CN103294284A - Electronic device and writing device - Google Patents
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- CN103294284A CN103294284A CN201310195559XA CN201310195559A CN103294284A CN 103294284 A CN103294284 A CN 103294284A CN 201310195559X A CN201310195559X A CN 201310195559XA CN 201310195559 A CN201310195559 A CN 201310195559A CN 103294284 A CN103294284 A CN 103294284A
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Abstract
The invention discloses an electronic device and a writing device. The electronic device comprises a display screen, N rangefinders and a signal processor. The rangefinders are arranged at different positions on the display screen, and are used for emitting electromagnetic signals to the writing device to obtain N first range parameters between the N rangefinders and the writing end of the writing device and to obtain N second range parameters between the N rangefinders and the erasing end of the writing device. N >/=3, and N is an integer. The signal processor is used for analyzing the N first range parameters and the N second range parameters, and obtaining a first space range between the writing end and the display screen and a second space range between the erasing end and the display screen.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of electronic equipment and a kind of writing device.
Background technology
At present, along with development of electronic technology, when man-machine interaction, increasing information input mode has appearred, for example button input, touch-screen input, mouse input etc. serves as the designed electronic equipment in basis with these interactive modes, also has been applied in education, science and technology etc. field.
Exemplify several equipment that are applied in education sector below.
First kind: wall surface integrated formula interactive electronic white board.
Wall surface integrated formula interactive electronic white board is formed by writing operation screen and large screen display panel.Write operation screen and be positioned at a side of large screen display panel, formed jointly by touch screen, controller, display, big screen display screen or projector and projection screen and computing machine, split screen device.The user when closely writing or operating, use compare with large-screen display board relative less or equal-sized sharpness higher write the operation screen, the student watches big screen display screen or projection at a distance, solved and when jumbotron is submitted a written statement to a higher authority write operation, be subjected to problem and the user of the restriction of user's height on giant-screen, closely to write operation, light is dazzling, and human body stops the problem of student's sight line and projection ray.
Second kind: a kind of audiovisual teaching equipment.
This equipment specifically is a kind of integrated large screen flat plate display multimedia combined type blackboard.Opened photoelectricity wireless mouse four parts of box-like blackboard, giant-screen flat pannel display multimedia play system, the wireless public address system of blackboard frame type loudspeaker and band teacher's pointer function is made up of translation.It is behind the common writing blackboard of the first generation and second generation multimedia overhead projector and electronic whiteboard, the third generation blackboard for education based on flat-panel monitor and normal blackboard combination that occurs first.
The third: interactive liquid crystal electron blank.
This electronic whiteboard comprises a support body, is arranged on the electronic whiteboard main body on the support body, the electronic whiteboard main body comprises a LCDs, LCDs connects a microprocessor system, the microprocessor system connects a human-computer interaction device, and the microprocessor system shows information by the picture of human-computer interaction device control LCDs.
From the above equipment of enumerating such as these electronic whiteboards as can be seen, have plenty of and adopt direct contact display screen to carry out the information input, the employing wired connection that has operation screen carries out information input.All can not implementation space information input.
Summary of the invention
The invention provides a kind of electronic equipment and a kind of writing device, only can adopt direct contact display screen to carry out the information input in order to solve the electronic whiteboard that exists in the prior art, perhaps adopt wired connection operation screen to carry out the information input, and technical matters that can not implementation space information input.
On the one hand, the present invention provides following technical scheme by the application's a embodiment:
A kind of electronic equipment comprises: display screen; N stadimeter, be separately positioned on the diverse location of display screen, be used for electromagnetic signals and give writing device, with the N between the writing end that obtains a described N stadimeter and described writing device first distance parameter, and N the second distance parameter between end of wiping that obtains a described N stadimeter and described writing device, wherein, described N 〉=3, and be integer; Signal processor is used for analyzing described N first distance parameter and described N second distance parameter, obtains first space length between described writing end and described display screen, and described second space length of wiping between end and described display screen.
On the other hand, the present invention provides by another embodiment of the application:
A kind of writing device, described writing device is used for as the described electronic equipment of above-mentioned technical scheme, and described writing device comprises writing end, wipes end, and is in described writing end and the described body of wiping between the end of writing; Described writing end is provided with first reflection unit, in the described N of the corresponding reflected back of N the signal stadimeter that described first reflection unit can be launched the N in the electronic equipment stadimeter; The described end of wiping is provided with second reflection unit, in the described N of the corresponding reflected back of described N the signal stadimeter that described second reflection unit can be launched described N stadimeter.
One or more technical schemes in the technique scheme have following technique effect or advantage:
In one or more embodiment of the present invention, in order to realize the input of air information, be used realization by electronic equipment and writing device, for electronic equipment, by at display screen at least three stadimeters being set, combine with two reflection units that arrange on the writing device, send signal by at least three stadimeters in the space, reflect this signal by two reflection units, with this space length parameter that detects two reflection units, further obtain the space length parameter of writing device; By signal processor this parameter is handled then, obtained the locus of writing device.When writing device is write, can be according to top principle, the movement locus of real-time detection writing device, and then obtain the font that writing device is write, the implementation space input.Therefore, this programme can provide the equipment of a kind of implementation space input, realizes aerial operation to make things convenient for the user.
Description of drawings
Figure 1A is the structural representation of blank pen in the embodiment of the present application;
Figure 1B is the structural representation with 5 buttons of blank pen in the embodiment of the present application;
Fig. 1 C is the another kind of structural representation of blank pen in the embodiment of the present application;
Fig. 1 D is the another kind of structural representation that the blank pen has 5 buttons in the embodiment of the present application;
Fig. 2 is the structural representation of electronic equipment and blank pen in the embodiment of the present application;
Fig. 3 is the synoptic diagram of signal processor processes flow process in the embodiment of the present application;
Fig. 4 writes the synoptic diagram of font for blank pen in the embodiment of the present application;
Fig. 5 wipes the synoptic diagram of font for blank pen in the embodiment of the present application.
Embodiment
Only can adopt direct contact display screen to carry out the information input in order to solve the electronic whiteboard that exists in the prior art, perhaps adopt wired connection operation screen to carry out the information input, and can not the implementation space technical matters of information input, the embodiment of the invention has proposed a kind of electronic equipment and a kind of writing device.
Below by accompanying drawing and specific embodiment technical solution of the present invention is described in detail, be to be understood that concrete feature among the embodiment of the invention and the embodiment is the detailed explanation to technical solution of the present invention, rather than to the restriction of technical solution of the present invention, under the situation of not conflicting, the technical characterictic among the embodiment of the invention and the embodiment can make up mutually.
In the embodiment of the present application, electronic equipment and writing device are used, and realize aerial input operation.In the embodiment of the present application one, brochure write device at first.
Embodiment one:
In the embodiment of the present application, a kind of writing device has been described.
Concrete, writing device can be used for the electronic equipment of the embodiment of the present application, to realize aerial input.Certainly, writing device specifically is to have writing function device.
Writing device comprises writing end, wipes end, and is in writing end and wipes the body of writing between the end.
Writing end is provided with first reflection unit, in N stadimeter of the corresponding reflected back of N signal that first reflection unit can be launched the N in the electronic equipment stadimeter.
Wipe end and be provided with second reflection unit, in N stadimeter of the corresponding reflected back of N signal that second reflection unit can be launched N stadimeter.
In the embodiment of the present application, writing device uses and has writing function blank pen for example.
Under request in person referring to Figure 1A, the blank pen has two ends, a blank pen tip M is writing end; The terminal N of blank pen pen is and wipes end; In addition, the body H between a blank pen tip M and the terminal L of pen is the body of writing of blank pen.
Concrete, pen tip M and the terminal L of pen are provided with reflection unit, and this reflection unit can be device for reflection of electromagnetic waves, in N the stadimeter of the corresponding reflected back of N signal that the N in the electronic equipment stadimeter can be launched.
In addition, write and have model selection button SW1 and three gears on the body, these three gears are respectively: write mode shelves P1, stop mode shelves P2 and erasing mode shelves P3.The person of writing can select these three buttons to operate accordingly arbitrarily.
Wherein:
Write mode shelves P1 is specially for the control writing device and is in the gear of write mode, and when writing device is in write mode following time, writing end sends first laser, and first laser has first color.
Erasing mode shelves P3 is specially for the control writing device and is in the gear of erasing mode, when writing device is in erasing mode following time, wipes end and sends second laser, and second laser has second color different with first color.
Stop mode shelves P2 is specially the gear that is in the pattern of quitting work for the control writing device.
Further, the model selection button SW1 switching of can between these three gears, sliding arbitrarily.When the user need select between these three gears, can stir model selection button SW1, it is toggled it to corresponding gear get final product.
Give an example with write mode, when the blank pen was used for writing, SW1 toggled it to the P1 shelves with the model selection button, made the blank pen be in write mode.
Give an example with the blank pen among Figure 1A, in the time of need using the blank pen to write as if the user, just model selection button SW1 can be toggled it to the P1 shelves.When the blank pen was in write mode, the user namely can use the blank pen to write at display screen 303, but this ways of writing is only applicable to the situation that the blank pen has been got ready and will have been write in display screen 303.If the blank pen is being in write mode following time, the blank pen also is not in the display screen 303, this moment is if the edge of process display screen 303 moves into the position (for example the position at display screen 303 centers is oriented to writing position) of writing, so at the edge of display screen 303 to the position at display screen 303 centers, will stay the vestige of writing, and this vestige is unwanted.
For fear of above-mentioned situation occurring, in the design of blank pen, also has following improvement, specifically please referring to following several schemes.
First kind of scheme:
Increase the function of model selection button SW1.Model selection button SW1 is set to both can stir, button that again can button.When model selection button SW1 stirs, model selection button SW1 can be toggled it to P1, P2, any one gear of P3 carries out model selection, the blank pen has been adjusted into corresponding pattern.Give an example with write mode, when the blank pen was adjusted into write mode, the blank pen of this moment can't be write, if need the blank pen to write, can press model selection button SW1, triggered the blank pen and write.
Like this, just the blank pen can be moved into the center of display screen 303, press model selection button SW1 again and write, avoid occurring top unnecessary vestige.
In addition, if the time that the blank pen pauses is long or move than after big a blank position, when the person of writing begins to carry out the information input again from the screen position, possibly can't remember the accurate space writing plane of original blank pen.At this moment, the person of writing need press model selection button SW1 again, triggers again and writes, and reorientate the space writing plane, begins follow-up space write operation.If from a blank side, only need press model selection button SW1 again and then can begin input.
Second kind of scheme:
The button b that the button a that the increase triggering is write and triggering are wiped.
Please referring to Figure 1B, in Figure 1B, except all buttons with Figure 1A, button a and button b have also additionally been increased.
Give an example with write mode, when the blank pen was adjusted into write mode, the blank pen of this moment can't be write, if need the blank pen to write, can press the button a, triggered the blank pen and write.
This scheme and first kind of scheme are similar, uniquely different be, the function that the triggering of model selection button SW1 is write uses button a to replace realizing, the function that the triggering of model selection button SW1 is wiped uses button b to replace realizing, but the function of these two kinds of schemes is the same, can both avoid occurring top unnecessary vestige.
Certainly, if the time that the blank pen pauses is long or move than after big a blank position, way and the top first kind of scheme of this moment are similar, and this then repeats no more again.
The third scheme:
Increase to trigger the button that the button write and triggering are wiped, and these two buttons are integrated into write mode shelves P1 and erasing mode shelves P2 respectively.The difference part of this scheme and top second kind of scheme is, button is integrated together, and is convenient to operation.But the implementation process of two kinds of schemes is the same, does not repeat them here.
In addition, write body except top structure, following such structure can also be set.
Namely write three buttons are set on the body, shown in Fig. 1 C, these three buttons are respectively: write button S1, stop button S2 and wipe button S3.
Wherein, described write button S1 is specially for the described writing device of control and is in the button of write mode, and when described writing device is in described write mode following time, described writing end sends described first laser;
The described button S2 that wipes is specially for the described writing device of control and is in the button of erasing mode, and when described writing device is in described erasing mode following time, the described end of wiping sends described second laser;
Described stop button S3 is specially the button that is in the pattern of quitting work for the described writing device of control.
Further, when the user selects, as long as press corresponding button arbitrarily, namely can select corresponding button between these three patterns.
Give an example with write mode, when the blank pen is used for writing, press write button S1, then can make the blank pen be in write mode.
Give an example with the blank pen among Fig. 1 C, in the time of need using the blank pen to write as if the user, just can press write button S1.When the blank pen was in write mode, the user namely can use the blank pen to write at display screen 303, but this ways of writing is only applicable to the situation that the blank pen has been got ready and will have been write in display screen 303.If the blank pen is being in write mode following time, the blank pen also is not in the display screen 303, this moment is if the edge of process display screen 303 moves into the position (for example the position at display screen 303 centers is oriented to writing position) of writing, so at the edge of display screen 303 to the position at display screen 303 centers, will stay the vestige of writing, and this vestige is unwanted.
For fear of this situation, just can on the basis of Fig. 1 C, increase by two buttons again, a button triggers to be write, and a button triggers to be wiped.Suppose that triggering the button of writing is button c, triggering the button of wiping is button d, shown in Fig. 1 D.
At this moment, if need write the time, at first press S1, make it be in write mode, press the button c again and write, like this just can avoid occurring top vestige.
The operation of wiping and the class of operation of writing are seemingly.
If the time that the blank pen pauses is long or move than after big a blank position, way and the top second kind of scheme of this moment are similar, and this then repeats no more again.
In addition, blank pen herein also can be integrated in two buttons respectively among write mode button S1 and the erasing mode button S2.
On the whole; shape and structure for the blank pen; with and the pen setting of button on one's body; several situations were introduced above the embodiment of the present application had only been enumerated; and various changes and modification that the blank pen is carried out; do not breaking away within the spirit and scope of the present invention, also should belong within protection scope of the present invention.
Below, specifically introduce the usage of blank pen, and and electronic equipment cooperate introduction.
Certainly, the writing device in the embodiment of the present application is not limited in use electronic equipment in this application, also can use in other equipment.
Embodiment two:
In the embodiment of the present application, a kind of electronic equipment has been described.
Concrete, this electronic equipment comprises display screen 303, N stadimeter, and signal processor.Wherein, N 〉=3, and be integer.
Concrete, N stadimeter, be arranged on the diverse location of display screen 303, be used for electromagnetic signals and give writing device, with first distance parameter of the N between the writing end that obtains N stadimeter and writing device, and N stadimeter of acquisition and writing device wipe N second distance parameter between end.
Signal processor be used for to be analyzed N first distance parameter and N second distance parameter, obtains first space length of 303 of writing end and display screens, and wipes and hold and second space length of 303 of display screens.
Further, signal processor is connected between N stadimeter and the display screen 303.And after detecting first space length and second space length, can obtain the locus of writing device according to first space length and second space length.
If N=3, with 3 stadimeters for example, these 3 stadimeters are arranged on the diverse location of display screen 303 so, as shown in Figure 2, corner location at the display screen 303 of electronic equipment has been arranged 3 stadimeters, and these 3 stadimeters are three points of A, B, C among Fig. 2, can launch electromagnetic wave and detect.These three stadimeters have superhigh precision, accurately measuring distance.Signal processor is in electronic equipment internal and display screen 303 has annexation.
In addition, also have writing device among Fig. 2, writing device specifically is to have writing function device, and writing device uses and has writing function blank pen for example in the present embodiment.
A device for reflection of electromagnetic waves is respectively placed at terminal (namely wiping end) the L place of the pen tip of blank pen (being writing end) M and pen, 3 stadimeters can send electromagnetic wave signal in real time, two device for reflection of electromagnetic waves placing on the blank pen can return electromagnetic wave in real time, utilize Multiple-Frequency Continuous Wave phase method or additive method, can record the distance between the device for reflection of electromagnetic waves at a stadimeter and blank two ends.Like this, each stadimeter can detect two distance values (less, two bigger distance values; Perhaps two equal distance values, these two distance values are respectively the space length parameter at a blank two ends), 3 stadimeters can detect 3 small distance values and 3 big distance values.3 small distance values are one group of data, are the space measuring distance data of a device for reflection of electromagnetic waves point of blank pen.3 big distances are one group of data, are the space measuring distance data of another device for reflection of electromagnetic waves point of blank pen.
Stadimeter is passed to signal processor with the data that detect by wired or wireless form and is handled.After signal processor processes, namely can obtain the real-time locus of last two device for reflection of electromagnetic waves of blank pen, just pen tip or the terminal real-time locus of pen.
Further, when the measuring distance data of two groups of spaces of signal processor processes, can pass through a series of process, specific as follows.
At first, signal processor specifically comprises N amplification treating apparatus, A/D conversion equipment 301 and converting means 302.
Further, N amplification treating apparatus is connected between N stadimeter and the A/D conversion equipment 301, and N amplification treating apparatus and N stadimeter connect one to one; Converting means 302 is connected with A/D conversion equipment 301.
Concrete, N amplification treating apparatus, be connected between N stadimeter and the A/D conversion equipment 301, and N amplification treating apparatus and N stadimeter connect one to one, be used for receiving and amplifying N first distance parameter and N second distance parameter, corresponding N first amplification data and N second amplification data of obtaining.
A/D conversion equipment 301 is used for N first amplification data and N second amplification data being carried out data-switching, corresponding N first translation data and N second translation data of obtaining.
Converting means 302 is connected with A/D conversion equipment 301, is used for receiving and conversion N first translation data and N second translation data, obtains first space length and second space length.
Further, signal processor specifically is used for:
When detecting writing device and be in write mode, in the first first current locus of detecting writing device constantly, and with the first constantly different second second current locus of detecting writing device constantly.
Based on the first current locus and the second current locus, obtain the spatial position change amount of writing device
According to the spatial position change amount, detect and obtain the space motion path of writing device between first moment and second moment.
According to space fortune merit track, the acquisition space motion path is mapped to the mapping track on the display screen 303, and will shine upon track in display screen 303 demonstrations.
In addition, electronic equipment also comprises monitoring device, and monitoring device is used for:
When writing device is in write mode, obtain first space length from signal processor, and the distance value of judging the first space length correspondence is whether in default distance range.
When the distance value of the first space length correspondence is not in default distance range, determine writing device at the end position of writing of display screen 303.
Give an example with N=3, please referring to Fig. 3, be the structural representation of electronic equipment package unit and writing device associating.
3 stadimeters (stadimeter A, stadimeter B and stadimeter C) are in order to detect the space measuring distance data of device for reflection of electromagnetic waves M and device for reflection of electromagnetic waves L.And 3 amplification treating apparatus (amplify treating apparatus A, amplify treating apparatus B and amplify treating apparatus C) are connected between 3 stadimeters and the A/D conversion equipment 301, and N amplification treating apparatus and N stadimeter connect one to one.Converting means 302 is connected with A/D conversion equipment 301, sends connected display screen 303 to after data are handled.
Concrete, signal processor amplifies through 3 amplification modules the data that detect to be handled, and after the A/D modular converter carries out data-switching, make up virtual 3D physical coordinates system and the data that collect are rotated computings such as matrixing and translation matrixing under virtual 3D coordinate system.At last, through the comprehensive computing of signal processor, calculate the real-time locus of last two device for reflection of electromagnetic waves of blank pen, just the real-time locus of pen tip M or the terminal L of pen.
In sum, each device of the electronic equipment of describing according to the application namely can be calculated pen tip and the terminal real-time locus of pen of blank pen.
Further, above-described is the detailed process of calculating the real-time locus of the pen tip M of blank pen and the terminal L of pen, and is in when writing state when the blank pen, how to obtain the handwriting trace of blank pen, and the principle that shows at display screen 303, namely as follows.
Write the realization principle:
Signal processor can be in the first first current locus (this locus has comprised the locus of pen tip M and the terminal L of pen of blank pen) that detect the blank pen constantly when detecting the blank pen and be in write mode.When if the blank pen is write in the space, this moment, signal processor also can detect the second current locus of blank pen.According to these two locus, can obtain the space motion path of blank pen.According to space fortune merit track, can obtain space motion path and be mapped to mapping track on the display screen 303, this mapping track is the blank pen and is about to write track on display screen 303.
If the stroke to write, then following description.
When write mode, at first, it is pen tip M that signal processor can be determined last two device for reflection of electromagnetic waves middle distance display screens, the 303 nearer reflection units of blank pen, by the space motion track of pen tip M and the displacement of front and back, can realize aerial effectively stroke writing, the monitoring of starting to write and lifting pen.
And a blank nib place can send visible laser by straight line, and after signal processor calculated the locus of pen tip M or the terminal L of pen, can determine the blank pen from system side was O over against the position of screen
2, the screen location when realizing writing.Please locate referring to the screen among Fig. 2.
In addition, laser is radiated at the O on the display screen 303
2The position, the prompting person of writing writing position where.
At this, also such a case can appear, namely after user's blank pen is set to write mode, with the terminal L of pen and the pen tip M reversing of position that can send laser, make that an end-to-end distance of blank pen is nearer from display screen 303, and pen tip M from display screen 303 away from, at this moment, because it is pen tip M that signal processor can be determined last two device for reflection of electromagnetic waves middle distance display screens, the 303 nearer reflection units of blank pen, therefore, signal processor can be defined as pen tip M with the terminal L of pen of blank pen, and accepts writing of the terminal L of pen.
Further, when using the terminal L of pen to write, particular location for the ease of the prompting user writing, at this moment, the terminal L of pen also can adopt the emission laser identical with pen tip M, perhaps send modes such as visible light, in display screen 303 location, be used for pointing out user's blank pen concrete writing position.
First stroke is started to write and is lifted the pen monitoring:
Be illustrated with the blank pen with model selection button SW1, as follows:
At blank model selection button SW1 of handwriting design, before preparation is write, stir model selection button SW1 with hand, make the blank pen then be in write mode, and a blank pen tip M place can send visible laser by straight line, is radiated at the O on display screen 303 screens
2The position, the O on the screen
2The position is the writing position of screen just.Simultaneously, system side can judge that pen tip M locus just writes reference position for a blank space, presses model selection button SW1 from this locus and begins to write, and the movement locus when writing end is exactly effective stroke writing.Concrete, system side is that the comprehensive detection according to stadimeter and signal processor draws when detecting the movement locus of blank pen.
In addition, the movement locus in this space can be mapped on the display screen 303, and shows at display screen 303, and display screen 303 will be from the O on the screen
2The position begins, and effective stroke writing occurs.
When system monitoring arrives O
2When a mobile plane of formation (3 not coplanar points) of screen, just determine a space writing plane, if monitor pen tip M retreat shift out this plane certain the distance (this distance value, debug to set according to reality, the application does not limit), can be defined as the space and lift a position, the first stroke stroke writing finishes.So far, an effective stroke writing is finished.
The process of this moment is finished by the monitoring device of electronic equipment, and when the blank pen was in write mode, monitoring device can obtain the space length of pen tip M and display screen 303 from signal processor, and judges that this space length is whether in the distance range of presetting.When its not in default distance range the time, can determine that then the blank pen lifted pen, and expression the first stroke stroke writing finishes, and the position of lifting pen is the position of writing end.
Second stroke is started to write and is lifted the pen monitoring:
When system monitoring advances again when falling into previous distance range to pen tip M, then be defined as again starting to write, begin second the beginning of writing, next the pen tip M motion track of ordering is exactly effective stroke writing; When system monitoring shifts out this distance range again to pen tip M, then be defined as lifting pen again, second stroke writing finishes.So far, second effective stroke writing finished.
So move in circles down, then one or more effectively font then can be presented on the display screen 303, as shown in Figure 4.And writing in the embodiment of the present application is not limited in writing of font, can also refer to wait other operations for drawing, and the principle of drawing is similar with the principle of writing font, and the application repeats no more.
Certainly, if the time that the blank pen pauses is long or move than after big a blank position, when the person of writing begins to carry out the information input again from the screen position, possibly can't remember the accurate space writing plane of original blank pen.At this moment, the person of writing need press model selection button SW1 again, triggers the action of writing again,, and reorientate the space writing plane, begin follow-up space write operation.If from a blank side, only need press model selection button SW1 again and then can begin input.
In addition, because the blank pen except writing, if after display screen 303 is write wrongly written character, can also be wiped, the specific descriptions of wiping principle are as follows.
Wipe the realization principle:
This moment, the blank pen need be adjusted to erasing mode, namely stirred model selection button SW1, was slid into erasing mode shelves P3, and when erasing mode, the terminal L of blank pen pen can send the visible laser that is different from the write mode color by straight line, is radiated at the O on the screen
2The position, the O on the screen
2The position namely is the erasure location of screen.Simultaneously, after system side calculates the locus of pen tip M and the terminal L of pen, can judge that the blank pen wipes the position O that rectifies screen
2, the screen location O when realizing wiping
2, then, system side is with O
2The position is benchmark, according to the movement locus of blank pen, realizes the blackboard eraser function, and the wrongly written character on the display screen 303 is wiped.As shown in Figure 5, wiping the synoptic diagram of font for the blank pen.
In addition, be radiated at O on the screen
2Where the position can also point out eraser's erasure location.
Certainly, under erasing mode, with pen tip M and the terminal L reversing of position of pen of blank pen, Ci Shi pen tip M can be used as and wipes the end use so as if the user.And can adopt the mode of sending with the terminal L same laser of pen, or send the mode of visible light, the particular location that the prompting user need wipe.
And for the blank pen, by the position probing to two device for reflection of electromagnetic waves of blank pen, can detect locus and the real-time motion track of blank pen in real time, pass through the selection of the operator scheme of a blank pen body H again, finished aerial input and the aerial erase operation of information, Here it is realizes the method that air information is imported.Adopt the demonstration electronic equipment of this method, can make the user be sitting in the electronic equipment front, need not to walk about, very novel and the air information input of whiteboard operating pen realization easily and air information erase operation.In addition, signal processor can also be visited screen display matrix data in the DDR video memory by operational order, and the screen image information in the video memory is saved as the BMP picture, thereby realizes the preservation of screen display content is handled.
By one or more embodiment of the present invention, can be achieved as follows technique effect:
In one or more embodiment of the present invention, in order to realize the input of air information, be used realization by electronic equipment and writing device, for electronic equipment, by at display screen at least three stadimeters being set, combine with two reflection units that arrange on the writing device, send signal by at least three stadimeters in the space, reflect this signal by two reflection units, with this space length parameter that detects two reflection units, further obtain the space length parameter of writing device; By signal processor this parameter is handled then, obtained the locus of writing device.When writing device is write, can be according to top principle, the movement locus of real-time detection writing device, and then obtain the font that writing device is write, the implementation space input.Therefore, this programme can provide the equipment of a kind of implementation space input, realizes aerial operation to make things convenient for the user.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to process flow diagram and/or the block scheme of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block scheme and/or square frame and process flow diagram and/or the block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computing machine or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded on computing machine or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computing machine or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame in the instruction that computing machine or other programmable devices are carried out.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. an electronic equipment is characterized in that, comprising:
Display screen;
N stadimeter, be separately positioned on the diverse location of display screen, be used for electromagnetic signals and give writing device, with the N between the writing end that obtains a described N stadimeter and described writing device first distance parameter, and N the second distance parameter between end of wiping that obtains a described N stadimeter and described writing device, wherein, described N 〉=3, and be integer;
Signal processor is used for analyzing described N first distance parameter and described N second distance parameter, obtains first space length between described writing end and described display screen, and described second space length of wiping between end and described display screen.
2. electronic equipment as claimed in claim 1 is characterized in that, described signal processor specifically comprises N amplification treating apparatus, A/D conversion equipment and converting means;
Described N amplification treating apparatus, be connected between a described N stadimeter and the described A/D conversion equipment, and described N amplification treating apparatus and a described N stadimeter connect one to one, be used for receiving and amplifying described N first distance parameter and described N second distance parameter, corresponding described N first amplification data and described N second amplification data of obtaining;
Described A/D conversion equipment is used for described N first amplification data and described N second amplification data being carried out data-switching, corresponding described N first translation data and described N second translation data of obtaining;
Described converting means is connected with described A/D conversion equipment, is used for receiving and the described N of conversion first translation data and described N second translation data, obtains described first space length and described second space length.
3. electronic equipment as claimed in claim 1 is characterized in that, described signal processor also is used for:
According to described first space length and described second space length, obtain the locus of described writing device.
4. as the described electronic equipment of the arbitrary claim of claim 1-3, it is characterized in that described signal processor also is used for:
When detecting described writing device and be in write mode, in the first first current locus of detecting described writing device constantly, and with the described first constantly different second second current locus of detecting described writing device constantly;
Based on the described first current locus and the described second current locus, obtain the spatial position change amount of described writing device
According to described spatial position change amount, detect and obtain the space motion path of described writing device between described first moment and described second moment;
According to described space fortune merit track, obtain described space motion path and be mapped to mapping track on the described display screen, and described mapping track is shown at described display screen.
5. electronic equipment as claimed in claim 1 is characterized in that, described electronic equipment also comprises monitoring device, and described monitoring device is used for:
When described writing device is in write mode, obtain described first space length from described signal processor, and the distance value of judging the described first space length correspondence is whether in default distance range;
When the distance value of the described first space length correspondence is not in described default distance range, determine described writing device at the end position of writing of described display screen.
6. writing device, described writing device is used for as the described electronic equipment of the arbitrary claim of claim 1-5, it is characterized in that described writing device comprises writing end, wipes end, and is in described writing end and the described body of wiping between the end of writing;
Described writing end is provided with first reflection unit, in the described N of the corresponding reflected back of N the signal stadimeter that described first reflection unit can be launched the N in the electronic equipment stadimeter;
The described end of wiping is provided with second reflection unit, in the described N of the corresponding reflected back of described N the signal stadimeter that described second reflection unit can be launched described N stadimeter.
7. writing device as claimed in claim 6 is characterized in that, described writing has the model selection button on the body, be respectively: write mode shelves, stop mode shelves and erasing mode shelves.
8. writing device as claimed in claim 7 is characterized in that,
Described write mode shelves are specially for the described writing device of control and are in the gear of write mode, and when described writing device is in described write mode following time, described writing end sends first laser, and described first laser has first color;
Described erasing mode shelves are specially the gear that is in erasing mode for the described writing device of control, when described writing device is in described erasing mode following time, the described end of wiping sends second laser, and described second laser has second color different with described first color;
Described stop button shelves are specially the gear that is in the pattern of quitting work for the described writing device of control.
9. writing device as claimed in claim 6 is characterized in that, described writing also has write button on the body, stop button and wipe button.
10. writing device as claimed in claim 9 is characterized in that,
Described write button is specially for the described writing device of control and is in the button of write mode, and when described writing device is in described write mode following time, described writing end sends described first laser;
The described button of wiping is specially for the described writing device of control and is in the button of erasing mode, and when described writing device is in described erasing mode following time, the described end of wiping sends described second laser;
Described stop button is specially the button that is in the pattern of quitting work for the described writing device of control.
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| CN103294284B (en) | 2016-09-07 |
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