TWI292884B - - Google Patents

Description

Ministry of Economic Affairs, Intellectual Property Bureau, employee consumption cooperative, printing

1292884

V. EMBODIMENT OF THE INVENTION (Technical Field) The present invention relates to a device for touch sensing. The image display usually includes a type of touch sensitive screen. After the emergence of a next generation portable multimedia device such as a palmtop computer, this becomes More commonly, the most recently established technique for detecting waves using surface acoustic waves (SAW) is to generate high-frequency waves on the surface of the glass screen and use the attenuation of the finger touch to detect the touch position. Time"" where the interference time of the arriving or more sensors is used to detect the position. When the medium is actuated in a non-dispersive manner, ie the wave speed does not change significantly over the frequency range of interest, this A method is possible. ^ Disclosure According to the present invention, there is provided a method of determining information relating to a touch on a touch sensing device, comprising the steps of: providing a component that maintains a bending wave, touching the location at a separate location The component produces a change in bending wave vibration in the component, providing at least one measuring device attached to the component to measure the component The test curve wave vibration 中 determines the measured bending wave signal, and processes the measured bending wave signal to calculate touch related information. The touch can be in the form of a stylus or a finger touch. The stylus can be a hand The shape of the grip type pen. The calculated information can be the position of the touch or other information, such as the pressure or size of the touch. The information about the touch can be counted in the central processor. _ This paper scale applies to the Chinese national standard (CNS) )A4 size (21〇x 297 mm) (Please read the notes on the back and fill out this page)

1292884 Five Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed A7 B7, invention description (2) calculation. The bending wave propagation can be measured by at least one sensing installed on the edge of the ##,*Cry (1) &quot; edge or separated from the edge of the component. Salty 4 w can also be an inductive converter, which converts the test wave vibration into a detector. w volts wind than the input signal. There may be more than one sense. Bending wave vibration means, for example, migration, and u π 斶楗 <excitation, which displaces some planes into the part. There are many curved materials temporarily closed # &lt;1 'some with a complete square root dispersion such as, a horse,,, and a mixture of male bending. Dispersion relationship The rain describes the plane velocity of the wave against the turbidity of gold, and the correlation between the head and the head. The material properties of the part and the excitation frequency determine the relative magnitude of the vibration. The distortion wave is dispersive, and g[J _ Α , 2, force ρ bow curve wave (speed is related to frequency. Because of the interference of its own number gradually spread over time, this property makes any "passed time 7" method not It is very appropriate. Therefore, the method also includes the correction of the source from the non-dispersive wave to convert the measured f-curve signal into a propagating signal, and the technical method for radar and sonar is available. To detect the position of the trigger. A significant advantage of using bending wave propagation is that the bending wave is an integral wave that contains the entire part of the movement, not just the surface. In comparison, most alternative touch sensing techniques rely on the surface. The effect is therefore susceptible to surface smashing. Therefore, 'the touch sensing device using f-curved wave should be stronger and less sensitive to scratches on the surface. etc. Using 4 fathers is the first to handle bending wave signals. The referenced correction is preferably based on the dispersion relationship of the material of the component that maintains the bending wave. This dispersion relationship can be the actual parameter known to the bending wave equation and the component material. The (phonetic Please read the back of the 2 items and then Complete this page)

-5- 1292884 A7 --------— B7___ V. Description of invention (3) Mode. Alternatively, the dispersion relationship can be measured with a laser vibrometer to produce an image of the type of vibration in the component at a number of known frequencies to impart a dispersion relationship in the frequency range of interest.进行 Sustainably sample the movement in the part for the measurement of bending wave propagation. The measured bending wave signal is compared to a reference signal (e.g., a signal that has been determined prior to touch) to confirm when a touch is possible. The size of the signal or other characteristics can be compared. Once touched, the measured bending wave ’ can be recorded and processed. The piece can be in the form of a flat plate or a panel. The component may be transparent or selectively non-transparent, such as of the type printed. This part can have a uniform thickness. Alternatively, the component can have a more complex shape, such as a curved surface and/or a variable thickness. If the bending wave may travel from the touch location to one of the sensors (whether the more complex path), provide a suitable rule such as a neural network to interpret the touch position of the bending wave signal received by the sensor, The method can be applied to components of complex shapes. It may be necessary to have several sensors. Childhood law can involve pure passive induction. In other words, the change in the bending wave vibration in the component caused by the touch can be an excitation of the bending wave vibration in the component: Printed by the Intellectual Property Intelligence Bureau employee consumption cooperative. In other words, there is no other bending wave vibration source for the passive sensor. From the time when each sensor pulse arrives and compares the time to determine the sense: then the relative distance from the pulse source and the relative distance are crossed to get the touch position, the position of the touch can be calculated. The most impact or frictional movement of the touch produces bending wave vibrations and measured bending wave signals. There can be at least three sensors. , Ergu-6 - 1292884 Ministry of Economic Affairs, Intellectual Property Bureau, Staff Consumer Cooperative, Printed A7 V. Inventions (4) Increasing the number of sensors used to detect touch or touch locations provides additional information and thus provides more Accurate detection. Alternatively or additionally, the bending wave signal received by each sensor can be analyzed over a long period of time, so that the direct signal (ie, the signal at which the pulse first arrives at the converter) is measured and also measured. From the side of the part of the 竣 竣 6 private, | 〒瑷,, 彖 foot reflection. This method approximates the addition of mirrors to each of the existing sensors. In this way, the extra information obtained can be used to provide a better accuracy or to reduce the number of sensors. In the position of the touched position, the measured bending wave signal can be further processed to determine other information related to the touch. The movement of the stylus on the part will produce a continuous signal that is affected by the position, pressure and speed of the stylus on the part. Continuous time data that can be derived from this continuous signal can be used to derive other useful information for various applications. An application can be identified by the S word, which is a subset of the more general work of pattern recognition. Classes such as these are used to draw graphics from complex data, and the advantages are mainly derived from additional independent information that appears in continuous time data. Thus, this method can also include the steps of establishing a neural network for processing continuous time data. This type of neural network can be trained in a group-example, such as a set generated by a group signature of a particular object or from a typical variation knowledge caused by a human writing process. The basic nature of a neural network is that the more independent information is available, the higher the accuracy of the results drawn. Because the system is related to the speed and pressure of the stylus on the surface of the component, the information available in the continuous time i1 m ..., T and Bei Cun is completely independent of the position information. Therefore additional information will increase the likelihood of accurate signature identification. The method may still include a second type of time response to the signature---------------------^----------- --------------------- (Please read the note on the back? Please fill out this page again) -7-

1292884 A7 B7 Ministry of Economic Affairs Intellectual Property Bureau Employees Consumption Cooperatives Printed V. Inventions (5:,,. 罔路I. Use more examples of knowledge generated by users to train: Force and speed expected selectivity Ground, continuous time data gossip. &gt; M -0 m ^ ^ ^ / Village for identification of handcuffs, double-click or touch M intensity detection 'eg how hard to touch" The image of the pulse shape in the time data can be detected by the time of succession. It is possible to use the two times and the strong rate of the second time. 〃 t The traditional technology is slow. In comparison with the position, the detection of the touch of the 箠, main & μ ^ 聿 扣 寺 temple is conventionally performed at a predetermined sampling rate, and the information about the touch position is established from the set of points. There is no continuous time information, so it is impossible to carry out many of the above applications' or only at lower satisfaction. Because the characteristics of the various types of stylus are different, the measured bending wave signal The measurement of the frequency content can be used to determine the type of touch. For example, a hard-tip pen will generate a higher frequency than a softer finger. Therefore, a touch-sensing device using a pen-input device can be constructed, and the operator's hand does not trigger the touch-sensing device. The difference in frequency produced by the stylus means the difference in the absolute spatial resolution that can be achieved; the higher the frequency is converted into the larger the resolution. In short, the difference in resolution is usually consistent with the requirements of the touch in the discussion. For example, with a finger The spatial resolution required for the input is usually lower than the spatial resolution expected by the sharp end pen. The frequency produced by the touch is quite low, which is generally the frequency of the audio rather than the ultrasonic. Therefore, the component preferably maintains the audio range. Bending wave vibration. Therefore, a component similar to the sound radiator used as a speaker can also be used as a touch I ϋ II 1 n I, I ϋ ϋ ϋ ϋ ϋ ϋ II ϋ ϋ 1^ ϋ ϋ _1 ϋ ϋ ϋ ϋ ί H ·ϋ I ^1 ϋ ^1 (Please read the note on the back and fill out this page) -8 1292884 A7 -----------B7 ___ V. Invention description (6) Touch induction Device. Touch sensor can still contain one An emissive transducer mounted on the component to generate bending wave vibrations in the component to detect information about the touch. Thus the component can be a sound radiator and the bending wave vibrations in the component can be used to produce an output of the sound. Although there are other types of noise that can affect passive sensing, such vibrations can be used as noise. When there is external noise, the method can also include techniques for isolating the signals generated by the noise from the touch, for example: 1 Predictive filtering that predicts the response of noise in a short period of time. The difference from the prediction 较 is more likely to be caused by the touch than by the transmitter. 2) Pattern the noise using the continuous recording of the resulting slogan and the transfer function from the transmitter to the sensor. This allows for more accurate noise prediction than predictive filtering. 3) Multiple sensors are used to determine the position of the transmit transducer in the same manner as used to find the location of the touch (e.g., crossover method). This information helps to separate the bending waves generated by the transmitter from the bending waves generated by the touch. Alternatively, noise can be used for active detection of touches in the component. Therefore, this method can also include generating bending waves in the component to cause active sensing, in other words, irrespective of the wave generated by the touch and related to the wave response that the mechanical limitation caused by the touch has been present in the component. The bending wave can be generated by an excitation nickname from a converter mounted on the component. The off-converter can have dual functionality, ie as a transmit transducer and a sensor. Alternatively, a launch can be mounted on the component Converter and at least one sensor -9 - This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 DON) (Please read the note on the back and fill out this page) * Ministry of Economic Affairs Intellectual Property Office Employees' Consumption Cooperatives Printed 11111111 I — — — — — — — — — — I--------- 1292884 Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperatives Printed A7 B7 V. Inventions (7) Touch The effect can be reflective, absorptive, or a reflection, the launch transducer produces a bending wave, etc., which is detected by the same converter or by a separate sensor. The spurious relationship information processing time or the nickname of the frequency response. The distance from the transmitting transducer or source to the 5 travels of the material can be generated to make it possible to distinguish two substantially separated touch positions via a single touch measurement. More information is needed to more accurately determine the touch location. The sensor can sense the reflection for this purpose, and the excitation signal can be sent from different sources used by the transmitter's full-sound sensor. Each sensor makes an independent measurement of the touch position, and the converter can be combined to produce a gradually accurate touch position. &lt; - The selective accuracy of the position accuracy can be measured in a long time. The back-curved wave vibration, thus increasing the form of the information frequency response for each measurement, may correspond to a higher frequency resolution B. The nuclear-expanded signal may also contain information about direct and indirect reflections from the touch. Indirect reflection is a signal that is reflected from the touch- or more boundary and reaches the salt detector. This method can be regarded as equivalent to the mirror position of the initial sensor. Detector, and can only use a combined source/induction converter to determine the exact touch position. A self-measurement method can be incorporated into the touch sensing device to measure the material dispersion relationship in the component. When there is no touch, the boundary reflection Still appearing, this pair of regular shapes is indicative of a strong reflection corresponding to the distance to each boundary. For a particular embodiment, the transmit transducer, sensor and boundary locations are known to give a set of known reference points. Then optimize the representation material -10 · 1 x 297 mm)

_ I ml II (Please read the notes on the back and fill out this page) Altar I—-------^ — φ------------------- --- 1292884

The ground's excitation signal can be inaudible, that is, the frequency is increased to more than 2 ο Hz ultrasonic waves. This has the advantage that large signal amplitudes can be used and high frequencies are converted to high spatial resolution. In short, the component must be able to maintain this super-wave k number. A variety of materials are suitable for the three noon, for example, glass, crystalline polystyrene. The excitation signal can be selected from any of the following signals: 1. Pulse-mode excitation _Note that if it has sufficient amplitude, it will suffer from poor noise rejection and audibility. 2. Band-limited noise - This signal has a lower audible loss than most of any known frequency band and has the advantage of tuning it to the most appropriate frequency band. In addition, it can be ultrasonic. 3 · % sine wave - has excellent signal-to-noise, but is completely audible in the sound band. The improvement is to place the frequency outside the sound band or use multiple closely spaced sinusoids with random relative phases, thus making the signal sound more like noise. This is an example of a signal that sounds like a noise, but with an improved correlation of the signal to the noise level. Another example of such a trace is the MLS (Maximum Length Sequence) signal. 4. Beep Signal - This is the signal that is widely used for the frequency response of a wide frequency range system. In short, this can only be achieved at the inaudible ultrasonic frequencies. ^ 5·Sound Signal - This can be fed into the converter when the part is used as a sound radiator for the speaker. In this case, there is no problem with an audible signal that has an audible effect, because it is the desired sound output. When the sensor and the transmitter are placed close together or for the same -12- (please read the phonetic on the back? Please fill out this page) m Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed t-- -------Aw------------------------ 1292884 A7 B7 Printed by the Department of Intellectual Property of the Ministry of Intellectual Property, Consumers' Cooperatives At 10, the background signal generated by the transmit converter is usually larger than the signal connected to the touch. This can introduce problems that can be mitigated in many ways. For example, the pulse-type excitation signal can limit the measurement in the sensor to As for the measurement starting after the outward wave generated by the transmitting amplifier, it will be more sensitive than forward. In short, because the pulse wave excitation signal has poor hysteresis property, the extended time excitation signal is more common than the pulse excitation signal. For extended time excitation signals, there are mechanical or other techniques that can be used to improve the relative size of the touch two, for example: 1) Place the sensor at about 1/4 wavelength from the transmit transducer, thus crying at the salt test The size of the detected outward wave is the smallest. If the touch signal is limited = when the narrow frequency range, this method can be used. 2: Place the transmit converter and sensor at a drive point, and design the sensor and sensor into a coupling of orthogonal actual characteristics. For example, a bender and an inertially coupled converter can be placed at the same point. The outward wave generated by either: the converter will not be detected by another converter. In short, it will be the secondary wave from the touch or the boundary to maximize its relative size. 2) Focus on the electrical field. The frequency response can be achieved by sweeping the sine wave and the demodulation stage (measurement. The external wave from the transmit converter is generated - the frequency is plasticized:: back: 値' on this 重叠 overlaps the smaller reflection caused by the touch... After the touch (for example, by the click demodulation circuit), the output can be smoothly changed based on the small chopping, so that when the output passes through the high-pass filter, the large basis can clearly show the appropriate fine structure. 4) Digitize the measured signal with sufficient accuracy, so it will be on top of the large foundation (very sensitive to fine structure. Then it can be filtered in the digital field - 13 - This paper scale applies to China National Fresh (CNS) I4 Specifications (10) χ 297 public love · (Please read the notes on the back and fill out this page)

1292884 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed A7 _____B7__________ V. Invention description (11) This fine structure is obvious. Depending on the use of the converter, it can be a two, three or four terminal device. The two-terminal device can be used as a sensor or a transmitter, respectively. Alternatively, it can be used as a dual function converter, and the impedance of the device determines the function of sensing. The three- and four-terminal devices use individual converters as sensors and transmit converters. For a three-terminal device, the sensor and the transmit transducer share a common electrode, while in the four-terminal device the sensor is electrically isolated from the transmit converter. Each of the transmit transducers or sensors can be a bend converter that is directly adhered to the component, such as a piezoelectric transducer. Bending converters are generally directional and are advantageous in certain applications. Their physical shape determines the achievable directionality&apos; so it can be tuned accordingly. Other advantages include high conversion efficiency, low cost, and considerable strength. Alternatively, each transmit transducer or sensor can be an inertial converter that is coupled to the component at a single point. The inertial converter can be either electric or piezoelectric. If at the frequency noted, the touch point is small compared to the bending wavelength in the component, the inertial converter is usually multi-directional. For a particular topology of the application, the transducers and/or sensors can be placed at relatively equal intervals around the edge of the component or the surface of the component. It is possible to use a sound converter that has been placed in position as a sensing and/or transmitting transducer. This entity can be added to the touch screen with minimal additional hardware. In summary, if this method is not possible, a small pressure element can prove the most appropriate converter, which is therefore particularly suitable for the ultrasonic frequency that can be used for active sensing. -14-

Private paper ruler money θ 0 fresh (CNS) A4^i721Qx 297; JJ 0 set --------- line ·----------- (please read the phonetic on the back first? Please fill in this page again) 1292884 A7 ------B7_ V. Invention Description (12) (Please read the note on the back and then fill out this page) According to the second feature of the present invention, the touch sensing device is provided A sensor for maintaining bending wave vibration and a sensor mounted on the component for measuring bending wave vibration in the component and transmitting the signal to a processor that processes the generated from the touch The information about the touch on the surface of the component due to changes in the bending wave vibration in the component. The touch sensing device can be a passive sensor in which the bending wave vibration is only excited by the touch and not by any other source. Alternatively, the touch sensing device can be an active sensor. Therefore, the touch sensing device may further include a transmitting transducer for exciting the bending wave vibration in the SHA member to detect the touch related information. The response of the wave generated by the transmit transducer is compared to the mechanical limit caused by the touch to calculate the information about the touch. The component maintains bending waves in the audio range. Therefore, the touch sensing device can be a speaker, so that the sound radiator of the speaker is used as a sliding member of the touch sensing device, and is installed on the sound radiator to excite the bending wave vibration in the sound radiator to generate an sound output. It is a transmit transducer for a touch sensing device. Printed by the Intellectual Property Office of the Ministry of Economic Affairs, the consumer consortium. The touch sensing device can include a display device. Used to display information about touches calculated by the processor. Thus, in accordance with a third embodiment of the present invention, a display screen for a touch sensing device is provided. The display screen can be a liquid crystal display screen containing liquid crystals that can be used to excite or sense bending waves. The screen can maintain bending waves over a wide frequency range. Direct contact with the screen triggers the touch sensing device. Therefore, this application provides the possibility that the standard LCD screen is sensitive to touch without other mechanical components. 0 -15- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1292884 Ministry of Economics Intellectual Property Bureau employee consumption cooperative printing A7 B7 V. Invention Description (13 Because the method can be adapted to complex shapes, the line assistant can include the touch device according to the present invention. 2. According to the present invention, the touch is sensitive to the continuous type. The slot plate replaces the auxiliary keyboard installed on the mobile phone. This method can reduce the cost and provide a range of expansion in the application of the sound. In the portable computer, according to the continuous slot of the device that is sensitive to touch. The board can be used as an auxiliary touch panel for the mouse controller. The slot plate can be implemented by a mouse controller or other alternative (such as a keyboard). S. Compared with other technologies, the advantages of the bending wave touch sensing device and method are: 1) Techniques for more use that are sensitive to both the position and pressure of the touch; 2) due to the need for a transparent contact array or a magnetic tip plug complex sensor, etc. Cheaper touch sensing device form; 3) The material parameters of the control unit are easy to determine the size of the device and the sensitivity of the space; and 4) Using dual-function components, good quality can be achieved under tight space and weight constraints The sound is loud. BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated by way of example in the drawings, in which: FIG. 1 is an illustration of a touch-sensing speaker in accordance with the present invention; FIGS. 2a and 2b are illustrations of a bending wave speaker before and after a touch; 3 is a first speaker incorporating passive touch sensing according to a second embodiment of the present invention; -16- The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the phonetic note on the back first) Fill in this page again)

1292884 A7 -^--__B7____ V. INSTRUCTION DESCRIPTION (14) ^ 4 is a second speaker incorporating passive touch sensing according to a second embodiment of the present invention; W 5 is a passive induction processing rule according to the first embodiment of the present invention FIG. 7 is a first speaker incorporating active touch sensing according to a first embodiment of the present invention; FIG. 7 is a first speaker incorporating active touch sensing according to a first embodiment of the present invention; FIG. FIG. 9 is a block diagram of an active induction processing rule according to a first embodiment of the present invention; and FIGS. 10a to 10D are graphical illustrations of a dispersion correction method. BEST MODE FOR CARRYING OUT THE INVENTION Figure 1 shows a touch sensing device (10) including a transparent touch sensitive panel (12) mounted in front of the display device (14). The display device (14) can be in the form of a television, an electric moon screen or other visual display device. A pen-shaped stylus (18) is used to write text (2 〇) or other content on the touch sensation panel (12). The transparent touch sensor panel (12) can also be an acoustic device that maintains bending wave vibration. Three converters (16) are mounted on the board (12). At least two of the transducers (16) are inductive transducers or sensors and are therefore sensitive to bending wave vibrations in the panel and monitor bending wave vibrations. The third converter (16) can also be an inductive converter, and thus the system corresponds to the passive touch sensing device of FIG. 3 or 4. Alternatively, the third converter can be used to excite the bending wave vibrations in the plate. -17 - The paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the back note first? Matters fill out this page) Printed by the Intellectual Property Office of the Ministry of Economic Affairs

IJ —— — — — — II ^ — — — — — — — — I — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — A7 B7 V. The launch converter of the invention (15), and thus the system corresponds to the active sensor of FIG. In Figure 6 of the specific embodiment of Figure 7, the active sensor can be used as a combined speaker and touch sensing device. Figures 2a and 2b illustrate the general principle of a touch sensing device (22) that uses bending wave vibration as an inductive component. The touch sensing device (22) includes a panel (24) for maintaining bending wave vibration and a sensing converter (26) mounted on the panel (24) for sensing the sensing converter (26) Bending wave vibration of the panel (24) of the mounting point. Figure 2a shows the vibration pattern of the bending wave vibration (28), in this case a normal uninterrupted vibration pattern, such as a steady state pattern at a known frequency or a transient pulse pattern. In Figure 2b, the panel (24) is touched at the touch point (30) and the vibration pattern is changed. In order to interfere with the bending wave path already in the slab (24) or to generate a new bending wave from the touch point (30), the touch can change the vibration pattern (28). The sense transducer (26) senses a change in the vibration pattern (28). Information about the touch can be determined from the number of sense transducers, such as by a first processing unit. The information can be transmitted to a second processing unit that outputs the information on the display screen. The information can include the location of the touch pulse and the details of the pressure profile, for example: 1) Touch the X, y coordinates. 2) The characteristic size of the touch, for example, 1 mm corresponds to a pen or a stylus, and i cm corresponds to a finger. 3) The pressure profile of the touch is a function of time. Figures 3 and 4 show a more detailed illustration of two touch sensing devices (32, 33). The touch sensing device (32, 33) includes a panel (24) that maintains bending wave vibration to -18- the paper size applies to the Chinese National Standard (CNS) A4 specification (210 297 mm) l·----- ----------------^---------^ IAWI (please read the notes on the back and fill out this page) 1292884 Ministry of Economic Affairs Intellectual Property Bureau Staff Consumption Cooperative Printed A7 B7 5. Invention Description (16) and two sensing transducers (26) for sensing bending wave vibration at their individual mounting points. When pressure is applied to the touch point (30), a vibration pattern (28) is generated. Since the device does not include a transmit converter, the device can be considered as a passive touch sensor. The bending wave panel in the panel is thus only vibrated by the touch. In a passive sensor, the pulse in the body of the panel (24) begins a bending wave that tends toward the edge of the panel (24). The bending wave system is three sense transducers (26) mounted equidistantly around the edge as in Fig. 3 or three senses mounted on the surface of the panel (24) as shown in Fig. 4 but separated from the edge of the panel (24). Detected by the converter. The measured bending wave signal is processed to determine the spatial origin and force profile of the applied pulse. Figure 5 shows the general rule of processing of the bending wave information sensed by each of the sense transducers (26) of Figure 3 or Figure 4. The general procedure includes the following steps: i) taking signals that are adapted to the respective sense converters to minimize unwanted external signals. Linear prediction of the signal can be used to predict and remove background noise. Π) Calculate the frequency response at each converter. Iii) (if required) If information is available from active sensing, add information on the pulse position. Iv) Add material parameter information. v) Use the information obtained from steps (ii), (iii) and (iv); correct the dispersion of the panels to obtain a non-dispersive response. Knife Month vi) Calculate the counter-attack t of the pulse-shaped touch time response at the touch point. Vii) Output details of pulse shape information and location qualification as needed. The advantages of passive sensing include: 1) This method covers more than one frequency and contains the description of the pulse shape of the two -19&quot; paper scale _ specification (2) 〇 X 297 public love (please read the phonetic on the back? page)

Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printed 1292884

, invention description (17 sufficient frequency connotation, and 2) because the method is passive, the required power is the lowest. A lack of FJ for passive sensing; Β, 俨嗨, ... 疋 pulse heart frequency confinement limits the measured frequency! 1 connotation. Therefore, it will be converted into a high frequency of a relatively long bending wavelength, and the signal will be burned to a limit. Therefore, the spatial resolution of the signal is limited. And 7 are alternative combined touch sensing and sound devices (7). Each of these devices includes a launcher for bending wave vibration (9) and a bending wave for bending wave vibration in a panel (24) (9). In the figure, the device (35) further includes two additional sensing transducers (26) for sensing the bending wave vibration at its individual mounting points, and the device (9) in Fig. 7 includes - another Sensing converter (26). When the pressure is applied to the touch point (3 〇), the vibration pattern (28) is interrupted. Since these devices include a _transmission converter (31), the device such as a child can be recognized as an active touch sensing device. In Figure 6, the sense and transmit transducers (26, 31) are placed equidistantly about the edge of the circular panel (24), while in Figure 7, the sense and transmit transducers (26, 31) are Placed on the edge of the panel (24) and mounted to its surface. The transducers in Figure 7 are placed equidistantly on the surface of the panel. Figures 8 and 9 illustrate possible implementations of an active touch sensing device. In Figure 8, the central processor (34) outputs a digital output signal (36) that is converted to an analog output signal (4〇) by a digital-to-analog converter (DAC) (38). The analog output signal (40) is fed to an amplifier (42) which feeds the amplified output signal (44) to the transmit converter (31). The transmit transducer (31) emits a bending wave excitation of the bending wave (46) in the excitation panel (48). Two sensing transducers (2 6 ) are sensed in the sensing step (50) in the panel (4 $) -20- / the paper scale applies to the Chinese National Standard (CNS) A4 specification (210 X 297 PCT) (Please read the notes on the back and fill out this page)

1292884 A7 B7 18 V. Inventive Description (Bending Wave. The sense transducer (26) converts the bending wave vibration into an analog input signal (52), which is fed into an analog-to-digital converter (ADC) (54) The last digit input signal (56) is sent to the central processing unit (34), which determines the information about the position and contour of the touch pulse (5 8). In Figure 9, the displayed one is the decision touch. The method of point location is as follows and can be performed by the central processor shown in Figure 6: a) Measure the frequency response at each of the sense transducers. b) Correct the dispersion of the panels. c) Calculate the fft to obtain the time response of the non-dispersive media. d) Compare the time response with the reference response without the external touch panel. e) Identify reflections from touch points. f) Perform echo positions on the relevant reflections to identify their sources. g) Output details of the touch location. The advantages of active sensing include: 1) Because this method measures the response to external signals, high frequency information is not limited and may have high spatial resolution, and 2) the sensitivity to external noise can be greatly reduced. This can be done by sensing the response in a frequency band where the external noise is small (e.g., above the sound spectrum). An alternative is to provide a special correlation to the signal so that it can be detected even when it is very small compared to background noise. Disadvantages of active sensing include: 1) This method may be less sensitive to pulse profiles than passive. In short, more complex processing can improve this situation. For example, the greater the pressure of a finger or pen, the greater the degree of other damping that may be introduced. This can be made up of quite simple additional resources - 21 - (please read the phonetic on the back? Please fill out this page again) Printed by the Ministry of Intellectual Property's Staff Consumer Cooperative I ^^1 I ^^1 in n ϋ I ϋ 1 i -ϋ m ·1 ϋ 1 ϋ ϋ n ϋ ϋ ϋ 1 ϋ ϋ n I n ί .^1 I · 1292884 A7 V. Description of the invention (20 position is problematic. The periodic variation of the frequency response is the characteristic of reflection, And is generally considered to be a sinusoidal over-consideration. In the periplasm, the periodic variation in the frequency response is derived from the number of wavelengths between the source and the reflector. The number of wavelengths due to the increase in frequency and in this space Increasing, the reflected wave interference with the outward wave is between the constructive and the destructive. The Fourier transform of the dispersive impulse response of Fig. 10a is calculated to produce the π (frequency response) of the frequency response. The frequency response is aperiodic. The periodic variation of wavelength has a slower frequency change due to the increase of frequency. This is the result of the dispersion of the Pingwan root, where the wavelength system is inversely proportional to the square root of the frequency. Therefore, the effect of the panel on the frequency response is According to the panel dispersion The response is expanded into a function of frequency. Therefore, the application of inverse expansion in the frequency domain can be used to make the panel disperse positively, thus restoring the periodicity in the non-dispersive case. Deviation of the frequency axis with the anti-panel dispersion, Figure 1 The frequency response of 卟 into a non-dispersive case (Fig. l〇c), where the excitation frequency is inversely proportional to the wavelength. This simple relationship transforms the periodic variation of decreasing wavelength into a frequency as shown in Fig. 1〇c. Periodically changing. Using the inverse fast Fourier transform (fft) on the trajectory of Fig. 1c, the impulse response shown in Fig. 10d is generated, which is corrected for dispersion and has a clear reflection. As shown in Fig. 10d, Since the wave traveling in the non-dispersive medium has a fixed travel rate independent of its frequency, any particular pulse waveform will be saved in time. Therefore, the effect of the echo position is quite straightforward. At time t = 0, outward The wave (66) is very noticeable and has a clear reflection (68) at 4 milliseconds. The reflection (68) has a quarter of the size of the outward wave (66) -23 - the paper scale applies Chinese national standard ( CNS) A4 specification (21〇X 297 public) (Please read the note on the back first? Then fill out this page) Yu·Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing — — — — — — — — I — — — — — — — — — — — — — — — — 1292884 A7 B7 Ministry of Economic Affairs Intellectual Property Office Staff Consumer Cooperatives Printing V. Inventions (21) Size Industrial Applicability thus provided by the present invention A new and convenient touch sensing device, and a touch sensing device combined with a curved wave panel sound device. Reference item 10 Touch sensing device 12 Transparent touch sensor board 14 Display device 16 Converter 18 Pen 20 Character 22 Touch sensor 24 Panel 26 Sensing transducer 28 Vibration pattern 30 Touch point 31 Transmitter 32 First touch sensing Device 33 second touch sensing device 34 central processor 35 third touch sensing device 36 digital output signal 37 fourth touch sensing device 38 digital-to-analog converter 40 analog output signal 42 amplifier 44 amplification analog output signal 46 bending wave excitation - 24- ———— — — — — — — — — — 1 — — — — — — II 11111111 I — III — — — — — — — I----I------ (Please first Read the notes on the back and fill out this page. This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). 1292884 A7 B7, invention description ( 22 ) 48 Bending wave 50 Sensing step 52 Analog input signal 54 Analog-to-digital converter 56 digital input signal 58 information 60 outward wave 62 echo signal 64 outward wave 66 clear reflection I.------------ --------^---------^ IAW (please read the note on the back and fill out this page) Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing -25 - , the paper scale Applicable to China National Standard (CNS) A4 specification (210 X 297 mm)

Claims (1)

I29g&amp;&amp;4691() Patent Application Chinese Patent Application Replacement Taiyuan Q q VI. Application for Patent Park i.- A method for determining information in a passive connection, the method includes the following (4) The upper touch control unit provides a component capable of maintaining a bending wave; the touch component is touched at a discontinuous position, and/or is moved by the touch friction to generate a bending wave at the hollowing force; The vibration provides a change to at least one of the components of the component. The bending wave vibration is measured by the second and second measurements of the bending wave signal; the measured bending wave signal is processed to signal. T戽 is related to the touch of children. 2. The method of applying for the scope of the patent item is further applied to apply a correction to measure the bending wave letter 2, a spread signal of the scattered wave source. A method of information from a non-three-in-one active-phase contact device, the method comprising the steps of: working on a component capable of maintaining a bending wave; The transmitting transducer is mounted on the component to generate bending wave vibration to detect the touch related to the touch, and the child touch system acts as a mechanical restriction on the part; Touching the component in a non-continuous position, by means of the transmitting transducer, the bending wave vibration generated in the child component is changed, providing - connecting to at least one measuring component of the component, using (four) Applying for a variation of the bending wave vibration in the component range 1292884 to determine a measured bending wave signal; and; processing 4 measuring the bending wave number to calculate information related to the touch, including applying - The measured f-wave signal is converted into a propagating signal from a non-dispersive wave source. 4. The method of claim 3, comprising providing a transmit converter having dual functions as the transmit converter and a sensor. 5. The method of claim 3, wherein the effect of the touch is a reflection effect such that a bending wave generated by the emission converter is reflected by the touch and is detected by the measuring component. For example, in the method of claim 3 or 4, the effect of the touch is that the absorption of the bending wave generated by the emission converter is absorbed by the touch and is measured by the measuring member. 7. The method of claim 5, wherein the indirect excitation from one or more boundary reflections is used to self-test the effect of the touch by the measuring member. 8. The method of claim 3 or 4 The bending wave vibration generated by the transmitting converter has no significant sound. 9. As claimed in the eighth aspect of the patent application, wherein the bending wave vibration generated by the transmitting transducer is within the range of ultrasonic waves. 10. The method of claim 8, wherein the bending wave vibration is background noise. 11. The method of claim 3, wherein the bending wave vibration generated by the transmitting converter forms an acoustic output in the member, as a -2 - the paper scale applies to the Chinese National Standard (CNS) Dong j~—-- 1292884 Sixth, apply for a patent transmitter Fan sound transmitter. The method further includes placing the emitter transducer with the relative phase measuring member placed at an interval of the component, such as the third or fourth aspect of the patent application. Wherein the transmit converter is a bend converter, and vice versa, as in the method of claim 3 or 4, an inertial converter, and the measuring member is also the same. H. The method of claim 2, wherein the correction applied is based on a distribution relationship of the component materials. 15. The method of claim 14, wherein the scatter relationship is modeled by using a bending wave equation in combination with known physical parameters of the component material. 16. The method of claim 14, wherein the scattering relationship is measured by using a laser vibrometer to form an image of a plurality of vibration modes of a given frequency in the component to obtain a desired Dispersion relationship within the frequency range. 17. The method of claim 14, wherein the scatter relationship is measured using a self-measurement mechanism incorporated into the contact sensing device. 18. The method of claim 1 or 3, wherein the or each measuring member is in the form of a sensor. 19. The method of claim 18, further comprising mounting the or each inductor on one side of the component. 20. The method of claim 18, further comprising mounting the sensor or each inductor on the component, the location of the component and one of the components. 3 - The paper size is applicable to the Chinese national standard (CNS) Α4 specifications (210 X 297 mm). 1292884 Patented light ^ garden A Qin B8 C8 D8 V between the sides. 21. The method of claim 1 or 3, wherein the method further comprises comparing the _ summer bending wave signal with a reference illuminating touch. a method for determining when a method related to the touch is related to the touch, and wherein the method information of the first or third aspect of the patent application includes the The location of the touch. 23. The method of claim 1 or 3 of the patent application includes information on the pressing force of the touch. 24. If the method of applying for patent range i or 3 information includes the area of the touch. 25. If the scope of the patent application is 第1员3, and the method of moving the touch of the part, it will produce a secret &&&amp;&amp; ώ ^ ^ ^ The continuous signal of the position, pressing force and speed of the piece, and you m * __ dragon and use a continuous time from the continuous signal of a child to derive additional useful information related to the touch. 26. The method of claiming the patent scope further includes an implementation-like neural network <step for processing the continuous time data. 27· If you apply for patent range i or 3, “Wan, the touch type is selected from the use of a pen touch or finger touch. ^糸Selected from 28·If you apply for the patent scope! Or 3, &lt; 10,000, further comprising measuring the frequency content of the measured bending wave signal, m, the door to determine the touch type. 29·If you apply for a part of the patent garden or the third. Providing transparency 30. As claimed in claim 1 or 3, I^ further includes providing components in the form of panels. -4- This paper scale applies to China National Standard (CNS) Α 4 specifications (210X297^^ begging · 1 丨 0 correction walking ^ CB Sixth, the application for patent Fan Park 1292884 further includes providing 31. Method of applying the patent range No. 1 or 3 A component of uniform thickness. Processing, by the processor, from a starting impact force by touch and/or a bending wave vibration generated in the component by touch friction movement, to perform touch-related on the surface of the workpiece News. 34. An active contact sensing device comprising: a component capable of maintaining bending wave vibration; a launching transducer for exciting bending wave vibrations in the component to detect information related to the touch; An inductor mounted on the component for measuring bending wave vibrations in the component and for transmitting a signal to a processor from which the mechanical limitation due to the touch is A change in bending wave vibration generated by the transmitting transducer is caused to process touch-related information on the surface of the component, and a correction is applied to convert the measured bending wave signal into a propagated signal from the non-dispersive wave source. 35. The touch sensing device of claim 34, wherein the touch sensing device is a speaker such that a sound emitter of the speaker acts as a component of the touch sensing device and an actuator is mounted The sound emitter is used to excite the bending wave vibration in the sound emitter to form the paper size applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm). ^The boat is called the Japanese correction/more C8 D8 6. Applying for a patent range - a sound output, thereby acting as a launch transducer for the contact sensing device. 36. The touch sensing device of claim 34, wherein the transmitter has dual functions as the transmit converter and the sensor. 37. The touch sensing device of claim 34, wherein the transmit transducer and the inductor are placed around the component at relatively equal intervals. 38. The contact sensing device of claim 33, wherein the sensor is mounted on one side of the component. 39. The touch sensing device of claim 33, wherein the sensor is mounted on the component at a location spaced from one of the sides of the component. 40. The contact sensing device of claim 33 or 34, further comprising a display TJT member. 41. The touch sensing device of claim 40, wherein the display member is a liquid crystal display screen comprising liquid crystal for exciting or inducing bending wave vibrations in the component. 42. The contact sensing device of claim 33, wherein the component is transparent. 43. The contact sensing device of claim 33, wherein the component is in the form of a panel. 44. The touch sensing device of claim 33, wherein the component has a uniform thickness. 45. The contact sensing device of claim 33, wherein the component has a complex shape. -6 - 1292884 Binding line This paper size applies to the Chinese National Standard (CNS) Α4 specification (210X297 mm) A BCD 1292884 VI. Scope of application for patents 46. A mobile phone containing a contact sensing device as claimed in claim 33. 47. A portable computer comprising a touch sensing device as claimed in claim 33. 48. A personal data assistant comprising a touch sensing device as claimed in claim 33. 49. A mobile telephone comprising a contact sensing device as claimed in claim 34. 50. A portable computer comprising a touch sensing device as claimed in claim 34. 51. A personal data assistant comprising a touch sensing device as claimed in claim 34. This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) 1292884 Patent application No. 089126910 (Figure 96) 0.5 62 10a Let the scattered impulse response: .- 〇' · · -Ψ------一;^六—·νρΓ*— 0 10 time (monetary) 15 20 Dispersive impulse response diagram Figure 10b 1000 2000 3000 4000 5000 馒 rate (Hz) Dispersive frequency response diagram V 1292884 2000 3000 frequency (Hz) 4000 5000 non-dispersive frequency response diagram Figure 10d -5 ο ο 10 time (milliseconds) 15 20