CN101405686A - Device for generating the signals used for position tracing and the system including the same - Google Patents
Device for generating the signals used for position tracing and the system including the same Download PDFInfo
- Publication number
- CN101405686A CN101405686A CNA2007800096197A CN200780009619A CN101405686A CN 101405686 A CN101405686 A CN 101405686A CN A2007800096197 A CNA2007800096197 A CN A2007800096197A CN 200780009619 A CN200780009619 A CN 200780009619A CN 101405686 A CN101405686 A CN 101405686A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- tracing
- ultrasonic signal
- generation unit
- ultrasound wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- G06F3/033—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
-
- 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
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Position Input By Displaying (AREA)
Abstract
The present invention discloses a position-tracing-signal generating apparatus and an input system including a position-tracing input apparatus for inputting information by tracing the position of the position-tracing-signal generating apparatus. The position-tracing-signal generating apparatus is capable of inputting accurately information on the position-tracing by emitting a ultrasonic-wave signal through a guide path formed between a guide part and a ultrasonic- wave signal generating unit in only a paper surface direction irrespective of usage of the position-tracing-signal generating apparatus by user. In addition, according to the position- tracing-signal generating apparatus of the invention, a plurality of ultrasonic- wave generating members are provided in the ultrasonic- wave signal generating unit, and the ultrasonic- wave generating members sequentially generate ultrasonic- waves in a predetermined time interval calculated based on separation distances between the ultrasonic- wave generating members so that the ultrasonic- wave signal can be amplified through superposition of the ultrasonic waves generated by the ultrasonic-wave generating members. Accordingly, the position-tracing-signal generating apparatus can also stably transmit the ultrasonic-wave signal to an ultrasonic-wave signal receiving sensor disposed at a long distance.
Description
Technical field
The present invention relates to a kind of position-tracing-signal generating apparatus and a kind of input system, this input system comprises the Position Tracking input media that is used for coming by the position of following the tracks of this position-tracing-signal generating apparatus input information.
Background technology
In the Position Tracking Systems input media, the user distinguishes the position and the relevant information of track of the position of the position-tracing-signal generating apparatus that moves and input and this signal generation device.At present, Position Tracking input media and be presented as the nature hand-written input system with the position-tracing-signal generating apparatus that input pen is realized.For convenience of description, mainly the present invention is described based on the example of the natural hand-written input system that constitutes by position-tracing-signal generating apparatus and Position Tracking input media.
Different with the natural hand-written discrimination system of going up realization at handwriting pad personal computer (PC) is, the nature hand-written input system is by based on the time interval computed range between the time point of the time point that receives reference signal at this nature hand-written input system and received ultrasonic signal (by the input pen generation), thereby discerns the coordinate of input pen.In addition, natural hand-written input system is discerned the track of input pen by the moving coordinate that connects input pen.The coordinate and the track of the input pen that the input of nature hand-written input system is discerned.In natural hand-written input system, can use infrared ray (IR) signal or radio frequency (RF) signal as the reference signal.
Fig. 1 is the view that the structure of traditional position-tracing-signal generating apparatus is shown.With reference to figure 1, described position-tracing-signal generating apparatus is embodied in the pattern of pen.The main body of input pen comprises the power supply unit, the reference signal generation unit that is used to produce reference signal that are used to power, be used to the controller that produces the ultrasonic signal generation unit of ultrasonic signal and be used to control described reference signal generation unit and ultrasonic signal generation unit.
In addition, input pen further comprises and is filled with the nib that ink is used for physical record on paper.As an alternative, input pen can comprise and passes main center to improve the nib of hand-written unique feel.Described nib passes columned ultrasonic wave generator unit.Surround the shell and the main body coupling of described ultrasonic wave generator unit and nib.
In addition, as shown in fig. 1, described shell has the hyperacoustic penetrating component that is formed on this shell periphery, is produced by the ultrasonic signal generation unit in order to emission.
Fig. 2 is the view that the use of traditional location tracking signal generation device is shown.With reference to figure 2, the user is writing the literal that will import by making the nib contact on the paper or on the flat surface.
Yet, in the hand-written process of user, although the nib of input pen is positioned on the same point,, owing to direction and the gradient of input pen with respect to the paper surface, the position of ultrasonic signal generation unit can move to position P1, position P2 and position P3.
In this case, as shown in Figure 2, although the distance from the nib of input pen to the ultrasound wave receiving element is identical, because the direction and the gradient of input pen, the Position Tracking input media can identify the different distance of input pen.More specifically, when input pen being positioned at position P1, P2 or P3 when going up, be respectively L1, L2 or L3 by the distance of the input pen of Position Tracking input media identification.These distance errors have caused inaccurate input value.
Especially, when the user changed the vergence direction of input pen fast in hand-written process, the distance between ultrasonic wave generator unit and the Position Tracking input media also can change fast.Therefore, change fast by the position of the input pen of Position Tracking input media identification is same.Like this, can occur with user view irrelevant and produce the problem of incorrect input value.
Summary of the invention
Technical matters
One aspect of the present invention a kind of can import exactly about the information of Position Tracking is provided and with the user to the use of position-tracing-signal generating apparatus irrelevant position-tracing-signal generating apparatus and a kind of Position Tracking input system of using this device.
Technical scheme
According to a first aspect of the invention, provide a kind of position-tracing-signal generating apparatus, this position-tracing-signal generating apparatus comprises: the main body with the ultrasonic signal generation unit that is used to produce ultrasonic signal; And with main body coupling and hold the ultrasonic signal generation unit so that the targeting part that the ultrasonic signal that the ultrasonic signal generation unit is produced is launched along a direction.
The ultrasonic signal generation unit comprises and is used to produce hyperacoustic a plurality of ultrasound wave production part, and described a plurality of ultrasound wave production part produces ultrasound wave, makes it possible to amplify ultrasonic signal by hyperacoustic stack that described ultrasound wave production part produces.
A plurality of ultrasound wave production parts can be configured to the each interval preset distance, and described ultrasound wave production part can with preset time at interval, sequentially produce ultrasound wave make it possible to amplify ultrasonic signal by hyperacoustic stack that described ultrasound wave production part produces.
A described direction of emission ultrasonic signal is the paper surface direction.
Preferably, targeting part comprises the ultrasonic emitting part that is used for along a direction emission ultrasonic signal, and the ultrasonic signal that is produced by described ultrasonic signal generation unit is along the guide path propagation between the inside surface that is formed on described targeting part and the ultrasonic signal generation unit that is contained in the described targeting part, partly to launch from described ultrasonic emitting.
Beneficial effect
As mentioned above, position-tracing-signal generating apparatus according to the present invention is by only launching ultrasonic signal by the guide path that is formed between targeting part and the ultrasonic signal generation unit on the paper surface direction, can import information exactly about Position Tracking, and irrelevant with the user to the use of position-tracing-signal generating apparatus.
In addition, according to position-tracing-signal generating apparatus of the present invention, in the ultrasonic signal generation unit, have a plurality of ultrasound wave production parts, and each ultrasound wave production part makes it possible to amplify ultrasonic signal by hyperacoustic stack that a plurality of ultrasound wave production parts produce with the predetermined time interval that calculates according to the spacing distance between a plurality of ultrasound wave production parts, sequentially produce ultrasound wave.Correspondingly, position-tracing-signal generating apparatus of the present invention can also stably send to ultrasonic signal the ultrasonic signal receiving sensor that is configured in distant location.
Description of drawings
Fig. 1 is the view that the structure of traditional location tracking signal generation device is shown;
Fig. 2 is the view of use that the traditional location tracking signal generation device of Fig. 1 is shown;
Fig. 3 is the view that illustrates according to the structure of the position-tracing-signal generating apparatus of first embodiment of the invention;
Fig. 4 illustrates according to cross sectional view first embodiment of the invention and the targeting part main body coupling;
Fig. 5 is the view that is used to explain according to the input method of first embodiment of the invention;
Fig. 6 is used to explain according to the structure of the Position Tracking signal input apparatus of second embodiment of the invention and the view of operation;
Fig. 7 is used to explain the view of comparing the error of Position Tracking according to the first and second aspects of the present invention with traditional location tracking signal generation device; And
Fig. 8 is used to explain according to the structure of the position-tracing-signal generating apparatus of third embodiment of the invention and the view of operation.
Embodiment
Hereinafter, with preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.
Fig. 3 is the view that illustrates according to the structure of the position-tracing-signal generating apparatus of first embodiment of the invention.With reference to figure 3, described position-tracing-signal generating apparatus comprises main body 200 and the targeting part 300 that is coupled with main body 200.
Controller 210 outputs to ultrasonic signal generation unit 240 and reference signal generation unit 220 with control signal at interval with preset time, makes ultrasonic signal generation unit 240 and reference signal generation unit 220 produce ultrasonic signal and reference signal respectively.
Nib 250 can be formed on the end of ultrasonic signal generation unit 240, so that the unique feel when providing conventional pen hand-written.As an alternative, in order to provide truly hand-written, can insert the nib 250 that is filled with ink in the main bodys 200, pass ultrasonic signal generation unit 240.
In addition, ultrasonic signal generation unit 240 comprises pen core 242, ultrasound wave production part 244, ultrasound wave stop member 246 and support component 248, is used for producing ultrasonic signal according to the control signal of slave controller 210 inputs.
Be formed centrally cylindrical space in the pen core 242 in ultrasonic signal generation unit 240, to hold nib 250.Ultrasound wave stop member 246 is formed from the outstanding predetermined height of pen core 242 peripheries.Therefore, because ultrasound wave stop member 246 adheres to the inside surface of targeting part 300 described later tightly, so ultrasonic signal is only along a direction emission.
Ultrasonic wave generator unit 244 is formed around pen core 242.As an alternative, ultrasound wave production part 244 is arranged in the presumptive area of pen core 242 peripheries.Ultrasonic wave generator unit 244 according to control signal, be converted to vibrational energy by the electric energy that power supply unit 230 is provided and produce ultrasound wave.Preferably, ultrasound wave production part 244 is configured to piezoelectric element such as piezoelectric film etc.
As shown in Figure 3, when the user writes with input pen, preferably ultrasonic signal generation unit 240 is located adjacent to paper surface (for example, input pen than low side).The position of controller 210, reference signal generation unit 220 and power supply unit 230 can be provided with arbitrarily in main body 220.
In addition, targeting part 300 and main body 200 couplings, to surround ultrasonic signal generation unit 240, make the direction (hereinafter, being called the paper surface direction) that contact along nib 250 and paper or flat surface launch ultrasonic signal by 240 generations of ultrasonic signal generation unit.
Targeting part 300 is formed has the space that is used to hold ultrasonic signal generation unit 240.Usually, targeting part 300 forms the shape of corn.In addition, on an end of targeting part 300, form insertion portion or screw thread, thereby connect, be threaded or adhere to connection with targeting part and main body 200 couplings by inserting.In addition, on the other end of targeting part 300, form ultrasonic emitting part 310, so that the emission ultrasonic signal.
Fig. 4 illustrates according to sectional views first embodiment of the invention and targeting parts 300 main body 200 couplings.With reference to figure 4, when ultrasonic signal generation unit 240 inserted in the targeting parts 300, nib 250 passed outside ultrasonic emitting part 310 protrudes in.At this moment, the ultrasound wave stop member 246 of ultrasonic signal generation unit 240 contacts with the inside surface of targeting part 300, thereby can stop the ultrasound wave that is produced by ultrasound wave production part 244, and it is not launched along the direction relative with the paper surface direction.
In addition, under ultrasonic signal generation unit 240 inserts state in the targeting parts 300, between the surface, inside of the pen core 242 of ultrasonic signal generation unit 240 and targeting part 300, form the space of being scheduled to (hereinafter, being called guide path 340).Propagate along guide path 340 by the ultrasound wave that ultrasound wave production part 244b produces, to launch from ultrasonic emitting part 310.
Fig. 5 is the view that is used to explain according to the input method of first embodiment of the invention.
Now, with the operation that is described with reference to Figure 5 according to the input system of first embodiment of the invention.By with targeting part 300 and main body 200 couplings, constituted input pen 400.The controller 210 of input pen 400 produces control signal, and described control signal outputed to ultrasonic signal generation unit 240 and reference signal generation unit 220, this control signal is used to indicate ultrasonic signal generation unit 240 and reference signal generation unit 220 to produce reference signal and ultrasonic signal at interval with preset time.
When slave controller 210 input control signals, reference signal generation unit 220 produces reference signals, and ultrasound wave production part 244 is converted to vibrational energy by the electric energy that power supply unit 230 is provided and produces ultrasound wave.The ultrasound wave that is produced is propagated to launch from ultrasonic emitting part 310 along guide path 340.
Position Tracking input media 450 comprises and is used to a plurality of ultrasonic signal receiving sensor 30a and the 30b that receive the reference signal receiving sensor 40 of reference signal and be used for received ultrasonic signal.At this moment, ultrasonic signal receiving sensor 30a and 30b are configured to the each interval preset distance.
By following equation about x and y is found the solution, can obtain input pen 400 coordinate (x, y).
[equation 1]
a
2＝x
2+y
2
b
2＝(c-x)
2+y
2
In equation 1 since as the IR of reference signal or RF signal with light velocity propagation, can think that therefore produce in IR or the RF signal, this IR or RF signal are promptly received by reference signal receiving sensor 40 in input pen 400.For this reason, by multiply by the velocity of sound, can obtain apart from a and b in the time interval between the time of reception point of time of reception point that receives reference signal by left side and right side ultrasonic signal receiving sensor 30a and 30b and received ultrasonic signal.Because distance c is predetermined value, by being applied to equation 1 apart from the value of a, b, c, can obtain coordinate (x, y).Therefore can import user's handwritten content based on the moving coordinate of input pen 400 such as literal etc.
Yet according to first embodiment of the invention, when the ultrasonic signal that is produced by ultrasonic signal generation unit 240 entered into the inside surface of the targeting part 300 that constitutes guide path 340, the intensity of ultrasonic signal can decay.Therefore, compare with the initial ultrasound ripple signal that is produced by ultrasonic signal generation unit 240, the intensity of the ultrasonic signal of partly launching from ultrasonic emitting also can significantly decay.Therefore, under certain user's environment when between input pen 400 and ultrasonic signal receiving sensor 30a and the 30b during distance, following problem may take place.That is to say that ultrasound wave receiving sensor 30a and 30b be the ultrasonic signal of receiving attenuation exactly, thereby can not follow the tracks of the position of input pen 400 exactly.
Compare with the first embodiment of the present invention, the second embodiment of the present invention provides a kind of position-tracing-signal generating apparatus of improvement.Except ultrasonic signal generation unit 240, have the structure identical with the first embodiment of the present invention according to the Position Tracking signal input apparatus of second embodiment of the invention.Therefore, the structure of ultrasonic signal generation unit is hereinafter only described.
Fig. 6 is used to explain according to the structure of the Position Tracking signal input apparatus of second embodiment of the invention and the view of operation.According to second embodiment, ultrasonic signal generation unit 240 comprises a plurality of ultrasound wave production part 244-2a and 244-2b, to substitute single ultrasound wave production part 244.With reference to figure 6, in ultrasonic signal generation unit 240, the center each interval preset distance L4 of two ultrasound wave production part 244-2a and 244-2b.
When slave controller 210 input control signals during to ultrasonic signal generation unit 240, the first ultrasound wave production part 244-2a that is positioned at from ultrasonic emitting part 310 maximum distance places produces ultrasound wave.More specifically, shown in Reference numeral 501, propagate towards ultrasonic emitting part 310 by the ultrasound wave (a) that the first ultrasound wave production part 244-2a produces.When ultrasound wave (a) had been propagated preset distance L4 shown in Reference numeral 502, the second ultrasound wave production part 244-2b that is positioned at from ultrasonic emitting part 310 minimum distance places produced ultrasound wave (b) shown in Reference numeral 503.
At this moment, ultrasound wave (b) mutual superposition of ultrasound wave of Reference numeral 502 (a) and Reference numeral 503, thus can produce the ultrasonic signal (a+b) of the amplification shown in Reference numeral 504.The ultrasonic signal of described amplification is launched by ultrasonic emitting part 310, and is received by the ultrasonic signal receiving sensor.
Although two ultrasound wave production part 244-2a and 244-2b have been shown among Fig. 6, three or more ultrasound wave production parts of each interval preset distance can be set.In addition, can be by producing the ultrasonic signal of amplification according to the distance at interval, the ultrasound wave that produces with preset time intervening sequences ground.
Fig. 7 be used to explain with traditional location tracking signal generation device compare, view that position-tracing-signal generating apparatus is according to the first and second aspects of the present invention carried out the error of Position Tracking.With reference to figure 7, based on the center of the conventional ultrasonic wave production part shown in Fig. 2 and the calculated distance error approximately is L6.Yet, under situation according to position-tracing-signal generating apparatus of the present invention, owing to only launch ultrasonic signal by ultrasonic emitting part 310 near the paper surface, therefore, with respect to direction and the gradient of nib 250 with the surperficial same position that contacts of paper, distance error approximately is L7 according to input pen.Can visually see, compare with traditional distance error L6, distance error L7 according to the present invention has reduced significantly.
Fig. 8 is used to explain according to the structure of the position-tracing-signal generating apparatus of third embodiment of the invention and the view of operation.
Except from position-tracing-signal generating apparatus 400, having omitted controller 210 and reference signal generation unit 220, have the structure identical with first and second embodiment according to the position-tracing-signal generating apparatus of the 3rd embodiment.
Except not comprising controller 210 and reference signal generation unit 220, be: in main body 200, comprise power supply unit 230, ultrasonic signal generation unit 240 and nib 250 and hold the targeting part 300 and main body 200 couplings of ultrasonic signal generation unit 240 according to the something in common of the structure of the structure of the position-tracing-signal generating apparatus of third embodiment of the invention and first and second embodiment.Yet, be according to the structure of the position-tracing-signal generating apparatus of the 3rd embodiment and the difference of first and second embodiment: be used for ultrasonic signal generation unit 240 by cable from 450 inputs of Position Tracking input media and produce hyperacoustic control signal.Therefore, structure and the operation different with the present invention first and second embodiment are hereinafter only described.
With reference to figure 8, according to the position-tracing-signal generating apparatus 400 of third embodiment of the invention by cable and 450 couplings of Position Tracking input media.Position Tracking input media 450 produces control signal and described control signal is outputed to position-tracing-signal generating apparatus 400 (hereinafter, being called input pen), and this control signal indication input pen 400 produces ultrasonic signal at interval with preset time.
The input pen 400 that receives input control signal produces ultrasonic signal, and by ultrasonic emitting part 310 emission ultrasonic signals.Described ultrasonic signal receives by a plurality of ultrasonic signal receiving sensors that are arranged in the position tracking input media 450.
Position Tracking input media 450 be provided with control signal is outputed to input pen 400 time as the reference time, this control signal is used for indication and produces ultrasonic signal.Position Tracking input media 450 is measured the position of input pen 400 in the mode identical with first and second embodiment, by the time interval of using the time of reception point from the reference time to a plurality of ultrasonic signal receiving sensor received ultrasonic signals.
Although illustrate and described the present invention particularly with reference to exemplary embodiment of the present invention, the various variations that one skilled in the art will appreciate that in form and details to be done do not break away from the spirit and scope of claims definition.Will be understood that this exemplary embodiment only is descriptive, rather than the purpose that is used to limit.Therefore, scope of the present invention does not define by detailed description of the present invention, but defines by claims, and the institute in this scope has any different and should be considered as comprising in the present invention.
Claims (5)
1. position-tracing-signal generating apparatus comprises:
Main body with the ultrasonic signal generation unit that is used to produce ultrasonic signal; And
With main body coupling and hold the targeting part that described ultrasonic signal generation unit makes that the ultrasonic signal that produced by described ultrasonic signal generation unit is launched along a direction.
2. position-tracing-signal generating apparatus according to claim 1,
Wherein, described ultrasonic signal generation unit comprises and is used to produce hyperacoustic a plurality of ultrasound wave production part, and
Wherein, described a plurality of ultrasound wave production parts produce ultrasound wave, make it possible to amplify described ultrasonic signal by hyperacoustic stack that described a plurality of ultrasound wave production parts produce.
3. position-tracing-signal generating apparatus according to claim 2,
Wherein, described a plurality of ultrasound wave production parts are configured to the each interval preset distance, and
Wherein, described a plurality of ultrasound wave production parts produce ultrasound wave with preset time intervening sequences ground, make it possible to amplify described ultrasonic signal by hyperacoustic stack that described ultrasound wave production part produces.
4. position-tracing-signal generating apparatus according to claim 1,
Wherein, a described direction of launching described ultrasonic signal is the paper surface direction.
5. position-tracing-signal generating apparatus according to claim 1,
Wherein, described targeting part comprises and is used for the ultrasonic emitting part of launching described ultrasonic signal along a described direction, and
Wherein, the ultrasonic signal that is produced by described ultrasonic signal generation unit is along the guide path propagation between the inside surface that is formed on described targeting part and the ultrasonic signal generation unit that is contained in the described targeting part, partly to launch from described ultrasonic emitting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060075745A KR20080014273A (en) | 2006-08-10 | 2006-08-10 | Device for generating the signals used for position tracing and the system including the same |
| KR1020060075745 | 2006-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101405686A true CN101405686A (en) | 2009-04-08 |
Family
ID=39033239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800096197A Pending CN101405686A (en) | 2006-08-10 | 2007-08-08 | Device for generating the signals used for position tracing and the system including the same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20080014273A (en) |
| CN (1) | CN101405686A (en) |
| WO (1) | WO2008018757A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354920A (en) * | 2011-02-15 | 2013-10-16 | Pnf有限公司 | Information input device and method for performing auto switching between an information input mode using a touch panel and an information input mode using an ultrasonic signal |
| CN105492923A (en) * | 2013-09-03 | 2016-04-13 | 高通股份有限公司 | Acoustic position tracking system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5705548B2 (en) | 2008-01-03 | 2015-04-22 | クアルコム，インコーポレイテッド | Ultrasonic digitizer and host |
| KR100940307B1 (en) * | 2008-01-15 | 2010-02-05 | (주)펜앤프리 | Method and apparatus for measuring position of the object using microphone |
| KR101379357B1 (en) * | 2012-02-17 | 2014-03-28 | 주식회사 피엔에프 | Position information inputting keyboard and keyboard system |
| CN105867704B (en) * | 2016-05-18 | 2018-12-18 | 成都吉锐时代触摸技术有限公司 | Writing system based on ultrasonic Lamb waves |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308936A (en) * | 1992-08-26 | 1994-05-03 | Mark S. Knighton | Ultrasonic pen-type data input device |
| JPH09167046A (en) * | 1995-12-18 | 1997-06-24 | Fuji Xerox Co Ltd | Ultrasonic stylus pen |
| WO2004010592A2 (en) * | 2002-07-22 | 2004-01-29 | Measurement Specialties, Inc. | Handheld device having ultrasonic transducer for axial transmission of acoustic signals |
| KR20050047314A (en) * | 2003-11-17 | 2005-05-20 | 한국흑판교재주식회사 | Method for recognizing a pen-mouse of an electronic blackboard and system |
-
2006
- 2006-08-10 KR KR1020060075745A patent/KR20080014273A/en not_active Application Discontinuation
-
2007
- 2007-08-08 WO PCT/KR2007/003820 patent/WO2008018757A1/en active Application Filing
- 2007-08-08 CN CNA2007800096197A patent/CN101405686A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354920A (en) * | 2011-02-15 | 2013-10-16 | Pnf有限公司 | Information input device and method for performing auto switching between an information input mode using a touch panel and an information input mode using an ultrasonic signal |
| CN103354920B (en) * | 2011-02-15 | 2016-06-22 | Pnf有限公司 | For performing information input equipment and the method for the automatic switchover between the information input pattern and the information input pattern using ultrasonic signal of use touch screen |
| CN105492923A (en) * | 2013-09-03 | 2016-04-13 | 高通股份有限公司 | Acoustic position tracking system |
| CN105492923B (en) * | 2013-09-03 | 2018-11-27 | 高通股份有限公司 | acoustic position tracking system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080014273A (en) | 2008-02-14 |
| WO2008018757A1 (en) | 2008-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102508270B1 (en) | Stylus for electronic devices | |
| CN101405686A (en) | Device for generating the signals used for position tracing and the system including the same | |
| CN103455171B (en) | A kind of three-dimensional interactive electronic whiteboard system and method | |
| CN103890701B (en) | Method and apparatus for active ultrasonic touching device | |
| IL137060A (en) | Pen positioning system | |
| CN108351711A (en) | Digitize apparatus for writing | |
| JP5411359B2 (en) | Signal generator | |
| CN103354920B (en) | For performing information input equipment and the method for the automatic switchover between the information input pattern and the information input pattern using ultrasonic signal of use touch screen | |
| CN104169847A (en) | Localized haptic feedback | |
| KR20140038325A (en) | Position detecting device | |
| WO2019019606A1 (en) | Ultrasonic touch apparatus and method, and display apparatus | |
| CN101398720A (en) | Pen interactive device | |
| CN105700716A (en) | Novel electromagnetic touch pen and method for collecting work direction and angle thereof | |
| JP2007004614A (en) | Coordinate input pen and coordinate input device provided with the same | |
| CN105807990A (en) | Display screen, touch pen and display module | |
| CN102736746A (en) | Electronic pen and projector system using the same | |
| CN102207801A (en) | Three-dimensional hand-writing input device and hand-writing input method | |
| CN105849682A (en) | Ghost suppression using hybrid capacitive sensing | |
| US20090009490A1 (en) | Ultrasonic input device for information display | |
| JP2009134505A (en) | Handwriting input system | |
| CN105786222A (en) | Ultrasonic induction writing method and system, intelligent terminal and writing end | |
| CN101976158B (en) | Ultrasonic wave/infrared combined locating device and locating method thereof | |
| JP4145095B2 (en) | Coordinate input device | |
| CN101556511A (en) | Position tracking signal generator unit and input system provided with same | |
| JP2009085635A (en) | Handwriting input system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |