WO2013005949A2 - Dispositif de reconnaissance tactile multipoint - Google Patents

Dispositif de reconnaissance tactile multipoint Download PDF

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Publication number
WO2013005949A2
WO2013005949A2 PCT/KR2012/005172 KR2012005172W WO2013005949A2 WO 2013005949 A2 WO2013005949 A2 WO 2013005949A2 KR 2012005172 W KR2012005172 W KR 2012005172W WO 2013005949 A2 WO2013005949 A2 WO 2013005949A2
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WIPO (PCT)
Prior art keywords
touch
axis
measurement signal
equation
coordinates
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PCT/KR2012/005172
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English (en)
Korean (ko)
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WO2013005949A3 (fr
Inventor
안석민
한홍희
정구범
Original Assignee
주식회사 알엔디플러스
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Priority claimed from KR1020110088772A external-priority patent/KR101260341B1/ko
Application filed by 주식회사 알엔디플러스 filed Critical 주식회사 알엔디플러스
Priority to CN201280032015.5A priority Critical patent/CN103649877B/zh
Priority to US14/130,454 priority patent/US9292132B2/en
Priority to JP2014518810A priority patent/JP5757004B2/ja
Publication of WO2013005949A2 publication Critical patent/WO2013005949A2/fr
Publication of WO2013005949A3 publication Critical patent/WO2013005949A3/fr

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    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen

Definitions

  • the touch measurement signal can be distinguished from the actual touched position and the virtually touched virtual image in the touch screen device for measuring the position of various objects by determining the path of infrared rays on the touch surface through infrared rays.
  • the present invention relates to a multi-touch recognition device that improves the touch measurement operation speed so that a user can accurately recognize a touch position even if the touch position changes rapidly.
  • Infrared touch measures the position of the object according to whether or not it is received by the infrared radiation by the object by the array of infrared transmitter touch signal measuring unit arranged.
  • the infrared signal used in this method radiates an AC signal of tens to hundreds of KHz, and then measures the magnitude of the signal by averaging the collected AC signals according to the presence or absence of an object.
  • This method introduces limitations in sensitivity and overall response speed due to the time for averaging the collected alternating signals and the remarkable degradation of the frequency response of the infrared touch measurement signal receivers by high frequency signals. Interfering with each other, the receiver cannot expect to receive the correct signal, and therefore, it is impossible to calculate the exact coordinates, and when the infrared signal is emitted between the light emitting unit and the light receiving unit, it is impossible to determine the presence or absence of an object in the hidden coordinates. There was a problem that virtual image coordinates are generated.
  • Korean Patent No. 10-1018397 proposes an apparatus and a method for removing a virtual image, and accordingly, multi-touch is detected after performing a first scan control mode to remove the virtual image. If so, the second scan control mode must be performed separately.
  • FIG. 14 is a schematic configuration diagram of an infrared touch screen device capable of removing a virtual image disclosed in Korean Patent No. 10-1018397.
  • the second scan control mode is driven to determine a virtual image of the multi-touch. If the multi-touch moves frequently or quickly, even if a new multi-touch occurs while the second scan control mode is performed, the second scan control mode is in progress and thus the new scan is not switched to the first scan control mode. There is a problem that can not measure the multi-touch.
  • the present invention has been proposed to solve the above problems, and to provide a multi-touch recognition device capable of distinguishing a position of a virtual image from a position actually touched when a multi-touch occurs in the touch screen device.
  • the present invention has been proposed to solve the above problems, to provide a multi-touch recognition device that can distinguish the virtual image by using the inclination angle measurement method.
  • the present invention is to provide a multi-touch recognition device that minimizes the time for measuring the touch position.
  • a multi-touch recognizing apparatus including: a plurality of transmitter group units grouping a touch measurement signal transmitter for transmitting radially continuous touch measurement signals toward a receiving module group unit; A plurality of receiving module group units having a plurality of receiving modules having at least three or more receiving modules to simultaneously receive the measurement signals transmitted from the transmitter group unit at right, acute, and obtuse angles at respective right, acute, and obtuse angles; A transmitter driving clock unit providing a driving clock to simultaneously drive touch measurement signal transmitters having the same index included in each of the transmitter group units; A control unit for calculating a size of an x, y coordinate or diameter of the touch area using the touch measurement signals received by the plurality of receiving module group units; And a touch panel configured to receive a touch input from the user.
  • Another multi-touch recognition device for achieving the above object is a transmitting module including one or more transmitting elements for radially transmitting a touch measurement signal including a pulse;
  • a receiving module including one or more receiving elements for receiving the touch measurement signal transmitted from the transmitting module;
  • a controller configured to calculate a size of a coordinate or diameter of a touch area from the touch measurement signal received by the receiving module;
  • a touch panel configured to receive a touch input from a user, wherein the receiving device positioned at right, obtuse, and acute angles of the touch measurement signals radially transmitted from the transmitting device receives the touch signals at right, acute, or obtuse angles continuously. Characterized in that the multi-touch recognition device.
  • the multi-touch recognizing apparatus having the above-described configuration can effectively distinguish between the position of the multi-touch and the position of the virtual image when the multi-touch occurs in the multi-touch screen device, and the multi-touch of the tilt angle measuring method.
  • the position measuring method and the reference coordinate calculation method it is possible to efficiently distinguish the virtual image, and by minimizing the time for measuring the multi-touch position, it is possible to effectively measure the multi-touch even if it moves or changes quickly.
  • FIG. 1 is a schematic block diagram of a multi-touch recognition device according to an embodiment of the present invention.
  • FIGS. 2 to 3 are diagrams for explaining a principle of recognizing touch points in the multi-touch recognition apparatus according to the present invention.
  • FIG. 4 is another diagram for describing a principle of recognizing a touch point when a specific touch transport module has failed in the multi-touch recognition device according to the present invention.
  • FIG. 5 is a flowchart illustrating a process of distinguishing a point actually touched and a touch point of a virtual image in the multi-touch recognition apparatus according to the present invention.
  • FIG. 6 is a view for explaining the principle of removing the virtual image by the transmission angle of the touch measurement signal transmission unit in the multi-touch input position recognition apparatus according to the present invention.
  • FIG. 7 to 10 are views for explaining a process of removing a virtual image by the transmission angle of the touch measurement signal transmission unit in the multi-touch recognition device according to the present invention.
  • FIG. 11 is a block diagram illustrating a touch measurement signal receiver in a modular form according to another exemplary embodiment of the multi-touch recognition apparatus according to the present invention.
  • FIG. 12 is a diagram for describing an operation of a multi-touch recognition device including a touch measurement signal receiver in a modular form of the present invention.
  • 13 is a view for explaining the principle that the receiver module is interlocked with each other in the adjacent transport module group.
  • FIG. 14 is a schematic configuration diagram of a multi-touch screen device according to the prior art.
  • FIG. 1 is a schematic configuration diagram of a multi-touch device according to the present invention.
  • Multi-touch recognition device X-axis touch measurement signal receiver 110, X-axis touch measurement signal transmitter 120, Y-axis touch measurement signal receiver 130, Y-axis touch measurement signal transmitter 140, an X-axis receiver driver 111, an X-axis transmitter driver 121, a Y-axis receiver driver 131, a Y-axis transmitter driver 141, and a controller 230.
  • At least two or more X-axis touch measurement signal receivers 110 are continuously arranged to form an entire receiver to receive infrared rays transmitted from the transmitter. At least two or more X-axis touch measurement signal transmitters 120 are continuously arranged to transmit the touch measurement signal to the touch plane at the X-axis touch measurement signal receiver 110.
  • At least two or more Y-axis touch measurement signal receivers 130 are continuously arranged to form an entire receiver to receive infrared rays transmitted from the transmitter. At least two or more Y-axis touch measurement signal transmitters 140 are continuously arranged to transmit a touch measurement signal to the touch plane at the Y-axis touch measurement signal receiver 130.
  • the X and Y axis transmitter drivers 121 and 141 drive the X and Y axis touch measurement signal transmitters 120 and 140 at regular time intervals to convert touch measurement signals, for example, infrared signals, into the touch plane of the multi-touch screen.
  • the X, Y-axis receiver drivers 121 and 141 drive the X- and Y-axis touch measurement signal receivers 110 and 130 at regular time intervals, for example, an infrared signal and an external noise signal. For example, it may receive sunlight, low frequency noise, and the like.
  • the infrared signal is exemplified as the touch measurement signal, it should be noted that the RF signal and the LED emission signal may also be used as the touch measurement signal.
  • FIG. 1 illustrates a structure in which a transmitter and a receiver are disposed to face each other, that is, a structure in which only one transmitting module is arranged on one side and only a receiving module is arranged on the other side, but the transmitting and receiving modules are alternately arranged on both sides as necessary. Note that it is also possible.
  • the controller 150 processes the touch measurement signal received by the X-axis touch measurement signal receiver 110 and the Y-axis touch measurement signal receiver 130 to calculate characteristics of the touched point on the touch panel by the user.
  • the diameter may be calculated as an example of the size of the touched point as well as the coordinates of the X-axis and the Y-axis.
  • the entire X-axis touch measurement signal receiver 110 and the X-axis touch measurement signal transmitter 130 according to the present invention include N transmitters and receivers on the horizontal axis, and Y-axis touch measurement signal receiver 120 and Y-axis touch measurement.
  • the signal transmitter 140 has M transmitters and receivers arranged on the vertical axis.
  • the X-axis touch measurement signal receiver 110 and the X-axis touch measurement signal transmitter 130 are alternately arranged, the X-axis touch measurement signal receiver 110 and the X-axis touch measurement signal transmitter 130
  • the total number of N is 2N, N is arranged on one side of the horizontal axis, N is arranged on the other side of the horizontal axis, the number of Y-axis touch measurement signal receiver 120 and Y-axis touch measurement signal transmitter 140
  • the sum total is 2M and M pieces are arranged on one side of the vertical axis and M pieces are arranged on the other side of the vertical axis.
  • the multi-touch recognition apparatus having the above structure, a method of calculating the characteristics of the touch point, that is, the coordinates and the size of the touch area, will be described.
  • the magnitude of the infrared light received by the horizontal axis (X-axis) touch measurement signal receiver facing each other is X (0)
  • the magnitude of the infrared light received by the second touch measurement signal receiver is X (1)
  • the third touch measurement signal is X (2)
  • the size of the infrared light received at the receiving unit of the kth receiving module is X (k-1)
  • the size of the infrared light received at the receiving unit of the Nth receiving module is X ( N-1).
  • the amount of infrared light received by the receiver of the receiving module is Y (0)
  • the amount of infrared light received by the receiver of the second receiving module is Y (1)
  • the infrared light is received by the receiver of the third receiving module.
  • the size of the light is defined as Y (2)
  • the size of the infrared light received at the receiving unit of the kth receiving module is Y (k-1)
  • the size of the infrared light received at the receiving unit of the Mth receiving module is defined as Y (M). .
  • Each X-axis touch measurement signal receiver receives 0 to N-1th values and Y (k) from 0 to M to determine whether the touch measurement signal sent from the transmitter to recognize the touch input has been interfered by the object. Perform a scan that sequentially measures the -1 value.
  • k is 1 to N for the X axis and 1 to N for the X axis.
  • the entire touch measurement signal receiver receives the received value of the touch measurement signal according to each scan and uses this value to multiply the objects that obstruct the movement of the touch measurement signal transmitted by the touch measurement signal transmitter. Find the coordinates and diameters of these objects.
  • the received value of the touch measurement signal is normalized through equations (1) through (2).
  • n is a natural number such as 1 or 2, which determines whether the response of the noise component of the signal is linear or nonlinear.
  • n 1
  • n> 1 is an advantageous measurement method when there are many base noise signals.
  • G is a scaling value and is generally set to 1 or 100.
  • the measured value obtained in Equation 1 is a normalized value of the measured value on the X axis.
  • the Y-axis can also be obtained in the same way as the X-axis.
  • the measured value obtained in Equation 2 is a normalized value of the measured value on the Y axis.
  • X max and Y max are defined as the largest values of the touch signals measured on the X and Y axes, respectively.
  • the X coordinate corresponding to the nth is obtained by the following equation (3), and the Y coordinate is obtained by the following equation (4).
  • I is a natural number from 0 to N
  • j is a natural number from 0 to M
  • w is the number of X-axis touch area receivers
  • h is the number of Y-axis touch area receivers.
  • the diameter of the X coordinate corresponding to the nth is obtained by the following equation (5)
  • the diameter of the Y coordinate is obtained by the following equation (6).
  • I is a natural number from 0 to N
  • j is a natural number from 0 to M
  • w is the number of X-axis touch area receivers
  • h is the number of Y-axis touch area receivers.
  • N x (k) and N y (k) which are normalized measured values measured by the touch measurement signal receiver, are calculated, and this value is the first reference value. Measure the case of greater than T lower , wherein at least one of these values is from the equations 3 to 3 from successive values that meet the conditions of the second reference value T higher > N x (k), N y (k) Find the coordinates and diameter through 6.
  • the validity of the touch coordinate may be determined by measuring a probability density value in the touched area.
  • the probability density measurement values of the touch area are defined as shown in Equations 7 and 8.
  • the values determined by the specific probability density function according to Equations 7 and 8 may be set to the first reference value T lower and the second reference value T higher used in Equations 3 to 6.
  • FIG. 2 to 3 are diagrams for explaining a principle of recognizing touch points in a multi-touch recognition apparatus according to the present invention
  • FIG. 5 is a diagram illustrating a method of distinguishing a touch point from a virtual touch point according to a first embodiment of the present invention. A flow chart showing the process.
  • the touch measurement signal receiver measures a maximum value of the touch measurement signals transmitted from the touch measurement signal transmitter, that is, values corresponding to X max (k) and Y max (k) (S501).
  • step S502 It is determined whether the measurement of X max (k) and Y max (k) is completed, and when it is completed (step S502), the process moves to step S503.
  • the measurement value is considered to be that an object that obstructs infrared rays does not exist on the touch surface.
  • each touch measurement signal receiver measures X (k) and Y (k).
  • step S504 If it is determined in step S504 whether the measurement is complete, and moves to step S505.
  • n is the number of coordinates and diameters of the touch points obtained on the X axis
  • m is the number of coordinates and diameters of the touch points obtained on the Y axis
  • i is an index of the sensor part value X (k) of the X axis from 0.
  • N is the index of the sensor unit value Y (k) on the Y axis from 0 to M
  • S is the maximum resolution of the screen.
  • step S506 the equations (1) and (2) are calculated.
  • step S507 the normalized N x (k) and N y (k) are calculated, and the corresponding value for calculating the case where the value is larger than the first reference value T lower is moved to step S511. If it is not greater than the first reference value T lower , the flow proceeds to step S508.
  • step S508 it is determined whether the W and H values are zero, and if it is not zero, it is determined that there is a press on the touch and moves to step S514 for final coordinate calculation. If zero, go to step S509.
  • step S509 W and H are initialized, and x (n) and y (m) are calculated using Equations 3 and 4 above.
  • step S510 W and H are initialized, and dx (n) and dy (m) are calculated by using Equations 5 and 6.
  • step S511 when the first reference value T lower among the N x (k) and N y (k) values measured in step S507 is determined to be an interference to the touch measurement signal, the values of w and h are increased by one. .
  • step S512 if the calculated coordinates and diameters are limited, for example, a condition that is not recognized as a touch by one or more limitations of a specific diameter is determined, and if the determination result is satisfied, the process moves to step S513. Delete the coordinate information and go to step S514.
  • the condition measurement may be a determination condition as in Equations 7 and 8 above.
  • step S513 the index values of n and m are increased by one, and in step S514, the index values of i and j are increased by one.
  • the measurement of the touch measurement signal is completed at the coordinate of n ⁇ m, and only the coordinates of the actual touch point are distinguished by removing the virtual image from which the presence or absence of an object cannot be measured.
  • step S508 it is determined whether the W and H values are zero, and if it is not zero, it is determined that there is a press on the touch and moves to step S514 for final coordinate calculation. If zero, go to step S509.
  • the coordinates are transmitted to the information device and the process moves to step S503 to measure new coordinates.
  • step S501 If the touch-up continues for a certain time, the process moves to step S501 to re-measure X max (k) and Y max (k), otherwise go to step S503.
  • Sx (i) and Sy (i) are matching filters of a predefined matching touch pattern
  • l is a sampling number of the matching filter
  • the reason for applying the matching filter as described above is to improve the recognition rate of the touch area by allowing only a specific touch pattern among the measured touch area values to be recognized as a touch.
  • FIG. 4 is another diagram for describing a principle of recognizing a touch point when a specific touch transport module is faulty in the multi-touch input location recognizing apparatus according to the present invention.
  • FIG. 6 is a diagram illustrating a principle of removing a virtual image by a transmission angle of a touch measurement signal transmitter in the multi-touch recognition apparatus according to the first embodiment of the present invention.
  • FIG. 7 to 10 illustrate a process of removing a virtual image by a transmission angle of a transmission measurement signal transmission unit in a multi-touch recognition apparatus according to a first embodiment of the present invention.
  • a method of determining whether there is an object in the path at the transmission angle of the touch measurement signal transmitting unit as shown in FIG. 6 and measuring the third coordinate will remove the virtual image.
  • the virtual image removal method is processed in step S515 of FIG. 7.
  • the touch measurement signal receiver that receives the transmitted touch measurement signal measures X (k) by scanning at an oblique angle so as to be the k-th.
  • the touch measurement signal receiver that receives the infrared radiation is scanned at an oblique angle to be k + d-th, and measures X (k + d).
  • the distance from the touch measurement signal receiver of the area actually touched. It describes a method of removing a virtual image by determining whether the object is obstructed or not, and measuring the third coordinates described below.
  • the virtual image removal method is processed in step S715 of FIG. 7.
  • the receiver receiving the transmitted touch measurement signal scans at an oblique angle so as to be k-th, and measures.
  • the receiver when the touch measurement signal is transmitted from the k-th touch measurement signal transmitter, the receiver measures the touch position by scanning at an oblique angle so as to be the k + d-th.
  • distances from the touch measurement signal receiver of the area actually touched in FIG. 7 are y (n), y (n + 1) [ yT (n), y T + 1 (n) in FIG. 7, respectively). Is obtained by the following equations (11) and (12), respectively.
  • W T S / d
  • S is the resolution of the X axis
  • d is a factor that determines the angle of the comb angle when scanning with the comb.
  • the touch measurement signal is transmitted in the perpendicular direction to measure the coordinates of the touch area.
  • the Cartesian coordinates of A, B, C, and D are measured without distinguishing the virtual image B.
  • FIGS. 9 and 10 show actual oblique angles. Multi-point scanning with a signal shows that only the touch objects A, C, and D are measured, but the virtual image B is not measured.
  • the touch measurement signal is transmitted from the touch measurement signal transmitter so as to have an oblique angle to the left direction, that is, the touch measurement signal has an obtuse angle with respect to the lower surface of the receiver, and the touch measurement transmitted from the touch measurement signal transmitter
  • the coordinates of the touch area are measured by scanning the signal.
  • the slope coordinates corresponding to the coordinates including the virtual image measured through the rectangular coordinates are calculated by the following equations (13) and (14).
  • the rectangular coordinates are rectangular coordinates [x 0 (n) and y 0 (m)] measured when the touch object is actually scanned at right angles as shown in FIG. 8.
  • the tilt coordinates (X TC , Y TC ) corresponding to the coordinates including the virtual image are touch objects when the rectangular coordinates [x 0 (n) and y 0 (m)] are simulated as shown in FIGS. 9 and 10. Is converted to the slope coordinate (X TC , Y TC ) that is expected to exist through the equation. That is, the following equation is converted to the slope coordinate including the virtual image included in the rectangular coordinates.
  • x o (n) and y o (n) are coordinates including the virtual image obtained through orthogonal scanning
  • X c and Y c denote the number of touch measurement signal receivers used.
  • D xr (n) and D yr (n) are greater than a certain threshold, the coordinates are determined to correspond to the virtual image.
  • the specific limit value above is determined in advance according to the density of the infrared receiver sensor used.
  • the touch measurement signal is transmitted from the touch measurement signal transmitter so that the touch measurement signal has an acute angle with respect to the lower surface of the receiver, and the touch measurement signal receiver scans the received touch measurement signal.
  • the coordinates of the touch area can be measured.
  • the slope coordinates X TC and Y TC corresponding to the coordinates including the virtual image measured through the rectangular coordinates [x o (n), y o (m)] are calculated by Equations 17 and 18 below.
  • Equation 19 The distance between the calculated values (X TC , Y TC ) and the coordinates (X T, Y T ) obtained through scanning by the touch measurement signal transmitted at an oblique angle is measured by Equations 19 and 20 below.
  • D xl (n) and D yl (n) are greater than a certain threshold, the coordinates are determined to correspond to the virtual image.
  • the specific limit value above depends on the density of the infrared receiver sensor used.
  • x o (n) and y o (m) are coordinates including a virtual image obtained through orthogonal scanning
  • Xc and Yc mean the number of touch measurement signal receivers used.
  • the touch measurement signal transmitted from the touch measurement signal transmitter is transmitted at a right angle with respect to the surface connected to the touch measurement signal receiver and the receiver in one touch measurement signal transmitter. Care should be taken that the signal and the oblique (oblique or acute) touch signal are transmitted continuously.
  • the touch measurement signals of the right angle are continuously transmitted from all the touch measurement signal transmitters, and then the touch measurement signals of the oblique angle are continuously transmitted again from all the touch measurement signal transmitters.
  • the transmitter transmits the right angle touch measurement signal and the oblique angle touch measurement signal radially at the same time, and the coordinate or diameter of the touch is received by the touch measurement signal received at the receiver at a predetermined angle, that is, an obtuse angle, a right angle, and an acute angle with respect to the corresponding transmitter.
  • the difference is that it computes.
  • FIG. 11 is a block diagram of a multi-touch input position recognizing apparatus including a touch measurement signal receiver in a modular form according to a second embodiment of the present invention
  • FIG. 12 is a multi-touch structure including a touch measurement signal receiver in a modular form according to a second embodiment of the present invention.
  • the touch position measuring signal transmitted from the touch measuring signal transmitting unit 1160 is radially transmitted at a predetermined angle from the touch measuring signal transmitting unit 1160 and is previously.
  • the touch measurement signal transmitter 1160 also forms a transmitter group unit 1120 by tying a predetermined number of touch measurement signal transmitters 1160.
  • the receiver modules A, B, and C each use a touch measurement signal received by the touch measurement signal receiver 1140 included in each receiver module by one receiver module signal converter 1131, 1132, and 1133 as voltage signals. Convert.
  • the receiver modules A, B, and C are respectively connected to the A / D converters 1150 for converting voltage signals, which are analog signals, into digital signals, respectively, and output the received values of the touch position measurement signals converted to digital values to the controller. .
  • the transmission driving clock outputs the transmission driver driving clock 1180 such that the touch measurement signal transmission unit 1160 of the same index included in the transmission group group 1120 is simultaneously driven.
  • the driving clock 1180 of the transmission driving clock unit is supplied to the transmission driver 1170 to drive the touch measurement signal transmitter 1160 to radiate the touch measurement signal radially at a predetermined angle.
  • the entire touch measurement signal receiver is divided into a predetermined number and divided into receiver module A, B, and C.
  • the receiver module bundled with A, B, and C is further configured by one receiver module group N and N + 1. Also grouped by a predetermined number is composed of the transmitter group unit R N and R N +1 as described above.
  • the source driver transmits the source of the same index of each source group group R N and R N + 1 specified by the driving clock, that is, R N ( In n) and R N + 1 (n), a touch measurement signal including an acute angle touch measurement signal R2, a right angle touch measurement signal R1, and an obtuse angle touch measurement signal R3 is radiated simultaneously.
  • the touch measurement signal transmitted radially from the touch measurement signal transmitter of one transmitter group unit is received in the touch measurement signal receiver constituting the receiver modules A, B, and C, and the controller is radiated from one transmitter.
  • the coordinates or the diameter of the touch are calculated using the touch measurement signal received by the receiver located at a predetermined predetermined angle, that is, obtuse, right angle, and acute angle, among the touch measurement signals.
  • the transmitter R N the foot of the (n) touch measurement signal sent out from the bride R N (n) in the position of the touch measurement signal and a right angle that is received from the touch measurement signal receiving section of the A module in the position of the acute angle to the
  • the controller calculates the coordinates or the diameter of the touch with the touch measurement signal using only the touch measurement signal received by the touch measurement signal receiver of the B module and the touch measurement signal received by the touch measurement signal receiver of the C module at an obtuse position.
  • the touch measurement signal received by each receiver by the above-described method measures the touch position according to Equations 1 to 20 as described in the first embodiment.
  • a touch measurement signal is simultaneously transmitted in a touch measurement signal transmitter having the same index for each transmitter group group (R N , R N + 1 ) and the touch measurement signal receiver is also a receiver. Since at least one touch measurement signal is received for each module (A, B, C), not only can the touch position be measured more quickly than the first embodiment, but also the touch position can be measured more accurately, so that the touch position changes quickly. This can be measured quickly and accurately.
  • 13 is a view for explaining the principle that the receiver module is interlocked with each other in the adjacent transport module group of the second embodiment of the present invention.
  • an acute angle touch measurement signal of the touch measurement signals transmitted by the touch measurement signal transmitters of the adjacent transmitter group units 1330 and 1340 is adjacent to the receiver module group unit 1310. Since it may be received by the touch measurement signal receivers in the receiver modules 1311 to 1313 and 1321 to 1323 of 1320, it is irrelevant to which transmitter group units 1330 and 1340 the touch measurement signals are transmitted.
  • the receiver module of some of the receiver module group units 1310 and 1320 may be configured to receive at least a touch measurement signal.
  • one receiver module group unit includes N receiver modules. Can be.
  • two receiver module group units are illustrated, two or more receiver module group units may be configured according to the configuration.

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  • Theoretical Computer Science (AREA)
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Abstract

La présente invention concerne un dispositif de reconnaissance tactile multipoint conçu pour déterminer une illusion à partir d'une position réellement touchée et une position imaginaire selon un procédé de mesure d'un angle d'inclinaison; pour réduire le temps nécessaire à la mesure d'une position tactile; et pour mesurer plus précisément la position.
PCT/KR2012/005172 2011-07-01 2012-06-29 Dispositif de reconnaissance tactile multipoint WO2013005949A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280032015.5A CN103649877B (zh) 2011-07-01 2012-06-29 多点触摸识别装置
US14/130,454 US9292132B2 (en) 2011-07-01 2012-06-29 Multitouch recognizing device
JP2014518810A JP5757004B2 (ja) 2011-07-01 2012-06-29 マルチタッチ認識装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20110065415 2011-07-01
KR10-2011-0065415 2011-07-01
KR10-2011-0088772 2011-09-02
KR1020110088772A KR101260341B1 (ko) 2011-07-01 2011-09-02 멀티 터치 인식 장치

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WO2013005949A2 true WO2013005949A2 (fr) 2013-01-10
WO2013005949A3 WO2013005949A3 (fr) 2013-03-14

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Citations (4)

* Cited by examiner, † Cited by third party
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