TWI581132B - Transmitter and transmitting method thereof - Google Patents

Description

Transmitter and its signaling method

The present invention relates to a transmitter, and more particularly to a transmitter that emits an electrical signal to indicate the degree of force thereof without measuring the degree of force, and a method of transmitting the same.

The touch panel or touch screen is a modern and important human-machine interface. In addition to detecting proximity or contact (collectively referred to as proximity), the touch panel is also used to detect a close pen or touch. The tip of the pen is used to facilitate the user to precisely control the trajectory of the tip touch.

The pen can use the pen tip to actively emit an electrical signal, which is referred to herein as an active stylus. When the tip of the pen is in contact with the control panel, the electrode on the touch panel is affected by the electrical signal and has an electromagnetic response, and the corresponding electromagnetic response of the electrical signal can be detected to detect that the pen is closely connected to the sensing. Electrode, and know the relative position of the pen tip and the touch panel.

The conventional active stylus includes a wired active stylus and a wireless active stylus. The wired active stylus can obtain power from the touch panel directly from the connection line connected to the touch panel, or can transmit signals to the touch panel by the connection line, for example, transmitting a signal indicating the pressure received by the pen tip. The biggest disadvantage of the wired active stylus is that the obstruction of the connecting line causes inconvenience in use. However, the wireless active stylus must solve the synchronization problem between the wired active stylus and the controller that detects the active stylus. This problem does not exist between the wired active stylus and the controller.

In addition, one difference of the active stylus relative to the passive stylus is that the active stylus can be added to the pressure sensing, and the pressure receiving device in the active stylus conveys the degree of force on the tip. The controller or host that detects the active stylus can obtain information on the force of the tip of the active stylus. However, how to provide the information of the pen tip force to the controller for detecting the active stylus is another problem that must be solved in the technical field.

Traditionally, it is necessary to add a circuit for measuring force information to the active stylus, such as an analog digital converter and related circuits, and then use a controller on the stylus to perform a digital signal indicating the degree of force. Further processing, for example, may be through wireless communication, but it will increase the cost and power consumption of the wireless communication. The controller or host that detects the active stylus must also have the capability of such wireless communication to increase system complexity. In addition, it may be that the digital information of the pen tip is converted into an analog signal size, but may be misjudged due to changes in temperature or humidity, the distance between the pen and the touch panel, and interference of noise.

Accordingly, there is a need for an active stylus capable of actively transmitting an electrical signal to a pressure accurately, which can emit an electrical signal to indicate the degree of force without measuring the degree of force.

One of the features of the present invention is to provide a transmitter comprising a pointed segment, wherein the transmitter is configured to generate a first signal according to a degree of force corresponding to the tip portion, and to transmit the first signal through the tip The segment emits an electrical signal including the first signal, an attribute of the electrical signal corresponding to the degree of force.

One of the features of the present invention is to provide a method for transmitting a sender, wherein the transmitter includes a pointed segment, the signaling method comprising: generating a first signal according to a degree of force corresponding to the pen tip segment And transmitting an electrical signal including the first signal through the tip segment, an attribute of the electrical signal corresponding to the degree of force.

One of the spirits of the present invention is to provide an active stylus capable of actively transmitting an electrical signal to a pressure accurately, which can emit an electrical signal to indicate the degree of force without measuring the degree of force.

100‧‧‧ touch system

110‧‧‧ sender

120‧‧‧Touch panel

121‧‧‧First electrode

122‧‧‧second electrode

130‧‧‧Touch processing device

140‧‧‧Host

210‧‧‧Signal source

211‧‧‧ first source

212‧‧‧second source

215‧‧‧Signal switch

221‧‧‧ first component

222‧‧‧ second component

230‧‧‧ pen tip

240‧‧‧Amplifier

241‧‧‧First amplifier

242‧‧‧second amplifier

321‧‧‧first capacitor

322‧‧‧second capacitor

441‧‧‧Eraser Capacitor

442‧‧‧ pen capacitor

523‧‧‧Ring capacitor

550‧‧‧Ring electrode

551‧‧‧Ring electrode wire

610~660‧‧‧Steps

714‧‧‧ single source

760‧‧‧Control unit

770‧‧‧transmitter wireless communication unit

771‧‧‧transmitter wired communication unit

780‧‧‧Host wireless communication unit

781‧‧‧Host wired communication unit

810~860‧‧‧Steps

1110‧‧‧First metal plate

1110A‧‧‧First Metal Plate A

1110B‧‧‧First metal plate B

1120‧‧‧Second metal plate

1120A‧‧‧Second metal plate A

1120B‧‧‧Second metal plate B

1130‧‧‧ Third metal plate

1130A‧‧‧ Third Metal Plate A

1130B‧‧‧ Third metal plate B

1140‧‧‧Uplifting elements or beveling devices

1150‧‧‧Support elements

1970‧‧‧ movable components

1971‧‧‧ front movable element

1972‧‧‧Back end movable element

1973‧‧‧Insulation film

1974‧‧‧Compressible conductor

1975‧‧‧Conductor base

1976‧‧‧Base wire

1977‧‧‧ movable component wire

1978‧‧‧Flexible components

1979‧‧‧Compressible insulation

1980‧‧‧shell

1990‧‧‧Printed circuit board

2110‧‧‧ Pressure sensor

2120‧‧‧Control unit

2210‧‧‧ Pressure Sensor

2220‧‧‧Control unit

2610~2650‧‧‧Steps

2900‧‧‧Detecting beacon signal system

2910‧‧‧ receiving electrode

2920‧‧‧Detection module

2921‧‧‧ analog front end

2922‧‧‧ Comparator

2930‧‧‧Demodulation Transducer

Sw1‧‧‧ switch

Sw2‧‧‧ switch

Sw3‧‧‧ switch

Sw4‧‧‧ switch

Sw5‧‧‧ switch

Sw6‧‧‧ switch

SWB‧‧ switch

SWE‧‧ switch

The first figure is a schematic diagram of a touch system 100 according to an embodiment of the invention.

Figure 2A is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 2B is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

The second C is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

The second D diagram and the second E diagram are two circuit analysis diagrams of the second A diagram embodiment.

The second F diagram is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

The third figure is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 4A is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 4B is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

The fifth figure is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

FIG. 6 is a schematic flow chart of a method for determining a sensor or a touch pen tip sensing value of a touch device according to an embodiment of the invention.

Figure 7A is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 7B is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 7C is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

Figure 7D is a schematic diagram of the interior of a transmitter 110 in accordance with an embodiment of the present invention.

FIG. 8 is a schematic flow chart of a method for determining a sensor tip value of a transmitter according to an embodiment of the invention.

FIG. 9A is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

Figure IX is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

The ninth C is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

The ninth D diagram is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

Figure IX is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

The ninth F diagram is a timing diagram of signal modulation of the transmitter 110 in accordance with an embodiment of the present invention.

Figure 11 is a schematic diagram of noise propagation in accordance with an embodiment of the present invention.

FIG. 11 is a schematic structural view of a first capacitor 221 according to another embodiment of the present invention.

Fig. 12 is a diagram showing the reduction of the embodiment shown in Fig. 11.

Fig. 13 is a modification of the embodiment shown in Fig. 12.

Fig. 14 is a modification of the embodiment shown in Fig. 13.

The fifteenth figure is a modification of the embodiment shown in Fig. 14.

Figure 16A is a schematic view of an embodiment of the invention.

Fig. 16B is a modification of the embodiment shown in Fig. 16A.

17A and 17B are schematic structural views of a first capacitor and a second capacitor according to the present invention.

Fig. 18 is a modification of the embodiment shown in Fig. 11.

Figure 19A is an exploded perspective view of the force sensing capacitance of the transmitter 110 and the center profile of its structure.

Figure 19B is a schematic cross-sectional view showing the combination of structures shown in Fig. 19A.

Figure 19C is another schematic cross-sectional view after the combination of structures shown in Fig. 19A.

FIG. 19D is an exploded perspective view showing the center of the force sensing capacitance of the transmitter 110 and its structure according to an embodiment of the present invention.

Figure 19E is an exploded perspective view showing the center of the force sensing capacitance of the transmitter 110 and its structure according to an embodiment of the present invention.

Fig. 20 is a schematic cross-sectional view showing the contact surface of the compressible conductor 1974 and the insulating film 1973 in Fig. 19A.

Figure 21 is a schematic view of a pressure sensor in accordance with an embodiment of the present invention.

A twenty-second figure is a schematic view of a pressure sensor according to an embodiment of the invention.

Twenty-third and A are diagrams showing the structure of a simple switch according to an embodiment of the present invention.

Twenty-fourth A and B are schematic views of the structure of a simple switch according to an embodiment of the present invention.

The twenty-fifth figure provides a schematic diagram of inferring the position of the nib of the present invention.

A twenty-sixth drawing is a schematic diagram of calculating a tilt angle according to an embodiment of the present invention.

The twenty-seventh embodiment is an embodiment showing a brush stroke in which the interface reacts to the aforementioned tilt angle and/or pressure.

The twenty-eighthth image is another embodiment of a brush stroke that reflects the aforementioned tilt and/or pressure at the display interface.

Figure 29 is a block diagram of a detection lighthouse signal system in accordance with an embodiment of the present invention.

The invention will be described in detail below with some embodiments. However, the scope of the present invention is not limited by the embodiments, except as to the disclosed embodiments, which are subject to the scope of the claims. In order to provide a clearer description and to enable those skilled in the art to understand the present invention, the various parts of the drawings are not drawn according to their relative sizes, and the ratio of certain dimensions or other related scales may be highlighted. It is exaggerated to come out, and the irrelevant details are not completely drawn, in order to simplify the illustration.

Please refer to the first figure, which is a schematic diagram of a touch system 100 according to an embodiment of the invention. The touch system 100 includes at least one transmitter 110, a touch panel 120, a touch processing device 130, and a host 140. In this embodiment, the active stylus capable of actively transmitting an electrical signal is taken as an example, and the actual implementation is not limited thereto. The touch system 100 can include a plurality of transmitters 110. The touch panel 120 is formed on a substrate, and the touch panel 120 can be a touch screen. The invention does not limit the form of the touch panel 120.

In one embodiment, the touch panel 120 includes a plurality of first electrodes 121 and a plurality of second electrodes 122, and a plurality of capacitive coupling sensing points are formed at the overlapping portions. The first electrode 121 and the second electrode 122 are respectively connected to the touch processing device 130. In the mutual capacitance detection mode, the first electrode 121 may be referred to as a first conductive strip or a driving electrode, and the second electrode 122 may be referred to as a second conductive strip or a sensing electrode. The touch processing device 130 can use the driving voltage (the voltage of the driving signal) to the first electrodes 121, and measure the signal changes of the second electrodes 122 to know that there is an external conductive object approaching or contacting (referred to as a proximity). The touch panel 120. A person skilled in the art can understand that the touch processing device 130 can detect the proximity event and the proximity object by means of mutual capacitance or self-capacitance, which will not be described in detail herein. In addition to the mutual capacitance or self-capacitance detection method, the touch processing device 130 can also detect the electrical signal emitted by the transmitter 110, thereby detecting the relative relationship between the transmitter 110 and the touch panel 120. position. In one embodiment, the signal changes of the first electrode 121 and the second electrode 122 are respectively measured to detect the signal of the transmitter 110, thereby detecting the relative position of the starter 110 and the touch panel 120. Since the signal of the transmitter 110 is different from the frequency of the mutual capacitance or the self-capacitance driving signal, and is not mutually resonant, the touch processing device 130 can separately distinguish the signal and the mutual capacitance emitted by the signal generator 110 or Self-capacitance signal. In another embodiment, the touch panel 120 can be a surface capacitive touch panel having one electrode at four corners or four sides, and the touch processing device 130 measures the signal changes of the four electrodes separately or simultaneously. The relative position of the starter 110 and the touch panel 120 is detected.

Also included in the first figure is a host 140, which may be a central processing unit, or a main processor within an embedded system, or other form of computer. In an embodiment, the touch system 100 can be a tablet computer, and the host computer 140 can be a central processing unit that executes a tablet operating program. For example, the tablet executes an Android operating system, which is an ARM (ARM) processor that executes an Android operating system. The invention does not limit the host 140 The form of information transmitted between the touch processing device 130 and the touch information may be related to the proximity event occurring on the touch panel 120.

Since it is necessary to actively emit an electrical signal, the transmitter 110 or the active stylus requires power to supply the energy required to emit an electrical signal. In an embodiment, the source of electrical energy of the transmitter 110 can be a battery, particularly a rechargeable battery. In another embodiment, the power source of the pen may be a capacitor, in particular a super capacitor (Ultra-capacitor or Super-capacitor), such as an EDLC (Electrical Double Layered Capacitor), a virtual capacitor ( Pseudocapacitor), and hybrid capacitors, three types of super capacitors. The charging time of the supercapacitor is on the order of seconds, while in the embodiment of the invention, the discharge time of the supercapacitor is on the order of an hour. In other words, the active pen can be used for a long time only by charging for a short time.

In an embodiment, the touch panel 120 periodically emits a beacon signal. After the transmitter 110 or the stylus tip is connected to the touch panel 120, the transmitter 110 can sense the beacon signal by using the pen tip, and then start to send an electrical signal for a period of time for the touch panel 120 to detect. use. In this way, the transmitter 110 may stop emitting the electrical signal when the beacon signal is not detected, by extending the power usage time of the transmitter 110.

The beacon signal described above can be emitted using a plurality of first electrodes 121 and/or second electrodes 122. In an embodiment, when the first electrode 121 is used to generate the driving signal of the mutual capacitance touch detection, the driving signal and the beacon signal have different frequencies, and are not the resonance waves of the other side. Therefore, the beacon signal can be simultaneously emitted during the issuance of the driving signal, that is, mutual capacitance touch detection and electrical signal detection are simultaneously performed. In another embodiment, the driving signal and the beacon signal may be sent out in turn, that is, the mutual capacitance touch detection and the electrical signal detection are performed in a time-sharing manner. The frequency of the drive signal and the beacon signal may be the same or different.

In an embodiment, in order to enable the transmitter 110 to detect the beacon signal at a distance from the touch panel 120, the touch processing device 130 can be used with all the first electrodes 121 on the touch panel 120. The second electrode 122 emits a driving signal at the same time to maximize the sum of the signal strengths emitted by the touch panel 120.

Please refer to FIG. 2A, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. The transmitter 110 includes a first signal source 211, a second signal source 212, a first component 221 having a first impedance Z1, a second component 222 having a second impedance Z2, and a sharp segment 230. The first signal sent by the first signal source 211 is transmitted to the touch panel 120 via the first component 221 and the pen tip segment 230. Similarly, the second signal sent by the second signal source 212 is transmitted to the touch panel 120 via the second component 222 and the pen tip segment 230.

In an embodiment, the first signal is a signal including a first frequency f1, and the second signal is a signal including a second frequency f2. The first frequency f1 and the second frequency f2 may be a square wave signal, a sine wave signal, or a pulse width modulation (Pulse Width Modulation) signal. In an embodiment, the first frequency f1 is different from the frequency of the beacon signal and the frequency of the driving signal, and is different from the resonant frequency of the frequency of the beacon signal and the frequency of the driving signal. The second frequency f2 is different from the first frequency f1, the frequency of the beacon signal and the frequency of the driving signal, and is different from the first frequency f1, the resonant frequency of the signal of the beacon frequency signal and the driving frequency.

The signals of the two frequencies are each mixed after passing through the first element 221 having the first impedance Z1 and the second element 222 having the second impedance Z2, and are fed into the nib segment 230. on The first element 221 and the second element 222 may be impedances caused by a resistive element, an inductive element, a capacitive element (such as a solid capacitor), or any combination thereof. In the embodiment shown in the second A diagram, the second impedance Z2 may be fixed, the first impedance Z1 being variable, and corresponding to the amount of change of a certain sensor.

In another embodiment, the first impedance Z1 and the second impedance Z2 are both variable, and the ratio of the two corresponds to the amount of change of a certain sensor. In an embodiment, the sensor may be a retractable elastic nib, and the first impedance Z1 may vary according to the stroke or the degree of force of the elastic nib. In some examples, the first impedance Z1 described above linearly corresponds to a change in a physical quantity of the sensor. However, in another example, the first impedance Z1 described above nonlinearly corresponds to a change in the physical quantity of the sensor.

The first element 221 and the second element 222 described above may be different electronic components. For example, the first component 221 is a resistor and the second component 222 is a capacitor, and vice versa. For another example, the first component 221 is a resistor and the second component 222 is an inductor, and vice versa. For another example, the first component 221 is an inductor and the second component 222 is a capacitor, and vice versa. At least one of the first impedance Z1 and the second impedance Z2 is variable, such as a resistance variable resistor, a capacitance variable capacitor, or an inductor having a variable inductance value. When one of the first impedance Z1 and the second impedance Z2 is immutable, it can be set by using existing electronic components, such as a general fixed resistance resistor element, a fixed capacitance capacitor element or a fixed inductance value. Inductive component.

In an embodiment, the first component 221 can be a force sensing resistor (FSR), the resistance value of which corresponds to the force received to produce a predictable change, and the second component 222 can be a fixed resistance. In another embodiment, the first component 221 can be a variable resistor. Therefore, under the same conditions, the telecommunications issued by the pen tip 230 Among the numbers, the ratio of the intensity M1 of the signal portion of the first frequency f1 to the intensity M2 of the signal portion of the second frequency f2 is inversely proportional to the ratio of the first impedance Z1 to the second impedance Z2. In other words, M1/M2=k(Z2/Z1). For the circuit analysis of this part, please refer to the following description of the second D picture and the second E picture part.

Therefore, when the transmitter 110 is suspended above the touch panel 120, the nib segment 230 has not been displaced or stressed. Therefore, among the electrical signals detected by the touch panel 120, the signal portion of the first frequency f1 is The ratio of the intensity M1 to the intensity M2 of the signal portion of the second frequency f2 is a fixed value or a preset value. Or in another embodiment, the ratio of (M1-M2)/(M1+M2) or (M2-M1)/(M1+M2) is also a fixed value or a preset value. In addition to this, the pressure value can also be expressed by the ratio of M1/(M1+M2) or M2/(M1+M2). In addition to the four ratios described above, one of ordinary skill in the art will also be able to replace any ratio that involves strengths M1 and M2. In other words, when the ratio is detected as the fixed value, it can be determined that the sensor does not sense any change in the physical quantity. In an embodiment, the transmitter 110 does not touch the touch panel 120.

After the transmitter 110 contacts the touch panel 120, the nib segment 230 has a displacement stroke due to the force. The first impedance Z1 of the first element 221 is changed corresponding to the stroke or the degree of force of the pen tip segment 230, so that the intensity of the signal portion of the signal portion of the first frequency f1 and the signal portion of the second frequency f2 among the electrical signals The ratio of M2 changes, unlike the fixed value or the preset value described above. The touch panel 120 can use the above relationship to generate a corresponding sensing value according to the ratio. The aforementioned fixed value or preset value is not limited to a single value, and may be a range within an error tolerance.

It should be noted that the ratio does not necessarily have a linear relationship with the sensed value. more Further, the sensing value does not necessarily have a linear relationship with the displacement stroke of the sensor or the degree of force of the sensor. The sensed value is only a value sensed by the touch panel 120, and the present invention is not limited to the relationship. For example, the touch panel 120 can use the lookup table or a plurality of calculation formulas to correspond to the sensed value from the ratio.

Please refer to FIG. 2B, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. Similar to the embodiment of the second A diagram, the embodiment shown in the second diagram B adds an amplifier 240 for amplifying the mixed signal after the mixed signal output from the first element 221 and the second element 222. In an embodiment, for the first frequency f1 and the second frequency f2 described above, the amplification or gain of the amplifier 240 is the same. In one embodiment, the amplification or gain of the amplifier 240 is fixed. In another embodiment, the amplification or gain of the amplifier 240 is adjustable. In other words, the amplifier 240 is a variable gain amplifier.

Please refer to FIG. 2C, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. Similar to the embodiment of FIG. 2A, the embodiment shown in FIG. C is connected to the first amplifier 241 and the second amplifier 242 respectively after the output signals of the first signal source 211 and the second signal source 212. And for respectively amplifying the output signals of the first signal source 211 and the second signal source 212. In an embodiment, the amplification or gain of the first amplifier 241 and the second amplifier 242 are fixed, and the gains of the two are the same. In another embodiment, the amplification or gain of the first amplifier 241 and the second amplifier 242 are adjustable, and the gains of the two are the same. In other words, the first amplifier 241 and the second amplifier 242 are variable gain amplifiers.

Assuming the gains and other examples in the second and second C-picture embodiments In the case where the conditions are the same, the embodiment shown in the second B diagram will save power compared to the embodiment shown in the second C diagram. Since the signal passing through the first element 221 or the second element 222 has not been amplified, the energy consumed by this portion is omitted. In the present application, an amplifier can be placed in front of the nib section 230 to mix and amplify the signals from the first element 221 and the second element 222 and output to the nib section 230. In addition to this, the amplifier can also be placed after the signal source to provide a larger input signal to the first component 221 and the second component 222. One of ordinary skill in the art will appreciate that the present application does not limit where the amplifier is placed, or whether it has an amplifier. Therefore, in the following embodiments, the amplifiers are omitted.

Please refer to the second D diagram and the second E diagram, which are two circuit analysis diagrams of the second A diagram embodiment. In this embodiment, when the signal emitted by the nib segment 230 forms a capacitive coupling with the electrode on the touch panel 120, the total impedance of the nib segment 230 and the touch panel 120 is assumed to be Z3. The first frequency signal strength M1 and the second frequency signal strength M2 may correspond to the current value of the circuit flowing through the impedance value Z3. Since the distance between the nib segment 230 and the touch panel 120 is unknown, even if the nib segment 230 contacts the touch panel 120, the distance between the nib segment 230 and each electrode is unknown, so the impedance value Z3 is variable. The relative position between the nib segment 230 and the touch panel 120 is constantly changing.

In order to separately analyze the current values corresponding to the first frequency signal intensity M1 and the second frequency signal strength M2, the second D map and the second E map are respectively used for explanation. In the circuit analysis of the second D diagram, the second signal source 212 does not output a signal to the second component 222. The signal output by the first signal source 211 passes through the first component 221 and then flows through the parallel second. The component 222 and the touch panel 120 are returned to the first signal source 211 via the ground to form a loop. In the circuit analysis of the second E diagram, the first signal source 211 does not output a signal to the first An element 221, and the signal output by the second signal source 212 passes through the second component 222, and then flows through the parallel first component 221 and the touch panel 120 respectively, and then passes through the ground and then returns to the second signal source 212. Loop.

In the second D diagram, the total impedance of the above loop is Z, which can be expressed by the following equation (1), where // represents parallel: Z = Z1 + (Z2 / / Z3) Equation (1) Equation (1) It can also be expressed as equation (2):

It is assumed that the voltages output by the first signal source 211 and the second signal source 212 are both V, and the current I1 flowing through the first element 221 is V/Z. The current I3 flowing through the touch panel 120 is a shunt of the current I1, which can be expressed as equation (3):

Similarly, in the second E diagram, the total impedance of the above loop is Z', which can be expressed by the following equation (4), where // represents parallel: Z'=Z2+(Z1//Z3) Equation (4) Equation (4) can be expressed as equation (5):

Since the voltage output by the second signal source 212 is also V, the current I2 flowing through the second element 222 is V/Z'. The current I3' flowing through the touch panel 120 is a shunt of the current I2, which can be expressed as equation (6):

Dividing equation (3) from equation (6) yields equation (7): I3/I3'=Z2/Z1 equation (7)

Since M1 and M2 correspond to I3 and I3', respectively, the ratio of the intensity M1 of the signal portion of the first frequency f1 to the intensity M2 of the signal portion of the second frequency f2 will be the ratio of the first impedance Z1 to the second impedance Z2. In inverse proportion. In other words, M1/M2=k(Z2/Z1). From equations (3) and (6), current values I3 and I3' have a common common divisor CD. If any ratio of I3 to I3' can be known, as well as the known second impedance Z2, the variable first impedance Z1 can be pushed back. In other words, it is not necessary to be limited by equation (7).

If only a single first element 221 of variable impedance Z1 is used, the third impedance Z3 between the tip segment 230 and the touch panel 120 is unknown due to the entire series of loops. There are two unknown variables in the same equation, and the value of the variable impedance Z1 cannot be solved. If the touch processing device 130 hardly assumes a value of the third impedance Z3, the error range of the calculated value of the variable impedance Z1 becomes larger.

Please refer to the second F diagram, which is a schematic diagram of the interior of a transmitter 110 according to an embodiment of the invention. The difference from the embodiment of FIG. 2A is that the embodiment of the second F diagram includes only a single signal source 210 and a signal switch 215 connected to the signal source 210 for selectively time-divisionally transmitting signals. The output signal of source 210 is coupled to first element 221 and second element 222.

The circuit analysis of the second D picture and the second E picture can be applied to the embodiments of the second A picture to the second C picture for analyzing the signal corresponding to the first frequency f1 and the second frequency f2 while flowing through the touch panel 120 The signal strength can also be applied to the embodiment of the second F-picture. When the signal switch 215 is switched to the first component 221 in the first time, it can be applied to the circuit analysis of the second D diagram. When the signal switch 215 is switched to the second component 222 in the second time, it can be applied. Circuit analysis in Figure 2E. The touch processing device 130 can calculate the signal intensity or current value I3 obtained by the first time and the signal strength or current value I3′ of the second time amount, plus the known second impedance Z2. The value of the first impedance Z1 is derived.

A person skilled in the art can understand that the present invention can simultaneously transmit signals of different frequencies to the first element 221 and the second element 222 by using two signal sources, or can simultaneously send signals of the same frequency to the first time by using a single signal source. An element 221 and a second element 222. Both methods apply to the same circuit analysis and the same calculation method. Both of the following embodiments can utilize both methods.

Please refer to the third figure, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. Similar to the embodiment of FIG. 2A, the transmitter 110 includes a first signal source 211, a second signal source 212, a first capacitor 321 having a first capacitance value C1, and a second capacitance value C2. A second capacitor 322, and a tip segment 230.

The two signal sources 211 and 212 may be a pulse width modulated first signal source (PWM1) and a pulse width modulated second signal source (PWM2), respectively. The frequencies of the two sources can be the same or different. The transmitter 110 includes a second capacitor 322 having a fixed capacitance value C2 and a first capacitor 321 having a variable capacitance value C1, which are respectively connected to the signal sources PWM2 212 and PWM1 211 described above. Since the capacitance value C1 changes with the pressure value received by the pen tip segment 230, the embodiment shown in the third figure may include a capacitive force sensor or a force sensing capacitor (FSC, Force Sensing Capacitor). In an embodiment, the capacitive force sensor can be implemented using a printed circuit board (PCB) or other material. The structure of the force sensing capacitor will be described later in this application.

The ratio of the intensities of the two sources and the ratio of the impedances of the two capacitors 321 and 322 In inverse proportion. When the tip segment 230 of the stylus does not touch the object, or the force sensor does not detect the force, the impedance value of the first capacitor 321 does not change. The impedance ratio of the two capacitors 321 and 322 is also fixed. When the transmitter 110 is suspended above the touch panel/screen 120 and the transmitted electrical signal can be detected, the intensity ratio of the two sources is fixed.

However, when the tip portion 230 of the transmitter 110 contacts the object, or the force sensor detects a force, the impedance of the first capacitor 321 changes. The impedance ratio of the two capacitors 321 and 322 also changes. When the transmitter 110 touches the surface of the touch panel/screen 120 and the electrical signal emitted by the transmitter 110 can be detected, the intensity ratio of the two signal sources varies with the force received by the force sensor. .

Please refer to FIG. 4A, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. Similar to the embodiment of the third figure, the transmitter 110 includes a first signal source 211, a second signal source 212, a first capacitor 321 having a first capacitance value C1, and a second capacitor having a second capacitance value C2. Capacitor 322, and nib segment 230. The transmitter 110 can include a plurality of sensors for detecting a plurality of states. In one embodiment, the nib segment 230 includes a pressure sensor for detecting the state of the tip of the stylus and is reflected above the electrical signal it emits. In another embodiment, the transmitter 110 can include a plurality of buttons, such as an Eraser button and a Barrel button. In other embodiments, the transmitter 110 can also include a switch for sensing whether the pen tip is in contact with a touch screen or other object. One of ordinary skill in the art will appreciate that the transmitter 110 can include more buttons or other forms of sensors and is not limited to the examples described above.

In the embodiment of FIG. A, the first capacitor 321 is connected in parallel with two other eraser capacitors 441 and a pen holder capacitor 442, which are respectively connected to the above-mentioned Eraser button and pen. The Barrel button, that is, the switches SWE and SWB. When the above button or switch is pressed, the capacitors 441 and 442 are connected in parallel with the first capacitor 321 so that the capacitance value in the PWM1 signal path changes, resulting in a change in the impedance ratio of the PWM1 and PWM2 signal paths, so that the two signals The intensity ratio changes accordingly.

Since the capacitance value C1 and the impedance value of the first capacitor 321 change, when the eraser capacitor 441 and the sheath capacitor 442 are connected in parallel, the ratio of the parallel impedance value to the impedance value of the second capacitor 322 falls within a range. Inside. In the embodiment shown in FIG. A, it is assumed that within the variable range of the first capacitor 321, the signal strength ratio of PWM1/PWM2 falls within a first range. After the first capacitor 321 is connected in parallel with the sheath capacitor 442, that is, after the pen button is pressed, the signal ratio of PWM1/PWM2 falls within a second range. After the first capacitor 321 is connected in parallel with the eraser capacitor 441, that is, after the eraser button is pressed, the signal ratio of PWM1/PWM2 falls within a third range. After the first capacitor 321 is connected in parallel with the sheath capacitor 442 and the eraser capacitor 441, that is, after the pen button and the eraser button are simultaneously pressed, the signal ratio of the PWM1/PWM2 falls within a fourth range. The capacitance values and impedance values of the pen holder capacitor 442 and the eraser capacitor 441 can be adjusted such that the first range, the second range, the third range, and/or the fourth range do not overlap. Since the above possible ranges do not overlap, it is possible to know which button is pressed from which range the signal strength ratio falls. Then, from the ratio of the signal strength, what is the degree of stress on the thrust sensor?

Please refer to FIG. 4B, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. Compared with the embodiment of FIG. 4A, in the embodiment of FIG. 4B, the second capacitor 322 is connected in parallel with the other two eraser capacitors 441 and the pen holder capacitor 442, respectively connected to the above-mentioned Eraser button. And the Barrel button, that is, the switches SWE and SWB. When the above button or switch is pressed, the pen holder capacitor 442 and the eraser capacitor 441 are connected in parallel with the second capacitor 322, resulting in a change in the impedance ratio of the PWM1 and PWM2 signal paths, so that the intensity ratio of the two signals changes accordingly. .

Since the capacitance value C1 and the impedance value of the first capacitor 321 change, when the second capacitor 322 and the eraser capacitor 441 are connected in parallel with the sheath capacitor 442, the ratio of the impedance value of the first capacitor 321 and its parallel connection falls within a range. Inside. In the embodiment shown in FIG. 4B, it is assumed that within the variable range of the first capacitor 321, the signal strength ratio of PWM1/PWM2 falls within a first range. After the second capacitor 322 is connected in parallel with the sheath capacitor 442, that is, after the pen button is pressed, the signal ratio of PWM1/PWM2 falls within a fifth range. After the second capacitor 322 is connected in parallel with the eraser capacitor 441, that is, after the eraser button is pressed, the signal ratio of PWM1/PWM2 falls within a sixth range. After the second capacitor 322 is connected in parallel with the sheath capacitor 442 and the eraser capacitor 441, that is, after the pen button and the eraser button are simultaneously pressed, the signal ratio of the PWM1/PWM2 falls within a seventh range.

The fourth B diagram can also use the spirit of the fourth A embodiment to adjust the capacitance value and the impedance value of the pencil capacitor 442 and the eraser capacitor 441 to make the first range, the fifth range, the sixth range, and / or the seventh range does not overlap. In turn, it can be known which button is pressed and the degree of force applied to the thrust sensor.

Please refer to the fifth figure, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. The fifth embodiment may be a variation of the second A, third, and fourth A and B embodiments, and the changes made in the fifth embodiment may be applied to the embodiments of the above figures.

Compared with the embodiment of FIG. A, the embodiment of the fifth figure has a loop electric The pole 550 is connected to a ring wire 551. The ring-shaped electrode lead 551 of the fifth figure can be connected to a third signal source 513 through a ring capacitor 523 having a fixed capacitance Cr. A ring electrode 550 surrounds the tip section 230, which is electrically coupled to the annular electrode lead 551 and to the printed circuit board at the rear end. Although referred to as ring electrode 550 in the present application, in some embodiments, ring electrode 550 can include a plurality of electrodes. The present application does not limit the number of ring electrodes 550, which is referred to as a ring electrode 550 for convenience. The ring electrode 550 is electrically insulated from the tip of the pen, and the two are not electrically coupled.

In the fifth figure, six switches Sw1 to Sw6 are included. Assuming that the nib segment 230 is to radiate the first signal source 211, Sw1 can be shorted and Sw2 can be opened. Conversely, you can open Sw1. Or short-circuit Sw1 and Sw2 at the same time. Similarly, assuming that the nib segment 230 is to radiate the second signal source 212, Sw3 can be shorted and Sw4 can be opened. Conversely, you can open Sw3. Or short-circuit Sw3 and Sw4 at the same time. Assuming that the ring electrode 550 is to radiate the third signal source 513, Sw5 can be shorted and Sw6 can be opened. Conversely, you can open Sw5. Or short-circuit Sw5 and Sw6 at the same time.

The first signal source 211 and the second signal source 212 may include signals of different frequencies, or may be signals including a plurality of different frequency groups. Similarly, the third signal source 513 of the fifth figure may also include signals of different frequencies from the first signal source 211 and the second signal source 212, and may also include different frequency groups from the first signal source 211 and the second signal source 212. signal of. Similarly, the first signal source 211 and the second signal source 212 may include a pulse width modulation (PWM) signal. The frequencies of the two signal sources 211 and 212 may be the same or different. Similarly, the third source 513 of the fifth diagram may also include a pulse width modulated (PWM) signal. The frequencies of these three sources can be the same or different.

Please refer to the sixth figure, which is a schematic flowchart of a method for determining a sensor or an active stylus tip sensing value according to an embodiment of the present invention. The method can be performed by the touch processing device 130 of the first embodiment. The touch processing device 130 is connected to the plurality of first electrodes 121 and the plurality of second electrodes 122 on the touch panel 120 for detecting electrical signals emitted by the pen tip segment 230 of the transmitter 110. The touch processing device 130 can determine the relative position of the transmitter 110 and the touch panel 120 according to the signal strength received by the plurality of first electrodes 121 and the plurality of second electrodes 122. In addition to this, the method shown in the sixth figure can be used to determine the force sensing value of the transmitter 110. In one embodiment, the force sensing value is the pressure value experienced by the nib segment 230.

The embodiment of the sixth figure may correspond to the embodiment of the second A to fifth figures. The first two steps 610 and 620 respectively calculate the signal strength M1 corresponding to the first signal source 211 and the second signal source 212. M2. These two steps 610 and 620 can be performed in either order or simultaneously. When the electrical signal sent by the first signal source 211 has the first frequency f1 and the electrical signal sent by the second signal source 212 has a second frequency f2, the signal strength M1 corresponds to the intensity of the signal of the first frequency f1, The signal strength M2 corresponds to the strength of the signal at the second frequency f2. When the electrical signal sent by the first signal source 211 has the first frequency group F1 and the electrical signal sent by the second signal source 212 has a second frequency group F2, the signal strength M1 corresponds to the first frequency group F1. The total intensity of each of the internal frequency signals, the above-mentioned signal strength M2 corresponds to the total intensity of each frequency signal in the second frequency group F2. As mentioned above, the frequency referred to herein may also be the frequency of the pulse width modulation.

Then, in step 630, a proportional value is calculated based on M1 and M2. This ratio has been given five examples in the above, for example, M1/M2, (M1-M2)/(M1+M2), (M2-M1)/(M1+M2), M1/(M1+M2) or M2/(M1+M2). In addition to the five ratios described above, one of ordinary skill in the art will also be able to replace any ratio that involves the strengths M1 and M2. Then, step 640 is executed to determine whether it is a preset value or falls within a preset range according to the proportional value. If the determination result is true, step 650 is executed to determine that the sender 110 is floating and does not touch the touch panel 120. Otherwise, step 660 is performed to calculate the sensed value of the nib segment 230 based on the scale value. The sensed value may or may not be related to the degree of force and/or the stroke, or may be related to the degree of force and/or stroke. The step of calculating the sensing value can be calculated by using the look-up table method, the linear interpolation method, and the quadratic curve method, and the correspondence between the proportional value and the sensed value is determined.

When the embodiment of the sixth figure is applicable to the embodiments of the fourth A and fourth B, additional steps may be performed at step 660. For example, when applied to the embodiment of FIG. 4A, it can be determined that the scale value calculated in step 630 falls within the first range, the second range, the third range, or the fourth range described above. Accordingly, in addition to the sensed value of the nib segment 230, it can be inferred whether the pen button and/or the eraser button are pressed. Similarly, when used in the embodiment of FIG. 4B, it can be determined that the scale value calculated in step 630 falls within the first range, the fifth range, the sixth range, or the seventh range described above. Accordingly, in addition to the sensed value of the nib segment 230, it can be inferred whether the pen button and/or the eraser button are pressed.

In an embodiment of the present invention, the controller or circuit in the transmitter 110 does not need to determine the degree of force of the pen tip segment 230, and simply changes the first impedance Z1 of the first component 221 by the force of the pen tip segment 230 alone. And one or both of the second impedance Z2 of the second component 222, such that the transmitted first frequency f1 or the first frequency group F1 signal strength and the second frequency f2 and the second frequency group F2 signal strength One or both change. In contrast, when the electrical signal is received via the touch panel 120, the first frequency f1 or the first frequency group F1 is selected according to the demodulated electrical signal. The intensity of the signal portion M1 and the ratio of the second frequency f2 to the intensity M2 of the signal portion of the second frequency group F2 can determine the extent to which the nib segment 230 is stressed.

In an embodiment of the invention, the transmitter 110 does not need to measure the degree of force of the nib segment 230, that is, the at least one attribute of the electrical signal emitted by the nib segment 230 can be controlled to correspond to the degree of force. In one embodiment, the above measurement includes a function of analog-to-digital conversion, in other words, the transmitter 110 does not internally include an element that converts the degree of force from analog to digital. For example, the transmitter does not include an analog digital signal converter that converts the degree of force. Please refer to FIG. 7A, which is a schematic diagram of the interior of a transmitter 110 according to an embodiment of the invention. The embodiment of the seventh embodiment includes a first component 221 having a first impedance Z1 and a second component 222 having a second impedance Z2, as compared with the embodiments of the second A to fifth embodiments. And a sharp section 230. The first element 221 and the second element 222 described above may be electronic components caused by a resistive element, an inductive element, a capacitive element (such as a solid capacitor), or any combination thereof. In the embodiment shown in FIG. A, the second impedance Z2 may be fixed, the first impedance Z1 is variable, and corresponds to the amount of change of a certain sensor, such as the tip segment 230. Stress situation. The first element 221 and the second element 222 of the embodiment of the seventh embodiment can be applied to the respective embodiments of the second to fifth figures, and will not be described in detail herein.

The seventh embodiment of the present invention differs from the previous embodiment in that it further includes a single signal source 714 for feeding electrical signals to the first element 221 and the second element 222 described above. The control unit 760 is further configured to measure the first current value I1 and the second current value I2 respectively outputted by the electrical signal after passing through the first component 221 and the second component 222. Control unit 760 can also calculate a proportional value accordingly. The ratio value may be I1/(I1+I2), I2/(I1+I2), I1/I2, I2/I1, (I1-I2)/(I1+I2), or (I2-I1)/(I1) +I2) and so on. One of ordinary skill in the art can infer that He uses the other types of ratio values calculated by the current values I1 and I2.

The calculated ratio value can be used to estimate the force of the pen tip segment 230. The control unit 760 can send the data calculated by the first current value I1 and the second current value I2 through a transmitter wireless communication unit 770. The host 140 can receive the above-mentioned data from a host wireless communication unit 780 to know the force of the pen tip segment 230.

Please refer to FIG. 7B, which is a schematic diagram of the inside of a transmitter 110 according to an embodiment of the invention. The difference from the embodiment of the seventh embodiment is that the control unit 760 can send the data calculated by the first current value I1 and the second current value I2 through a transmitter wired communication unit 771. The host 140 can receive the above-mentioned data from a host wired communication unit 781 to know the force of the pen tip segment 230.

Please refer to FIG. 7C, which is a schematic diagram of the interior of a transmitter 110 according to an embodiment of the invention. The difference from the embodiment of FIG. 7B is that the transmitter 110 no longer includes the single signal source 714 described above, but directly uses the electrical signal obtained by the transmitter wired communication unit 771 as a signal source. Since the transmitter wired communication unit 771 is connected to the host wired communication unit 781, the above electrical signals can use the power of the host 140.

Please refer to FIG. 7D, which is a schematic diagram of the interior of a transmitter 110 according to an embodiment of the invention. The difference from the embodiment of the seventh embodiment is that the transmitter 110 no longer includes the single signal source 714 described above, but directly from the touch panel 120 when the pen tip segment 230 is directly connected to the touch panel 120. The signal obtained by the first electrode 121 and/or the second electrode 122 serves as a signal source.

It should be noted that the embodiment of the seventh embodiment A to D can apply the variation of the third embodiment, the first component 221 can be the first capacitor 321 described above, and the second component 222 can It is the second capacitor 322 described above. The embodiments of Figures 7 through D can be applied with variations of the fourth embodiment of Figures A and B. The first element 221 can be connected in parallel with the corresponding elements of the other switches, or the second element 222 can be combined with other switches. The respective components are connected in parallel such that the control unit 760 can know the state of those switches based on the range in which the calculated proportional values fall.

Please refer to FIG. 8 , which is a schematic flowchart of a method for determining a sensor tip value of a transmitter according to an embodiment of the invention. The eighth embodiment is a method of detecting a sensed value similar to the sixth embodiment. The sixth figure is used to calculate the signal strengths M1 and M2 corresponding to the first frequency (group) and the second frequency (group), and then use the ratio values of the two to calculate the sensing value. The embodiment of the eighth embodiment is applicable to an embodiment in which only a single signal source is fed, and the first current amount I1 and the second current amount I2 corresponding to the first element 221 and the second element 222 are calculated, and the two are used. The scale value is used to calculate the sensed value.

The method may be performed by the control unit 760 among the seventh A to D diagram embodiments. The first two steps 810 and 820 respectively calculate the first current amount I1 and the second current amount I2 corresponding to the first element 221 and the second element 222. These two steps 810 and 820 can be performed in either order or simultaneously. Then, in step 830, a proportional value is calculated based on I1 and I2. This ratio has been given several examples, such as I1/(I1+I2), I2/(I1+I2), I1/I2, I2/I1, (I1-I2)/(I1+I2). , or (I2-I1) / (I1 + I2), and the like. Then, step 840 is executed to determine whether it is a preset value or falls within a preset range according to the scale value. If the determination result is true, step 850 is performed, and the sender 110 is considered to be floating and does not touch the touch panel 120. Otherwise, step 860 is performed to calculate the sensed value of the nib segment 230 based on the scale value. The sensed value may or may not be related to the degree of force and/or the stroke, or may be related to the degree of force and/or stroke. Steps to calculate the sensed value You can use the look-up table method, the linear interpolation method, and the quadratic curve method to calculate the correspondence between the proportional value and the sensed value.

In some embodiments, when the first element 221 or the second element 222 is connected in parallel with the corresponding elements of the other switches, as in the embodiments of FIGS. 4A and 4B, additional steps may be performed at step 860. For example, when applied to the embodiment of FIG. 4A, it can be determined that the scale value calculated in step 830 falls within the first range, the second range, the third range, or the fourth range described above. Accordingly, in addition to the sensed value of the nib segment 230, it can be inferred whether the pen button and/or the eraser button are pressed. Similarly, when used in the embodiment of FIG. 4B, it can be determined that the scale value calculated in step 830 falls within the first range, the fifth range, the sixth range, or the seventh range described above. Accordingly, in addition to the sensed value of the nib segment 230, it can be inferred whether the pen button and/or the eraser button are pressed.

Please refer to FIG. 9A, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. The embodiment of the ninth A diagram can be applied to the transmitters 110 of the second to fifth figures. The horizontal axis of the ninth A diagram is the time axis, and the order is from left to right. As shown, an optional noise detection period may be included before the touch panel/screen 120 emits a beacon signal. The noise detected during this noise detection may come from the touch panel/screen and the electronic system or background environment in which it is located. The touch panel/screen 120 and the touch processing device 130 can detect one or more frequencies included in the noise signal. The section on noise detection will be explained later.

In one embodiment, the touch panel/screen 120 emits a beacon signal, and the transmitter 110 includes a demodulation transducer that can detect the beacon signal. Please refer to FIG. 29, which is a block diagram of a detection lighthouse signal system according to an embodiment of the invention. The detection light The tower signal system 2900 includes a receiving electrode 2910, a detecting module 2920, and a demodulator 2930. In one embodiment, the receiving electrode 2910 may be the ring electrode 550 described above, or the pen tip segment 230 described above, or other electrodes. The receiving electrode 2910 sends the received signal to the subsequent detecting module 2920.

The detection module 2920 includes an analog front end 2921 and a comparator 2922. One of ordinary skill in the art can understand what the analog front end 2921 does and will not be described in detail herein. In this embodiment, the analog front end 2921 can include a voltage value that represents the strength of the signal. The comparator 2922 is for comparing a reference voltage Vref with a voltage signal indicating the strength of the received signal. When the voltage signal is higher than the reference voltage, it indicates that a strong enough signal is received, so the comparator 2922 outputs an activation signal or an enable signal to the demodulation converter 2930. The demodulation transformer 2930 can perform demodulation on the received signal to know whether the frequency of the beacon signal is included in the received signal. When the voltage signal is lower than the reference voltage, the comparator 2922 can output a shutdown signal to the demodulator 2930, and the demodulator 2930 stops demodulating the received signal.

When the transmitter 110 does not receive the beacon signal for a period of time, it can switch to a sleep mode to turn off the above-described demodulation transformer 2930 to save power consumption. However, since the detection module 2920 consumes less power, it is possible to continuously detect whether the received signal strength exceeds a predetermined value in the sleep mode. When a predetermined value is exceeded, the sleep mode can be switched to a less power-saving mode, and the demodulator 2930 is activated for demodulation. At the same time, the rest of the transmitter 110 is still off. Assuming that the demodulation transformer 2930 considers that the received signal does not contain a beacon signal, after a period of time, the demodulation transformer 2930 can be turned off, and the power saving mode enters a more power-saving sleep mode. Conversely, when the demodulation transformer 2930 considers that the received signal contains a beacon signal, the demodulation transformer 2930 can wake up other parts of the transmitter 110. The transmitter 110 is converted from the power saving mode to the normal operating mode.

Returning now to the embodiment of Figure 9A, after a delay time of length L0 has elapsed, the transmitter 110 issues an electrical signal during the T0 period and the T1 period, respectively. Between these two time periods T0 and T1, there may be a delay time of L1 length. The two periods T0 and T1 may be of equal length or unequal length. T0 and T1 can be collectively referred to as a signal frame. The touch processing device 130 detects the electrical signal emitted by the transmitter 110 during the two periods T0 and T1. Then, after the optional delay time of the L2 length, the touch processing device 130 performs an optional other mode detection step, such as the previously mentioned capacitive detection mode, for detecting the non-active pen or finger.

The present invention does not limit the lengths of the delay times L0, L1, and L2 described above, and the three may be zero or an arbitrary length of time. The length of the three can be related or not. In an embodiment, among the various periods shown in FIG. A, only the T0 and T1 periods in the signal frame are necessary, and other periods or steps are optional.

Please refer to Table 1, which is a modulation diagram of the electrical signal of the transmitter 110 according to an embodiment of the invention. In Table 1, the transmitter 110 is in a floating state, that is, the force sensor does not feel any pressure. Since the pen tip segment 230 of the transmitter 110 does not touch the touch panel / Screen 120, in order to enhance the signal, therefore, in the embodiment of Table 1, the first signal source 211 and the second signal source 212 generate the same frequency group Fx in the same period. For example, in the state in which the pen button is pressed, the first signal source 211 and the second signal source 212 both transmit the frequency group F0 during the T0 period, and the first signal source 211 and the second signal during the T1 period. Source 212 transmits a frequency group F1. When the touch processing device 130 detects the frequency group F0 in the T0 period and detects the frequency group F1 in the T1 period, it can be inferred that the pen button of the transmitter 110 in the floating state is pressed.

The aforementioned frequency group Fx contains signals of at least one frequency, which are interchangeable with each other. For example, the frequency group F0 may include f0 and f3 frequencies, the frequency group F1 may include f1 and f4 frequencies, and the frequency group F2 may include f2 and f5 frequencies, and the like. Whether receiving the f0 frequency or the f3 frequency, the touch processing device 130 regards the frequency group F0 as being received.

In another embodiment, the transmitter 110 in the floating state does not necessarily require both sources 211 and 212 to signal the same frequency group. The present invention is not limited to the first embodiment as the only embodiment. In addition, the transmitter 110 can also include more buttons or sensors, and the invention is not limited to only two buttons.

Please refer to Table 2, which is a schematic diagram of a modulation of the electrical signal of the transmitter 110 according to an embodiment of the invention. In Table 2, the tip portion 230 of the transmitter 110 is in a contact state, that is, the force sensor senses the pressure.

In the embodiment shown in Fig. A, the following is a case where the pen button SWB is pressed. During the T0 period, the signal source of the first signal source 211 is grounded, and the second signal source 212 emits the frequency group F0. Therefore, the electrical signal of the transmitter 110 has only the frequency group sent by the second signal source 212 during the T0 period. F0. During the T1 period, the signal source of the second signal source 212 is grounded, and the first signal source 211 emits a frequency group F1. Also, since the impedance value of the first capacitor 321 is changed at the time of contact, the degree of stress of the nib segment 230 can be calculated from the intensity ratio of the F0 and F1 signals respectively received during the T0 and T1 periods. In addition, since the touch processing device 130 detects the F0 signal during the T0 period and detects the F1 signal during the T1 period, it can be inferred that the pen button is pressed.

In the embodiment shown in Fig. 4B, the following is the case where the pen button SWB is pressed. During the T0 period, the signal source of the first signal source 211 is grounded, the second signal source 212 emits a frequency group F0, and the second capacitor 322 is connected in parallel with the sheath capacitor 442. Although the electrical signal of the transmitter 110 has only the frequency group F0 emitted by the second signal source 212 during the T0 period, its signal strength is different from the case where the pen button SWB is not pressed. During the T1 period, the signal source of the second signal source 212 is grounded, and the first signal source 211 emits the frequency group F1. Also, since the impedance value of the first capacitor 321 changes during the contact, it may be respectively according to the T0 and T1 periods. The intensity ratio of the received F0 and F1 signals is used to calculate the force of the stylus. In addition, since the touch processing device 130 detects the F0 signal during the T0 period and detects the F1 signal during the T1 period, it can be inferred that the pen button is pressed.

Please refer to Table 3, which is a modulation diagram of the electrical signal of the transmitter 110 according to an embodiment of the invention. In this embodiment, it is possible to know which buttons are pressed according to the frequency group.

Please refer to Table 4, which is a modulation diagram of the electrical signal of the transmitter 110 according to an embodiment of the present invention. In this embodiment, it is possible to know which buttons are pressed according to the frequency group, and also rely on the ratio of the signal strengths received by the T0 and T1 periods to estimate the degree of force of the stylus tip.

Please refer to FIG. BB, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. It is another variation of the embodiment of Figure 9A. And ninth The difference between the A maps is that the noise detection step is performed after the T1 period. Then, perform other mode detection.

Please refer to FIG. C, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. The signal modulation of the ninth C diagram can be applied to the transmitter 110 shown in the fifth figure. Another function of adding the ring electrode 550 is to enhance the signal strength when the active pen is suspended, so as to facilitate the touch panel detection. The range of the pen's suspension.

The signal of the ninth C diagram is modulated into a signal that is emitted when the transmitter 110 is in a floating state. In this state, the signal frame sent by the transmitter 110 contains only a single R period. During this R period, the ring electrode 550 and the tip section 230 can simultaneously emit electrical signals. In an embodiment, the electrical signals may be from the same source, having the same frequency and/or modulation. For example, the ring electrode and the nib all emit an electrical signal of the third signal source 513. For example, the ring electrode 550 and the pen tip segment 230 can collectively emit electrical signals of the first, second, and third signal sources in order to utilize the maximum power of each of the signal sources, respectively. The touch processing device 130 only needs to detect the electrical signal emitted by the ring electrode 550 during the R period, and it can be known that the transmitter 110 is floating at a certain position of the touch panel 120. If the electrical signals emitted by the ring electrode 550 and the pen tip segment 230 are from the same signal source, or have the same frequency group, the signal intensity will be the largest, so that the touch panel can detect the stylus suspension range to the maximum. . Within the R period of another embodiment, it is also possible to emit an electrical signal only through the ring electrode 550.

Please refer to FIG. 9D, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. The signal modulation of the ninth D diagram can be applied to the transmitter 110 shown in the fifth figure. In the ninth C picture, a delay time or blank period L1 is included after the R period, and then the touch panel performs other forms of detection. Embodiment of the ninth D diagram and Compared to the ninth C picture, the time of the L1 period becomes longer. The ninth D map is compared with the embodiment of the ninth E diagram, and the length of the L1 period is equal to the sum of the L1 period, the T0 period, the L2 period, the T1 period, and the T3 period of the ninth E map. Therefore, if the touch processing device 130 of the ninth D diagram does not detect any electrical signal during the fixed length L1 period, it can be known that the transmitter 110 is in a floating state.

Please refer to FIG. 9E, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. The signal modulation of the ninth E diagram can be applied to the transmitter 110 shown in the fifth figure. The ninth E-picture embodiment can be said to add the front of the signal frame of the ninth embodiment to the R period. In this embodiment, regardless of whether the nib segment 230 is depressed, the transmitter 110 uniformly emits an electrical signal from the nib during the T0 period and the T1 period, thereby saving some logic circuit design. However, compared to the embodiments of the ninth C and ninth D diagrams, the embodiment of the ninth E diagram wastes electrical signal power emitted during the T0 period and the T1 period. On the other hand, the touch processing device 130 does not need to detect in the R period. As long as the electrical signal emitted by the nib segment 230 can be detected in the T0 period and the T1 period, the nib segment 230 can be known. Whether or not the pressure is received, thereby knowing whether the transmitter 110 is in a floating state.

Please refer to FIG. F, which is a timing diagram of signal modulation of the transmitter 110 according to an embodiment of the invention. The signal modulation of the ninth F map can be applied to the transmitter 110 shown in the fifth figure. In the embodiment of the ninth E diagram, the proportional relationship between the R period and the length of the T0 period and the T1 period is not limited. In the embodiment of the ninth F diagram, the length ratio of the R period to the T0 period and the T1 period is 1:2:4. As such, it is assumed that the touch processing device 130 can perform N samples in a unit time, and N is a positive integer. Therefore, in the R period and the T0 period and the T1 period, the touch panel can perform N: 2N: 4N sampling. The present invention does not limit the length ratio of the three periods, for example, the period in which the power of the electrical signal is most powerful can be kept for a minimum unit time, The period in which the power of the outgoing electrical signal is minimized lasts for the longest unit time. For example, the length ratio can be 1:3:2, or 1:2:3, etc., depending on the design. Although in the above-mentioned pages, only the modulation of the two periods T0 and T1 is mentioned, the present invention is not limited to the modulation of two periods, but can be applied to the modulation of more periods.

In one embodiment, the transmitter 110 can emit a stronger electrical signal when the nib is not in contact and emit a less intense electrical signal when the nib is in contact. Accordingly, the touch processing device 130 can have a greater probability of detecting the transmitter 110 suspended above the touch panel 120. Moreover, after the transmitter 110 contacts the touch panel 120, the energy consumed by the transmitter 110 can be saved.

For example, in the embodiments of the ninth C and D diagrams, that is, when the nib segment 230 is not touched, the electrical signal emitted during the R period may be greater than the electrical signal emitted during the L1 period corresponding to the T0 period and the T1 period. For example, during the R period, the electrical signals emitted by the nib segment 230 and the ring electrode 550 are from the first signal source 211, the second signal source 212, and the third signal source 513. Therefore, the electrical signal emitted by the R period is the sum of the outputs of the three signal sources 211, 212 and 513.

In the embodiment of FIG. 9A, Table 1 uses the output power of the first signal source 211 and the second signal source 212 when the transmitter 110 is in the floating state. Table 2 shows that the output power of the first signal source 211 or the second signal source 212 is utilized only during the T0 period and the T1 period when the transmitter 110 is in the contact state. Therefore, the transmitter 110 can emit a strong electrical signal when the pen tip is not in contact, and emit a less powerful electrical signal when the pen tip is in contact.

Similarly, Table 3 uses the output power of the first signal source 211 and the second signal source 212 when the transmitter 110 is in the floating state. Table 4 shows that the transmitter 110 is in contact state. The T0 period and the T1 period utilize only the output power of the first signal source 211 or the second signal source 212. Therefore, the transmitter 110 can emit a strong electrical signal when the pen tip is not in contact, and emit a less powerful electrical signal when the pen tip is in contact.

In the embodiment of the ninth to fifth ninth F, the steps and the time period for adding the noise detection are shown in the tenth figure, which is a schematic diagram of the noise propagation according to an embodiment of the invention. In the tenth figure, the electronic system 100 where the touch panel/screen 120 is located will emit noise of f0 frequency, and the f0 frequency is exactly one frequency of the frequency group F0. It is assumed that the frequency group F0 also contains another f3 frequency. When the user holds the electronic system 100, the noise of the f0 frequency will be transmitted to the touch panel/screen 120 through the user's finger. If the step of the noise detection is not performed, the touch panel/screen 120 may mistake the f0 frequency signal transmitted by the finger as the electrical signal sent by the transmitter 110 during the period of the signal frame. Therefore, if the noise of the f0 frequency is detected in advance, the signal source of the f0 frequency can be filtered out during the period of the signal frame.

It is assumed that the transmitter 110 has the function of automatic frequency conversion. When the transmitter 110 itself detects that the touch panel/screen 120 emits noise of the f0 frequency, it automatically switches to another f3 frequency of the same frequency group F0. In the period of the signal frame, the touch processing device 130 detects the f3 frequency from the transmitter 110 and the f0 frequency from the finger, thereby causing confusion. Therefore, as in the embodiment shown in FIG. BB, a step of noise detection is performed in the T1 period or after the signal frame in the event of confusion. Since the transmitter 110 has stopped transmitting the signal of the f3 frequency, the finger and the electronic system 100 continue to emit noise at the f0 frequency. The touch processing device 130 can infer that the signal having the f3 frequency is the signal actually coming from the transmitter 110 among the signals detected in the original signal frame period.

In the above description of the second A, the impedance of the first element 221 is utilized. Change to adjust the ratio of the signal strength of a plurality of frequencies. Please refer to FIG. 11 , which is a schematic structural diagram of a first capacitor 221 according to another embodiment of the present invention. The impedance of the first capacitor 221 is used to adjust the ratio of the signal strengths of the plurality of frequencies. A conventional capacitive element is formed by two sheets of conductive metal plates. Its permittivity C is proportional to the dielectric constant and the area of the metal plate, and inversely proportional to the distance between the metal plates.

One of the main spirits of the above embodiments is to use a mechanical structure to rotate the stroke of the elastic tip segment 230 along the axial direction of the transmitter 110 to be perpendicular to the axial direction of the transmitter 110 or to the axis of the transmitter 110. A stroke in an angular direction. By changing the stroke, changing the permittivity of the first capacitor 221 and its corresponding first impedance Z1, and fixing the permittivity of the second capacitor 222 and its corresponding second impedance Z2, thereby changing the first frequency among the electrical signals. The ratio of the intensity M1 of the signal portion of the (group) to the intensity M2 of the signal portion of the second frequency (group).

In the eleventh figure, there are three metal plates that are not in contact with each other. The first metal plate 1110 and the second metal plate 1120 form a first capacitor 221, and the second metal plate 1120 and the third metal plate 1130 form a second capacitor 222. In one example, the first metal plate 1110 is formed on a flexible circuit board or printed circuit board having an insulating varnish or another insulating plate on its surface. The second metal plate 1120 and the third metal plate 1130 are formed on two layers of the same circuit board or printed circuit board, and the surface thereof has an insulating varnish or another insulating plate. The second metal plate 1120 is coupled to the front nib segment 230 via an additional circuit. The pen tip is fixed to a lifting element 1140 (such as the bevel device described below), and directly or indirectly lifts part or all of the first metal plate 1110 (or an elastic circuit board or a printed circuit board) according to the displacement of the pen tip segment 230, or causes The portion of the first metal plate 1110 (or the flexible circuit board or printed circuit board) is deformed perpendicular to the axial direction of the transmitter 110, and is collectively referred to as a displacement perpendicular to the axial direction of the stylus in the following description.

The first metal plate 1110 is supplied with an electrical signal of a first frequency (group), and the third metal plate 1130 is supplied with an electrical signal of a second frequency (group). Therefore, the second metal plate 1120 induces an electrical signal having a first frequency (group) and a second frequency (group) to be transmitted to the touch panel 120 via the front nib segment 230. When the nib segment 230 is unstressed, the first metal plate 1110 and its associated circuit board do not have a displacement perpendicular to the axial direction of the transmitter 110. However, after the pen tip segment 230 is stressed, due to the bevel device 1140 behind the pen tip segment, the force is converted from a direction parallel to the axis to a direction perpendicular to the axis, causing the circuit board to which the first metal plate 1110 belongs to deform. The displacement, which in turn causes the dielectric constant of the first capacitor 221 to change. Therefore, the permittivity C1 of the first capacitor 221 and the first impedance Z1 also change. After the nib segment 230 is stressed, the second metal plate 1120 and the circuit board to which the third metal plate 1130 belongs are displaced as a whole, so the permittivity C2 and the impedance Z2 of the second capacitor 222 remain unchanged.

Since the circuit board where the first metal plate 1110 is located may be squared upward, the embodiment may include at least one supporting member 1150 to provide a supporting force in a reverse direction, so that after the force of the pen tip segment 230 disappears, the first metal plate 1110 is assisted. The board where it is located returns to its original state. The support force provided by the support element 1150 can be zero before being deformed.

In an example of the embodiment, the permittivity of the first capacitor 221 and the second capacitor 222 can be designed to be the same. In the case where the permittivity is the same, the dielectric constant, distance, and area of the two capacitors may be the same. Of course, the present invention does not limit the capacitance ratios of the two capacitors 221 and 222, as long as the touch processing device 130 knows the corresponding impedance ratio of the two capacitors of the transmitter 110.

In this embodiment, an inexpensive circuit board or printed circuit board is used in place of the more expensive force sensing resistor. And, when the first capacitor 221 and the second capacitor 222 have the same permittivity When the external environment changes, the dielectric constant also changes at the same time, thereby maintaining the proportional preset value. In addition, the transmitter 110 itself does not require an active control element to adjust the ratio of the two impedances Z1 and Z2, and only needs to passively provide an electrical signal, which can save a lot of resources.

Please refer to FIG. 12, which is a reduced representation of the embodiment shown in FIG. 11 omitting the circuit board, the support member 1150, and the second metal plate 1120 and the tip portion 230. Connect the circuit. The description of the embodiment shown in Fig. 12 can be referred to the eleventh figure.

Please refer to FIG. 13 , which is a modification of the embodiment shown in FIG. 12 , wherein the third metal plate 1130 can be moved to the rear of the first metal plate 110 and not electrically connected to the first metal plate 1110 . coupling. After the nib segment 230 is stressed, only the first metal plate 1110 and its associated circuit board are deformed by displacement. In an embodiment, the first metal plate 1110 and the third metal plate 1130 may be formed on the same circuit board.

Please refer to FIG. 14 , which is a modification of the embodiment shown in FIG. 13 , wherein the first metal plate 1110 and the third metal plate 1130 can be respectively divided into two metal plates A and B, and the same is respectively fed. Enter the first frequency (group) and the second frequency (group). After the nib segment 230 is stressed, the first metal plate A 1110A and the first metal plate B 1110B and the circuit board to which they belong are displaced. The third metal plate A 1130A and the third metal plate B 1130B and the circuit board to which they belong do not have displacement deformation. Compared with the embodiment shown in Fig. 13, since the displacement of the two metal plates 1110A and 1110B is changed, the amount of change is larger and more obvious than that of the embodiment shown in Fig. 13.

Please refer to the fifteenth figure, which is a modification of the embodiment shown in FIG. 14, wherein the second metal plate 1120 is also divided into two metal plates of 1120A and 1120B, but the second metal plate A 1120A and the second Metal plate B 1120B is commonly connected to tip portion 230 by circuitry. The first metal plate A 1110A and the second metal plate A 1120A form a first capacitor A 221A, and the second metal plate A 1120A forms a second capacitance A 222A with the third metal plate A 1130A. The first metal plate B 1110B and the second metal plate B 1120B form a first capacitor B 221B, and the second metal plate B 1120B and the third metal plate B 1130B form a second capacitor B 222B. After the nib segment 230 is stressed, the first metal plate A 1110A and the first metal plate B 1110B and the circuit board to which they belong are displaced. The third metal plate A 1130A and the third metal plate B 1130B and the circuit board to which they belong do not have displacement deformation. Compared with the embodiment shown in Fig. 13, since the displacement of the two metal plates is changed, the amount of change is larger and more obvious than that of the embodiment shown in Fig. 13.

Please refer to FIG. 16A, which is a schematic view of an embodiment of the present invention. In the embodiment shown in FIG. 16A, the first metal plate 1110, the second metal plate 1120, and the third metal plate 1130 are included from top to bottom. The first metal plate 1110 and the third metal plate 1130 are fixed, and respectively feed signals of the first frequency (group) and the second frequency (group). The second metal plate 1120 will sense the signals of the first frequency (group) and the second frequency (group) of the upper and lower metal plates, and the output has the mixed first frequency (group) and the second frequency (group). Electrical signal.

A first capacitor 221 is formed between the first metal plate 1110 and the second metal plate 1120 , and a second capacitor 222 is formed between the second metal plate 1120 and the third metal plate 1130 . When the second metal plate 1120 is not deformed, in the same environment, the impedance values of the first capacitor 221 and the second capacitor 222 are fixed, so that the electrical signals are analyzed corresponding to the first frequency (group) and the second The frequencies M1 and M2 of the frequency (group) are calculated based on the two intensity values. When the ratio value is a predetermined value or falls within a predetermined range, it can be known that the second metal plate 1120 is not deformed.

When the second metal plate 1120 is deformed, the impedance values and capacitance values of the first capacitor 221 and the second capacitor 222 are changed. Therefore, a proportional value is calculated according to the two intensity values, and according to the change of the proportional value, the deformation or the force of the second metal plate 1120 can be reversely pushed back. in Thus, the various steps of the embodiment shown in the sixth figure can be applied.

Please refer to FIG. 16B, which is a modification of the embodiment shown in FIG. 16A. The second metal plate 1120 and the third metal plate 1130 are fixed, and respectively feed signals of the first frequency (group) and the second frequency (group). The first metal plate 1110 will sense the signals of the first frequency (group) and the second frequency (group) of the lower second metal plate 1120 and the third metal plate 1130, and the output has a mixed first frequency (group) ) an electrical signal with a second frequency (group).

A first capacitor 221 is formed between the first metal plate 1110 and the second metal plate 1120, and a second capacitor 222 is formed between the first metal plate 1110 and the third metal plate 1130. When the first metal plate 1110 is not deformed, in the same environment, the impedance values of the first capacitor 221 and the second capacitor 222 are fixed, so that the electrical signals are analyzed corresponding to the first frequency (group) and the second The frequencies M1 and M2 of the frequency (group) are calculated based on the two intensity values. When the ratio value is a predetermined value or falls within a predetermined range, it can be known that the first metal plate 1110 is not deformed.

When the first metal plate 1110 is deformed, the impedance values and the permittivity of the first capacitor 221 and the second capacitor 222 are changed. Therefore, a proportional value is calculated according to the two intensity values, and according to the change of the proportional value, the deformation or the force of the first metal plate 1110 can be reversely pushed back. Here, the various steps of the embodiment shown in the sixth figure can be applied. The impedance values described above may vary with temperature and humidity. The impedance values of the first capacitor 221 and the second capacitor 222 of the present invention change simultaneously with temperature and humidity, so that when calculating the ratio, the temperature and humidity may be reduced or avoided. The effect of the proportional value.

Please refer to FIG. 17A and FIG. 17B, which are schematic structural diagrams of the first capacitor and the second capacitor according to the present invention. In the embodiments of FIGS. 16A and B, the first frequency (group) and the second frequency (group) are respectively fed, and the embodiments in FIGS. 17A and B are respectively In this case, only the drive signals of the same frequency need to be fed. In other words, it can be applied to the respective embodiments of the seventh A to the seventh D, and the fed driving signal may be the single signal source 714 of the seventh A picture and the seventh B picture, or may be the seventh C picture. The electrical signal obtained by the signal communication unit 771 is used as a signal source, and may be the first electrode 121 and/or the second electrode on the touch panel 120 when the pen tip segment 230 of the seventh D is in close proximity to the touch panel 120. The signal obtained by 122 is used as a signal source.

The three-layer metal plate of the seventeenth A diagram is identical to the three-layer metal plate structure of the sixteenth A-th diagram, and the above-described drive signal having a certain frequency is fed into the deformable second metal plate 1120. Through the capacitive effect with the second metal plate 1120, the first metal plate 1110 will have an induced first current value I1 output. Similarly, the third metal plate 1130 outputs an induced second current value I2 through the capacitive effect with the second metal plate 1120.

A first capacitor 221 is formed between the first metal plate 1110 and the second metal plate 1120 , and a second capacitor 222 is formed between the second metal plate 1120 and the third metal plate 1130 . When the second metal plate 1120 is not deformed, the impedance values of the first capacitor 221 and the second capacitor 222 are fixed, so the current quantities I1 and I2 are analyzed, and a proportional value is calculated based on the two current values. When the ratio value is a predetermined value or falls within a predetermined range, it can be known that the second metal plate 1120 is not deformed.

When the second metal plate 1120 is deformed, the impedance values and the permittivity of the first capacitor 221 and the second capacitor 222 are changed. Therefore, a proportional value is calculated according to the two current values I1 and I2, and according to the change of the proportional value, the deformation or the force of the second metal plate 1120 can be reversely pushed back. Accordingly, the method embodiment shown in the eighth figure can be applied.

Please refer to FIG. 17B, which is a modification of the embodiment shown in FIG. 17A. The second metal plate 1120 and the third metal plate 1130 are fixed. The above has a certain The frequency drive signal is fed into the deformable first metal plate 1110. The second metal plate 1120 outputs the induced first current value I1 through the capacitive effect with the first metal plate 1110. Similarly, the third metal plate 1130 outputs the induced second current value I2 through the capacitive effect with the first metal plate 1110.

A first capacitor 221 is formed between the first metal plate 1110 and the second metal plate 1120, and a second capacitor 222 is formed between the first metal plate 1110 and the third metal plate 1130. When the first metal plate 1110 is not deformed, the impedance values of the first capacitor 221 and the second capacitor 222 are fixed, so the current quantities I1 and I2 are analyzed, and a proportional value is calculated based on the two current values. When the ratio value is a predetermined value or falls within a predetermined range, it can be known that the first metal plate 1110 is not deformed.

When the first metal plate 1110 is deformed, the impedance values and the permittivity of the first capacitor 221 and the second capacitor 222 are changed. Therefore, a proportional value is calculated according to the two current values I1 and I2, and according to the change of the proportional value, the deformation or the force of the first metal plate 1110 can be reversely pushed back. Accordingly, the method embodiment shown in the eighth figure can be applied.

Please refer to the eighteenth figure, which is a modification of the embodiment shown in the eleventh figure. The embodiment shown in the eleventh figure requires feeding signals of two frequencies. However, in the embodiment shown in the eighteenth embodiment, as in the embodiments of the seventeenth A and seventeenth B, it is only necessary to feed a drive signal of a certain frequency to the second metal plate 1120, or to feed A signal that does not need to know how many frequencies the feed signal has.

A first capacitor 221 is formed between the first metal plate 1110 and the second metal plate 1120 , and a second capacitor 222 is formed between the second metal plate 1120 and the third metal plate 1130 . Since the distance and dielectric constant of the second metal plate 1120 and the third metal plate 1130 do not change, the capacitance value and impedance of the second capacitor 222 are fixed. When the first metal plate 1110 is not deformed, the first capacitor 221 The impedance value with the second capacitor 222 is fixed, so the current quantities I1 and I2 are analyzed, and a proportional value is calculated based on the two current values. When the ratio value is a predetermined value or falls within a predetermined range, it can be known that the first metal plate 1110 is not deformed. However, the permittivity and impedance of the first capacitor 221 may change due to the deformation of the first metal plate. Therefore, when the first metal plate 1110 is deformed by an external force, the first current value I1 may vary. Therefore, the proportional value associated with the current values I1 and I2 also changes, whereby the deformation or stress of the first metal plate 1110 can be reversed. Accordingly, the method embodiment shown in the eighth figure can be applied.

In another embodiment of the present invention, the controller or circuit in the transmitter 110 may be a driving signal feeding a certain frequency to the second metal plate 1120, and calculating corresponding to the first capacitor 221 and the second capacitor 222. The electric current flows I1 and I2, and then the ratio values of the two are used to calculate the sensing value, thereby judging the degree of force applied to the nib. In other words, by the foregoing first impedance Z1 and second impedance Z2, the present invention provides a pressure sensing capacitor (FSC) that can be used to replace a conventional pressure sensing component, such as a pressure sensing resistor FSR. Provide judgment of stress. The pressure sensing capacitor provided by the invention has the characteristics of low cost and being less susceptible to temperature and humidity. In the foregoing figures, the use of a flexible printed circuit board as a force sensing capacitor is disclosed. One of the features of the present invention is to provide other forms of force sensing capacitance.

Please refer to FIG. 19A, which is an exploded view of the center of the force sensing capacitor of the transmitter 110 and its structure. Please note that the proportions in Figures 19A through E have been changed to highlight certain parts. In addition, some fixed components are omitted to simplify the description. In the nineteenth A diagram, the leftmost component is a long pole type pen tip or pen tip section 230, and the pen tip portion may be an electrical conductor. For convenience, the nib segment 230 is referred to as the front end of the transmitter 110 or the active pen. When in contact with the front movable member 1971, the nib segment 230 is coupled to the front movable member 1971. before The end movable member 1971 is coupled to the female fastener in the middle of the rear movable member 1972 by an intermediate male member. In an embodiment, the male and female fasteners can comprise threads. The front end movable element 1971 and the rear end movable element 1972 may be conductors or electrically conductive elements, such as may be metal pieces.

The nineteenth A diagram includes a housing 1980 that can annularly include the front and rear movable members 1971 and 1972 as described above. For the sake of simplicity, FIG. 19A only shows the housing 1980. a part of. The portion of the housing 1980 adjacent the tip portion 230 is retracted into a neck having a smaller diameter, and the neck portion and the portion of the housing having a larger diameter may include a shoulder portion as a bearing portion. In the nineteenth A diagram, at least one elastic member 1978 is sandwiched between the bearing portion and the front end movable member 1971 for respectively applying the housing 1980 and the front movable member 1971 along the long axis of the pen. force. The elastic element 1978 can be a spring, a spring or other type of resilient element. In an embodiment, unlike the nineteenth A diagram, the elastic element 1978 can surround the movable element 1970 and the neck of the housing 1980.

In another embodiment, the resilient member 1978 can bias the housing 1980 and the rear movable member 1972, respectively, along the long axis of the pen. Since the front and rear movable members 1971 and 1972 can be combined into a movable member 1970 by a fastener, the movable member 1970 can be pushed toward the front movable member 1971 or the rear movable member 1972. The nib segment 230, in turn, pushes the nib segment 230 toward the front end.

When the nib section 230 is biased to the right or to the rear in the drawing, the movable element 1970 is pressed against the elastic force of the elastic member 1978 until a certain portion of the movable member 1970 comes into contact with the bearing portion of the housing 1980. Accordingly, the present invention provides a design that allows the movable element 1970 to move along the long axis of the pen within the neck of the housing 1980 for one stroke. Similarly, since the movable element 1970 is against the pen tip segment 230, the pen tip segment 230 can also follow the length of the pen. The axis moves to the same stroke. The length of the stroke can vary depending on the design, for example, it can be 1 mm or 0.5 mm. The invention does not limit the length of the stroke.

At the rear end of the rear movable member 1972, there is an insulating film 1973. At the rear end of the insulating film 1973, a compressible conductor 1974 is further included. In one embodiment, the compressible conductor 1974 can be a conductive rubber or a resilient element of a doped conductor. Since the insulating film 1973 is interposed between the movable element 1970 and the compressible conductor 1974, the movable element 1970, the insulating film 1973, and the compressible conductor 1974 form a capacitor or a force sensing capacitor. The force sensing capacitor provided by the present application may be the first capacitor 221 of the second A to fifth figures. In short, the force sensing capacitors provided by the present application can be applied to the various embodiments described above.

The compressible conductor 1974 is attached to a conductor substrate 1975 which can be attached to the inner peripheral surface of the housing 1980 by means of a fastener or fastener. When the movable member 1970 is moved toward the rear end or to the right, since the position of the conductor base 1975 is immobile, the rear movable member 1972 compresses the compressible conductor 1974, causing the capacitance value of the above force sensing capacitor to change.

Due to the shape limitations of the pen, the remaining circuits and battery modules can be located at the rear end of the conductor substrate 1975. In the nineteenth A diagram, these components can be represented by a printed circuit board 1990. As the first end of the force sensing capacitor, the above movable element 1970 is connected to the printed circuit board 1990 through a movable element wire 1977. As the second end of the force sensing capacitor, the conductor base 1975 is connected to the printed circuit board 1990 by a base wire 1976.

The pedestal lead 1976 can also be another resilient element. In some embodiments, unlike the nineteenth A diagram, the pedestal lead 1976 can surround the conductor pedestal 1975. In another embodiment, the conductor base 1975 is not electrically conductive, and the base conductor 1976 is electrically coupled to the compressible conductor 1974 through the conductor base 1975.

In an embodiment, the insulating film 1973 may be fabricated by immersing the right end plane of the rear movable member 1972 in an insulating liquid. After the insulating liquid is air-dried, an insulating film 1973 is naturally formed on the right end plane of the rear end movable member 1972.

Please refer to the twentieth diagram, which is a schematic cross-sectional view of the contact surface of the compressible conductor 1974 and the insulating film 1973 in the nineteenth Ath. The twenty-fifth diagram contains an embodiment of the contact faces of four compressible conductors 1974 and the insulating film 1973. The embodiment of (a) is the contact surface of the central protrusion, the embodiment of (b) is the contact surface of the single slope, the embodiment of (c) is the central tapered contact surface, and the embodiment of (d) is a plurality of protrusions. Contact surface. The Applicant believes that the invention does not limit the shape of the contact surface.

Although the surface on which the insulating film 1973 is formed on the movable element 1970 is a flat surface in the nineteenth Ath, the present invention is not limited thereto. The surface may be a contact surface as shown in the twentieth diagram, a central protrusion, a single slope, a central cone shape, or a contact surface with a plurality of protrusions. In other words, in some embodiments, the surfaces of both the compressible conductor 1974 and the insulating film 1973 are not planar.

Please refer to FIG. 19B, which is a schematic cross-sectional view after the combination of structures shown in FIG. After combining, the front end movable element 1971 and the rear end movable element 1972 have been combined into a single movable element 1970. The movable element 1970 is coupled to the bearing portion of the housing 1980 by an elastic member 1978. The elastic tension of the elastic member 1978 causes the movable member 1970 to abut the tip end portion 230 toward the front end until the rear end is movable. Element 1972 is placed against the bearing portion of housing 1980. A movable stroke d is left between the movable element 1970 and the housing 1980. At this time, the compressible conductor 1974 is not deformed by compression, assuming the force-sensing capacitor The capacitance value of the device is a first capacitance value.

Please refer to the nineteenth C-th, which is another schematic cross-sectional view after the combination of structures shown in FIG. Compared with the nineteenth B-picture, since the nib section 230 is subjected to the pressure toward the rear end, it moves toward the rear end. Affected by the movement of the nib section 230, the movable element 1970 overcomes the elastic tension of the elastic element 1978 and moves the entire stroke d to the rear end until the front movable element 1971 is pressed against the bearing portion of the housing 1980. At this time, the compressible conductor 1974 is subjected to compression by the compression of the movable element 1970 and the insulating film 1973, and the capacitance value of the force sensing capacitor is a second capacitance value which is different from the first capacitance value described above.

Between the end of the stroke shown in Fig. 19B and Fig. 19C, the movable element 1970 can also have an infinite number of positions, or the compressible conductor 1974 can have an infinite number of compressions, or can be compressed. The area of the contact surface of the conductor 1974 and the insulating film 1973 can be varied in a large number of sizes, and the change in the capacitance value of the force sensing capacitor can be made by changing the position or the degree of pressure or the size of the area.

Please refer to FIG. 19D, which is an exploded perspective view of the center of the force sensing capacitor of the transmitter 110 and its structure according to an embodiment of the invention. It differs from the nineteenth B-picture in that the positions of the compressible conductor 1974 and the insulating film 1973 are interchanged. In any event, when the movable member 1970 moves toward the rear end, the compressible conductor 1974 will be deformed by the compression of the insulating film 1973 and the conductor base 1975. Thereby, the capacitance value of the force sensing capacitor can also be changed.

Please refer to FIG. 19E, which is an exploded perspective view of the center of the force sensing capacitor of the transmitter 110 and its structure according to an embodiment of the invention. The difference between the nineteenth E and the nineteenth B is that the right end of the rear movable member 1972 is no longer an insulating film. 1973, but a compressible dielectric material 1979. For example, insulating rubber, plastic, foam, etc. The conductor connected to the conductor base 1975 is changed to an incompressible conductor, such as a metal block or graphite. When the pressure of the movable member 1970 is applied, the thickness of the compressible insulating material 1979 becomes small, and the distance between the movable member 1970 and the conductor becomes small, so that the capacitance value of the force sensing capacitor changes. From the point of view of production cost, the conductor of the nineteenth E diagram is more expensive than the compressible conductor 1974 of the nineteenth A diagram.

In a variation of the nineteenth embodiment, the contact surface of the conductor with the compressible insulating material 1979 can be formed into contact faces of various shapes as shown in Fig. 20. In another variation, the contact surface of the compressible insulating material 1979 with the conductor can be formed into contact surfaces of various shapes as shown in the twentieth diagram.

Similar to the nineteenth D-drawing, the position of the compressible insulating material 1979 and the conductor can also be interchanged. The compressible insulating material 1979 can be attached to the conductor base 1975, and the conductor can be attached to the rear end of the movable element 1970. When the movable element 1970 moves toward the rear end, the conductor causes the compressible insulating material 1979 to deform, causing a change in the capacitance value of the force sensing capacitor.

Please refer to the twenty-first figure, which is a schematic diagram of a pressure sensor according to an embodiment of the invention. As shown, the pressure sensor 2110 has two input terminals a, b and an output terminal c. The two input terminals a, b and the output terminal c are electrically connected to a control unit 2120. The control unit 2120 inputs the first frequency (group) F1 and the second frequency (group) F2 to the pressure sensor 2110 via the input terminals a and b, respectively, and receives the pressure sensor through the output terminal c. 2110 output signal. The control unit 2120 can implement the method illustrated in the sixth figure.

When the external pressure driving capacitor C1 generates a change in the capacitance value, the control unit 2120 can also analyze the pressure change corresponding to the change of the capacitance value, thereby the pressure sensing of the embodiment. The device 2110 can be widely used in various pressure measuring devices, such as load sensors. In an application, the pressure sensor 2110 can also be used in another type of stylus. After the received pressure change of the stylus tip is resolved by the control unit 2120, the signal transmission of a predetermined frequency f0 is driven via the control unit 2120. Unit that transmits pressure changes to the touch panel.

The pre-conditioner 110 can transmit the electrical signal for a period of time after receiving the beacon signal sent by the touch panel 120, so that the touch processing device 130 can detect the transmitter 110 and its sensor. status. When the bearer signal is not received for the first time, the transmitter 110 may enter the power saving mode, and detect whether there is a beacon signal after a detection period, until the beacon signal is received, and then continuously detect The beacon signal, wherein the detection period is greater than the transmission period of the beacon signal.

In addition, when the beacon signal is not received for a second period of time, the transmitter 110 may enter a sleep mode, turning off most of the power of the circuit or controller of the transmitter 110 until it is woken up. In an embodiment of the invention, in the sleep mode, the transmitter 110 turns off the associated circuitry that receives the beacon signal and transmits the electrical signal. In the wake-up of the sleep mode described above, a button or a switch may be set in the transmitter 110, and the user manually triggers a button or a switch to wake up. In another embodiment of the present invention, the embodiment of the twenty-third A and B diagrams, or the embodiment of the twenty-fourth A and B diagrams may be used to wake up. After the nib segment 230 contacts the object, the potential of the first port can be increased from low to high, thereby allowing the transmitter 110 to transmit an electrical signal.

In the present application, one of the functions of the ring electrode 550 can be used to receive the above-described beacon signal without being limited to receiving the beacon signal only through the pen tip segment 230. Since the area and volume of the ring-shaped electrode 550 is larger than the tip end of the pen tip segment 230, the beacon signal can be received farther from the touch panel 120. Or let the touch panel 120 send a weak signal strength. The beacon signal is used to reduce the power consumption of the touch panel 120. If the beacon signal is not received for a period of time, the active pen can enter a deeper level of sleep to save more power consumption. In a deeper sleep state, the user can return the sender 110 to a normal operating state by tapping the tip segment 230. The transmitter 110 can be woken up using the embodiments of Figures 23A and B, or the embodiments of the twenty-fourth A and B diagrams. After the nib segment 230 contacts the object, the potential of the first port can be increased from low to high, thereby allowing the transmitter 110 to transmit an electrical signal.

When a plurality of transmitters 110 are to be operated on a touch panel 120, the touch panel 120 can emit different beacon signals to cause the corresponding transmitter 110 to emit an active signal for a period of time after receiving the beacon signal. . The above-mentioned transmitter 110 can also adjust the frequency or modulation mode of the first signal source 211, the second signal source 212, and the third signal source 513 according to different beacon signals, so that the touch processing device 130 can detect It is detected which signal of the transmitter 110 is. Similarly, the different beacon signals described above may be of different frequencies or modulations.

Please refer to the twenty-second figure, which is a schematic diagram of a pressure sensor according to an embodiment of the invention. In this embodiment, the control unit 2220 can also feed a driving signal of a certain frequency to an input terminal c of the pressure sensor 2210, and receive the output from the output terminal a, b corresponding to the first capacitor C1 and the second The current quantities I1 and I2 of the capacitor C2 are supplied to the control unit 2220, and the sensed value is calculated by the control unit 20 using the ratio values of the two, thereby determining the pressure change. The control unit 2220 can implement the method illustrated in the eighth figure. In an application, the drive signal of the predetermined frequency may also be input to an input c of the pressure sensor 2220 by the outside world.

Please refer to the twenty-third A and B diagrams, which are schematic structural diagrams of a simple switch according to an embodiment of the present invention. In the embodiment shown in Fig. 23A, there are three layers in total. Circuit board. As with the previous illustration, there is a mechanical bevel on the right. Before the mechanical bevel is pushed to the left, the circuit on the upper circuit board is connected to the circuit of the lower circuit board through the intermediate circuit board conductive line. A first contact p1 of the upper circuit board is respectively connected to a voltage source (such as Vdd) and a first connection port (GPIO1). When no displacement perpendicular to the direction of the stylus axis occurs, the first contact p1 It is in electrical contact with a second contact p2 of the intermediate circuit board. The intermediate circuit board additionally has a third contact p3, and the second contact p2 is electrically connected to the third contact p3. A fourth contact p4 of the lower circuit board is connected to a ground potential (such as ground), and may also be connected to a second connection port (GPIO2). In addition, the fourth contact p4 is in electrical contact with the third contact p3. A voltage is connected between the voltage source and the first port GPIO1, and the circuit of the upper circuit board and the intermediate circuit board are short-circuited (the first contact p1 is in electrical contact with the second contact p2), and the intermediate circuit board and the lower circuit When the circuit of the board is short-circuited (the third contact p3 is in electrical contact with the fourth contact p4), the potential of the first connection 埠 GPIO1 is a low potential or a ground potential.

Referring to Figure 23B, after receiving the pressure, the mechanical ramp will push to the left, causing the contact between the upper circuit board and the lower circuit board to be deformed. After the deformation, the circuit of the upper circuit board and the intermediate circuit board is open (the first contact p1 has no electrical contact with the second contact p2), or the circuit of the intermediate circuit board and the lower circuit board is open (the third contact) P3 has no electrical contact with the fourth contact p4), and the potential of the first port GPIO1 is the potential of the voltage source Vdd.

When the potential of the first port GPIO1 goes from low to high, the transmitter 110 in the sleep mode can be awakened. As mentioned earlier, the upper circuit board and the lower circuit board may be provided with supporting members so that after the power of the mechanical bevel disappears, the upper circuit board and the lower circuit board are restored to the original state, and the potential of the first connection port is turned high. low. The aforementioned first port and second port may be pins of a processor within the transmitter 110.

Please refer to the twenty-fourth A and B diagrams, which are schematic structural diagrams of a simple switch according to an embodiment of the present invention. In the embodiment of the twenty-third A and eighth embodiments, there are two fractures, and any one of the fractures exhibits an open circuit, and the potential of the first connection port can be changed from low to high. The embodiment of the twenty-fourth A and B diagrams has only one break and the circuit is connected from the intermediate circuit board to the ground potential. When the circuit of the upper circuit board and the intermediate circuit board is short-circuited, the potential of the first connection 埠 GPIO1 is a low potential or a ground potential. When the circuits of the upper circuit board and the intermediate circuit board are open, the potential of the first connection 埠 GPIO1 is the potential of the voltage source. In the twenty-fourth A and B diagrams, the second junction p2 is electrically connected to the second port GPIO2.

Referring to the twenty-fifth diagram, the present invention provides a schematic diagram for inferring the position of the nib. There are two transmitters 110 on the drawing, both of which include a ring electrode 550 and a tip segment 230. The transmitter 110 on the left and the touch panel 120 are in a vertical state with an angle close to or equal to 90 degrees, and the angle between the right transmitter 110 and the touch panel 120 is less than 90 degrees. The surface transparent layer of the touch panel 120 has a thickness. Generally, the surface transparent layer is typically a tempered glass and the display layer is positioned below the transparent layer.

Since the transmitter 110 emits an electrical signal from the ring electrode 550 and/or the pen tip segment 230 during the R period, the touch processing device 130 can calculate the center of gravity position R_cg of the signal, corresponding to the annular electrode 550 and the tip segment 230 projected thereon. The center position of the touch panel 120. Next, during the T0 and T1 periods, the transmitter 110 transmits an electrical signal only through the tip segment 230. The touch processing device 130 can calculate the center of gravity position Tip_cg of the signal, corresponding to the pen tip segment 230 projected on the center position of the touch panel 120.

As the transmitter 110 on the left side of the twenty-fifth figure, when it is perpendicular to the touch panel 120, R_cg is equal to or very close to Tip_cg. Therefore, it can be inferred that the tip of the pen touches the touch panel 120. The point of the surface transparent layer, Tip_surface is equal to the above R_cg and Tip_cg. It can also be inferred that the tip of the pen is projected on the display layer of the touch panel 120, and the Tip_display is equal to the R_cg, Tip_cg, and Tip_surface described above.

As the transmitter 110 on the right side of the twenty-fifth figure, R_cg is not equal to Tip_cg because it has an inclination angle with the touch panel 120. It is conceivable that the further the distance between the two, the greater the inclination. According to different transmitter 110 designs, the touch processing device 130 can look up or calculate the tilt angle according to the two center of gravity positions R_cg and Tip_cg, or calculate that the tip end of the tip portion 230 contacts the surface of the touch panel 120. The transparent layer and the display layer point Tip_surface and Tip_display.

Please refer to the twenty-sixth figure, which is a schematic diagram of calculating a tilt angle according to an embodiment of the present invention. This embodiment is applicable to the transmitter 110 shown in the fifth figure, which has an annular electrode 550. The embodiment is applicable to the signal modulation mode shown in the ninth E and the ninth F. The touch processing device 130 shown in the first embodiment performs the method shown in this embodiment, and may also refer to the twenty-fifth. An embodiment of the figure.

In step 2610, a first center position R_cg of the ring electrode 550 and/or the pen tip segment 230 on the touch panel 120 is calculated. In step 2620, a second center position Tip_cg of the nib segment 230 on the touch panel 120 is calculated. The present invention does not limit the order in which the two steps 2610 and 2620 are performed. Next, in an optional step 2630, a tilt angle is calculated based on the first center position R_cg and the second center position Tip_cg. In an optional step 2640, the surface position Tip_surface of the nib segment 230 on the surface layer of the touch panel 120 is calculated according to the first central position R_cg and the second central position Tip_cg. In an optional step 2650, the pen tip segment 230 is calculated on the touch panel according to the first center position R_cg and the second center position Tip_cg. 120 display layer display position Tip_display. The invention is not limited to having to perform steps 2630 through 2650, but at least one of them needs to be performed. The present invention also does not limit the order in which steps 2630 through 2650 are performed.

Please refer to the twenty-seventh figure, which is an embodiment in which the display interface reflects the aforementioned tilt angle and/or pressure stroke. The twenty-seventh diagram contains five sets of horizontal embodiments (a) to (e), each set containing three inclinations, the leftmost straight row indicating that the active pen has no tilt angle, and the right example The second tilt angle is greater than the first tilt angle of the intermediate example, and the direction of the tilt angle is toward the right. The so-called strokes here are usually displayed in the drawing software and displayed in the color range of the screen.

It should be noted that, in this embodiment, it is not necessary to use the ring electrodes of the twenty-fifth and twenty-sixth figures to calculate the inclination angle and the tip end of the tip portion 230 contacting the surface transparent layer and the display layer of the touch panel 120. Tap Tip_surface and Tip_display. In an embodiment, other sensors may be mounted on the pen to measure the tilt angle. For example, an inertial measurement unit (IMU), a gyroscope, an accelerometer, etc., which are made of MEMS, measure the tilt angle and transmit it through various wired or wireless transmission methods. The various data derived from the tilt angle and/or the tilt angle are transmitted to the computer system to which the touch panel belongs, so that the computer system implements the various embodiments shown in FIG. The above wired or wireless transmission methods may be industry standards or custom standards, such as Bluetooth wireless communication protocol or Wireless USB.

It is assumed herein that in the twenty-seventh diagram, the active pens of the respective embodiments all contact the touch panel with the same pressure. In an embodiment, the intersection of each horizontal line and the straight line represents a point Tip_surface at which the pen tip segment actually contacts the surface transparent layer of the touch panel. In other embodiments, the intersection of each horizontal line and the straight line represents the center of gravity position Tip_cg of the nib signal. Of course, in other embodiments, the point where the pen tip is projected on the display layer of the touch panel may also be indicated. Tip_display. For convenience, it may be collectively referred to as a nib representative point Tip, which may be the above-mentioned Tip_display, Tip_surface or Tip_cg.

In the embodiment (a), when the inclination angle is increased, the shape of the stroke is changed from a circular shape to an elliptical shape. In other words, the distance between the elliptical bifocal points is related to the tilt angle. The larger the angle of inclination, the greater the distance between the elliptical bifocal points. The center point of the ellipse is the above-mentioned nib representative point Tip.

The embodiment (b) is different from the embodiment (a) in that the intersection point of the center extension line of the elliptical bifocal point and the elliptical line is the above-mentioned nib representative point Tip. The embodiment (c) is different from the embodiment (a) in that one of the focal points of the elliptical bifocal point is the above-mentioned nib representative point Tip. The embodiments (d) and (e) differ from the embodiment (a) in that the shape of the stroke is changed from an elliptical shape to a teardrop type. The teardrop tip of the embodiment (d) is the tip point Tip described above. The teardrop type tip of the embodiment (e) is directed to somewhere at the end, which is the above-mentioned nib representative point Tip.

Although in the twenty-seventh embodiment, the two shapes are different from the points indicated, the present application does not limit the shape of the stroke and the kind of points it represents. In addition, in one embodiment, the pressure of the nib can control the size of the shape described above, such as the magnitude of the pressure associated with the radius of the circle or the distance from the bifocal point of the ellipse. In summary, the human-machine interface can change the displayed content according to the pen tip pressure value and/or the tilt angle of the active pen.

In addition to changing the shape of the stroke, the above-described nib pressure value and/or tilt angle value may also represent different commands. For example, in the 3D design software, the color temperature of the light source, or the intensity of the light source, or the illumination range of the light source can be adjusted by the tilt angle. Or, after the nib selects an object, the direction of the object can be adjusted by the direction of the tilt angle, and the rotation direction of the object can be adjusted according to the angle of the tilt angle.

It should be noted that the present invention does not limit the relationship between the tilt angle and its associated value as linear. In some embodiments, the relationship of the tilt angle to its associated value may be non-linear, may be looked up using a look-up table, or may be a quadratic function.

Please refer to the twenty-eighth figure, which is another embodiment of the brush stroke that reflects the aforementioned inclination and/or pressure at the display interface. The twenty-eighth figure contains two embodiments (a) and (b), each of which contains two left and right strokes. The left hand stroke has a tilt angle of zero and contains five small to large circles C1 to C5, the size of which depends on the pressure value of the pen tip. The stroke on the right has a fixed inclination angle, including five small to large ovals E1 to E5, and the size of the ellipse is also determined according to the pressure value of the nib and is the same as the pressure value of C1 to C5. In addition, according to the direction of the inclination angle, the axial directions of the elliptical shapes E1 to E5 are inclined by 30 degrees, and the inclination direction of the inclination angle is different from the stroke direction of the stroke center. . In this picture, the two are clipped at a 15 degree angle.

The (a) embodiment of the twenty-eighth diagram corresponds to the (a) embodiment of the twenty-seventh diagram, meaning that the center point of the ellipse corresponds to the above-described nib representative point Tip. Similarly, the embodiment (b) of the twenty-eighth diagram corresponds to the embodiment (b) of the twenty-seventh diagram, and the intersection point of the center extension line of the elliptical bifocal point and the elliptical line is the above-mentioned nib representative point. Tip. It can be seen from the two embodiments of the twenty-eighth figure that under the same pressure change, due to the difference in the inclination angle, the overall shape of the brush stroke is different. Thereby, the pressure value and the tilt angle can be used to express the strokes of some soft elastic tip, such as a brush pen or a quill pen.

One of the features of the present invention is to provide a transmitter. The transmitter includes: a first component for receiving a signal having a first frequency group, wherein a first impedance value of the first component changes according to a force; and a second component is configured to receive Has a second frequency group a set of signals, the second component having a second impedance value; and a sharp segment for receiving an input of the first component and the second component and emitting an electrical signal, wherein the nib segment is configured to receive the force.

In an embodiment, the second impedance value does not vary according to the force. In another embodiment, the second impedance value also varies according to the force.

In an embodiment, the transmitter may further include a third component in series with the third switch, wherein the first component is in parallel with the third switch and the third component. The transmitter may further include a fourth component in series with the fourth switch, wherein the first component is in parallel with the fourth switch and the fourth component.

In another embodiment, the transmitter may further include a third component in series with the third switch, wherein the second component is in parallel with the third switch and the third component. The transmitter may further include a fourth switch in series with the fourth switch, wherein the second component is in parallel with the fourth switch and the fourth component.

In an embodiment, the first frequency group includes one or more first frequencies, and the second frequency group includes one or more second frequencies, the first frequency being different from the second frequency.

In an embodiment, the first impedance value is equal to the second impedance value if the force is zero. In one embodiment, the pen tip segment does not touch any object when the force is zero.

In an embodiment, a ratio of a first signal strength M1 of the first frequency group to a second signal strength M2 of the second frequency group in the electrical signal is related to the force. Wherein, the ratio value may be one of the following: M1/M2, M2/M1, M1/(M1+M2), M2/(M1+M2), (M1-M2)/(M1+M2), or (M2-M1)/(M1+M2).

In an embodiment, the force is zero when the ratio value is equal to or falls within a first range of values. When the ratio value is equal to or falls within a second range value, the third switch is a closed circuit, and the first component is in parallel with the third component. When the ratio value is equal to or falls within a third range value, the fourth switch is closed, and the first component and the fourth component are connected in parallel. When the ratio value is equal to or falls within a fourth range value, the third switch and the fourth switch are closed, and the first component is connected in parallel with the third component and the fourth switch. In another embodiment, when the ratio value is equal to or falls within a fifth range value, the third switch is a closed circuit, and the second element is in parallel with the third element. When the ratio value is equal to or falls within a sixth range value, the fourth switch is a closed circuit, and the second component is in parallel with the fourth component. When the ratio value is equal to or falls within a seventh range value, the third switch and the fourth switch are closed, and the second element is connected in parallel with the third element and the fourth element.

In one embodiment, the first component is a force sensing capacitor and the second component is a capacitor.

In an embodiment, the transmitter may further include a ring-shaped electrode surrounding the pen tip segment, and the ring-shaped electrode is not electrically coupled to the pen tip segment. In an embodiment, the annular electrode described above may comprise one or more separate electrodes.

One of the features of the present invention is to provide a signaling method for controlling a transmitter, the transmitter comprising a first component, a second component, and a tip segment, wherein the pen tip segment is configured to receive the first component And the inputting of the second component, the sending method includes: causing a first impedance value of the first component to change according to a force received by the pen tip segment; providing a signal of the first frequency group to the first a component; providing a signal of a second frequency group to the second component; and causing the pen tip segment to emit an electrical signal.

One of the features of the present invention is to provide a method for determining a force received by a sender, comprising: receiving an electrical signal sent by the transmitter; and calculating a first frequency group of the electrical signal. a first signal strength M1 of the group; calculating a second signal strength M2 of a second frequency group of the electrical signal; and calculating the ratio according to the ratio of the first signal strength M1 to the second signal strength M2 Force.

In an embodiment, the step of calculating the force may include one of the following: a table lookup method, a linear interpolation method, or a quadratic curve method.

In an embodiment, further comprising determining a state of the third switch according to the proportional value. In another embodiment, the method further includes determining a state of the fourth switch according to the proportional value.

One of the features of the present invention is to provide a touch processing device for determining a force received by a transmitter, comprising: an interface for connecting to a plurality of first electrodes and a plurality of touch panels a second electrode, wherein the plurality of first electrodes and the plurality of second electrodes form a plurality of sensing points; at least one demodulator is configured to calculate one of the plurality of sensing points received An electrical signal, a first signal strength M1 of a first frequency group and a second signal strength M2 of a second frequency group; and a calculating unit configured to use the first signal strength M1 and the second A proportional value of the signal strength M2 is calculated.

In an embodiment, the calculating unit further determines the state of the third switch according to the proportional value. In another embodiment, the calculating unit further determines the state of the fourth switch according to the proportional value.

One of the features of the present invention is to provide a touch control system for determining a force received by a sender, comprising: a sender, a touch panel, and a touch processing device, wherein the sending The device further includes a first component for receiving a signal having a first frequency group, The first impedance value of the first component is changed according to a force; a second component is configured to receive a signal having a second frequency group, wherein the second component has a second impedance value; and a pen tip segment for receiving an input of the first component and the second component, and emitting an electrical signal, wherein the pen tip segment is configured to receive the force, the touch panel includes a plurality of first electrodes and a plurality of second An electrode, wherein the plurality of first electrodes and the plurality of second electrodes form a plurality of sensing points, the touch processing device further includes: an interface for connecting to the plurality of first electrodes on the touch panel The plurality of second electrodes, the at least one demodulator, is configured to calculate a first signal strength M1 and a first frequency group of an electrical signal received by one of the plurality of sensing points a second signal strength M2 of the second frequency group; and a calculating unit configured to calculate the force according to a ratio of the first signal strength M1 to the second signal strength M2.

One of the features of the present invention is to provide a transmitter comprising: a first component for receiving a signal source, wherein a first impedance value of the first component changes according to a force; a second component For receiving the signal source, wherein the second component has a second impedance value; a sharp segment for receiving the force; and a control unit for separately calculating the first component and the second component Returning a first current value I1 and a second current value I2, and calculating the force according to a ratio of the first current value I1 to a second current value I2; and a communication unit for using the The force value is transmitted.

In an embodiment, the second impedance value does not vary according to the force. In another embodiment, the second impedance value also varies according to the force.

In an embodiment, the communication unit further includes a wireless communication unit for transmitting the force value. In another embodiment, the communication unit further includes a wired communication unit for transmitting the force value.

In an embodiment, the signal source is the wired communication unit. In an embodiment, the signal source is a signal received by the nib segment.

In an embodiment, the ratio of the first current value I1 to the second current value I2 is related to the force. Wherein, the ratio value may be one of the following: I1/I2, I2/I1, I1/(I1+I2), I2/(I1+I2), (I1-I2)/(I1+I2), or ( I2-I1) / (I1 + I2).

In an embodiment, the first impedance value is equal to the second impedance value if the force is zero.

In an embodiment, the transmitter may further include a third component in series with the third switch, wherein the first component is in parallel with the third switch and the third component. The transmitter may further include a fourth component in series with the fourth switch, wherein the first component is in parallel with the fourth switch and the fourth component. In an embodiment, the force is zero when the ratio value is equal to or falls within a first range of values. When the ratio value is equal to or falls within a second range value, the third switch is a closed circuit, and the first component is in parallel with the third component. When the ratio value is equal to or falls within a third range value, the fourth switch is closed, and the first component and the fourth component are connected in parallel. When the ratio value is equal to or falls within a fourth range value, the third switch and the fourth switch are closed, and the first component is connected in parallel with the third component and the fourth switch.

In another embodiment, the transmitter may further include a third component in series with the third switch, wherein the second component is in parallel with the third switch and the third component. The transmitter may further include a fourth switch in series with the fourth switch, wherein the second component is in parallel with the fourth switch and the fourth component. When the ratio value is equal to or falls within a fifth range value, the third switch is a closed circuit, and the second element is in parallel with the third element. When the ratio value is equal to or falls within a sixth range value, the fourth switch is a closed circuit, and the second The component is in parallel with the fourth component. When the ratio value is equal to or falls within a seventh range value, the third switch and the fourth switch are closed, and the second element is connected in parallel with the third element and the fourth switch.

In an embodiment, the control unit further determines the state of the third switch according to the proportional value. In another embodiment, the control unit further determines the state of the fourth switch according to the proportional value.

In an embodiment, the communication unit is further configured to transmit the state of the third switch. In another embodiment, the communication unit is further configured to transmit the state of the fourth switch.

One of the features of the present invention is to provide a method for controlling the sending of a sender, the transmitter comprising a first component, a second component, and a sharp segment, the signaling method comprising: causing the first component a first impedance value varies according to a force received by the pen tip segment; providing a signal source to the first component and the second component; respectively calculating a first of the first component and the second component The first current value I1 and a second current value I2 are calculated according to a ratio of the first current value I1 to a second current value I2; and the force value is transmitted.

One of the features of the present invention is to provide a touch control system for determining a force received by a sender, comprising: a sender; and a host, wherein the transmitter further comprises: a first component For receiving a signal source, wherein a first impedance value of the first component changes according to a force; a second component is configured to receive the signal source, wherein the second component has a second impedance value; a first segment for receiving the force; a control unit for calculating a first current value I1 and a second current value I2 returned by the first component and the second component, and according to the first Calculating the force by a ratio of a current value I1 to a second current value I2; and a communication unit for transmitting the force value to the host, the host further comprising a host communication unit Receive the force value.

In one embodiment, the touch control system further includes a touch panel and a touch processing device, wherein the touch processing device is configured to connect the touch panel for detecting the transmitter and the touch panel. a relative position and transfer the relative position to the host.

In an embodiment, the control unit further determines the state of the third switch according to the proportional value. In another embodiment, the control unit further determines the state of the fourth switch according to the proportional value. In an embodiment, the communication unit is configured to transmit the state of the third switch. In another embodiment, the communication unit is further configured to transmit the state of the fourth switch. In an embodiment, the host communication unit is configured to receive a state of the third switch. In another embodiment, the host communication unit is configured to receive a state of the fourth switch.

One of the features of the present invention is to provide a force sensor comprising: a first input for receiving a signal having a first frequency group; and a second input for receiving a second frequency a signal of the group; and an output for transmitting an electrical signal, wherein a first signal strength M1 of the first frequency group and a second signal strength M2 of the second frequency group of the electrical signal The proportional value is related to a force.

In an embodiment, the ratio value may be one of the following: M1/M2, M2/M1, M1/(M1+M2), M2/(M1+M2), (M1-M2)/(M1+M2 ), or (M2-M1) / (M1 + M2).

In an embodiment, the force sensor further comprises a third switch. In an embodiment, the force is zero when the ratio value is equal to or falls within a first range of values. When the ratio value is equal to or falls within a second range value, the third switch is closed.

In another embodiment, the force sensor further includes a fourth switch. When the ratio When the value is equal to or falls within a third range value, the fourth switch is closed. When the ratio value is equal to or falls within a fourth range value, the third switch and the fourth switch are closed.

One of the features of the present invention is to provide a force sensor comprising: an input terminal for receiving a signal source; a first output terminal for outputting a signal having a first current value I1; The second output terminal is configured to output a signal having a second current value I2, wherein a ratio of the first current value I1 to the second current value I2 is related to a force.

In an embodiment, the ratio value may be one of the following: I1/I2, I2/I1, I1/(I1+I2), I2/(I1+I2), (I1-I2)/(I1+I2) ), or (I2-I1) / (I1 + I2).

In an embodiment, the force sensor further comprises a third switch. In an embodiment, the force is zero when the ratio value is equal to or falls within a first range of values. When the ratio value is equal to or falls within a second range value, the third switch is closed.

In another embodiment, the force sensor further includes a fourth switch. When the ratio value is equal to or falls within a third range value, the fourth switch is closed. When the ratio value is equal to or falls within a fourth range value, the third switch and the fourth switch are closed.

One of the features of the present invention is to provide a force sensor comprising: a first circuit board including a first metal plate for receiving a signal of a first frequency group; a second circuit board; The first circuit board is parallel and includes a second metal plate and a third metal plate that are not in contact with each other, the third metal plate is for receiving a signal of a second frequency group, and the second metal plate is for outputting an electric a signal, wherein the second metal plate is located between the first metal plate and the third metal plate; and a ramp mechanism for bending the first circuit board above the first circuit board.

One of the features of the present invention is to provide a force sensor comprising: a first circuit board including a first metal plate for outputting a signal having a first current value; and a second a circuit board parallel to the first circuit board, including a second metal plate and a third metal plate not contacting each other, the third metal plate for outputting a signal having a second current value, the second metal plate For inputting a signal source, wherein the second metal plate is located between the first metal plate and the third metal plate; and a ramp mechanism for bending the first circuit board above the first circuit board .

In an embodiment, the portion of the first metal plate is located where the first circuit board is bent.

In an embodiment, the force sensor further includes a support member for supporting the first circuit board.

In an embodiment, the first metal plate, the second metal plate, and the third metal plate are parallel to each other. In another embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate forms a second capacitance with the third metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor are the same when the first circuit board is not bent.

In an embodiment, the first circuit board and the second circuit board are both printed circuit boards.

One of the features of the present invention is to provide a force sensor, comprising: a first circuit board, comprising a first metal plate and a third metal plate not contacting each other, respectively for receiving a first frequency group And a signal of a second frequency group; a second circuit board parallel to the first circuit board, including a second metal plate for outputting an electrical signal; and a ramp mechanism for the The first circuit board is bent over a circuit board.

One of the features of the present invention is to provide a force sensor comprising: a first circuit board comprising a first metal plate and a third metal plate not in contact with each other, respectively for outputting a first current value And a second current value signal; a second circuit board parallel to the first circuit board, including a second metal plate for inputting a signal source; and a ramp mechanism for the first circuit board The first circuit board is bent over.

In an embodiment, the force sensor further includes a support member for supporting the first circuit board.

In an embodiment, the first metal plate and the second metal plate are parallel to each other, and the second metal plate and the third metal plate are parallel to each other. In another embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate forms a second capacitance with the third metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor are the same when the first circuit board is not bent.

In an embodiment, the first circuit board and the second circuit board are both printed circuit boards.

One of the features of the present invention is to provide a force sensor comprising: a first circuit board including a first metal plate and a third metal plate that are not in contact with each other, respectively for receiving a first frequency group And a signal of a second frequency group; a second circuit board parallel to the first circuit board, including a second metal plate for outputting an electrical signal; a third circuit board, and the second The circuit board is parallel and includes a fourth metal plate and a fifth metal plate not contacting each other, respectively for receiving signals of the first frequency group and signals of the second frequency group; and a beveling machine The first circuit board is bent over the first circuit board, and the third circuit board is bent below the third circuit board.

In an embodiment, the force sensor further includes a first support member for supporting the first circuit board. In another embodiment, the force sensor further includes a second support member for supporting the third circuit board.

In an embodiment, the first metal plate and the second metal plate are parallel to each other, the second metal plate and the third metal plate are parallel to each other, and the fourth metal plate and the second metal plate are parallel to each other. The two metal plates and the fifth metal plate are parallel to each other. In another embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate, and the distance between the fourth metal plate and the second metal plate is equal to the distance The distance between the second metal plate and the fifth metal plate.

In an embodiment, the first metal plate is located above the fourth metal plate. In another embodiment, the third metal plate is located above the fifth metal plate.

In an embodiment, the area of the first metal plate is equal to the area of the fourth metal plate. In another embodiment, the area of the third metal plate is equal to the area of the fifth metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate and the third metal plate form a second capacitor, the fourth metal plate and the second metal The plate forms a third capacitor, and the second metal plate forms a fourth capacitance with the fifth metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor are the same when the first circuit board is not bent. In another embodiment, the impedance of the third capacitor and the fourth capacitor are the same when the third circuit board is not bent. In a further embodiment, the impedance of the first capacitor and the third capacitor are the same, and the impedance of the second capacitor is opposite to the impedance of the fourth capacitor. with.

In an embodiment, the first circuit board, the second circuit board, and the third circuit board are both printed circuit boards.

One of the features of the present invention is to provide a force sensor comprising: a first circuit board including a first metal plate for receiving a signal of a first frequency group; a second circuit board; The first circuit board is parallel, and includes a second metal plate, a third metal plate, a fourth metal plate, and a fifth metal plate, which are not in contact with each other and are sequentially arranged in parallel, and the third metal plate and the fourth metal plate The metal plate is configured to receive a signal of a second frequency group, the second metal plate and the fifth metal plate are electrically coupled to each other, and are used for outputting an electrical signal; and a third circuit board includes a sixth metal plate a signal for receiving the first frequency group, wherein the second circuit board is sandwiched between the first circuit board and the third circuit board; and a ramp mechanism for being above the first circuit board The first circuit board is bent, and the third circuit board is bent below the third circuit board.

In an embodiment, the force sensor further includes a first support member for supporting the first circuit board. In another embodiment, the force sensor further includes a second support member for supporting the third circuit board.

In an embodiment, the first metal plate and the second metal plate are parallel to each other, the second metal plate and the third metal plate are parallel to each other, and the fourth metal plate and the fifth metal plate are parallel to each other, the first The five metal plates and the sixth metal plate are parallel to each other. In another embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate, and the distance between the fourth metal plate and the fifth metal plate is equal to the distance The distance between the fifth metal plate and the sixth metal plate.

In an embodiment, the first metal plate is located above the sixth metal plate.

In an embodiment, the area of the first metal plate is equal to the area of the sixth metal plate. In another embodiment, the area of the second metal plate is equal to the area of the fifth metal plate. In a further embodiment, the area of the third metal plate is equal to the area of the fourth metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate and the third metal plate form a second capacitor, the fourth metal plate and the fifth metal The plate forms a third capacitor, and the fifth metal plate forms a fourth capacitance with the sixth metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor are the same when the first circuit board is not bent. In another embodiment, the impedance of the third capacitor and the fourth capacitor are the same when the third circuit board is not bent. In a further embodiment, the impedance of the first capacitor and the fourth capacitor are the same, and the impedance of the second capacitor is the same as the impedance of the third capacitor.

In an embodiment, the first circuit board, the second circuit board, and the third circuit board are both printed circuit boards.

One of the features of the present invention is to provide a force sensor comprising: a first metal plate, a second metal plate, and a third metal plate that are not in contact with each other and are sequentially arranged in parallel, wherein the first metal The board is configured to receive a signal of a first frequency group, the third metal plate is configured to receive a signal of a second frequency group, and the second metal plate is configured to output an electrical signal, wherein one end of the second metal plate Can be forced to bend.

One of the features of the present invention is to provide a force sensor comprising: a first metal plate, a second metal plate, and a third metal plate that are not in contact with each other and are sequentially arranged in parallel, wherein the first metal The board is for outputting a signal having a first current value, the third metal plate is for outputting a signal having a second current value, and the second metal plate is for inputting a signal source, wherein the One end of the two metal plates can be bent by force.

In an embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate forms a second capacitance with the third metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor are the same when the second metal plate is not bent.

One of the features of the present invention is to provide a force sensor comprising: a first metal plate, a second metal plate, and a third metal plate that are not in contact with each other and are sequentially arranged in parallel, wherein the first metal The board is configured to output an electrical signal, the second metal plate is configured to receive a signal of a first frequency group, and the third metal plate is configured to receive a signal of a second frequency group, wherein one end of the first metal plate Can be forced to bend.

One of the features of the present invention is to provide a force sensor comprising: a first metal plate, a second metal plate, and a third metal plate that are not in contact with each other and are sequentially arranged in parallel, wherein the first metal The board is for inputting a signal source, the second metal plate is for outputting a signal having a first current value, and the third metal plate is for outputting a signal having a second current value, wherein one end of the first metal plate Can be forced to bend.

In an embodiment, the distance between the first metal plate and the second metal plate is equal to the distance between the second metal plate and the third metal plate.

In one embodiment, the first metal plate and the second metal plate form a first capacitor, and the second metal plate forms a second capacitance with the third metal plate. In another embodiment, the impedance of the first capacitor and the second capacitor is opposite when the first metal plate is not bent. with.

One of the features of the present invention is to provide a transmitter comprising: a movable element for moving along a direction of the axis of the transmitter for a stroke; an insulating substance for a rear end of the movable element; And a conductor located at a rear end of the insulating material for forming a force-sensing capacitor with the movable element and the insulating material.

In an embodiment, the transmitter further includes a pen tip segment located at a front end of the movable member. In an embodiment, the nib segment is a conductor that is electrically coupled to the movable element. In another embodiment, the nib segment is configured to emit an electrical signal, the signal strength of a certain frequency group of the electrical signal being related to the impedance value of the force sensing capacitor.

In one embodiment, the transmitter further includes an elastic member and a housing for elastic force between the movable member and the housing, so that when the movable member is subjected to the elastic force, the movement is moved to the stroke. Front end.

In one embodiment, the insulating material is an insulating film comprising a compressible conductor and a conductor pedestal. In another embodiment, the insulating material is a compressible insulating material.

In one embodiment, the contact surface of the insulating material with the conductor comprises one of: a single bevel, a plurality of raised faces, a tapered bevel, and a single raised face. In another embodiment, the contact surface of the conductor with the insulating material comprises one of: a single bevel, a plurality of raised faces, a tapered bevel, and a single raised face.

In one embodiment, the insulating material and the conductor are located in an inner chamber of the housing. In another embodiment, the inner chamber is cylindrical.

In one embodiment, the movable element includes a front end movable element and a rear end movable element, wherein the front end movable element is in contact with and electrically coupled to the nib section.

In one embodiment, the transmitter further includes a circuit board, wherein the circuit board is electrically coupled to the conductor through a base wire, and the circuit board is electrically coupled to the movable element through a movable component wire. In another embodiment, the movable element wire is connected to the elastic element.

In an embodiment, the resilient element does not surround the movable element. In another embodiment, the substrate lead does not surround the conductor.

One of the features of the present invention is to provide a circuit switch comprising a first circuit board, a second circuit board, and a third circuit board arranged in parallel and sequentially, and a double bevel device, wherein the first a first end of the circuit board and a first end of the third circuit board respectively abut the two inclined surfaces of the double bevel device, and a first end of the second circuit board is not in contact with the double bevel device, The first end of the second circuit board includes a circuit, and a second point and a third point of the circuit are respectively connected to a first point of the first circuit board and a fourth point of the third circuit board Short circuit and electrically coupled.

In an embodiment, when the double bevel device moves toward the second circuit board, the first circuit board and the third circuit board are pressed by the double bevel device to be bent up and down respectively, so that the first circuit board One point is open to the second point and is electrically uncoupled and the third point and the fourth point are open and electrically uncoupled.

In one embodiment, the first point is connected in parallel to a first connection 埠 and a high potential, the fourth point is connected to a low potential, when the first point is shorted to the second point and the third point is shorted to the fourth point The first connection port is low, and when the first point and the second point are open or the third point and the fourth point are open, the first connection port is high.

In one embodiment, the double bevel device is coupled to a sharp segment of a transmitter.

In an embodiment, the circuit is located at the first end edge of the second circuit board.

One of the features of the present invention is to provide a circuit switch comprising a first circuit board, a second circuit board, and a third circuit board arranged in parallel and sequentially, and a double bevel device, wherein the first a first end of the circuit board and a first end of the third circuit board respectively abut the two inclined surfaces of the double bevel device, and a first end of the second circuit board is not in contact with the double bevel device, The first end of the second circuit board includes a circuit, and a second point on the circuit is shorted and electrically coupled to a first point of the first circuit board.

In an embodiment, when the double bevel device moves toward the second circuit board, the first circuit board and the third circuit board are pressed by the double bevel device to be bent up and down respectively, so that the first circuit board One point is open to the second point and is not electrically coupled.

In one embodiment, the first point is connected in parallel to a first connection port and a high potential, the second point is connected to a low potential, and when the first point is short-circuited to the second point, the first connection port is low. When the first point and the second point are open circuited, the first connection port is high.

In one embodiment, the double bevel device is coupled to a sharp segment of a transmitter.

In an embodiment, the circuit is located at the first end edge of the second circuit board.

One of the features of the present invention is to provide a stylus comprising: a control unit, a tip segment, and a circuit switch, the circuit switch including a first circuit board and a second circuit that are parallel to each other and sequentially arranged And a third circuit board; and a pair of beveling devices connected to the pen tip segment, wherein a first end of the first circuit board and a first end of the third circuit board respectively abut the double bevel device The two bevels, a first end of the second circuit board is not in contact with the double bevel device, the first end of the second circuit board includes a circuit, and a second point and a second The three points are short-circuited and electrically coupled to a first point of the first circuit board and a fourth point of the third circuit board, and the first point is connected in parallel to a first connection 该 and a high potential of the control unit. The fourth point is connected to a low potential, and the first connection 埠 is low.

In an embodiment, when the double bevel device moves toward the second circuit board, the first circuit board and the third circuit board are pressed by the double bevel device to be bent up and down respectively, so that the first circuit board One point is open and electrically uncoupled from the second point, and the third point and the fourth point are open and electrically uncoupled, and the first connection 埠 is high.

In an embodiment, the control unit is woken up when the first port is changed from a low level to a high level.

One of the features of the present invention is to provide a stylus comprising: a control unit, a tip segment, and a circuit switch, the circuit switch including a first circuit board and a second circuit that are parallel to each other and sequentially arranged And a third circuit board; and a pair of beveling devices connected to the pen tip segment, wherein a first end of the first circuit board and a first end of the third circuit board respectively abut the double bevel device The two bevels, a first end of the second circuit board is not in contact with the double bevel device, the first end of the second circuit board includes a circuit, and a second point of the circuit and the first A first point of the circuit board is short-circuited and electrically coupled. The first point is connected in parallel to a first connection 该 of the control unit to a high potential, and the second point is connected to a low potential, and the first connection 埠 is at a low potential.

In an embodiment, when the double bevel device moves toward the second circuit board, the first circuit board and the third circuit board are pressed by the double bevel device to be bent up and down respectively, so that the first circuit board One point is open to the second point and is electrically uncoupled, and the first connection 埠 is high.

In an embodiment, the control unit is woken up when the first port is changed from a low level to a high level.

One of the features of the present invention is to provide a signaling method for controlling a sender. The method includes: transmitting a first time period electrical signal in a first time period; and transmitting a second time period electrical signal in a second time period, wherein the first time period electrical signal and the second time period electrical signal include a signal frequency The group is different.

One of the features of the present invention is to provide a transmitter for emitting a first time period electrical signal during a first time period and a second time period electrical signal for a second time period, wherein the first time period The electrical signal is different from the signal frequency group included in the second time electrical signal.

A touch control system includes: a transmitter, a touch panel, and a touch processing device connected to the touch panel, according to a first time period. And detecting, by the electrical signal, a second time period electrical signal, wherein the transmitter is configured to send the first time period electrical signal in a first time period; and issue the second time period in a second time period An electrical signal, wherein the first time period electrical signal is different from the signal frequency group included in the second time period electrical signal.

In an embodiment, the one signal frequency group described above includes signals of one or more frequencies.

In an embodiment, the first time period is after the transmitter detects a beacon signal. In another embodiment, there is a first delay time between the detection period of the beacon signal and the first period.

In an embodiment, there is a second delay time between the first time period and the second time period.

In an embodiment, there is a third delay time after the second time period.

In an embodiment, an interference signal is detected before the transmitter detects the beacon signal. In another embodiment, the interference signal includes the first time period electrical signal and the first A signal having a coherent frequency among the two-time electrical signals.

Referring to Table 1 above, in an embodiment, when a tip segment of the transmitter does not contact an object, a first signal source of the transmitter and a second signal source simultaneously emit the same signal frequency. Group.

Referring to Table 1 above, in an embodiment, when the pen tip segment does not contact the object and a first switch of the transmitter is open, the first signal source and the second signal source simultaneously issue the same one. a first signal frequency group, when the pen tip segment is not in contact with the object and the first switch is shorted, the first signal source and the second signal source simultaneously emit the same second signal frequency group in the first time period The first signal frequency group is different from the second signal frequency group.

Referring to Table 1 above, in an embodiment, when the pen tip segment is not in contact with the object and a second switch of the transmitter is open, the first signal source and the second signal source are simultaneously issued the same a first signal frequency group, when the pen tip segment is not in contact with the object and the second switch is shorted, the first signal source and the second signal source simultaneously emit the same third signal frequency group in the second time period The first signal frequency group is different from the third signal frequency group.

Referring to Table 2 above, in an embodiment, when the pen tip segment contacts an object, a first signal source and a second signal source of the transmitter are respectively sent in the second time period and the first time period. Different signal frequency groups.

Referring to Table 2 above, in an embodiment, when the pen tip segment contacts the object and a first switch of the transmitter is open, the second signal source sends a first signal frequency group in the first time period. When the pen tip segment contacts the object and the first switch is shorted, the second signal source sends a second signal frequency group in the first time period, wherein the first signal frequency group is different from the second signal Frequency group.

Referring to Table 2 above, in an embodiment, when the pen tip segment contacts the object and a second switch of the transmitter is open, the first signal source sends a third signal frequency group in the second time period. a group, when the pen tip segment contacts an object and the second switch is shorted, causing the first signal source to emit the second signal frequency group in the second time period, wherein the third signal frequency group is different from the second signal Frequency group.

In an embodiment, the first signal source and the second signal source respectively have a ratio of a first signal strength M1 and a second signal strength M2 emitted by the second period to the first period corresponding to the A force on the letter.

In an embodiment, the signaling method is further included in a zeroth period, wherein a ring electrode emits a zero-th period electrical signal, wherein the zero-th period is after the transmitter detects a beacon signal. . In another embodiment, there is a zeroth delay between the detection period of the beacon signal and the zeroth period.

In one embodiment, the ring electrode is caused to emit no electrical signal during the first time period and the second time period.

In an embodiment, the zeroth time period electrical signal is different from the signal frequency group included in the first time period electrical signal and the second time period electrical signal.

One of the features of the present invention is to provide a method for controlling a sender of a transmitter, comprising: transmitting a first period electrical signal during a first time period; and transmitting a second time period electrical signal during a second time period, The first time period electrical signal is the same as the signal frequency group included in the second time period electrical signal.

One of the features of the present invention is to provide a transmitter for transmitting a first time period electrical signal during a first time period and a second time period electrical signal for a second time period, The first time period electrical signal is the same as the signal frequency group included in the second time period electrical signal.

A touch control system includes: a transmitter, a touch panel, and a touch processing device connected to the touch panel, according to a first time period. And detecting, by the electrical signal, a second time period electrical signal, wherein the transmitter is configured to emit the first time period electrical signal in a first time period; and output the second time period electrical signal in a second time period And wherein the first time period electrical signal is the same as the signal frequency group included in the second time period electrical signal.

In an embodiment, the one signal frequency group described above includes signals of one or more frequencies.

In an embodiment, the first time period is after the transmitter detects a beacon signal. In another embodiment, there is a first delay time between the detection period of the beacon signal and the first period.

In an embodiment, there is a second delay time between the first time period and the second time period.

In an embodiment, there is a third delay time after the second time period.

In an embodiment, an interference signal is detected before the transmitter detects the beacon signal. In another embodiment, the interference signal includes a signal having a coherent frequency with the first time period electrical signal and the second time period electrical signal.

Referring to Table 3 above, in an embodiment, when a tip segment of the transmitter does not contact an object, a first signal source of the transmitter and a second signal source simultaneously emit the same signal frequency. Group.

Please refer to Table 3 above. In an embodiment, when the pen tip segment is not in contact with the object And the first signal source and the second signal source simultaneously emit the same first signal frequency group when the first switch of the transmitter is open, when the pen tip segment is not in contact with the object and the first switch is shorted And causing the first signal source and the second signal source to simultaneously emit the same second signal frequency group, wherein the first signal frequency group is different from the second signal frequency group.

Referring to Table 3 above, in an embodiment, when the pen tip segment is not in contact with the object and a second switch of the transmitter is open, the first signal source and the second signal source are simultaneously issued the same a first signal frequency group, when the pen tip segment is not in contact with the object and the second switch is shorted, the first signal source and the second signal source simultaneously emit the same third signal frequency group, wherein the first signal source group The signal frequency group is different from the third signal frequency group.

Referring to Table 4 above, in an embodiment, when the pen tip segment contacts an object, a first signal source and a second signal source of the transmitter are respectively sent in the second time period and the first time period. The same signal frequency group.

Referring to Table 4 above, in an embodiment, when the pen tip segment contacts the object and a first switch of the transmitter is open, the second signal source sends a first signal frequency group in the first time period. When the pen tip segment contacts the object and the first switch is shorted, the second signal source sends a second signal frequency group in the first time period, wherein the first signal frequency group is different from the second signal Frequency group.

Referring to Table 4 above, in an embodiment, when the nib segment contacts the object and a second switch of the transmitter is open, the first signal source is caused to emit a third signal frequency group in the second period. a group, when the pen tip segment contacts an object and the second switch is shorted, causing the first signal source to emit the second signal frequency group in the second time period, wherein the third signal frequency group is different from the second signal Frequency group.

In an embodiment, the signaling method is further included in a zeroth period, wherein a ring electrode emits a zero-th period electrical signal, wherein the zero-th period is after the transmitter detects a beacon signal. . In another embodiment, there is a zeroth delay between the detection period of the beacon signal and the zeroth period.

In one embodiment, the ring electrode is caused to emit no electrical signal during the first time period and the second time period.

In an embodiment, the zeroth time period electrical signal is the same as the signal frequency group included in the first time period electrical signal and the second time period electrical signal.

In an embodiment, the first signal source and the second signal source respectively have a ratio of a first signal strength M1 and a second signal strength M2 emitted by the second period to the first period corresponding to the A force on the letter.

One of the features of the present invention is to provide a method for detecting a transmitter, comprising: detecting a first time period electrical signal sent by the sender during a first time period; and The second time period electrical signal sent by the transmitter is detected, wherein the first time period electrical signal is different from the signal frequency group included in the second time period electrical signal.

One of the features of the present invention is to provide a touch processing device for detecting a transmitter for connecting a touch panel, wherein the touch panel includes a plurality of first electrodes and a plurality of second electrodes and overlapping portions thereof. a plurality of sensing points, wherein the touch processing device is configured to detect a first time period electrical signal sent by the transmitter during a first time period; and detect the sender device in a second time period And generating a second time period electrical signal, wherein the first time period electrical signal is different from the signal frequency group included in the second time period electrical signal.

One of the features of the present invention is to provide a touch system, the touch system package The device includes: a transmitter, a touch panel, and a touch processing device connected to the touch panel, configured to detect the transmitter according to the first time period electrical signal and the second time period electrical signal, wherein the transmitter The transmitter is configured to emit a first time period electrical signal during a first time period; and emit a second time period electrical signal during a second time period, wherein the first time period electrical signal and the second time period electrical signal are included The signal frequency group is different.

In an embodiment, the one signal frequency group described above includes signals of one or more frequencies.

In an embodiment, the first time period is after the touch panel emits a beacon signal. In another embodiment, there is a first delay time between the issue period of the beacon signal and the first time period.

In an embodiment, there is a second delay time between the first time period and the second time period.

In an embodiment, there is a third delay time after the second time period. In an embodiment, the second period of time further includes other detecting steps.

In one embodiment, an interference signal is detected prior to being sent to the beacon signal. In another embodiment, an interference signal is detected after the first time period. In a further embodiment, an interference signal is detected after the second time period. In another embodiment, the interference signal includes a signal having a coherent frequency with the first time period electrical signal and the second time period electrical signal.

Referring to Table 1 above, in an embodiment, when the sender simultaneously issues a single signal frequency group, it is determined that a pointed segment of the transmitter is not in contact with the object.

Referring to Table 1 above, in an embodiment, when the sender sends the same first signal frequency group in the first time period, determining that the pen tip segment is not in contact with the object and the sending A first switch of the device is open, and when the transmitter simultaneously sends the same second signal frequency group in the first time period, determining that the pen tip segment is not in contact with the object and the first switch is shorted, wherein the first signal is The frequency group is different from the second signal frequency group.

Referring to Table 1 above, in an embodiment, when the sender sends the same first signal frequency group in the second time period, determining that the pen tip segment is not in contact with the object and the transmitter is The second switch is open, and when the transmitter simultaneously sends the same third signal frequency group in the second period, determining that the pen tip segment is not in contact with the object and the second switch is shorted, wherein the first signal frequency group is different In the third signal frequency group.

Referring to Table 2 above, in an embodiment, when the first time period electrical signal and the second time period electrical signal comprise different signal frequency groups, it is determined that the pen tip segment contacts the object.

Referring to Table 2 above, in an embodiment, when the sender sends a first signal frequency group in the first time period, determining that the pen tip segment contacts the object and a first switch of the transmitter is open When the transmitter sends a second signal frequency group in the first time period, determining that the pen tip segment contacts the object and a first switch of the transmitter is shorted, wherein the first signal frequency group is different from the The second signal frequency group.

Referring to Table 2 above, in an embodiment, when the sender sends a third signal frequency group in the second time period, it is determined that the pen tip segment contacts the object and a second switch of the transmitter is open. When the transmitter sends the second signal frequency group in the second time period, determining that the pen tip segment contacts the object and the second switch is shorted, wherein the third signal frequency group is different from the second signal frequency group group.

In an embodiment, the method further includes: respectively calculating a ratio of a first signal strength M1 and a second signal strength M2 of the first period electrical signal to the second period electrical signal; And calculating a force of the transmitter based on the ratio value.

In an embodiment, the method further includes detecting, during a zeroth period, a zero-th period electrical signal sent by the transmitter, wherein the zero-th period is after the beacon signal is sent. In another embodiment, there is a zeroth delay between the issue period of the beacon signal and the zeroth period.

In an embodiment, the zeroth time period electrical signal is different from the signal frequency group included in the first time period electrical signal and the second time period electrical signal.

One of the features of the present invention is to provide a method for detecting a transmitter, comprising: detecting a first time period electrical signal sent by the sender during a first time period; and And detecting, by the transmitter, a second time period electrical signal, wherein the first time period electrical signal is the same as the signal frequency group included in the second time period electrical signal.

One of the features of the present invention is to provide a touch processing device for detecting a transmitter for connecting a touch panel, wherein the touch panel includes a plurality of first electrodes and a plurality of second electrodes and overlapping portions thereof. a plurality of sensing points, wherein the touch processing device is configured to detect a first time period electrical signal sent by the transmitter during a first time period; and detect the sender device in a second time period And generating a second time period electrical signal, wherein the first time period electrical signal is the same as the signal frequency group included in the second time period electrical signal.

A touch control system includes: a transmitter, a touch panel, and a touch processing device connected to the touch panel, wherein the touch panel includes a plurality of touch panels a plurality of sensing points formed by the first electrode and the plurality of second electrodes and the overlapping portion thereof, wherein the touch processing device is configured to detect a first time period electrical signal sent by the transmitter during a first time period And detecting, during a second time period, a second time period electrical signal sent by the transmitter, wherein the first time period electrical signal and the signal frequency group included in the second time period electrical signal The group is the same.

In an embodiment, the one signal frequency group described above includes signals of one or more frequencies.

In an embodiment, the first time period is after the touch panel emits a beacon signal. In another embodiment, there is a first delay time between the issue period of the beacon signal and the first time period.

In an embodiment, there is a second delay time between the first time period and the second time period.

In an embodiment, there is a third delay time after the second time period. In an embodiment, the second period of time further includes other detecting steps.

In one embodiment, an interference signal is detected prior to being sent to the beacon signal. In another embodiment, an interference signal is detected after the first time period. In another embodiment, an interference signal is detected after the second time period. In another embodiment, the interference signal includes a signal having a coherent frequency with the first time period electrical signal and the second time period electrical signal.

Referring to Table 3 above, in an embodiment, when the first time period electrical signal and the second time period electrical signal have the same single signal frequency group, determining that the pointer of the transmitter is not in contact with the object .

Referring to Table 3 above, in an embodiment, when the sender sends a first signal frequency group, it is determined that the pen tip segment is not in contact with the object and a first switch of the transmitter is open, when the transmitter When the controller sends a second signal frequency group, it is determined that the pen tip segment is not in contact with the object and the first switch of the transmitter is shorted, wherein the first signal frequency group is different from the second signal frequency group.

Referring to Table 3 above, in an embodiment, when the sender sends a first signal frequency group, it is determined that the pen tip segment is not in contact with the object and a second switch of the transmitter is open, when the transmitter When the signal is sent to a third signal frequency group, it is determined that the pen tip segment is not in contact with the object and the second switch of the transmitter is shorted, wherein the first signal frequency group is different from the third signal frequency group.

Referring to Table 4 above, in an embodiment, when the first period electrical signal and the second period electrical signal have the same single signal frequency group, and the first signal of the first period electrical signal When a ratio of the intensity M1 to a second signal strength M2 of the second period electrical signal is not within a first range, it is determined that a sharp segment of the transmitter contacts the object.

Referring to Table 4 above, in an embodiment, when the sender sends a first signal frequency group in the first time period and the ratio value is not in the first range, determining that the pen tip segment contacts the object and a first switch of the transmitter is open, and when the transmitter sends a second signal frequency group in the first time period and the ratio value is not in the first range, determining that the pen tip segment contacts the object and the hair is The first switch of the signal is shorted, wherein the first signal frequency group is different from the second signal frequency group.

Referring to Table 4 above, in an embodiment, when the sender sends a third signal frequency group in the second time period and the ratio value is not in the first range, determining that the pen tip segment contacts the object and A second switch of the transmitter is open, and when the transmitter sends a second signal frequency group in the second period and the ratio is not within the first range, determining that the nib segment contacts the object and the The second switch of the signal is shorted, wherein the third signal frequency group is different from the second signal frequency group.

In an embodiment, the method further includes: respectively calculating the first time period electrical signal and the first a ratio of a first signal strength M1 of the second period electrical signal to a second signal strength M2; and calculating a force of the transmitter based on the ratio.

In an embodiment, the method further includes detecting, during a zeroth period, a zero-th period electrical signal sent by the transmitter, wherein the zero-th period is after the beacon signal is sent. In another embodiment, there is a zeroth delay between the issue period of the beacon signal and the zeroth period.

In an embodiment, the zeroth time period electrical signal is the same as the signal frequency group included in the first time period electrical signal and the second time period electrical signal.

One of the features of the present invention is to provide a transmitter comprising: a tip segment; and a ring-shaped electrode surrounding the pen tip segment, the tip segment being electrically uncoupled from the ring electrode.

In an embodiment, the annular electrode comprises a plurality of unconnected electrodes.

In an embodiment, the annular electrode simultaneously emits an electrical signal with the nib segment during a zeroth period. In another embodiment, the pen tip segment emits an electrical signal during a first time period, but the ring electrode does not emit an electrical signal. In another embodiment, the first time period is after the zeroth time period.

In one embodiment, the ring electrode and the electrical signal emitted by the nib segment comprise the same set of signal frequency groups. In another embodiment, the ring electrode and the tip segment respectively emit different groups of signal frequencies.

One of the features of the present invention is to provide a method for detecting a position of a transmitter, wherein the transmitter includes a tip segment and a ring-shaped electrode surrounding the pen tip segment, and the pen tip segment and the ring electrode are electrically connected. Uncoupling, the detecting method includes: detecting an electrical signal simultaneously emitted by the ring electrode and the pen tip segment during a zeroth period; and detecting an electrical signal emitted by the pen tip segment during a first time period.

One of the features of the present invention is to provide a touch processing device for detecting a position of a transmitter, wherein the transmitter includes a pointed segment and a ring-shaped electrode surrounding the pen tip segment, the pen tip segment and the ring-shaped electrode The touch processing device is connected to a touch panel, and the touch panel includes a plurality of sensing points formed by the plurality of first electrodes and the plurality of second electrodes and the overlapping portions thereof. The device is configured to detect an electrical signal emitted by the ring electrode and the pen tip segment during a zero period; and detect an electrical signal emitted by the pen tip segment during a first time period.

One of the features of the present invention is to provide a touch control system including a transmitter, a touch panel, and a touch processing device connected to the touch panel, wherein the transmitter includes a pointed segment and a surround An annular electrode of the pen tip segment, the pen tip segment is electrically uncoupled from the ring electrode, and the touch panel comprises a plurality of sensing points formed by the plurality of first electrodes and the plurality of second electrodes and overlapping portions thereof The touch processing device is configured to detect an electrical signal simultaneously emitted by the ring electrode and the pen tip segment during a zeroth period; and detect an electrical signal emitted by the pen tip segment during a first time period.

In one embodiment, the ring electrode and the electrical signal emitted by the nib segment comprise the same set of signal frequency groups. In another embodiment, the ring electrode and the tip segment respectively emit different groups of signal frequencies.

In an embodiment, the first time period is after the zeroth time period.

In an embodiment, the method further includes calculating a first center of gravity position of the transmitter according to the electrical signal detected during the zeroth period. In another embodiment, the method further includes calculating a second center of gravity position of the transmitter according to the electrical signal detected during the first time period.

In an embodiment, according to the first center of gravity position and the second center of gravity position The surface of the touch panel is contacted by a surface of the touch panel, wherein the surface position is a position where the center of the tip of the transmitter intersects with the surface layer of the touch panel.

In an embodiment, calculating, according to the first center of gravity position and the second center of gravity position, a display position of the sender contacting a touch panel, wherein the display position is a tip end of the transmitter and the axis The position where the display layer of the touch panel meets.

In an embodiment, an inclination angle of the transmitter contacting a touch panel is calculated according to the first center of gravity position and the second center of gravity position.

One of the features of the present invention is to provide a method for calculating a surface position of a transmitter contacting a touch panel, the method comprising: receiving a first center of gravity position of the transmitter, the first center of gravity position being according to the A ring electrode of the transmitter is calculated from an electrical signal emitted by a tip segment; receiving a second center of gravity position of the transmitter, the second center of gravity position being calculated based on an electrical signal emitted by the tip segment And calculating the surface position according to the first center of gravity position and the second center of gravity position, wherein the surface position is a position where the center of the tip portion of the transmitter intersects with the surface layer of the touch panel.

One of the features of the present invention is to provide a method for calculating a display position of a sender contacting a touch panel, the method comprising: receiving a first center of gravity position of the transmitter, the first center of gravity position being according to the A ring electrode of the transmitter is calculated from an electrical signal emitted by a tip segment; receiving a second center of gravity position of the transmitter, the second center of gravity position being calculated based on an electrical signal emitted by the tip segment And displaying the display position according to the first center of gravity position and the second center of gravity position, wherein the display position is a position where the tip axis of the sender intersects with the display layer of the touch panel.

One of the features of the present invention is to provide a computing sender contact with a touch surface. A method of tilting a plate, the method comprising: receiving a first center of gravity position of the transmitter, the first center of gravity position being based on an electrical signal emitted by a ring electrode and a tip segment of the transmitter Calculating; receiving a second center of gravity position of the transmitter, the second center of gravity position is calculated according to an electrical signal emitted by the pen tip segment; and calculating the position according to the first center of gravity position and the second center of gravity position Tilt angle.

In an embodiment, the first center of gravity position is further calculated during a zeroth time period. In another embodiment, the second center of gravity position is further calculated in a first time period. In an embodiment, the first time period is after the zeroth time period. In an embodiment, the ring electrode and the pen tip segment respectively emit different groups of signal frequencies.

One of the features of the present invention is to provide a display method comprising: receiving a position of a transmitter; receiving a tilt angle of the transmitter; and determining a display range based on the position and the tilt angle.

In one embodiment, the location comprises one of: a first center of gravity position; a second center of gravity position; a surface position; and a display position, wherein the first center of gravity position is based on a portion of the transmitter The electrode is calculated from an electrical signal emitted by a sharp segment, and the second center of gravity is calculated based on an electrical signal emitted by the tip segment, the surface position being the axis of the pen tip of the transmitter and a touch The position where the surface layer of the control panel meets, and the display position is the position where the axis of the pen tip segment of the sender intersects with the display layer of the touch panel. In an embodiment, the ring electrode and the pen tip segment respectively emit different groups of signal frequencies.

In an embodiment, the display range comprises an ellipse. In another embodiment, the location is located in one of: the center of the ellipse; one of the focal points of the ellipse; and one of the intersection of the elliptical bifocal line and the ellipse. In an embodiment, the ellipse The direction of the line connecting the bifocal points corresponds to the direction of the tilt angle.

In an embodiment, the display range comprises a teardrop shape. In another embodiment, the location is in one of: the center of the teardrop shape; the apex of the teardrop shape; and the endpoint of the teardrop shape. In an embodiment, the teardrop shape direction corresponds to the direction of the tilt angle.

In an embodiment, the direction of the display range corresponds to the direction of the tilt angle. In another embodiment, the size of the display range corresponds to the magnitude of the tilt angle. In a further embodiment, the color of the display range corresponds to one of: the magnitude of the tilt angle; and the direction of the tilt angle.

In an embodiment, the method further includes receiving a force of the transmitter, and the size of the display range corresponds to the magnitude of the force.

One of the features of the present invention is to provide a method for transmitting a transmitter, comprising: emitting a first power having a first signal strength when a force sensor of the transmitter does not sense a force a signal; and when the force sensor senses a force, emitting a second electrical signal having a second signal strength, wherein the first signal strength is greater than the second signal strength.

In an embodiment, the force sensor includes a sharp segment of the transmitter.

In one embodiment, the transmitter further includes a ring-shaped electrode, wherein the first electrical signal is emitted by the pen tip segment and the ring-shaped electrode, and the second electrical signal is emitted by the pen tip segment.

One of the features of the present invention is to provide a transmitter comprising: a force sensor; and a control module for: when the force sensor does not sense the force, the transmitter is Generating a first electrical signal having a first signal strength; and causing the transmitter to emit a second electrical signal having a second signal strength when the force sensor senses a force, wherein the first signal The intensity of the number is greater than the strength of the second signal.

One of the features of the present invention is to provide a transmitter comprising a pointed segment, wherein the transmitter is configured to generate a first signal according to a degree of force corresponding to the tip portion, and to transmit the first signal through the tip The segment emits an electrical signal including the first signal, an attribute of the electrical signal corresponding to the degree of force.

One of the features of the present invention is to provide a method for transmitting a sender, wherein the transmitter includes a pointed segment, the signaling method comprising: generating a first signal according to a degree of force corresponding to the pen tip segment And transmitting an electrical signal including the first signal through the tip segment, an attribute of the electrical signal corresponding to the degree of force.

In an embodiment, the electrical signal is analogous to the first signal. In an embodiment, the attribute is an intensity ratio of the first signal to the second signal of the electrical signal.

In one embodiment, the first signal is a signal of a first frequency group of the electrical signals, and the second signal is a signal of a second frequency group of the electrical signals. In an embodiment, the transmitter further includes a first component and a second component, wherein the first component is configured to generate the first signal according to the degree of force, and the second component is configured to generate the second component signal.

In an embodiment, the transmitter further includes an amplifier for respectively receiving the first signal and the second signal output by the first component and the second component, and amplifying and outputting the electrical signal to the nib segment. In another embodiment, the transmitter further includes a first amplifier for receiving and amplifying an output signal of a first signal source to the first component; and a second amplifier for receiving and amplifying a second signal The output signal of the source is to the first component.

In an embodiment, the first signal is the electrical signal in a first time period, The second signal is the electrical signal for a second time. In an embodiment, the first signal and the second signal have the same frequency group. In an embodiment, the transmitter further includes a first component and a second component, wherein the first component is configured to generate the first signal according to the degree of force, and the second component is configured to generate the second component signal. In an embodiment, the transmitter further includes an amplifier for respectively receiving the first signal and the second signal output by the first component and the second component, and amplifying and outputting the electrical signal to the nib segment.

110‧‧‧ sender

120‧‧‧Touch panel

211‧‧‧ first source

212‧‧‧second source

221‧‧‧ first component

222‧‧‧ second component

230‧‧‧ pen tip

Claims (12)

A transmitter comprising a tip segment, wherein the transmitter is configured to generate a first signal according to a degree of force corresponding to the pen tip segment, and send an electrical signal including the first signal through the pen tip segment, An attribute of the electrical signal corresponds to the degree of stress, wherein the attribute is an intensity ratio of the first signal to the second signal of the electrical signal, wherein the first signal is the first time An electrical signal, the second signal being the electrical signal for a second time. The transmitter of claim 1, wherein the electrical signal is analogous to the first signal. The transmitter of claim 1, wherein the first signal is a signal of a first frequency group of the electrical signals, and the second signal is a signal of a second frequency group of the electrical signals. . The transmitter of claim 1, further comprising a first component and a second component, wherein the first component is configured to generate the first signal according to the degree of force, and the second component is used to generate the first component The second signal. The transmitter of claim 4, further comprising an amplifier for respectively receiving the first signal and the second signal output by the first component and the second component, and amplifying and outputting the electrical signal to The nib segment. The transmitter of claim 4, further comprising: a first amplifier for receiving and amplifying an output signal of a first signal source to the first component; And a second amplifier for receiving and amplifying an output signal of a second signal source to the first component. The transmitter of claim 1, wherein the first signal and the second signal have the same frequency group. A transmitter sending method, wherein the transmitter comprises a pointed segment, the signaling method comprising: generating a first signal according to a degree of force corresponding to the pen tip segment; and transmitting the inclusion through the pen tip segment An electrical signal of the first signal, the attribute of the electrical signal corresponding to the degree of force, wherein the attribute is an intensity ratio of the first signal to the second signal of the electrical signal, wherein the first signal For the electrical signal in a first time, the second signal is the electrical signal in a second time. For example, the method of transmitting a patent of the eighth aspect, wherein the electrical signal is analogous to the first signal. The method of claim 8, wherein the first signal is a signal of a first frequency group of the electrical signals, and the second signal is a signal of a second frequency group of the electrical signals. . The method of claim 8, wherein the transmitter further comprises a first component and a second component, wherein the first component is configured to generate the first signal according to the degree of force, the first Two elements are used to generate the second signal. The method of claim 8, wherein the first signal and the second signal have the same frequency group.