CN109445637A - Handwriting processing method based on pen tip position - Google Patents
Handwriting processing method based on pen tip position Download PDFInfo
- Publication number
- CN109445637A CN109445637A CN201811321301.9A CN201811321301A CN109445637A CN 109445637 A CN109445637 A CN 109445637A CN 201811321301 A CN201811321301 A CN 201811321301A CN 109445637 A CN109445637 A CN 109445637A
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- China
- Prior art keywords
- line
- rope
- handwriting
- pen tip
- pen
- Prior art date
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
- G06F3/0383—Signal control means within the pointing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
Abstract
The present invention is more particularly directed to a kind of handwriting processing methods based on pen tip position, comprising the following steps: (S1) initializes the size and color of Electronic Paper and person's handwriting, and for the thickness of person's handwriting having a size of d, person's handwriting detection cycle is T；(S2) every to pass through time T, processing unit receives the output information of pressure sensing cell and measuring unit and executes following steps；(S3) processing unit judges that pen tip carries out writing and is carried out in next step, otherwise return step S2；(S4) information that measuring unit exports is converted into the coordinate (x, y) of pen tip by processing unit；(S5) processing unit with coordinate (x, y) is the center of circle, draws round constituency by diameter of size d, and the color of all pixels point in round constituency is revised as to the color of person's handwriting, return step S2.Through the above steps, it will not relate to complicated operation, only simply the region beside position (x, y) dyed, form continuous person's handwriting finally by continuous dyeing, deal with very fast.
Description
Technical field
The present invention relates to Writing instrument technical field, in particular to a kind of handwriting processing method based on pen tip position.
Background technique
Common note taking scheme is carried out by paper and pen, with the promotion of scientific and technological level, present electronics
Product such as mobile phone, plate becomes more and more popular, and more and more people select electronic product to record the note, and the most common electronic product is
The cooperation of plate and capacitance pen.Compared to traditional paper pen scheme, is recorded the note, had many advantages, such as by electronic product: first,
Without using paper pen, paper pen is all consumables, needs to buy after being finished, electronic product does not need then；Second, facilitating record, repairing
Change, store and check: when record electronic notebook, it is only necessary to mobile phone or plate and capacitance pen or finger are equipped with, without taking
Band paper and pen；Electronic notebook modification is got up easily, and the type and color of pen, record notes diversification also can be arbitrarily selected；Electricity
Son notes storage, duplication are all very convenient, and lookup gets up also to be easy to；Third, being that electronic notebook can save for a long time, it is not easy to lose
It loses, there are also other lot of advantages.But since present technology is limited, the writing effect of capacitance pen is imitated not as good as traditional paper pen
Fruit, and since capacitance pen nib is larger, cannot as traditional paper pen Free Writing, so still there is many people to continue to select
The mode of paper pen is selected to record the note.In order to solve the deficiency of capacitance pen, it is desirable to provide a kind of more structurally sound person's handwriting electronization
System and method, and currently the most important ones is how person's handwriting electronization.
Summary of the invention
The purpose of the present invention is to provide a kind of handwriting processing methods based on pen tip position, calculate simple and processing speed
Fastly.
In order to achieve the above object, the technical solution adopted by the present invention are as follows: a kind of handwriting processing method based on pen tip position,
The following steps are included: the size and color of (S1) initialization Electronic Paper and person's handwriting, the color of Electronic Paper and the color of person's handwriting are different,
For the thickness of person's handwriting having a size of d, person's handwriting detection cycle is T；(S2) it is every pass through time T, processing unit receive pressure sensing cell and
The output information of measuring unit simultaneously executes following steps；(S3) processing unit according to pressure sensing cell judge pen pen tip whether
It is write, if pen tip is write, is performed the next step, otherwise return step S2；(S4) processing unit is defeated by measuring unit
Information out is converted into the coordinate (x, y) of pen tip；(S5) processing unit is the center of circle, the drafting by diameter of size d with coordinate (x, y)
Round constituency, and the color of all pixels point in round constituency is revised as to the color of person's handwriting, return step S2.
Compared with prior art, there are following technical effects by the present invention: through the above steps, do not need to location information into
Row curve matching forms track, would not also be related to complicated operation, only simply carries out to the region beside position (x, y)
Dyeing forms continuous person's handwriting finally by continuous dyeing, deals with very fast.
Detailed description of the invention
Fig. 1 is the functional block diagram of positioning system；
Fig. 2 is the structural schematic diagram of Fig. 1；
Fig. 3 is the positioning system functional block diagram with calibration function；
Fig. 4 is the structural schematic diagram of Fig. 3；
Fig. 5 is the person's handwriting schematic diagram for the alphabetical A that handwriting processing method is handled out through the invention；
Fig. 6 is tie unit structural schematic diagram；
Fig. 7 is angle detecting modular structure schematic diagram；
Fig. 8 is the structural schematic diagram of line or length detection embodiment one of restricting；
Fig. 9 is the structural schematic diagram of line or length detection embodiment two of restricting；
Figure 10 is the measuring system structural schematic diagram of the measurement line comprising Fig. 8 or extension elongation of restricting；
Figure 11 is the measuring system structural schematic diagram of the measurement line comprising Fig. 9 or extension elongation of restricting；
Figure 12 is pressure sensing cell structural schematic diagram；
Figure 13 is the structural schematic diagram that can store the notebook of person's handwriting；
Figure 14 is the tip part of pen enlarged structure schematic diagram of Figure 13；
Figure 15 is the structural schematic diagram with writing function mobile phone or plate protective shell.
Specific embodiment
Below with reference to Fig. 1 to Figure 15, the present invention is described in further detail.
Refering to fig. 1, a kind of positioning device, including first line by the first reference point 20a or the 10a that restricts, by second
The Article 2 line of reference point 20b or rope 10b, tie unit 30, measuring unit 40 and processing unit 50, first line or
The projecting end of rope 10a and Article 2 line or the 10b that restricts are connected with bit location undetermined.By the first reference point 20a and the second reference point
The side of the straight line of 20b constitutes area to be targeted namely area to be targeted in the side of straight line, such area to be targeted it is any
A little with the distance between the first reference point 20a and the second reference point 20b L1, L2 just it is corresponding it is unique a bit, the dotted line right side in Fig. 1
The region of side section constitutes area to be targeted, in actual use, generally can select suitable size in right side of dotted line as needed
Area to be targeted.Tie unit 30 is used to keeping from the first reference point 20a first line stretched out or the 10a and from second of restricting
The Article 2 line or rope 10b that reference point 20b stretches out are in exceptionally straight state, and measuring unit 40 is for measuring first line or rope 10a
The length L2 stretched out from the first reference point 20a length L1 stretched out and Article 2 line or rope 10b from the second reference point 20b, only
Have by tie unit 30 by first line or rope 10a and Article 2 line or rope 10b it is exceptionally straight, the length measured is only directly
Line length could facilitate and carry out subsequent position calculating.Processing unit receives length L1 and L2 and obtains list to be positioned after calculating
Position of the member in area to be targeted.By selecting the first reference point 20a and the second reference point 20b of fixed position, then measure
The extension elongation L1 and L2 of first line or restrict 10a and Article 2 line or rope, length L1 namely bit location undetermined here and the
Distance, length L2 namely the bit location undetermined of one reference point 20a on this basis, naturally may be used at a distance from the second reference point 20b
To be readily available the location information of bit location undetermined.
Referring to Fig.2, including rectangular positioning plate 60, raised line 61 is provided in the plate face of positioning plate 60, raised line 61 is neighbouring fixed
The wherein a line setting of position 60 plate face of plate forms step, is spaced apart and is equipped on step between raised line 61 and the plate face of positioning plate 60
Two through-holes constitute the first reference point 20a and the second reference point 20b, tense for hollow form for accommodating in positioning plate 60
Unit 30, measuring unit 40 and processing unit 50.After being arranged in this way, the plate face of the not set raised line 61 of positioning plate 60 is constituted
The area to be targeted；There are two through-hole, the positions of the two through-holes for setting on the step that positioning plate 60 and raised line 61 are formed
Be it is fixed, also just constitute the first reference point 20a and the second reference point 20b, first line or rope 10a are from the first reference point 20a
Middle stretching, Article 2 line or rope 10b stretched out from the second reference point 20b, the projecting end of two lines or rope with bit location undetermined
It is connected, in this way, bit location undetermined when moving in the plate face of positioning plate 60, that is, drives first line or rope 10a and Article 2
The extension elongation of line or the 10b that restricts change, and 50 pairs of extension elongations, which carry out processing, through the processing unit can be obtained list to be positioned
Location information of the member on positioning plate 60.
In general, two reference points and two lines are set or the positioning of bit location undetermined can be realized in rope, in order to protect
Demonstrate,prove positioning precision, the present invention in further: including by third reference point 20c Article 3 line or rope 10c, Article 3 line
Or the projecting end of rope 10c is connected with bit location undetermined, third reference point 20c and other two reference point be not conllinear.Four sides are passed through
Region that the rectangle of three reference points is enclosed constitutes area to be targeted, the words it is also understood that: pass through the first ginseng
Examination point 20a, the second reference point 20b and 3 points of third reference point 20c fittings, one rectangle, the rectangle constitute to be positioned
Region mathematically can draw any number of rectangles by three not conllinear three point, we only need from wherein
Optional one, for example dashed rectangle in Fig. 3 is the area to be targeted optionally gone out.Tie unit 30 is for keeping
Be in exceptionally straight state from the third reference point 20c Article 3 line stretched out or rope 10c, measuring unit 40 be used to measure Article 3 line or
The length L3 that rope 10c is stretched out from third reference point 20c, processing unit 50 treat positioning unit in area to be targeted according to length L3
Position be corrected, since the position of bit location undetermined, calculated position and third can be calculated by length L1, L2
The distance of reference point 20c is not necessarily exactly equal to length L3, can be finely adjusted, make to calculated position coordinates this when
It obtains the distance between calculated position and third reference point 20c and is equal to L3.
Fig. 4 is a kind of instantiation structure of Fig. 3, including rectangular positioning plate 60, is provided with L-type in the plate face of positioning plate 60
Raised line 61, the long side of raised line 61 is parallel and the long side setting of 60 plate face of positioned adjacent plate, the short side of raised line 61 are parallel and neighbouring
The broadside of 60 plate face of positioning plate is arranged, and forms step between raised line 61 and the plate face of positioning plate 60, on the step of 61 long edge position of raised line
It is spaced apart to set and constitutes the first reference point 20a and the second reference point 20b there are two through-hole, on the step at 61 short side of raised line
It offers a through-hole and constitutes the third reference point 20c, be hollow form for accommodating tie unit 30, surveying in positioning plate 60
Measure unit 40 and processing unit 50.After being arranged in this way, the plate face of the not set raised line 61 of positioning plate 60 be constitute it is described to
Localization region；First line or rope 10a are stretched out from the first reference point 20a, and Article 2 line or rope 10b are from the second reference point 20b
Middle stretching, Article 3 line or rope 10c stretched out from third reference point 20c, the projecting end of three lines or rope with bit location undetermined
Be connected, in this way, bit location undetermined is in the plate face of positioning plate 60 when moving, that is, drive first line or rope 10a, Article 2 line or
The extension elongation of rope 10b and Article 3 line or the 10c that restricts change, and 50 pairs of extension elongations are handled i.e. through the processing unit
Location information of the bit location undetermined on positioning plate 60 can be obtained, device detection is got up very convenient.
By the location information of the available bit location undetermined of above structure, in this way, it is only necessary to persistently detect list to be positioned
The location information of member, can get the motion profile of bit location undetermined, therefore, it is possible to use the pen of positioning device recording pen
Mark.In the present embodiment specifically, the bit location undetermined is the pen 70, Ke Yijin that can be write or be carried out simulation writing
The i.e. common gel ink pen of the pen that running hand is write, pen, pencil etc. can write out the pen of writing on paper, can carry out simulation writing
Pen has the shape of pen but cannot write out the pen of writing, for example general common capacitance pen can be considered carry out
Simulate the pen write；The pen tip of the projecting end connecting pen 70 of first line or rope 10a and Article 2 line or the 10b that restricts, positioning plate 60
The writing paper or display screen placed in plate face constitute the area to be targeted；When normal writing, pen 70 is transported on positioning plate 60
It is discontinuous when dynamic comprising two states: one is pen 70 is write on positioning plate 60；The second is pen 70 is detached from positioning plate
60 carry out the movement of pen tip position.If detected to the pen tip position of pen 70 always, there is the pen tip of pen 70 at many positions
There is no writings, are invalid location informations, therefore further include the pressure whether write for detecting pen tip in the present embodiment
Detection unit 80, if pressure sensing cell 80 detects that pen tip is write, location information at this time is effective, if pressure is examined
It surveys unit 80 and detects that pen tip is not write, and pen tip is moved in disengaging positioning plate 60, location information at this time is nothing
Effect.Location information when processing unit 50 need to only write pen tip is converted into electronic handwriting.
Location information is converted into electronic handwriting, there are many methods may be implemented, is provided in the present invention a kind of based on pen tip
The handwriting processing method of position, without excessive calculating, processing speed is very fast comprising following steps: (S1) initialization electricity
The size and color of sub- paper and pen mark, the color of Electronic Paper and the color of person's handwriting are different, so electronic Electronic Paper and person's handwriting
There can be apparent difference, user is facilitated to check；In general, the color of Electronic Paper is mostly that white or brown paper color, person's handwriting are more
For black or red or blue；For the thickness of person's handwriting having a size of d, person's handwriting detection cycle is T；(S2) every to pass through time T, processing unit
The output information of 50 reception pressure sensing cells 80 and measuring unit 40 simultaneously executes following steps；(S3) processing unit 50 is according to pressure
Power detection unit 80 judges whether pen tip is write, if pen tip is write, performs the next step, otherwise return step S2；
(S4) range information that measuring unit 40 exports is converted into coordinate (x, y) by processing unit 50；(S5) processing unit 50 is with coordinate
(x, y) is the center of circle, draws round constituency by diameter of size d, and the color of all pixels point in round constituency is revised as pen
The color of mark, return step S2.Fig. 5 is exactly the person's handwriting that method is drawn out through the above steps, is checked for convenience, in Fig. 5
Round constituency in color be not revised as person's handwriting color, through the above steps, it is quasi- just curve not to be carried out to location information
Biosynthesis locus, without being related to complicated operation；Only simply the region beside position (x, y) is dyed, finally
Continuous person's handwriting is formed by constantly dyeing, although the person's handwriting that the program obtains is not mellow and full enough, is also used enough.
Pen 70 is obtained at the position of area to be targeted, what is actually obtained is the pen tip of pen 70 relative to the first reference point
Relative position between 20a and the second reference point 20b, when the writing paper or screen position that are placed on positioning plate 60 become
When change, even if there is no variations for pen tip position, but relative position of the pen tip on writing paper or display screen has occurred that and changes
Become.It further include calibrating coordinates step in the step S1: (S11) writing paper or display in order to avoid the appearance of this error
Reference origin is provided on screen；(S12) pen tip is moved at reference origin position, processing unit 50 exports measuring unit 40
Range information be converted into reference coordinate (x0, y0)；In the step S5, processing unit 50 is with coordinate (x-x0, y-y0)
Draw round constituency in the center of circle.In this way, every replacement a piece of paper or carrying out primary calibration at regular intervals, so that it may guarantee person's handwriting
Accuracy.It is optional herein with reference to origin, as long as guaranteeing that the position of reference origin on the paper of writing paper or is shown
In the screen area of screen；Reference origin is new coordinate origin, and coordinate (x-x0, y-y0) is in new coordinate system
Coordinate value, this coordinate is relative coordinate, i.e., relative to the coordinate of reference origin, after calibrating reference origin every time, then passes through
Relative coordinate draws person's handwriting, as a result very accurate.
Position coordinates (x, y) of the bit location undetermined in area to be targeted have many methods that can be calculated, in the present invention
Preferably, distance L1, L2 is converted into location information according to the following steps by the processing unit 50: (A) is with the first reference point 20a
Be that origin establishes coordinate system with the line midpoint of the second reference point 20b, in coordinate system, the coordinate of the first reference point 20a be (0,
B), the second reference point 20b coordinate is (0 ,-b), and wherein b is equal to distance between the first reference point 20a and the second reference point 20b
Half, b are constants, and in coordinate system, area to be targeted is the region that X-axis is positive number；(B) bit location undetermined is in area to be targeted
Position coordinates (x, y) are calculated as follows:
Above-mentioned formula is stored directly in processing unit 50, processing unit 50 will distance L1, L2 and distance b substitute into it is above-mentioned
Formula can easily calculate coordinate (x, y), it should be noted that coordinate (x, y) here is absolute coordinate, i.e., to be positioned
Position of the unit in the coordinate system that step A is established.
Tie unit 30 and measuring unit 40 may be implemented there are many kinds of structure, and in actual use, we can be them
It goes to design as a whole.Also disclosed in the present invention it is a kind of for measure line or restrict extension elongation measuring system, including
Line or rope 10, reference point 20, tie unit 30 and measuring unit 40, the line or rope 10 are stretched out from reference point 20, are drawn
The line or rope 10 that tight unit 30 is used to keep stretching out from reference point 20 are in exceptionally straight state, and measuring unit 40 is for measuring line or rope
10 length stretched out from reference point 20.In this way, when constituting aforementioned positioning device, it is only necessary to two groups or three groups such surveys be arranged
Then the projecting end of line or rope 10 is connected by amount system with bit location undetermined；The measuring system, which can be also used for other, to be needed
In the occasion for measuring the line of stretching or 10 length of restricting, such as tape measure etc..
The various structures of tie unit 30, refering to Fig. 6, in the present invention preferably: the tie unit 30 includes coiling
One end of wheel 31 and wind spring 32, line or rope 10 is fixed on reel 31, and line or rope 10 drive reel 31 to rotate when stretching out
The rotation direction of the elastic reaction power drive reel 31 of direction and wind spring 32 on the contrary, in this way, wind spring 32 elastic acting force
Under, line or rope 10 are at always by exceptionally straight state.The structure is simple, and tenses very reliable.
Refering to Fig. 7, the structure of same measuring unit 40 also there are many kinds of implementation, due in the present invention primarily directed to
The variation of the length of line or rope 10 measures, so also needing the direction of motion of detection line or rope 10.Here preferably, described
Measuring unit 40 include angle detecting module 41, angle detecting module 41 include first partition 411, second partition 412 and from
Moving sleeve 413, from the reel 31 stretch out line or rope 10 sequentially pass through the through-hole opened up in first partition 411, second every
It is stretched out again from reference point 20 after the through-hole opened up on plate 412, driven socket 413 is set in first partition 411 and second partition 412
Between line or rope 10 on, the internal diameter of driven socket 413 slightly larger than line or restrict 10 outer diameter, this line-transect or rope 10 are during exercise
Driven socket 413 can be driven to move together and line or rope when driven socket 413 is stopped by first partition 411 or second partition 412
10 still being capable of self-movement；It is respectively set that there are two contacts in first partition 411 and the opposite face of second partition 412, it is driven
Sleeve 413 is made of conductive material, and driven socket 413 is resisted against two contacts when in first partition 411 in first partition 411
Conducting, driven socket 413 are resisted against two contacts when on second partition 412 on second partition 412 and are connected, and processing unit 50
The direction of motion of line or rope 10 is judged according to the on state of contact.When in use, if line or rope 10 are stretched out to outside reference point 20,
It necessarily drives driven socket 413 to move to 412 side of second partition, until driven socket 413 is resisted against on second partition 412
When, two contacts in first partition 411 disconnect, two contacts conducting on second partition 412, and processing unit 50 receives the
On two partitions 412 contact conducting i.e. judge line or restrict 10 be it is outwardly directed, due to the blocking of second partition 412, driven set
Cylinder 413 is just no longer moved after second partition 412；Similarly, 30 elastic threads of tie unit or rope 10 when, line or rope 10 drive
Driven socket 413 is moved to 411 side of first partition, and processing unit 50 receives the conducting of the contact in first partition 411 and sentences
Broken string or rope 10 inwardly retract.The very little that direction detection module 41 can be set, structure is also very simple, direction inspection
It surveys very reliable.
Further, the height of prominent 411 plate face of first partition in two contacts in the first partition 411 is identical, the
The height of prominent 412 plate face of second partition in two contacts on two partitions 412 is identical, the contact in first partition 411 and second
The length L5 of the distance between contact on partition 412 L4 and driven socket 413 meets relational expression: 0 < L4-L5 < 2mm.L4 must
L5 need be longer than, such driven socket 413 could move between first partition 411 and second partition 412；But L4 again cannot
It is more too many than L5 long, it is long it is too many if, when line or rope 10 change directions movement, angle detecting module 41 cannot the timely side of detecting
To variation, theoretically for, L4 ratio L5 is slightly longer little by little can to take 0.05mm, could guarantee in this way angle detecting and
Shi Xing.
Line or rope 10 can choose stainless steel filament or setline, and line or 10 length detection of restricting have many schemes real
It is existing, two kinds of specific embodiments are provided for reference in the present invention.
Refering to Fig. 8, embodiment one, transparent section 11 and lighttight mask segments 12 including light transmission of the line or rope 10 are first
Tail is formed by connecting, and the equal length of transparent section 11 and mask segments 12 and is arranged at distances from one another, between reel 31 and reference point 20
Line or rope 10 sides be provided with Photoelectric Detection module 42 for detection line or restrict 10 light transmittance, processing unit 50 is according to light transmission
The change frequency k of the rate and length a of transparent section calculates the extension elongation changing value Δ L=a*k of line or rope 10.By selection by
The line or rope 10 that transparent section 11 and mask segments 12 are constituted, line or rope 10 are during exercise, so that it may be sentenced by monitoring its light transmittance
Disconnected extension elongation changing value, it is very convenient.
Photoelectric Detection module 42 in order to facilitate the installation of, in the present embodiment preferably, the measuring unit 40 include installation
Seat 43, the section of mounting base 43 along its length is in " E " font, along 43 length side of mounting base on the intermediate transverse slat of mounting base 43
Pass through to first through hole 431 is offered for line or rope 10, the aperture of first through hole 431 is consistent with the outer diameter of line or rope 10；Installation
It is also provided with the second through-hole 432 on the intermediate transverse slat of seat 43, the second through-hole 432 intersects with first through hole 431 and the two is hung down each other
Directly, the aperture of the second through-hole 432 is less than or equal to the aperture of first through hole 431, and Photoelectric Detection module 42 includes being separately positioned on peace
The luminous tube 421 in 43 two grooves of seat and the first photo resistance 422 are filled, the light that luminous tube 421 issues passes through the second through-hole
432 are incident in the first photo resistance 422.Pass through the mounting base 43 of setting " E " font, it may be convenient to which Photoelectric Detection mould is installed
Block 42, and pass through setting first through hole 431 and the second through-hole 432, it may be convenient to somewhere saturating on line or rope 10
Light rate is reliably detected, and the structure is very easy, facilitates processing and installation.
Further, cover board 45 is provided in the mounting base 43, the lid of cover board 45 is closed in 43 side of mounting base of " E " font
In the opening of face, cover board 45 is provided with flange along the both ends of 43 length direction of mounting base and closes for covering at the both ends of mounting base 43,
It is opened up on the flange of cover board 45 and fluted the lid of cover board 45 is avoided 10 to interfere when closing with line or restrict.It is arranged after cover board 45, it can
To avoid the interference of environment light, the reliability of light transmittance detection is greatly improved, guarantees detection accuracy, the line or rope detected in this way
The variation of 10 extension elongations is very accurate.
Refering to Fig. 9, embodiment two, the measuring unit 40 includes driven wheel 44, and driven wheel 44 includes the first driven wheel
441 and second driven wheel 442, the first driven wheel 441 and 441 central spindle of the second driven wheel is overlapped and the two is along the adjacent cloth of shaft core direction
It sets, is stretched out again from reference point 20 after the first driven wheel 441 from the line or rope 10 that the reel 31 stretches out, the second driven wheel
Along the circumferential direction uniform intervals arrange that multiple apertures, aperture side are provided with Photoelectric Detection module 42 and are used at 442 neighborings
Detect the light transmittance of the second driven wheel 442, processing unit 50 is according to adjacent on the change frequency k of light transmittance, the second driven wheel 442
The central angle θ of the two apertures and radius r of the first driven wheel 441, calculate line or restrict 10 extension elongation changing value Δ L=(2
πθ/180)·k·r.Central angle θ mentioned here is angle, it is assumed that the second driven wheel 442 along the circumferential direction arrange by uniform intervals
There are 100, then the central angle θ of two neighboring aperture is exactly 360 °/100 namely 3.6 °；When practical application, the second driven wheel
442 radius is bigger, and the settable aperture of outer region is more, and the central angle θ of two neighboring aperture will be smaller, this line-transect
Or the calculating of the extension elongation of rope 10 will be more accurate, but correspondingly also will increase system bulk；Meanwhile first driven wheel
441 radius is smaller, and the calculating of the extension elongation of line or rope 10 also can be more accurate；In actual selection, suitable first is selected
The extension elongation computational accuracy of line or rope 10 can be improved in the radius of driven wheel 441 and the second driven wheel 442.
Further, the measuring unit 40 includes mounting base 43, and the section of mounting base 43 along its length is in
The outer region of " Contraband " font, the second driven wheel 442 setting aperture is located in the groove of " Contraband " font, and Photoelectric Detection module 42 is wrapped
Include the luminous tube 421 being separately positioned on mounting base groove inner wall and the first photo resistance 422, the light that luminous tube 421 issues
It is incident in the second photo resistance 422 by the aperture on the second driven wheel 442.It is driven to second by Photoelectric Detection module 42
The edge of wheel 442 carries out light transmittance detection, so that it may it detects to have turned over how many a apertures when the rotation of the second driven wheel 442,
It can learn the rotational angle of the second driven wheel 442, the second driven wheel 442 and the coaxial arrangement of the first driven wheel 441, thus
It is known that the rotational angle of the first driven wheel 441, line can be calculated further according to the radius of first driven wheel 441 or rope 10 is stretched
Length varying value out.
In embodiment two, no setting is required special line or rope 10, but need to select suitable line or restrict 10 material and the
The material of one driven wheel 441, guarantee have certain frictional force between the two, this line-transect or rope 10 could reliably drive when moving
First driven wheel 441 rotates together.Therefore here preferably, the line or rope 10 stretched out from the reel 31 is around first from moving in turn
441 1 weeks~stretch out after three weeks from reference point 20, the outer profile of the first driven wheel 441 was round or regular polygon, in this way can be with
Guarantee necessarily to drive that the first driven wheel 441 rotates together and the two can move synchronously when 10 movement of line or rope.
0 and Figure 11 refering to fig. 1, this is two specific embodiment structural schematic diagrams of measuring system, is respectively corresponded above-mentioned
Two embodiments, figure is more succinct, is easier to see in order to allow, and the line or rope 10 being wound on reel 31 in Figure 10 are not shown
Bright section 11 and mask segments 12.It should be noted that being according to tie unit 30, angle detecting module 41 and length detection mould in figure
This sequence setting of block, in fact, angle detecting module 41 and length detection module can be with reversed orders, it can according to drawing
Tight unit 30, length detection module and angle detecting module 41 this sequentially measuring system is set.
In addition, since length detection above is detection changing value, so when practical application, the line or rope of measuring system
10 initial extension elongations can be measured and be saved, and then processing unit 50 is calculated on initial length according to changing value, just
The actual value of available line or 10 extension elongations of restricting.
Refering to fig. 12, pressure sensing cell 80 also there are many kinds of implementation, in the present invention preferably, the pen 70
Including pen container 71 and pen core 72, pressure sensing cell 80 includes the resistance strain gage 81 being arranged in pen container 71 and the first detection electricity
Road 82, the rear end of pen core 72 are resisted against on resistance strain gage 81, and 72 pinched resistor foil gauge 81 of pen core is led when pen 70 is write
Cause its resistance value to change, the resistance of 82 detection resistance foil gauge 81 of the first detection circuit and after handling resistance value output be
No writing signal is into processing unit 50.After being arranged in this way, when writing, 72 pinched resistor foil gauge 81 of pen core, electricity
The resistance value of foil gauge 81 is hindered compared to there is significant change when extruding, and the detection for passing through resistance value in this way can be very reliable
Detect whether pen 70 is being write.
80 testing result of pressure sensing cell can be directly transferred in processing unit 50 by conducting wire, can also pass through nothing
The mode of line is transmitted, for example passes through bluetooth module.Wired scheme, it is necessary to be arranged between pen 70 and positioning plate 60 and lead
Line, it is not convenient enough；Bluetooth module is set, the cost of system is increased.Therefore here preferably, the pen 70 includes pen container 71 and pen
Core 72, pressure sensing cell 80 include the resistance strain gage 81 being arranged in pen container 71, the first detection circuit 82, illuminating circuit 83
And the second photo resistance 84 on positioning plate, the second detection circuit 85 are set, the rear end of pen core 72 is resisted against resistance-strain
On piece 81,72 pinched resistor foil gauge 81 of pen core causes its resistance value to change when pen 70 is write, the first detection circuit 82
The resistance of detection resistance foil gauge 81 simultaneously drives illuminating circuit 83 to act, and pen container 71 is made close to the position of pen tip of transparent material
It is projected for the light of illuminating circuit 83, the light that the second photo resistance 84 detection illuminating circuit 83 issues simultaneously is converted into resistance value change
Change, the second detection circuit 85 detects the resistance of the second photo resistance 84 and exports whether write signal extremely after handling resistance value
In processing unit 50.It is different from aforementioned schemes, after the first detection circuit 82 detects the change in resistance of resistance strain gage 81 here
Illuminating circuit 83 is driven to act, for example pen, when writing, illuminating circuit 83 acts, LED light is lighted and emitted beam, and pen exists
When writing, illuminating circuit 83 is failure to actuate, and LED light is extinguished；Then second photo resistance 84 is set again to detect the electricity that shines
The light on road 83 changes, and detects the resistance of the second photo resistance 84 finally by the second detection circuit 85 to judge the second photosensitive electricity
Whether resistance 84 senses the light variation of illuminating circuit 83,, can be with without setting bluetooth module in this way, no setting is required conducting wire
The wireless transmission of signal is realized with lower cost, and use it is very reliable, it is also very useful, or even with pen 70
When being write, the light that illuminating circuit 83 emits can improve the light intensity for writing region, play the role of protecting eyes.
Two kinds of specific application scenarios are also disclosed in the present invention, to elaborate the use of above structure.
Usage scenario one, refering to fig. 13 and Figure 14, a kind of notebook storing person's handwriting, including rectangular positioning plate
60, the left or right side of positioning plate 60 is provided with raised line 61, and there are two 10 points of reference point 20, two lines or ropes for setting on raised line 61
It is not stretched out from two reference points 20 and the projecting end of two lines or rope 10 is fixedly connected with annulus 90, between pen tip and the composition of annulus 90
Gap cooperation and pen tip insertion annulus 90 in move when drive two lines or restrict 10 extension elongation change, raised line 61 with/
Or tie unit 30, measuring unit 40 and processing unit 50 are provided in positioning plate 60, tie unit 30 is for keeping from ginseng
The line or rope 10 that examination point 20 is stretched out are in exceptionally straight state, and measuring unit 40 is used to measure the length that line or rope 10 are stretched out from reference point 20
Pen tip is calculated on positioning plate 60 according to the extension elongation and 90 radius of annulus of two lines or rope 10 in degree, processing unit 50
Location information and by the position information process of lasting calculating at person's handwriting, it is practical namely when passing through length L1, L2 coordinates computed again
L1 value be L1 add annulus 90 radius, actual L2 value be L2 add annulus 90 radius.Pass through setting line or rope
10, reference point 20, tie unit 30, measuring unit 40, processing unit 50 and positioning plate 60, by elaboration before, Ke Yifang
Just the acquisition of realization pen tip position, then 50 processing through the processing unit, it may be convenient to realize the record of pen tip writing.By
In pen when writing, it is sometimes necessary to save writing, sometimes without this demand, and pen tip itself is not easy and line or rope
10 compositions are fixedly connected, so being provided with annulus 90 here, are allowed line or rope 10 to be fixedly connected with annulus 90, are then inserted into pen tip
It in annulus 90, after being arranged in this way, for different pen tips, can be applicable in, and pen tip breaks down, it can at any time more
It changes, does not influence the use of the notebook.
In general, raised line 61 is all that the left side of positioning plate 60 is arranged in so that it is convenient to which user is write using the right hand；
For the user that certain left hands accustomed to using are write, the right side that positioning plate 60 is arranged in raised line 61 can choose, so not
It will affect writing.
Using the notebook, when recording the note, it is only necessary to pen tip is inserted into annulus 90, so the person's handwriting write is all
It can be saved into electronic version, conveniently checked on computer or tablet computer or mobile phone or other mobile terminals in the future,
Share, transmission, entire synchronizing process is automatically, without people's manual operations, to use easily.
Preferably, in order to guarantee handle person's handwriting accuracy, exclude unnecessary Position disturbance, further include for detecting pen
The pressure sensing cell 80 whether point is write, location information when processing unit 50 writes pen tip are converted into electronic pen
Mark gives up location information when not writing.It has been elaborated before the specific structure of pressure sensing cell 80, here just not
It repeats again.
Refering to fig. 14, when in order to guarantee that pen tip is write at an arbitrary position, annulus 90 can be connect well with line or rope 10,
In the present invention preferably, the annulus 90 includes the first annulus 91 and the second annulus 92 along the setting of 90 shaft core direction of annulus,
First annulus, 91 periphery is provided with annular groove, and the second annulus 92 is located in annular groove, in order to illustrate annular groove, Figure 14
Middle that second annulus 92 is truncated from centre, in actual use, the second annulus 92 is the cyclic structure of an entirety, two lines or rope
10 projecting end is connected with the first annulus 91 and the second annulus 92 respectively.After being arranged in this way, the first annulus 91 and the second annulus
92 is free to rotate, this ensures that the center of circle of the first annulus 91 is located on the extended line of first line or the 10a that restricts, the second circle
The center of circle of ring 92 is located on the extended line of Article 2 line or the 10b that restricts, in this way, can be more acurrate at calculating position.
There are many kinds of the structures of raised line 61, and in the present embodiment preferably, the raised line 61 is perpendicular to 60 plate face of positioning plate
The section in direction is isosceles trapezoid, and the bottom of raised line 61 is aligned setting with a line of positioning plate 60, the upper bottom of raised line 61 with calmly
The plate face of position plate 60 forms First terrace 611, on First terrace 611 setting there are two through-hole constitute two reference points 20 and
Center line symmetrical setting of two through-holes about isosceles trapezoid after being arranged in this way, on the one hand has certain aesthetics, another
What aspect raised line 61 was also used as taking away notebook is affectedly bashful portion.Be arranged along its length on First terrace 611 it is fluted,
Two lines or rope 10 and annulus 90 are accommodated in the groove when pen tip is not inserted into annulus 90, are arranged after groove, Ke Yifang
Just it stores, when not needing positioning, line or rope 10 and annulus 90 will not influence writing, improve the comfort used.
Further, the left side of positioning plate 60 is arranged in the raised line 61, is provided at the right side edge of positioning plate 60
Cover 62, cover 62 and positioning plate 60 constitute folding cooperation, just as the cover of hard-cover notebook, can play protection positioning
The effect of paper in plate 60；The upside of positioning plate 60 is provided with pressing plate 63, and pressing plate 63 is adsorbed on positioning plate by magnetic action power
For the paper on fixed clamp positioning plate 60 on 60, generally in use, one or more paper can be taken to be placed on positioning plate 60,
Then it is compressed with pressing plate 63, then pen tip, which is inserted into annulus 90, to write, and storing paper can be set on cover 62
Storage pocket, use so just more easily.
This can store tie unit 30, measuring unit 40, processing unit 50, pressure sensing cell in the notebook of person's handwriting
80 structure and specific handwriting processing method have been elaborated in part before, are just repeated no more here, as long as pressing
It is configured according to scheme before.
Usage scenario two, refering to fig. 15, in the prior art, generally positioned on the screen using capacitance pen, and it is electric
The nib for holding pen is all bigger, and writing precision is not high enough, and it is not good enough also to experience, and writes precision and experience to improve, mentions here
It has supplied one kind that there is writing function mobile phone or plate protective shell, including rectangular positioning plate 60, has been provided on positioning plate 60
For groove for accommodating plate or mobile phone, the positioning plate 60 positioned at groove left or right side constitutes raised line 61, is provided on raised line 61
Two reference points 20, two lines or rope 10 stretch out respectively from two reference points 20 and the projecting end and simulation pen of two lines or rope 10
70 pen tip is connected, and when pen tip movement drives two lines or 10 extension elongation of restricting changes, raised line 61 for hollow form and
Tie unit 30, measuring unit 40 and processing unit 50 is arranged inside, tie unit 30 is stretched for keeping from reference point 20
Line or rope 10 out is in exceptionally straight state, and measuring unit 40 is used to measure the length that line or rope 10 are stretched out from reference point 20, processing
Location information and general of the pen tip on plate or mobile phone screen is calculated according to the extension elongation of two lines or rope 10 in unit 50
The location information is exported to plate or mobile phone.
It should be noted that groove is arranged on positioning plate 60 to accommodate plate or mobile phone, it is also possible in existing hand
In side raised line 61 is added on the basis of machine or Plate Shell to realize, part, that is, structure of existing mobile phone or Plate Shell intermediate recess
At the groove.Due to needing to accommodate mobile phone and plate, reference point 20 be can be set on the upper surface of the raised line 61, only
Through-hole there are two needing to be spaced apart and set in the upper surface of raised line 61.
By using the present apparatus, it may be convenient to be write on the screen of mobile phone or plate, simulate the pen tip of pen 70
What be can be set is very thin, and material can also be arbitrarily arranged, in this way, it is all unusual good to write precision and experience.It uses
Easily.
Further, the simulation pen 70 includes pen container 71 and pen core 72, and pen core 72 is all made of plastic material；Raised line
Be provided on 61 for receipt of wire or restrict 10 the first groove 612 and for store simulate pen 70 the second groove 613, first
Groove 612 is straight trough and its both ends extends respectively at the position of two reference points 20, and the second groove 613 is arranged in the first groove
612 middle section and the two is arranged in parallel, the center position of the second groove 613 are provided with recess 614 and take simulation convenient for user
Pen 70.First groove 612 and the second groove 613 are set, it may be convenient to store, then lead to simulation pen 70 and line or rope 10
Recess 614 is crossed, can be convenient and take or put down simulation pen 70.
With tie unit 30, measuring unit 40, processing unit 50, the pressure in writing function mobile phone or plate protective shell
The structure of power detection unit 80 and specific pen tip position processing method have been elaborated in part before, here just not
It repeats again, as long as being configured according to scheme before.
Claims (10)
1. a kind of handwriting processing method based on pen tip position, it is characterised in that: the following steps are included:
(S1) initialize Electronic Paper and person's handwriting size and color, the color of Electronic Paper and the color of person's handwriting are different, person's handwriting it is thick
Carefully having a size of d, person's handwriting detection cycle is T；
(S2) every to pass through time T, processing unit (50) receives the output information of pressure sensing cell (80) and measuring unit (40)
And execute following steps；
(S3) processing unit (50) judges whether the pen tip of pen (70) is write according to pressure sensing cell (80), if pen tip
It is write, is performed the next step, otherwise return step S2；
(S4) information that measuring unit (40) exports is converted into the coordinate (x, y) of pen tip by processing unit (50)；
(S5) processing unit (50) with coordinate (x, y) is the center of circle, draws round constituency by diameter of size d, and by round constituency
The color of middle all pixels point is revised as the color of person's handwriting, return step S2.
2. as described in claim 1 based on the handwriting processing method of pen tip position, it is characterised in that: in the step S1,
Further include calibrating coordinates step:
(S11) reference origin is provided on writing paper or display screen；
(S12) pen tip is moved at reference origin position, is converted into the information that measuring unit (40) exports according to step S4
Reference coordinate (x0, y0)；
In the step S5, processing unit (50) is that round constituency is drawn in the center of circle with coordinate (x-x0, y-y0).
3. as claimed in claim 1 or 2 based on the handwriting processing method of pen tip position, it is characterised in that: including passing through first
First line or rope (10a) of reference point (20a), tense list at the Article 2 line by the second reference point (20b) or rope (10b)
First (30), measuring unit (40) and processing unit (50), first line or rope (10a) and Article 2 line or rope (10b)
Projecting end be connected with pen tip, writing paper or display screen constitute area to be targeted, and tie unit (30) is for keeping from the first ginseng
First line or rope (10a) that examination point (20a) is stretched out and Article 2 line or rope (10b) from the second reference point (20b) stretching
In exceptionally straight state, measuring unit (40) is used to measure the length that first line or rope (10a) are stretched out from the first reference point (20a)
The length L2 that L1 and Article 2 line or rope (20a) are stretched out from the second reference point (20b)；
In the step S4, processing unit (50) receives length L1 and L2 and obtains the coordinate of pen tip after calculating.
4. as claimed in claim 3 based on the handwriting processing method of pen tip position, it is characterised in that: the processing unit
(50) distance L1, L2 is converted into pen tip coordinate according to the following steps:
(A) coordinate system is established using the line midpoint of the first reference point (20a) and the second reference point (20b) as origin, in coordinate system
First reference point (20a) coordinate is (0, b), and the second reference point (20b) coordinate is (0 ,-b), and wherein b is equal to the first reference point
The half of distance between (20a) and the second reference point (20b)；
(B) pen tip is calculated as follows in the position coordinates (x, y) of writing paper or display screen:
5. as claimed in claim 4 based on the handwriting processing method of pen tip position, it is characterised in that: including rectangular positioning plate
(60), it is provided with raised line (61) in the plate face of positioning plate (60), the wherein a line of raised line (61) positioned adjacent plate (60) plate face
Setting forms step between raised line (61) and the plate face of positioning plate (60), be spaced apart there are two setting on step described in through-hole composition
First reference point (20a) and the second reference point (20b), interior positioning plate (60) is hollow form for accommodating tie unit (30), surveying
Measure unit (40), processing unit (50) and pressure sensing cell (80).
6. as claimed in claim 5 based on the handwriting processing method of pen tip position, it is characterised in that: the pen (70) includes pen
Cylinder (71) and pen core (72), pressure sensing cell (80) include the resistance strain gage (81) being arranged in pen container (71), the first inspection
Slowdown monitoring circuit (82), illuminating circuit (83) and the second photo resistance (84) being arranged on positioning plate (60), the second detection circuit
(85), the rear end of pen core (72) is resisted against on resistance strain gage (81), and pen core (72) pinched resistor is answered when pen (70) is write
Becoming piece (81) causes its resistance value to change, and the resistance of the first detection circuit (82) detection resistance foil gauge (81) simultaneously drives luminous
The light injection for illuminating circuit (83) is made close to the position of pen tip for transparent material in circuit (83) movement, pen container (71), the
The light of two photo resistance (84) detection illuminating circuit (83) sending is simultaneously converted into change in resistance, the second detection circuit (85) detection
The resistance of second photo resistance (84) simultaneously exports whether write signal into processing unit (50) after handling resistance value.
7. as claimed in claim 5 based on the handwriting processing method of pen tip position, it is characterised in that: the tie unit
(30) include reel (31) and wind spring (32), first line or rope (10a) far from the other end of bit location undetermined be fixed on around
In line wheel (31), first line or rope (10a) drive the direction of reel (31) rotation and the elasticity of wind spring (32) to make when stretching out
Rotation direction with power drive reel (31) is opposite；Article 2 line or rope (10b) are exceptionally straight by the same manner.
8. as claimed in claim 7 based on the handwriting processing method of pen tip position, it is characterised in that: the measuring unit
(40) include angle detecting module (41), angle detecting module (41) include first partition (411), second partition (412) and
Driven socket (413), first line stretched out from the reel (31) or rope (10a) sequentially pass through on first partition (411)
It is stretched out again from the first reference point (20a) after the through-hole opened up on the through-hole that opens up, second partition (412), driven socket set (413)
On first line or rope (10a) being located between first partition (411) and second partition (412)；First partition (411) and second
It is respectively set on the opposite face of partition (412) there are two contact, driven socket is made of (413) conductive material, driven socket
(413) it is resisted against two contacts conducting when on first partition (411) in first partition (411), driven socket (413) is resisted against
Two contacts conducting when on second partition (412) on second partition (412), processing unit (50) is according to the on state of contact
Judge the direction of motion of first line or rope (10a)；Article 2 line or rope (10b) direction of motion are judged by the same manner.
9. as claimed in claim 8 based on the handwriting processing method of pen tip position, it is characterised in that: first line or
Rope (10a) includes that the transparent section (11) of light transmission and lighttight mask segments (12) are formed by connecting from beginning to end, transparent section (11) and shielding
Section (12) equal length and be arranged at distances from one another, first line or rope between reel (31) and the first reference point (20a)
(10a) side is provided with Photoelectric Detection module (42) for detecting the light transmittance of first line or rope (10a), processing unit (50)
The extension elongation variation of first line or rope (10a) is calculated according to the length a of the change frequency k and transparent section (11) of light transmittance
It is worth Δ L=a*k；The extension elongation changing value of Article 2 line or rope (10b) is calculated by the same manner.
10. as claimed in claim 9 based on the handwriting processing method of pen tip position, it is characterised in that: the measuring unit
It (40) include driven wheel (44), driven wheel (44) includes the first driven wheel (441) and the second driven wheel (442), the first driven wheel
(441) and the second driven wheel (442) central spindle is overlapped and the two is adjacently positioned along shaft core direction, stretches out from the reel (31)
First line or rope (10a) are stretched out from the first reference point (20a) again after bypassing the first driven wheel (441), the second driven wheel (442)
Along the circumferential direction uniform intervals arrange that multiple apertures, aperture side are provided with Photoelectric Detection module (42) for examining at neighboring
Survey the light transmittance of the second driven wheel (442), processing unit (50) is according on the change frequency k of light transmittance, the second driven wheel (442)
The central angle θ of the two neighboring aperture and radius r of the first driven wheel (441), the stretching for calculating first line or rope (10a) are long
Spend changing value Δ L=(2 θ/180 π) kr；The extension elongation changing value of Article 2 line or rope (10b) is calculated by the same manner.
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|---|---|---|---|
| CN201811321301.9A CN109445637B (en) | 2018-11-07 | 2018-11-07 | Handwriting processing method based on pen point position |
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|---|---|---|---|
| CN201811321301.9A CN109445637B (en) | 2018-11-07 | 2018-11-07 | Handwriting processing method based on pen point position |
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| CN109445637A true CN109445637A (en) | 2019-03-08 |
| CN109445637B CN109445637B (en) | 2022-08-19 |
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| CN114734747A (en) * | 2022-05-06 | 2022-07-12 | 深圳市学立佳教育科技有限公司 | Training pen for improving balance of left and right brains |
| CN115938244A (en) * | 2023-02-20 | 2023-04-07 | 深圳市英唐数码科技有限公司 | Display method, system and storage medium of electronic paper book adapting to multiple pen shapes |
| CN115938244B (en) * | 2023-02-20 | 2023-06-02 | 深圳市英唐数码科技有限公司 | Multi-pen-shaped adaptive electronic paper book display method, system and storage medium |
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