TW201519038A - Processing apparatus and processing method - Google Patents

Abstract

The present invention provides a processing apparatus, which comprises a plurality of digital demodulators and an information transmitting module. Each of the digital demodulators is configured to generate in-phase and quadrature signal information corresponding to a frequency. The information transmitting module is configured to receive the in-phase and quadrature signal information and to process and to transmit.

Description

Processing device and processing method

The present invention relates to a touch control system, and more particularly to a touch processing device and a processing method that can save a wafer area.

Touch panels or touch screens are important human-machine interfaces, especially on consumer electronics such as mobile phones, tablets, or personal digital assistants. Touch screens are the most important output and input devices. Since capacitive touch screens, especially in the form of projected capacitors, are particularly sensitive to partial finger sensing, they are one of the major touch panel/screen designs on the market.

Touching a fingertip can block a portion of the screen, and the user cannot clearly confirm with the eyes where the touch screen detects. Moreover, writing with a fingertip may not be precisely controlled like using a pen. Therefore, in addition to the user's desire to touch with a finger, the user may also want to input the touch screen with a pen. In general, the area of the nib that touches the touch screen is much smaller than the area of the fingertip. For capacitive touch screens, it is a challenge to detect the change in capacitance caused by the pen. Especially in many professional drawing or typesetting applications, many function buttons need to be added to the design of the pen. Under such demand, the touch screen not only detects tiny nibs, but also detects whether these function buttons are pressed.

Since detecting a stylus that can mix multiple frequencies requires multiple demodulation transformers, and each demodulation transformer requires complex floating point operations, it consumes a large amount of wafer area. In general, there is a need in the market for a touch processing device. It can detect stylus with multiple frequencies without costing a large amount of wafer area to save costs.

In one embodiment, the present invention provides a processing apparatus including a plurality of digital demodulators and an information transfer module. Each digital demodulator is used to generate in-phase and quadrature signal information corresponding to a frequency. The information transmission module is configured to receive in-phase and quadrature signal information generated by the plurality of digital demodulation transformers for processing and transmission.

In another embodiment, the present invention provides a processing method comprising: performing a plurality of digital demodulation steps simultaneously, each digital demodulation step for generating in-phase and quadrature signal information corresponding to a frequency; Performing an information transmission step of receiving the in-phase and quadrature signal information generated by the plurality of digital demodulation steps for processing and transmission.

In summary, one of the main spirits of the present invention is to simplify the sampling and calculation of the digital demodulation transformer, and to concentrate the more complicated operations on a single information transmission interface, and even more computational resources. On the host. In this way, the area of the wafer occupied by each demodulation transformer can be minimized.

100‧‧‧ sender

110‧‧‧Power Module

120‧‧‧Processing module

130‧‧‧Sensor module

140‧‧‧frequency synthesis module

150‧‧‧Signal amplification module

160‧‧‧Transmission module

210~220‧‧‧Steps

300‧‧‧ touch system

320‧‧‧Touch panel

321‧‧‧first electrode

322‧‧‧second electrode

330‧‧‧Touch processing device

340‧‧‧Host

410‧‧‧ Receiver analog front end

420‧‧‧Demodulation Transducer

510‧‧‧Signal Generator

520I/520Q‧‧‧Mixer

530I/530Q‧‧‧ integrator

540I/540Q‧‧‧ squarer

550‧‧‧ rms square root

600‧‧ amp amplifier

605‧‧‧ Analog Digital Converter

610‧‧‧Signal Generator

620I/620Q‧‧‧Mixer

630I/630Q‧‧‧Addition integrator

640I/640Q‧‧‧ squarer

650‧‧‧ rms square root

700‧‧‧Amplifier

710‧‧‧ Analog Digital Converter

720‧‧‧Fourier converter

905~930‧‧‧Steps

1010‧‧‧transmitter detection module

1020‧‧‧Information Transfer Module

1030‧‧‧Capacitive detection module

1110~1130‧‧‧Steps

1210‧‧‧Signal Generator

1270‧‧‧Adder

1280‧‧‧ root square root

1310‧‧‧Signal Generator

1400‧‧‧Processing device

1410‧‧‧Digital Demodulation Transducer

1420‧‧‧Information Transfer Module

1490‧‧‧Host

1510‧‧‧Digital demodulation steps

1520‧‧‧Information transfer steps

1590‧‧‧Host

The first figure is a schematic diagram of a transmitter according to an embodiment of the invention.

The second figure is a schematic flowchart of a signaling method according to an embodiment of the invention.

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

FIG. 4 is a partial block diagram of a touch processing device according to an embodiment of the invention.

The fifth figure is a partial block diagram of an analog demodulator according to an embodiment of the invention.

Figure 6 is a partial block diagram of a digital demodulation transformer in accordance with an embodiment of the present invention.

FIG. 7 is a partial block diagram of a digital demodulation transformer according to an embodiment of the invention.

The eighth figure is a schematic diagram showing the result of demodulation of the digital demodulator according to the seventh figure.

FIG. 9A is a schematic flow chart of a method for sensing a transmitter according to an embodiment of the invention.

FIG. IB is a schematic flow chart of a method for sensing a transmitter according to an embodiment of the invention.

FIG. 10 is a block diagram of a touch processing device 330 according to an embodiment of the invention.

FIG. 11 is a schematic flow chart of a touch processing method according to an embodiment of the invention.

Figure 12 is a block diagram of a digital demodulation transformer in accordance with an embodiment of the present invention.

Figure 13 is a block diagram of a digital demodulation transformer in accordance with an embodiment of the present invention.

Figure 14 is a block diagram of a processing apparatus in accordance with an embodiment of the present invention.

FIG. 15 is a schematic flow chart of a processing method according to an embodiment of the 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.

In one embodiment, the transmitter referred to in the present invention may be a stylus. In some embodiments, the transmitter can be other items placed on the touch panel or screen. for example, When the touch screen presents the board of the game, the sender can be a piece. After the game program detects the position of the piece on the touch screen, the position of the piece can be known.

Regardless of the contact area of the transmitter with the touch panel, there are several contact points, and the transmitter includes at least one signaling anchor point. The touch panel or the screen can detect the position of the transmitting positioning point as a representative position of the object represented by the sender on the touch panel or the screen. In an embodiment, the transmitter can contact the touch panel, and only needs to send the positioning point to the touch panel, so that the touch panel can detect the sending location.

In an embodiment, the sender may include a plurality of signaling anchors. When the touch panel detects the plurality of signaling anchor points, the facing direction of the transmitter can be detected. In a further embodiment, the sender may include m signaling anchor points, and when the touch panel detects n of the signaling positioning points, the transmitter may be detected to be in touch. The pose on the panel. For example, the sender can be a triangle with four signaling fix points, each of which is placed at the top of the triangle. By detecting the three signaling positioning points on the touch panel, it is possible to detect which side of the triangle is in contact with the touch panel. The sender can be a cube with eight signaling fix points, each of which is placed at the top of the cube. This type of transmitter can be used as a dice.

Please refer to the first figure, which is a schematic diagram of a transmitter 100 according to an embodiment of the invention. The transmitter 100 includes a power module 110, a processing module 120, a sensor module 130, a frequency synthesizing module 140, a signal amplifying module 150, and a signaling module 160. As described above, the appearance of the transmitter 100 can be used as the shape of a stylus. In an embodiment, each of the above modules may be arranged in the interior of the stylus in the order shown in the first figure, and the lower end is used to contact or approach the touch panel. The transmitter 100 can include a master switch for opening and closing the call The power of the device 100.

The power module 110 may include circuits related to power supply and control, such as a battery pack, a direct current to direct current voltage conversion circuit, and a power management unit. The above battery pack may be a rechargeable battery or a disposable disposable battery. When the battery pack is a rechargeable battery, the power module 110 may further include a charging circuit for inputting an external power source into the rechargeable battery. In an embodiment, the charging circuit may be included in the power management unit for protecting the overdischarge and overcharge of the rechargeable battery.

The processing module 120 described above is used to control the transmitter 100, which may include a microprocessor. The sensor module 130 described above may include at least one sensor. The sensor can include a sensor such as a pressure sensor of a stylus tip, a button, an accelerometer, an inductometer, a knob, and the like. The state of the sensor can be binary in nature, for example the button can be in a pressed state or a popped state. The state of the accelerometer can be either stationary or in motion. The state of the sensor can also be a discrete value of diversity. For example, the pressure felt by the pressure sensor can be divided into four segments, ten segments, or sixteen segments. The state of the knob can also be divided into four segments, eight segments, sixteen segments, and the like. The state of the sensor can also be an analogous interval. The processing module 120 can detect the state of the sensor in the sensor module 130, thereby generating a transmitter state.

The frequency synthesizing module 140 includes a plurality of frequency generators and a frequency synthesizing module or a mixer. In an embodiment, the plurality of frequency generators described above may comprise a plurality of quartz oscillators. In another embodiment, the complex frequency generator described above can generate a plurality of frequencies using a single frequency source, using a frequency divider, a frequency multiplier, a phase lock circuit, and other suitable circuitry. These frequencies are not mutually resonant waves, and are different from the frequencies emitted by the touch panel for detecting the transmitter 100, and are not mutually resonant waves. Therefore, it is possible to avoid each frequency from each other The situation of interference.

In some embodiments, the range of the plurality of frequencies described above falls within a frequency range detectable by the touch panel. For example, the frequency range that a typical touch panel can detect is about 90 kHz to 250 kHz, so the frequency generated by a plurality of frequency generators can fall within this range.

In an embodiment, the processing module 120 may determine that the frequency synthesis module 140 mixes those frequencies in the plurality of frequencies. That is, it is possible to individually control whether a certain frequency is to be added to the mixer, and of course, it is also possible to control the signal strength of the individual frequencies. In another embodiment, the processing module 120 can determine the ratio of the signal strength of each frequency of the frequency synthesis module 140. For example, the ratio of the signal strength of the first frequency to the signal strength of the second frequency can be set to 3:7. It is also possible to set the ratio of the signal strengths of the first frequency, the second frequency, and the third frequency to 24:47:29 or the like. A person skilled in the art can understand that although the frequency synthesis module 140 can be used to generate and mix multiple frequencies, the processing module 120 may also synthesize the frequency according to the state of each sensor of the sensor module 130. Module 140 produces a single frequency that is not mixed with other frequencies.

In an embodiment, the signal strength of a certain frequency may correspond to a pressure sensor of the device in the sensor module 130 at the tip of the pen, or a knob having a plurality of segments. For example, in a drawing software, the pressure sensor of the stylus pen tip indicates the richness of the pen color, and the degree of rotation of the stylus knob indicates the diameter of the brush. Therefore, the signal intensity of the first frequency can be used to represent the pressure of the pressure sensor, and the signal strength of the second frequency can also be used to indicate the degree of rotation of the knob.

In another embodiment, the signal strength of a certain frequency can be utilized as a mixed The ratio of signal strength to correspond to the multi-state of a sensor. For example, when the ratio of the signal strength of the first frequency to the signal strength of the second frequency is 3:7, it indicates that the state of the sensor is the third segment of the ten segments, if the intensity ratio is changed to 6:4. , indicating that the state of the sensor is the sixth segment in the time period. In other words, if there are three frequencies, then the first signal intensity ratio of the first frequency to the second frequency, the second signal strength ratio of the second frequency to the third frequency, and the third frequency to the third frequency of the first frequency may be utilized. The signal strength ratios represent the states of three sensors with multiple states, respectively.

The signal amplifying module 150 is configured to amplify a signal generated by mixing the frequency synthesizing module 140. In one embodiment, the signal amplification described above corresponds to a pressure sensor of the device in the sensor module 130 at the tip of the pen. Assuming that the circuit of the pressure sensor corresponds to a variable gain amplifier (VGA) of the signal amplifying module 150, the circuit of the pressure sensor can directly control the variable gain without passing through the processing module 120. The gain of the amplifier. Therefore, the mixed signal output by the frequency synthesizing module 140 is amplified by the variable gain amplifier and sent to the transmitting module 160.

As previously stated, the signal strength of a frequency in a mixed signal can be utilized to represent the multi-state of a sensor. It is also possible to use the ratio of the signal intensities of the two frequencies in the mixed signal to represent the multivariate state of a sensor. At the same time, the signal amplification module 150 can be utilized to amplify the mixed signal for indicating the multi-state of the other sensor. For example, the transmitter 100 includes two sensors having a multi-state state, one being a pressure sensor of the device at the tip of the pen, and the other being a knob of the device at the pen body. The two are used to indicate the color depth and diameter of the stroke. In one embodiment, the intensity of the mixed signal can be used to represent the magnitude of the pressure experienced by the pressure sensor, and the state of the knob is represented by the ratio of the signal strengths of the two frequencies in the mixed signal.

In an embodiment of the invention, the signaling module 160 includes a pressure sensor with a device at the tip of the pen. The signaling module 160 can be a set of antennas or a conductor or electrode having a suitable impedance value, or can be referred to as an excitation electrode. The conductor or electrode of the nib is connected to the pressure sensor. When the signaling module 160 signals and touches the touch panel/screen, the signal flows into the sensing electrodes of the touch panel/screen. When the transmitting module 160 is close to but not touched to the touch panel/screen, the sensing electrodes of the touch panel/screen also sense the amount of signal change on the transmitting module 160, thereby enabling the touch panel/screen The sender 100 is detected to be close.

When the frequency synthesizing module 140 can synthesize n kinds of frequencies, the frequency of the signal can be used to modulate 2 ⁿ states. For example, when n is equal to three, eight states can be modulated by the frequency of the signal. Referring to Table 1, it is a representation of the state of the transmitter and the state of each sensor in accordance with an embodiment of the present invention.

In the embodiment shown in Table 1, the sensor module 130 includes three sensors, which are a pressure sensor of the pen tip, a first button, and a second button. These three sensors The states are all binary states, so there are eight sender states combined, as shown in Table 1. It will be understood by those skilled in the art that the above-mentioned transmitter state and each sensor state can be arbitrarily changed positions. For example, the first sender state can be reversed with other transmitter states, such as the seventh transmitter state.

Please refer to Table 2, which is a representation of the state of the transmitter and each frequency in accordance with an embodiment of the present invention. As described above, the frequency synthesis module 140 can synthesize three different frequencies. Therefore, each sender state can be mapped to each frequency. As shown in Table 2. It will be understood by those skilled in the art that the above-mentioned transmitter state and each sensor state can be arbitrarily changed positions. For example, the first sender state can be reversed with other transmitter states, such as the eighth transmitter state.

In one embodiment, the transmitter 100 still mixes the frequency and signals when the pressure sensor sensor of the pen tip does not sense the pressure. In another embodiment, when the pressure sensor sensor of the pen tip does not feel the pressure, the transmitter 100 does not mix the frequency and does not emit signal. Referring to Table 2, this state is the seventh sender state. In this embodiment, Table 1 can be modified to Table 3.

In the embodiments shown in Tables 1 to 3, the signal emitted by the transmitter 100 utilizes only the synthesis of frequencies as a factor of signal modulation. In the following embodiments, in addition to the synthesis of the frequency, the transmitter 100 may add a ratio of signal strength and/or signal strength of each frequency as a factor of signal modulation.

Please refer to Table 4, which is a representation of the transmitter frequency state and the state of each sensor in accordance with an embodiment of the present invention. Compared with the embodiment shown in Table 1, the state sensed by the pressure sensor is no longer limited to the binary state with/without contact pressure, but to the multi-state of greater than two. Therefore, the left column of Table 4 cannot be called the sender state and can only be called the sender frequency state. The modulation factor of the transmitter state of this embodiment takes into account the signal strength in addition to the frequency state.

Please refer to Table 5, which is a representation of the transmitter state and each frequency and signal strength according to an embodiment of the present invention. Wherein, the signal strength modulation may be a signal strength value of the mixed signal, for example, the number of contact pressure segments of the pressure sensor.

In the embodiment of Table 5, since the number of contact pressure segments of the pressure sensor corresponding to the fifth to eighth transmitter frequency states is zero, the result of the signal strength modulation can also be zero. In other words, no signal is sent. In another embodiment, the signal strength modulation may be a fixed value, and the fixed signal strength may be different from the signal strength corresponding to the number of contact pressure segments of the pressure sensor.

Please refer to the second figure, which is a schematic flowchart of a signaling method according to an embodiment of the invention. The signaling method can be applied to the transmitter 100 shown in the first figure, but is not limited thereto. The method of transmitting includes two steps. In step 210, a transmitter state is generated based on a state within a sensor module included in the transmitter. And in step 220, sending an electrical signal to the touch device according to the state of the transmitter, so that the touch device analyzes the electrical signal to know the state of the transmitter and the transmitter and the touch device. A relative position in which the electrical signal is a mixture of a plurality of frequencies.

In one embodiment, the sensor within the sensor module includes one of the following: a button, a knob, a pressure sensor (or pressure sensor), an accelerometer, or a gyroscope. The pressure sensor can be used to sense the degree of contact pressure between the transmitter and the touch device.

When the sensor module includes a plurality of sensors, the number of possible states of the transmitter state is the sum of the number of possible states of each of the plurality of sensors. Or in another embodiment, the transmitter status is represented as one of any combination of state representations for each of the plurality of sensors. In one embodiment, the state of a sensor within the sensor module is represented as a multiple of two, where n is an integer greater than or equal to zero.

The modulation factor of the above electrical signal includes one or a combination of the following: frequency, and intensity. In an embodiment, the signal strength of the electrical signal corresponds to the sensor mode The state of the sensor with multiple states within the group. In another embodiment, the signal strength of the first frequency and the second frequency mixed by the electrical signal corresponds to a state of the sensor having a multi-state in the sensor module. In a further embodiment, the signal strength of the electrical signal corresponds to a state of the first sensor having a multi-state in the sensor module, wherein the electrical signal is mixed with a first frequency and a first The signal strength ratio of the two frequencies corresponds to the state of the second sensor having a multivariate state in the sensor module.

One of the main spirits of the present invention is to use an electrical signal mixed with a plurality of frequencies so that the touch device can detect the position of the transmitter that emits the electrical signal and the state of the sensor thereon.

Please refer to the third figure, which is a schematic diagram of a touch system 300 according to an embodiment of the invention. The touch system 300 includes at least one transmitter 100, a touch panel 320, a touch processing device 330, and a host 340. In the present embodiment, the transmitter 100 can be applied to the transmitter described in the above embodiments, and is particularly suitable for the embodiments shown in the first and second figures. It is also worth noting that the touch system 300 can include a plurality of transmitters 100. The touch panel 320 is formed on a substrate, and the touch panel 320 can be a touch screen. The invention does not limit the form of the touch panel 320.

In an embodiment, the touch panel 320 includes a plurality of first electrodes 321 and a plurality of second electrodes 322, and a plurality of sensing points are formed at the overlapping portions. The first electrode 321 and the second electrode 322 are respectively connected to the touch processing device 330. In the mutual capacitance detection mode, the first electrode 321 may be referred to as a first conductive strip or a driving electrode, and the second electrode 322 may be referred to as a second conductive strip or a sensing electrode. The touch processing device 330 can use the driving voltage to the first electrodes 321 and measure the signal changes of the second electrodes 322 to obtain external conductive signals. The object approaches or contacts (referred to as the proximity) the touch panel 320. A person skilled in the art can understand that the touch processing device 330 can detect the proximity event and the proximity object by means of mutual capacitance or self-capacitance, and will not be described in detail herein. In addition to the mutual capacitance or self-capacitance detection method, the touch processing device 330 can also detect the electrical signal emitted by the transmitter 100, thereby detecting the relative relationship between the transmitter 100 and the touch panel 320. position. The present invention will be described in detail in the following paragraphs.

Also included in the third figure is a host 340, which may be an operating system such as a central processing unit, or a main processor within an embedded system, or other form of computer. In one embodiment, the touch system 300 can be a tablet computer, and the host computer 340 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 present invention does not limit the form of information transmitted between the host 340 and the touch processing device 330, as long as the transmitted information is related to the proximity event occurring on the touch panel 320.

Please refer to the fourth figure, which is a partial block diagram of a touch processing device 330 according to an embodiment of the invention. As described above, the touch processing device 300 can detect a proximity event by using the principle of mutual capacitance or self-capacitance, and thus the portion that is detected with capacitance is omitted here. In the embodiment shown in the fourth figure, a receiver analog front end 410 and a demodulation transformer 420 are included.

The receiver analog front end 410 is used to connect the aforementioned first electrode 321 or second electrode 322. In one embodiment, each of the first electrodes 321 and each of the second electrodes 322 are coupled to a receiver analog front end 410. In another embodiment, the plurality of first electrodes 321 are grouped, and the plurality of second electrodes 322 are grouped. Each group of first electrodes 321 corresponds to one receiver analog front end 410, and each group of second electrodes 322 Corresponds to another receiver analogy front end 410. Every reception The analog analog front end 410 receives signals of the first electrode 321 or the second electrode 322 in the group in turn. In another embodiment, a set of first electrodes 321 and a set of second electrodes 322 correspond to a receiver analog front end 410. The receiver analog front end 410 may firstly connect the first electrode 321 in the group of the first electrodes 321 in turn, and then connect the second electrodes 322 in the group of the second electrodes 322 in turn. Conversely, the receiver analog front end 410 may firstly connect the second electrode 322 in the group of the second electrodes 322 in turn, and then connect the first electrodes 321 in the group of the first electrodes 321 in turn. In an embodiment, the touch processing device 300 can include only one receiver analog front end 410. One of ordinary skill in the art will appreciate that the present invention does not limit the configuration of the first electrode 321 or the second electrode 322 to the receiver analog front end 410. In other words, the number of receiver analog front ends 410 included in the touch processing device 300 will be less than or equal to the sum of the first electrode 321 and the second electrode 322.

The receiver analog front end 410 can perform some filtering, amplification, or other analog signal processing. In some embodiments, the receiver analog front end 410 can receive the difference between two adjacent first electrodes 321 or the difference between two adjacent second electrodes 322. In an embodiment, each receiver analog front end 410 can output to a demodulation transformer 420. In another embodiment, each of the N receiver analog front ends 410 can be output to a demodulation transformer 420. In a further embodiment, each receiver analog output 410 can be output to N demodulators 420, where N is a positive integer greater than or equal to one. In some embodiments, the touch processing device 300 can include only one demodulator 420. One of ordinary skill in the art will appreciate that the present invention does not limit the configuration of the receiver analog front end 410 to the demodulation transformer 420.

The demodulator 420 is configured to demodulate and generate an electrical signal emitted by the transmitter 100 for obtaining information and signals of respective frequencies among the signals received by the corresponding first electrode 321 or the second electrode 322. Strength information. For example, the transmitter 100 can emit three frequencies. signal. The demodulator 420 can be used to resolve the signal strength of the three frequencies, the signal strength ratio for each of the two frequencies, and the overall signal strength. In the present invention, the demodulation transformer 420 can be implemented in an analog or digital manner, which is divided into three embodiments to illustrate.

Please refer to the fifth figure, which is a partial block diagram of an analog demodulator 420 according to an embodiment of the invention. An analog demodulator as shown in the fifth figure can be used to demodulate each frequency. It is also possible to use a plurality of analog demodulators shown in the fifth figure to demodulate multiple frequencies, for example, when the transmitter 100 can emit N kinds of frequencies, the analogy shown by the N fifth figures can be used immediately. Demodulation transformer to demodulate each frequency. Signal generator 510 is used to generate signals of corresponding frequencies.

The analog signal received from the receiver analog front end 410 can be sent to the two mixers 520I and 520Q via an optional amplifier. The mixer 520I receives the cosine signal output by the signal generator 510, and the mixer 520Q receives the sinusoidal signal output by the signal generator 510. The mixed signals output by the two mixers 520I and 520Q are output to the integrators 530I and 530Q, respectively. Next, the integrated signal will be sent by the integrators 530I and 530Q to the squarers 540I and 540Q, respectively. Finally, the outputs of the squarers 540I and 540Q will be summed by the rms 550 of the sum before the root mean square. In this way, the signal strength corresponding to the frequency of the signal generated by the signal generator 510 can be obtained. When the signal strengths of all frequencies are obtained, the ratio of the signal strength for each of the two frequencies, as well as the total signal strength, can be generated.

Please refer to the sixth figure, which is a partial block diagram of a digital demodulation transformer 420 according to an embodiment of the invention. Compared with the embodiment shown in the fifth figure, the embodiment shown in the sixth figure is performed in a digital manner. Similarly, a digital demodulator as shown in the sixth figure can be used to demodulate each frequency. You can also use multiple digit solutions as shown in the sixth figure. The modulator is configured to demodulate a plurality of frequencies, for example, when the transmitter 100 can emit N frequencies, the digital demodulator shown in the sixth figure is used to demodulate each frequency. Signal generator 610 is used to generate digital signals of corresponding frequencies.

The analog signal received from the receiver analog front end 410 can be sent to the analog digital converter 605 via the optional amplifier 600. The sampling frequency of the analog to digital converter 605 will correspond to the frequency of the signal emitted by the signal generator 610. In other words, when the analog to digital converter 605 performs a sampling, the signal generator 610 will send a signal to the two mixers 620I and 620Q, respectively. The mixer 620I receives the cosine signal output by the signal generator 610, and the mixer 620Q receives the sinusoidal signal output by the signal generator 610. The mixed signals output by the two mixers 620I and 620Q are output to the adder integrators 630I and 630Q, respectively. Next, the addition-completed signal is sent by the adder integrators 630I and 630Q to the squarers 640I and 640Q, respectively. Finally, the outputs of the squarers 640I and 640Q will be summed by the rms 650 of the sum, and then the root mean square. In this way, the signal strength corresponding to the signal frequency generated by the signal generator 610 can be obtained. When the signal strengths of all frequencies are obtained, the ratio of the signal strength for each of the two frequencies, as well as the total signal strength, can be generated.

Please refer to the seventh figure, which is a partial block diagram of a digital demodulator 420 according to an embodiment of the invention. The embodiment shown in the seventh figure is performed in a digital manner, and a digital demodulator as shown in the seventh figure can be used to demodulate and change each frequency. The analog signal received from the receiver analog front end 410 can be sent to the analog digital converter 710 via the optional amplifier 700. Then, the output digital signal is sent to the Fourier converter 720, and the signal strength of each frequency in the frequency domain can be demodulated. The above-described Fourier converter may be a digitalized fast Fourier converter.

Please refer to the eighth figure, which is a schematic diagram of the result of demodulation of the digital demodulator 420 according to the seventh figure. The results shown in the eighth figure are only an example, and in addition to the use of a graphical representation, a variety of data structures can be used to store the results of the demodulation. The horizontal axis of the eighth graph is the signal frequency, and the vertical axis is the signal strength. The signal strength corresponding to the N frequencies that may be emitted by the transmitter 100 can be obtained from the calculation result of the Fourier converter 720. In an embodiment, a threshold value can be set for the signal strength. A signal strength greater than the threshold value is considered to contain its corresponding frequency. After the signal strengths of the respective frequencies are obtained, the signal strength ratio for each of the two frequencies and the total signal strength can be calculated.

Although the embodiments of the three demodulation transformers 420 illustrated in the fifth to seventh embodiments can be implemented in the touch processing device 330 shown in the third embodiment, the present invention is not limited to the touch processing device. All steps of the demodulator 420 must be implemented 330. In some embodiments, certain steps of demodulator 420 may be performed by host 340. It is also worth noting that although embodiments of the digital demodulation 420 can be implemented using specific hardware, one of ordinary skill in the art will appreciate that the digital solution can also be implemented using software or firmware. The various components of the modulator 420. For example, a mixer can be implemented by multiplication, an addition integrator can be implemented by addition, and multiplication and addition are the most common operational instructions of a general processor.

Please refer to FIG. 9A, which is a schematic flowchart of a method for sensing a transmitter according to an embodiment of the invention. In step 910, a total signal strength of the electrical signal received by each of the first electrode and the second electrode is calculated. Step 910 can be implemented using the embodiments shown in the third to seventh figures. Next, in step 920, a relative position of the sender and the touch device is calculated based on the calculated total signal strength. In an embodiment, the position of the transmitter can be considered to correspond to the first electrode and the second electrode having the greatest total signal strength. In another embodiment, The position of the transmitter can be considered to correspond to the centroid of the adjacent first electrode and the adjacent second electrode having the largest total signal strength, the magnitude of which corresponds to the strength of the signal. Finally, in optional step 930, the sender status can be calculated based on the electrical signal information sent by the sender. One of ordinary skill in the art will appreciate that the implementation of step 930 can be pushed back according to the various tables described above.

Please refer to FIG. BB, which is a schematic flowchart of a method for sensing a transmitter according to an embodiment of the invention. In step 905, the total signal strength of the electrical signal received by each of the first or second electrodes can be calculated. After the demodulation changes the electrical signal received by the first electrode or the second electrode, the frequency of the signal sent by the transmitter can be known. For example, if the transmitter sends the first frequency and the second frequency without emitting the third frequency, the third frequency can be omitted during the calculation of the total signal strength of the other electrode performed in step 915. Calculation. If the digital demodulator shown in the seventh figure is used, the method shown in FIG. However, if the demodulator described in Figure 5 or Figure 6 is used and the number of demodulators is not sufficient to scan all frequencies at once, this can save some time and computational resources. Moreover, if the electrical signal emitted by the transmitter is not found after the calculation of the first electrode or the second electrode, step 915 may be omitted. Conversely, after the electrical signal sent by the transmitter is found, step 915 can calculate the total signal strength of the electrical signal received by the other electrode based on the received frequency signal strength of the electrical signal. The remaining steps 920 and 930 may be applied to the description of the embodiment of Figure IX.

It is to be noted that, in the flow of the ninth A and ninth B, if the causal relationship or order between the steps is not mentioned, the present invention does not limit the order in which the steps are performed. Additionally, it is mentioned in steps 905, 910, 915 that each of the first electrodes and/or the first The total signal strength of the electrical signal received by the two electrodes. In an embodiment, if only one single transmitter 100 is included in the touch system 300, the processes of the ninth A and ninth B diagrams may be modified to calculate at least one first electrode and the second Step 920 and step 930 may be performed when the total intensity of the electrical signal received by the electrode is greater than a threshold.

In one embodiment, the present invention provides a method of detecting a transmitter that is in proximity to a touch device. The transmitter transmits an electrical signal that is a mixture of a plurality of frequencies. The touch device includes a plurality of first electrodes and a plurality of second electrodes and a plurality of sensing points formed by the overlapping portions thereof. The method includes calculating, for each of the first electrode and each of the second electrodes, a total signal strength of the electrical signal received thereby; and calculating, according to each of the first electrodes and each of the second The total signal strength of the electrical signal received by the electrode calculates a relative position of the transmitter and the touch device.

The step of calculating the total signal strength of the electrical signal received by the method further comprises: calculating an intensity of a signal corresponding to each of the plurality of frequencies among the received electrical signals; and calculating the corresponding The intensity of the signal for each of the plurality of frequencies is summed. In one embodiment, the step of calculating the strength of the signal corresponding to one of the plurality of frequencies further comprises: mixing an in-phase signal with the received signal to generate an in-phase analog signal; The signal is mixed with the received signal to generate a quadrature analog signal, wherein the frequency of the in-phase signal and the quadrature signal is the one frequency; the in-phase analog signal is integrated to generate an in-phase integrated signal; The analog signal is integrated to generate an orthogonal integrated signal; and the root mean square of the sum of the square of the in-phase integrated signal and the square of the orthogonal integrated signal is calculated to obtain the strength of the signal corresponding to the certain frequency. In another embodiment, the above calculating the frequency corresponding to one of the plurality of frequencies The step of intensity of the signal further comprises: analog-digital conversion of the received signal to generate a digital received signal; mixing an in-phase signal with the digital received signal to generate an in-phase digital signal; and a quadrature signal and the digital signal Receiving signals are mixed to generate an orthogonal digital signal, wherein the frequency of the in-phase signal and the orthogonal signal is the certain frequency; the in-phase digital signal is additively integrated to generate an in-phase integrated signal; The signal is additively integrated to generate an orthogonal integrated signal; and the root mean square of the sum of the square of the in-phase integrated signal and the square of the orthogonal integrated signal is calculated to obtain the intensity of the signal corresponding to the one frequency. The frequency of the analog-to-digital conversion described above corresponds to the certain frequency. In still another embodiment, the step of calculating the strength of the signal corresponding to one of the plurality of frequencies further comprises: analogically converting the received signal to generate a digital received signal; and digitizing the digital signal The received signal is Fourier transformed to produce an intensity corresponding to each of the plurality of frequencies.

The step of calculating the total signal strength of the received electrical signal for each of the first electrode and each of the second electrodes further comprises: calculating a total signal strength of the electrical signal received by each of the first electrodes And calculating, according to the at least one electrical signal received by the first electrode, an intensity of a signal corresponding to each of the plurality of frequencies to obtain a set of frequencies mixed by the transmitter; and calculating the first Among the electrical signals received by the two electrodes, the total signal strength corresponding to the signal strength of each of the set of frequencies. The signal strength corresponding to each of the frequencies in the set of frequencies is greater than a threshold.

In one embodiment, the total signal strength of the electrical signal received by a certain one of the second electrodes is calculated while calculating the total signal strength of the electrical signal received by the one of the first electrodes.

The transmitter transmits the electrical signal according to a transmitter status, and the method further comprises calculating the transmitter status based on the information of the electrical signal. Calculating the state of the transmitter as described above, based on one or any combination of the following information of the electrical signal: a signal strength of one of the plurality of frequencies mixed by the electrical signal; a total signal of the electrical signal An intensity; and a ratio of a signal strength of the first frequency to the second frequency of the plurality of frequencies mixed by the electrical signal. In one embodiment, the total signal strength of the electrical signal corresponds to the state of the sensor having a multivariate state within the transmitter. In another embodiment, the signal strength of the first frequency and the second frequency mixed by the electrical signal corresponds to a state of a sensor having a multi-state in the transmitter. In a further embodiment, the signal strength of the electrical signal corresponds to a state of the first sensor having a multivariate state in the transmitter, wherein the first frequency and the second frequency are mixed by the electrical signal The signal strength ratio corresponds to the state of the second sensor having a multivariate state within the transmitter.

In one embodiment, when the transmitter includes a plurality of sensors, the number of possible states of the transmitter state is the sum of the number of possible states for each of the plurality of sensors. In another embodiment, the transmitter status is represented as one of any combination of state representations for each of the plurality of sensors.

The present invention provides a touch processing device for detecting a sender that is closely connected to a touch device. The transmitter transmits an electrical signal that is a mixture of a plurality of frequencies. The touch device includes a plurality of first electrodes and a plurality of second electrodes and a plurality of sensing points formed by the overlapping portions thereof. The touch processing device is configured to: calculate, for each of the first electrodes and each of the second electrodes, a total signal strength of the electrical signal received by the first electrode; and each of the first electrodes and the calculated Calculating a relative position of the transmitter and the touch device for each of the total signal strengths of the electrical signals received by the second electrode.

The step of calculating the total signal strength of the electrical signal received by the method further comprises: calculating an intensity of a signal corresponding to each of the plurality of frequencies among the received signals; and calculating the corresponding corresponding to the complex number The strengths of the signals for each of the frequencies are summed up. In one embodiment, the touch processing device further includes a demodulator for calculating the intensity of the signal corresponding to one of the plurality of frequencies. The demodulator includes: a signal generator for generating an in-phase signal and a quadrature signal, wherein the frequency of the in-phase signal and the quadrature signal is the one frequency; at least one mixer is used for Combining the in-phase signal with the received signal to generate an in-phase analog signal, and mixing the quadrature signal with the received signal to generate an orthogonal analog signal; at least one integrator for the in-phase analog signal Integrating to generate an in-phase integrated signal, and integrating the orthogonal analog signal to generate an orthogonal integrated signal; at least one squarer for calculating a square of the in-phase integrated signal and a square of the orthogonal integrated signal; And at least a sum rms squarer for calculating a root mean square of a sum of a square of the in-phase integrated signal and a square of the orthogonal integrated signal to obtain a signal strength corresponding to the one of the frequencies. In another embodiment, the touch processing device further includes a demodulator for calculating the intensity of the signal corresponding to one of the plurality of frequencies. The demodulator includes: an analog-to-digital converter for analog-to-digital conversion of a received signal to generate a digital received signal; a signal generator for generating an in-phase signal and a quadrature signal, wherein The frequency of the in-phase signal and the orthogonal signal is the one frequency; at least one mixer is configured to mix the in-phase signal with the digital received signal to generate an in-phase digital signal, and the orthogonal signal The digital received signal is mixed to generate an orthogonal digital signal; at least one additive integrator is configured to add and integrate the in-phase digital signal to generate an in-phase integrated signal, and add and integrate the orthogonal digital signal to generate a Orthogonal integration a signal; at least one squarer for calculating a square of the in-phase integrated signal and a square of the orthogonal integrated signal; and a sum rms square for calculating a square of the in-phase integrated signal and the orthogonal integrated signal The root mean square of the sum of the squares to obtain the signal strength corresponding to the certain frequency. In a further embodiment, the touch processing device further includes a demodulator for calculating the intensity of the signal corresponding to each of the plurality of frequencies. The demodulator includes: an analog-to-digital converter for analog-to-digital conversion of a received signal to generate a digital received signal; and a Fourier converter for Fourier transforming the digital received signal to generate The intensity of the signal corresponding to each of the plurality of frequencies.

In an embodiment, the step of calculating the total signal strength of the received electrical signal for each of the first electrode and each of the second electrodes further comprises: calculating the electrical power received by each of the first electrodes a total signal strength of the signal; calculating, according to the at least one electrical signal received by the first electrode, an intensity of a signal corresponding to each of the plurality of frequencies to obtain a set of frequencies mixed by the transmitter And calculating a total signal strength of the signal strength corresponding to each of the set of frequencies among the electrical signals received by the second electrode. The signal strength corresponding to each of the frequencies in the set of frequencies is greater than a threshold.

Calculating a total signal strength of the electrical signal received by a certain one of the second electrodes while calculating a total signal strength of the electrical signal received by the one of the first electrodes.

The transmitter sends the electrical signal according to a transmitter status, and the touch processing device further includes calculating the transmitter status based on the information of the electrical signal. Wherein the calculating the state of the transmitter is based on one or any combination of the following information of the electrical signal: a signal strength of one of the plurality of frequencies mixed by the electrical signal; a total of the electrical signal a signal strength; and a signal of the first frequency and the second frequency of the plurality of frequencies mixed by the electrical signal Strength ratio.

In one embodiment, the total signal strength of the electrical signal corresponds to the state of the sensor having a multivariate state within the transmitter. In another embodiment, the signal strength of the first frequency and the second frequency mixed by the electrical signal corresponds to a state of a sensor having a multi-state in the transmitter. In a further embodiment, the signal strength of the electrical signal corresponds to a state of the first sensor having a multivariate state in the transmitter, wherein the first frequency and the second frequency are mixed by the electrical signal The signal strength ratio corresponds to the state of the second sensor having a multivariate state within the transmitter.

In one embodiment, when the transmitter includes a plurality of sensors, the number of possible states of the transmitter state is the sum of the number of possible states for each of the plurality of sensors. In another embodiment, when the transmitter includes a plurality of sensors, the transmitter state is represented as one of any combination of state representations for each of the plurality of sensors.

The present invention provides a touch processing system for detecting a transmitter that is closely connected to a touch device. The transmitter transmits an electrical signal that is a mixture of a plurality of frequencies. The touch processing system includes: the touch device, comprising: a plurality of first electrodes and a plurality of second electrodes; and a plurality of sensing points formed by the overlapping portions thereof; and a touch processing device, configured to: for each of the a first electrode and each of the second electrodes, calculating a total signal strength of the electrical signal received by the first electrode; and calculating, according to the calculated electrical signal received by each of the first electrode and each of the second electrodes The total signal strength is calculated as a relative position of the transmitter and the touch device.

In summary, one of the main spirits of the present invention is to detect a signal strength corresponding to a plurality of frequencies in the electrical signal received by the first electrode and the second electrode, thereby calculating a starter and a touch device. A relative position between them can also be pushed back by the sender status Know the state of each sensor on the transmitter. In addition, the present invention can also utilize the touch electrodes of the capacitive touch panel, so that the same capacitive touch panel can perform capacitive detection and can also detect the transmitter. In other words, the same capacitive touch panel can be used for finger detection, palm detection, and detection of a transmitter-type stylus.

Returning to the third figure, various forms of bus bars or physical connections may be used between the touch processing device 330 and the host 340. For example, use high-speed busbars such as PCI-Express, HyperTransport, SLI, or CrossFire. Or use a relatively low-speed USB, I ² C, or SPI transmission interface. In addition, the shared memory mode can also be used to transfer information between the two. The invention does not limit the connection between the two, as long as the message transmitted is related to the touch information.

In an embodiment, the transmitted message may include the relative position and sender status of the sender 100 and the touch panel 320. The host 340 can calculate the relative position and the signaling state regardless of the touch processing device 330. This embodiment is more suitable for a lower speed bus. In other embodiments, the touch processing device 330 may only perform detection and collection of touch signals, and put higher-order functions on the host 340 for execution. In this way, the cost of the touch processing device 330 can be reduced, and the computing resources of the host 340 can be fully utilized. In addition, it is easier to update the software of the host 340, so it can have greater flexibility to modify, modify, update, and add functions to the touch function.

For the host 340, the touch panel 320 includes a plurality of sensing points, each of which is composed of a first electrode 321 and a second electrode 322 that are stacked. To know the location of the proximity event, it can be calculated by sensing information of all the sensing points. Therefore, the touch processing device 330 can provide various kinds of dimensional sensing information to the host 340. In an embodiment, the above The 贰 dimension sensing information corresponds to each sensing point on the touch panel 320. However, in another embodiment, the above-described UI dimension sensing information corresponds to a portion of the sensing points on the touch panel 320. The present invention is not limited to the number of sensing points corresponding to the dimensional sensing information, as long as the dimensional sensing information corresponds to two or more first electrodes 321 and second electrodes 322.

In an embodiment, when the plurality of first electrodes 321 of the touch panel 320 emit a driving signal, the transmitter 100 generates an electrical signal after detecting the driving signal. The electrical signal can be detected by the demodulator described above, or can be detected by the capacitive detection module 1030. If it is detected by the demodulator, it can be known that the frequency of the electrical signal is mixed, and it can be known which second electrode 322 is detected. If it is detected by the capacitive detection module 1030, it can only be known which second electrode 322 is detected.

In an embodiment of mutual capacitance detection, the capacitive sensing module 1030 sequentially causes the plurality of first electrodes 321 to emit driving signals. When the transmitter 100 does not detect the driving signal from the first electrode 321 , no electrical signal is generated. Therefore, all of the second electrodes 322 cannot detect the electrical signal. However, when the transmitter 100 detects a driving signal from a certain first electrode 321, an electrical signal is generated. Therefore, the transmitter detection module 1010 knows that the transmitter 100 is located near the first electrode 321; and some of the second electrodes 322 can detect the electrical signal, and the transmitter detection module 1010 and / Or the capacitive detection module 1030 also knows that the transmitter is located near the second electrodes 322. In this way, the 贰 dimensional sensing information can be known simply by the signals received by the plurality of second electrodes 322. Further, the transmitter detection module 1010 can generate one dimensional sensing information through the signals received by all the second electrodes 322 in the same time period, and the capacitive detection module 1030 can also generate a dimension. Capacitance sensing information.

In an embodiment, the UI dimension sensing information may include information about the transmitter 100. The signal strength of the signal. In another embodiment, the 贰 dimensional sensing information may include the signal strength of the plurality of frequencies mixed by the sender 100. For example, the transmitter mixes three frequencies. Therefore, one 贰 dimension sensing information includes the signal strength of the first frequency, and the other dimension sensing information includes the signal strength of the second frequency, and a sense of dimension. The measurement information contains the signal strength of the third frequency. In this embodiment, since the host 340 knows the signal strengths of the three frequencies, it is only necessary to add the signal strengths of the respective frequencies corresponding to the same sensing point, and the signal of the signal sent by the transmitter 100 can be known. strength.

The above-described 贰-dimensional sensing information does not necessarily include an absolute value, and may also include a relative value. For example, after transmitting the signal strength of the first frequency, the 贰 dimensional sensing information may include transmitting a difference between the signal strength of the second frequency and the first frequency, and the signal of the third frequency and the first frequency/second frequency. The difference in intensity. Alternatively, the 贰 dimensional sensing information may include transmitting a ratio of a signal strength of the second frequency to the first frequency and a ratio of a signal strength of the third frequency to the first frequency/second frequency. In an embodiment, the total signal strength value may also be transmitted first, and then the proportional value of each frequency signal is separately transmitted. It has been mentioned previously that the modulation of certain messages takes the ratio of the signal strength of certain frequencies, so the transmission ratio can omit the step of the host 340 performing the operation. Of course, the host 340 can also perform a reduction calculation of the difference or ratio to obtain the original signal strength value.

In an embodiment, the touch processing device 330 may know that the electrical signal emitted by the transmitter 100 mixes the first frequency and the second frequency in the previous detection. Therefore, the touch processing device 330 transmits two pieces of dimensional sensing information, the first one-dimensional sensing information corresponding to the first frequency, and the second one-dimensional sensing information corresponding to the second frequency. In the latter detection, the electrical signal sent by the sender 100 is mixed due to the change of the transmitter state inside the sender 100. Three frequencies are combined. Therefore, the touch processing device 330 must transmit three 贰 dimensional sensing information, in particular, the third dimension sensing information corresponding to the third frequency. Conversely, in the latter detection, since the transmitter state inside the transmitter 100 changes, the electrical signal emitted by the transmitter 100 contains only a single frequency. Therefore, the touch processing device 330 can transmit only a single dimension sensing information. However, the present invention does not limit the touch processing device 330 to transmit only the corresponding dimensional sensing information of the received frequency. In an embodiment, the touch processing device 330 can transmit corresponding 贰 dimensional sensing information of all supported frequencies regardless of whether the transmitter 100 mixes the frequencies.

The above-mentioned 贰 dimensional sensing information may include multiple 壹 dimensional sensing information. In an embodiment, each of the 壹 dimensional sensing information may include sensing information of all of the sensing points in an axial direction. In another embodiment, the one-dimensional sensing information may include sensing information of an axial partial sensing point. For example, when the signal intensity corresponding to the part of the sensing point is non-zero, the 壹 dimension sensing information records the position of the sensing point of the non-zero value and its signal strength, and the 壹 dimensional sensing information may be referred to as a line segment (LPC) , Line Piece). In other words, the above-described UI dimension sensing information may include a plurality of line segments. Of course, the 壹 dimensional sensing information included in the line segment may also be a zero value. For example, when the line segment represents a difference between a signal strength value of a certain frequency and a signal strength value of another frequency, the difference may be zero. .

As mentioned above, when the touch processing device 330 transmits the touch information to the host 340, it may include a plurality of 贰 dimensional sensing information, and the 贰 dimensional sensing information may be transmitted in a time-sharing manner. For example, the signal strength for the first frequency on the first horizontal axis can be transmitted first, followed by the signal strength at the second frequency on the first horizontal axis. Subsequently, the signal strength of the first frequency on the second horizontal axis and the signal strength of the second frequency on the second horizontal axis are transmitted. And so on, until The signal strengths of the first frequency and the second frequency on all horizontal axes are transmitted. After receiving, the host 340 can compose two pieces of dimensional sensing information. The first 贰 dimension sensing information is the signal strength of the first frequency of all the sensing points, and the second 贰 dimension sensing information is the signal intensity of the second frequency of all the sensing points. In another embodiment, the touch processing device 330 may first transmit the first UI dimension sensing information and transmit the second UI dimension sensing information. The present invention does not limit the manner in which each of the dimensions of the sensed information is transmitted.

Through the plurality of first electrodes 321 and the second electrodes 322, in addition to detecting the transmitter 100, the touch processing device 330 can perform capacitive detection. For example, the driving voltage is applied to the first electrode 321 in sequence, and the amount of change in capacitance on the second electrode 322 is measured, and the projection capacitance can be measured. Alternatively, the capacitance change of each electrode can be measured in sequence, and the self-capacitance measurement can be performed. During the capacitive measurement, the touch processing device 330 can also generate a 贰 dimensional capacitance sensing information corresponding to the capacitance measurement result. These 贰 dimensional capacitance sensing information can be used to find external conductive objects that are in close proximity on the touch panel 320.

In an embodiment, since the time that the touch processing device 330 performs the transmitter detection and the time of the capacitive detection are staggered, the 贰 dimensional capacitance sensing information and the plurality of 贰 dimensional sensing information are respectively Transfer. However, in another embodiment, the touch processing device 330 can temporarily store a certain type of sensing information and transmit the transmitter detection information and the capacitive sensing information in a time sharing manner. For example, the touch processing device 330 can transmit the signal strength with respect to the first frequency on the first horizontal axis, then transmit the signal strength of the second frequency on the first horizontal axis, and finally transmit the capacitive mode on the first horizontal axis. Sensing information. Subsequently, the signal strength of the first frequency on the second horizontal axis and the signal strength of the second frequency on the second horizontal axis are transmitted, and finally the capacitive sensing information on the second horizontal axis is transmitted. And so on, until the first frequency on all horizontal axes is transmitted The signal strength of the second frequency and the capacitive sensing information.

The present invention does not limit the capacitive sensing information described above, and may be a plurality of dimensional capacitance sensing information composed of a plurality of dimensional sensing information, or may be a plurality of line segments. The above-mentioned 壹 dimensional sensing information may be a raw value of the capacitive sensing amount, a difference in capacitance sensing amount of adjacent electrodes, and/or a double difference value.

For the host 340, these 贰 dimensional sensing information can be considered as a single image. The host 340 that obtains each image can use various image processing technologies to perform detection of proximity events, identification and classification of proximity objects, trajectory tracking of adjacent objects, trajectory tracking commands, or interpretation of texts.

Please refer to the tenth figure, which is a block diagram of a touch processing device 330 according to an embodiment of the invention. The touch processing device 330 includes a transmitter detection module 1010, an information transmission module 1020, and a capacitive detection module 1030. The above-mentioned capacitive detection module 1030 is an optional module, and some of the circuits or components can be shared with the above-mentioned transmitter detection module 1010. The present invention does not limit the implementation of the touch processing device 330. The modules of the touch processing device 330 can be implemented by using a software, a hardware, or a combination of software and hardware.

The transmitter detection module 1010 is configured to detect a transmitter that emits an electrical signal when approaching or contacting the touch panel, and generates at least one dimensional sensing information, wherein the at least one dimension sensing information Sensing information corresponding to a plurality of sensing points of at least one frequency. The information transmission module 1020 is configured to transmit the at least one dimension sensing information.

The optional capacitive sensing module 1030 is configured to detect an external conductive object that is in contact with or in contact with the touch panel, and generate a dimensional capacitance sensing information, and the information transmission is performed. The module is further used to transmit the 贰 dimensional capacitance sensing information. In one embodiment, the above-described 贰 dimensional sensing information and the 贰 dimensional capacitance sensing information are completely alternately transmitted. In another embodiment, the above-described 贰 dimensional sensing information and the 贰 dimensional capacitance sensing information are alternately transmitted.

When the electrical signal is mixed by a plurality of frequencies, the transmitter detection module 1010 is configured to generate a plurality of 贰 dimensional sensing information, and the information transmission module 1020 is configured to transmit the plurality of 贰Dimensional sensing information, wherein each frequency corresponds to one of the plurality of 贰 dimensional sensing information. The number of the plurality of pieces of sensing information generated by the sender detecting module 1010 is greater than or equal to the number of the plurality of frequencies included in the electrical signal.

When the electrical signal is mixed by a plurality of frequencies, the transmitter detection module 1010 is configured to generate a plurality of 贰 dimensional sensing information, and the information transmission module 1020 is configured to transmit the plurality of 贰Dimensional sensing information, wherein each frequency corresponds to one of the plurality of 贰 dimensional sensing information. The number of the plurality of pieces of sensing information generated by the sender detecting module 1010 is greater than or equal to the number of the plurality of frequencies included in the electrical signal.

In one embodiment, a first one of the plurality of dimensional sensing information includes a relative value corresponding to a second dimensional sensing information. Wherein the relative value is one of the following: a difference, a ratio, or a fractional value.

In an embodiment, each of the plurality of pieces of dimensional sensing information described above is completely alternately transmitted. In another embodiment, each of the plurality of pieces of dimensional sensing information described above is alternately transmitted.

In one embodiment, the transmitter detects the driving signal sent by the capacitive sensing module to emit the electrical signal. In some embodiments, the driving signal is sequentially emitted by the plurality of first electrodes of the touch panel. Above The dimensional sensing information is sensed according to a plurality of second electrodes of the touch panel. In other embodiments, the driving signal is the capacitive detecting module, and the plurality of first electrodes of the touch panel are simultaneously emitted. The above-described 贰 dimensional capacitance sensing information and the 贰 dimensional sensing information are generated according to signals received during the same time period.

Please refer to FIG. 11 , which is a schematic flowchart of a touch processing method according to an embodiment of the invention. The touch processing method is suitable for connecting to one touch processing device of a touch panel including a plurality of sensing points. In step 1110, detecting a transmitter that emits an electrical signal when approaching or contacting a touch panel, and generating at least one dimensional sensing information, wherein the at least one dimensional sensing information corresponds to at least one frequency. Sensing information of multiple sensing points. In an optional step 1120, an external conductive object that is in proximity to or in contact with the touch panel is detected, and a dimensional capacitance sensing information is generated. In step 1130, the at least one dimensional sensing information and the optional dimensional capacitance sensing information are transmitted. In one embodiment, the above-described 贰 dimensional sensing information and the 贰 dimensional capacitance sensing information are completely alternately transmitted. In another embodiment, the above-described 贰 dimensional sensing information and the 贰 dimensional capacitance sensing information are alternately transmitted.

When the electrical signal is formed by mixing a plurality of frequencies, step 1110 may further include: generating a plurality of 贰 dimensional sensing information. Step 1130 may further include: transmitting the plurality of 贰 dimensional sensing information, wherein each frequency corresponds to one of the plurality of 贰 dimensional sensing information. The number of the plurality of dimension sensing information is greater than or equal to the number of the plurality of frequencies included in the electrical signal.

In one embodiment, a first one of the plurality of dimensional sensing information includes a relative value corresponding to a second dimensional sensing information. Wherein the relative value is one of the following: a difference, a ratio, or a fractional value.

In an embodiment, each of the plurality of pieces of dimensional sensing information described above is completely alternately transmitted. In another embodiment, each of the plurality of pieces of dimensional sensing information described above is alternately transmitted.

In an embodiment, the method further includes issuing a driving signal to the touch panel, and the transmitter detects the driving signal to emit the electrical signal. In some embodiments, the method further includes sequentially causing the plurality of first electrodes of the touch panel to emit the driving signal. The method further includes sensing the above-described dimension sensing information according to the plurality of second electrodes of the touch panel. In other embodiments, the method further includes causing the plurality of first electrodes of the touch panel to simultaneously emit the driving signal. The above-described 贰 dimensional capacitance sensing information and the 贰 dimensional sensing information are generated according to signals received during the same time period.

In summary, one of the main spirits of the present invention is that the touch processing device can provide sensing information corresponding to each frequency and optional capacitive sensing information, so that the receiving end can be generated by using the same touch panel. Multiple images for subsequent processing.

Returning to the embodiment shown in the fifth and sixth figures, the embodiment shown in the fifth figure is an analog demodulation transformer 420, which includes two squarers 540I and 540Q, and a rms sum of the sums. 550. The embodiment shown in the fifth figure is a digital demodulation transformer 420 comprising two squarers 640I and 640Q and a sum rms 650. In practice, the squarer and sum rms require a significant amount of wafer area. If each demodulator 420 contains the squarer described above and the sum rms, it will take up a lot of wafer area.

In order to solve the above problem, the square root and/or sum rms can be placed in the information transfer module 1030 shown in FIG. In one embodiment, the information transfer module 1030 splits each of the dimensional sense sensing information into a plurality of dimensional senses in a sequential manner. The information is transmitted to the host 340 in sequence. In other words, the information transfer module 1030 can receive the analog or digital in-phase integrated signal and the quadrature integrated signal, and then respectively send the in-phase integrated signal and the quadrature integrated signal to the two squares. Then, the output of the two squarers is sent to a rms square of the sum to perform the operation. Finally, the result of the operation is transmitted. In this way, the problem that the plurality of demodulators 420 occupy too much wafer area can be solved. In addition, assuming that the above-mentioned information transmission module 1030 adopts a relatively low-speed connection method, the time for performing the above calculation does not slow down the transmission speed.

In another embodiment, the information transfer module 1030 can include only one rms squarer, and the squarer and adder are retained in each demodulation transformer. In a further embodiment, the information transfer module 1030 can include only one adder and one rms, and the squarer is retained in each demodulation.

It is worth noting that since the time required for the square operation, the addition operation, and the root mean square operation are different, the number of circuits described above can be further adjusted in order to maintain continuous transmission. For example, assuming that the time required for the rms operation is five times the addition, the number of rms can be five times that of the adder. Assuming that the square operation requires twice as long as the adder, the number of squares can be four times that of the adder, because two square operations are required to do the addition. Those skilled in the art will appreciate that the number of circuits described above can also be adaptively adjusted to match the transfer rate of the information transfer module 1030.

In addition, in some embodiments, the square operations, addition operations, and root mean square operations described above are performed by host 340. In other words, the information transfer module 1030 can transmit some value to the host 340. In one embodiment, the squaring operation can be left in the demodulation transformer 420, the information transfer module 1030 is responsible for the addition operation, and the host 340 is responsible for the rms operation. In another embodiment, the information transfer module 1030 can also be responsible for the square operation and the addition operation, and the host 340 is responsible for the root mean square operation. The invention is not limited by which module or device is responsible for these operations.

In the above embodiments, the calculation is performed using a specific circuit. However, the present invention is not limited to calculation by a hardware circuit, and may be performed by software. For example, a more complex square operation can use hardware, and an add operation can use software. As for root mean square operation, hardware acceleration can be used. When performing calculations using software, it is also conceivable to perform calculations using a computational core that supports a multimedia computing instruction set or a special instruction set.

Please refer to the digital demodulator 420 shown in Fig. 12, which is a modification of the digital demodulator 420 shown in the sixth figure. Since it is only necessary to confirm whether there is a signal corresponding to a certain frequency among the electrical signals emitted by the transmitter 100, the sampling frequency of the analog digital converter 605 and the signal generator 1210 can be low. In an embodiment, sampling and mixing may be performed every 60 degrees. For example, the signal generator 1210 emits signals at 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees, and 330 degrees, and the analog digital converter 605 simultaneously samples. Then, among the above phases, the sinusoidal signal values sent to the mixer 620Q by the signal generator 610 shown in the sixth figure are 1/2, 1, 1/2, -1/2, -1, and - respectively. 1/2, and the cosine signal values sent to the mixer 620I by the signal generator 610 shown in the sixth figure are respectively /2, 0, /2,- /2, 0, and - /2. Assuming that the above sinusoidal signal value is multiplied by two, the value of the signal generator 1210 shown in Fig. 12 sent to the mixer 620Q is an integer, so that the multiplication required by the mixer 620Q does not involve floating point. The number only needs to be multiplied by 1, 2, 1, -1, -2, and -1. Suppose the above cosine signal value is multiplied by 2/ The value of the signal generator 1210 shown in FIG. 12 sent to the mixer 620I is an integer, and the multiplication required by the mixer 620I does not need to involve floating point numbers, and only needs to be multiplied by 1, 0, 1 , -1, 0, and -1.

Also because the signal sent to the mixer 620I is more than the signal sent to the 620Q. Therefore, the value obtained at the squarer 640I needs to be multiplied by three times by the multiplier 1260 to be equivalent to the value obtained by the squarer 640Q. The output of multiplier 1260 and squarer 640Q is sent to adder 1270. Finally, the result obtained from rms 1280 is twice the result obtained by demodulator 420 shown in FIG. If the demodulated signal strength obtained from each electrode is doubled, the signal strength ratio between the frequencies will remain the same.

As previously stated, the rms operation takes a long time and can be moved to the information transfer module 1030 or the host 340 for calculation. In this embodiment, since the squarers 640I and 640Q, the multiplier 1260, and the adder 1270 both calculate integers, only the rms 1280 will produce floating point numbers. If the portion of the floating point operation is moved out of the demodulation transformer 420, the complexity of the demodulation transformer 420 can be greatly reduced.

Please refer to the digital demodulator 420 shown in the thirteenth figure, which is a modification of the digital demodulator 420 shown in the sixth figure. The difference from the digital demodulator 420 shown in Fig. 12 is that the signal generator 1310 shown in Fig. 13 generates a value every 90 degrees, and the analog digital converter is also every 90 degrees. Sampling once. The signal generator 1310 generates digital values at 45 degrees, 135 degrees, 225 degrees, and 315 degrees. For sinusoidal signal values, the values corresponding to the above degrees are /2, /2,- /2,- /2. For the value of the cosine signal, the values corresponding to the above degrees are respectively /2,- /2,- /2, /2. Suppose you multiply both by 2/ Then, the sinusoidal signal values obtained at each phase are 1, 1, -1, -1, and the cosine signal values are 1, -1, -1, 1. Since the values multiplied by the two are the same, the resulting multiplication is also an integer. Finally, the result obtained from the rms 650 is twice that obtained by the demodulator 420 shown in the sixth figure. If the demodulated signal strength obtained from each electrode is doubled, the signal strength ratio between the frequencies will remain the same.

As previously stated, the rms operation takes a long time and can be moved to the information transfer module 1030 or the host 340 for calculation. In this embodiment, since the squarers 640I and 640Q are both integers calculated, only the sum rms 650 will generate a floating point number. If the portion of the floating point operation is moved out of the demodulation transformer 420, the complexity of the demodulation transformer 420 can be greatly reduced.

In another embodiment, the right triangle of the integer side length, which is also generated according to the Beth's theorem, also determines the phase at which the digit value is generated. For example, when the three sides of a triangle are three to four to five, the sine or cosine value can be 3/5 or 4/5. Assuming that both are multiplied by five, there is also a feature that the digital demodulator 420 performs integer calculation. However, in this embodiment, the phase sampled by the signal generator and the analog-to-digital converter is not equal as the above two examples.

Please refer to FIG. 14 , which is a block diagram of a processing device 1400 according to an embodiment of the invention. The processing device 1400 includes a plurality of digital demodulation transformers 1410 and an information transmission module 1420. Each digital demodulation transformer 1410 is operative to generate in-phase and quadrature signal information corresponding to a frequency. The information transmission module 1420 is configured to receive in-phase and quadrature signal information generated by the plurality of digital demodulation transformers 1410 for processing and transmission.

In one embodiment, each digital demodulator 1410 includes: an analog-to-digital converter for sampling an input signal and converting it into a digital received signal; a signal generator for using the analog-to-digital converter a sampling time point and the frequency, generating a corresponding in-phase signal and a quadrature signal; at least one mixer for mixing the in-phase signal and the digital receiving signal to generate an in-phase digital signal, and mixing the orthogonal signal Receiving a signal with the digit to generate An orthogonal digital signal; and at least one additive integrator for additively integrating the in-phase digital signal to generate an in-phase integrated signal, and additively integrating the orthogonal digital signal to generate an orthogonal integrated signal.

In one embodiment, the information transmission module 1420 is configured to transmit in-phase and quadrature signal information including the in-phase integrated signal and the quadrature integrated signal to a host 1490, and the host 1490 is configured to integrate the in-phase integrated signal. After squared with the orthogonal integrated signal, the rms calculation of the sum is performed to obtain a signal strength of the signal received by the digital demodulator corresponding to the in-phase and quadrature signal information at the frequency.

In another embodiment, the information transmission module 1420 is configured to calculate the sum of the in-phase integrated signal and the orthogonal integrated signal, calculate a sum, and transmit the in-phase and quadrature signal information including the sum to A host 1490 is configured to perform a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulator corresponding to the in-phase and quadrature signal information at the frequency.

In a further embodiment, the information transmission module 1420 is configured to square the in-phase integrated signal and the orthogonal integrated signal, and then perform a root mean square calculation of the sum to obtain the corresponding digital solution. The signal strength of the signal received by the modulator at the frequency, and then the signal strength is transmitted.

In one embodiment, both the mixer and the adder are operated in integers. For example, the signal generator described above generates a set of the in-phase signal and the quadrature signal every 60 degrees, and the analog-to-digital converter also performs sampling once every 60 degrees. The sinusoidal signal values of the above signal generators at 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees, and 330 degrees are 1, 2, 1, -1, -2, and -1, respectively, cosine. The signal values are 1, 0, 1, -1, 0, and -1. In another example, the signal generator described above generates a set of the in-phase signal and the quadrature signal every 90 degrees, and the analog-to-digital converter also performs sampling once every 90 degrees. The sinusoidal signal values of the above signal generators at 45 degrees, 135 degrees, 225 degrees, and 315 degrees are 1, 1, -1, and -1, respectively, and the cosine signal values are 1, -1, -1, respectively. And with 1.

In another embodiment, each of the digital demodulation transformers 1410 further includes: at least one squarer for calculating a square of the in-phase integrated signal and a square of the orthogonal integrated signal; and an adder for A sum of the square of the in-phase integrated signal and the square of the orthogonal integrated signal is calculated. The above information transmission module 1420 performs a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation transformer 1410 at the frequency, and transmits the signal strength. In another embodiment, the information transmission module 1420 is configured to transmit in-phase and quadrature signal information including the sum to a host 1490, and the host 1490 is configured to perform a root mean square calculation on the sum to obtain the The signal strength of the signal received by the digital demodulation transformer 1410 corresponding to the in-phase and quadrature signal information.

In one embodiment, the speed at which the information transfer module described above processes is equivalent to the speed at which the transfer is performed.

Please refer to a fifteenth figure, which is a schematic flowchart of a processing method according to an embodiment of the invention. The processing method includes: performing a plurality of digit demodulation steps 1510 simultaneously, each digit demodulation step 1510 for generating in-phase and quadrature signal information corresponding to a frequency; and performing an information transmission step 1520 to receive the plurality of The in-phase and quadrature signal information generated by the digital demodulation step is processed and transmitted.

In an embodiment, the digital demodulation step 1510 further includes: Receiving a signal for analog-to-digital conversion to generate a digital received signal; mixing an in-phase signal with the digital received signal to produce an in-phase digital signal; mixing a quadrature signal with the digital received signal to produce an orthogonal digital bit a signal, wherein the frequency of the in-phase signal and the quadrature signal is the frequency; the in-phase digital signal is additively integrated to generate an in-phase integrated signal; and the quadrature digital signal is additively integrated to generate an orthogonal integrated signal .

The processing and transmitting step 1520 further includes transmitting in-phase and quadrature signal information including the in-phase integrated signal and the quadrature integrated signal to a host 1590, where the host 1590 is configured to separately separate the in-phase integrated signal and the orthogonal integrated signal After squaring, the rms calculation of the sum is performed to obtain a signal strength of the signal received by the digital demodulation step 1510 corresponding to the in-phase and quadrature signal information at the frequency.

In another embodiment, the processing and transmitting step 1520 further includes: after summing the in-phase integrated signal and the orthogonal integrated signal respectively, calculating a sum, and transmitting the in-phase and quadrature signal information including the sum. To a host 1590, the host 1590 is configured to perform a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation step 1510 corresponding to the in-phase and quadrature signal information at the frequency.

In a further embodiment, the processing and transmitting step 1520 further includes: squaring the in-phase integrated signal and the orthogonal integrated signal separately, and then performing a root mean square calculation of the sum to obtain the corresponding digital position. Demodulation changes the signal strength of the received signal at step 1510 to the frequency, and then transmits the signal strength.

The above mixing step and the addition integration step are all performed by integers. For example, a set of the in-phase signal and the quadrature signal are generated every 60 degrees, and the analog-to-digital conversion step also performs sampling once every 60 degrees. Among them, 30 degrees, 90 degrees, The values of the sinusoidal signals emitted at 150 degrees, 210 degrees, 270 degrees, and 330 degrees are 1, 2, 1, -1, -2, and -1, respectively, and the cosine signal values are 1, 0, 1, -1, respectively. , 0, and -1. In another example, a set of the in-phase signal and the quadrature signal are generated every 90 degrees, and the analog-to-digital conversion step also performs sampling once every 90 degrees. The sinusoidal signal values emitted at 45 degrees, 135 degrees, 225 degrees, and 315 degrees are 1, 1, -1, and -1, respectively, and the cosine signal values are 1, -1, -1, and 1, respectively.

Each of the digital demodulation steps 1510 further includes calculating a sum of a square of the in-phase integrated signal and a square of the orthogonal integrated signal. The processing and transmitting step further includes performing a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation step 1510 at the frequency, and transmitting the signal strength. The processing and transmitting step further includes transmitting in-phase and quadrature signal information including the sum to a host 1590, and the host 1590 is configured to perform a root mean square calculation on the sum to obtain the in-phase and quadrature signal information. The digit demodulates the signal strength of the received signal at step 1510 to the frequency.

In one embodiment, the speed of the processing steps of the processing and transfer steps described above is equivalent to the speed of the transfer step.

In summary, one of the main spirits of the present invention is to simplify the sampling and calculation of the digital demodulation transformer, and to concentrate the more complicated operations on a single information transmission interface, and even more computational resources. On the host. In this way, the area of the wafer occupied by each demodulation transformer can be minimized.

1400‧‧‧Processing device

1410‧‧‧Digital Demodulation Transducer

1420‧‧‧Information Transfer Module

1490‧‧‧Host

Claims (28)

A processing device comprising: a plurality of digital demodulators, each digital demodulator for generating in-phase and quadrature signal information corresponding to a frequency; and an information transmission module for receiving the plurality of digital solutions The in-phase and quadrature signal information generated by the modulator is processed and transmitted. The processing device of claim 1, wherein each of the digital demodulator comprises: an analog-to-digital converter for sampling an input signal and converting it into a digital received signal; and a signal generator Generating a corresponding in-phase signal and a quadrature signal according to the sampling time point of the analog-to-digital converter and the frequency; at least one mixer for mixing the in-phase signal and the digital received signal to generate an in-phase digital signal And mixing the quadrature signal with the digital received signal to generate an orthogonal digital signal; and at least one additive integrator for additively integrating the in-phase digital signal to generate an in-phase integrated signal, and the orthogonality The digital signal is additively integrated to produce an orthogonal integrated signal. The processing device of claim 2, wherein the information transmission module is configured to transmit in-phase and quadrature signal information including the in-phase integrated signal and the orthogonal integrated signal to a host, and the host is configured to use the same phase After the integrated signal and the orthogonal integrated signal are respectively squared, the rms calculation of the sum is performed to obtain the digital demodulation corresponding to the in-phase and quadrature signal information. The signal strength of the signal received by the device at that frequency. The processing device of claim 2, wherein the information transmission module is configured to respectively square the in-phase integrated signal and the orthogonal integrated signal, calculate a sum, and transmit the in-phase and positive including the sum. The signal information is sent to a host, and the host performs a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulator corresponding to the in-phase and quadrature signal information at the frequency. The processing device of claim 2, wherein the information transmission module is configured to respectively square the in-phase integrated signal and the orthogonal integrated signal, and then perform a root mean square calculation of the sum to obtain a corresponding The signal strength of the signal received by the digital demodulator at the frequency is then transmitted. The processing device of claim 2, wherein the mixer and the adder are both operated by integers. The processing device of claim 6, wherein the signal generator generates a set of the in-phase signal and the quadrature signal every 60 degrees, and the analog-to-digital converter also has a phase every 60 degrees. Take a sample. The processing device of claim 7, wherein the sinusoidal signal values of the signal generators at 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees, and 330 degrees are 1, 2, respectively. 1, -1, -2, and -1, the cosine signal values are 1, 0, 1, -1, 0, and -1, respectively. The processing device of claim 6, wherein the signal generator generates a set of the in-phase signal and the quadrature signal every 90 degrees, and the analog-to-digital converter also has a phase of 90 degrees. Take a sample. The processing device of claim 9, wherein the sinusoidal signal values emitted by the signal generator at 45 degrees, 135 degrees, 225 degrees, and 315 degrees are 1, 1, -1, and -1, respectively. The cosine signal values are 1, -1, -1, and 1, respectively. The processing device of claim 2, wherein each of the digital demodulator further comprises: at least one squarer for calculating a square of the in-phase integrated signal and a square of the orthogonal integrated signal; and an addition And a unit for calculating a sum of a square of the in-phase integrated signal and a square of the orthogonal integrated signal. The processing device of claim 11, wherein the information transmission module performs a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation device at the frequency, and transmits the signal strength Signal strength. The processing device of claim 11, wherein the information transmission module is configured to transmit Incorporating the in-phase and quadrature signal information of the sum to a host, the host is configured to perform a root mean square calculation on the sum to obtain a signal received by the digital demodulation device corresponding to the in-phase and quadrature signal information. A signal strength of the frequency. The processing device of claim 1, wherein the speed at which the information transfer module performs processing is equivalent to the speed at which the transfer is performed. A processing method includes: performing a plurality of digital demodulation steps simultaneously, each digital demodulation step for generating in-phase and quadrature signal information corresponding to a frequency; and receiving the plurality of digital demodulation steps The in-phase and quadrature signal information is processed and transmitted. The processing method of claim 15, wherein the digital demodulation step further comprises: performing analog-to-digital conversion on the received signal to generate a digital received signal; and mixing an in-phase signal with the digital received signal to Generating an in-phase digital signal; mixing a quadrature signal with the digital received signal to generate an orthogonal digital signal, wherein the frequency of the in-phase signal and the orthogonal signal is the frequency; and integrating the in-phase digital signal Generating an in-phase integrated signal; and integrating the orthogonal digital signal to generate an orthogonal integrated signal. The processing method of claim 16, wherein the processing and transmitting step further comprises transmitting in-phase and quadrature signal information including the in-phase integrated signal and the orthogonal integrated signal to a host, the host is configured to use the in-phase After the integrated signal and the orthogonal integrated signal are respectively squared, the rms calculation of the sum is performed to obtain a signal of the received signal at the frequency corresponding to the in-phase and quadrature signal information. strength. The processing method of claim 16, wherein the processing and transmitting step further comprises: after squaring the in-phase integrated signal and the orthogonal integrated signal separately, calculating a sum, and transmitting the in-phase sum including the sum Orthogonal signal information is sent to a host, and the host performs a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation step corresponding to the in-phase and quadrature signal information at the frequency . The processing method of claim 16, wherein the processing and transmitting step further comprises: squaring the in-phase integrated signal and the orthogonal integrated signal separately, and then performing a root mean square calculation of the sum to obtain a solution. Corresponding to the signal strength of the received signal at the frequency corresponding to the digital demodulation step, and then transmitting the signal strength. The processing method of claim 16, wherein the mixing step and the adding step are performed by using an integer. The processing method of claim 20, wherein a set of the in-phase signal and the orthogonal signal are generated every 60 degrees, and the analog-digital conversion step is also performed every 60 degrees. One sample. For example, in the processing method of claim 21, the sinusoidal signal values issued at 30 degrees, 90 degrees, 150 degrees, 210 degrees, 270 degrees, and 330 degrees are 1, 2, 1, -1, respectively. 2. With -1, the cosine signal values are 1, 0, 1, -1, 0, and -1, respectively. The processing method of claim 20, wherein a set of the in-phase signal and the orthogonal signal are generated every 90 degrees, and the analog digital conversion step also performs sampling once every 90 degrees. For example, in the processing method of claim 23, the sinusoidal signal values issued at 45 degrees, 135 degrees, 225 degrees, and 315 degrees are 1, 1, -1, and -1, respectively, and the cosine signal values are respectively 1, -1, -1, and 1. The processing method of claim 16, wherein each of the digit demodulation steps further comprises: calculating a sum of a square of the in-phase integrated signal and a square of the orthogonal integrated signal. The processing method of claim 25, wherein the processing and transmitting step further comprises performing a root mean square calculation on the sum to obtain a signal strength of the signal received by the digital demodulation step at the frequency, and Transmit the signal strength. The processing method of claim 25, wherein the processing and transmitting step further comprises transmitting in-phase and quadrature signal information including the sum to a host, wherein the host performs a root mean square calculation on the sum to obtain The signal strength of the received signal at the frequency corresponding to the digital phase demodulation step corresponding to the in-phase and quadrature signal information is obtained. The processing method of claim 15, wherein the speed of the processing step of the processing and the transmitting step is equivalent to the speed of the transmitting step.