carry out substep d), if the time that continues acquisition first total image more than or equal to second predetermined value, then start specific function.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep c1), if the size of first total image is then calculated and is exported one first coordinate of first subimage and pairing instantly one first object of second subimage and get back to substep a) less than first predetermined value.
In one embodiment of this invention, above-mentioned substep d) more comprise one first coordinate that calculates and export first subimage and pairing instantly one first object of second subimage.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep d1), if the time that continues acquisition first total image less than second predetermined value, then calculate and export one first coordinate of first subimage and pairing instantly one first object of second subimage and get back to substep a).
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system is being carried out substep d) afterwards, more comprise following substep.Carry out substep e), first image sensor and second image sensor while sensing region are to obtain one the 3rd image and one the 4th image respectively.The 3rd image comprises one the 3rd subimage, and the 4th image comprises one the 4th subimage, and the 3rd subimage and the 4th subimage constitute one second total image.Then, carry out substep f), whether the size of judging second total image is less than first predetermined value.Then, carry out substep g), if the size of second total image is less than first predetermined value, then and then judge and whether continue to capture the time of second total image more than or equal to second predetermined value.Then, carry out substep h), if the time that continues acquisition second total image more than or equal to second predetermined value, then close specific function.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep g1), if the size of second total image more than or equal to first predetermined value, then continues to start specific function and get back to substep e).In addition, above-mentioned substep g1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, above-mentioned substep h) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep h1), if the time that continues acquisition second total image less than second predetermined value, then continue the startup specific function and get back to substep e).In addition, above-mentioned substep h1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, above-mentioned first image sensor has first sensor pixel (sensing pixel) in this zone of a plurality of sensings, and second image sensor has second sensor pixel in this zone of a plurality of sensings.The size of second total image is the quantity of first sensor pixel of these correspondences of acquisition the 3rd subimage and the summation of the quantity of these second corresponding sensor pixels of acquisition the 4th subimage.
In one embodiment of this invention, above-mentioned first image sensor has first sensor pixel in this zone of a plurality of sensings, and second image sensor has second sensor pixel in this zone of a plurality of sensings.The size of first total image is the quantity of first sensor pixel of these correspondences of acquisition first subimage and the summation of the quantity of these second corresponding sensor pixels of acquisition second subimage.
In one embodiment of this invention, above-mentioned sensing system has a panel, an image sensor and a direct reflection element (reflective mirror element).Image sensor is disposed at panel.The direct reflection arrangements of components in panel and a first area of shining upon panel to form a second area.The sensing range of image sensor is contained first area and second area.Above-mentioned size and the lasting length that captures the time of first total image according to the first total image that is captured determines whether that the step that starts specific function comprises following substep.At first carry out substep a), image sensor sensing first area and second area are to obtain one first image.First image comprises one first subimage and one second subimage, and first subimage and second subimage formation, first total image.Then, carry out substep b), whether the size of judging first total image is more than or equal to one first predetermined value.Then, carry out substep c), if the size of first total image is more than or equal to first predetermined value, then and then judge and whether continue to capture the time of first total image more than or equal to one second predetermined value.Then, carry out substep d) if the time that continues acquisition first total image more than or equal to second predetermined value, then start specific function.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep c1), if the size of first total image is then calculated and is exported one first coordinate of first subimage and pairing instantly one first object of second subimage and get back to substep a) less than first predetermined value.
In one embodiment of this invention, above-mentioned substep d) more comprise one first coordinate that calculates and export first subimage and pairing instantly one first object of second subimage.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep d1), if the time that continues acquisition first total image less than second predetermined value, then calculate and export one first coordinate of first subimage and pairing instantly one first object of second subimage and get back to substep a).
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system is being carried out substep d) afterwards, more comprise following substep.Carry out substep e), image sensor sensing first area and second area are to obtain one second image.Second image comprises one the 3rd subimage and one the 4th subimage, and the 3rd subimage and the 4th subimage constitute one second total image.Then, carry out substep f), whether the size of judging second total image is less than first predetermined value.Then, carry out substep g), if the size of second total image is less than first predetermined value, then and then judge and whether continue to capture the time of second total image more than or equal to second predetermined value.Then, carry out substep h), if the time that continues acquisition second total image more than or equal to second predetermined value, then close specific function.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep g1), if the size of second total image more than or equal to first predetermined value, then continues to start specific function and get back to substep e).In addition, above-mentioned substep g1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, above-mentioned substep h) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, the above-mentioned control method that is applied to sensing system more comprises following substep.Carry out substep h1), if the time that continues acquisition second total image less than second predetermined value, then continue the startup specific function and get back to substep e).In addition, above-mentioned substep h1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
In one embodiment of this invention, above-mentioned image sensor has the sensor pixel of a plurality of sensings first area and second area.The size of second total image is the quantity of these corresponding sensor pixels of acquisition the 3rd subimage and the summation of the quantity of these corresponding sensor pixels of acquisition the 4th subimage.
In one embodiment of this invention, above-mentioned image sensor has the sensor pixel of a plurality of sensings first area and second area.The size of first total image is the quantity of these corresponding sensor pixels of acquisition first subimage and the summation of the quantity of these corresponding sensor pixels of acquisition second subimage.
In one embodiment of this invention, above-mentioned specific function is a removing function (erasing function).
By technique scheme, the control method that the present invention is applied to sensing system has following advantage and beneficial effect at least: owing to be applied in the control method of sensing system at embodiments of the invention, size according to the first total image that is captured determines whether starting specific function, so the user uses the sensing system with above-mentioned control method of embodiments of the invention with more convenient.In addition, in the control method that is applied to sensing system of embodiments of the invention, above-mentioned steps can be: size and the lasting length that captures the time of first total image according to the first total image that is captured determine whether starting specific function, so sensing system can be improved because of the situation that erroneous judgement starts specific function.
In sum, the present invention has obvious improvement technically, has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram of a kind of sensing system of first embodiment of the invention.
Fig. 2 is the process flow diagram of control method of the sensing system that is applied to Fig. 1 of first embodiment of the invention.
Fig. 3 is the detail flowchart of the control method of Fig. 2.
Fig. 4 is first image sensor and first image that second image sensor is sensed and the synoptic diagram of second image of the sensing system of Fig. 1.
Fig. 5 is first image sensor and the 3rd image that second image sensor is sensed and the synoptic diagram of the 4th image of the sensing system of Fig. 1.
Fig. 6 is the synoptic diagram of a kind of sensing system of second embodiment of the invention.
Fig. 7 is the process flow diagram of control method of the sensing system that is applied to Fig. 6 of second embodiment of the invention.
Fig. 8 is the detail flowchart of the control method of Fig. 7.
Fig. 9 is the synoptic diagram of first image that image sensor sensed of the sensing system of Fig. 6.
Figure 10 is the synoptic diagram of second image that image sensor sensed of the sensing system of Fig. 6.
20,30: object 30 ': mirror image
200,300: sensing system 210,310: panel
212,312,312 ': the zone
214: the surface
220,230,320: image sensor
222,224,232,234,322,324: image
222a, 224a, 232a, 234a, 322a, 322b, 324a, 324b: subimage
240,340: processor 330: the direct reflection element
332: mirror reflection surface
P1, P2, P3, P4: total image
A), h1 h g1 g f e d1 d c1 c b))))))))))): substep
C2), g3 g2 c3))): subprocess (sub-process)
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of the control method that is applied to sensing system, method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
First embodiment
Fig. 1 is the synoptic diagram of a kind of sensing system of first embodiment of the invention.Please refer to shown in Figure 1ly, the sensing system 200 of present embodiment has a panel 210, one first image sensor 220, one second image sensor 230 and a processor 240.Panel 210 has 214 and one zone 212, a surface, and zone 212 is positioned at surface 214.Zone 212 for example is a quadrilateral.First image sensor 220 and second image sensor 230 are disposed on the surface 214 of panel 210 and are electrically connected to processor 240, and the sensing range of the sensing range of first image sensor 220 and second image sensor 230 is contained above-mentioned zone 212 respectively.The panel 210 of present embodiment for example is a blank (whiteboard) or a touch-screen (touch screen).
But when the user with the object 20 of a sensing system 200 sensings near regional 212 the time, first image sensor 220 and second image sensor 230 be sensing region 212 and processor 240 position of calculating object 20 according to the image of first image sensor 220 and 230 sensings of second image sensor respectively.Above-mentioned relevant technology contents can be with reference to U.S. Patent number the 4th, 782, and No. 328 and the 6th, 803, No. 906 content is so repeat no more in this.In addition, when object 20 in the zone on 212 when mobile, the motion track of object 20 for example can be presented on the panel 210 of touch-screen or be electrically connected in addition on the display (display) (not illustrating) of panel 210.
Fig. 2 is the process flow diagram of control method of the sensing system that is applied to Fig. 1 of first embodiment of the invention.Fig. 3 is the detail flowchart of the control method of Fig. 2.Fig. 4 is first image sensor and first image that second image sensor is sensed and the synoptic diagram of second image of the sensing system of Fig. 1.Please refer to Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, comprehensive speech, the control method that is applied to sensing system of present embodiment comprises that the size according to the one first total image P1 that is captured determines whether starting specific function.In the present embodiment, above-mentioned steps is: size and the lasting length that captures the time of first total image P1 according to the one first total image P1 that is captured determine whether starting specific function.Below will further describe.
At first, carry out substep a), first image sensor 220 and second image sensor, 230 while sensing region 212 are to obtain one first image 222 and one second image 232 respectively.First image 222 comprises one first subimage 222a, and second image 232 comprises one second subimage 232a, and the first subimage 222a and second subimage 232a formation, first total image P1.
In the present embodiment, first image sensor 220 has first sensor pixel (not illustrating) in this zone 212 of a plurality of sensings, and second image sensor 230 has second sensor pixel (not illustrating) in this zone 212 of a plurality of sensings.When one first object (not illustrating) is close to the zone 212 of panel 210, these second sensor pixels of these first sensor pixels of first image sensor 220 and second image sensor 230 are sensing region 212 simultaneously, these first sensor pixels of first image sensor 220 capture first image 222, and these second sensor pixels of second image sensor 230 capture second image 232.At this moment, capture the first subimage 222a, and capture the second subimage 232a to these second sensor pixel sensing, first objects of small part to these first sensor pixel sensing, first objects of small part.In other words, in this at that time, the zone 212 of the contiguous panel 210 of first object and captured into the first subimage 222a in first image 222 by 230 sensings of first image sensor 220 and second image sensor and the second subimage 232a in second image 232.
First object can be a stylus, a finger, a blackboard eraser or a palm.If first object is stylus or finger, then first total image P1's is big or small less.The size of first total image P1 for example is the quantity of first sensor pixel of these correspondences of the acquisition first subimage 222a and the summation of the quantity of these second corresponding sensor pixels that capture the second subimage 232a.In addition, if first object is blackboard eraser or palm, then the size of first total image P1 is bigger.In this mandatory declaration is that first subimage 222a shown in Figure 4 and pairing first object of the second subimage 232a for example are blackboard eraser.
What be worth emphasizing is, when a plurality of first objects are close to the zone 212 of panels 210, for example two the finger touch panels 210 zone 212 time, first image 222 can comprise a plurality of first subimage 222a, and second image 232 can comprise a plurality of second subimage 232a.At this moment, these first subimage 222a and these second subimages 232a constitute first total image P1, and the size of first total image P1 is the quantity of first sensor pixel of these correspondences of these first subimages of acquisition 222a and the summation of the quantity of these second corresponding sensor pixels of these second subimages of acquisition 232a.
Then, carry out substep b), processor 240 judges that whether the size of first total image P1 is more than or equal to one first predetermined value.In the present embodiment, first predetermined value can be a specific number of pixels, its for example between the summation of the quantity of these second sensor pixels of the quantity of these first sensor pixels of first image sensor 220 and second image sensor 230 1/2nd to 2/3rds between.
Then, carry out substep c), if the size of first total image P1 is more than or equal to first predetermined value, then and then judge and whether continue to capture the time of first total image P1 more than or equal to one second predetermined value (for example 1.5 seconds).Be substep c shown in Figure 2 in this mandatory declaration) can finish by the mode of counting shown in Figure 3.For example, first image sensor 220 and second image sensor 230 are designed to the sensing region 212 of interval (for example being 1/240 second) meeting at set intervals once.When the each sensing region 212 of first image sensor 220 and second image sensor 230, processor 240 judges that all whether the size of first total image P1 is more than or equal to first predetermined value at every turn.If every judgement is once for being, then count value (counting value) increase by 1 and processor 240 so judge that whether count value is more than or equal to one the 3rd predetermined value (as the subprocess c2 of Fig. 3) and c3)).In the present embodiment, second predetermined value for example is 1.5 seconds) calculate (for example 1.5 divided by 1/240) through the deviser and be converted to the 3rd predetermined value (for example 360 times).
Then, carry out substep d), if the time that continues acquisition first total image P1 is more than or equal to second predetermined value (that is count value is more than or equal to the 3rd predetermined value), then processor 240 startup specific functions and calculating and export the first subimage 222a and one first coordinate of pairing instantly first object of the second subimage 232a.In the present embodiment, in this at that time, first object for example is considered as a cleanout tool for blackboard eraser or the sensed system 200 of palm, and specific function for example is the panel 210 of touch-screen or the other shown motion track of display for removing, that is specific function can be one and removes function.
In addition, carrying out substep b) afterwards, the control method that is applied to sensing system more comprises carries out substep c1), if the size of first total image P1 is less than first predetermined value, then processor 240 calculates and exports first coordinate of the first subimage 222a and pairing instantly first object of the second subimage 232a and get back to substep a).In the present embodiment, in this at that time, first object for example was considered as an indicant for stylus or the sensed system 200 of finger.
In addition, carrying out substep c) afterwards, the control method that is applied to sensing system more comprises carries out substep d1), if then processor 240 calculated and exported first coordinate of the first subimage 222a and pairing instantly first object of the second subimage 232a and get back to substep a) less than second predetermined value (that is count value is less than the 3rd predetermined value) time that continues acquisition first total image P1.In the present embodiment, in this at that time, first object for example for blackboard eraser or palm but because of the time that is continued acquisition the sensed system 200 that falls short of be considered as indicant.For example, in this at that time, the user may be by mistake moves blackboard eraser or palm with blackboard eraser or palm adjacent domain 212 and at once and left zone 212, and sensing system 200 can be avoided erroneous judgement and start above-mentioned specific function.
This mandatory declaration be, above-mentioned substep a), b), b1), c), d) and d1) constituted for the first control stage.In the first control stage, but each thing of first image sensor 220 and 230 sensings of second image sensor all is called first object.In other words, in the first control stage, but first object is the common appellation of each thing of first image sensor 220 and 230 sensings of second image sensor.
Because in the control method that is applied to sensing system of present embodiment, determine whether starting specific function according to the size of the first total image P1 that is captured, so user's use has the sensing system 200 of above-mentioned control method with more convenient.In addition, in the control method that is applied to sensing system of present embodiment, above-mentioned steps can be: size and the lasting length that captures the time of first total image P1 according to the first total image P1 that is captured determine whether starting specific function, so sensing system can be improved because of the situation that erroneous judgement starts specific function.
Fig. 5 illustrates first image sensor and the 3rd image that second image sensor is sensed and the synoptic diagram of the 4th image of the sensing system of Fig. 1.The control method that is applied to sensing system of present embodiment is being carried out substep d) more comprise following substep afterwards.Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, then, carry out substep e), first image sensor 220 and second image sensor, 230 while sensing region 212 are to obtain one the 3rd image 224 and one the 4th image 234 respectively.The 3rd image 224 comprises one the 3rd subimage 224a, and the 4th image 234 comprises one the 4th subimage 234a, and the 3rd subimage 224a and the 4th subimage 234a constitute one second total image P2.In this mandatory declaration is that the 3rd subimage 224a and the 4th subimage 234a are pairing instantly to be one second object of adjacent domain 212.In other words, in this at that time, the zone 212 of the contiguous panel 210 of second object and captured into the 3rd subimage 224a in the 3rd image 224 by 230 sensings of first image sensor 220 and second image sensor and the 4th subimage 234a in the 4th image 234.
Second object can be above-mentioned stylus, finger, blackboard eraser or palm.In this mandatory declaration is that the 3rd subimage 224a shown in Figure 5 and pairing second object of the 4th subimage 234a for example are stylus.
Then, carry out substep f), whether the size of judging second total image P2 is less than first predetermined value.The size of second total image P2 for example is the quantity of first sensor pixel of these correspondences of acquisition the 3rd subimage 224a and the summation of the quantity of these second corresponding sensor pixels that capture the 4th subimage 234a.
Then, carry out substep g), if the size of second total image P2 is less than first predetermined value, then and then judge and whether continue to capture the time of second total image P2 more than or equal to second predetermined value.Be substep g shown in Figure 2 in this mandatory declaration) can finish by the mode of counting shown in Figure 3.For example, when the each sensing region 212 of first image sensor 220 and second image sensor 230, processor 240 judges that all whether the size of second total image P2 is less than first predetermined value at every turn.Every judgement is once for being, then count value increase by 1 and processor 240 so judge that whether count value is more than or equal to the 3rd predetermined value (as the subprocess g2 of Fig. 3) and g 3) shown in).
Then, carry out substep h), if the time that continues acquisition second total image P2 is more than or equal to second predetermined value (that is count value is more than or equal to the 3rd predetermined value), then processor 240 cuts out specific function and calculating and exports the 3rd subimage 224a and one second coordinate of pairing instantly second object of the 4th subimage 234a.In the present embodiment, in this at that time, second object for example was considered as indicant for stylus or the sensed system 200 of finger.
In addition, carrying out substep f) afterwards, the above-mentioned control method that is applied to sensing system more comprises carries out substep g1), if the size of second total image P2 is more than or equal to first predetermined value, then processor 240 continues to start specific function, calculating and export the 3rd subimage 224a and second coordinate of pairing instantly second object of the 4th subimage 234a, and gets back to substep e).In the present embodiment, in this at that time, second object for example was considered as cleanout tool for blackboard eraser or the sensed system 200 of palm.
In addition, carrying out substep g) afterwards, the control method that is applied to sensing system more comprises carries out substep h1), if the time that continues acquisition second total image P2 is less than second predetermined value (that is count value is less than the 3rd predetermined value), then processor 240 continue startup specific functions, calculating and export the 3rd subimage 224a and second coordinate of pairing instantly second object of the 4th subimage 234a and get back to substep e).In the present embodiment, in this at that time, second object for example for stylus but because of the time that continue to capture the sensed system 200 that falls short of be considered as cleanout tool.For example, in this at that time, the user may be by mistake moves stylus or finger with stylus or finger adjacent domain 212 and at once and left zone 212, and sensing system 200 can be avoided erroneous judgement and close above-mentioned specific function.
Be above-mentioned substep e in this mandatory declaration), f), g1), g), h) and h1) constituted for the second control stage.In the second control stage, but each thing of first image sensor 220 and 230 sensings of second image sensor all is called second object.In other words, in the second control stage, but second object is the common appellation of each thing of first image sensor 220 and 230 sensings of second image sensor.
In this mandatory declaration be, in practical application, at the substep in first control stage of the control method that is applied to sensing system of carrying out present embodiment a) before, the user can utilize stylus to carry out another specific function (being considered as second specific function) of sensing system 200, for example handwriting functions or picture function.Then, for the specific function (being considered as being different from first specific function of second specific function) of removing function is activated a period of time (for example the user uses blackboard eraser) and then is closed (for example the user removes blackboard eraser and picks up stylus again) afterwards, second specific function can be started once more for example.In other words, second specific function is a preset function of sensing system 200.
Second embodiment
Fig. 6 is the synoptic diagram of a kind of sensing system of second embodiment of the invention.Sensing system 300 has a panel 310, an image sensor 320, a direct reflection element 330 and a processor 340.Image sensor 320 is disposed at panel 310.The mirror reflection surface (reflective mirror plane) 332 that direct reflection element 330 is disposed at panel 310 and direct reflection element 330 is shone upon a first area 312 of panel 310 to form a second area 312 '.Image sensor 320 is towards direct reflection element 330 and be electrically connected to processor 340, and the sensing range of image sensor 320 is contained first area 312 and second area 312 '.In other words, the sensing system 300 of present embodiment omit first embodiment second image sensor 230 configuration and increase the configuration of direct reflection element 330.
When but the object 30 of a sensing system 300 sensings that the user utilized leans on adjacent domain 312, object 30 forms mirror images (mirror image) 30 ' with respect to direct reflection element 330, the position that image sensor 320 sensing first areas 312 and second area 312 ' and processor 340 calculate object 30 according to the image of 320 sensings of image sensor.Above-mentioned relevant technology contents can with reference to TaiWan, China number of patent application No. 097126033, No. 097142355 with No. 098100969 with and corresponding Application No. No. 12/249222, No. 12/334449 and No. 12/422191 content, so repeat no more in this.
Fig. 7 is the process flow diagram of control method of the sensing system that is applied to Fig. 6 of second embodiment of the invention.Fig. 8 is the detail flowchart of the control method of Fig. 7.Fig. 9 is the synoptic diagram of first image that image sensor sensed of the sensing system of Fig. 6.Figure 10 is the synoptic diagram of second image that image sensor sensed of the sensing system of Fig. 6.Please refer to Fig. 6 to shown in Figure 10, the substep that the difference of the control method that is applied to sensing system of present embodiment and the control method that is applied to sensing system of first embodiment is present embodiment a) with substep e) content be different from first embodiment substep a) and substep e) content.
The substep of present embodiment a) in, image sensor 320 sensing first areas 312 and second area 312 ' are to obtain one first image 322.First image 322 comprises one first subimage 322a and one second subimage 322b, and the first subimage 322a and second subimage 322b formation, first total image P3.
In the present embodiment, image sensor 320 has the sensor pixel (not illustrating) of a plurality of sensings first area 312 and second area 312 '.When one first object (not illustrating) is close to the first area 312 of panel 310, these sensor pixel sensing first areas 312 and second areas 312 ' of image sensor 320, these sensor pixels of image sensor 320 capture first image 322.At this moment, capture the first subimage 322a to these sensor pixel sensing first objects of small part, and to the mirror image of these sensor pixel sensing first objects of small part and capture the second subimage 322b.In other words, in this at that time, the first area 312 of the contiguous panel 310 of first object, and first object and its mirror image are captured into the first subimage 322a and the second subimage 322b in first image 322 by 320 sensings of image sensor.
The size of first total image P3 for example is the quantity of these corresponding sensor pixels of the acquisition first subimage 322a and the summation of the quantity of these corresponding sensor pixels that capture the second subimage 322b.In this mandatory declaration is that first subimage 322a shown in Figure 9 and pairing first object of the second subimage 322b for example are blackboard eraser.
The substep e of present embodiment) in, image sensor 320 sensing first areas 312 and second area 312 ' are to obtain one second image 324.Second image 324 comprises one the 3rd subimage 324a and one the 4th subimage 324b, and the 3rd subimage 324a and the 4th subimage 324b constitute one second total image P4.The 3rd subimage 324a and the 4th subimage 324b instantly corresponding respectively be one second object of contiguous first area 312 and the mirror image of second object.In other words, in this at that time, the first area 312 of the contiguous panel 310 of second object, and second object and its mirror image are captured into the 3rd subimage 324a and the 4th subimage 324b in second image 324 by 320 sensings of image sensor.
The size of second total image P4 is the quantity of these corresponding sensor pixels of acquisition the 3rd subimage 324a and the summation of the quantity of these corresponding sensor pixels of acquisition the 4th subimage 324b.In this mandatory declaration is that pairing second object of the 3rd subimage 324a shown in Figure 10 for example is a stylus.
In addition, first predetermined value of present embodiment can be a specific number of pixels, its for example between the quantity of these sensor pixels of image sensor 320 1/2nd to 2/3rds between.
In sum, the control method that is applied to sensing system of embodiments of the invention has following one of them or other advantages at least:
One,, determines whether starting specific function according to the size of the first total image that is captured, so the user uses the sensing system of embodiments of the invention with more convenient owing to be applied in the control method of sensing system at embodiments of the invention.
Two, in the control method that is applied to sensing system of embodiments of the invention, above-mentioned steps can be: size and the lasting length that captures the time of first total image according to the first total image that is captured determine whether starting specific function, so sensing system can be improved because of the situation that erroneous judgement starts specific function.
The above, only be embodiments of the invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (27)

1. control method that is applied to sensing system is characterized in that it comprises:
Size according to the one first total image that is captured determines whether starting a specific function.
2. the control method that is applied to sensing system according to claim 1 is characterized in that wherein said size according to this first total image that is captured determines whether that the step that starts this specific function is:
Size and the lasting length that captures the time of this first total image according to this first total image that is captured determine whether starting this specific function.
3. the control method that is applied to sensing system according to claim 2, it is characterized in that wherein said sensing system has a panel, one first image sensor and one second image sensor, this first image sensor and this second image sensor are disposed at this panel, and the sensing range of the sensing range of this first image sensor and this second image sensor is contained a zone of this panel respectively, and above-mentioned size and the lasting length that captures the time of this first total image according to this first total image that is captured determines whether that the step that starts this specific function comprises:
A) this first image sensor and this second image sensor simultaneously sensing should the zone to obtain one first image and one second image respectively, wherein this first image comprises one first subimage, this second image comprises one second subimage, and this first subimage and this second subimage constitute this first total image;
B) judge that whether the size of this first total image is more than or equal to one first predetermined value;
C) if the size of this first total image more than or equal to this first predetermined value, then and then judge and whether continue to capture the time of this first total image more than or equal to one second predetermined value; And
D) if the time that continues this first total image of acquisition more than or equal to this second predetermined value, then start this specific function.
4. the control method that is applied to sensing system according to claim 3 is characterized in that it more comprises:
C1) if the size of this first total image less than this first predetermined value, then calculate and export one first coordinate of this first subimage and pairing instantly one first object of this second subimage and get back to substep a).
5. the control method that is applied to sensing system according to claim 3 is characterized in that wherein said substep d) more comprise one first coordinate that calculates and export this first subimage and pairing instantly one first object of this second subimage.
6. the control method that is applied to sensing system according to claim 3 is characterized in that it more comprises:
D1) if the time that continues this first total image of acquisition less than this second predetermined value, then calculate and export one first coordinate of this first subimage and pairing instantly one first object of this second subimage and get back to substep a).
7. the control method that is applied to sensing system according to claim 3 is characterized in that, is carrying out substep d) afterwards, more comprise:
E) this first image sensor and this second image sensor simultaneously sensing should the zone to obtain one the 3rd image and one the 4th image respectively, wherein the 3rd image comprises one the 3rd subimage, the 4th image comprises one the 4th subimage, and the 3rd subimage and the 4th subimage constitute one second total image;
F) judge that whether the size of this second total image is less than this first predetermined value;
G) if the size of this second total image less than this first predetermined value, then and then judge and whether continue to capture the time of this second total image more than or equal to this second predetermined value; And
H) if the time that continues this second total image of acquisition more than or equal to this second predetermined value, then close this specific function.
8. the control method that is applied to sensing system according to claim 7 is characterized in that it more comprises:
G1) if the size of this second total image more than or equal to this first predetermined value, then continues to start this specific function and get back to substep e).
9. the control method that is applied to sensing system according to claim 8 is characterized in that wherein said substep g1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
10. the control method that is applied to sensing system according to claim 7 is characterized in that wherein said substep h) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
11. the control method that is applied to sensing system according to claim 7 is characterized in that it more comprises:
H1) if the time that continues this second total image of acquisition less than this second predetermined value, then continue this specific function of startup and get back to substep e).
12. the control method that is applied to sensing system according to claim 11 is characterized in that wherein said substep h1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
13. the control method that is applied to sensing system according to claim 7, it is characterized in that wherein said first image sensor has first sensor pixel that a plurality of sensings should the zone, this second image sensor has second sensor pixel that a plurality of sensings should the zone, and the size of this second total image is the quantity of first sensor pixel of those correspondences of acquisition the 3rd subimage and the summation of the quantity of those second corresponding sensor pixels that capture the 4th subimage.
14. the control method that is applied to sensing system according to claim 3, it is characterized in that wherein said first image sensor has first sensor pixel that a plurality of sensings should the zone, this second image sensor has second sensor pixel that a plurality of sensings should the zone, and the size of this first total image is the quantity of first sensor pixel of those correspondences of this first subimage of acquisition and the summation of the quantity of those second corresponding sensor pixels that capture this second subimage.
15. the control method that is applied to sensing system according to claim 2, it is characterized in that wherein said sensing system has a panel, one image sensor and a direct reflection element, this image sensor is disposed at this panel, this direct reflection arrangements of components in this panel and a first area of shining upon this panel to form a second area, the sensing range of this image sensor is contained this first area and this second area, and above-mentioned size and the lasting length that captures the time of this first total image according to this first total image that is captured determines whether that the step that starts this specific function comprises:
A) this this first area of image sensor sensing and this second area are to obtain one first image, and wherein this first image comprises one first subimage and one second subimage, and this first subimage and this second subimage constitute this first total image;
B) judge that whether the size of this first total image is more than or equal to one first predetermined value;
C) if the size of this first total image more than or equal to this first predetermined value, then and then judge and whether continue to capture the time of this first total image more than or equal to one second predetermined value; And
D) if the time that continues this first total image of acquisition more than or equal to this second predetermined value, then start this specific function.
16. the control method that is applied to sensing system according to claim 15 is characterized in that it more comprises:
C1) if the size of this first total image less than this first predetermined value, then calculate and export one first coordinate of this first subimage and pairing instantly one first object of this second subimage and get back to substep a).
17. the control method that is applied to sensing system according to claim 15 is characterized in that wherein said substep d) more comprise one first coordinate that calculates and export this first subimage and pairing instantly one first object of this second subimage.
18. the control method that is applied to sensing system according to claim 15 is characterized in that it more comprises:
D1) if the time that continues this first total image of acquisition less than this second predetermined value, then calculate and export one first coordinate of this first subimage and pairing instantly one first object of this second subimage and get back to substep a).
19. the control method that is applied to sensing system according to claim 15 is characterized in that, is carrying out substep d) afterwards, more comprise:
E) this this first area of image sensor sensing and this second area are to obtain one second image, and wherein this second image comprises one the 3rd subimage and one the 4th subimage, and the 3rd subimage and the 4th subimage constitute one second total image;
F) judge that whether the size of this second total image is less than this first predetermined value;
G) if the size of this second total image less than this first predetermined value, then and then judge and whether continue to capture the time of this second total image more than or equal to this second predetermined value; And
H) if the time that continues this second total image of acquisition more than or equal to this second predetermined value, then close this specific function.
20. the control method that is applied to sensing system according to claim 19 is characterized in that it more comprises:
G1) if the size of this second total image more than or equal to this first predetermined value, then continues to start this specific function and get back to substep e).
21. the control method that is applied to sensing system according to claim 20 is characterized in that wherein said substep g1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
22. the control method that is applied to sensing system according to claim 19 is characterized in that wherein said substep h) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
23. the control method that is applied to sensing system according to claim 19 is characterized in that it more comprises:
H1) if the time that continues this second total image of acquisition less than this second predetermined value, then continue this specific function of startup and get back to substep e).
24. the control method that is applied to sensing system according to claim 23 is characterized in that wherein said substep h1) more comprise one second coordinate that calculates and export the 3rd subimage and pairing instantly one second object of the 4th subimage.
25. the control method that is applied to sensing system according to claim 19, it is characterized in that wherein said image sensor has the sensor pixel of this first area of a plurality of sensings and this second area, the size of this second total image is the quantity of those corresponding sensor pixels of acquisition the 3rd subimage and the summation of the quantity of those corresponding sensor pixels of acquisition the 4th subimage.
26. the control method that is applied to sensing system according to claim 15, it is characterized in that wherein said image sensor has the sensor pixel of this first area of a plurality of sensings and this second area, the size of this first total image is the quantity of those corresponding sensor pixels of this first subimage of acquisition and the summation of the quantity of those corresponding sensor pixels of this second subimage of acquisition.
27. the control method that is applied to sensing system according to claim 1 is characterized in that wherein said specific function is a removing function.
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