CN101576784A - Input control device, notebook computer, input control method - Google Patents
Input control device, notebook computer, input control method Download PDFInfo
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- CN101576784A CN101576784A CNA2008101059986A CN200810105998A CN101576784A CN 101576784 A CN101576784 A CN 101576784A CN A2008101059986 A CNA2008101059986 A CN A2008101059986A CN 200810105998 A CN200810105998 A CN 200810105998A CN 101576784 A CN101576784 A CN 101576784A
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Abstract
The invention provides an input control device, a notebook computer and an input control method. The device comprises a light source module for emitting first light rays, a camera module for acquiring an image generated by second light rays which are light rays, changed by an input device, among the first light rays, an information extraction module for acquiring first position information on the input device from the image, a storage module for storing preset position information and a mapping relation between the preset position information and a control signal, a comparison module for comparing the first position information and the preset position and acquiring a comparison result, an output module for outputting a first control signal corresponding to first preset position information when the comparison result shows that the first position information is matched with the first preset position information in the preset position information. The input control device, the notebook computer and the input control method realize the low-cost and simple implementation of touch control and avoid interfering and influencing the vision of users.
Description
Technical field
The present invention relates to the input technology of electronic equipment, particularly a kind of input control device, notebook computer and input control method.
Background technology
Along with the success of iPhone on market, touching control technology becomes focus.Touching the experience that control can bring user's uniqueness, will be the development focus of following human-computer interaction technology, and mainstream operation system window7 of future generation will support to touch control technology comprehensively.
Present touch control technology depends on the special touch-screen based on capacitance principle, as adopting the touching technique based on resistance of multilayer circuit film.
Simultaneously, also have a kind of inner total reflection (Frustrated Total Internal Reflection) solution that is subjected to press down, it can be supported up to 52 points, even the identification shape, yet this solution needs special medium (glass), also needs special light source and modulating equipment.
Above-mentioned two kinds touch the control implementation and all have a common shortcoming, realization complexity and expensive.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of input control device, notebook computer and input control method, realizes simple, cheap touch input.
To achieve these goals, the embodiment of the invention provides a kind of input control device, comprising:
Light source module is used to launch first light;
Photographing module is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
Information extraction modules is used for obtaining from described image the primary importance information of described input media;
Preserve module, be used to preserve the corresponding relation of predeterminated position information and described predeterminated position information and control signal;
Comparison module is used for comparison primary importance information and predeterminated position information, obtains a comparative result;
Output module is used for when comparative result is represented the first predeterminated position information matches of primary importance information and described predeterminated position information, output and the first corresponding control signal of the described first predeterminated position information.
Preferably, above-mentioned device, wherein:
Described first light that described light source emitting module is launched is infrared light;
Described photographing module is the infrared photography module.
Preferably, above-mentioned device, wherein: described infrared photography module specifically comprises:
Imageing sensor with a light inlet; With
Be arranged at described light inlet and infrared filter that only can be by infrared light.
Preferably, above-mentioned device, wherein: the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
Preferably, above-mentioned device, wherein:
Described light source module is an emission array of emission infrared light;
The infrared light of described emission array emission forms an input area;
Described infrared photography module field range overlaps or covers fully described input area with input area;
The primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
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;
Memory device is arranged on the described mainboard, is used to preserve the corresponding relation of predeterminated position information and described predeterminated position information and control signal;
Light source module is arranged on the described mainboard, is used to launch first light;
Photographing module is arranged on the described mainboard, is connected with described chipset, is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
After described central processing unit is used for obtaining the primary importance information of described input media from described image, more described primary importance information and described predeterminated position information, and when comparative result is represented the first predeterminated position information matches in described primary importance information and the described predeterminated position information, output and the first corresponding control signal of the described first predeterminated position information.
Preferably, above-mentioned notebook computer, wherein:
Described first light that described light source emitting module is launched is infrared light;
Described photographing module is the infrared photography module.
Preferably, above-mentioned notebook computer, wherein: described infrared photography module specifically comprises:
Imageing sensor with a light inlet; With
Be arranged at the light inlet of described imageing sensor, and only can be by the infrared filter of infrared light.
Preferably, above-mentioned notebook computer, wherein: the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
Preferably, above-mentioned notebook computer, wherein:
Described light source module is an emission array of emission infrared light;
The infrared light of described emission array emission forms an input area;
Described infrared photography module field range overlaps or covers fully described input area with input area;
The primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
For achieving the above object, the embodiment of the invention also provides a kind of input control method, wherein, comprising:
Obtain the image that second light produces, described second light is the light that is transfused in described first light after device changes; From described image, obtain the primary importance information of described input media;
Relatively primary importance information and the predeterminated position information of preserving are in advance obtained comparative result;
When described comparative result is represented the first predeterminated position information matches in described primary importance information and the described predeterminated position information, according to the corresponding relation of described predeterminated position information and control signal, output and the first corresponding control signal of the described first predeterminated position information.
Preferably, above-mentioned method, wherein, described first light is infrared light, the described image that obtains the generation of second light adopts the infrared photography mode to obtain.
Preferably, above-mentioned method, wherein, the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
Preferably, above-mentioned method, wherein, the primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
Embodiments of the invention have following beneficial effect:
1, only utilize conventional light emission module, photographing module and process chip can realize touching control in the embodiment of the invention, it greatly reduces cost with respect to existing touch control realization technology;
2, a light source is set in the embodiment of the invention, produces first light, and then utilize input media to change this first light to obtain second light, photographing module obtains the image that second light produces, and according to the corresponding control signal of this image output, realizes simple;
3,, therefore can not cause and disturb and influence user's vision because the light in the embodiment of the invention is infrared light.
Description of drawings
Fig. 1 is the structural representation of the input control device of the embodiment of the invention;
Fig. 2 is the image of second light generation that the infrared photography module is caught under first kind of mode;
Fig. 3 is the synoptic diagram of predeterminated position information under first kind of mode;
The track of input media in the image that second light that Fig. 4 catches for infrared photography module under the second way produces;
Fig. 5 is the schematic flow sheet of the method for the embodiment of the invention.
Embodiment
In the input control device of the embodiment of the invention, notebook computer and the input control method thereof, one light source is set, produce first light, and then utilize input media to change this first light to obtain second light, photographing module obtains the image that second light produces, and according to the corresponding control signal of this image output.
The input control device of the embodiment of the invention comprises as shown in Figure 1:
Light source module is used to launch first light;
Photographing module is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
Information extraction modules is used for obtaining from described image the primary importance information of described input media;
Preserve module, be used to preserve the corresponding relation of predeterminated position information and predeterminated position information and control signal;
Comparison module is used for comparison primary importance information and predeterminated position information, obtains a comparative result;
Output module is used for exporting first control signal corresponding with the first predeterminated position information when described comparative result is represented the first predeterminated position information matches of primary importance information and predeterminated position information.
In specific embodiments of the invention, photographing module need obtain the image that second light produces, consider first light that this light source module is launched be transfused to second light after device changes should be easily by the identification of shooting module and the user is not exerted an influence as far as possible, therefore, this light source module adopts the infrared light transmitter module, and this photographing module is the infrared photography module, at this moment, because the infrared light that the infrared light transmitter module is launched is not in user's visual range, can not exert an influence to the user, simultaneously, this photographing module is the infrared photography module, comparatively speaking, the image after the shooting is easier is handled by information extraction modules.
In specific embodiments of the invention, this infrared photography module comprises:
Normal image sensor (making a video recording first-class) with a light inlet as CMOS camera, CCD; With
Only can be by the infrared filter of infrared light, described infrared filter is arranged at the light inlet of described normal image sensor.
Be elaborated with the input media of different implementations below to the embodiment of the invention.
＜implementation one 〉
In implementation one, this input media is a catoptron that is used to reflect the infrared light of transmitter module emission, wherein, second light is the infrared light of mirror reflection of being reflected in the infrared light of transmitter module emission, the image that photographing module obtains is the image that the infrared light of mirror reflection produces that is reflected in the infrared light of transmitter module emission, and this positional information is the position of described input media in the plane picture that described photographing module obtains, and is described in detail as follows.
Suppose that the user is pasted on finger (certainly with catoptron, can also be alternate manners such as dressing or hand), at this moment, user's finger is positioned over a photographing module point within the vision, and the infrared light of catoptron meeting reflection source module emission forms the passive infrared light source, and the infrared light of other positions can continue towards the direction emission away from light source module, at this moment, the infrared photography module is caught the infrared light of this reflection, forms image.
Figure 2 shows that when catoptron is circle, the image that the light of input media that the infrared photography module is caught reflection produces, wherein, the position of the infrared light of the mirror reflects that circle is partly caught for the infrared photography module.
From described image, obtain the primary importance information of described input media then by information extraction modules, promptly include the image of circle.
Simultaneously, owing to preserve module, preserve a plurality of predeterminated position information in advance, as shown in Figure 3.
Among Fig. 3, comprise 6 kinds of predeterminated position information, as described below:
First kind of predeterminated position information, the upper left side of circle in being in image;
Second kind of predeterminated position information, circle in being in image directly over;
The third predeterminated position information, the upper right side of circle in being in image;
The 4th kind of predeterminated position information, the lower left of circle in being in image;
The 5th kind of predeterminated position information, circle in being in image under;
The 6th kind of predeterminated position information, the lower right of circle in being in image.
At this moment, comparison module is relatively this primary importance information and six kinds of default predeterminated position information respectively, obtains a comparative result, when this comparative result is represented which predeterminated position information matches in this primary importance information and the predeterminated position information.
According to Fig. 2 and Fig. 3 as can be known, this primary importance information and first kind of predeterminated position information are complementary, finally by the control signal of first kind of predeterminated position information correspondence of output module output.
Certainly, above-mentioned is the explanation of carrying out with 6 kinds of predeterminated position information, and the number of this predeterminated position information also can be other number certainly, as 5 kinds, 7 kinds, 8 kinds, more or still less can.
Simultaneously, above-mentioned is the explanation of carrying out with images match, certainly can also be other mode, as this primary importance information is the coordinate of circle in image, and the corresponding preset positional information also is one group of coordinate, at this moment, the method for coupling can be, the nearest coupling that is judged as between two coordinates.
＜implementation two 〉
In implementation two, this input media is a catoptron, wherein, second light is the infrared light of mirror reflection of being reflected in the infrared light of transmitter module emission, and this positional information is the change in location track (be the movement locus of input media) of described input media in the plane picture that described photographing module obtains, and is described in detail as follows.
Suppose that the user is pasted on finger with catoptron, at this moment, be positioned over a photographing module point within the vision at very first time user finger, the infrared light of catoptron meeting reflection source module emission, and the infrared light of other positions can continue towards the direction emission away from light source module, at this moment, the infrared photography module is caught the infrared light of this reflection, forms first image.
Be positioned over photographing module another point within the vision at second time user finger, the infrared light of catoptron meeting reflection source module emission, and the infrared light of other positions can continue towards the direction emission away from light source module, at this moment, the infrared photography module is caught the infrared light of this reflection, forms second image;
……
Be positioned over photographing module another point within the vision at N time user finger, the infrared light of catoptron meeting reflection source module emission, and the infrared light of other positions can continue towards the direction emission away from light source module, at this moment, the infrared photography module is caught the infrared light of this reflection, forms the N image;
As shown in Figure 4, when being circular for catoptron, the image that the light of the input media reflection that the infrared photography module is caught successively produces, wherein, the position of the infrared light of the mirror reflects that circle is partly caught for the infrared photography module.
Can find that in conjunction with Fig. 4 the movement locus of input media is a horizontal linear.
Simultaneously, preserve a plurality of predeterminated position information in advance owing to preserve module, this predetermined movement information is default geometric figure, as horizontal line section, vertical line segment, circle etc.
At this moment, comparison module is relatively this primary importance information and default predeterminated position information respectively, obtains a comparative result, when this comparative result is represented which predeterminated position information matches in this primary importance information and the predeterminated position information.
According to Fig. 4 as can be known, this primary importance information and horizontal line section are complementary, and are finally exported the control signal of horizontal line section correspondence by output module.
Certainly, be to be the explanation that example is carried out in above-mentioned implementation one and implementation two, but should be appreciated that with a catoptron, when having a plurality of catoptron, can realize that too its implementation is the repetition of single catoptron, is not elaborated at this.
＜implementation three 〉
In above-mentioned implementation one and implementation two, light source module fixedly installs, so this input media is a catoptron, and the infrared light of its reflection source module emission, and then catch by photographing module.
And in implementation three of the present invention, this light source module is not fixedly install the pointolite of emission infrared light, and hand-held by the user, input media is the object of light source module position for a change, as people's finger.
At this, this second light is that the infrared light of transmitter module emission is changed the light that obtains behind the position.
The image that photographing module obtains is for being pointed the infrared light of the light source module emission that changes the position by the user;
Suppose that the pointolite that the user will launch infrared light is pasted on finger, at this moment, user's finger is positioned over a photographing module point within the vision, and photographing module can be caught the infrared light of light source module emission, forms image.
From described image, obtain the primary importance information of described input media then by information extraction modules, promptly include the image of pointolite position.
Simultaneously, owing to preserve module, preserve a plurality of predeterminated position information in advance, comparison module is relatively this primary importance information and predeterminated position information respectively, obtain a comparative result, when this comparative result is represented which predeterminated position information matches in this primary importance information and the predeterminated position information, finally by the control signal of the predeterminated position information correspondence of output module output coupling.
Certainly, this light source also can be an area source, but the area of this area source should be in the preset range, as the area of the image that forms for photographing module 10% in, certainly, also can be provided with as required, as the number of types of the control signal that can export as required and decide.
Certainly, in implementation three, this primary importance information is the explanation that the positional information of special time light source in image carried out, and certainly, this positional information also can be the movement locus of a period of time inner light source in image.
＜implementation four 〉
In implementation one, two and three, photographing module is determined the primary importance information of input media according to the ultrared position of absorbing within sweep of the eye.
In embodiment four, this light source module is an emission array of emission infrared light, and the infrared light of this emission array emission forms an input area, and the field range of infrared photography module overlaps or cover fully this input area with this input area.
Wherein, second light is to be transfused to remaining infrared light outside the infrared light that device stops in the infrared light of emission array emission, and the image that photographing module obtains is to be transfused to the image that remaining infrared light produces outside the infrared light that device stops in the infrared light of emission array emission.
When input media is in point of input area, the stop portions infrared light is obtained by the infrared photography module, in the image that infrared photography this moment module is absorbed, input media partly is black, distinguish mutually with other parts, get final product positioning input device according to the positional information of part that should be black (can certainly be the positional information of bright part) this moment, and then realize control according to the position or the track of input media.
Embodiment four is with above-mentioned 3 kinds of mode differences, above-mentioned 3 kinds of modes are come positioning input device according to the infrared ray of catching, and the ultrared location positioning input media that implementation four bases are blocked, other processing are identical, are not described in detail at this.
The notebook computer of the 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 used to preserve the corresponding relation of predeterminated position information and predeterminated position information and control signal;
Light source module is arranged on the described mainboard, is used to launch light;
Photographing module is arranged on the described mainboard, is connected with described chipset, is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
After described CPU is used for obtaining the primary importance information of described input media from described image, compare primary importance information and predeterminated position information, and when comparative result is represented the first predeterminated position information matches in primary importance information and the predeterminated position information, export first control signal corresponding with the first predeterminated position information.
The input control method of the embodiment of the invention comprises as shown in Figure 5:
Step 51 is obtained the image that second light produces, and described second light is the light that is transfused in first light launched of light source module after device changes;
Step 52 is obtained the primary importance information of described input media from described image;
Step 53, relatively primary importance information and the predeterminated position information of preserving are in advance obtained comparative result;
When step 54, described comparative result are represented the first predeterminated position information matches in primary importance information and the predeterminated position information,, export first control signal corresponding with the first predeterminated position information according to the corresponding relation of predeterminated position information and control signal.
In specific embodiments of the invention, this primary importance information comprises following situation:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period; Or
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
Certainly, the also corresponding change of corresponding preset positional information.
Because above-mentioned various situations have been described in detail in implementation, are 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 (14)
1. an input control device is characterized in that, comprising:
Light source module is used to launch first light;
Photographing module is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
Information extraction modules is used for obtaining from described image the primary importance information of described input media;
Preserve module, be used to preserve the corresponding relation of predeterminated position information and described predeterminated position information and control signal;
Comparison module is used for more described primary importance information and described predeterminated position information, obtains a comparative result;
Output module is used for when described comparative result is represented the first predeterminated position information matches of described primary importance information and described predeterminated position information, output and the first corresponding control signal of the described first predeterminated position information.
2. device according to claim 1 is characterized in that:
Described first light that described light source emitting module is launched is infrared light;
Described photographing module is the infrared photography module.
3. device according to claim 2 is characterized in that, described infrared photography module comprises:
Imageing sensor with a light inlet; With
Be arranged at described light inlet and infrared filter that only can be by infrared light.
4. according to claim 2 or 3 described devices, it is characterized in that the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
5. according to claim 2 or 3 described devices, it is characterized in that:
Described light source module is an emission array of emission infrared light;
The infrared light of described emission array emission forms an input area;
Described infrared photography module field range overlaps or covers fully described input area with described input area;
The primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
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;
Memory device is arranged on the described mainboard, is used to preserve the corresponding relation of predeterminated position information and described predeterminated position information and control signal;
Light source module is arranged on the described mainboard, is used to launch first light;
Photographing module is arranged on the described mainboard, is connected with described chipset, is used to obtain the image that second light produces, and described second light is the light that is transfused in described first light after device changes;
After described central processing unit is used for obtaining the primary importance information of described input media from described image, more described primary importance information and described predeterminated position information, and when comparative result is represented the first predeterminated position information matches in described primary importance information and the described predeterminated position information, output and the first corresponding control signal of the described first predeterminated position information.
7. notebook computer according to claim 6 is characterized in that:
Described first light that described light source emitting module is launched is infrared light;
Described photographing module is the infrared photography module.
8. notebook computer according to claim 7 is characterized in that, described infrared photography module specifically comprises:
Imageing sensor with a light inlet; With
Be arranged at the light inlet of described imageing sensor, and only can be by the infrared filter of infrared light.
9. according to claim 7 or 8 described notebook computers, it is characterized in that the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
10. according to claim 7 or 8 described notebook computers, it is characterized in that:
Described light source module is an emission array of emission infrared light;
The infrared light of described emission array emission forms an input area;
Described infrared photography module field range overlaps or covers fully described input area with described input area;
The primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
11. an input control method is characterized in that, comprising:
Obtain the image that second light produces, described second light is the light that is transfused in described first light after device changes; From described image, obtain the primary importance information of described input media;
Relatively primary importance information and the predeterminated position information of preserving are in advance obtained comparative result;
When described comparative result is represented the first predeterminated position information matches in described primary importance information and the described predeterminated position information, according to the corresponding relation of described predeterminated position information and control signal, output and the first corresponding control signal of the described first predeterminated position information.
12. method according to claim 11 is characterized in that, described first light is infrared light, and the described image that obtains the generation of second light adopts the infrared photography mode to obtain.
13. method according to claim 12 is characterized in that, the primary importance information of described input media is:
The position of infrared light in described image that moment is reflected by described input media; Or
The interior track of infrared light in described image that is reflected by described input media of time period; Or
The position of described infrared light in described image of a described light source module emission of the moment; Or
The track of described infrared light in described image of an interior described light source module emission of time period.
14. method according to claim 12 is characterized in that, the primary importance information of described input media is:
The position of described infrared light in described image that moment is blocked by described input media; Or
The interior track of described infrared light in described image that is blocked by described input media of time period.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102306068A (en) * | 2011-09-01 | 2012-01-04 | 广东威创视讯科技股份有限公司 | Camera shooting type touch control method and device |
| CN102306069A (en) * | 2011-09-01 | 2012-01-04 | 广东威创视讯科技股份有限公司 | Camera shooting type touch control method and device |
| CN104850271A (en) * | 2014-02-18 | 2015-08-19 | 联想(北京)有限公司 | Input method and device |
| CN104866073A (en) * | 2014-02-21 | 2015-08-26 | 联想(北京)有限公司 | Information processing method, system thereof and electronic equipment comprising information processing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428123C (en) * | 2005-12-27 | 2008-10-22 | 联想(北京)有限公司 | Information input device of digital equipment |
| CN101154137B (en) * | 2006-09-27 | 2010-04-14 | 联想(北京)有限公司 | GUI input mechanism |
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2008
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102306068A (en) * | 2011-09-01 | 2012-01-04 | 广东威创视讯科技股份有限公司 | Camera shooting type touch control method and device |
| CN102306069A (en) * | 2011-09-01 | 2012-01-04 | 广东威创视讯科技股份有限公司 | Camera shooting type touch control method and device |
| CN102306069B (en) * | 2011-09-01 | 2014-12-24 | 广东威创视讯科技股份有限公司 | Camera shooting type touch control method and device |
| CN104850271A (en) * | 2014-02-18 | 2015-08-19 | 联想(北京)有限公司 | Input method and device |
| CN104850271B (en) * | 2014-02-18 | 2019-03-29 | 联想(北京)有限公司 | A kind of input method and device |
| CN104866073A (en) * | 2014-02-21 | 2015-08-26 | 联想(北京)有限公司 | Information processing method, system thereof and electronic equipment comprising information processing system |
| CN104866073B (en) * | 2014-02-21 | 2018-10-12 | 联想(北京)有限公司 | The electronic equipment of information processing method and its system including the information processing system |
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| CN101576784B (en) | 2010-12-22 |
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