CN101604212B - Recognition method of writing actions and tracks, writing device and recognition system thereof - Google Patents
Recognition method of writing actions and tracks, writing device and recognition system thereof Download PDFInfo
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- CN101604212B CN101604212B CN 200810100443 CN200810100443A CN101604212B CN 101604212 B CN101604212 B CN 101604212B CN 200810100443 CN200810100443 CN 200810100443 CN 200810100443 A CN200810100443 A CN 200810100443A CN 101604212 B CN101604212 B CN 101604212B
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Abstract
The invention discloses a recognition method of writing actions. The recognition method mainly comprises the following steps: fetching messages generated when a writing tool is used for writing; and judging the existence of the messages to acknowledge the state of the writing tool, i.e. whether the writing tool is written on the writing surface or out of the writing surface. The invention also provides a recognition method of writing tracks in another embodiment. The recognition method of the writing actions is utilized to merge with a character recognition technology so as to convert the writing tracks into characters. In addition, the invention further provides a writing device and a recognition system. A message-collecting device arranged in the writing tool is utilized, and a processing unit using the recognition method of writing actions and writing tracks is then utilized to process and recognize the corresponding characters.
Description
Technical field
The present invention is relevant a kind of identification technique of writing, and refers in particular to a kind of a kind of action of writing and track discrimination method and writing device and identification system of utilizing voice signal to judge action of writing.
Background technology
Along with the progress of science and technology, modern's life is inseparable with information-technology products.In the product of Information technology, especially the sci-tech product such as computing machine and mobile phone is lived closely bound up with majority especially.And the user can utilize these computing machine sci-tech products, and the job command that will carry out is delivered in the computing machine, and after processing and changing, the result after computing machine can be processed it is presented on the screen.In such operating process, the mode of linking up between user and the computing machine need to be used as interactive interface by an input interface.
The man-machine interface of past computer product is modal to be keyboard and mouse.Generally speaking, mouse mainly only can change mobile input pattern with selecting, so function is limited, is difficult to assign the instruction of complicated pluralism.And keyboard input because button is various, therefore need through the study of certain hour be familiar with, therefore higher study door is arranged.In addition, use keyboard or mouse, usually difficult graphic plotting and the processing of carrying out exquisiteness, or need the more time to process.Based on these restrictions, other input mode, for example: the man-machine input pattern of hand-written or voice also just in response to and give birth to.
In handwriting input mode commonly used, just expose a handwriting tracks identification system such as the disclosed a kind of handwriting input track identification system of U.S. publication application number US2004/0184659 and method, comprise: motion detection unit be used for output based on system ontology at the electronic signal of the acceleration change in space and a control module for detection of the non-hand-written section interval when system ontology temporarily stops, its standard deviation by accekeration follows time range that relatively defining of a threshold value write to obtain hand-written electronic signal.In this technology, intercharacter is write deliberately to suspend just and can be done breaking point detection.
In addition, U.S.'s publication application number US 2006/0088215 disclosed a kind of identification system of writing and for example, it is with the front end of a pressure transducer at writing implement, differentiate the track whether contact writing surface and mask are arranged and the signal of starting writing, and then utilize acceleration computing handwriting trace and add that pressure gauge is as the hand-written signal breaking point detection.And for example United States Patent (USP) is announced US.Pat.No.6, and 628,847 disclosedly also utilize a pressure transducer in nib for a kind of, and whether have contact writing surface, the track of mask and the signal of starting writing if differentiating.
Summary of the invention
The invention provides a kind of action of writing discrimination method, it can detect the message that writing implement produces when write on the plane, and writes or leave this writing surface by the state of learning writing implement this moment that has or not of judgement message on the plane for being in.
The invention provides a kind of handwriting trace discrimination method and writing device and identification system, it can utilize message to carry out corresponding with the handwriting trace of writing implement, picking out the trajectory signal that belongs to the state of writing, and then carry out identification to produce the literal to state should be write the time for this trajectory signal.
The invention provides a kind of writing device and identification system, it arranges the device that can collect message in this writing device, and this system has action of writing and the processing unit of track discrimination method in conjunction with this writing device and utilization and distinguishes to know and corresponding literal.
In one embodiment, the invention provides a kind of action of writing discrimination method, it includes the following step: capture the voice signal that a writing implement produces when writing; And according to this voice signal, judge the state of this writing implement.
In another embodiment, the present invention more provides a kind of action of writing discrimination method, and it includes the following step: capture the voice signal that a writing implement produces when writing; And according to this voice signal, judge the state of this writing implement.
In another embodiment, the present invention more provides a kind of handwriting trace discrimination method, and it includes the following step: capture the voice signal that a writing implement produces when writing; Capture this writing implement and change a continuous electronic signal that produces because of action; Convert this voice signal to an identification voice signal, it includes at least one message of writing; Compare this identification voice signal and this continuous electronic signal; And the signal that in this continuous electronic signal the position that should at least onely write message is had carried out an identification and combinator.
In another embodiment, the present invention more provides a kind of writing device, comprising: one writes body, and it can produce an action of writing; One audio signal reception device, it is arranged at this and writes on the body, and this writes the voice signal that produces when body produces action of writing this audio signal reception device fechtable; And a message judging unit, it is connected with this audio signal reception device telecommunications, and this message judging unit can receive this voice signal and process to produce to an identification voice signal that should writing book body state.
In another embodiment, the present invention more provides a kind of identification system of writing, and comprising: one writes body, and it can produce an action of writing; One audio signal reception device, it is arranged at this and writes on the body, and this writes the voice signal that produces when body produces action of writing this audio signal reception device fechtable; One message judging unit, it is connected with this audio signal reception device telecommunications, and this message judging unit can receive this voice signal and process to produce to an identification voice signal that should writing book body state; One motion detection unit, it can detect this action of writing body to produce a continuous electronic signal; One track processing unit, it can compare this identification voice signal and this continuous electronic signal, so that corresponding at least one signal that the position was had of writing message in this continuous electronic signal is carried out identification and combination; And a text-recognition unit, it can be according to the result of this identification and combination, and produces corresponding written contents.
Description of drawings
Figure 1A is action of writing discrimination method embodiment schematic flow sheet of the present invention;
Figure 1B is the state embodiment schematic flow sheet of this writing implement of judgement of the present invention;
Fig. 2 A is the voice signal synoptic diagram that initial measurement is arrived;
Fig. 2 B is voice signal synoptic diagram after treatment;
Fig. 3 is another embodiment schematic flow sheet of action of writing discrimination method of the present invention;
Fig. 4 is handwriting trace discrimination method embodiment schematic flow sheet of the present invention;
Fig. 5 is identification combinator schematic flow sheet of the present invention;
Fig. 6 A and Fig. 6 B are voice signal of the present invention and continuous electronic signal fusing synoptic diagram;
Fig. 7 A to Fig. 7 C is the recognition character synoptic diagram;
Fig. 8 is the literal synoptic diagram with turning point;
Fig. 9 is writing device embodiment synoptic diagram of the present invention;
Figure 10 A is the identification system synoptic diagram of writing of the present invention;
Figure 10 B is track processing unit embodiment synoptic diagram of the present invention;
Figure 11 is another embodiment synoptic diagram of body of writing of the present invention.
Wherein Reference numeral is:
1-action of writing discrimination method
10～11-step
120～121-step
2-action of writing discrimination method
20～23-step
3-handwriting trace discrimination method
30～34-step
340～342-step
The 4-writing device
40-writes body
The 41-audio signal reception device
410,411-microphone
42-noise processed unit
The 421-sound wave points to control module
43-message judging unit
5-writes identification system
50-writes body
The 51-audio signal reception device
510,511-microphone
52-noise processed unit
53-message judging unit
The 54-motion detection unit
55-track processing unit
550-signal segmentation arithmetic element
551-track arithmetic element
56-text-recognition unit
The 90-threshold value
91,910,911,912-voice signal
The 913-turning point
92-continuous electronic signal
920,921,922-acceleration sensing signal
The 924-zone
The 925-trajectory signal
The 926-actuating signal
927,928-zone
9270～9273-track
9280～9282-relative position
The 93-zone
The 94-track
The 95-trajectory direction
Embodiment
Be further cognition and understanding feature of the present invention, purpose and function, hereinafter the spy describes the relevant thin section structure of device of the present invention and the theory reason of design, is presented below in detail:
See also shown in Figure 1A, this figure is action of writing discrimination method embodiment schematic flow sheet of the present invention.In the present embodiment, the method 1 includes step 10, captures the voice signal that a writing implement produces when writing.In this step, this writing implement can be pen or the instrument that is available for users to hand, even is user's finger etc., but not as limit.When this writing implement when writing because friction is, can produce this sound, therefore can utilize the device of radio reception or assembly to collect the voice signal that produces when writing.Method as for acquisition sound in step 10 has a variety of modes, can be arranged on the radio reception device on the writing device or on the clipboard, in addition utilize outside radio reception device collect message can, there is no specific restriction.Then carry out step 12, according to this voice signal, judge the state of this writing implement.See also shown in Fig. 2 A, this figure is the voice signal synoptic diagram.Since when the voice signal collected basically can be contained writing implement and writing because the message that friction produces, and also can comprise the sound that produces when writing implement moves, the message that (writing implement moves) produced when the message that is produced in the time of therefore can writing to separate out through the mode that signal is processed in this step and non-writing.
As shown in Figure 1B, this figure is the state embodiment schematic flow sheet of this writing implement of judgement of the present invention.At first carry out step 120, set first a threshold value.The size of this threshold value can be decided according to the situation of reality, there is no certain restriction.Please cooperate and consult shown in Fig. 2 A, can understand the meaning of threshold value 90 representatives, that is the message of the signal of in these threshold value 90 scopes, containing will be regarded as non-writing the time.Return shown in Figure 1B, then carry out step 121, when this voice signal surpasses this threshold value, judge that then this writing implement is in the state of writing, if this voice signal, judges then that this writing implement is in mobile status less than this threshold value.After carried out step 121, the signal of Fig. 2 A just can form shown in Fig. 2 B, only is left to be judged out the voice signal of writing implement when writing.
See also shown in Figure 3ly, this figure is another embodiment schematic flow sheet of action of writing discrimination method of the present invention.In the present embodiment, the method 2 includes step 20, captures the voice signal that a writing implement produces when writing.Then carry out step 21, utilize the method for beam forming (beamforming), the generation direction that the radio reception direction is directed to sound when writing is strengthened voice signal to form one.Because when writing, although have the sound that produces because of writing implement and planar friction, because of the interference that still has other sound in the external environment.Therefore in the present embodiment, can utilize the mode of beam forming, the direction that sound produced when the direction that sound is received was directed to and writes, the error that is produced to reduce follow-up judgement increases the precision of judging.As for the method for beam forming, mainly to be voice signal that the array audio signal reception device is received carry out calculation process to obtain the Output rusults of a capable of regulating radio reception beam direction through the mode voice signal of digital conversion and ranking operation for it.The mode of beam forming belongs to prior art, and it is to can be used for the signals such as sound wave, radar wave to process, and therefore not to repeat here.Then carry out step 22, this reinforcement voice signal is carried out the step of a filtering noise.In this step, in order to fall low noise interference, this strengthens voice signal more can be by the processing of bandpass filter, with unnecessary noise filtering.Subsequently, carry out step 23, according to this voice signal, judge the state of this writing implement.This state includes the state of writing or is non-movement of writing.The program of step 23 is described as aforesaid step 12, and therefore not to repeat here.
See also shown in Figure 4ly, this figure is handwriting trace discrimination method embodiment schematic flow sheet of the present invention.In the present embodiment, mainly be that handwriting trace identification in conjunction with aforesaid action of writing discrimination method and writing device is to judge the literal of writing.The method 3 includes the following step, at first carry out step 30, captures the voice signal that a writing implement produces when writing.This step as the aforementioned step 10 is described, and therefore not to repeat here.Then carry out step 31, capture this writing device and change a continuous electronic signal that produces because of action.Because the voice signal in the step 30 only can as the foundation that has or not when writing, therefore need to come the mobile status of sensing writing device when writing in order to follow-up program of carrying out text-recognition by step 31.
In the step 31, the action of sensing writing device changes can be by a lot of modes, for example: the inertia sensing assembly of gyroscope or acceleration transducer is set in writing device or Image sensor apparatus (CCD) is set, but or even utilize the prior aries such as infrared ray or ultrasonic all the action of this writing device of sensing change.Next carry out step 32, convert this voice signal to an identification voice signal, it includes at least one message of writing.Because obtained voice signal in step 30 contains message and writing device the message in movement of writing device when writing, even contain the interference message of external environment condition or noise etc.Therefore, in step 32, with aforesaid step 21 to 23 identical, the mode that can utilize the step 21 and 22 in the earlier figures 2 to mention utilizes the wave beam integer first voice signal to be processed with the program of filtering noise, and then carry out step 23, according to this voice signal, judge the state of this writing implement.This state includes the state of writing or is non-mobile status of writing.Result through step 32 can consult the signal condition shown in Fig. 2 B.
After the step 32, then carry out step 33 this identification voice signal of comparison and this continuous electronic signal.Because this voice signal is consistent with the time of this continuous electronic signal, therefore behind the voice signal of in step 32, having determined to write the state generation, just can compare with this continuous electronic signal, be to belong to the electronic signal that is sensed when writing with the electronic signal of determining which section in this continuous electronic signal.See also shown in Fig. 6 A and Fig. 6 B, this figure is voice signal of the present invention and continuous electronic signal fusing synoptic diagram.In Fig. 6 A, the voice signal 911 when this voice signal 91 can be distinguished the voice signal 910 that has when writing and non-writing.And this continuous electronic signal 92 mainly is comprised of the acceleration sensing signal 920 of 3 axles, 921 and 922, but not as limit.When this voice signal 91 was compared with this continuous electronic signal 92, the continuous electronic signal in the zone 93 that the voice signal 911 during non-writing corresponds to was judged to be broken into insignificant electronic signal.Anti-, 92 of the continuous electronic signals that the voice signal 910 when writing corresponds to belong to significant electronic signal.When step 33 comparison complete after, then form the state such as Fig. 6 B.
Return shown in Figure 4ly, then carry out step 34, the signal that in this continuous electronic signal the position that should at least onely write message is had is carried out an identification and combinator.So-called in the step 34 signal that in this continuous electronic signal the position that should at least onely write message is had is the continuous electronic signal that the zone 924 among Fig. 6 B is contained.As shown in Figure 5, this figure is identification combinator schematic flow sheet of the present invention.At first carry out step 340, this continuous electronic signal is divided into a trajectory signal and an actuating signal, this trajectory signal signal that the position that should at least onely write message is had wherein, this actuating signal is corresponding non-position of writing message.As shown in Figure 6A, the electronic signal of continuous electronic signal 92 for utilizing acceleration transducer to sense, after over-segmentation, its result is shown in Fig. 7 A and 7B.Wherein among Fig. 7 A, show that this continuous electronic signal corresponds to the trajectory signal 925 of writing voice signal 910, Fig. 7 B shows that then this continuous electronic signal corresponds to non-actuating signal 926 of writing voice signal 911.
Return shown in Figure 5ly, carry out step 341, determine at least one handwriting trace according to this trajectory signal.In step 341, shown in Fig. 7 A, the step of carrying out track reduction for trajectory signal 925, with understand each correspondence write voice signal the electronic signal representative track and direction why, the track 9270 to 9273 of reduction result shown in zone 927 is interior.Then can carry out step 342 shown in Figure 5, determine relative position between this at least one handwriting trace according to this actuating signal.Shown in Fig. 7 B, the step of carrying out track reduction for actuating signal 926 understanding the movement locus between adjacent handwriting trace, and then is judged the relative position between adjacent handwriting trace.For example in Fig. 7 B, actuating signal 9260 represents that hand moves the inertial signal of generation between handwriting trace before and after it, therefore can make mobile direction and distance according to this signal, so solve relative position and distance between adjacent handwriting trace.The relative position 9280 to 9282 that representative determines according to step 342 in the zone 928 in Fig. 7 B.
Return shown in Figure 5ly, then carry out step 343, should at least one handwriting trace with and corresponding relative position make up.This step mainly is to utilize the track 9270 to 9273 and relative position 9280 to 9282 that determines among Fig. 7 A and Fig. 7 B, makes up the pattern that obtains such as Fig. 7 C according to the priority of time.Because this pattern not yet there is no any literal meaning before the identification, therefore need to be by the step 344 of Fig. 5, the result who makes up according to step 343 carries out text-recognition, and the results are shown on the screen identification.
For example shown in Fig. 7 A and Fig. 7 B, this figure is the recognition character synoptic diagram.When utilizing step 341 can obtain track 94 and trajectory direction 95 that each section of correspondence shown in Fig. 7 A write voice signal.Then utilize the track 94 of institute's identification among step 342 Fig. 7 A to be combined into pattern such as Fig. 7 C.And via step 344 pick out this pattern for Chinese " king " word.In addition, owing in the process of writing, may have the phenomenon of the turnover of writing, for example shown in Figure 8, at writing words " 2 " in 913 place can have a turning point in the position, therefore the position that utilizes voice signal of the present invention can also this turning point of auxiliary judgment to occur is in order to follow-up usefulness of carrying out the literal judgement.In Fig. 6 B, the position of label 912 in the voice signal namely is that representative has turning point to produce when writing.
See also shown in Figure 9ly, this figure is writing device embodiment synoptic diagram of the present invention.In the present embodiment, this writing device 4 has the body of writing 40, an audio signal reception device 41, a noise processed unit 42 and a message judging unit 43.This writes body 40, and it can produce an action of writing.In the present embodiment, the kenel that this writes 40 one-tenth pens of body grips in order to the user.In another embodiment, as shown in figure 11, this writes 40 one-tenth one sleeve-shapeds of body, so that accommodating user's finger to be provided.In the embodiment of Figure 11, the user can directly utilize the body 40 of writing of this sleeve-shaped directly to write on clipboard.This audio signal reception device 41, it is arranged at this and writes on the body 40, and this writes the voice signal that body 40 produces these audio signal reception device 41 fechtables when action of writing.This audio signal reception device 41 can be made of at least one radio reception assembly (as: microphone or directional microphone).In the present embodiment, this audio signal reception device is made of a plurality of radio reception microphones 410 and 411.These a plurality of radio reception microphones can become the array type spread configuration to write on the body 40 in this.
This audio signal reception device 41 more is connected with a noise processed unit 42, and this noise processed unit 42 can receive the voice signal that this audio signal reception device 41 produces, and the noise of this voice signal of filtering.In addition, have more a sound wave and point to control module 421 in this noise processed unit 42, the calculation mechanism that it has beam forming (beamforming) can be directed to the radio reception direction of audio signal reception device 41 and write the direction that sound occurs.Calculation mechanism as for the wave beam integer belongs to prior art, and therefore not to repeat here.This message judging unit 43, it is connected as telecommunications with this noise processed unit 42, and this message judging unit 43 can receive through the voice signal of noise processed and process to produce to an identification voice signal that should the writing implement state.This message judging unit 43 mainly is this sound signal processing is become the identification voice signal shown in Fig. 2 B by the program of the step 23 among the step 12 among Figure 1A or Fig. 3.Noise processed unit 42 in the present embodiment, can arrange as required, although in Fig. 9, instructed noise processed unit 42 to be connected between this audio signal reception device 41 and this message processing unit 43, also this audio signal reception device 41 directly can be connected with this message processing unit 43.
See also shown in Figure 10 A, this figure is the identification system synoptic diagram of writing of the present invention.This is write identification system 5 and has the body of writing 50, an audio signal reception device 51, a noise processed unit 52, a message judging unit 53, a motion detection unit 54, a track processing unit 55 and a text-recognition unit 56.This writes body 50, writes to provide the user to be held on the clipboard for a lip pencil element in the present embodiment.Certainly, this writes the structure that body 50 also can be as shown in figure 11.This audio signal reception device 51, it has and a plurality ofly is arranged at this and writes radio reception assembly 510 and 511 on the body, and it can become array to arrange or annular arrangement is write on the body 50 in this.This radio reception assembly 510 and 511 may be selected to be the assemblies such as directional microphone or microphone.This writes the voice signal that body 50 produces these audio signal reception device 51 fechtables when action of writing.
This noise processed unit 52 is electrically connected with this audio signal reception device 51, carries out the processing of filtering noise and sound guiding with the voice signal that this audio signal reception device 51 is captured.Noise processed unit 52 in the present embodiment is identical with noise processed unit 42 functions among the embodiment of Fig. 9, and therefore therefore not to repeat here.This message judging unit 53 is electrically connected with this noise processed unit 52, and this message judging unit 53 can receive this voice signal and process to produce to an identification voice signal (voice signal shown in Fig. 2 B) that should writing book body state.This motion detection unit 54, it can detect this action of writing body to produce a continuous electronic signal.In the present embodiment, this motion detection unit 54 can be by inertia sensing assembly (for example: gyroscope and acceleration transducer), also or image sensing component (CCD or CMOS) or ultrasonic or infrared ray sensor etc.These motion detection unit 54 detected continuous electronic signals can be used to reduce the usefulness of handwriting trace.
This track processing unit 55, it can compare this identification voice signal and this continuous electronic signal, so that corresponding at least one signal that the position was had of writing message in this continuous electronic signal is carried out identification and combination.Shown in Figure 10 B, this figure is track processing unit embodiment synoptic diagram of the present invention.In the present embodiment, this track processing unit 55 has more a signal segmentation arithmetic element 550 and a track arithmetic element 551.This signal segmentation arithmetic element 550, it also will become to this continuous electronic signal segmentation that should at least onely write message at least one sub-electronic signal (result shown in Fig. 6 B) with this identification voice signal with this continuous electronic signal fusing.This track arithmetic element 551, it should at least one sub-electronic signal make up.This track arithmetic element 551 handled results can be with reference to shown in figure 7A and Fig. 7 B.This track arithmetic element 551 can be transferred to this literal identification unit 56 with the result of combination with after the track combination.Generally speaking, this literal identification unit 56 can be arranged in the computer system 6.This literal identification unit 56, it can be according to the result of this identification and combination, and produces corresponding written contents.For example behind the state of this track arithmetic element 551 with the synthetic Fig. 7 B of trajectory set of Fig. 7 A, just this combined result is transferred to this literal identification unit 56, text-recognition unit 56 is the lteral data storehouse that has from it, find out the literal that meets, and the display in this computer system 6 shows.
Return shown in Figure 9ly, this track processing unit 55 can utilize wireless or wired mode to transmit the mode that the signal of handling is transferred to this literal identification unit 56.On the other hand, although track processing unit 55 of the present invention is arranged on this and writes on the body 50, but for the people who is familiar with technique, be easily its change to be arranged in the computer system 6, and directly utilize wireless or wired mode to spread out of to this track processing unit 55 signal that senses by a message judging unit 53 and motion detection unit 54.
The above only is embodiments of the invention, when can not with the restriction scope of the invention.The equalization of namely generally doing according to claim of the present invention changes and modifies, and will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention, and the former capital should be considered as further status of implementation of the present invention.
Comprehensively above-mentioned, action of writing provided by the invention and track discrimination method and writing device and identification system, pick out writing implement and whether be in the state of writing, and further pick out the handwriting trace when writing, to form literal that should handwriting trace.Therefore can improve the competitive power of this industry and drive arround the development of industry, really met the required important document that possesses of patent of invention method defined application invention, so the whence is the application of putting forward patent of invention in accordance with the law.
Claims (10)
1. a handwriting trace discrimination method is characterized in that, includes the following step:
Capture the voice signal that a writing implement produces when writing;
Capture this writing implement and change a continuous electronic signal that produces because of action;
Convert this voice signal to an identification voice signal, it includes at least one message of writing;
Compare this identification voice signal and this continuous electronic signal; And
The signal that in this continuous electronic signal the position that should at least onely write message is had is carried out an identification and combinator;
This identification and combinator more include the following step:
This continuous electronic signal is divided into a trajectory signal and an actuating signal, it is characterized in that, the signal that this trajectory signal has the position that should at least onely write message, this actuating signal is corresponding non-position of writing message;
Determine at least one handwriting trace according to this trajectory signal;
Determine relative position between this at least one handwriting trace according to this actuating signal;
Should at least one handwriting trace with and corresponding relative position make up; And
Result according to this combination carries out text-recognition.
2. handwriting trace discrimination method as claimed in claim 1 is characterized in that, more includes this voice signal is carried out filtering with a step of filtering noise.
3. handwriting trace discrimination method as claimed in claim 1 is characterized in that, changes this voice signal and more includes the following step:
Set a threshold value; And
When this voice signal surpasses the signal of this threshold value, judge then belonging to this writing implement is in the message of writing when writing state, and belongs to the non-message of writing that this writing implement is in mobile status if this voice signal less than this threshold value, is then judged.
4. write identification system for one kind, it is characterized in that, comprising:
One writes body, and it produces an action of writing;
One audio signal reception device, it is arranged at this and writes on the body, and this audio signal reception device captures this and writes the voice signal that produces when body produces action of writing;
One message judging unit, it is connected with this audio signal reception device telecommunications, and this message judging unit receives this voice signal and processes to produce to an identification voice signal that should writing book body state;
One motion detection unit, it detects this action of writing body to produce a continuous electronic signal;
One track processing unit, it compares this identification voice signal and this continuous electronic signal, so that corresponding at least one signal that the position was had of writing message in this continuous electronic signal is carried out identification and combination; And
One text-recognition unit, it is according to the result of this identification and combination, and written contents corresponding to generation;
This track processing unit has more:
One signal segmentation arithmetic element, it also will become at least one sub-electronic signal to this continuous electronic signal segmentation that should at least onely write message with this identification voice signal with this continuous electronic signal fusing; And
One track arithmetic element, it should at least one sub-electronic signal make up.
5. the identification system of writing as claimed in claim 4 is characterized in that, this write bulk state include the state of writing and non-mobile status of writing one of them.
6. the identification system of writing as claimed in claim 4 is characterized in that, has more a noise processed unit that is connected with this audio signal reception device and this message judging unit, with the noise of this voice signal of filtering.
7. the identification system of writing as claimed in claim 6 is characterized in that, has more sound wave in this noise processed unit and points to control module, and its radio reception direction with audio signal reception device is directed to writes the direction that sound occurs.
8. the identification system of writing as claimed in claim 4 is characterized in that, this audio signal reception device has more at least one radio reception microphone.
9. the identification system of writing as claimed in claim 4 is characterized in that, this motion detection unit be chosen as an inertia sensing unit and an image acquisition unit one of them.
10. the identification system of writing as claimed in claim 9 is characterized in that, this inertia sensing unit be chosen as accelerometer, gyroscope and aforesaid combination one of them.
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| CN 200810100443 CN101604212B (en) | 2008-06-11 | 2008-06-11 | Recognition method of writing actions and tracks, writing device and recognition system thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517579A (en) * | 1994-02-04 | 1996-05-14 | Baron R & D Ltd. | Handwritting input apparatus for handwritting recognition using more than one sensing technique |
| US6628847B1 (en) * | 1998-02-27 | 2003-09-30 | Carnegie Mellon University | Method and apparatus for recognition of writing, for remote communication, and for user defined input templates |
| CN1627320A (en) * | 2003-12-10 | 2005-06-15 | 明基电通股份有限公司 | Hand held type electronic equipment possessing inputting function of inducing locus |
| CN1936795A (en) * | 2005-09-23 | 2007-03-28 | 英华达(上海)电子有限公司 | Acceleration sensing measurment type handwriting input device and input method |
-
2008
- 2008-06-11 CN CN 200810100443 patent/CN101604212B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517579A (en) * | 1994-02-04 | 1996-05-14 | Baron R & D Ltd. | Handwritting input apparatus for handwritting recognition using more than one sensing technique |
| US6628847B1 (en) * | 1998-02-27 | 2003-09-30 | Carnegie Mellon University | Method and apparatus for recognition of writing, for remote communication, and for user defined input templates |
| CN1627320A (en) * | 2003-12-10 | 2005-06-15 | 明基电通股份有限公司 | Hand held type electronic equipment possessing inputting function of inducing locus |
| CN1936795A (en) * | 2005-09-23 | 2007-03-28 | 英华达(上海)电子有限公司 | Acceleration sensing measurment type handwriting input device and input method |
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