CN103699274B - Information input device and method based on projection and infrared sensing - Google Patents
Information input device and method based on projection and infrared sensing Download PDFInfo
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- CN103699274B CN103699274B CN201310739468.8A CN201310739468A CN103699274B CN 103699274 B CN103699274 B CN 103699274B CN 201310739468 A CN201310739468 A CN 201310739468A CN 103699274 B CN103699274 B CN 103699274B
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Abstract
The invention provides an information input device and method based on projection and infrared sensing. The method includes: by a projection module, projecting the images of a virtual keyboard or/and a virtual mouse or/and a virtual touch panel; when an infrared sensing module senses the infrared ray transmitted by a human body in a projection area, determining the two-dimensional coordinates, under an infrared sensing module two-dimensional coordinate system, of each sensing area; calculating to obtain the three-dimensional coordinates, under a projection module three-dimensional coordinate system, of each sensing area according to the determined two-dimensional coordinates, under an infrared sensing module two-dimensional coordinate system, of each sensing area; comparing the three-dimensional coordinates with the three-dimensional coordinates of the images projected by the projection module, and if the sensing areas are located in the projection images, generating input signals according to the three-dimensional coordinates of the sensing areas, and inputting the signals to a terminal. By the method, information input accuracy is increased.
Description
Technical field
The present invention relates to technical field of information input, message input device more particularly, to based on projection and infrared induction and
Method.
Background technology
In order to strengthen the portability of terminal, occur in that the keyboard of terminal, mouse, touch pad etc. at present with intelligence projection key
The technology that disk substitutes.Specifically, existing smart interactive projection system includes taking keyboard as a example：One infrared camera unit, one
Virtual interactive region, a projector unit, an Infrared laser emission device unit, a memory cell, a processing unit, wire communication
Unit and wireless communication unit；When the optional position in virtual interactive region is by finger or other touch apparatus " click ", infrared
Camera unit detects light field and is blocked, and identifies the positional information of " click " event by processing unit, by memory cell
Positional information under infrared camera unit coordinate system is mapped to the positional information under virtual interactive Regional coordinate system, and will
" click " event is converted into corresponding touch event, by data transmission unit, is transferred in mobile terminal or computer.
The defect of said method is：Only use an infrared camera, straight line can be caused to cover, reduce Random seismic field
Accuracy；And, signal input relies on the hot spot reflecting to form in human body of laser, is easily affected by illumination, distance, Er Qieqiang
The radiation of laser also increases therewith.
Content of the invention
The present invention provides the message input device and method based on projection and infrared induction, to improve the accurate of information input
Property.
The technical scheme is that and be achieved in that：
A kind of message input device based on projection and infrared induction, this device includes：Projection module, infrared induction mould
Block, processing module, control module and memory module, and, the number at least two of infrared induction module, wherein：
Projection module：Project the image of dummy keyboard or/and virtual mouse or/and virtual touchpad to designated area；
Infrared induction module：When sensing human body in the infrared ray that view field launches, induction region is infrared at this
Two-dimensional coordinate under induction module two-dimensional coordinate system is sent to processing module；
Processing module：Two dimension seat under respective two-dimensional coordinate system for the induction region sent according to all infrared induction modules
Mark, is calculated three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region, this three-dimensional coordinate is sent to control mould
Block；
Control module：Three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region that receiving processing module is sent,
The three-dimensional coordinate that the projection module that this three-dimensional coordinate is stored with memory module projects image is contrasted, if finding this induction zone
Domain is located in projection image, then the three-dimensional coordinate according to this induction region produces input signal and is input to terminal；
Memory module：The three-dimensional coordinate of the image of storage projection module projection.
Described control module is further used for, the coarse adjustment parameter for view field orientation of receiving user's input, according to
The view field of this coarse adjustment parameter adjustment projection module；
Or, control module is further used for, the fine tuning order of receiving user's input, and receiving processing module is sent afterwards
The three-dimensional coordinate on the summit of view field that user sets, according to this three-dimensional coordinate, calculates the view field to projection module
Fine tuning parameter, according to the view field of this fine tuning parameter adjustment projection module, and, the three-dimensional seat of the image that projection module is projected
Memory module is arrived in mark storage.
Described control module is further used for, and fine tuning parameter is stored memory module, and, have selected when user is detected
During one group of fine tuning parameter of memory module storage, according to the view field of this fine tuning parameter adjustment projection module.
Described control module is further used for, the projected color of receiving user's input, adjusts projection module according to this color
View field color；
Or, the projection brightness parameter of receiving user's input, the view field according to this parameter adjustment projection module bright
Degree.
Described control module is further used for, when the projected keyboard receiving user input or/and mouse or/and touch pad
Order after, read keyboard or/and mouse from memory module or/and touch pad image be sent to projection module, so that projective module
Block projects keyboard or/and mouse or/and touch pad image to designated area.
Described control module is further used for, after receiving the startup order of user input, to projection module, infrared sense
Answer module, processing module to send and start order；After receiving the shutdown command of user input, to projection module, infrared induction
Module, processing module send shutdown command.
Described device is an independent peripheral device, is connected by wired or wireless way between terminal；
Or, described device is embedded in terminal.
When described device is embedded in terminal, described device shares CPU and memory module, wherein, institute with described terminal
State processing module to be located in CPU with control module.
A kind of data inputting method based on projection and infrared induction, the method includes：
Projection module projects the image of dummy keyboard or/and virtual mouse or/and virtual touchpad to designated area；
When infrared induction module senses human body in the infrared ray that view field launches, determine that induction region is infrared at this
Two-dimensional coordinate under induction module two-dimensional coordinate system, wherein, the number at least two of infrared induction module；
Two-dimensional coordinate under respective two-dimensional coordinate system for the induction region according to the determination of all infrared induction modules, calculates
To three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region；By this three-dimensional coordinate and the image of projection module projection
Three-dimensional coordinate is contrasted, if finding, induction region is located in projection image, and the three-dimensional coordinate according to induction region produces defeated
Enter signal input to terminal.
Methods described is further used for, when receiving the coarse adjustment parameter for view field orientation of user input, root
View field according to this coarse adjustment parameter adjustment projection module；
Or, the fine tuning order of receiving user's input, the user's both hands being sensed according to each infrared induction module afterwards
Finger sets the infrared ray of the apex transmitting of view field in user, determines the three-dimensional on the summit of view field that user sets
Coordinate, according to this three-dimensional coordinate, calculates the fine tuning parameter of the view field to projection module, is projected according to this fine tuning parameter adjustment
The view field of module.
Methods described is further used for, and stores calculated fine tuning parameter, and, have selected storage when user is detected
During one group of fine tuning parameter, according to the view field of this fine tuning parameter adjustment projection module.
Methods described is further used for, the projected color of receiving user's input, adjusts the throwing of projection module according to this color
The color in shadow zone domain；
Or, the projection brightness parameter of receiving user's input, the view field according to this parameter adjustment projection module bright
Degree.
Methods described is further used for, when the life of the projected keyboard receiving user input or/and mouse or/and touch pad
After order, keyboard or/and mouse or/and touch pad image are sent to projection module, so that projection module projects to designated area
Keyboard or/and mouse or/and touch pad image.
It can be seen that, the present invention uses multiple infrared induction modules, has effectively evaded the phenomenon of straight line masking, has improve information defeated
The accuracy entering, and no laser emission, will not cause damage to human body.
Brief description
Fig. 1 is the composition schematic diagram based on projection and the message input device of infrared induction provided in an embodiment of the present invention；
Fig. 2 is the exemplary plot that the view field to projection module 11 provided in an embodiment of the present invention carries out fine tuning；
Fig. 3 is the data inputting method flow chart based on projection and infrared induction provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.
Fig. 1 is the composition schematic diagram based on projection and the message input device of infrared induction provided in an embodiment of the present invention,
As shown in figure 1, it mainly includes：Projection module 11, infrared induction module 12, processing module 13, control module 14 and storage mould
Block 15, and, the number at least two of infrared induction module 12, wherein：
Projection module 11：The image of dummy keyboard or/and mouse or/and touch pad after startup, is projected to designated area.
The light source that projection module 11 uses is any visible ray.
The region being projected should be the non-thermal objects of surfacing, and the better accuracy rate of surface smoothness is higher, carries
The surface of projection does not need certain level to place.
Infrared induction module 12：After startup, when sensing human body in the infrared ray that view field launches, by induction region
Two-dimensional coordinate under this infrared induction module 12 two-dimensional coordinate system is sent to processing module 13.
Infrared induction module 12 can be using pyroelectric infrared sensor or other more accurate infrared acquisition sensings
Device.
Infrared induction module 12 can be placed on the optional position of terminal, but needs one between different infrared induction module
Fixed interval, the accuracy being spaced bigger sensing is better.In addition, the accuracy of the more sensings of infrared induction module quantity is better.
Infrared ray is a kind of electromagnetic radiation, is one kind of numerous invisible rays, has the property of normal light, can be with light
Fast straightline propagation.The visible light wave of human eye is 380nm-780nm, and ultrared light wave is the long ray of 780nm-1mm, and people
Body normal body temperature is 36～37.5 degrees Celsius, and its radiated infrared wavelength is 9.67～9.64um, and centre wavelength is 9.65um, is in
Ultrared wave-length coverage.The infrared ray of human-body emitting gathers on infrared inductor after the enhancing of Fei Nier optical filter, red
Outer inductor generally adopts pyroelectricity element, and this element is receiving when human infrared radiation temperature changes and will lose
Charge balance, and then produce induced signal.
When user's hand occurs in view field, the infrared ray of hand transmitting can be sensed by each infrared induction module 12
Arrive.
Processing module 13：Receive the two-dimensional coordinate of the induction region that each infrared induction module 12 is sent, according to all red
The two-dimensional coordinate of the induction region that outer induction module 12 is sent, is calculated induction region under projection module 11 three-dimensional system of coordinate
Three-dimensional coordinate, this three-dimensional coordinate is sent to control module 14.
Control module 14：Three-dimensional under projection module 11 three-dimensional system of coordinate for the induction region that receiving processing module 13 is sent
Coordinate, dummy keyboard or/and mouse that the projection module 11 that this three-dimensional coordinate of induction region is stored with memory module 15 projects
The three-dimensional coordinate of the image of mark or/and touch pad is contrasted, if finding, this induction region is located in projection image, and basis should
The three-dimensional coordinate of induction region produces input signal and is input to terminal.
Memory module 15：The view field of storage projection module 11, that is, the dummy keyboard projecting or/and mouse or/and touch
The three-dimensional coordinate of the image of template.
Control module 14 is further used for, the adjustment ginseng carrying the view field to projection module 11 of receiving user's input
The coarse adjustment order of number, adjusts the view field of projection module 11 according to this adjusting parameter.
Coarse adjustment generally refers to the orientation adjustment to view field, such as：The adjustment in four orientation in upper and lower, left and right.
Control module 14 is further used for, the fine tuning order of receiving user's input, and receiving processing module 13 is sent afterwards
The three-dimensional coordinate on the summit of view field that user sets, according to this three-dimensional coordinate, calculates the view field to projection module 11
Adjusting parameter, according to this adjusting parameter adjust projection module 11 view field.
After fine tuning is wanted in user's determination, first input fine tuning order to control module 14, then, two fingers of two hands are same
When be put into user setting two pairs of angular vertexs of view field on, so, infrared induction module 12 can sense this two simultaneously
To angular vertex, this two two-dimensional coordinates to angular vertex under respective infrared induction module 12 two-dimensional coordinate system can be by corresponding red
Outer induction module 12 is sent to processing module 13, after treated module 13 is processed, obtains this two to angular vertex in projection module
Three-dimensional coordinate under 11 three-dimensional system of coordinates is simultaneously sent to control module 14, and control module 14 is according to this two three-dimensionals to angular vertex
Coordinate can calculate user view field to be set, and then determine the adjustment ginseng of projection module 11 according to this view field
Number.Wherein, because view field is usually rectangle, therefore, if obtain rectangular two coordinates to angular vertex so that it may
Calculate rectangular two other to angular vertex, according to rectangular four summits so that it may obtain rectangular accurate location.
Control module 14 obtain user setting view field after, by the three-dimensional coordinate of view field i.e., the void of projection
The three-dimensional coordinate intending the image of keyboard or/and mouse or/and touch pad stores memory module 15.
In actual applications, user can also carry out to view field stretching, the adjustment such as reduces, shifts, and implement all
Can by user's hand projection surface movement, infrared induction module 12 senses the infrared ray of user's hand transmitting, and will feel
Two-dimensional coordinate under this infrared induction module 12 two-dimensional coordinate system for the region is answered to be sent to processing module 13, by processing module 13
The two-dimensional coordinate of the induction region sent according to all infrared induction modules 12 is calculated the three-dimensional coordinate of this induction region, then
Determine adjusting parameter by control module 14 according to the three-dimensional coordinate of induction region to obtain.
Further, this adjusting parameter can be saved in storage mould after obtaining the adjusting parameter of fine tuning by control module 14
Block 15.Wherein, if user repeatedly sets view field, corresponding for the plurality of view field adjusting parameter all can be preserved
To memory module 15, and set one of which adjusting parameter as giving tacit consent to adjusting parameter.Hereafter, user can projected area as needed
Domain, directly specifies adjusting parameter to control module 14, and control module 14 is according to the adjusting parameter specified directly by projection module 11
View field be adjusted to user needs view field.
Fig. 2 gives the exemplary plot that the view field to projection module 11 provided in an embodiment of the present invention carries out fine tuning.
Control module 14 is further used for, and the color adjustment command carrying projected color of receiving user's input, according to this
Projected color, the color of the view field of adjustment projection module 11.
Control module 14 is further used for, the brightness adjustment order carrying projection brightness parameter of receiving user's input, root
According to this projection brightness parameter, adjust the brightness of the view field of projection module 11.
Control module 14 is further used for, after receiving the startup order of user input, to other modules：Projection module
11st, infrared induction module 12 and processing module 13 send and start order；After receiving the shutdown command of user input, to other
Module：Projection module 11, infrared induction module 12 and processing module 13 send shutdown command.
Control module 14 is further used for, when the projected keyboard receiving user input or/and mouse or/and touch pad
After order, read keyboard or/and mouse from memory module 15 or/and touch pad image is sent to projection module 11, to project
Module 11 projects keyboard or/and mouse or/and touch pad image to designated area.
In Fig. 1 shown device, the order that user inputs to control module 14, such as：Adjustment order includes：Coarse adjustment order, thin
Adjust order, the color adjustment command, brightness adjustment order etc., open command, shutdown command etc., can be triggered by remote control；Or
Person is it is also possible to automatically trigger according to configuration, such as：A switch module can be increased in a device, be configured with this module：When
When cursor focus enter predeterminated position, send open command to control module 14, so, when switch module finds that cursor focus are entered
When having entered predeterminated position, then send open command to control module 14, control module 14 is again to other modules：Projection module 11,
Infrared induction module 12 and processing module 13 send open command, and wherein, predeterminated position is such as：URL for input terminal
（Uniform Resource Location, Uniform Resource Identifier）The http address field of address.
Fig. 1 shown device can support Random seismic field, that is, support that an infrared induction module senses multiple sensings simultaneously
Region, now, processing module 13 can determine what different infrared induction modules sensed according to the relative position between induction region
Whether region is the same area.
Below, the present invention is further described taking intelligent television as a example：
Embed projection module in intelligent television top center position, for projecting the images such as keyboard, mouse, touch pad, throw
Image can be projected directly on the regions such as parlor tea table for shadow module.
At intelligent television top two, side position is respectively embedded into infrared induction module, for sensing human body（Such as finger）Throwing
Activity in the domain of shadow zone, and three-dimensional coordinate is formed by processing module, then judged whether according to this three-dimensional coordinate by control module
In the keyboard projecting, mouse, touch pad image.For increasing accuracy rate, infrared induction module can be increased, as shown in Fig. 2 can
Embed an infrared induction module in intelligent television bottom of screen middle position again.
Use this device for the first time, user needs view field is adjusted, and concrete grammar is first to be carried out slightly with teleswitch
Adjust, by complete for view field projection on the table, reuse hand and carry out fine tuning, both hands finger is put by specifically user respectively simultaneously
In project image two to angular vertex, infrared induction module, processing module and control module collaborative work, sense user's hand
Refer to, according to user's finger, view field is adjusted, furthermore it is also possible to according to the action of user's finger, enter to view field
Row such as stretches, reduces, shifting at the adjustment, until user's hand lifts.
After the completion of adjustment, hereafter open this device every time, as long as user's request is constant being just not required to adjust view field more just
Can be used directly.
When user does not need using this device, device is closed, when user needs using this device, permissible
Opened by control module.
Fig. 3 is the data inputting method flow chart based on projection and infrared induction provided in an embodiment of the present invention, the method
It is applied on Fig. 1 shown device, as shown in figure 3, it comprises the following steps that：
Step 301：Projection module projects dummy keyboard or/and virtual mouse or/and virtual touchpad to designated area
Image.
Step 302：When infrared induction module senses user's finger in the infrared ray that view field launches, determine sensing
Two-dimensional coordinate under this infrared induction module two-dimensional coordinate system for the region.
Step 303：Two dimension seat under respective two-dimensional coordinate system for the induction region according to the determination of each infrared induction module
Mark, is calculated three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region；This three-dimensional coordinate is thrown with projection module
The three-dimensional coordinate of the image penetrated is contrasted, if finding, induction region is located in projection image, according to the three-dimensional of induction region
Coordinate produces input signal and is input to terminal.
In actual applications, when receiving the coarse adjustment parameter of the view field to projection module of user input, according to
The view field of this coarse adjustment parameter adjustment projection module；
Or, the fine tuning order of receiving user's input, the user's both hands being sensed according to each infrared induction module afterwards
Finger sets the infrared ray of the apex transmitting of view field in user, determines the three-dimensional on the summit of view field that user sets
Coordinate, according to this three-dimensional coordinate, calculates the fine tuning parameter of the view field to projection module, is projected according to this fine tuning parameter adjustment
The view field of module；
Or, the projected color of receiving user's input, the color of the view field of projection module is adjusted according to this color；
Or, the projection brightness parameter of receiving user's input, the view field according to this parameter adjustment projection module bright
Degree.
In actual applications, calculated fine tuning parameter can be stored, and, as detect that user have selected storage one
During group fine tuning parameter, according to the view field of this fine tuning parameter adjustment projection module.
In actual applications, after the order of the projected keyboard receiving user input or/and mouse or/and touch pad,
Keyboard or/and mouse or/and touch pad image are sent to projection module, so that projection module projects keyboard to designated area
Or/and mouse or/and touch pad image.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement done etc., should be included within the scope of protection of the invention.
Claims (11)
1. a kind of message input device based on projection and infrared induction is it is characterised in that this device includes：Projection module, red
Outer induction module, processing module, control module and memory module, and, the number at least two of infrared induction module, wherein：
Projection module：Project the image of dummy keyboard or/and virtual mouse or/and virtual touchpad to designated area；
Infrared induction module：When sensing human body in the infrared ray that view field launches, by induction region in this infrared induction
Two-dimensional coordinate under module two-dimensional coordinate system is sent to processing module；
Processing module：Two-dimensional coordinate under respective two-dimensional coordinate system for the induction region sent according to all infrared induction modules,
It is calculated three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region, this three-dimensional coordinate is sent to control module；
Control module：Three-dimensional coordinate under projection module three-dimensional system of coordinate for the induction region that receiving processing module is sent, should
The three-dimensional coordinate that the projection module that three-dimensional coordinate is stored with memory module projects image is contrasted, if finding this induction region position
In projection image, then the three-dimensional coordinate according to this induction region produces input signal and is input to terminal；
Memory module：The three-dimensional coordinate of the image of storage projection module projection；
Described control module is further used for, the coarse adjustment parameter for view field orientation of receiving user's input, thick according to this
Adjust the view field of parameter adjustment projection module；
Or, control module is further used for, the fine tuning order of receiving user's input, the user that receiving processing module is sent afterwards
The three-dimensional coordinate on the summit of view field setting, according to this three-dimensional coordinate, calculates the fine tuning of the view field to projection module
Parameter, according to the view field of this fine tuning parameter adjustment projection module, and, the three-dimensional coordinate of the image that projection module is projected is deposited
Store up memory module.
2. device according to claim 1, it is characterised in that described control module is further used for, fine tuning parameter is deposited
Store up memory module, and, when one group of fine tuning parameter that user have selected memory module storage is detected, according to this fine tuning parameter
The view field of adjustment projection module.
3. device according to claim 1 is it is characterised in that described control module is further used for, receiving user's input
Projected color, according to this color adjust projection module view field color；
Or, the projection brightness parameter of receiving user's input, the brightness of the view field according to this parameter adjustment projection module.
4. device according to claim 1 is it is characterised in that described control module is further used for, when receiving user
After the order of the projected keyboard of input or/and mouse or/and touch pad, read keyboard or/and mouse from memory module or/and touch
Template image is sent to projection module, so that projection module projects keyboard or/and mouse to designated area or/and touches project
Picture.
5. device according to claim 1 is it is characterised in that described control module is further used for, when receiving user
After the startup order of input, send and start order to projection module, infrared induction module, processing module；Defeated when receiving user
After the shutdown command entering, send shutdown command to projection module, infrared induction module, processing module.
6. device according to claim 1 it is characterised in that described device be an independent peripheral device, with terminal it
Between connected by wired or wireless way；
Or, described device is embedded in terminal.
7. device according to claim 1 is it is characterised in that when described device is embedded in terminal, described device with
Described terminal shares CPU and memory module, and wherein, described processing module is located in CPU with control module.
8. a kind of data inputting method based on projection and infrared induction is it is characterised in that the method includes：
Projection module projects the image of dummy keyboard or/and virtual mouse or/and virtual touchpad to designated area；
When infrared induction module senses human body in the infrared ray that view field launches, determine induction region in this infrared induction
Two-dimensional coordinate under module two-dimensional coordinate system, wherein, the number at least two of infrared induction module；
Two-dimensional coordinate under respective two-dimensional coordinate system for the induction region according to the determination of all infrared induction modules, is calculated sense
Answer three-dimensional coordinate under projection module three-dimensional system of coordinate for the region；Three-dimensional by this three-dimensional coordinate and the image of projection module projection
Coordinate is contrasted, if finding, induction region is located in projection image, and the three-dimensional coordinate according to induction region produces input letter
Number it is input to terminal；
Methods described is further used for, when receiving the coarse adjustment parameter for view field orientation of user input, according to this
The view field of coarse adjustment parameter adjustment projection module；
Or, the fine tuning order of receiving user's input, the user's both hands finger being sensed according to each infrared induction module afterwards
Set the infrared ray of the apex transmitting of view field in user, determine the three-dimensional seat on the summit of view field that user sets
Mark, according to this three-dimensional coordinate, calculates the fine tuning parameter of the view field to projection module, according to this fine tuning parameter adjustment projective module
The view field of block.
9., it is characterised in that methods described is further used for, storage is calculated thin for method according to claim 8
Adjust parameter, and, when one group of fine tuning parameter that user have selected storage is detected, according to this fine tuning parameter adjustment projection module
View field.
10. method according to claim 8 is it is characterised in that methods described is further used for, the throwing of receiving user's input
Shadow color, adjusts the color of the view field of projection module according to this color；
Or, the projection brightness parameter of receiving user's input, the brightness of the view field according to this parameter adjustment projection module.
11. methods according to claim 8 it is characterised in that methods described is further used for, when receiving user input
Projected keyboard or/and mouse or/and touch pad order after, keyboard or/and mouse or/and touch pad image are sent to throwing
Shadow module, so that projection module projects keyboard or/and mouse or/and touch pad image to designated area.
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| CN105739672A (en) * | 2014-12-09 | 2016-07-06 | 深圳富泰宏精密工业有限公司 | Projection input system and method |
| CN106155423A (en) * | 2015-04-28 | 2016-11-23 | 长城汽车股份有限公司 | Vehicle-mounted laser projection key system and vehicle |
| CN105573434A (en) * | 2015-12-18 | 2016-05-11 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN106648235A (en) * | 2016-12-20 | 2017-05-10 | 美的智慧家居科技有限公司 | Projection touch system and integrated cabinet |
| CN107357431A (en) * | 2017-07-14 | 2017-11-17 | 信利光电股份有限公司 | A kind of touch control display apparatus and method for realizing three-dimensional touch function |
| CN107885356A (en) * | 2017-11-10 | 2018-04-06 | 无锡睿勤科技有限公司 | A kind of multi-functional realization method and system of the touch pad based on projection |
| CN108328558A (en) * | 2018-01-11 | 2018-07-27 | 北京微油科技服务有限公司 | A kind of self-service refueling method and device |
| CN108282682B (en) * | 2018-02-08 | 2020-10-30 | 深圳创维－Rgb电子有限公司 | Television and television control method |
| CN110221717B (en) * | 2019-05-24 | 2024-07-09 | 李锦华 | Virtual mouse driving device, gesture recognition method and device for virtual mouse |
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