CN105786289B - A kind of method and electronic equipment reducing screen input nonlinearities - Google Patents
A kind of method and electronic equipment reducing screen input nonlinearities Download PDFInfo
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- CN105786289B CN105786289B CN201610200350.1A CN201610200350A CN105786289B CN 105786289 B CN105786289 B CN 105786289B CN 201610200350 A CN201610200350 A CN 201610200350A CN 105786289 B CN105786289 B CN 105786289B
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- 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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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Abstract
The present invention provides a kind of methods and electronic equipment for reducing screen input nonlinearities, applied to the screen input equipment for including at least the first input screen and the second input screen, the electromagnetic wave signal generated on the second input screen by obtaining time writer, successively calculate time writer first position corresponding with actual value coordinate on second input screen, and the second position corresponding with theoretical value coordinate, and according to the difference coordinate that first position coordinate and second position coordinate generate identify the handwriting respectively on each position coordinates carry out difference correction, and correction position coordinates are shown on the first input screen, when solving double screen stack process, electronic ink screen is for the interference of electromagnetic screen sensitivity and in handwriting input text on electromagnetic screen, the problems such as writing position that electronic ink screen is shown shifts.
Description
Technical field
The present invention relates to electronic technology field, more specifically, it relates to a kind of method for reducing screen input nonlinearities and
Electronic equipment.
Background technique
Electronic ink screen (eink) as the display screen for studying up electronic edition books, document, there is big visual angle to read,
The clear superiorities such as environmentally protective, protection eyesight, super low-power consumption.
Electromagnetic induction touching technique is the relatively early technology for being applied to portable IT product, mainly emits electromagnetism using time writer
Wave, and time writer square position on the screen is sensed by reception device, and then positioned.Until today, due to electromagnetism
Induction type touch screen has low cost, and structure is simple, is conducive to handwriting input text, can also integrate with other touch screens
The advantages that, it is very popular.
Currently, electronic ink screen (eink) and electromagnetic screen are combined by the prior art, the second of electronic equipment is extended
Screen makes electronic equipment other than having advantage of the electromagnetic screen conducive to handwriting input text, additionally it is possible to pass through electronic ink screen
(eink) process that unlock point opens application is saved；However due to the stack process of both electronic ink screen (eink) and electromagnetic screen,
It causes electromagnetic screen sensitivity decrease and in handwriting input text on electromagnetic screen, the writing position that electronic ink screen is shown is sent out
The problems such as raw offset.
Summary of the invention
In view of this, a kind of method and electronic equipment for reducing screen input nonlinearities provided by the invention, to overcome in electricity
When both sub- ink screen and electromagnetic screen stack process, caused by electromagnetic screen sensitivity decrease and on electromagnetic screen handwriting input text
When word, the problems such as writing position that electronic ink screen is shown shifts.
To achieve the above object, the invention provides the following technical scheme:
A method of reducing screen input nonlinearities, which is characterized in that be applied to screen input equipment, the screen input
Equipment includes at least the first input screen and the second input screen, which comprises
Obtain the electromagnetic wave signal that time writer generates on second input screen；
According to the electromagnetic wave signal, the time writer is calculated corresponding with actual value first on second input screen
Position coordinates, and calculate the time writer second position corresponding with theoretical value coordinate on second input screen；
Calculate the difference coordinate of the first position coordinate Yu the second position coordinate；
According to the difference coordinate, identify the handwriting on each position coordinates carry out difference correction, generate correspond to it is described
The correction position coordinates of each point on person's handwriting；
The correction position coordinates of each point on the person's handwriting described in the first input screen display.
Preferably, the electromagnetic wave signal for obtaining time writer and generating on second input screen, specifically includes:
According to the difference of the first signal and second signal, acquires the time writer and generated on second input screen
Electromagnetic wave signal；Wherein, first signal is the signal strength that first input screen works independently, the second signal
The signal strength to work independently for second input screen.
Preferably, described according to the electromagnetic wave signal, calculate the time writer on second input screen with reality
The corresponding first position coordinate of actual value, specifically includes:
According to the electromagnetic wave signal, be calculated the first inclination angle between the time writer and second input screen and
With the mutual remaining refraction angle in first inclination angle；
According to the refraction angle and the height of first input screen, the time writer is calculated in second input
First position corresponding with actual value coordinate on screen.
Preferably, described according to the electromagnetic wave signal, it is calculated between the time writer and second input screen
The first inclination angle and with the mutual remaining refraction angle in first inclination angle, specifically include:
According to the electromagnetic wave signal second input screen horizontally and vertically on generate respectively it is more
Adjacent two in the line of magnetic induction, be calculated the first inclination angle between the time writer and second input screen and with institute
State the mutual remaining refraction angle in the first inclination angle.
Preferably, described according to the electromagnetic wave signal, calculate the time writer on second input screen with reason
By corresponding second position coordinate is worth, specifically include:
According to the electromagnetic wave signal, be calculated the first inclination angle between the time writer and second input screen and
With the mutual remaining refraction angle in first inclination angle；
According to the refraction angle, incidence angle corresponding with the refraction angle is calculated, wherein the incidence angle is inputted from first
Screen is incident；
The time writer is calculated in the contact point that extended line according to the incidence angle intersects with second input screen
The second position corresponding with theoretical value coordinate on second input screen.
Preferably, described according to the difference coordinate, identify the handwriting on each position coordinates carry out difference correction, generate
Corresponding to the correction position coordinates of each point on the person's handwriting, specifically include:
According to the difference coordinate, corresponding difference coordinate is increased separately on each position coordinates on person's handwriting, and
Generate the correction position coordinates of each point corresponded on the person's handwriting.
Preferably, the screen input equipment includes at least: electronic ink screen and electromagnetic screen.
A kind of electronic equipment characterized by comprising
Receiving module, the electromagnetic wave signal generated on the second input screen for obtaining time writer；
First computing module, for calculating the time writer on second input screen according to the electromagnetic wave signal
First position corresponding with actual value coordinate；
Second computing module, for calculating the time writer on second input screen according to the electromagnetic wave signal
The second position corresponding with theoretical value coordinate；
Third computing module, for calculating the difference coordinate of the first position coordinate Yu the second position coordinate；
Processing module, each position coordinates on identifying the handwriting according to the difference coordinate carry out difference correction, and
Generate the correction position coordinates of each point corresponded on the person's handwriting；
Display module, the correction position coordinates of each point on the person's handwriting described in the first input screen display.
Preferably, the receiving module includes:
Receiving submodule obtains the time writer described second for the difference according to the first signal and second signal
The electromagnetic wave signal generated on input screen；Wherein, first signal is the signal strength that first input screen works independently,
The second signal is the signal strength that second input screen works independently.
Preferably, first computing module includes:
Refraction angle computing module, for calculating the time writer and second input screen according to the electromagnetic wave signal
Between the first inclination angle and with the mutual remaining refraction angle in first inclination angle；
First position coordinate calculation module calculates institute for the height according to the refraction angle and first input screen
State with actual value corresponding first position coordinate of the time writer on second input screen.
Preferably, the refraction angle computing module includes:
Refraction angle computational submodule, in the horizontal direction of second input screen and hanging down according to the electromagnetic wave signal
It adjacent two in a plurality of line of magnetic induction that histogram generates respectively upwards, calculates between the time writer and second input screen
The first inclination angle and with the mutual remaining refraction angle in first inclination angle.
Preferably, second computing module, comprising:
Incidence angle computing module, for calculating the time writer and second input in the refraction angle computing module
When the first inclination angle between screen is in the mutually refraction angle of remaining relationship, calculate incidence angle corresponding with the refraction angle, wherein described in enter
Firing angle is incident from the first input screen；
Second position coordinate calculation module, for when the incidence angle computing module calculates incidence angle, according to described in
The contact point that the extended line of incidence angle intersects with second input screen calculates the time writer on second input screen
The second position corresponding with theoretical value coordinate.
Preferably, the processing module includes:
Horizontal coordinate processing module is used for each position coordinates according to the difference coordinate, on the person's handwriting
Increase corresponding differential horizontal coordinate in horizontal coordinate, the correction position level for generating each point corresponded on the person's handwriting is sat
Mark；
Vertical coordinate processing module is used for each position coordinates according to the difference coordinate, on the person's handwriting
Increase corresponding differential vertical coordinate on vertical coordinate, the correction position for generating each point corresponded on the person's handwriting is vertically sat
Mark.
Preferably, the electronic equipment includes at least: electronic ink screen and electromagnetic screen.
It can be seen via above technical scheme that compared with prior art, the present invention provides a kind of input of reduction screen is dry
The method and electronic equipment disturbed, the electromagnetic wave signal generated on the second input screen by obtaining time writer, successively described in calculating
Time writer first position corresponding with actual value coordinate on second input screen, and calculating time writer are defeated described second
Enter to shield the upper second position corresponding with theoretical value coordinate, and is sat according to the difference that first position coordinate and second position coordinate generate
The each position coordinates marked on identifying the handwriting carry out difference correction, generate the correction position of each point corresponded on the person's handwriting
Coordinate is simultaneously shown on the first input screen, so that electronic ink screen is sensitive for electromagnetic screen when solving double screen stack process
The problems such as interference of degree and in handwriting input text on electromagnetic screen, the writing position that electronic ink screen is shown shifts.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of method flow diagram for reducing screen input nonlinearities provided in an embodiment of the present invention；
Fig. 2 is the method flow diagram of another reduction screen input nonlinearities provided in an embodiment of the present invention；
Fig. 3 is a kind of electronic devices structure schematic diagram for reducing screen input nonlinearities provided in an embodiment of the present invention；
Fig. 4 is the electronic devices structure schematic diagram of another reduction screen input nonlinearities provided in an embodiment of the present invention；
Fig. 5 is the electronic devices structure schematic diagram of another reduction screen input nonlinearities provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of method flow diagrams for reducing screen input nonlinearities, please refer to attached drawing 1, the side
Method specifically includes the following steps:
Step 101: obtaining the electromagnetic wave signal that time writer generates on second input screen.
Step 102: according to the electromagnetic wave signal, calculate the time writer on second input screen with actual value pair
The first position coordinate answered.
Specifically, the first position coordinate is after the refraction of the first input screen, the time writer is defeated described second
Enter position coordinates corresponding to the actual value for the contact point that the electromagnetic wave signal generated on screen intersects with second input screen.
Step 103: according to the electromagnetic wave signal, calculate the time writer on second input screen with theoretical value pair
The second position coordinate answered.
Specifically, the second position coordinate is when reflecting without the first input screen, the time writer is described second
Position coordinates corresponding to the theoretical value for the contact point that the electromagnetic wave signal generated on input screen intersects with second input screen.
Step 104: calculating the difference coordinate of the first position coordinate Yu the second position coordinate.
Specifically, the difference coordinate includes differential horizontal coordinate and differential vertical coordinate.
Step 105: according to the difference coordinate, identify the handwriting on each position coordinates carry out difference correction, generate pair
The correction position coordinates of each point on person's handwriting described in Ying Yu.
Step 106: the correction position coordinates of each point on the person's handwriting described in the first input screen display.
Specifically, being reduced in the method for screen input nonlinearities disclosed in the embodiment of the present invention, time writer is first obtained in electricity
The electromagnetic wave signal generated on magnetic cup, and according to the electromagnetic wave signal calculate the time writer on second input screen with
The corresponding first position coordinate of actual value, and calculate time writer second corresponding with theoretical value on second input screen
Coordinate is set, later, according to the difference coordinate of the first position coordinate and the second position coordinate that are calculated, is identified the handwriting
On each position coordinates carry out difference correction, generate correspond to the person's handwriting on each point correction position coordinates, and
It is shown on the first input screen, and then solves before screen input equipment includes at least the first input screen and the second input screen
It puts, the word that first input screen causes the second input screen sensitivity decrease and is shown on first input screen
The problem of mark position shifts.
The embodiment of the invention provides the method flow diagrams that another reduces screen input nonlinearities, please refer to attached drawing 2, described
Method specifically includes the following steps:
Step 201: obtaining the electromagnetic wave signal that time writer generates on second input screen；
Specifically, the electromagnetic wave signal is the difference according to the first signal and second signal, acquire；Wherein,
First signal is the signal strength that first input screen works independently, and the second signal is the second input screen list
The signal strength solely to work.
Step 202: according to the electromagnetic wave signal, being calculated between the time writer and second input screen
One inclination angle and with the mutual remaining refraction angle in first inclination angle.
Specifically, first inclination angle is according to the electromagnetic wave signal in the horizontal direction of second input screen and vertical
It adjacent two in a plurality of line of magnetic induction generated respectively on direction, is calculated；Wherein, second input screen is by according to water
The receiving coil grid for putting down the vertical regular arrangement of both direction is formed, and is inputted to time writer described second when coil-induced
When the electromagnetic wave signal generated on screen, according to the signal strength of the horizontally and vertically upper a plurality of line of magnetic induction generated,
The tilt angle of time writer Yu second input screen is calculated.
Secondly, it is corresponding that first inclination angle is calculated according to first inclination angle and the mutual remaining theorem of right angled triangle
Refraction angle.
Step 203: according to the refraction angle and the height of first input screen, the time writer is calculated described
First position corresponding with actual value coordinate on second input screen.
Specifically, the first position coordinate is calculated according to the height of first input screen and trigonometric function,
Wherein, the height of first input screen is fixed, and is stored in advance；
The first position coordinate changes according to the tilt angle of the time writer and first input screen and is become
Change.
Step 204: according to the refraction angle, calculate incidence angle corresponding with the refraction angle, wherein the incidence angle from
First input screen is incident.
Specifically, the incidence angle is calculated, and then pass through right angled triangle according to the law of refraction and the refraction angle
Mutual remaining theorem calculate the angle between the time writer and first input screen, as user holds an angle.
Step 205: institute is calculated in the contact point that the extended line according to the incidence angle intersects with second input screen
State with theoretical value corresponding second position coordinate of the time writer on second input screen.
Specifically, the second position coordinate is the contacting points position coordinate with second input screen without refraction；
When the first position coordinate changes and changes according to the tilt angle of the time writer and first input screen, institute
It states second position coordinate and change in location also occurs.
Step 206: calculating the difference coordinate of the first position coordinate Yu the second position coordinate.
Step 207: according to the difference coordinate, increasing separately corresponding difference on each position coordinates on person's handwriting
Coordinate, and generate the correction position coordinates of each point corresponded on the person's handwriting.
Specifically, when the angle between the time writer and second input screen is definite value, for the time writer
The position coordinates of each point on the person's handwriting generated on first input screen, the difference coordinate being calculated are homogeneous
Together；At this point, the position coordinates of each point on the person's handwriting can directly carry out the increase of difference by the difference coordinate, in turn
Obtain the correction position coordinates of each point corresponded on the person's handwriting.
Step 208: the correction position coordinates of each point on the person's handwriting described in the first input screen display.
Specifically, the correction position coordinates of each point on the person's handwriting of the first input screen display are that user is logical
Cross it is identical hold an angle, on first input screen carry out handwriting input one section of person's handwriting.
Involved first input screen is electronic ink screen, second input screen in above-mentioned steps 201-208
For electromagnetic screen.
In the method for reducing screen input nonlinearities disclosed in the embodiment of the present invention, first obtains time writer and produced on electromagnetic screen
Raw electromagnetic wave signal, the electromagnetic wave signal first pass through denoising in advance, later, according to described in electromagnetic wave signal calculating
The first inclination angle between time writer and second input screen and with its mutual remaining refraction angle, according to the refraction angle and described the
The height of one input screen calculates time writer first position corresponding with actual value coordinate on second input screen, then
Refraction angle obtained by calculation and index meter calculate the incidence angle that the time writer contacts first input screen, at this point,
When the contact point that extended line according to the incidence angle intersects with second input screen calculates the time writer without refraction,
The second position corresponding with theoretical value coordinate on second input screen, calculates the first position coordinate and described second
The difference coordinate of position coordinates, and according to the difference coordinate identify the handwriting respectively on each point for being generated in same incidence angle
It sets and increases corresponding difference coordinate on coordinate, and then generate the corresponding correction position coordinates with each point on the person's handwriting, and
It is inputted described first and corrects position coordinates described in screen display, first input screen being related in the method is electronics
Ink screen, second input screen are electromagnetic screen, so as to pass through the line of magnetic induction in electromagnetic screen in person's handwriting aligning
Signal strength obtain the first inclination angle, refraction angle and incidence angle between time writer and electromagnetic screen, and then more accurate position
Position coordinates of the time writer on electromagnetic screen generated electromagnetic screen when both having solved electronic ink screen and electromagnetic screen stack process
Noise signal the problem of influencing, and solve the problems, such as that the writing position being shown on the electronic ink screen shifts.
The embodiment of the invention provides a kind of electronic devices structure schematic diagrames for reducing screen input nonlinearities, please refer to attached drawing
3, the electronic equipment includes:
Receiving module 301, the first computing module 302, the second computing module 303, third computing module 304, processing module
305 and display module 306；
Wherein, the receiving module 301, the electromagnetic wave signal generated on the second input screen for obtaining time writer；
First computing module 302, for it is defeated described second to calculate the time writer according to the electromagnetic wave signal
Enter first position corresponding with the actual value coordinate on screen；
Second computing module 303, for it is defeated described second to calculate the time writer according to the electromagnetic wave signal
Enter the second position corresponding with the theoretical value coordinate on screen；
The third computing module 304, for calculating the difference of the first position coordinate Yu the second position coordinate
Coordinate；
The processing module 305, each position coordinates on identifying the handwriting according to the difference coordinate carry out difference
Correction, and generate the correction position coordinates of each point corresponded on the person's handwriting；
The display module 306, the correction position of each point on the person's handwriting described in the first input screen display
Set coordinate.
In the electronic equipment for reducing screen input nonlinearities disclosed in the embodiment of the present invention, the receiving module 301 is first obtained
The electromagnetic wave signal for taking time writer to generate on second input screen, according to the electromagnetic wave signal, described first calculates mould
Block 302 calculates with actual value corresponding first position coordinate of the time writer on second input screen, meanwhile, described
Two computing modules 303 calculate with theoretical value corresponding second position coordinate of the time writer on second input screen, institute
Third computing module 304 is stated to sit according to the first position coordinate and the second position coordinate calculating difference being calculated
Mark, the processing module 305 according to the difference coordinate, identify the handwriting on each position coordinates carry out difference correction respectively,
The correction position coordinates of each point corresponded on the person's handwriting are generated, and the correction position of each point on the person's handwriting is sat
Mark is shown on first input screen by the display module 306, and then is solved and included at least in screen input equipment
Under the premise of first input screen and the second input screen, first input screen cause the second input screen sensitivity decrease and
The problem of writing position being shown on first input screen shifts.
Some possible application scenarios that the technical solution of 4 pairs of embodiment of the present invention is related to reference to the accompanying drawing are illustrated
It introduces.Fig. 4 is the electronic devices structure schematic diagram of another reduction screen input nonlinearities provided in an embodiment of the present invention.
As shown in Fig. 4 citing, when electromagnetic screen and electronic ink screen be combined with each other, when stack process, user uses time writer
Handwriting input is carried out on the electronic ink screen, the time writer can issue corresponding initial electromagnetic wave signal, at this point, due to
Electronic ink screen can generate interference to the electromagnetic wave signal that time writer generates, therefore the electronic equipment can be first to the time writer
The operation that the initial electromagnetic wave signal of generation is denoised, when by the way that electronic ink screen and electromagnetic screen individually working in advance
The signal of generation is stored, and two kinds of signals prestored is enabled to carry out subtraction calculations, obtains the electricity finally obtained on electromagnetic screen
Magnetostatic wave signal such as generates 6 at this point, the electromagnetic screen electromagnetic wave signal after denoising based on the received, generates a plurality of line of magnetic induction
The line of magnetic induction, and be distributed in the vertical and horizontal directions, the signal strength and electricity of the line of magnetic induction adjacent according to two of them
The height of sub- ink screen can be calculated in the case where user holds the identical situation of an angle, be refracted to electromagnetism through electronic ink screen
The difference that the position of any point in person's handwriting on screen and needs are corrected, at this point, the electronic equipment can be according to this
Difference carries out difference correction to each point in the same person's handwriting held and write under an angle, and by each point of the person's handwriting after correction
Position is shown on electronic ink screen, so as to eliminate electronic ink in electronic ink screen and electromagnetic screen stack process
Water screen to the interference of electromagnetic screen outside, additionally it is possible to the problem of correcting electronic ink screen oneself height difference bring person's handwriting position deviation.
The embodiment of the invention provides the electronic devices structure schematic diagrames that another reduces screen input nonlinearities, please refer to attached
Fig. 5, the electronic equipment include:
Receiving module 301, the first computing module 302, the second computing module 303, third computing module 304, processing module
305 and display module 306；
Wherein, the receiving module 301 includes:
Receiving submodule 3011 obtains the time writer described for the difference according to the first signal and second signal
The electromagnetic wave signal generated on second input screen；Wherein, first signal is the signal that first input screen works independently
Intensity, the second signal are the signal strength that second input screen works independently.
First computing module 302 includes: refraction angle computing module 3021 and first position coordinate calculation module 3022；
Wherein, the refraction angle computing module 3021, for calculating the time writer and institute according to the electromagnetic wave signal
State the first inclination angle between the second input screen and with the mutual remaining refraction angle in first inclination angle；
Specifically, the refraction angle computing module 3021 includes: refraction angle computational submodule 30211, for according to described in
Electromagnetic wave signal second input screen horizontally and vertically on phase in a plurality of line of magnetic induction that generates respectively
Adjacent two, calculate the first inclination angle between the time writer and second input screen and with first inclination angle mutually remaining refraction
Angle.
The first position coordinate calculation module 3022, for the height according to the refraction angle and first input screen
Degree, calculates with actual value corresponding first position coordinate of the time writer on second input screen.
Second computing module 303 includes: incidence angle computing module 3031 and second position coordinate calculation module 3032；
Wherein, the incidence angle computing module 3031, for calculating the electricity in the refraction angle computing module 3021
When the first inclination angle between magnetic pen and second input screen is in the refraction angle of mutual remaining relationship, calculate corresponding with the refraction angle
Incidence angle, wherein the incidence angle is incident from the first input screen；
The second position coordinate calculation module 3032, for calculating incidence angle in the incidence angle computing module 3031
When, the contact point that the extended line according to the incidence angle intersects with second input screen calculates the time writer described
The second position corresponding with theoretical value coordinate on two input screens.
The processing module 305 includes: horizontal coordinate processing module 3051 and vertical coordinate processing module 3052；
Wherein, the horizontal coordinate processing module 3051 is used for according to the difference coordinate, each on the person's handwriting
Increase corresponding differential horizontal coordinate in the horizontal coordinate of point position coordinates, generates rectifying for each point corresponded on the person's handwriting
Positive position horizontal coordinate；
The vertical coordinate processing module 3052, for each point according to the difference coordinate, on the person's handwriting
It sets and increases corresponding differential vertical coordinate on the vertical coordinate of coordinate, generate the correction position of each point corresponded on the person's handwriting
Set vertical coordinate.
First input screen being related in above-mentioned electronic equipment is electronic ink screen, and second input screen is electromagnetism
Screen.
In the electronic equipment for reducing screen input nonlinearities disclosed in the embodiment of the present invention, when the receiving module 301 is logical
Difference of the receiving submodule 3011 according to the first signal and second signal is crossed, obtains the time writer on second input screen
When the electromagnetic wave signal of generation, the refraction angle computing module 3021 in the computing module 302 calculates son by refraction angle
Module 30211 calculates described according to adjacent two signal strengths in a plurality of line of magnetic induction in the electromagnetic wave signal
The first inclination angle between time writer and second input screen and with the mutual remaining refraction angle in first inclination angle, later, described the
One position coordinates computing module 3022 calculates the time writer in institute according to the refraction angle and the height of first input screen
State first position corresponding with the actual value coordinate on the second input screen；At this point, the folding in second computing module 303
Incidence angle corresponding with the refraction angle, the second position is calculated according to the refraction angle in firing angle computing module 3031
Coordinate calculation module 3032 calculates second where the contact point that the refraction angle extended line intersects with second input screen
Position coordinates, the first position coordinate and second position coordinate being calculated according to described in, the third computing module 304 calculate
Difference coordinate between them, horizontal coordinate processing module 3051 and vertical coordinate processing module in the processing module 305
3052 respectively according to the difference coordinate, increases in the horizontal coordinate and vertical coordinate of each position coordinates on the person's handwriting
Add corresponding differential horizontal coordinate and differential vertical coordinate, the final correction position for generating each point corresponded on the person's handwriting
Coordinate, the correction position coordinates include horizontal coordinate and vertical coordinate, and display module 306 is by each point on the person's handwriting
Correction position coordinates are shown that first input screen being related in the electronic equipment is on first input screen
Electronic ink screen, second input screen are electromagnetic screen, so as to pass through the magnetic strength in electromagnetic screen in person's handwriting aligning
The signal strength of line is answered to obtain the first inclination angle, refraction angle and incidence angle between time writer and electromagnetic screen, and then more accurate
It located position coordinates of the time writer on electromagnetic screen, to electromagnetic screen when both having solved electronic ink screen and electromagnetic screen stack process
The problem of noise signal of generation influences, but solve that the writing position being shown on the electronic ink screen shifts asks
Topic.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of method for reducing screen input nonlinearities, which is characterized in that be applied to screen input equipment, the screen input is set
It is standby to include at least the first input screen and the second input screen, which comprises
Obtain the electromagnetic wave signal that time writer generates on second input screen；
According to the electromagnetic wave signal, time writer first position corresponding with actual value on second input screen is calculated
Coordinate, and calculate the time writer second position corresponding with theoretical value coordinate on second input screen；
Calculate the difference coordinate of the first position coordinate Yu the second position coordinate；
According to the difference coordinate, identify the handwriting on each position coordinates carry out difference correction, generate correspond to the person's handwriting
On each point correction position coordinates；
The correction position coordinates of each point on the person's handwriting described in the first input screen display；
Wherein, described according to the electromagnetic wave signal, calculate the time writer on second input screen with actual value pair
The first position coordinate answered, specifically includes:
According to the electromagnetic wave signal, be calculated the first inclination angle between the time writer and second input screen and with institute
State the mutual remaining refraction angle in the first inclination angle；
According to the refraction angle and the height of first input screen, the time writer is calculated on second input screen
First position corresponding with actual value coordinate.
2. the method according to claim 1, wherein the acquisition time writer generates on second input screen
Electromagnetic wave signal, specifically include:
According to the difference of the first signal and second signal, the electricity that the time writer generates on second input screen is acquired
Magnetostatic wave signal；Wherein, first signal is the signal strength that first input screen works independently, and the second signal is institute
State the signal strength that the second input screen works independently.
3. being calculated described the method according to claim 1, wherein described according to the electromagnetic wave signal
The first inclination angle between time writer and second input screen and with the mutual remaining refraction angle in first inclination angle, specifically include:
According to the electromagnetic wave signal second input screen horizontally and vertically on a plurality of magnetic that generates respectively
Adjacent two in the line of induction, the first inclination angle between the time writer and second input screen is calculated and with described
The mutual remaining refraction angle in one inclination angle.
4. calculating the electromagnetism the method according to claim 1, wherein described according to the electromagnetic wave signal
With theoretical value corresponding second position coordinate of the pen on second input screen, specifically includes:
According to the electromagnetic wave signal, be calculated the first inclination angle between the time writer and second input screen and with institute
State the mutual remaining refraction angle in the first inclination angle；
According to the refraction angle, incidence angle corresponding with the refraction angle is calculated, wherein the incidence angle enters from the first input screen
It penetrates；
The time writer is calculated in institute in the contact point that extended line according to the incidence angle intersects with second input screen
State the second position corresponding with the theoretical value coordinate on the second input screen.
5. the method according to claim 1, wherein described according to the difference coordinate, identify the handwriting on it is each
Point position coordinates carry out difference correction, generate the correction position coordinates of each point corresponded on the person's handwriting, specifically include:
According to the difference coordinate, corresponding difference coordinate is increased separately on each position coordinates on person's handwriting, and generate
Correction position coordinates corresponding to each point on the person's handwriting.
6. any one of -5 the method according to claim 1, which is characterized in that the screen input equipment includes at least:
Electronic ink screen and electromagnetic screen.
7. a kind of electronic equipment characterized by comprising
Receiving module, the electromagnetic wave signal generated on the second input screen for obtaining time writer；
First computing module, for according to the electromagnetic wave signal, calculate the time writer on second input screen with
The corresponding first position coordinate of actual value；
Second computing module, for according to the electromagnetic wave signal, calculate the time writer on second input screen with
The corresponding second position coordinate of theoretical value；
Third computing module, for calculating the difference coordinate of the first position coordinate Yu the second position coordinate；
Processing module, each position coordinates on identifying the handwriting according to the difference coordinate carry out difference correction, and generate
Correction position coordinates corresponding to each point on the person's handwriting；
Display module, the correction position coordinates of each point on the person's handwriting described in the first input screen display；
Wherein, first computing module includes:
Refraction angle computing module, for calculating between the time writer and second input screen according to the electromagnetic wave signal
The first inclination angle and with the mutual remaining refraction angle in first inclination angle；
First position coordinate calculation module calculates the electricity for the height according to the refraction angle and first input screen
With actual value corresponding first position coordinate of the magnetic pen on second input screen.
8. electronic equipment according to claim 7, which is characterized in that the receiving module includes:
Receiving submodule obtains the time writer in second input for the difference according to the first signal and second signal
The electromagnetic wave signal generated on screen；Wherein, first signal is the signal strength that first input screen works independently, described
Second signal is the signal strength that second input screen works independently.
9. electronic equipment according to claim 7, which is characterized in that the refraction angle computing module includes:
Refraction angle computational submodule, for according to the electromagnetic wave signal second input screen horizontal direction and Vertical Square
Adjacent two in a plurality of line of magnetic induction that generates respectively upwards calculate the between the time writer and second input screen
One inclination angle and with the mutual remaining refraction angle in first inclination angle.
10. electronic equipment according to claim 7, which is characterized in that second computing module, comprising:
Incidence angle computing module, for the refraction angle computing module calculate the time writer and second input screen it
Between the first inclination angle in the mutually refraction angle of remaining relationship when, incidence angle corresponding with the refraction angle is calculated, wherein the incidence angle
From the incidence of the first input screen；
Second position coordinate calculation module, for when the incidence angle computing module calculates incidence angle, according to the incidence
The contact point that the extended line at angle intersects with second input screen, calculate the time writer on second input screen with reason
By the corresponding second position coordinate of value.
11. electronic equipment according to claim 7, which is characterized in that the processing module includes:
Horizontal coordinate processing module is used for according to the difference coordinate, the level of each position coordinates on the person's handwriting
Increase corresponding differential horizontal coordinate on coordinate, generates the correction position horizontal coordinate of each point corresponded on the person's handwriting；
Vertical coordinate processing module is used for the vertical of each position coordinates according to the difference coordinate, on the person's handwriting
Increase corresponding differential vertical coordinate on coordinate, generates the correction position vertical coordinate of each point corresponded on the person's handwriting.
12. according to the described in any item electronic equipments of claim 7-11, which is characterized in that the electronic equipment includes at least:
Electronic ink screen and electromagnetic screen.
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| CN108958357A (en) * | 2017-05-22 | 2018-12-07 | 宇龙计算机通信科技(深圳)有限公司 | Screen switching, device, terminal and computer readable storage medium |
| CN109240518B (en) * | 2018-08-16 | 2020-11-20 | 汉王科技股份有限公司 | Noise processing method and device of electromagnetic handwriting equipment and storage medium |
| CN111025039B (en) * | 2019-10-24 | 2022-11-15 | 广州视源电子科技股份有限公司 | Method, device, equipment and medium for testing accuracy of touch display screen |
| CN111506348A (en) * | 2020-04-22 | 2020-08-07 | 广州光大教育软件科技股份有限公司 | Handwriting board correction multithreading parallel processing method, device, equipment and medium |
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