CN111352530A

CN111352530A - Method and device for adjusting threshold range of capacitor key signal and terminal equipment

Info

Publication number: CN111352530A
Application number: CN202010122386.9A
Authority: CN
Inventors: 姚坤
Original assignee: Realme Chongqing Mobile Communications Co Ltd
Current assignee: Realme Chongqing Mobile Communications Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-06-30
Anticipated expiration: 2040-02-26
Also published as: CN111352530B

Abstract

The invention provides a method for adjusting a signal threshold range of a capacitor key, which is applied to a terminal device with a capacitor key, and comprises the following steps: responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key; generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitor key to the target signal threshold range. The invention also provides the terminal equipment. The invention can obtain the signal threshold range matched with the current state of the capacitor key, so that the adjusted signal threshold range is more consistent with the current state of the capacitor key.

Description

Method and device for adjusting threshold range of capacitor key signal and terminal equipment

Technical Field

The present invention relates to a method for configuring a key, and more particularly, to a method for adjusting a signal threshold range of a capacitive key and a terminal device using the same.

Background

At present, in order to meet the requirements of people, products of various families in the mobile phone terminal market have one or more core selling points, such as photographing, endurance, double screens, game performance and the like. And the game is in the direction of power of various manufacturers, and for the game mobile phone for the main game playing, the capacitive keys are basically standard configuration of the game mobile phone due to the characteristics of the response rapidity and the like of the capacitive keys.

However, due to the device structure of the capacitor key, after aging in a period of use, due to aging of the adhesive, accuracy of factory lamination, a gap caused by deformation of the falling shell, and the like, all affect signal transmission of the capacitor key, and then cause reduction of key accuracy. In the current solution of the chip manufacturer of the capacitive keys, the interrupt signal threshold of the capacitive keys is hard-coded in the firmware of the chip, and all the user equipments use the same signal control scheme even though the firmware can be updated OTA (on the air). However, because of a lot of devices, the change of the electrical characteristic parameters of the devices is different due to personalized difference factors such as patch production, aging, collision and the like, and the same signal threshold is used for controlling the chip to interrupt the output function, which obviously cannot meet the actual requirements of the devices.

Disclosure of Invention

The invention aims to provide a method for adjusting a threshold range of a capacitance key signal and a terminal device, so as to solve the problems.

In order to solve the above technical problem, in one aspect, a method for adjusting a threshold range of a capacitive key signal is provided, where the method is applied to a terminal device having a capacitive key, and the method includes: responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key; generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

In a second aspect, an apparatus for adjusting a threshold range of a capacitive key signal is provided, where the apparatus includes a signal value generation module, a signal threshold range determination module, and an adjustment module. The signal value generating module is used for responding to touch of a 1/N area of the capacitive key, located on the first side, to generate a first signal value, wherein N is a natural number greater than 1, responding to touch of the whole area of the capacitive key to generate a second signal value, and responding to touch of a 1/N area of the capacitive key, located on the second side, to generate a third signal value. The signal threshold range determination module is configured to determine a target signal threshold range based on the first signal value, the second signal value, and the third signal value. The adjusting module is used for adjusting the signal threshold range of the capacitor key to the target signal threshold range.

In a third aspect, a terminal device is provided, where the terminal device includes a capacitive button, a memory and a processor, where the memory stores program instructions, and the processor is configured to execute a method for adjusting a threshold range of a capacitive button signal after invoking the program instructions, where the method includes: responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key; generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

In a fourth aspect, there is generally provided a computer-readable storage medium having stored thereon program instructions for executing a method for adjusting a threshold range of a capacitance key signal, the method comprising: responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key; generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

In the application, the target signal threshold range is determined by acquiring the signal values generated by touching different areas of the capacitor key, so that the signal threshold range matched with the current condition of the capacitor key can be obtained, and the adjusted signal threshold range is more consistent with the current state of the capacitor key.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart illustrating a method for adjusting a threshold range of a capacitive key signal according to an embodiment of the present disclosure.

Fig. 2 is a sampling lattice diagram in an embodiment of the present application.

Fig. 3 is a flowchart of a method for adjusting a threshold range of a capacitive key signal according to another embodiment of the present disclosure.

Fig. 4 is a block diagram of an apparatus for adjusting a threshold range of a capacitive key signal according to an embodiment of the present disclosure.

Fig. 5 is a block diagram of a terminal device in an embodiment of the present application.

Fig. 6 is a schematic plan view of a terminal device in an embodiment of the present application.

Fig. 7 is a schematic diagram illustrating data interaction between a processor and a capacitive button according to an embodiment of the application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is to be understood that the terminology used in the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The method for adjusting the threshold range of the capacitance key signal can be applied to any terminal equipment with a capacitance key.

Please refer to fig. 1, which is a flowchart illustrating a method for adjusting a threshold range of a capacitive key signal according to an embodiment of the present application. The adjusting method is applied to a terminal device, and the terminal device comprises a capacitor key. The execution sequence of the steps of the adjusting method is not limited to the execution sequence in fig. 1. As shown in fig. 1, the application control method may include the steps of:

s101: and generating a first signal value in response to the touch of a 1/N area of the capacitive key, wherein N is a natural number greater than 1.

Wherein, N can be natural numbers such as 2, 3, 4, etc., and in a preferred embodiment, N is 3.

Wherein, the 1/N area of the capacitor key positioned on the first side refers to: the capacitor key is located in a 1/N area of the first side, which occupies the whole area of the capacitor key.

S102: a second signal value is generated in response to a touch of the entire area of the capacitive key.

S103: and generating a third signal value in response to the touch of the 1/N area of the capacitive key positioned on the second side.

Wherein, the 1/N area of the capacitor key positioned at the second side refers to: the area of the capacitor key, which is located on the second side and occupies 1/N of the whole area of the capacitor key, is provided.

In some embodiments, the second side is the side opposite the first side, e.g., the capacitive key is substantially square or oval, and the first and second sides are the sides, e.g., the left and right sides, of the capacitive key on which the two opposing parallel sides are located.

In other embodiments, the second side may also be a side adjacent to the first side, for example, the capacitive key is substantially square or oval, and the first side and the second side may be two sides where adjacent sides of the capacitive key are located.

S104: a target signal threshold range is determined from the first signal value, the second signal value, and the third signal value.

S105: and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

Therefore, in the application, the target signal threshold range is determined by acquiring the signal values generated by touching different areas of the capacitive button, so that the signal threshold range matched with the current state of the capacitive button can be obtained, and the adjusted signal threshold range is more consistent with the current state of the capacitive button. Namely, the individual differences of the capacitor keys caused by production, aging, collision and the like are matched.

In some embodiments, the step S105 may include: in engineering mode by I²And C, writing the target signal threshold range into the chip of the capacitor key by the bus, and restarting the chip of the capacitor key, so that the signal threshold range of the capacitor key is adjusted to the target signal threshold range.

The signal threshold range of the capacitive button refers to that when a signal value generated by a user touching the capacitive button falls into the signal threshold range, an interrupt is generated by a chip of the capacitive button, the interrupt is sent to a processor of the electronic device through a general purpose Input/Output (GPIO), and the processor determines a touch event according to corresponding driving logic.

Wherein, in some embodiments, the step S104 "determining the target signal threshold range according to the first signal value, the second signal value and the third signal value" includes: determining a minimum signal threshold value according to the first signal value and the third signal value; determining a maximum signal threshold value from the second signal value; determining a range between a minimum signal threshold and a maximum signal threshold as the target signal threshold range.

Further, the "determining a minimum signal threshold value according to the first signal value and the third signal value" includes: and calculating the average value of the first signal value and the third signal value, and determining the average value of the first signal value and the third signal value as the minimum signal threshold value.

Wherein an average of the first signal value and the third signal value may be an arithmetic average or a geometric average. In some embodiments, the average of the first signal value and the third signal value is the minimum signal threshold value in the target signal threshold range.

In still other embodiments, the "determining a minimum signal threshold from the first signal value and a third signal value" includes: determining a minimum value of the first signal value and the third signal value, and determining the minimum value of the first signal value and the third signal value as the minimum signal threshold. That is, in other embodiments, the first signal value is determined to be the minimum signal threshold if the first signal value is less than a third signal value, and the third signal value is determined to be the minimum signal threshold if the third signal value is less than the first signal value.

Further, the determining a maximum signal threshold according to the second signal value includes: determining the second signal value as the maximum signal threshold. That is, in some embodiments, the second signal value is the largest signal threshold value in the target signal threshold range.

The execution sequence of steps S101, S102, and S103 is not limited to the execution sequence in fig. 1, and for example, the second signal value may be generated in response to the touch on the entire area of the capacitive key, and then the first signal value may be generated in response to the touch on the 1/N area of the capacitive key located on the first side.

In one embodiment, the steps S101 to S103 may be executed repeatedly, for example, 4 times, 5 times, etc., to obtain a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values.

In another embodiment, the S101 may specifically include: a plurality of first signal values are generated in response to a plurality of touches to a 1/N area of the capacitive key on the first side. The S102 may specifically include: a plurality of second signal values are generated in response to the pre-multi-touch of the entire area of the capacitive key. The S103 may specifically include: and generating a plurality of third signal values in response to a plurality of touches to the 1/N area of the capacitive key on the second side. Wherein the multiple touches may be 4, 5, 10, etc.

That is, in some embodiments, the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values may be obtained by circularly obtaining the first signal value, the second signal value, and the third signal value, or after obtaining the plurality of first signal values, the plurality of second signal values may be obtained, and then the plurality of third signal values may be obtained.

In an embodiment, when obtaining a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values, the "determining a minimum signal threshold according to the first signal values and the third signal values" may include: calculating an average value of the plurality of first signal values and the plurality of third signal values, determining the average value as the minimum signal threshold, or determining a minimum value of the plurality of first signal values and the plurality of third signal values, and then determining a minimum value of the plurality of first signal values and the plurality of third signal values as the minimum signal threshold.

In an embodiment, when obtaining a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values, the "determining a maximum signal threshold according to the second signal values" may include: calculating an average value of a plurality of second signal values, and determining the average value of the plurality of second signal values as the maximum signal threshold value; alternatively, a maximum value of the plurality of second signal values is determined, and then the maximum value of the plurality of second signal values is determined as the maximum signal threshold.

Please refer to fig. 2, which is a sampling lattice diagram according to an embodiment of the present application. As shown in fig. 2, the sampling bitmap includes a plurality of first signal values S1, a plurality of second signal values S2, and a plurality of third signal values S3.

As shown in fig. 2, the target signal threshold range may be a range from a minimum value of the plurality of first signal values and the plurality of third signal values to a maximum value of the plurality of second signal values in the block of fig. 2.

For example, if the minimum value of the first signal values and the third signal values is 50, and the maximum value of the second signal values is 260, the target signal threshold range is 50-260. It should be noted that, four first signal values S1, four second signal values S2, and four third signal values S3 are illustrated in fig. 2, it is obvious that the number of the plurality of first signal values S1, the plurality of second signal values S2, and the plurality of third signal values S3 may be other numbers, and the number of the plurality of first signal values S1, the plurality of second signal values S2, and the plurality of third signal values S3 may be equal or unequal.

In some embodiments, the method further comprises the steps of: a sampled bitmap including a plurality of first signal values S1, a plurality of second signal values S2, and a plurality of third signal values S3 is output.

Obviously, the method may also further include generating the sampling bitmap according to the plurality of first signal values S1, the plurality of second signal values S2, and the plurality of third signal values S3. As shown in fig. 2, the sampling point map includes an abscissa and an ordinate, the ordinate is the magnitude of the signal value, and the abscissa is different types of signal values generated by the touch corresponding to different areas.

The step S104 "determining the target signal threshold range according to the first signal value, the second signal value and the third signal value" may further include: and determining the target signal threshold range in response to the selection operation of the sampling dot matrix diagram by the user.

Wherein the terminal device further includes a display screen, and outputting a sample bitmap including a plurality of first signal values S1, a plurality of second signal values S2, and a plurality of third signal values S3 includes: a sample bitmap including a plurality of first signal values S1, a plurality of second signal values S2, and a plurality of third signal values S3 is displayed on a display screen.

The selecting operation may be a framing operation input on the sampling bitmap, and the framing range is the target signal threshold range, and the selecting operation may also include a selecting operation of a maximum signal threshold and a selecting operation of a minimum signal threshold input on the sampling bitmap.

In some embodiments, before the step S101 "generating the first signal value in response to the touch of the 1/N area of the capacitive key located on the first side", the method further includes:

and when the condition that the threshold correction is met is determined, outputting prompt information to prompt a user to touch a 1/N area of the capacitive key, the whole area of the capacitive key and a 1/N area of the capacitive key, which are positioned on the first side, respectively.

The prompt information may be information of characters and/or patterns displayed on the display screen, for example, the prompt information may be character information displayed on the display screen, which is "please touch a 1/N area of the capacitive key located on the first side, the entire area of the capacitive key, and a 1/N area of the capacitive key located on the second side, respectively". The prompt message may also be a voice message.

When a plurality of first signal values, a plurality of second signal values and a plurality of third signal values are to be obtained, the prompt information is used for prompting a user to respectively perform a plurality of times of touch on a 1/N area of the capacitive key, the whole area of the capacitive key and a 1/N area of the capacitive key, the 1/N area being located on the second side of the capacitive key. The multiple touches may be sequentially touching each area and cycling multiple times, or touching the same area multiple times each time.

In some embodiments, the determining that the threshold correction condition is satisfied comprises: when the user selection operation on the correction option is detected or a specific touch gesture is input on a touch screen of the terminal equipment, determining that a threshold correction condition is met.

The specific touch gesture can be an operation with a square touch track formed by the user sliding through four top corners of a display screen of the terminal device in sequence, and the like.

In some embodiments, the method further comprises: generating a fourth signal value in response to a touch to an edge of the capacitive key on the first side that does not contact the capacitive key; and generating a fifth signal value in response to a touch of an edge of the capacitive key on the second side that does not contact the capacitive key.

Wherein, the step S104 "determining the target signal threshold range according to the first signal value, the second signal value and the third signal value" includes: a target signal threshold range is determined from the first signal value, the second signal value, the third signal value, the fourth signal value, and the fifth signal value.

That is, in some embodiments, the target signal threshold range may also be derived from the first signal value, the second signal value, the third signal value, the fourth signal value, and the fifth signal value.

For example, the second signal value is determined as the largest signal threshold value in the target signal threshold range, and the average value of the first signal value, the third signal value, the fourth signal value, and the fifth signal value is determined as the smallest signal threshold value in the target signal threshold range, thereby obtaining the target signal threshold range.

Please refer to fig. 3, which is a flowchart illustrating a method for adjusting a threshold range of a capacitive key signal according to another embodiment of the present application.

S301: and generating a plurality of first signal values in response to touching a 1/N area of the capacitive key, wherein N is a natural number greater than 1.

S302: a plurality of second signal values are generated in response to touching the entire area of the capacitive key.

S303: and generating a plurality of third signal values in response to touching the 1/N area of the capacitive key on the second side.

S304: a sampling bitmap including the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values is output according to the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values.

Wherein outputting a sample bitmap including a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values according to the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values may include: and generating a sampling lattice diagram comprising the plurality of first signal values, the plurality of second signal values and the plurality of third signal values according to the plurality of first signal values, the plurality of second signal values and the plurality of third signal values, and outputting the sampling lattice diagram.

S305: and determining the target signal threshold range in response to the selection operation of the sampling dot matrix diagram by the user.

S306: and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

In some embodiments, the step S306 may include: in engineering mode by I²And C, writing the target signal threshold range into the chip of the capacitor key by the bus, and restarting the chip of the capacitor key.

The present embodiment focuses on outputting a sampling bitmap according to a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values, and determining the target signal threshold range according to a selection operation of a user on the sampling bitmap.

Therefore, in the embodiment, the target signal threshold range is determined through the selection operation of the sampling bitmap by the user, and the signal threshold range can be determined according to the preference of the user, so that the method is more humanized and personalized.

For example, the steps S301 to S303 generate a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values, which are respectively obtained by a plurality of touches to the 1/N area of the capacitive key on the first side, a plurality of touches to the entire area of the capacitive key, and a plurality of touches to the 1/N area of the capacitive key on the second side, and thus the first signal values, the second signal values, and the third signal values are obtained. The generating of the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values in steps S301 to S303 may also be respectively obtaining the first signal value, the second signal value, and the third signal value in response to one touch to a 1/N area of the capacitive key located on the first side, one touch to the entire area of the capacitive key, and one touch to a 1/N area of the capacitive key located on the second side, and obtaining the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values by repeatedly touching the three areas.

In any of the embodiments shown in fig. 1 and 3, the generation of each of the first signal value, the second signal value, and the third signal value is specifically: when a user touches a capacitance key, raw data (original data) and base line (base line) are obtained through I2C bus sampling, and corresponding signal values are obtained through calculation according to the raw data and the base line obtained through sampling.

Specifically, each touch of the user, that is, the touch of the 1/N area of the first side of the capacitive button, the touch of the entire area of the capacitive button, or the touch of the 1/N area of the second side of the capacitive button, is performed by sampling four types of data, namely raw data1, raw data0, base line 1, and base line0, and then calculating the corresponding signal value according to the corresponding raw data1, raw data0, base line 1, and base line 0.

For example, step S101 "generating a first signal value in response to touching a 1/N area of the capacitive key located on the first side" may be: and responding to the touch of the 1/N area of the first side of the capacitor key to acquire corresponding raw data1, raw data0, base line 1 and base line0, and calculating according to the acquired corresponding raw data1, raw data0, base line 1 and base line0 to obtain a first signal value.

Specifically, the following first formula can be used:

the Signal value Signal ═ (raw data 1< <8) | raw data 0- (base line 1< <8) | base line0, and the corresponding Signal value is calculated.

Wherein, the word "raw data 1< < 8" means that raw data1 is shifted left by eight bits, "raw data 1< <8) | raw data 0" means that after raw data1 is shifted left by eight bits, raw data1 is regarded as the high eight bit and raw data0 is regarded as the low eight bit to form the first sixteen bit data, and "base line 1< <8) | base line 0" means that after base line 1 is shifted left by eight bits, base line 1 is regarded as the high eight bit and base line0 is regarded as the low eight bit to form the second sixteen bit data. The first formula is to subtract the second sixteen-bit data from the first sixteen-bit data to obtain a signal value.

Please refer to fig. 4, which is a block diagram of an apparatus 100 for adjusting a threshold range of a capacitive key signal. The adjusting apparatus 100 is used for executing the aforementioned method for adjusting the threshold range of the capacitive key signal. The adjusting apparatus 100 includes a signal value generating module 101, a signal threshold range determining module 102, and an adjusting module 103.

The signal value generating module 101 is configured to generate a first signal value in response to a touch on a 1/N area of the capacitive key located on a first side, where N is a natural number greater than 1, generate a second signal value in response to a touch on the entire area of the capacitive key, and generate a third signal value in response to a touch on a 1/N area of the capacitive key located on a second side. The signal threshold range determination module 102 is configured to determine a target signal threshold range according to the first signal value, the second signal value, and the third signal value. The adjusting module is used for adjusting the signal threshold range of the capacitor key to the target signal threshold range.

Wherein, N can be natural numbers such as 2, 3, 4, etc., and in a preferred embodiment, N is 3. Wherein, the 1/N area of the capacitor key positioned on the first side refers to: the capacitor key is located in a 1/N area of the first side, which occupies the whole area of the capacitor key. The 1/N area of the capacitor key positioned on the second side refers to: the area of the capacitor key, which is located on the second side and occupies 1/N of the whole area of the capacitor key, is provided. In some embodiments, the second side is the side opposite the first side, e.g., the capacitive key is substantially square or oval, and the first and second sides are the sides, e.g., the left and right sides, of the capacitive key on which the two opposing parallel sides are located. In other embodiments, the second side may also be a side adjacent to the first side, for example, the capacitive key is substantially square or oval, and the first side and the second side may be two sides where adjacent sides of the capacitive key are located.

In some embodiments, the signal threshold range determining module 102 determines the target signal threshold range according to the first signal value, the second signal value, and the third signal value, specifically including: the signal threshold range determination module 102 determines a minimum signal threshold according to the first signal value and the third signal value, determines a maximum signal threshold according to the second signal value, and determines a range between the minimum signal threshold and the maximum signal threshold as the target signal threshold range.

In some embodiments, the determining the signal threshold range module 102 determines the minimum signal threshold according to the first signal value and the third signal value, specifically including: the signal threshold range determination module 102 calculates an average of the first signal value and the third signal value, and determines that the average of the first signal value and the third signal value is the minimum signal threshold.

The signal threshold range determining module 102 determines a maximum signal threshold according to the second signal value, and specifically includes: the signal threshold range determination module determines the second signal value to be the maximum signal threshold.

As shown in fig. 4, the adjusting apparatus 100 further includes a prompt module 104, where the prompt module 104 is configured to output a prompt message when the threshold correction condition is met, and prompt a user to touch a 1/N area of the capacitive key located on the first side, a whole area of the capacitive key, and a 1/N area of the capacitive key located on the second side.

In some embodiments, the prompt module 104 determines that a threshold correction condition is met and outputs the prompt information when detecting a user selection operation on a correction option or inputting a specific touch gesture on a touch screen of the terminal device.

In some embodiments, the signal value generating module 101 is further configured to generate a fourth signal value in response to a touch of the edge of the capacitive key on the first side without contacting the capacitive key, and generate a fifth signal value in response to a touch of the edge of the capacitive key on the second side without contacting the capacitive key. The signal threshold range determination module 102 is specifically configured to determine a target signal threshold range according to a first signal value, a second signal value, a third signal value, a fourth signal value, and a fifth signal value.

In some embodiments, the signal value generating module 101 is further configured to generate a plurality of first signal values in response to a touch to a 1/N area of the capacitive key located on the first side, where N is a natural number greater than 1, generate a plurality of second signal values in response to a touch to the entire area of the capacitive key, and generate a plurality of third signal values in response to a touch to a 1/N area of the capacitive key located on the second side.

Specifically, the signal value generating module 101 may respectively respond to multiple touches on a 1/N area of the capacitive key located on the first side, multiple touches on the entire area of the capacitive key, and multiple touches on a 1/N area of the capacitive key located on the second side to respectively obtain multiple first signal values, multiple second signal values, and multiple third signal values. Or, the signal value generating module 101 may respectively respond to one touch to a 1/N area of the capacitive key located on the first side, one touch to the entire area of the capacitive key, and one touch to a 1/N area of the capacitive key located on the second side to obtain a first signal value, a second signal value, and a third signal value, and may cycle through multiple touches to the three areas to obtain multiple first signal values, multiple second signal values, and multiple third signal values.

In some embodiments, the signal threshold range determination module 102 is further configured to output a sampling bitmap including a plurality of first signal values, a plurality of second signal values, and a plurality of third signal values according to the plurality of first signal values, the plurality of second signal values, and the plurality of third signal values, and determine the target signal threshold range in response to a user selection operation on the sampling bitmap.

The adjustment module 103 is specifically configured to pass through I in the engineering mode²And writing the target signal threshold range into the capacitor key chip by the C bus, and restarting the capacitor key chip.

The adjusting apparatus 100 is configured to execute the method for adjusting the threshold range of the capacitive key signal, and the more specific functions of each module may refer to the detailed description of each embodiment of the method, which is not repeated herein.

Referring to fig. 5 and fig. 6 together, fig. 5 is a block diagram of a terminal device 200, and fig. 6 is a schematic plan view of the terminal device 200.

As shown in fig. 5, the terminal device 200 includes a capacitive button 20, a memory 21, and a processor 22, where the memory 21 stores program instructions, and the processor 22 is configured to execute the method described in any of the foregoing embodiments after calling the program instructions.

For example, the processor 22 is configured to generate a first signal value in response to a touch on a 1/N area of the capacitive key 20 located on a first side, where N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key 20; generating a third signal value in response to touching a 1/N area of the capacitive key 20 on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitive button 20 to the target signal threshold range.

As shown in fig. 5, the terminal device 200 further includes a display screen 23, where the display screen 23 may be a touch display screen and has touch and display functions. The aforementioned prompt information and the like can be displayed on the display screen 23.

As shown in fig. 6, the capacitive key 20 may be disposed on a side frame K1 of the terminal device 200.

In this embodiment, the number of the capacitive keys 20 may be two, and the two capacitive keys are disposed on the same side frame K1 which is a long side of the terminal device 200 and are respectively close to two short sides of the terminal device 200.

Please refer to fig. 7, which is a schematic diagram illustrating data interaction between the processor 22 and the capacitive button 20. The capacitive button 20 includes a capacitive button chip 201, wherein when the capacitive button 20 receives operations such as touch/press, the aforementioned "touch" in the present application may include both touch and press. The capacitive button chip 201 generates raw data and base line data, and the processor 20 generates the raw data and the base line data through I²C, sampling the bus to obtain raw data and base line data, obtaining a target signal threshold range according to the raw data and the base line data, and passing through I²The C bus writes the target signal threshold range into the capacitor key chip 201, and restarts the capacitor key chip 201 to adjust the signal threshold range of the capacitor key 20. Wherein, as shown by fig. 7, the processor 22 passes through I²The C bus is connected to the INT pin and the RST pin of the capacitive button chip 201. And pass through I²Sampling the C bus and the INT pin to obtain raw data and base line data, and passing through I²The C bus writes the target signal threshold range into the RST pin end of the capacitive button chip 201 and into the capacitive button chip 201.

As for obtaining the target signal threshold range according to raw data and base line data, as described above, the capacitive button chip 201 generates raw data and base line data in response to the touch on the 1/N area of the capacitive button on the first side, the touch on the entire area of the capacitive button, or the touch on the 1/N area of the capacitive button on the second side. The processor 22 passes through I²The C bus samples four types of data, namely raw data1, raw data0, base line 1, and base line0, and the processor 22 may calculate corresponding signal values, namely the first signal value, the second signal value, and the third signal value, according to the raw data1, raw data0, base line 1, and base line0, and then determine the target signal threshold range according to the first signal value, the second signal value, and the third signal value.

The memory 21 may include a high-speed random access memory, and may also include a nonvolatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), a plurality of magnetic disk storage devices, a Flash memory device, or other volatile solid state storage devices.

The Processor 22 is a Central Processing Unit (CPU), and may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like

The terminal according to the embodiment of the present invention may include various handheld devices with wireless communication functions, such as a Mobile phone and a tablet computer, a vehicle-mounted device, a wearable device, a computing device, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), a Mobile Station (MS), and the like. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices.

In some embodiments, the present application further provides a computer-readable storage medium having stored therein program instructions for causing a computer to, when invoked, perform the method of any of the preceding embodiments.

For example: responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1; generating a second signal value in response to a touch of the entire area of the capacitive key; generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side; determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

Reference is made herein to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope hereof. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in differing ways depending upon the particular application or consideration of any number of cost functions associated with operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).

Additionally, as will be appreciated by those skilled in the art, the principles herein may be reflected in a computer program product on a computer readable storage medium preloaded with computer readable program code, i.e., program instructions. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu Ray disks, etc.), flash memory, and/or the like. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including means for implementing the function specified. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified.

The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims

1. A method for adjusting a threshold range of a capacitive key signal, applied to a terminal device having a capacitive key, the method comprising:

responding to touch of a 1/N area of the capacitive key, which is positioned on a first side, to generate a first signal value, wherein N is a natural number greater than 1;

generating a second signal value in response to a touch of the entire area of the capacitive key;

generating a third signal value in response to the touch of the 1/N area of the capacitive key on the second side;

determining a target signal threshold range according to the first signal value, the second signal value and the third signal value; and

and adjusting the signal threshold range of the capacitor key to the target signal threshold range.

2. The terminal device of claim 1, wherein determining the target signal threshold range from the first signal value, the second signal value, and the third signal value comprises:

determining a minimum signal threshold value according to the first signal value and the third signal value;

determining a maximum signal threshold value from the second signal value;

determining a range between a minimum signal threshold and a maximum signal threshold as the target signal threshold range.

3. The terminal device of claim 2, wherein determining a minimum signal threshold from the first signal value and the third signal value comprises:

calculating an average value of the first signal value and the third signal value, and determining the average value of the first signal value and the third signal value as the minimum signal threshold value;

the determining a maximum signal threshold from the second signal value comprises:

determining the second signal value as the maximum signal threshold.

4. The terminal device of claim 1, wherein prior to said generating a first signal value in response to a touch to a 1/N area of said capacitive key on a first side, said method further comprises:

5. The terminal device of claim 4, wherein the determination that a threshold correction condition is satisfied comprises:

when the user selection operation on the correction option is detected or a specific touch gesture is input on a touch screen of the terminal equipment, determining that a threshold correction condition is met.

6. The terminal device of claim 1, wherein the method further comprises:

generating a fourth signal value in response to a touch to an edge of the capacitive key on the first side that does not contact the capacitive key; and

generating a fifth signal value in response to a touch to an edge of the capacitive key on a second side that does not contact the capacitive key;

wherein determining a target signal threshold range from the first signal value, the second signal value, and the third signal value comprises:

a target signal threshold range is determined from the first signal value, the second signal value, the third signal value, the fourth signal value, and the fifth signal value.

7. An apparatus for adjusting threshold range of capacitive key signals, the apparatus comprising:

the signal value generating module is used for responding to touch of a 1/N area of the capacitive key, located on the first side, to generate a first signal value, wherein N is a natural number greater than 1, responding to touch of the whole area of the capacitive key to generate a second signal value, and responding to touch of a 1/N area of the capacitive key, located on the second side, to generate a third signal value;

a signal threshold range determination module for determining a target signal threshold range according to the first signal value, the second signal value, and the third signal value; and

and the adjusting module is used for adjusting the signal threshold range of the capacitor key to the target signal threshold range.

8. The terminal device of claim 7, wherein the signal threshold range determining module determines the target signal threshold range according to the first signal value, the second signal value, and the third signal value, and specifically includes: the signal threshold range determination module determines a minimum signal threshold according to the first signal value and the third signal value, determines a maximum signal threshold according to the second signal value, and determines a range between the minimum signal threshold and the maximum signal threshold as the target signal threshold range.

9. The terminal device of claim 8, wherein the signal threshold range determining module determines the minimum signal threshold according to the first signal value and the third signal value, and specifically includes: the signal threshold range determining module calculates an average value of the first signal value and the third signal value, and determines the average value of the first signal value and the third signal value as the minimum signal threshold;

the signal threshold range determining module determines a maximum signal threshold according to the second signal value, and specifically includes: the signal threshold range determination module determines the second signal value to be the maximum signal threshold.

10. The terminal device of claim 7, wherein the adjusting means further comprises:

and the prompting module is used for outputting prompting information when the threshold correction condition is met, and prompting a user to respectively touch the 1/N area of the capacitive key, the whole area of the capacitive key and the 1/N area of the capacitive key, which are positioned on the first side, on the second side.

11. The terminal device according to claim 10, wherein the prompt module determines that a threshold correction condition is satisfied when detecting a user selection operation on a correction option or inputting a specific touch gesture on a touch screen of the terminal device, and outputs the prompt information.

12. The terminal device of claim 7, wherein the signal value generating module is further configured to generate a fourth signal value in response to a touch of an edge of the capacitive key on the first side without contacting the capacitive key, and generate a fifth signal value in response to a touch of an edge of the capacitive key on the second side without contacting the capacitive key;

the signal threshold range determination module is specifically configured to determine a target signal threshold range according to the first signal value, the second signal value, the third signal value, the fourth signal value, and the fifth signal value.

13. A terminal device, comprising a capacitive button, a memory and a processor, wherein the memory stores program instructions, and the processor is configured to execute the method according to any one of claims 1 to 6 after invoking the program instructions.

14. A computer-readable storage medium, in which program instructions are stored, the program instructions being for causing a computer, when invoked, to perform the method of any one of claims 1 to 6.