Signal adjustment method, terminal, writing device, and storage medium

Abstract

The present disclosure relates to the technical field of communications, and provides a signal adjustment method, a terminal, a writing device, and a storage medium. The method comprises: obtaining a signal detection value, the signal detection value representing the intensity of interference borne by a terminal; adjusting a real-time reporting point threshold on the basis of the signal detection value; and sending a writing strength adjustment instruction to a writing device, the writing strength adjustment instruction being used for, on the basis of the adjusted real-time reporting point threshold, adjusting a real-time writing amplitude of a writing signal of the writing device. The adjusted real-time writing amplitude can match the adjusted real-time reporting point threshold, so as to reduce the proportion of the occurrence of abnormalities such as broken writing lines or adjustment points, and improve user experience.

Description

Signal adjustment method, terminal, writing device and storage medium

[0001] Cross-references to related publications

[0002] This disclosure claims priority to the Chinese patent application filed with the State Intellectual Property Office on September 28, 2023, with application number CN202311288837.6 and invention name “Signal adjustment method, terminal, writing device and storage medium”. The entire contents of this application are incorporated by reference into this disclosure. Technical Field

[0003] The embodiments of the present disclosure relate to, but are not limited to, the field of communication technologies, and particularly to a signal adjustment method, a terminal, a writing device, and a storage medium. Background Art

[0004] As smart terminals become increasingly popular, more and more smart terminals are equipped with writing devices (such as capacitive pens), allowing users to use the writing devices to perform detailed operations on the display screen of the smart terminal, such as writing or drawing on the display screen using a capacitive stylus.

[0005] However, since writing devices and smart terminals mostly use similar frequencies for communication, signal interference is prone to occur. The interference signal will cause the signal received by the smart terminal to be incomplete, resulting in abnormalities such as broken or skipped writing lines displayed on the display screen of the smart terminal, thereby reducing the user experience.

[0006] Summary of the Invention

[0007] The present disclosure provides a signal adjustment method, a terminal, a writing device, and a storage medium.

[0008] An embodiment of the present disclosure provides a signal adjustment method, which is applied to a terminal. The method includes: obtaining a signal detection value, which represents the interference intensity to which the terminal is subjected; adjusting the real-time reporting threshold according to the signal detection value; and sending a writing intensity adjustment instruction to a writing device, which is used to adjust the real-time writing amplitude of the writing signal of the writing device according to the adjusted real-time reporting threshold.

[0009] An embodiment of the present disclosure provides a signal adjustment method applied to a writing device, the method comprising: obtaining an adjusted real-time point reporting threshold in response to a writing intensity adjustment instruction sent by a terminal; and adjusting the real-time writing amplitude of the writing signal according to the adjusted real-time point reporting threshold.

[0010] An embodiment of the present disclosure provides a terminal, comprising: at least one processor; and a memory storing at least one program. When the at least one program is executed by the at least one processor, the at least one processor implements any one of the signal adjustment methods applied to the terminal in the embodiments of the present disclosure.

[0011] An embodiment of the present disclosure provides a writing device, comprising: at least one processor; and a memory storing at least one program. When the at least one program is executed by the at least one processor, the at least one processor implements any one of the signal adjustment methods applied to the writing device in the embodiments of the present disclosure.

[0012] An embodiment of the present disclosure provides a readable storage medium, which stores a computer program. When the computer program is executed by a processor, any one of the signal adjustment methods in the embodiments of the present disclosure is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic flow chart showing a signal adjustment method according to an embodiment of the present disclosure.

[0014] FIG2 is a schematic flow chart showing a signal adjustment method according to an embodiment of the present disclosure.

[0015] FIG3 shows a block diagram of components of a terminal according to an embodiment of the present disclosure.

[0016] FIG4 is a block diagram showing components of a writing device according to an embodiment of the present disclosure.

[0017] FIG5 shows a block diagram of a signal adjustment system according to an embodiment of the present disclosure.

[0018] FIG6 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the signal adjustment method and apparatus according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other in any manner.

[0020] When using a writing device (for example, a capacitive pen, etc.) to interact with a terminal, protocols such as the Huawei Pen Protocol (HPP), the Microsoft Pen Protocol (MPP), and the Universal Stylus Initiative are used for communication between devices. Writing devices and smart terminals mostly communicate at similar frequencies, which can easily cause signal interference. The interference signal can cause incomplete signals received by the smart terminal, resulting in abnormalities such as broken or jumping points in the writing lines displayed on the display screen of the smart terminal.

[0021] In some related technologies, if interference is determined between a writing device and a terminal, the terminal will send a frequency hopping instruction to the writing device using the original operating frequency band (i.e., the frequency band where the interference occurs) to enable the writing device to update its communication frequency, thereby reducing the interference. However, if the interference intensity increases, the writing device may not receive the frequency hopping instruction in a timely manner, resulting in the continued occurrence of anomalies such as broken writing lines or skipped dots.

[0022] In other related technologies, the impact of interference on communication signals can be reduced by significantly increasing the output signal power of writing devices. However, since most writing devices are small and have limited battery capacity, significantly increasing the output signal power of writing devices will increase power consumption and shorten the use time of writing devices.

[0023] The present disclosure provides a signal adjustment method, a terminal, a writing device, and a storage medium to solve the above problems.

[0024] Figure 1 illustrates a schematic flow chart of a signal adjustment method according to an embodiment of the present disclosure. This signal adjustment method can be applied to a terminal that is written by a writing device, such as a mobile phone or tablet computer with a display screen. As shown in Figure 1, the signal adjustment method according to an embodiment of the present disclosure includes, but is not limited to, the following steps.

[0025] Step S101: Acquire a signal detection value.

[0026] The signal detection value represents the interference intensity to which the terminal is subjected.

[0027] In one exemplary embodiment, the terminal detects a received touch signal to obtain a signal detection value. The touch signal is a signal generated by a display unit in the touch terminal of a writing device. For example, the signal detection value is a capacitance sensing change corresponding to a touch signal received by a display screen of the touch terminal using a capacitive pen.

[0028] In another exemplary embodiment, the terminal detects the writing signal received from the writing device to obtain a signal detection value, which can reflect the interference situation during the communication between the terminal and the writing device.

[0029] Step S102: adjusting the real-time reporting threshold according to the signal detection value.

[0030] The real-time reporting threshold can be randomly adjusted based on the change of the signal detection value so that the adjusted real-time reporting threshold is greater than the signal detection value, thereby reducing the influence of interference on the writing effect.

[0031] The signal detection value can also be matched based on a plurality of preset reporting thresholds of different sizes, and the preset reporting threshold obtained by matching is used as the adjusted real-time reporting threshold, so that the adjustment of the reporting threshold can be more accurate.

[0032] Step S103: Send a writing intensity adjustment instruction to the writing device.

[0033] The writing intensity adjustment instruction is used to adjust the real-time writing amplitude of the writing signal of the writing device according to the adjusted real-time reporting threshold.

[0034] In this embodiment, by obtaining a signal detection value, which represents the intensity of the interference, it is convenient to understand the interference situation between the writing device and the terminal; the real-time reporting threshold is adjusted according to the signal detection value, so that the adjusted real-time reporting threshold can reduce the occurrence rate of abnormalities caused by interference; then, a writing intensity adjustment instruction is sent to the writing device, and the writing intensity adjustment instruction includes the adjusted real-time reporting threshold, so that the writing device can adjust the real-time writing amplitude of its writing signal in time according to the adjusted real-time reporting threshold, so that the adjusted real-time writing amplitude can match the adjusted real-time reporting threshold, thereby reducing the occurrence rate of abnormalities such as writing line breakage or point adjustment, and improving the user experience.

[0035] In some exemplary embodiments, the signal detection value represents a change value of interference within a preset time period.

[0036] When the interference represented by the signal detection value within the preset time period becomes larger, it can be adjusted by increasing the real-time reporting threshold; when the interference represented by the signal detection value within the preset time period becomes smaller, it can be adjusted by reducing the real-time reporting threshold; so that the adjusted real-time reporting threshold is greater than the signal fluctuation value caused by the interference, thereby reducing the proportion of abnormalities caused by interference.

[0037] In an exemplary embodiment, the preset duration is the duration between two adjacent data frames; the signal detection value is the difference between the received signal strengths of the two adjacent data frames, and the received signal strength is the strength of the writing signal received from the writing device.

[0038] Using the difference in the received signal strength of two adjacent data frames as the signal detection value can reflect the change in interference between the two adjacent data frames, so as to adjust the impact of interference in units of data frames and achieve adjustment with the minimum granularity, so that the adjusted real-time reporting threshold can more accurately cover the interference and reduce the anomalies caused by interference.

[0039] In some exemplary embodiments, adjusting the real-time reporting threshold according to the signal detection value in step S102 can be implemented in the following manner: determining the target interference range corresponding to the signal detection value according to the signal detection value; determining the target reporting threshold based on the mapping relationship between the target interference range and the reporting threshold; and adjusting the real-time reporting threshold to the target reporting threshold.

[0040] The mapping relationship between the target interference range and the reporting threshold is as follows: one target interference range corresponds to one reporting threshold. Once the target interference range is determined, its corresponding target reporting threshold is also determined. In one exemplary embodiment, the signal detection value is matched with a plurality of preset interference ranges of different interference levels to obtain the target interference range corresponding to the signal detection value; and the target reporting threshold corresponding to the target interference range is determined.

[0041] Through multiple preset interference ranges with different interference levels, the real-time reporting threshold of the terminal can be dynamically adjusted in a step-by-step manner to ensure that the terminal can normally receive the writing signal sent by the writing device, thereby displaying the lines and other information corresponding to the writing signal, reducing the occurrence rate of abnormalities such as writing line breakage or point adjustment, and improving the anti-interference ability between the terminal and the writing device; at the same time, it ensures that the power consumption of the writing device will not increase significantly, reduces the energy consumption of the writing device, and improves the user experience.

[0042] In some exemplary embodiments, the target interference range includes at least two preset interference ranges with increasing interference levels, each preset interference range is determined by at least one preset interference threshold; the preset reporting point threshold corresponding to each preset interference range is greater than or equal to the maximum preset interference threshold within the preset interference range.

[0043] In an exemplary embodiment, multiple preset interference ranges include a first preset interference range and a second preset interference range, wherein the first preset interference range is a range determined based on a first preset interference threshold, and the second preset interference range is a range determined based on the first preset interference threshold and the second preset interference threshold; the second preset interference threshold is greater than the first preset interference threshold.

[0044] When the signal detection value is less than the first preset interference threshold, it is determined that the signal detection value is within the first preset interference range, the first preset interference range corresponds to the first preset reporting threshold, and the first preset reporting threshold is greater than or equal to the first preset interference threshold.

[0045] When the signal detection value is greater than or equal to the first preset interference threshold and less than the second preset interference threshold, it is determined that the signal detection value is within the second preset interference range, the second preset interference range corresponds to the second preset reporting threshold, and the second preset reporting threshold is greater than or equal to the second preset interference threshold.

[0046] By adopting the above-mentioned two preset interference ranges, it is possible to ensure that the preset reporting threshold corresponding to each preset interference range is greater than or equal to the maximum preset interference threshold within the preset interference range, so that the interference received by the terminal will not affect the reporting of the capacitive touch screen therein. For example, it can reduce the occurrence rate of abnormalities such as broken writing lines or point adjustments on the capacitive touch screen, thereby improving the user experience.

[0047] In some exemplary embodiments, before executing step S101 of acquiring the signal detection value, the method further includes: determining a real-time reporting threshold based on an initial reporting threshold corresponding to the initial interference range.

[0048] The initial interference range may be a first preset interference range; or may be a range determined based on an initial preset intervention threshold. In this case, the initial preset intervention threshold is smaller than the first preset interference threshold.

[0049] By determining the initial reporting threshold corresponding to the initial interference range, the real reporting threshold of the terminal can be clarified, so that when the real reporting threshold at other moments is obtained subsequently, it can be compared with the initial reporting threshold. In other words, the initial reporting threshold is used as the initial comparison base to clarify whether there is interference at other subsequent moments.

[0050] In some embodiments, the reporting threshold when there is no interference may also be used as the initial reporting threshold, so as to accurately determine the interference conditions at other times.

[0051] Figure 2 shows a flow chart of a signal adjustment method according to an embodiment of the present disclosure. The signal adjustment method can be applied to a writing device for writing on a terminal, such as an electromagnetic pen or a capacitive pen. Among them, the electromagnetic pen supports suspension sensing, which can well confirm the position of the brush; and the electromagnetic pen's refill is small and will not block the screen, and can clearly distinguish between the finger and the pen, thereby preventing the occurrence of accidental touches. The capacitive pen includes an active capacitive pen, which relies on simulating a finger to use current to absorb electrons from the capacitive screen to input a writing signal.

[0052] As shown in FIG2 , the signal adjustment method in the embodiment of the present disclosure includes but is not limited to the following steps.

[0053] Step S201: In response to the writing intensity adjustment instruction sent by the terminal, an adjusted real-time reporting threshold is obtained.

[0054] The writing intensity adjustment instruction includes an adjusted real-time reporting threshold value. The adjusted real-time reporting threshold value can be obtained by performing data analysis on the received writing intensity adjustment instruction.

[0055] Step S202: adjusting the real-time writing amplitude of the writing signal according to the adjusted real-time reporting threshold.

[0056] In some embodiments, adjusting the real-time writing amplitude of the writing signal based on the adjusted real-time reporting threshold in step S202 can be implemented in the following manner: according to the mapping relationship between the writing amplitude and the preset reporting threshold of the terminal, the target writing amplitude is determined based on the adjusted real-time reporting threshold.

[0057] Among them, after determining the adjusted real-time reporting threshold according to the matching relationship between the writing amplitude and the preset reporting threshold of the terminal, the corresponding target writing amplitude is determined based on the adjusted real-time reporting threshold.

[0058] The matching relationship between the writing amplitude and the terminal's preset threshold for reporting a point includes a matching relationship determined based on multiple writing level amplitudes and their corresponding interference levels. The real-time writing amplitude is any one of the multiple writing level amplitudes, and the multiple preset thresholds for reporting a point in the terminal correspond to each writing level amplitude. The interference level may be a level determined based on multiple preset interference ranges.

[0059] In an exemplary embodiment, the plurality of writing grade amplitudes include a first writing grade amplitude and a second writing grade amplitude. Furthermore, the first writing grade amplitude corresponds to a first preset threshold value for reporting points in the terminal, which corresponds to a first preset interference range (e.g., the first preset interference range is a range less than the first preset interference threshold value). Correspondingly, the second writing grade amplitude corresponds to a second preset threshold value for reporting points in the terminal, which corresponds to a second preset interference range (in an exemplary embodiment, the second preset interference range is a range greater than or equal to the first preset interference threshold value and less than the second preset interference threshold value). The second writing grade amplitude is greater than the first writing grade amplitude.

[0060] When the terminal uses the first preset threshold for writing, the writing device uses the first writing level amplitude corresponding to the first preset threshold. If the signal detection value obtained by detection is greater than the first preset interference threshold and less than the second preset interference threshold, the first preset threshold for writing is adjusted to the second preset threshold for writing. Accordingly, the second writing level amplitude is used as the target writing level, and the first writing level amplitude corresponding to the first preset threshold for writing is adjusted to the second writing level amplitude.

[0061] Furthermore, if the terminal uses the second preset threshold for signal detection and the writing device uses the second writing level amplitude, the signal detection value obtained through real-time detection decreases. In one exemplary embodiment, when the signal detection value decreases to below the first preset interference threshold, the second preset threshold for signal detection currently used by the terminal needs to be lowered to the first preset threshold for signal detection. Accordingly, the first writing level amplitude is used as the target writing level amplitude, and the second writing level amplitude corresponding to the second preset threshold for signal detection is adjusted to the first writing level amplitude.

[0062] By matching the adjusted real-time reporting threshold with the matching relationship between the real-time writing amplitude and the preset reporting threshold of the terminal, the real-time attribute amplitude can be dynamically adjusted to the target writing amplitude in real time, so that the target writing amplitude can match the real-time reporting threshold of the terminal, thereby eliminating the impact of interference on writing and improving the user experience.

[0063] In this embodiment, by performing data analysis on the received writing intensity adjustment instruction, the adjusted real-time reporting threshold can be obtained, so as to understand the degree of adjustment of the real-time reporting threshold by the terminal based on the signal detection value obtained, so that the writing device can adjust the real-time writing amplitude of the writing signal based on the adjusted real-time reporting threshold, so that the real-time writing amplitude can match the adjusted real-time reporting threshold, reduce the occurrence rate of abnormalities such as writing line breaks or point adjustments caused by interference, and improve the user experience.

[0064] In some exemplary embodiments, before executing step S201 of obtaining the adjusted real-time reporting threshold in response to the writing intensity adjustment instruction sent by the terminal, the method further includes: sending a writing signal to the terminal.

[0065] The writing signal carries at least one of the following information: identification information of the writing device, writing pressure information of the writing device on the terminal, writing angle information of the writing device relative to the terminal, and real-time writing amplitude.

[0066] By sending a writing signal to the terminal, the terminal is informed of the identification information of the writing device with which it is communicating and interacting (e.g., the device number and device name of the writing device), thereby enabling the terminal to communicate effectively and quickly with the writing device. Furthermore, by sending the writing pressure information of the writing device on the terminal (e.g., the real-time pressure and intensity of the writing device on the terminal's display screen) and the writing angle information of the writing device relative to the terminal (e.g., the horizontal angle between the writing device's pen tip and the terminal's display screen), the terminal can more accurately determine the writing status of the writing device and improve the accuracy of acquiring writing signals.

[0067] The following describes in detail devices according to embodiments of the present disclosure, in conjunction with the accompanying drawings. Figure 3 shows a block diagram of a terminal according to an embodiment of the present disclosure. As shown in Figure 3, terminal 300 includes: at least one processor 301; and a memory 302 storing at least one program. When the at least one program is executed by the at least one processor 301, the at least one processor 301 implements any one of the signal adjustment methods for the terminal according to the embodiments of the present disclosure.

[0068] In an exemplary embodiment, the processor 301 can be configured to perform the following operations: obtain a signal detection value, the signal detection value represents the interference intensity to the terminal; adjust the real-time reporting threshold according to the signal detection value; send a writing intensity adjustment instruction to the writing device, the writing intensity adjustment instruction is used to adjust the real-time writing amplitude of the writing signal of the writing device according to the adjusted real-time reporting threshold.

[0069] According to the terminal of the embodiment of the present disclosure, a signal detection value is obtained through the processor 301, and the signal detection value represents the intensity of the interference, which is convenient for understanding the interference situation between the writing device and the terminal; the real-time reporting threshold is adjusted according to the signal detection value, so that the adjusted real-time reporting threshold can reduce the occurrence rate of abnormalities caused by interference; then, a writing intensity adjustment instruction is sent to the writing device, and the writing intensity adjustment instruction includes the adjusted real-time reporting threshold, so that the writing device can adjust the real-time writing amplitude of its writing signal in time according to the adjusted real-time reporting threshold, so that the adjusted real-time writing amplitude can match the adjusted real-time reporting threshold, thereby reducing the occurrence rate of abnormalities such as writing line breakage or point adjustment, and improving the user experience.

[0070] Figure 4 shows a block diagram of a writing device according to an embodiment of the present disclosure. As shown in Figure 4 , the writing device 400 includes: at least one processor 401; and a memory 402 storing at least one program. When the at least one program is executed by the at least one processor 401, the at least one processor 401 implements any of the signal adjustment methods for a writing device according to the embodiments of the present disclosure.

[0071] In an exemplary embodiment, the processor 401 may be configured to perform the following operations: in response to a writing intensity adjustment instruction sent by the terminal, obtain an adjusted real-time reporting threshold; and adjust the real-time writing amplitude of the writing signal according to the adjusted real-time reporting threshold.

[0072] According to the writing device of the embodiment of the present disclosure, the processor 401 performs data analysis on the received writing intensity adjustment instruction, and obtains the adjusted real-time reporting threshold value, so as to understand the degree of adjustment of the real-time reporting threshold value by the terminal based on the signal detection value obtained, so that the writing device can adjust the real-time writing amplitude of the writing signal based on the adjusted real-time reporting threshold value, so that the real-time writing amplitude can match the adjusted real-time reporting threshold value, reduce the occurrence rate of abnormalities such as writing line breaks or point adjustments caused by interference, and improve the user experience.

[0073] FIG5 shows a block diagram of a signal adjustment system according to an embodiment of the present disclosure. As shown in FIG5 , the signal adjustment system includes but is not limited to the following devices: a terminal 510 and a capacitive stylus 520 .

[0074] The terminal 510 includes a terminal writing receiving module 511 , a terminal wireless communication module 512 and a terminal processor 513 ; the capacitive pen 520 includes a capacitive pen writing transmitting module 521 , a capacitive pen wireless communication module 522 and a capacitive pen processor 523 .

[0075] The writing signal sent by the capacitive pen writing transmitting module 521 is received by the terminal writing receiving module 511; after the terminal writing receiving module 511 processes the received writing signal (for example, message parsing, etc.), the terminal writing receiving module 511 will send the processed information to the terminal processor 513 so that the terminal processor 513 can further process the processed information (for example, convert the writing information into information that can be recognized by the terminal display screen, etc.).

[0076] Furthermore, the terminal processor 513 needs to communicate and interact with the capacitive pen wireless communication module 522 through the terminal wireless communication module 512, so that the capacitive pen 520 can synchronously obtain the real-time point reporting threshold adjusted by the terminal processor 513. The real-time point reporting threshold is the threshold value obtained by the terminal processor 513 adjusting its own real-time point reporting threshold based on the obtained signal detection value. The capacitive pen wireless communication module 522 then forwards the obtained adjusted real-time point reporting threshold to the capacitive pen processor 523, so that the capacitive pen processor 523 can adjust the real-time writing amplitude of the writing signal sent by the terminal writing receiving module 511 based on the adjusted real-time point reporting threshold.

[0077] Among them, the writing signal carries at least one of the following information: identification information of the writing device (i.e., the capacitive pen 520), writing pressure information of the capacitive pen 520 acting on the terminal 510, writing angle information of the capacitive pen 520 relative to the terminal 510, and real-time writing amplitude.

[0078] It should be noted that the signal detection value represents the interference intensity with the writing device, where the interference may include display screen interference, charger common mode interference, or interference frequency generated by external devices (such as fluorescent lamps or other electrical equipment, etc.), or the interference intensity caused by the communication frequency used by the terminal 510 and the communication frequency used by the capacitive pen 520 being similar.

[0079] In some embodiments, the capacitive pen wireless communication module 522 and / or the terminal wireless communication module 512 can use any of the following short-range wireless communication technologies to communicate with other models: Bluetooth communication technology, Wireless Fidelity (WIFI) communication technology, Near Field Communication (NFC) technology, Radio Frequency IDentification (RFID) technology, and ZigBee communication technology.

[0080] Preferably, the capacitive pen wireless communication module 522 and the terminal wireless communication module 512 communicate with each other using Bluetooth communication technology, which can reduce communication costs and improve the versatility of the technology.

[0081] In some embodiments, the terminal 510 may further include a capacitive touch screen (not shown in the figure). The following method may be used to detect interference between the terminal 510 and the capacitive stylus 520 to obtain a signal detection value:

[0082] When the capacitive pen 520 contacts the capacitive touch screen in the terminal 510, the terminal processor 513 in the terminal 510 can detect the capacitance sensing value of the capacitive touch screen to obtain a signal detection value. In an exemplary embodiment, the rows and columns of the capacitive touch screen are scanned and sampled based on the touch chip in the capacitive touch screen to obtain the capacitance sensing value (for example, set as rawdata); then, the change in rawdata (for example, set as diff) is used as the signal detection value. When diff is greater than the preset reporting point threshold, the position coordinates of the reporting point are transmitted to the terminal processor 513, so that the terminal processor 513 generates a reporting point at the corresponding position of the capacitive touch screen (for example, a position corresponding to the position coordinates of the reporting point).

[0083] It should be noted that, when the signal detection value obtained by detection is larger, it indicates that the interference between the capacitive pen 520 and the terminal 510 is larger, and the impact on the accuracy of the reported point position displayed on the capacitive touch screen is also greater.

[0084] In an exemplary embodiment, the capacitive pen writing transmitting module 521 uses the difference in the received signal strength of two adjacent data frames sent by the capacitive pen writing transmitting module 521 as a signal detection value. When the signal detection value is greater than a preset interference threshold, it can be determined that there is interference between the capacitive pen 520 and the terminal 510. At this time, the capacitive pen writing transmitting module 521 will send the signal detection value obtained by the detection to the terminal processor 513, so that the terminal processor 513 adjusts the real-time reporting threshold based on the signal detection value.

[0085] In some embodiments, two preset interference ranges with increasing signal detection values ​​and interference levels are matched to obtain a target interference range corresponding to the signal detection value; a target reporting threshold corresponding to the target interference range is determined; and the real-time reporting threshold is adjusted to the target reporting threshold.

[0086] In an exemplary embodiment, the two preset interference ranges are ranges determined based on two stepped preset interference thresholds (in an exemplary embodiment, a first preset interference threshold and a second preset interference threshold, and the second preset interference threshold is greater than the first preset interference threshold).

[0087] When the signal detection value is less than the first preset interference threshold, the signal detection value is determined to be within the first preset interference range, the first preset interference range corresponds to the first preset reporting threshold, and the first preset reporting threshold is greater than or equal to the first preset interference threshold. When the signal detection value is greater than or equal to the first preset interference threshold and the signal detection value is less than the second preset interference threshold, the signal detection value is determined to be within the second preset interference range, the second preset interference range corresponds to the second preset reporting threshold, and the second preset reporting threshold is greater than or equal to the second preset interference threshold.

[0088] By adopting the above-mentioned two preset interference ranges, it is possible to ensure that the preset reporting threshold corresponding to each preset interference range is greater than or equal to the maximum preset interference threshold within the preset interference range, so that the interference received by the terminal 510 will not affect the reporting of the capacitive touch screen therein. For example, it can reduce the occurrence rate of abnormalities such as broken writing lines or point adjustments on the capacitive touch screen, thereby improving the user experience.

[0089] Correspondingly, when the preset reporting threshold of the terminal 510 changes, the real-time writing amplitude of the writing signal of the capacitive pen 520 needs to be updated synchronously; after the capacitive pen processor 523 receives the adjusted real-time reporting threshold obtained by the capacitive pen wireless communication module 522, the capacitive pen processor 523 will determine the adjusted real-time reporting threshold based on the matching relationship between the real-time writing amplitude and the preset reporting threshold of the terminal 510, and determine the corresponding target writing amplitude based on the adjusted real-time reporting threshold.

[0090] The matching relationship between the real-time writing amplitude and the preset threshold value for reporting a point in terminal 510 includes a matching relationship determined based on multiple writing level amplitudes and their corresponding interference levels. The real-time writing amplitude is any one of the multiple writing level amplitudes, and the multiple preset threshold values ​​for reporting a point in terminal 510 each correspond to a writing level amplitude.

[0091] In an exemplary embodiment, the plurality of writing grade amplitudes include a first writing grade amplitude and a second writing grade amplitude. Furthermore, the first writing grade amplitude corresponds to a first preset threshold value for reporting a point in terminal 510, which corresponds to a first preset interference range. Correspondingly, the second writing grade amplitude corresponds to a second preset threshold value for reporting a point in terminal 510, which corresponds to a second preset interference range. The second writing grade amplitude is greater than the first writing grade amplitude.

[0092] When the terminal 510 uses the first preset point reporting threshold, the capacitive pen 520 uses the first writing level amplitude corresponding to the first preset point reporting threshold; if the signal detection value obtained by detection is greater than the first preset interference threshold within the first preset range, and the signal detection value is less than the second preset interference threshold, then the first preset point reporting threshold used by the terminal 510 needs to be adjusted to the second preset point reporting threshold.

[0093] In one exemplary embodiment, the terminal wireless communication module 512 sends a preset signal "1" to the capacitive pen wireless communication module 522 to indicate that the capacitive pen 520 needs to increase the real-time writing amplitude of its writing signal. When the capacitive pen wireless communication module 522 receives the preset signal "1," it feeds the preset signal "1" back to the capacitive pen processor 523, causing the capacitive pen processor 523 to increase the real-time writing amplitude of the writing signal output by the capacitive pen writing transmitting module 521 to a second writing level amplitude.

[0094] Furthermore, if the terminal 510 uses the second preset threshold for reporting points and the capacitive pen uses the second writing level amplitude, the signal detection value obtained through real-time detection decreases. In an exemplary embodiment, when the signal detection value decreases to less than the first preset interference threshold, it is necessary to reduce the second preset threshold for reporting points currently used by the terminal 510 to the first preset threshold for reporting points. Correspondingly, when the terminal 510 sends its adjusted first preset threshold for reporting points to the capacitive pen wireless communication module 522 via the terminal wireless communication module 512 (for example, the terminal wireless communication module 512 sends a preset signal "0" to the capacitive pen wireless communication module 522 to indicate that the real-time writing amplitude of the writing signal of the capacitive pen 520 needs to be reduced), the capacitive pen wireless communication module 522 feeds the preset signal "0" back to the capacitive pen processor 523, so that the capacitive pen processor 523 reduces the real-time writing amplitude of the writing signal output by the capacitive pen writing transmitting module 521 from the second writing level amplitude to the first writing level amplitude.

[0095] In other optional embodiments, multiple preset interference ranges may be set, each corresponding to a different preset interference threshold. For example, Table 1 shows the correspondence between multiple different levels of preset reporting thresholds of the terminal and the writing level amplitude used by the capacitive stylus.

[0096] Table 1 Correspondence between multiple preset threshold values ​​of different levels of the terminal and the writing level amplitude of the capacitive pen

[0097] The preset interference thresholds may be thresholds determined based on signal detection values ​​obtained from historical detections.

[0098] Through the above-mentioned multiple different levels of preset reporting thresholds, the preset reporting threshold of the terminal and the writing level amplitude of the capacitive pen can be dynamically adjusted in a step-by-step manner, ensuring that the capacitive touch screen of the terminal 510 can normally display the lines and other information corresponding to the writing signal sent by the capacitive pen 520, reducing the occurrence rate of abnormalities such as writing line breakage or point adjustment, and improving the anti-interference between the terminal 510 and the capacitive pen 520; at the same time, it ensures that the power consumption of the capacitive pen 520 will not increase significantly, reducing the energy consumption of the capacitive pen 520, and improving the user experience.

[0099] It should be understood that the present disclosure is not limited to the specific configurations and processes described in the above embodiments and illustrated in the figures. For the sake of convenience and brevity, detailed descriptions of known methods are omitted here. The specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0100] FIG6 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the signal adjustment method and apparatus according to an embodiment of the present disclosure.

[0101] As shown in Figure 6, computing device 600 includes an input device 601, an input interface 602, a central processing unit 603, a memory 604, an output interface 605, and an output device 606. The input interface 602, the central processing unit 603, the memory 604, and the output interface 605 are interconnected via a bus 607. The input device 601 and the output device 606 are connected to the bus 607 via the input interface 602 and the output interface 605, respectively, and are further connected to other components of the computing device 600.

[0102] Specifically, the input device 601 receives input information from the outside and transmits the input information to the central processing unit 603 through the input interface 602; the central processing unit 603 processes the input information based on the computer-executable instructions stored in the memory 604 to generate output information, stores the output information temporarily or permanently in the memory 604, and then transmits the output information to the output device 606 through the output interface 605; the output device 606 outputs the output information to the outside of the computing device 600 for user use.

[0103] In one embodiment, the computing device shown in FIG6 may be implemented as an electronic device, which may include: a memory configured to store a program; and a processor configured to run the program stored in the memory to execute the signal adjustment method described in the above embodiment.

[0104] In one embodiment, the computing device shown in Figure 6 can be implemented as a signal adjustment system, which may include: a memory configured to store a program; and a processor configured to run the program stored in the memory to execute the signal adjustment method described in the above embodiment.

[0105] The foregoing is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. Generally speaking, various embodiments of the present disclosure can be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present disclosure is not limited thereto.

[0106] Embodiments of the present disclosure may be implemented by a processor executing computer program instructions, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0107] The block diagram of any logic flow in the drawings of the present disclosure may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions. The computer program may be stored on a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital versatile discs DVD or CD optical discs), etc. Computer-readable media may include non-transient storage media. The processor may be of any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FPGA) and a processor based on a multi-core processor architecture.

[0108] The foregoing detailed description of exemplary embodiments of the present disclosure has been provided by way of exemplary and non-limiting examples. However, various modifications and adaptations to the above embodiments will be apparent to those skilled in the art, when considered in conjunction with the accompanying drawings and the appended claims, without departing from the scope of the present disclosure. Therefore, the proper scope of the present disclosure will be determined by reference to the appended claims.

Claims

1. A signal adjustment method, applied to a terminal, the method comprising: Acquire a signal detection value, where the signal detection value represents the interference intensity to which the terminal is subjected; Adjust the real-time reporting threshold according to the signal detection value; A writing intensity adjustment instruction is sent to the writing device, wherein the writing intensity adjustment instruction is used to adjust the real-time writing amplitude of the writing signal of the writing device according to the adjusted real-time reporting threshold.

2. The method according to claim 1, wherein: The signal detection value represents a change value of interference within a preset time period.

3. The method according to claim 2, wherein: The signal detection value is the difference between the received signal strengths of two adjacent data frames, and the received signal strength is the strength of the received writing signal sent by the writing device.

4. The method according to claim 1, wherein: The step of adjusting the real-time reporting threshold according to the signal detection value comprises: Determine a target interference range corresponding to the signal detection value according to the signal detection value; Determine the target reporting threshold based on the mapping relationship between the target interference range and the reporting threshold; The real-time reporting point threshold is adjusted to the target reporting point threshold.

5. The method according to claim 4, wherein: The target interference range includes: at least two preset interference ranges with successively increasing interference degrees, each of the preset interference ranges is determined by at least one preset interference threshold, and the preset reporting point threshold corresponding to each of the preset interference ranges is greater than or equal to the maximum preset interference threshold within the preset interference range.

6. A signal adjustment method, applied to a writing device, the method comprising: In response to the writing intensity adjustment instruction sent by the terminal, obtaining the adjusted real-time reporting threshold; The real-time writing amplitude of the writing signal is adjusted according to the adjusted real-time reporting threshold.

7. The method according to claim 6, wherein: The step of adjusting the real-time writing amplitude of the writing signal according to the adjusted real-time reporting threshold value comprises: According to the mapping relationship between the writing amplitude and the preset reporting threshold of the terminal, the target writing amplitude is determined based on the adjusted real-time reporting threshold.

8. A terminal, comprising: at least one processor; A memory having at least one program stored thereon, wherein when the at least one program is executed by the at least one processor, the at least one processor implements the signal adjustment method as claimed in any one of claims 1 to 5.

9. A writing device comprising: at least one processor; A memory having at least one program stored thereon, wherein when the at least one program is executed by the at least one processor, the at least one processor implements the signal adjustment method as claimed in any one of claims 6 to 7.

10. A readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the signal adjustment method according to any one of claims 1 to 5, or the signal adjustment method according to any one of claims 6 to 7.

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