CN102830824A - Soft pen simulating system and soft pen simulating method - Google Patents
Soft pen simulating system and soft pen simulating method Download PDFInfo
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Abstract
The invention relates to a soft pen simulating system, wherein a pen writes smoothly and naturally and is fine and smooth in pen strokes.
Description
Technical field:
The present invention relates to soft analogue system of the numerical digit plate of EM coupling principle.
Background technology:
Simple and clear in order to describe; The position coordinates (comprising x, y, z axle), attitude (comprising and x, y, z axle clamp angle, a spin angle), pressure of the pen in the numerical digit plate (comprising the contact force between nib and the panel, the grip that finger is held pointer), key-press status, touch state (whether nib touches panel) and wait and all distinguish corresponding different actions of handing; The amount to be checked that our the EM coupling mode of passing through that these are relevant with a characteristic detects is referred to as the action variable; The detecting of these amounts to be checked is called the action variable and detects, and will become the action detection device with the supporting device that detects the action variable of pen.
Soft pen comprises the paintbrush of Chinese writing brush, foreign country etc., and soft analogue system is the digitizing technique that soft pen is write, and can form a soft analogue system such as one of them basic composition " numerical digit plate+pc+ drawing software ".
In existing soft the known analogue system, effect is also not ideal, uses soft analogue system of optical fiber technology such as patent " 20091090801.0 electronic brush pens and identification code location touch screen "; Its power consumption macrostructure is complicated, and " electronic soft pens of 200610112406.4 1 kinds of computing machine typings " for another example are the numerical digit plates of electromagnetic principle; Pressure is the thickness primary variables of control nib; Because the hysteresis phenomenon of pressure transducer, make that pressure departs from the big or small corresponding relation of style of writing in the process of lifting pen, and speed then problem is serious more more soon; Cause the accurate control that under the situation of rapid speed, loses thickness; The running hand rapid style of writing situation that is to use pressure sensitivity analogue system simulation writing brush as shown in Figure 1 can find that the vigour of style in writing in the running hand does not have basically, and some place then thickness is out of control.
So be necessary to look for the method that a kind of response speed is fast, distortion is little, solve soft pen and write and do not allow manageable problem.
Summary of the invention:
The objective of the invention is to realize a kind of analogue system of soft pen, realize the writing process of the soft pen of emulation true to nature.
In order to realize the object of the invention; Technical scheme 1 is a kind of soft analogue system, comprises display, pen, action detection device, central processing unit, and the action detection device is used for detecting pen and moves the X of detection device, the coordinate of Y axle relatively; Be provided with the LC resonant circuit in the pen; It is characterized in that said action detection device also is used for detecting pen and moves the Z axial coordinate of detection device relatively, the Z axial coordinate is the main input variable of person's handwriting size, shape.Main input variable is meant; Z axial coordinate parameter plays main effect when calculating the size shape of person's handwriting; Rather than in order to revise the booster action that other control the variable of person's handwriting size shape; Using the Z axle is to make soft pen row pen smoothness, nature, vigour of style in writing exquisiteness as the beneficial effect of the big or small control of person's handwriting major parameter, with the obvious advantage under the fireballing situation of pen of particularly being expert at.
Technical scheme 3 is soft analogue systems according to claim 2, it is characterized in that, said pen is provided with pressure transducer, detects nib by the action detection device and whether touches action.This programme has been realized the automatic measurement at person's handwriting zero point, has eliminated the deviation between vision, tactile feedback and the person's handwriting size.
Technical scheme 4 is soft analogue systems according to claim 2, it is characterized in that, soft nib, penholder on the said pen are conductors; Insulate between soft nib, the penholder; Action detection device panel surface is a conductor, common first conductor that forms when soft nib contacts with action detection device panel; Penholder and common second conductor that forms of its hand of holding mutually; Form equivalent capacity between penholder and the nib and insert said LC resonant circuit.This programme has been realized the automatic measurement at person's handwriting zero point, has eliminated the deviation between vision, tactile feedback and the person's handwriting size.
Technical scheme 5 is soft analogue systems according to claim 1, it is characterized in that, said display shows the cursor of indication Z axial coordinate.This programme purpose is to provide vision, the tactile feedback in the closed-loop control of soft person's handwriting size shape, uses the person's handwriting size to control more easily.
Technical scheme 6 is soft analogue systems according to claim 5; It is characterized in that; The cursor that said display shows comprises first cursor, second cursor, the X of the first cursor stylus, Y axial coordinate, the Z axial coordinate apart from stylus of first cursor and second cursor.This scheme is the concrete scheme of technical scheme 5, and effect is a lifelike image.
Technical scheme 7 is soft analogue systems according to claim 5, it is characterized in that, the cursor that said display shows comprises first cursor, second cursor, the X of the first cursor stylus, Y axial coordinate, the Z axial coordinate of the Length Indication pen of second cursor.This scheme is the concrete scheme of technical scheme 5, and effect is that lifelike image, the little speed of algorithm computation amount are fast.
Technical scheme 8 is soft analogue systems according to claim 5; It is characterized in that; Said display display highlighting comprises first cursor, second cursor; The focus that first cursor is identical with second cursor, the X of focal position stylus, Y axial coordinate, the Z axial coordinate of the big or small stylus of second cursor.This scheme is the concrete scheme of technical scheme 5, and effect is that the little speed of algorithm computation amount is fast.
Technical scheme 9 is a kind of soft emulation modes, comprises step: specify person's handwriting zero point; Detecting pen Z axial coordinate; Judge whether a Z axial coordinate is higher than and specify person's handwriting zero point; The Z axial coordinate is higher than specifies person's handwriting then to use cursor to indicate the Z axial coordinate zero point; If be lower than and specify person's handwriting zero point then the Z axial coordinate is designated as zero, and get into the line state, the person's handwriting size reduces with the Z axial coordinate and increases.Specify person's handwriting to refer in software, specify or set zero point by the user.
10 1 kinds of soft emulation modes of technical scheme comprise step: detect person's handwriting zero point; Detecting pen Z axial coordinate; Judge whether a Z axial coordinate is lower than and measure person's handwriting zero point that measure person's handwriting zero point then get into the line state if be lower than, line person's handwriting size reduces with the Z axial coordinate and increases.
The writing brush running hand calligraphy that use the present invention as shown in Figure 2 writes can be seen trip pen smoothness, nature, vigour of style in writing exquisiteness, the stiff sensation that does not have the working pressure induction to write.
Description of drawings:
The running hand that Fig. 1 writes through one-month period training back use pressure sensi-tive pen
The running hand that Fig. 2 writes through one-month period training back use the present invention
Fig. 3 pressure sensitive soft structural representation at zero point
Fig. 4 capacitive sensing soft structural representation at zero point
Fig. 5 shade Z axle instructs cursor
Fig. 6 ink Z axle instructs cursor
Fig. 7 cross Z axle instructs cursor
Fig. 8 moves detection device and soft analogue system synoptic diagram of display device split
Fig. 9 moves detection device and soft analogue system synoptic diagram of display device one
Figure 10 pressure sensitivity is touched the electrical schematic diagram of sensor
Figure 11 moves the circuit block diagram of detection device
The electrical schematic diagram of Figure 12 condenser type touch sensor
The software flow that the present invention in soft analogue system of Figure 13 split is correlated with
The software flow that the present invention in soft analogue system of Figure 14 one is correlated with
The meaning of numeral, label representative among the figure:
C1: resonant capacitance.
L1: resonant inductance.
C2: pressure transducer.
C3: the isolated conductor electric capacity that forms by nib, penholder.
81: display
82: computer
83: the action detection device
11: soft pen
The 112:xyz axial coordinate detects antenna
Embodiment:
Soft identical the present invention of analogue system is divided into two kinds of forms with existing pressure sensitive; A kind of is " pen+action detection device (being the numerical digit plate)+computer+display " as shown in Figure 8 structure; Be called the branch system; Another kind of is " pen+computer+display (comprising the action detection device) " structure like Fig. 9, is called integrated system.Divide in the system, user's sight line in use only rests on the display, so and generalized case action detection device and pen need not use the height of cursor prompting pen within view at display when using soft emulation; In the integrated system; Pen in sight and cursor and same moved further; The distance of range display can be observed, and the action detection device fixes with the relative distance of display, so the cursor of physical location on display of pen pointed out not necessarily when operation.
In integrated system,, soft nib is set at soft anterior end of pen for the writing style of emulation conventional softer pen more true to nature; Use pieces like Fig. 3 Fig. 4, consider that soft nib length in use changes easily, make the height of the pen of nib when the contact display understand some deviation; If preestablish person's handwriting zero point, thereby produce person's handwriting and the situation that the amount of contact does not conform to, touch sensor on pen so preferred version is provided with; Confirm whether nib and display touch; Two kinds of preferred schemes are arranged, a kind ofly at nib and penholder junction pressure transducer is set, when nib contact display like Fig. 3; Pressure can cause the characteristic variations of resonant circuit in the pen; The variation that detects the resonant circuit characteristic by the action detection device has detected promptly whether nib has contacted with display, a kind ofly like Fig. 4 nib, penholder is designed to conductor, the two poles of the earth of nib and penholder formation electric capacity; Touch action and can change the characteristic of resonant circuit, the variation that is detected the resonant circuit characteristic by the action detection device has detected promptly whether nib has contacted with display.
In soft analogue system of one; When soft pen moved from top to bottom, soft Z axial coordinate of record calculated the size of person's handwriting then as person's handwriting zero point according to the Z axial coordinate of pen when the action detection device begins to detect nib and touches; Person's handwriting becomes big when the Z axial coordinate reduces, and forms written handwriting; When soft pen moved from top to bottom, the Z axial coordinate changed from small to big, and then person's handwriting diminishes, and when reaching person's handwriting during zero point, the vanishing of person's handwriting size has then been accomplished once and write.
In soft analogue system of one; Pressure sensitivity is touched electrical principle such as Figure 10 of sensor; Touching as nib is that the electric capacity of pressure transducer C2 can change, thereby has changed the resonance frequency of resonant circuit (L1 and C1, C2 form), and the action detection device is through detecting the resonance frequency of resonant circuit in the soft pen; Detect soft pen and whether touched display pannel, the action detection device detects circuit structure such as Figure 11 of soft resonance frequency.
In soft analogue system of one, the electrical principle of condenser type touch sensor such as Figure 12, wherein resonant circuit is made up of L1, C1; Action detecting circuit structure such as Figure 11; Capacitor C 3 soft nibs of representative and the common equivalent capacity that forms of penholder, nib is first electrode, penholder is second electrode with the hand that it is held mutually; Display pannel covers the conducting film of layer of transparent; When soft nib touches display pannel is that conducting film is connected to first electrode as conductor, because second electrode fixes, the conductive film whether first electrode inserts display panel can influence the amount of equivalent capacity C3; Thereby the resonance frequency of the LC resonant circuit that influence is attached thereto, thereby, the action detection device touches action whether foundation for providing to detect.
Like Figure 11; The circuit block diagram of action detection device; The action detecting circuit is through the resonant circuit of antenna array emitted energy in the pen; Resonant circuit produces harmonic echo, and the action detecting circuit goes out the XYZ coordinate of inductance in the resonant circuit, the XYZ coordinate of the pen that promptly obtains through the amplitude analysis of the various signals on the antenna array.
In soft analogue system of split, person's handwriting is to preestablish initial value or set by the user zero point, when the Z axial coordinate produces person's handwriting less than person's handwriting during zero point; And the more little then person's handwriting of Z axial coordinate is big more; Cursor Z axial coordinate indicating section relative fixed when the Z axial coordinate person's handwriting then do not occur greater than person's handwriting during zero point, and is changed by the Z axle of the soft pen of cursor Z axle indicating section indication; The preferred version that cursor indication Z axial coordinate changes has three kinds; A kind of is relative distance cursor indication scheme, and a kind of is length cursor indication scheme, and a kind of is big or small cursor indication scheme.
Cursor indication Z axial coordinate change apart from the cursor indication scheme, at least two cursors are set, the coordinate of establishing soft is (x; Y, z), person's handwriting zero point is z0; Be higher than under the person's handwriting situation at zero point at the Z axial coordinate, wherein the demonstration focal position at display of first cursor be (x, y); The demonstration focal position of second cursor be (x+Cx* (z-z0), y+Cy* (z-z0)) wherein Cx, Cy be according to the predefined constant of display effect needs, equaling to be lower than under the person's handwriting situation at zero point wherein at the Z axial coordinate, the demonstration focal position at display of first cursor is (x; Y), the demonstration focal position of second cursor be (x, y); As shown in Figure 5 is apart from the concrete scheme of cursor indication scheme; Wherein first cursor is designed to the shape of soft pen; Second cursor then is designed to the shade of soft pen, and focus is a nib, and the value of Cx, Cy is confirmed by the position of the light source that produces shade; Cx=1 Cy=0 wherein, the use feeling of this programme is to hold a pen under the light in the hand.
The length cursor indication scheme that cursor indication Z axial coordinate changes is provided with at least two cursors, and the coordinate of establishing soft pen is (x, y; Z), person's handwriting zero point is z0, is higher than under the person's handwriting situation at zero point at the Z axial coordinate; Wherein the demonstration focal position at display of first cursor be (x, y), the position of second cursor is (x+Ox; Y+Oy) show length=L-C* (z-z0) wherein L, C, Ox, Oy be according to the predefined constant of display effect needs, the Z axial coordinate equal to be lower than under the person's handwriting situation at zero point first cursor wherein in the demonstration focal position of display for (x, y); The demonstration focal position of second cursor be (x, y), cursor length is L; As shown in Figure 6 is the concrete scheme of length cursor indication scheme; Wherein first cursor is designed to the shape of soft pen, and second cursor then is designed to the ink column of soft pen, and focus is a nib; The value of Ox, Oy is a constant by soft pen and the decision of ink column relative position; L is the total length of ink column, and C is the constant of being confirmed by Z axle maximal value and L, and the use feeling of this programme is the piston handle of holding in the hand with the pen of injecting ink piston.
The big or small cursor indication scheme that cursor indication Z axial coordinate changes is provided with at least two cursors, and the coordinate of establishing soft pen is (x, y; Z), person's handwriting zero point is z0, is higher than under the person's handwriting situation at zero point at the Z axial coordinate; Wherein the demonstration focal position at display of first cursor be (x, y), the position of second cursor is (x+Ox; Y+Oy) show radius=R+C* (z-z0) wherein R, C, Ox, Oy be according to the predefined constant of display effect needs, the Z axial coordinate equal to be lower than under the person's handwriting situation at zero point first cursor wherein in the demonstration focal position of display for (x, y); The demonstration focal position of second cursor be (x, y), the cursor radius is R; As shown in Figure 7 is the concrete scheme of big or small cursor indication scheme, and wherein first cursor is designed to circle, and second cursor then is designed to circular radiant rays; Focus is the center of circle; The value of Ox, Oy is zero, and the radius of R first cursor, C are the constants of being confirmed by Z axle maximal value and R; The use feeling of this programme is the pen of holding in the hand with light source, and moving up and down radius change diminishing greatly radiant rays with beginning to write is that the last light source of pen impinges upon the luminous point on the paper.
Among Fig. 5 Fig. 6 Fig. 7; A figure among each figure is that the Z axial coordinate is higher than the person's handwriting situation at zero point in the various schemes; B figure among each figure is that the Z axial coordinate equals the person's handwriting situation at zero point in the various schemes, and the c figure among each figure is that the Z axial coordinate is lower than the situation that person's handwriting produces person's handwriting zero point in the various schemes.
Though consider that the soft nib of the soft pen of branch system not necessarily but be provided with and do not influence use; And the cursor of the Z axial coordinate in integrated system prompting not necessarily but be provided with and also do not influence use; So considering software, when soft pen is compatible, can these characteristics used in the lump.
Figure 13 is the software flow in soft analogue system of split, and two processes are wherein arranged, and the process on the left side is the prompting of coordinate and the process of writing of person's handwriting, and the process on the right side is by man-machine interface person's handwriting process at zero point to be set.The method of the control of cursor, person's handwriting is followed " distance, length, size " above-mentioned cursor displaying scheme.
Figure 14 is the software flow in soft analogue system of one, wherein has only a process, and promptly be the Z axial coordinate that touches first in the sampled point zero point of person's handwriting to person's handwriting by the automatic record of software zero point.The method of the control of cursor, person's handwriting is followed " distance, length, size " above-mentioned cursor displaying scheme.
Annotate: the embodiment of this instructions record is an embodiment preferred, and purpose and means that it can explain invention on the whole are not that the invention instance is exhaustive.
Finish
Claims (10)
1. soft analogue system comprises display, pen, action detection device, central processing unit, and the action detection device is used for detecting pen and moves the X of detection device, the coordinate of Y axle relatively, is provided with the LC resonant circuit in the pen, it is characterized in that:
Said action detection device also is used for detecting pen and moves the Z axial coordinate of detection device relatively, and the Z axial coordinate is the main input variable of person's handwriting size, shape.
2. soft analogue system according to claim 1 is characterized in that,
Said anterior end of pen is provided with soft nib.
3. soft analogue system according to claim 2 is characterized in that,
Said pen is provided with pressure transducer, the resonance frequency of the said LC resonant circuit of pressurized variable effect of pressure transducer.
4. soft analogue system according to claim 2 is characterized in that,
Soft nib, penholder on the said pen are conductors; Insulate between soft nib and the penholder; Action detection device panel surface is a conductor, common first conductor that forms when soft nib contacts with action detection device panel; Penholder and common second conductor that forms of its hand of holding mutually; Form equivalent capacity between penholder and the nib and insert said LC resonant circuit.
5. soft analogue system according to claim 1 is characterized in that,
Said display shows the cursor of the Z axial coordinate of stylus.
6. soft analogue system according to claim 5 is characterized in that,
The cursor that said display shows comprises first cursor, second cursor, the X of the first cursor stylus, Y axial coordinate, the Z axial coordinate apart from stylus of first cursor and second cursor.
7. soft analogue system according to claim 5 is characterized in that,
The cursor that said display shows comprises first cursor, second cursor, the X of the first cursor stylus, Y axial coordinate, Z axial coordinate of the Length Indication pen of second cursor.
8. soft analogue system according to claim 5 is characterized in that,
Said display display highlighting comprises first cursor, second cursor, and first cursor has identical focus with second cursor, the X of focus stylus, Y axial coordinate, the Z axial coordinate of the big or small stylus of second cursor.
9. soft emulation mode comprises step:
Specify person's handwriting zero point;
Detecting pen Z axial coordinate;
Judge whether a Z axial coordinate is higher than and specify person's handwriting zero point; The Z axial coordinate is higher than specifies person's handwriting then to use cursor to indicate the Z axial coordinate zero point; If be lower than and specify person's handwriting zero point then the Z axial coordinate is designated as zero, and get into the line state, the person's handwriting size reduces with the Z axial coordinate and increases.
10. soft emulation mode comprises step:
Detect person's handwriting zero point;
Detecting pen Z axial coordinate;
Judge whether a Z axial coordinate is lower than and measure person's handwriting zero point that measure person's handwriting zero point then get into the line state if be lower than, line person's handwriting size reduces with the Z axial coordinate and increases.
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| CN107219941A (en) * | 2017-05-23 | 2017-09-29 | 中国科学院自动化研究所 | Soft real-time track generation method, storage medium, processing equipment |
| CN111352562A (en) * | 2019-01-22 | 2020-06-30 | 鸿合科技股份有限公司 | Chalk character realization method and device, electronic equipment and storage medium |
| CN113126788A (en) * | 2021-04-01 | 2021-07-16 | 武汉华星光电半导体显示技术有限公司 | Touch pen and touch identification method |
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