CN101576787B - Electric equipment, notebook computer and method for realizing touch control - Google Patents
Electric equipment, notebook computer and method for realizing touch control Download PDFInfo
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- CN101576787B CN101576787B CN2008101060269A CN200810106026A CN101576787B CN 101576787 B CN101576787 B CN 101576787B CN 2008101060269 A CN2008101060269 A CN 2008101060269A CN 200810106026 A CN200810106026 A CN 200810106026A CN 101576787 B CN101576787 B CN 101576787B
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Abstract
The invention provides electric equipment, a notebook computer and a method for realizing touch control. The electric equipment comprises a first light source transmitting module, a camera module, a first projection height acquiring module, a first distance acquiring module, a first positioning module and a control signal generating module, wherein the first light source transmitting module is used for transmitting a first light curtain and a second light curtain, and the parts of the first light curtain and the second light curtain, which correspond to an input area, are arranged on the upperpart of the input area, and have a first inclined angle which is more than zero; the camera module is used for acquiring projection images of all light curtains on an input device; the first projecti on height acquiring module is used for acquiring a first height between projections of the first light curtain and the second light curtain on the input device; the first distance acquiring module is used for acquiring a first distance between the input device and the first light source transmitting module; the first positioning module is used for positioning touch points according to the first distance and second positioning information; and the control signal generating module is used for outputting control signals according to positioning results of the touch points. The method has the advantages of easy realization and low realization cost of the touch control.
Description
Technical field
The present invention relates to touch the realization technology, particularly a kind of electronic equipment, notebook computer and touch implementation method.
Background technology
More and more adopted in the current electronic equipment and touched control technology, as mobile phone, PDA, automatic teller machine, notebook computer etc.
Yet the touch control technology that is adopted in the current electronic equipment mainly comprises vector pressure sensing type, resistance-type, condenser type etc., and it all realizes touching control by obtaining the position that is touched.
The inventor finds that there is following shortcoming in existing touch control technology in realizing process of the present invention:
All need to utilize touch-screen, and touch-screen costs an arm and a leg, simultaneously, when the touch-screen area strengthens, the cost of electronic equipment will significantly rise;
Touch-screen need dispose corresponding special circuit, realizes complicated.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of electronic equipment, notebook computer and touches implementation method, realizes simply reducing the realization cost that touches control.
To achieve these goals, the embodiment of the invention provides a kind of electronic equipment, comprising:
First light source emitting module is used to launch the first light curtain and the second light curtain, and the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top, and the described first light curtain and the second light curtain have angle greater than zero first angle;
Photographing module is used to obtain the projected image of all light curtains at input media;
The first standoff height acquisition module is used for obtaining described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image;
First apart from acquisition module, is used for relative position information according to described first height, first angle and the described first light curtain and the second light curtain and obtains first distance between described input media and described first light source emitting module;
First locating module is used for according to described first distance and touch point, second locating information location, and described second locating information is the relative position information of a described input media and an object of reference;
The control signal generation module is used for the positioning result output control signal according to described touch point.
Preferably, above-mentioned electronic equipment, wherein, described object of reference is described input area, and described second locating information is the described input media that obtains with respect to the distance on the border of described input area according to input media described in the image of the input area actual lateral separation with respect to the border of described input area.
Preferably, above-mentioned electronic equipment wherein, also comprises:
The secondary light source transmitter module, be used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain and the corresponding part of described input area are positioned at described input area top, and described the 3rd light curtain and the 4th light curtain have angle greater than zero second angle;
The second standoff height acquisition module is used for obtaining described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to described projected image;
The second distance acquisition module is used for relative position information according to described second height, second angle and described the 3rd light curtain and the 4th light curtain and obtains second distance between described input media and the described secondary light source transmitter module;
Described object of reference is described secondary light source transmitter module, and described second locating information is the second distance between described input media and the described secondary light source transmitter module.
Preferably, above-mentioned electronic equipment, wherein, described light curtain is an infrared laser light curtain, described photographing module is the infrared photography module.
Preferably, above-mentioned electronic equipment, wherein, described photographing module is a plurality of.
To achieve these goals, the embodiment of the invention also provides a kind of notebook computer, comprising:
Mainboard;
Central processing unit is arranged on the described mainboard;
Chipset is arranged on the described mainboard, is connected with described central processing unit;
Wherein, also comprise:
First light source emitting module, be arranged at described mainboard, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top, and the described first light curtain and the second light curtain have angle greater than zero first angle;
Photographing module is arranged at described mainboard, is connected with described chipset, is used to obtain the projected image of all light curtains at input media;
Described CPU is used for obtaining described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image, utilize the relative position information of described first height, first angle and the described first light curtain and the second light curtain to obtain first distance between described input media and the described light source emitting module, and according to behind described first distance and the touch point, second locating information location, according to the positioning result output control signal of described touch point;
Described second locating information is the relative position information of a described input media and an object of reference.
Preferably, above-mentioned notebook computer, wherein, described object of reference is described input area, and the described second locating information described input media that to be described CPU obtain with respect to the lateral separation of described input area according to input media described in the input area image is with respect to the actual lateral separation of described input area.
Preferably, above-mentioned notebook computer wherein, also comprises:
The secondary light source transmitter module, be arranged at described mainboard, be used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain and the corresponding part of input area are positioned at described input area top, and described the 3rd light curtain and the 4th light curtain have angle greater than zero second angle;
Described CPU also is used for obtaining described the 3rd light curtain and the 4th light curtain second height between the projection on the described input media according to described projected image, and obtains second distance between described input media and the described secondary light source transmitter module according to the relative position information of described second height, second angle and described the 3rd light curtain and the 4th light curtain;
Described object of reference is described secondary light source transmitter module, and described second locating information is the second distance between described input media and the described secondary light source transmitter module.
Preferably, above-mentioned notebook computer, wherein, described light curtain is an infrared laser light curtain, described photographing module is the infrared photography module.
Preferably, above-mentioned notebook computer, wherein, described photographing module is a plurality of.
To achieve these goals, the embodiment of the invention also provides a kind of touch control implementation method, comprising:
Emission has first light curtain and the second light curtain of angle greater than the first zero angle, and the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top;
Obtain the projected image of all light curtains at input media;
Obtain described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image;
Obtain first distance between described input media and the described light source emitting module according to the relative position information of described first height, first angle and the described first light curtain and the second light curtain;
According to described first distance and touch point, second locating information location, described second locating information is the relative position information of a described input media and an object of reference;
Positioning result output control signal according to described touch point.
Preferably, above-mentioned method, wherein, described object of reference is described input area, and described second locating information is the described input media that obtains with respect to the lateral separation of described input area according to input media described in the input area image actual lateral separation with respect to described input area.
Preferably, above-mentioned method, wherein, described object of reference is the secondary light source transmitter module, described second locating information is the second distance between described input media and the described secondary light source transmitter module.
The embodiment of the invention has following beneficial effect:
1, in the embodiment of the invention, utilizes light source emitting module to launch the first light curtain and the second light curtain, and then obtain the projected image of all light curtains,, realize simple according to positioning behind the projected image calculating location at input media;
2, in the embodiment of the invention, only utilize common electronic components such as light source emitting module, photographing module, it is with respect to touch-screen, and low price has reduced the realization cost that touches control effectively.
Description of drawings
Fig. 1 is the structural representation of the touch opertaing device in the electronic equipment of first embodiment of the invention;
Fig. 2 is the side schematic view of the electronic equipment of the embodiment of the invention;
Fig. 3 is the synoptic diagram behind user's finger touch input area in the embodiment of the invention;
Fig. 4 is a geometric representation of calculating D3 in the embodiment of the invention;
Fig. 5 is the synoptic diagram of touch point, location in the first embodiment of the invention;
Fig. 6 is the schematic flow sheet of the method for first embodiment of the invention;
Fig. 7 is the schematic flow sheet of the method for second embodiment of the invention.
Embodiment
In the electronic equipment of the embodiment of the invention, notebook computer and the touch control implementation method, setting can be launched the light source emitting module of a plurality of light curtains with certain angle, and obtain the light curtain after forming light spot image on the input media by photographing module, according to the distance between the light spot image calculating hot spot, can determine the physical location of touch point according to the angle of the distance between the hot spot, light curtain and the physical location of light source emitting module at last, and then realize touching control.
Utilizing before embodiment is elaborated, earlier some notions that relate to are described, be beneficial to better understand embodiment.
The light curtain is almost plane light; At this, why say almost plane light, be based on the consideration of reality, the light do not dispersed fully can not appear in reality, so planar light in real world applications, can not occur, so only may be almost plane light;
Input media can be that felt pen, user point or other have the device of entity, and its needs light curtain can form hot spot thereon and get final product, and this hot spot can be caught touch point, location, back by the shooting module;
Input area is limited by at least two light curtains, is positioned at the input area top with the corresponding light curtain of input area, and it also is subjected to the field range restriction of photographing module.
＜the first embodiment 〉
In the first embodiment of the present invention, be 1 with light source emitting module, and also being 1 situation, photographing module describes.
The electronic equipment of first embodiment of the invention comprises as shown in Figure 1:
First light source emitting module, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain the projection on the input area from above cover described input area (be light curtain and the corresponding part of described input area are positioned at input area above), and the described first light curtain and the described second light curtain have first angle;
Photographing module is used to obtain described light curtain formed projected image on described input media;
The standoff height acquisition module is used for obtaining described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image;
First apart from acquisition module, is used for relative position information according to described first height, first angle and the described first light curtain and the second light curtain and obtains first distance between described touch point and described first light source emitting module;
The second distance acquisition module is used for obtaining the actual lateral separation of touch point with respect to input area according to described input area image touch point with respect to the lateral separation of input area;
First locating module is used for according to described first distance and touch point, described actual lateral separation location;
The control signal generation module is used for the locating information output control signal according to described touch point.
In above-mentioned description, be to describe, but can certainly be a plurality of light curtains with the situation of launching two light curtains.
At this, above-mentioned electronic equipment can be universal electronic devices such as mobile phone, personal digital assistant, digital camera, computer.
In specific embodiments of the invention, photographing module need obtain described light curtain formed projected image on described input media, to calculate the height of described light curtain between the projection on the described input media, in order to realize accurate measurement, the best planar light curtain of this light curtain, but under the reality, the planar light curtain is difficult to realize, therefore, in specific embodiments of the invention, light source emitting module adopts the very little LASER Light Source of diversity to realize, makes the light curtain be similar to the planar light curtain, to reach best measurement result.
Because the embodiment of the invention is an electronic equipment commonly used in the daily life, therefore, the intensity of this light curtain of needs assurance can not cause damage to the user within limits.
Simultaneously, consider light curtain that this light source emitting module launches should be easily by the identification of shooting module and the user is not exerted an influence as far as possible, therefore, this light curtain should be different from the visible light curtain, in specific embodiments of the invention, this light source emitting module is the infrared laser transmitter module, and this photographing module is the infrared photography module, at this moment, because the infrared laser that the infrared laser transmitter module is launched can not exert an influence to the user not in user's visual range, simultaneously, this photographing module is the infrared photography module, has avoided the influence of visible light to measuring, and has improved measuring accuracy.
With real example embodiments of the invention are elaborated below.
As shown in Figure 2, side schematic view for the electronic equipment of first embodiment of the invention, first infrared laser source and second infrared laser source that this infrared laser transmitter module is provided with at a distance of D1 (i.e. the relative position information of the first light curtain and the second light curtain) up and down, it launches the infrared laser curtain respectively, and the angle between the first infrared laser curtain and the second infrared laser curtain is α.
When input media (user's finger or felt pen etc., in Fig. 3, be example with user's finger) when touching touch point in the input area, its synoptic diagram as shown in Figure 3, the first infrared laser curtain that the infrared laser transmitter module is launched and the second infrared laser curtain projection respectively are D2 in the height that the user points between two hot spots that the back forms.
Relation between D1, D2 and the α can obtain from figure as shown in Figure 4:
First distance D 3 between the touch point and first light source emitting module is as follows:
D3＝(D1-D2)×ctanα
Certainly, this first infrared laser source and second infrared laser source may be the sustained height settings, at this moment, and D3=D2 * ctan α.
After first distance D 3 that obtains between this touch point and first light source emitting module, can know that this touch point is positioned on the touch screen, be the center of circle with the center of first light source emitting module, be on the semicircle of radius with D3.
Simultaneously, further obtain the actual lateral separation D4 of touch point with respect to the border lateral separation of input area with respect to the border of input area according to touch point in the input area image, as shown in Figure 5, can touch point, unique location in conjunction with this semicircle.
Being that distance with From Left circle is the explanation that example is carried out among Fig. 5, can certainly be according to locating the touch point with the distance of coboundary, lower boundary, right margin, not being elaborated at this.
The computing machine of first embodiment of the invention comprises:
Mainboard;
Central processing unit is arranged on the described mainboard;
Chipset is arranged on the described mainboard, is connected with described central processing unit;
Memory device is arranged on the described mainboard, is connected with described chipset;
First light source emitting module, be arranged on the described mainboard, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain the projection on the input area from above cover described input area, and the described first light curtain and the described second light curtain have first angle;
Photographing module is arranged on the described mainboard, is connected with described chipset, is used to obtain described light curtain formed projected image on described input media;
Described CPU is used for described respectively projected image and obtains the described first light curtain and the second light curtain behind first height between the projection on the described input media, according to described first height, the relative position information of first angle and the described first light curtain and the second light curtain obtains first distance between described touch point and described first light source emitting module, be used for simultaneously obtaining the actual lateral separation of touch point with respect to the lateral separation of input area with respect to input area according to described input area image touch point, behind described first distance and touch point, described actual lateral separation location, according to the locating information output control signal of touch point.
The method of first embodiment of the invention comprises as shown in Figure 6:
＜the second embodiment 〉
In the second embodiment of the present invention, be 2 with light source emitting module, and being 1, photographing module describes for example.
The electronic equipment of second embodiment of the invention comprises:
First light source emitting module is used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain the projection on the input area from above cover described input area, and the described first light curtain and the described second light curtain have first angle;
The secondary light source transmitter module is used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain the projection on the input area from above cover described input area, and described the 3rd light curtain and the 4th light curtain have second angle;
Photographing module is used to obtain described light curtain formed projected image on described input media;
The standoff height processing module is used for obtaining the described first light curtain and the second light curtain respectively at the height of first between the projection on the described input media and described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to described projected image;
Apart from processing module, be used for relative position information according to described first height, first angle and the described first light curtain and the second light curtain and obtain first distance between described touch point and described first light source emitting module, and according to described second highly, the relative position information of second angle and described the 3rd light curtain and the 4th light curtain obtains the second distance between described touch point and described first light source emitting module;
Second locating module is used for locating described touch point according to described first distance and second distance;
The control signal generation module is used for the locating information output control signal according to described touch point.
In specific embodiments of the invention, photographing module need obtain described light curtain formed projected image on described input media, to calculate the height of described light curtain between the projection on the described input media, in order to realize accurate measurement, the best planar light curtain of this light curtain, but under the reality, the planar light curtain is difficult to realize, therefore, in specific embodiments of the invention, light source emitting module adopts the very little LASER Light Source of diversity to realize, makes the light curtain be similar to the planar light curtain, to reach best measurement result.
Because the embodiment of the invention is an electronic equipment commonly used in the daily life, therefore, the intensity of this light curtain of needs assurance can not cause damage to the user within limits.
Simultaneously, consider light curtain that this light source emitting module launches should be easily by the identification of shooting module and the user is not exerted an influence as far as possible, therefore, this light curtain should be different from the visible light curtain, in specific embodiments of the invention, this light source emitting module is the infrared laser transmitter module, and this photographing module is the infrared photography module, at this moment, because the infrared laser that the infrared laser transmitter module is launched can not exert an influence to the user not in user's visual range, simultaneously, this photographing module is the infrared photography module, has avoided the influence of visible light to measuring, and has improved measuring accuracy.
With real example embodiments of the invention are elaborated below.
As shown in Figure 2, (two transmitter modules have identical height for the side schematic view of the electronic equipment of second embodiment of the invention, therefore an infrared laser transmitter module wherein only is shown), first infrared laser source and second infrared laser source that this infrared laser transmitter module is provided with at a distance of D1 up and down, it launches the infrared laser curtain respectively, and the angle between the first infrared laser curtain and the second infrared laser curtain is α.
When input media (user's finger or felt pen etc., in Fig. 5, be example with user's finger) when touching touch point in the input area, its synoptic diagram as shown in Figure 5, the first infrared laser curtain that the infrared laser transmitter module is launched and the second infrared laser curtain projection are respectively pointed in the user, and the height between it is D2.
Relation between D1, D2 and the α can obtain from figure as shown in Figure 6:
First distance D 3 between the touch point and first light source emitting module is as follows:
D3＝(D1-D2)×ctanα
Certainly, this first infrared laser source and second infrared laser source may be the sustained height settings, at this moment, and D3=D2 * ctan α
Based on same reason, can obtain the second distance between touch point and the secondary light source transmitter module.
Because 4 infrared laser sources are arranged, therefore can simplify the processing of standoff height processing module by certain being provided with, as described below:
Mode one, the first light curtain and the 3rd light curtain are set to overlap, and the second light curtain is higher than the first light curtain, the 4th light curtain is higher than the first light curtain, this moment, the standoff height processing module obtained first height according to the distance of minimum hot spot in the described projected image and middle hot spot, obtained second height according to minimum hot spot and the highest hot spot.
Mode two, with the light curtain according to highly setting gradually, and do not intersect, this moment, the standoff height processing module can obtain first height and second highly according to the position of the hot spot in the described projected image.
Mode three, first light source emitting module and secondary light source transmitter module are launched the light curtain at interval, at this moment, photographing module can obtain light curtain on described input media formed second projected image of the light curtain of first light source emitting module emission in formed first projected image and secondary light source transmitter module emission on the described input media respectively, and then obtains the described first light curtain and the second light curtain at the height of first between the projection on the described input media and described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to first and second projected images respectively by the standoff height processing module.
Certainly, in specific embodiments of the invention, can also simplify the calculating of height in other way, not enumerate one by one at this.
After first distance and the second distance between touch point and the secondary light source transmitter module that obtain between the touch point and first light source emitting module, get final product this touch point, unique location, this touch point is the intersection point of two semicircles, first semicircle is the center of circle with first light source emitting module, with first distance is radius, and second semicircle is the center of circle with the secondary light source transmitter module, is radius with the second distance.
Above-mentioned be the explanation that example is carried out that is embodied as with single-point touches, also can realize multiple point touching control based on same reason.
The computing machine of second embodiment of the invention comprises:
Mainboard;
Central processing unit is arranged on the described mainboard;
Chipset is arranged on the described mainboard, is connected with described central processing unit;
Memory device is arranged on the described mainboard, is connected with described chipset;
First light source emitting module, be arranged on the described mainboard, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain the projection on the input area from above cover described input area, and the described first light curtain and the described second light curtain have first angle;
The secondary light source transmitter module, be arranged on the described mainboard, be used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain the projection on the input area from above cover described input area, and described the 3rd light curtain and the 4th light curtain have second angle;
Photographing module is arranged on the described mainboard, is connected with described chipset, is used to obtain described light curtain formed projected image on described input media;
Described CPU be used for according to described projected image obtain the described first light curtain and the second light curtain at the height of first between the projection on the described input media and described the 3rd light curtain and the 4th light curtain behind second height between the projection on the described input media, according to described first height, the relative position information of first angle and the described first light curtain and the second light curtain obtains first distance between described touch point and described first light source emitting module, according to described second height, the relative position information of second angle and the 3rd light curtain and the 4th light curtain obtains the second distance between described touch point and described first light source emitting module, and locate described touch point according to described first distance and second distance, according to the locating information output control signal of described touch point.
As shown in Figure 7, the method for second embodiment of the invention comprises:
Step 71 is obtained the described first light curtain, the second light curtain, the 3rd light curtain, the 4th light curtain formed projected image on described input media; The described first light curtain, the second light curtain, the 3rd light curtain and the 4th light curtain the projection on the input area from above cover described input area, and described first light curtain and the described second light curtain have first angle, and described the 3rd light curtain and the 4th light curtain have second angle;
Step 72 is obtained the described first light curtain and the second light curtain at the height of first between the projection on the described input media and described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to described projected image;
Step 73 is obtained first distance between described touch point and described first light source emitting module according to the relative position information of described first height, first angle and the described first light curtain and the second light curtain;
Step 74 is obtained second distance between described touch point and described first light source emitting module according to the relative position information of described second height, second angle and described the 3rd light curtain and the 4th light curtain;
Step 75 is located described touch point according to described first distance and second distance;
Step 76 is according to the locating information output control signal of described touch point.
＜the three embodiment 〉
In the third embodiment of the present invention, be 2 with light source emitting module, and photographing module is 2 and describe for example.
In the second above-mentioned embodiment, photographing module has only 1, in the ordinary course of things, above-mentioned second embodiment all can realize single-point touches control and multiple point touching control, yet in some cases, when realizing multiple point touching,, just might exist other input media to be stopped by other input media owing to there are a plurality of input medias.
Be controlled to be example with 2 touches, in the ordinary course of things, the second above-mentioned embodiment can realize single-point touches control and multiple point touching control, but in some cases, second input media is just in time blocked by first input media, at this moment, photographing module possibly can't obtain the projected image on second input media, and then can't carry out 2 touch controls.
The electronic equipment of third embodiment of the invention further is provided with:
Second photographing module is as backup, when multiple point touching is controlled, when the device of second embodiment can't obtain the projected image of all input medias, the projected image of second input media that is obtained in conjunction with second photographing module apart from acquisition module, second distance acquisition module and first locating module by standoff height acquisition module, first is realized the location to second touch point, and then realizes multiple spot control.
Since wherein all identical among processing mode and second embodiment of each module, be not described in detail at this.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. an electronic equipment is characterized in that, comprising:
First light source emitting module, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain are almost plane light, the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top, and the described first light curtain and the second light curtain have angle greater than zero first angle;
Photographing module is used to obtain the projected image of all light curtains at input media;
The first standoff height acquisition module is used for obtaining described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image;
First apart from acquisition module, is used for relative position information according to described first height, first angle and the described first light curtain and the second light curtain and obtains first distance between described input media and described first light source emitting module;
First locating module is used for according to described first distance and touch point, second locating information location, and described second locating information is the relative position information of a described input media and an object of reference;
The control signal generation module is used for the positioning result output control signal according to described touch point.
2. electronic equipment according to claim 1, it is characterized in that, described object of reference is the border of described input area, and described second locating information is the described input media that obtains with respect to the distance on the border of described input area according to input media described in the image of the input area actual lateral separation with respect to the border of described input area.
3. electronic equipment according to claim 1 is characterized in that, also comprises:
The secondary light source transmitter module, be used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain are almost plane light, described the 3rd light curtain and the 4th light curtain and the corresponding part of described input area are positioned at described input area top, and described the 3rd light curtain and the 4th light curtain have angle greater than zero second angle;
The second standoff height acquisition module is used for obtaining described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to described projected image;
The second distance acquisition module is used for relative position information according to described second height, second angle and described the 3rd light curtain and the 4th light curtain and obtains second distance between described input media and the described secondary light source transmitter module;
Described object of reference is described secondary light source transmitter module, and described second locating information is the second distance between described input media and the described secondary light source transmitter module.
4. electronic equipment according to claim 3 is characterized in that, the described first light curtain, the second light curtain, the 3rd light curtain and the 4th light curtain are infrared laser light curtain, and described photographing module is the infrared photography module.
5. according to claim 1 or 2 or 3 described electronic equipments, it is characterized in that described photographing module is a plurality of.
6. notebook computer comprises:
Mainboard;
Central processing unit is arranged on the described mainboard;
Chipset is arranged on the described mainboard, is connected with described central processing unit;
It is characterized in that, also comprise:
First light source emitting module, be arranged at described mainboard, be used to launch the first light curtain and the second light curtain, the described first light curtain and the second light curtain are almost plane light, the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top, and the described first light curtain and the second light curtain have angle greater than zero first angle;
Photographing module is arranged at described mainboard, is connected with described chipset, is used to obtain the projected image of all light curtains at input media;
Described central processing unit is used for obtaining described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image, utilize the relative position information of described first height, first angle and the described first light curtain and the second light curtain to obtain first distance between described input media and described first light source emitting module, and according to behind described first distance and the touch point, second locating information location, according to the positioning result output control signal of described touch point;
Described second locating information is the relative position information of a described input media and an object of reference.
7. notebook computer according to claim 6, it is characterized in that, described object of reference is the border of described input area, described second locating information be described central processing unit according to input media described in the input area image with respect to described input area the described input media that obtains of border lateral separation with respect to the actual lateral separation of described input area.
8. notebook computer according to claim 6 is characterized in that, also comprises:
The secondary light source transmitter module, be arranged at described mainboard, be used to launch the 3rd light curtain and the 4th light curtain, described the 3rd light curtain and the 4th light curtain are almost plane light, described the 3rd light curtain and the 4th light curtain and the corresponding part of input area are positioned at described input area top, and described the 3rd light curtain and the 4th light curtain have angle greater than zero second angle;
Described central processing unit also is used for obtaining described the 3rd light curtain and the 4th light curtain second height between the projection on the described input media according to described projected image, and obtains second distance between described input media and the described secondary light source transmitter module according to the relative position information of described second height, second angle and described the 3rd light curtain and the 4th light curtain;
Described object of reference is described secondary light source transmitter module, and described second locating information is the second distance between described input media and the described secondary light source transmitter module.
9. notebook computer according to claim 8 is characterized in that, the described first light curtain, the second light curtain, the 3rd light curtain and the 4th light curtain are infrared laser light curtain, and described photographing module is the infrared photography module.
10. according to claim 6 or 7 or 8 described notebook computers, it is characterized in that described photographing module is a plurality of.
11. one kind touches the control implementation method, it is characterized in that, comprising:
Emission has first light curtain and the second light curtain of angle greater than the first zero angle, and the described first light curtain and the second light curtain are almost plane light, and the described first light curtain and the second light curtain and the corresponding part of input area are positioned at described input area top;
Obtain the projected image of all light curtains at input media;
Obtain described first light curtain and first height of the second light curtain between the projection on the described input media according to described projected image;
Obtain first distance between described input media and first light source emitting module of launching the described first light curtain and the second light curtain according to the relative position information of described first height, first angle and the described first light curtain and the second light curtain;
According to described first distance and touch point, second locating information location, described second locating information is the relative position information of a described input media and an object of reference;
Positioning result output control signal according to described touch point.
12. method according to claim 11, it is characterized in that, described object of reference is the border of described input area, and described second locating information is the described input media that obtains with respect to the lateral separation on the border of described input area according to input media described in the input area image actual lateral separation with respect to described input area.
13. method according to claim 11 is characterized in that, obtains all light curtains and also comprises before the projected image of input media:
The secondary light source transmitter module is launched the 3rd light curtain and the 4th light curtain; Described the 3rd light curtain and the 4th light curtain are almost plane light, described the 3rd light curtain and the 4th light curtain the projection on the input area from above cover described input area, and described the 3rd light curtain and the 4th light curtain have second angle;
Obtaining all light curtains also comprises after the projected image of input media:
Obtain described the 3rd light curtain and second height of the 4th light curtain between the projection on the described input media according to described projected image;
Obtain second distance between described touch point and the described secondary light source transmitter module according to the relative position information of described second height, second angle and described the 3rd light curtain and the 4th light curtain;
Described object of reference is the secondary light source transmitter module, and described second locating information is described second distance.
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| CN2008101060269A CN101576787B (en) | 2008-05-07 | 2008-05-07 | Electric equipment, notebook computer and method for realizing touch control |
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| CN2008101060269A CN101576787B (en) | 2008-05-07 | 2008-05-07 | Electric equipment, notebook computer and method for realizing touch control |
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| CN101576787B true CN101576787B (en) | 2011-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103974010B (en) * | 2013-02-04 | 2017-09-29 | 联想(北京)有限公司 | The method and electronic equipment of a kind of light filling |
| CN103226411B (en) * | 2013-04-10 | 2015-12-02 | 苏州佳世达光电有限公司 | A kind of interactive projection system and touch-control exchange method thereof |
| JP5880503B2 (en) * | 2013-09-11 | 2016-03-09 | コニカミノルタ株式会社 | Touch panel input device |
| CN105094456A (en) * | 2014-05-21 | 2015-11-25 | 中强光电股份有限公司 | Optical touch-control device and correction method thereof |
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