CN108153428A - Laser-projection keyboard and its implementation - Google Patents
Laser-projection keyboard and its implementation Download PDFInfo
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- CN108153428A CN108153428A CN201810081163.5A CN201810081163A CN108153428A CN 108153428 A CN108153428 A CN 108153428A CN 201810081163 A CN201810081163 A CN 201810081163A CN 108153428 A CN108153428 A CN 108153428A
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- keyboard
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- projection
- light reflection
- reflection signal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention discloses a kind of implementation methods of laser-projection keyboard, which is characterized in that including：The light reflection signal that detection finger is formed when the dummy keyboard region being projected out taps；Judge that the light reflection signal continues the existing time whether in values；If so, going out the location information at finger tapping according to the light reflection signal identification, and then identify corresponding input.In addition, the invention also discloses a kind of laser-projection keyboards.Finger is placed on keyboard region during using the present invention, it can be achieved that without input through keyboard to rest without the effect for causing the misrecognition of laser keyboard and avoiding other regions that from cannot inputting.
Description
Technical field
The present invention relates to dummy keyboard field more particularly to a kind of laser-projection keyboard and its implementation.
Background technology
Universal with mobile phone and tablet apparatus such as computer, projected keyboard is got over as a kind of portable, novel input equipment
It is concerned by people come more.But there are many more need improvements to current projected keyboard.For example, current throwing
Since the infrared ray of its transmitting cannot be thoroughly close to the keyboard being projected out, so the finger of user must be hanging in shadow keyboard
, infrared ray otherwise will be blocked so as to be determined in input character.But we are often ridden over using finger during physical keyboard
Just do not have to reposition every time in this way on keyboard, if finger is vacantly above keyboard, it is desirable to carry out touch system and substantially can not possibly
, greatly reduce user's typing speed；In addition finger is vacantly easy to cause to hand discomfort above keyboard for a long time, it is unfavorable
In raising user experience.
In addition, when being inputted using existing projection keyboard, finger tapping is on the table without any feedback sense, user
It can just be confirmed whether to have carried out effective input after only watching screen and whether the content of input is correct, be unfavorable for improving
User experience.
Invention content
The technical problems to be solved by the invention are, provide a kind of laser-projection keyboard and its implementation, on the one hand
Can solve the problems, such as using existing laser-projection keyboard must hand be vacantly placed on above dummy keyboard, on the other hand can solve
The problem of certainly existing laser-projection keyboard input is without feedback.
In order to solve the above-mentioned technical problem, on the one hand, the embodiment provides a kind of realities of laser-projection keyboard
Existing method, including：The light reflection signal that detection finger is formed when the dummy keyboard region being projected out taps；Judge that the light is anti-
It penetrates signal and continues the existing time whether in values；If so, according to the light reflection signal identification finger tapping
The location information at place, and then it is identified as respective keys input.
Further, if the light reflection signal continues the existing time not in values, storage is removed
Light reflection signal, and the light reflection signal formed again is detected again.
Specifically, it is described to judge that light reflection signal continues whether the existing time includes judging that light is anti-in values
It penetrates signal and continues whether the existing time is less than 20 milliseconds.
Preferably, the location information according to light reflection signal identification finger tapping and then being identified as respective keys input
The step of including simultaneously identify multiple finger tappings location information so that identify respective keys input.
Further, the method, which further includes, is projected out a virtual touch area；It is virtual by what is be projected out described in triggering
The first switching key on keyboard switches to the virtual touch area.
Specifically, it is dynamic including the first mousebutton region of triggering formation left mouse button click to trigger the virtual touch area
Make, the second mousebutton region of triggering forms and clicks action, triggering third mousebutton region formation middle button of mouse by mouse right button
Click action.
Further, the method further includes：According to the location information at the light reflection signal identification finger tapping into
And start input feedback device after identifying respective keys input.
Further, the method further include calculate it is unidentified go out respective keys input time interval, and when described
Between interval when being more than prefixed time interval, close the power supply of the laser-projection keyboard.
On the other hand, the embodiment provides a kind of laser-projection keyboard, including：Laser-projection keyboard main body,
The laser-projection keyboard main body includes keyboard projection modules, grating module, judgment module, information acquisition module；The keyboard
Projection module is used to be projected out a dummy keyboard；The grating module is used to emit light to each of the dummy keyboard and press
On key, a light reflection signal is formed when finger is rested on the button；The judgment module is used to judge finger in virtual key
The light reflection signal that disk is formed when stopping continues the existing time whether in values；Described information acquisition module is used for
When continuing the existing time after the judgment module judges that light reflection signal generates less than preset value, believed according to the light reflection
Location information at number identification finger tapping, and then is identified as corresponding key-press input.
Further, the laser-projection keyboard main body further includes a removing module, for judging in the judgment module
When light reflection signal continues the existing time more than values, the light reflection signal formed is removed.
Further, the keyboard projection modules are additionally operable to be projected out a virtual touch area, setting on the dummy keyboard
The first switching key for switching to the virtual touch area is equipped with, is provided on the virtual touch area and switches to the void
Intend the second switching key of keyboard.
Specifically, the virtual touch area further includes the first mousebutton region, the second mousebutton region, third mouse
Key area is marked, when triggering the first mousebutton region, it is virtual to trigger described second for the action of response left mouse button click
During mousebutton region, the action clicked by mouse right button is responded, when triggering the third mousebutton region, responds middle button of mouse
The action of click.
Further, the laser-projection keyboard further includes an input feedback device, and the input feedback device is used for
The judgment module identifies one input feedback of output after effectively input.
Further, the laser-projection keyboard further includes a timing module, and the timing module is unidentified for calculating
Go out respective keys input time interval, and it is described it is unidentified go out respective keys input time interval be more than preset time between
Every when, cut off the power supply of the laser-projection keyboard.
Further, the laser-projection keyboard further includes bluetooth connection module, the laser-projection keyboard and external end
End equipment is communicated to connect by the bluetooth connection module；The bluetooth module opens simultaneously when starting the laser-projection keyboard
It is dynamic, and generate unique user and authorize login account.
The embodiment of the present invention has the following advantages that or advantageous effect：
The embodiment of the present invention detects whether to be inputted, and set using by identifying the upward movement of user's finger
One preset value, judge user's finger move downward and move upwards between time interval whether in the values, if
In the values, then judge that user has carried out effective input, if user's finger move downward and move upwards between time
Interval in the range, does not then identify this movement of user's finger no longer, until detecting the downward fortune of user's finger again
It is dynamic.
The technique effect that can reach：First, it can realize that user's finger when not inputting, can directly rest on keyboard
Without taking away or vacantly, solving finger when being inputted using existing laser keyboard must be vacantly caused for input area rest
Fatigue problem；Second, when can realize that laser keyboard is at least partially obscured or is partly pressed, other are not blocked or press
Part still can effectively be inputted.
In addition, the embodiment of the present invention sets an input feedback device in laser-projection keyboard, know when by the input of user
When Wei not input effectively, then start the input feedback device and give user one input feedback, so as to which user is made to know constantly
Whether the input of oneself is effective, improves user experience.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of laser-projection keyboard implementation method in an embodiment of the present invention；
Fig. 2 is the functional block diagram of laser-projection keyboard in an embodiment of the present invention；
Fig. 3 is the schematic diagram that laser-projection keyboard is projected out dummy keyboard in an embodiment of the present invention；
Fig. 4 is the signal that keyboard projection modules are projected out dummy keyboard and virtual touch area in an embodiment of the present invention
Figure；
The schematic diagram of virtual touch area in Fig. 5 an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Below with reference to the accompanying drawings the embodiment of the present invention is described.It is laser in an embodiment of the present invention referring to Fig. 1
The flow chart of projected keyboard implementation method, including：
Step S101：Start；
Step S102：The light reflection that detection finger is formed when the dummy keyboard region that keyboard projection modules are projected out taps
Signal；
S103：Judge whether to detect light reflection signal；
S104：If detecting, further judge that light reflection signal continues the existing time whether in values,
Or whether disappear in preset value time range；If light reflection signal is not detected, return to step S102 continues to detect；Light
The light that grid are launched is projected on each button of dummy keyboard, and a light reflection will be generated when the corresponding button of finger down
Signal, when finger lifts, because not blocking, light reflection blackout；
S105：Believe if the light reflection signal detected continues the existing time in values or the light reflection detected
It number disappears in default values, then the key information of finger key entry is calculated according to the information of the light reflection signal；
Usually, which is 0-20MS, and it is primary can about to tap keyboard for finger within this time range, therefore
Can by finger for a long time place on the virtual keyboard and attonity is considered as invalid input, so as to allow finger without input when
It is placed on the dummy keyboard and is rested and avoid generating erroneous input；
After laser-projection keyboard receives light reflection signal, you can learn the transmitting source information of the light reflection signal so as to right
The respective keys information that finger key enters should be calculated.
S106：Time existing for continuing when light reflection signal is not in values or the optical signal is from generating disappearance
Time interval in the preset time range when, then be judged to inputting in vain, remove the light reflection signal message of storage.
Further, after the light reflection signal message for removing storage, the light that return to step S101 detections are formed again is anti-
Penetrate signal, that is, when user places a finger above the time rested on keyboard more than preset time value range, such as 20MS
Afterwards, the action that no longer identification user lifts finger, so as to reduce the amount of calculation of System on Chip/SoC.
It should be noted that in an embodiment of the present invention, when finger taps downwards dummy keyboard corresponding button not
Input signal is generated, but input signal is generated by movement upward again after identifying that finger moves downward；Moreover, only
Moving upwards for finger is completed within a preset time interval, and the upward movement of the finger just is identified as effective signal inputs,
When finger move upwards do not complete within a preset time interval when, then the action for judging finger is invalid action, so as to
It rests without that will be manually placed on dummy keyboard during input without causing misrecognition, erroneous input.
In addition, in embodiments of the present invention, identify in prefixed time interval again after the moving downward of finger by identifying and be
It is no to move upwards to identify key entry information, even if by the barrier when dummy keyboard part being projected out is blocked by barrier
It is considered as moving downward for finger, but moving upwards, therefore barrier will not be hidden in values finger is not detected
Stopper point is identified as the input of finger, so as to influence that signal input is carried out on the part not being blocked.
Further, the location information of multiple finger tappings can be identified simultaneously in an embodiment of the present invention, and then
It identifies the corresponding button in the position, so as to improve the typing speed of dummy keyboard, improves user experience.
Further, a virtual touch area is also projected out in an embodiment of the present invention, the virtual touch area packet
Include the first mousebutton region, the second mousebutton region, third mousebutton region；Detect the region of finger down
When in one mousebutton region, the action of response left mouse button click detects the region of finger down in the second virtual mouse
When in key area, the action clicked by mouse right button is responded, detects the region of finger down in third mousebutton region
When, the action of response middle button of mouse click.
Further, in an embodiment of the present invention according to light reflection signal identification go out the location information of finger tapping into
And it identifies respective keys and starts input feedback device after keying in.In one embodiment, the input feedback device is one
Vibrator starts the vibrator after effective key in is identified, use is transferred to by desktop so as to generate a vibration signal
The finger end at family forms the feedback of input, so as to inform that user has carried out effective input in time, so as to improve user experience.
In another embodiment, which is a music player, i.e., plays and set when user effectively input
Fixed keypad tone.
It please refers to Fig.2, the laser-projection keyboard of the embodiment of the present invention includes laser-projection keyboard main body 2, laser projection key
Disc main body 2 includes keyboard projection modules 21, grating module 22, judgment module 23, information acquisition module 24.Keyboard projection modules 21
For being projected out a dummy keyboard, further, which is additionally operable to be projected out a virtual touch area.Grating
Module 22 is plane or three-dimensional grating generator, for emitting the dummy keyboard that light is projected to keyboard projection modules 21
Each button on.Judgment module 23 is for judging that light reflection signal generates duration, if the generation of light reflection signal is held
The continuous time is less than preset value, such as 20MS, then judgement in the key position corresponding to the light reflection signal once have
The key entry of effect；If the generation of light reflection signal is sustained for longer than preset value, illustrates finger in the preset value and had
Effect acts, therefore no longer identifies the action of the finger until the light reflection blackout of this generation.Information acquisition module 24 is used
In judgment module 23 judge light reflection signal generate duration be less than preset value when, according to the light reflection signal identification
Go out the location information of the button of finger tapping, and then according to the distribution situation of each button of preset dummy keyboard, identify finger
The information of practical key tap, so as to be identified as corresponding key-press input.
In one embodiment, keyboard projection modules 21 are laser projection module, and dummy keyboard is carried out using laser
Projection.
In one embodiment, described information acquisition module 24 is imaging sensor, for judging in judgment module 23
Light reflection signal continues the existing time less than preset value after generating when, finger tapping is gone out according to the light reflection signal identification
Key information, and then identify corresponding input.
With reference to figure 3, the keyboard projection modules 21 wherein set in laser-projection keyboard main body 2 are projected out dummy keyboard 211
Onto workbench 4.
In addition, please referring to Fig.4 and Fig. 5, keyboard projection modules 21 are projected out dummy keyboard 211 and virtual touch area 212.
The first switch key 2111 is provided on the dummy keyboard 211, first switch key 2011 is pressed and can be switched out one and virtual touch
Region 212 is controlled, the second switch key 2121 is provided on the virtual touch area 212, presses second switch key 2121, is inputted
Dummy keyboard 211 is switched to from virtual touch area 212.
The virtual touch area 212 includes the first mousebutton region 2122, the second mousebutton region 2123, third
Mousebutton region 2124；When detecting that the region of finger down is in the first mousebutton region 2122, left mouse button is responded
The action of click when detecting that the region of finger down is in the second virtual mouse key area 2123, responds right mouse button point
The action hit, when detecting that the region of finger down is in third mousebutton region 2124, response middle button of mouse is clicked dynamic
Make.
Further, the laser-projection keyboard described in a kind of preferable embodiment of the present invention is additionally provided with an input and returns
Device is presented, when laser-projection keyboard detects effective input through keyboard, starts the input feedback device, knows thereby using family
Road has carried out effective input, improves user experience.In one embodiment, the input feedback device is a vibrator,
I.e. when detecting effective input through keyboard, which exports a vibration signal, and passes through workbench 4 and be transmitted to user terminal, from
And user is made to know to have carried out effective input.In another embodiment, the input feedback device is played for an audio
Device, i.e., when detecting effective input through keyboard, which exports an audio signal, and user is made to know to have carried out effectively
Input.Further, the audio signal that user can be exported with free audio player.
In embodiment of the input feedback device for audio player, which can also be arranged on certainly
In external devices with audio playing function, for example, when the laser-projection keyboard in the present invention and mobile phone or tablet electricity
When brain is used cooperatively, user has carried out effective input by the laser-projection keyboard in the present invention, then can pass through corresponding mobile phone
Or tablet computer terminal plays keypad tone.
In addition, the laser-projection keyboard in the embodiment of the present invention further includes bluetooth connection module, the laser-projection keyboard
It is communicated to connect with external devices by the bluetooth connection module, the input on the laser-projection keyboard is sent to company
The terminal device connect；When starting the laser-projection keyboard, the bluetooth connection module is opened simultaneously, random start, and raw
Account is authorized into a unique user, which authorizes account only to limit a user and uses, and need password that could enter,
External other mobile terminals is avoided to swarm into suddenly, it is safe to use to influence user.
In external devices after correct password is inputted, external devices are thrown with the laser in the embodiment of the present invention
Shadow keyboard carries out communication input by bluetooth connection.When external devices move, external devices are implemented with the present invention
The communication between laser-projection keyboard in example is disconnected temporary, described outer when external devices no longer move
Connection will be established automatically again by connecing the communication between the laser-projection keyboard in terminal device and the embodiment of the present invention, not need to two
Secondary input password, if not wanting this external devices is allowed to connect automatically by bluetooth with current laser-projection keyboard, it is only necessary to
The Bluetooth system closed in external devices can disconnect.
Laser-projection keyboard and its implementation in the embodiment of the present invention, by identify the upward movement of user's finger come
Detect whether to be inputted, and set a preset value, judge user's finger move downward and move upwards between time interval
Whether in the values, if in the values, judge that user has carried out effective input, if user's finger to
Lower movement and time interval between moving upwards not in the range, then no longer this movement of identification user's finger, until again
It is secondary to detect moving downward for user's finger.Using the laser-projection keyboard and its implementation in the embodiment of the present invention：First,
User's finger can be realized when not inputting, can directly rest on the rest of input through keyboard region without taking away or vacantly,
Solving when being inputted using existing laser keyboard finger must hanging caused fatigue problem；Second, it can realize laser keyboard
When being at least partially obscured or partly being pressed, other parts for not being blocked or pressing still can effectively be inputted.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
To be or may not be physically separate, the component shown as unit may or may not be physics list
Member, you can be located at a place or can also be distributed in multiple network element.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
Technical solution is stated substantially in other words to embody the part that the prior art contributes in the form of software product, it should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and (can be personal computer, server or the network equipment etc.) so that computer equipment is used to perform each implementation
Method described in certain parts of example or embodiment.
Embodiments described above does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (15)
1. a kind of implementation method of laser-projection keyboard, which is characterized in that including：
The light reflection signal that detection finger is formed when the dummy keyboard region being projected out taps；
Judge that the light reflection signal continues the existing time whether in values；
If so, according to the location information at the light reflection signal identification finger tapping, and then it is identified as respective keys input.
2. the implementation method of laser-projection keyboard as described in claim 1, which is characterized in that if the light reflection signal continues
The existing time not in values, then removes the light reflection signal of storage, and detects the light reflection formed again again
Signal.
3. the implementation method of laser-projection keyboard as claimed in claim 1 or 2, which is characterized in that the judgement light reflection letter
Number continue whether the existing time includes judging that whether light reflection signal continues the existing time less than 20 in values
Millisecond.
4. the implementation method of laser-projection keyboard as described in claim 1, which is characterized in that described to be known according to light reflection signal
The location information of other finger tapping so the step of be identified as respective keys input including at the same identify the positions of multiple finger tappings
Confidence ceases and then identifies respective keys input.
5. the implementation method of laser-projection keyboard as described in claim 1, which is characterized in that the method, which further includes, to be projected out
One virtual touch area；The virtual touch-control is switched to by the first switching key on the dummy keyboard that is projected out described in triggering
Region.
6. the implementation method of laser-projection keyboard as claimed in claim 5, which is characterized in that the triggering virtual touch area
Left mouse button click action is formed including the first mousebutton region of triggering, the second mousebutton region of triggering forms right mouse button
Click action, triggering third mousebutton region form middle button of mouse click action.
7. the implementation method of laser-projection keyboard as described in claim 1, which is characterized in that the method further includes：According to
Location information at the light reflection signal identification finger tapping and then start input feedback dress after identifying respective keys input
It puts.
8. the implementation method of laser-projection keyboard as described in claim 1, which is characterized in that the method further includes calculating not
It identifies the time interval of respective keys input, and when the time interval is more than prefixed time interval, closes the laser
The power supply of projected keyboard.
9. a kind of laser-projection keyboard, which is characterized in that including：Laser-projection keyboard main body, the laser-projection keyboard main body
Including keyboard projection modules, grating module, judgment module, information acquisition module；
The keyboard projection modules are used to be projected out a dummy keyboard；
The grating module is for emitting light to each button of the dummy keyboard, when finger is rested on the button
When form a light reflection signal；
The judgment module is used to judge that the light reflection signal lasting existing time that finger is formed when dummy keyboard stops is
It is no in values；
Described information acquisition module is less than for continuing the existing time after the judgment module judges that light reflection signal generates
During preset value, according to the location information at the light reflection signal identification finger tapping, and then it is identified as corresponding key-press input.
10. laser-projection keyboard as claimed in claim 9, which is characterized in that the laser-projection keyboard main body further includes one
Module is removed, for when the judgment module judges that light reflection signal continues the existing time more than values, removing
The light reflection signal formed.
11. laser-projection keyboard as claimed in claim 9, which is characterized in that the keyboard projection modules are additionally operable to be projected out
One virtual touch area is provided with the first switching key for switching to the virtual touch area on the dummy keyboard, described
The second switching key for switching to the dummy keyboard is provided on virtual touch area.
12. laser-projection keyboard as claimed in claim 11, which is characterized in that the virtual touch area further includes the first mouse
Key area, the second mousebutton region, third mousebutton region are marked, when triggering the first mousebutton region, response
The action that left mouse button is clicked when triggering the second virtual mouse key area, responds the action clicked by mouse right button, triggers
During the third mousebutton region, the action of response middle button of mouse click.
13. laser-projection keyboard as claimed in claim 9, which is characterized in that the laser-projection keyboard further includes an input
Feedback device, the input feedback device are used for the one input feedback of output after the judgment module identifies effectively input.
14. laser-projection keyboard as claimed in claim 9, which is characterized in that the laser-projection keyboard further includes a timing
Module, the timing module be used to calculating it is unidentified go out respective keys input time interval, and it is described it is unidentified go out it is corresponding
When the time interval of key-press input is more than prefixed time interval, the power supply of the laser-projection keyboard is cut off.
15. laser-projection keyboard as claimed in claim 9, which is characterized in that the laser-projection keyboard further includes bluetooth company
Connection module, the laser-projection keyboard are communicated to connect with external devices by the bluetooth connection module；Start described sharp
The bluetooth module starts simultaneously during light projected keyboard, and generates unique user and authorize login account.
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| CN201810081163.5A CN108153428B (en) | 2018-01-26 | 2018-01-26 | Laser projection keyboard and implementation method thereof |
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| CN201810081163.5A CN108153428B (en) | 2018-01-26 | 2018-01-26 | Laser projection keyboard and implementation method thereof |
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| CN111314520A (en) * | 2020-03-19 | 2020-06-19 | Oppo广东移动通信有限公司 | Terminal equipment |
| CN111813272A (en) * | 2020-05-29 | 2020-10-23 | 维沃移动通信有限公司 | Information input method and device and electronic equipment |
| CN112083831A (en) * | 2020-08-21 | 2020-12-15 | 欧菲微电子技术有限公司 | Key identification method and device based on laser projection keyboard |
| CN112629142A (en) * | 2019-09-24 | 2021-04-09 | 青岛海尔电冰箱有限公司 | Refrigerator virtual key operation processing method and refrigerator |
| CN114467064A (en) * | 2019-09-24 | 2022-05-10 | Bsh家用电器有限公司 | Appliance operation |
| CN114821861A (en) * | 2022-04-12 | 2022-07-29 | 珠海格力电器股份有限公司 | Intelligent door lock control method and device and intelligent door lock |
| WO2022188429A1 (en) * | 2021-03-11 | 2022-09-15 | 京东方科技集团股份有限公司 | Keyboard |
| CN116129565A (en) * | 2023-02-07 | 2023-05-16 | 浙江德施曼科技智能股份有限公司 | Unlocking method and device of intelligent door lock, equipment and storage medium |
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| CN112629142A (en) * | 2019-09-24 | 2021-04-09 | 青岛海尔电冰箱有限公司 | Refrigerator virtual key operation processing method and refrigerator |
| CN114467064A (en) * | 2019-09-24 | 2022-05-10 | Bsh家用电器有限公司 | Appliance operation |
| CN111314520A (en) * | 2020-03-19 | 2020-06-19 | Oppo广东移动通信有限公司 | Terminal equipment |
| CN111314520B (en) * | 2020-03-19 | 2021-09-21 | Oppo广东移动通信有限公司 | Terminal equipment |
| CN111813272A (en) * | 2020-05-29 | 2020-10-23 | 维沃移动通信有限公司 | Information input method and device and electronic equipment |
| CN112083831A (en) * | 2020-08-21 | 2020-12-15 | 欧菲微电子技术有限公司 | Key identification method and device based on laser projection keyboard |
| WO2022188429A1 (en) * | 2021-03-11 | 2022-09-15 | 京东方科技集团股份有限公司 | Keyboard |
| CN114821861A (en) * | 2022-04-12 | 2022-07-29 | 珠海格力电器股份有限公司 | Intelligent door lock control method and device and intelligent door lock |
| CN114821861B (en) * | 2022-04-12 | 2023-08-11 | 珠海格力电器股份有限公司 | Intelligent door lock control method and device and intelligent door lock |
| CN116129565A (en) * | 2023-02-07 | 2023-05-16 | 浙江德施曼科技智能股份有限公司 | Unlocking method and device of intelligent door lock, equipment and storage medium |
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