CN112068721A - Touch signal response method, device and storage medium - Google Patents

Abstract

The present disclosure relates to a touch signal response method, device and storage medium, which belong to the technical field of touch control. The method includes: when the Hover suppression function is turned on, detecting a touch signal on the display screen; when it is determined that the capacitance difference of the touch signal is not greater than a first response threshold, and continues in the same screen area for at least a first preset When a movement event occurs after a period of time, the Hover suppression function is turned off, and the response is performed according to the second response threshold. When the user's finger hovers over the terminal, it will not pause for a period of time before performing the sliding operation. This method can distinguish between the user wearing gloves and the user's finger hovering over the terminal, avoiding misoperation and ensuring that the user is wearing gloves. can easily control the display screen.

Description

Touch signal response method, device and storage medium

technical field

The present disclosure relates to the technical field of touch control, and in particular, to a touch signal response method, device, and storage medium.

Background technique

Nowadays, the terminal is usually equipped with a capacitive display screen. When the user's finger approaches or touches the display screen, due to the action of the electric field of the human body, the user's finger and the display screen form a coupling capacitance, which causes the capacitance value of the display screen to change. The touch signal on the display screen is displayed, and whether to respond to the touch signal is determined according to the capacitance difference of the touch signal and the preset response threshold.

That is, when the capacitance difference of the touch signal is greater than the response threshold, the terminal responds to the touch signal, thereby realizing the user's control of the display screen. When the capacitance difference of the touch signal is not greater than the response threshold, the terminal ignores the touch signal.

If the terminal is set with a large response threshold, when the user wears gloves to control the display screen, the capacitance difference of the generated touch signal is small, the terminal may not respond to the touch signal, and the operation is inconvenient. If the terminal sets a small response threshold, when the user's finger does not touch the display screen but hovers above the display screen, a touch signal with a capacitance difference greater than the response threshold may also be generated, causing the terminal to respond to the touch signal. cause misoperation. Therefore, there is an urgent need to provide a touch signal response method, which can not only avoid misoperation, but also ensure that the user can still conveniently control the display screen when wearing gloves.

SUMMARY OF THE INVENTION

The present disclosure provides a touch signal response method, a device, and a storage medium, which can provide a touch signal response method, which can avoid misoperation and ensure that a user can still conveniently control a display screen when wearing gloves , the technical solution is as follows:

According to a first aspect of the embodiments of the present disclosure, a method for responding to a touch signal is provided, and the method includes:

In the case where the hovering Hover suppression function is enabled, the touch signal on the display screen is detected, and the Hover suppression function is used for instructing to respond according to the first response threshold;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, the Hover suppression function is turned off, and the Hover suppression function is disabled according to the second response. The second response threshold is smaller than the first response threshold.

In a possible implementation manner, the detecting a touch signal on the display screen includes:

According to the distribution positions of the multiple screen areas in the display screen, each screen area in the display screen is traversed, and the touch signal on the traversed screen area is detected.

In a possible implementation manner, the first preset duration is a product of a preset unit duration and a preset number of times, and the preset unit duration is the result of traversing all screen areas in the display screen within one detection cycle. the length of time required;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turning off the Hover suppression function includes:

Count the number of consecutive touches of each screen area, where the number of consecutive touches of the screen area is the number of times of the detection period of the same touch signal whose capacitance difference is not greater than the first response threshold is continuously detected on the screen area number;

When it is detected that the movement event occurs by a touch signal on any screen area, and the number of consecutive touches corresponding to the touch signal is not less than a preset number of times, the hover suppression function is turned off.

In a possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turn off The Hover suppression functions include:

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least a first preset period of time, and the number of screen areas that the touch signal acts on is not less than When the preset number is used, the Hover suppression function is turned off.

In a possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turn off The Hover suppression functions include:

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least a first preset duration, and the movement distance of the touch signal is not less than a preset When the distance is reached, turn off the Hover suppression function.

According to a second aspect of the embodiments of the present disclosure, a touch signal response device is provided, and the device includes:

a detection module, configured to detect a touch signal on the display screen when the hovering Hover suppression function is enabled, and the Hover suppression function is used to instruct to respond according to the first response threshold;

a closing module, configured to disable the Hover suppression function when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold and a movement event occurs in the same screen area for at least a first preset time period , and respond according to a second response threshold, where the second response threshold is smaller than the first response threshold.

In a possible implementation, the detection module includes:

The detection unit is configured to traverse each screen area in the display screen according to the distribution positions of the plurality of screen areas in the display screen, and detect the touch signal on the traversed screen area.

In a possible implementation manner, the first preset duration is a product of a preset unit duration and a preset number of times, and the preset unit duration is the result of traversing all screen areas in the display screen within one detection cycle. the length of time required;

The closing module includes:

A statistical unit for counting the number of consecutive touches in each screen area, where the number of consecutive touches in the screen area is the same touch with a capacitance difference not greater than the first response threshold continuously detected on the screen area The number of detection cycles of the signal;

A closing unit, configured to disable the Hover suppression function when it is detected that a touch signal occurs on any screen area and the movement event occurs, and the number of consecutive touches corresponding to the touch signal is not less than a preset number of times.

In a possible implementation, the closing module includes:

a first closing unit, configured to generate a movement event after it is determined that the capacitance difference of the touch signal is not greater than the first response threshold and lasts in the same screen area for at least a first preset time period, and the touch signal When the number of active screen areas is not less than the preset number, the Hover suppression function is turned off.

In a possible implementation, the closing module includes:

A second closing unit, configured to generate a movement event after it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and the touch signal lasts for at least a first preset time in the same screen area, and the touch signal When the moving distance is not less than the preset distance, turn off the Hover suppression function.

According to a third aspect of the embodiments of the present disclosure, there is provided a touch signal response device, the device comprising:

processor;

memory for storing processor-executable instructions;

wherein the processor is configured to:

In the case where the hovering Hover suppression function is enabled, the touch signal on the display screen is detected, and the Hover suppression function is used for instructing to respond according to the first response threshold;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, the Hover suppression function is turned off, and the Hover suppression function is disabled according to the second response. The second response threshold is smaller than the first response threshold.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a touch signal response device, which enables the touch signal response device to execute a touch signal response device when an instruction in the storage medium is executed by a processor of the touch signal response device. A touch signal response method, the method comprising:

In the case where the hovering Hover suppression function is enabled, the touch signal on the display screen is detected, and the Hover suppression function is used for instructing to respond according to the first response threshold;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, the Hover suppression function is turned off, and the Hover suppression function is disabled according to the second response. The second response threshold is smaller than the first response threshold.

In the touch signal response method, device, and storage medium provided by the embodiments of the present disclosure, the hover suppression function is used to instruct to respond according to the first response threshold. It is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and when a movement event occurs in the same screen area for at least the first preset time period, it is determined that the user is operating the terminal while wearing gloves at this time, so it is turned off The Hover suppression function responds according to the second response threshold, and the second response threshold is smaller than the first response threshold. The embodiment of the present disclosure fully considers the user's operating habits, that is, the user's finger generally pauses for a period of time when controlling the display screen and then performs the sliding operation, while the user's finger does not pause for a period of time before sliding when hovering over the terminal. Therefore, by detecting the touch signal generated by pausing for a period of time and then performing the sliding operation, it can distinguish between the user wearing gloves and the user's finger hovering over the terminal, avoiding misoperation, and ensuring that the user is wearing gloves. can still easily control the display screen.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a flowchart of a method for responding to a touch signal according to an exemplary embodiment;

FIG. 2 is a flowchart of a method for responding to a touch signal according to an exemplary embodiment;

FIG. 3 is a schematic diagram of a screen area where a touch signal is detected according to an exemplary embodiment;

FIG. 4 is a schematic diagram of an operation flow according to an exemplary embodiment;

FIG. 5 is a block diagram of a touch signal response device according to an exemplary embodiment;

Fig. 6 is a block diagram of a terminal for responding to a touch signal according to an exemplary embodiment.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

FIG. 1 is a flowchart of a method for responding to a touch signal according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 1 , the method includes the following steps:

In step 101, when the Hover suppression function is enabled, a touch signal on the display screen is detected.

The Hover suppression function is used to instruct to respond according to the first response threshold.

In step 102, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turn off the Hover suppression function, according to the second response threshold In response, the second response threshold is less than the first response threshold.

In the method provided by the embodiment of the present disclosure, the Hover suppression function is used to instruct the response according to the first response threshold, when the Hover suppression function is enabled, the touch signal on the display screen is detected, and when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold a response threshold, and when a movement event occurs in the same screen area for at least the first preset duration, it is determined that the user is operating the terminal while wearing gloves, so the Hover suppression function is turned off, and the response is performed according to the second response threshold , the second response threshold is smaller than the first response threshold. The embodiment of the present disclosure fully considers the user's operating habits, that is, the user's finger generally pauses for a period of time when controlling the display screen and then performs the sliding operation, while the user's finger does not pause for a period of time before sliding when hovering over the terminal. Therefore, by detecting the touch signal generated by pausing for a period of time and then performing the sliding operation, it can distinguish between the user wearing gloves and the user's finger hovering over the terminal, avoiding misoperation, and ensuring that the user is wearing gloves. can still easily control the display screen.

In a possible implementation, detecting a touch signal on the display screen includes:

According to the distribution positions of the multiple screen areas in the display screen, each screen area in the display screen is traversed, and the touch signal on the traversed screen area is detected.

In a possible implementation manner, the first preset duration is the product of the preset unit duration and the preset number of times, and the preset unit duration is the duration required to traverse all screen areas in the display screen within one detection period;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turning off the Hover suppression function includes:

Count the number of consecutive touches of each screen area, and the number of consecutive touches of the screen area is the number of detection cycles of the same touch signal whose capacitance difference is not greater than the first response threshold is continuously detected on the screen area;

When a movement event of the touch signal is detected on any screen area, and the number of consecutive touches corresponding to the touch signal is not less than the preset number of times, the Hover suppression function is turned off.

In a possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turning off the Hover suppression function includes:

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least the first preset duration, and the number of screen areas affected by the touch signal is not less than the preset number, turn off Hover suppression function.

In a possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least a first preset time period, turning off the Hover suppression function includes:

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least a first preset duration, and the moving distance of the touch signal is not less than the preset distance, turn off Hover suppression Function.

FIG. 2 is a flowchart of a method for responding to a touch signal according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 2 , the method includes the following steps:

In step 201, the Hover suppression function is enabled.

The terminal may be a mobile phone, a tablet computer or other devices. The terminal is equipped with a capacitive display screen, and the display screen can adopt TDDI (Touch and Display Driver Integration, touch and display driver integration) incell (an in-cell touch panel), Oncell (an out-cell touch panel) panel), Hybrid incell (another in-cell touch panel), GFF (Glass-Film-Film, an external touch panel), GG (Glass-Glass, another external touch panel), etc. .

The terminal is preset with a reference capacitance value, and the reference capacitance value is a capacitance value when the display screen is not approached or touched by a user's finger. When the user's finger approaches or touches the display screen, due to the action of the electric field of the human body, the user's finger and the display screen form a coupling capacitance, which will cause the capacitance value of the display screen to change. At this time, the terminal can obtain the capacitance value of the display screen and the reference capacitance value. The difference between the larger capacitance value and the smaller capacitance value is the capacitance difference value, and the terminal detects the touch signal on the display screen at this time. Wherein, the smaller the distance between the user's finger and the display screen, the larger the generated capacitance difference.

The terminal may acquire the capacitance difference through the detection node, or the terminal may acquire the capacitance difference in other ways.

In a possible implementation manner, the terminal includes a detection node, a display screen and a control unit, the detection node is configured on the display screen, and the detection node is connected to the control unit. The detection node can obtain the current capacitance value of the display screen, and send the capacitance value to the control unit. After receiving the capacitance value, the control unit obtains the larger capacitance value and the smaller capacitance value among the capacitance value and the reference capacitance value. The difference is the capacitance difference.

In the embodiment of the present disclosure, the terminal provides a hover suppression function, and the hover suppression function is used to instruct to respond according to the first response threshold. According to whether the hover suppression function is enabled or not, the terminal may include the following operation modes:

First, turn on the Hover suppression function:

When the terminal detects that the capacitance difference of the touch signal is greater than the first response threshold, the terminal responds to the touch signal, thereby realizing the user's control of the display screen. When the capacitance difference of the touch signal is not greater than the first response threshold, the touch signal is ignored.

The first response threshold may be determined according to the minimum value of the capacitance difference generated when the user controls the display screen without wearing gloves.

Second, turn off the Hover suppression function:

When the terminal detects that the capacitance difference of the touch signal is greater than the second response threshold, the terminal responds to the touch signal, thereby realizing the user's control of the display screen. When the capacitance difference of the touch signal is not greater than the second response threshold, the touch signal is ignored.

The second response threshold may be determined according to the minimum value of the capacitance difference generated when the user controls the display screen while wearing gloves, and the second response threshold is smaller than the first response threshold.

The difference between the above two operating modes is that the response thresholds used are different. When the capacitance difference of the touch signal is greater than the second response threshold and less than the first response threshold, and the Hover suppression function is turned off, the terminal will respond to the touch. signal, and when the Hover suppression function is enabled, the terminal does not respond to the touch signal.

Regarding the way of responding to the touch signal, the terminal can obtain the display interface of the current display screen in advance, and when detecting the touch signal, obtain the position of the touch signal, and respond based on the display interface of the current display screen and the position of the touch signal. should touch the signal. The position of the touch signal may be represented by the coordinates of the touch signal in a coordinate system, and the coordinate system may be a coordinate system established with a position such as the upper left corner or the upper right corner of the display screen as the origin.

For example, the display interface of the current display screen of the terminal includes application icons of multiple application clients, and each application icon is located at a different position on the display screen. When the user wants to start the application client A, he will touch the application on the display screen with his finger. The position where the application icon of client A is located generates a touch signal. When the terminal detects the touch signal, it obtains the position of the touch signal, determines that the position of the touch signal is the position where the application icon of the application client A is located, starts the application client A, and displays the interface of the application client A.

The embodiment of the present disclosure takes the case of enabling the Hover suppression function as an example. The terminal can automatically enable the Hover suppression function when it is powered on, or the terminal provides a switch for the Hover suppression function. When the user enables this switch, the terminal enables the Hover suppression function, or the terminal can also enable the Hover suppression function in other ways.

In step 202, each screen area in the display screen is traversed according to the distribution positions of the plurality of screen areas in the display screen, and touch signals on the traversed screen areas are detected.

In the embodiment of the present disclosure, the display screen of the terminal includes a plurality of screen areas, and the screen areas are respectively distributed in different positions of the display screen. The terminal traverses each screen area in the display screen, and each time it traverses to a screen area, obtains the capacitance difference value of the screen area, and determines whether a touch signal is detected on the screen area according to the capacitance difference value.

Regarding the division method of multiple screen areas, in a possible implementation manner, multiple detection nodes are configured on the display screen, and the screen area where each detection node is located may be regarded as a screen area. For example, the detection node includes 18 rows and 32 columns, then the number of detection nodes is 18*32=576, and correspondingly, the display screen of the terminal includes 576 screen areas.

Regarding the way of traversing each screen area, the terminal can obtain the distribution positions of multiple screen areas in the order from left to right and top to bottom, or in the order from top to bottom and left to right. Obtained, or other methods may also be used.

In a possible implementation manner, the terminal sets a preset threshold, and after acquiring the capacitance difference value of each screen area, determines whether a touch signal is detected in the screen area according to the acquired capacitance difference value and the preset threshold value . That is, after acquiring the capacitance difference, the terminal compares the acquired capacitance difference with a preset threshold. When the capacitance difference is greater than the preset threshold, the terminal determines that the touch signal is detected in the screen area corresponding to the capacitance difference. , and when the capacitance difference is not greater than the preset threshold, the terminal determines that no touch signal is detected in the screen area corresponding to the capacitance difference. The preset threshold may be determined according to the minimum value of the capacitance difference generated when the user controls the display screen in various situations.

For example, as shown in FIG. 3 , when the preset threshold is 15 Farads, the screen area with a capacitance difference greater than 15 Farads is used as the screen area where the touch signal is detected.

By comparing the obtained capacitance difference with the preset preset threshold, the problem of terminal misjudgment caused by the change of the capacitance difference in the screen area due to dust in the air or other factors is prevented, and the terminal detection is improved. Accuracy of touch signals.

It should be noted that this step 202 is only described in the manner in which the terminal detects touch signals by traversing the multiple screen areas. In another embodiment, the terminal may also detect touch signals on the display screen in other manners. control signal.

Another point that needs to be explained is that this embodiment of the present disclosure takes the execution of step 202 after step 201 as an example for description, and in another embodiment, this step can be executed at any time after the terminal turns on the Hover suppression function 202, this step 202 can be performed one or more times, and it only needs to be performed every time when the Hover suppression function is enabled on the terminal.

In step 203 , count the number of consecutive touches in each screen area, and the number of consecutive touches in the screen area is the number of times of the detection period of the same touch signal whose capacitance difference is not greater than the first response threshold is continuously detected on the screen area. The number, that is, the same touch signal whose capacitance difference is not greater than the first response threshold is detected on the same screen area in n consecutive detection periods, and the number of consecutive touches in the screen area is n.

In the embodiment of the present disclosure, when the user's finger controls the display screen, a touch signal will be triggered on the display screen. At this time, the terminal can receive a touch notification, and the touch notification includes a touch identifier, a touch area, and a touch event. The touch identifier corresponds to the touch signal one by one. When the terminal detects the touch signal for the first time, it will configure the touch identifier for the touch signal. During the process of sliding the touch signal on the display screen, The touch ID of the touch signal remains unchanged. The touch area is the action area of the touch signal on the display screen, and the touch area can be represented by coordinates on the display screen. For the same touch signal, during the sliding process of the touch signal on the display screen, The touch area changes accordingly. The touch event is an event generated by a touch signal, and the touch event may include a click event, a movement event, etc. The touch event may be represented by an event identifier, and different event identifiers represent different types of touch events.

For example, the touch identifier may be represented by a touch ID (IDentification, identity), and the touch event is represented by a Status, then the touch notification received by the terminal is shown in Table 1.

Table 1

touch logo mobile event ID Status=2

Regarding the way in which the touch ID is represented by touch ID, in a possible implementation manner, the touch ID of the first finger that controls the display screen can be represented by ID0, and the touch ID of the second finger that controls the display screen can be It is represented by ID1, and so on, or the touch identification can also be represented in other ways.

In a possible implementation manner, the terminal may receive the touch notification reported by the display screen by invoking the interface of the display screen, or the terminal may also receive the touch notification in other manners.

In the embodiment of the present disclosure, after traversing each screen area of the display screen to obtain the capacitance difference value of each screen area, the terminal will continue to repeat this step to obtain the capacitance difference value of each screen area again, so that each Alternate detection of each screen area. Then, traversing all the screen areas in the display screen once can be called a detection period. In each detection period, the capacitance difference of each screen area is acquired, and the touch signal on each screen area is detected.

In the above detection process, the number of consecutive touches of each screen area is counted. The number of consecutive touches in the screen area is the number of times that the same touch signal with a capacitance difference not greater than the first response threshold is detected in multiple consecutive detection cycles, that is, the capacitance difference is continuously detected on the screen area not greater than The number of detection cycles of the same touch signal of the first response threshold.

Wherein, when counting the number of consecutive touches of each screen area, the terminal detects that the capacitance difference of the screen area is not greater than the first response threshold in each detection period, and obtains the touch identifier of the touch signal. It is determined that the touch ID is the same as the touch ID obtained on the screen area in the previous detection period, which means that the touch signal and the last touch signal are the same touch signal, and the number of consecutive touches is increased by one . During the counting process, once a change in the touch identifier of the touch signal is detected in the middle, or the capacitance difference of the touch signal is greater than the first preset threshold, the counted consecutive touch counts are cleared to zero, and the counted number of consecutive touches is reset. Do statistics.

In step 204, when a movement event of the touch signal is detected on any screen area, and the number of consecutive touches corresponding to the touch signal is not less than the preset number of times, turn off the Hover suppression function, and respond according to the second response threshold, The second response threshold is smaller than the first response threshold.

Considering that when the user controls the display screen, the user's finger generally pauses for a period of time before performing the sliding operation. Therefore, in order to determine that the user's finger has paused for a period of time, the terminal also sets a preset number of times. When the number of consecutive touches counted by the terminal is not less than the preset number of times, it indicates that the user's finger has paused for a period of time. The preset number of times may be determined according to the time for which the user's finger pauses under normal circumstances.

The movement event refers to the different touch positions of the same touch signal detected by the terminal twice in a row. When the terminal detects a touch signal in any screen area and a movement event occurs, and the number of consecutive touches corresponding to the touch signal When not less than the preset number of times, it indicates that the user controls the display screen while wearing gloves.

In a possible implementation manner, when the terminal traverses each screen area on the display screen and detects a touch signal, the terminal acquires the touch identifier and touch position of the touch signal, and when it traverses each screen area on the display screen next time When the touch signal is detected again in the screen area, the touch ID and touch position of the touch signal detected again will also be obtained. The touch signal with the same touch ID is the same touch signal. The secondary touch identifiers are the same, and the terminal determines whether the touch signal has moved based on the touch positions acquired twice.

For example: when the terminal periodically obtains the capacitance difference of each screen area to detect the touch signal on each screen area, in a detection period, when the terminal detects the touch signal, the terminal obtains the touch signal. The touch ID is ID1, and the touch position is (x, y). When in the next detection cycle, the terminal traverses each area of the display screen again and detects the touch signal again, it obtains the touch signal of the touch signal detected again. If the control identifier is ID1, the touch position is (m, n), and the touch position changes, the terminal determines that a movement event occurs by detecting the touch signal.

When the terminal determines that the user is currently controlling the display screen while wearing gloves, it will turn off the Hover suppression function and respond according to the second response threshold. Because the second response threshold is smaller than the first response threshold, and the user is wearing gloves In this case, when the display screen is controlled, the capacitance difference of the generated touch signal is greater than the second response threshold, so the terminal can respond to the touch signal, which increases the sensitivity of the display screen.

It should be noted that the above steps 203 to 204 only describe how the terminal determines that the user controls the terminal when the user is wearing gloves when the number of consecutive touches corresponding to the touch signal is not less than the preset number of times. The time required to traverse all screen areas in the display screen is called the preset unit time, and the product of the preset unit time and the preset number of times is the first preset time. Through the above statistical method, it can be guaranteed that the continuous touch of the screen area When the number of times reaches the preset number of times, the duration of the touch signal acting on the screen area reaches the first preset time period.

In another embodiment, other methods can also be used to determine whether the user controls the display screen while wearing gloves. It only needs to ensure that when the terminal determines that the capacitance difference of the touch signal is not greater than the first response threshold, and the screen is on the same screen When a movement event occurs in the area for at least the first preset time period, the Hover suppression function can be turned off.

In a possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least a first preset time period, and the number of screen areas that the touch signal acts on When not less than the preset number, turn off the Hover suppression function.

The number of screen areas affected by the touch signal refers to the total number of adjacent screen areas, and the preset number can be based on the screen area included in the contact area between the user's finger and the display screen when a finger touches the display screen under normal circumstances. The number of , the preset number can be 7, 9, or can also be other values that meet the conditions.

When the terminal traverses each screen area on the display screen, it may detect the touch signal generated by dust or other factors, and respond to the touch signal when it detects a movement event of the touch signal in the next detection cycle, resulting in wrong operation. The screen area where the touch signal generated by dust or other factors acts is usually smaller than the preset number. Therefore, in the method provided by the embodiment of the present disclosure, by setting the preset number, the touch signal generated by dust or other factors can be ignored. It is ensured that the touch signal is generated by the touch operation of the user's finger on the display screen, so as to avoid misoperation.

In another possible implementation manner, when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, a movement event occurs in the same screen area for at least a first preset time period, and the movement distance of the touch signal does not exceed the first response threshold. When the distance is less than the preset distance, the Hover suppression function is turned off.

The preset distance may be determined according to the moving distance of the user's finger during the process of controlling the display screen. In this embodiment of the present disclosure, the terminal may acquire the moving distance of the touch signal, and compare the moving distance with the preset distance. When the distance does not reach the preset distance, it is determined that no movement event occurs, and when the movement distance reaches the preset distance, it is determined that a movement event occurs, which avoids the touch signal moving a certain distance due to the user's hand sliding, which may cause the terminal to ring. The case where the touch signal should be.

Wherein, the moving distance of the touch signal is not less than the preset distance including at least one of the following: the moving distance of the touch signal in the horizontal direction is not less than the first preset distance; the moving distance of the touch signal in the vertical direction is not less than the first preset distance Two preset distances.

It should be noted that the terminal is configured with a display screen, and can also run a firmware program of the display screen, and execute the above-mentioned touch signal response method through the firmware program, wherein the firmware program may be a firmware program or other programs.

In the method provided by the embodiment of the present disclosure, the Hover suppression function is used to instruct the response according to the first response threshold, when the Hover suppression function is enabled, the touch signal on the display screen is detected, and when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold a response threshold, and when a movement event occurs in the same screen area for at least the first preset duration, it is determined that the user is operating the terminal while wearing gloves, so the Hover suppression function is turned off, and the response is performed according to the second response threshold , the second response threshold is smaller than the first response threshold. The embodiment of the present disclosure fully considers the user's operating habits, that is, the user's finger generally pauses for a period of time when controlling the display screen and then performs the sliding operation, while the user's finger does not pause for a period of time before sliding when hovering over the terminal. Therefore, by detecting the touch signal generated by pausing for a period of time and then performing the sliding operation, it can distinguish between the user wearing gloves and the user's finger hovering over the terminal, avoiding misoperation, and ensuring that the user is wearing gloves. can still easily control the display screen.

FIG. 4 is a schematic diagram illustrating an operation flow according to an exemplary embodiment. As shown in FIG. 4 , the operation flow includes:

When the Hover suppression function is turned on, the terminal first detects whether there is a touch signal in the screen area, and if there is a touch signal, detects whether a movement event occurs after the touch signal continues in the same screen area for at least a first preset duration. If the above conditions are met, the terminal disables the Hover suppression function. If the above conditions are not met, the terminal continues to enable the Hover suppression function.

FIG. 5 is a block diagram of a touch signal response device according to an exemplary embodiment. As shown in FIG. 5 , the device includes:

The detection module 501 is configured to detect the touch signal on the display screen when the hovering Hover suppression function is enabled, and the Hover suppression function is used to instruct to respond according to the first response threshold;

The closing module 502 is configured to close the Hover suppression function when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and when a movement event occurs in the same screen area for at least a first preset time period, according to the second response A threshold is used to respond, and the second response threshold is smaller than the first response threshold.

In the device provided by the embodiment of the present disclosure, the Hover suppression function is used to instruct the response according to the first response threshold. When the Hover suppression function is turned on, the touch signal on the display screen is detected. When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold A response threshold, and when a movement event occurs in the same screen area for at least the first preset time period, it is determined that the user is operating the terminal while wearing gloves, so the Hover suppression function is turned off, and the response is performed according to the second response threshold , the second response threshold is smaller than the first response threshold. The embodiment of the present disclosure fully considers the user's operating habits, that is, the user's finger generally pauses for a period of time when controlling the display screen and then performs the sliding operation, while the user's finger does not pause for a period of time before sliding when hovering over the terminal. Therefore, by detecting the touch signal generated by pausing for a period of time and then performing the sliding operation, the user is wearing gloves and the user's finger is hovering over the terminal, which avoids misoperation and ensures that the user is wearing gloves. can still easily control the display screen.

In a possible implementation, the detection module 501 includes:

The detection unit is configured to traverse each screen area in the display screen according to the distribution positions of the plurality of screen areas in the display screen, and detect the touch signal on the traversed screen area.

In a possible implementation manner, the first preset duration is the product of the preset unit duration and the preset number of times, and the preset unit duration is the duration required to traverse all screen areas in the display screen within one detection period;

The shutdown module 502 includes:

The statistical unit is used to count the number of consecutive touches of each screen area, and the number of consecutive touches of the screen area is the number of detection cycles of the same touch signal whose capacitance difference is not greater than the first response threshold is continuously detected on the screen area. number;

The closing unit is configured to disable the Hover suppression function when a movement event of the touch signal is detected on any screen area, and the number of consecutive touches corresponding to the touch signal is not less than a preset number of times.

In one possible implementation, the closing module 502 includes:

The first closing unit is used for determining that the capacitance difference of the touch signal is not greater than the first response threshold, the movement event occurs after the same screen area lasts for at least a first preset time period, and the number of screen areas that the touch signal acts on is different. When the number is less than the preset number, the Hover suppression function is turned off.

In one possible implementation, the closing module 502 includes:

The second closing unit is configured to generate a movement event after it is determined that the capacitance difference of the touch signal is not greater than the first response threshold and lasts in the same screen area for at least a first preset period of time, and the movement distance of the touch signal is not less than the predetermined time. When setting the distance, turn off the Hover suppression function.

FIG. 6 is a block diagram of a terminal 600 for responding to a touch signal according to an exemplary embodiment. The terminal 600 may be a portable mobile terminal, such as a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, the standard audio layer 3 of the moving picture experts compression), MP4 (Moving Picture Experts Group Audio Layer IV, the moving picture expert) Compression Standard Audio Layer 4) Player, Laptop or Desktop. Terminal 600 may also be called user equipment, portable terminal, laptop terminal, desktop terminal, and the like by other names.

The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 601 may adopt at least one hardware form among DSP (Digital Signal Processing, digital signal processing), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array, programmable logic array) accomplish. The processor 601 may also include a main processor and a coprocessor. The main processor is a processor used to process data in a wake-up state, also called a CPU (Central Processing Unit, central processing unit); A low-power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is used for rendering and drawing the content that needs to be displayed on the display screen. In some embodiments, the processor 601 may further include an AI (Artificial Intelligence, artificial intelligence) processor, where the AI processor is used to process computing operations related to machine learning.

Memory 602 may include one or more computer-readable storage media, which may be non-transitory. Memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more disk storage devices, flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 602 is used to store at least one instruction, and the at least one instruction is used by the processor 601 to implement the touch control provided by the method embodiments of the present application. Signal response method.

In some embodiments, the terminal 600 may optionally further include: a peripheral device interface 603 and at least one peripheral device. The processor 601, the memory 602 and the peripheral device interface 603 may be connected through a bus or a signal line. Each peripheral device can be connected to the peripheral device interface 603 through a bus, a signal line or a circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 604 , a touch display screen 605 , a camera 606 , an audio circuit 607 , a positioning component 608 and a power supply 609 .

The peripheral device interface 603 may be used to connect at least one peripheral device related to I/O (Input/Output) to the processor 601 and the memory 602 . In some embodiments, processor 601, memory 602, and peripherals interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one of processor 601, memory 602, and peripherals interface 603 or The two can be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The radio frequency circuit 604 is used for receiving and transmitting RF (Radio Frequency, radio frequency) signals, also called electromagnetic signals. The radio frequency circuit 604 communicates with the communication network and other communication devices via electromagnetic signals. The radio frequency circuit 604 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 604 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and the like. The radio frequency circuit 604 may communicate with other terminals through at least one wireless communication protocol. The wireless communication protocols include, but are not limited to, metropolitan area networks, mobile communication networks of various generations (2G, 3G, 4G and 13G), wireless local area networks and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 604 may further include a circuit related to NFC (Near Field Communication, short-range wireless communication), which is not limited in this application.

The display screen 605 is used to display a UI (User Interface). The UI can include graphics, text, icons, video, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to acquire touch signals on or above the surface of the display screen 605 . The touch signal may be input to the processor 601 as a control signal for processing. At this time, the display screen 605 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, there may be one display screen 605, which is provided on the front panel of the terminal 600; in other embodiments, there may be at least two display screens 605, which are respectively arranged on different surfaces of the terminal 600 or in a folded design; In still other embodiments, the display screen 605 may be a flexible display screen, disposed on a curved surface or a folding surface of the terminal 600 . Even, the display screen 605 can also be set as a non-rectangular irregular figure, that is, a special-shaped screen. The display screen 605 can be made of materials such as LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic Light-Emitting Diode, organic light emitting diode).

The camera assembly 606 is used to capture images or video. Optionally, the camera assembly 606 includes a front camera and a rear camera. Usually, the front camera is arranged on the front panel of the terminal, and the rear camera is arranged on the back of the terminal. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth-of-field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth-of-field camera to realize the background blur function, the main camera It is integrated with the wide-angle camera to achieve panoramic shooting and VR (Virtual Reality, virtual reality) shooting functions or other integrated shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash can be a single color temperature flash or a dual color temperature flash. Dual color temperature flash refers to the combination of warm light flash and cold light flash, which can be used for light compensation under different color temperatures.

Audio circuitry 607 may include a microphone and speakers. The microphone is used to collect the sound waves of the user and the environment, convert the sound waves into electrical signals, and input them to the processor 601 for processing, or to the radio frequency circuit 604 to realize voice communication. For the purpose of stereo collection or noise reduction, there may be multiple microphones, which are respectively disposed in different parts of the terminal 600 . The microphone may also be an array microphone or an omnidirectional collection microphone. The speaker is used to convert the electrical signal from the processor 601 or the radio frequency circuit 604 into sound waves. The loudspeaker can be a traditional thin-film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert electrical signals into sound waves audible to humans, but also convert electrical signals into sound waves inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 607 may also include a headphone jack.

The positioning component A is used to locate the current geographic location of the terminal 600 to implement navigation or LBS (Location Based Service, location-based service). The positioning component 608 may be a positioning component based on the GPS (Global Positioning System, global positioning system) of the United States, the Beidou system of China, the Grenas system of Russia, or the Galileo system of the European Union.

The power supply 609 is used to power various components in the terminal 600 . The power source 609 may be alternating current, direct current, disposable batteries or rechargeable batteries. When the power source 609 includes a rechargeable battery, the rechargeable battery can support wired charging or wireless charging. The rechargeable battery can also be used to support fast charging technology.

In some embodiments, terminal 600 also includes one or more sensors 610 . The one or more sensors 610 include, but are not limited to, an acceleration sensor 611 , a gyro sensor 612 , a pressure sensor 613 , a fingerprint sensor 614 , an optical sensor 615 and a proximity sensor 616 .

The acceleration sensor 611 can detect the magnitude of acceleration on the three coordinate axes of the coordinate system established by the terminal 600 . For example, the acceleration sensor 611 can be used to detect the components of the gravitational acceleration on the three coordinate axes. The processor 601 can control the touch display screen 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 611 . The acceleration sensor 611 can also be used for game or user movement data collection.

The gyroscope sensor 612 can detect the body direction and rotation angle of the terminal 600 , and the gyroscope sensor 612 can cooperate with the acceleration sensor 611 to collect 3D actions of the user on the terminal 600 . The processor 601 can implement the following functions according to the data collected by the gyro sensor 612 : motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

The pressure sensor 613 may be disposed on the side frame of the terminal 600 and/or the lower layer of the touch display screen 605 . When the pressure sensor 613 is disposed on the side frame of the terminal 600, the user's holding signal of the terminal 600 can be detected, and the processor 601 can perform left and right hand identification or quick operation according to the holding signal collected by the pressure sensor 613. When the pressure sensor 613 is disposed on the lower layer of the touch display screen 605 , the processor 601 controls the operability controls on the UI interface according to the user's pressure operation on the touch display screen 605 . The operability controls include at least one of button controls, scroll bar controls, icon controls, and menu controls.

The fingerprint sensor 614 is used to collect the user's fingerprint, and the processor 601 identifies the user's identity according to the fingerprint collected by the fingerprint sensor 614, or the fingerprint sensor 614 identifies the user's identity according to the collected fingerprint. When the user's identity is identified as a trusted identity, the processor 601 authorizes the user to perform related sensitive operations, and the sensitive operations include unlocking the screen, viewing encrypted information, downloading software, making payments, and changing settings. The fingerprint sensor 614 may be provided on the front, back or side of the terminal 600 . When the terminal 600 is provided with physical buttons or a manufacturer's logo, the fingerprint sensor 614 may be integrated with the physical buttons or the manufacturer's logo.

Optical sensor 615 is used to collect ambient light intensity. In one embodiment, the processor 601 may control the display brightness of the touch display screen 605 according to the ambient light intensity collected by the optical sensor 615 . Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 605 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 605 is decreased. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 615 .

A proximity sensor 616 , also called a distance sensor, is usually provided on the front panel of the terminal 600 . The proximity sensor 616 is used to collect the distance between the user and the front of the terminal 600 . In one embodiment, when the proximity sensor 616 detects that the distance between the user and the front of the terminal 600 gradually decreases, the processor 601 controls the touch display screen 605 to switch from the bright screen state to the off screen state; when the proximity sensor 616 detects When the distance between the user and the front of the terminal 600 gradually increases, the processor 601 controls the touch display screen 605 to switch from the screen-off state to the screen-on state.

Those skilled in the art can understand that the structure shown in FIG. 6 does not constitute a limitation on the terminal 600, and may include more or less components than the one shown, or combine some components, or adopt different component arrangements.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, when the instructions in the storage medium are executed by the processor of the touch signal response device, the touch signal response device can execute a touch Control signal response method, the method includes:

When the hovering Hover suppression function is enabled, the touch signal on the display screen is detected, and the Hover suppression function is used to instruct the response according to the first response threshold;

When it is determined that the capacitance difference of the touch signal is not greater than the first response threshold, and a movement event occurs in the same screen area for at least the first preset duration, the Hover suppression function is turned off, and the response is made according to the second response threshold. The response threshold is less than the first response threshold.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (12)

1. A touch signal response method, the method comprising:

under the condition that a hovering Hover suppression function is started, detecting a touch signal on a display screen, wherein the Hover suppression function is used for indicating to respond according to a first response threshold value;

and when the capacitance difference value of the touch signal is not larger than the first response threshold value and a movement event occurs after the touch signal is continuously displayed in the same screen area for at least a first preset time period, closing the Hover suppression function, and responding according to a second response threshold value, wherein the second response threshold value is smaller than the first response threshold value.

2. The method of claim 1, wherein detecting the touch signal on the display screen comprises:

and traversing each screen area in the display screen according to the distribution positions of the plurality of screen areas in the display screen, and detecting the touch signals on the traversed screen areas.

3. The method according to claim 2, wherein the first preset duration is a product of a preset unit duration and a preset number of times, and the preset unit duration is a duration required for traversing all screen areas in the display screen within one detection period;

when it is determined that the capacitance difference value of the touch signal is not greater than the first response threshold value and a movement event occurs after the touch signal is continuously displayed in the same screen area for at least a first preset time period, closing the Hover suppression function, including:

counting the continuous touch times of each screen area, wherein the continuous touch times of the screen areas are the number of detection periods of the same touch signal, of which the capacitance difference value is not more than the first response threshold value, continuously detected on the screen areas;

and when the touch signal is detected to have the movement event in any screen area and the continuous touch frequency corresponding to the touch signal is not less than the preset frequency, closing the Hover inhibition function.

4. The method of claim 1, wherein the turning off the Hover suppression function when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold and a movement event occurs after lasting at least a first preset time period in the same screen area comprises:

and when the capacitance difference value of the touch signal is determined to be not greater than the first response threshold value, a movement event occurs after at least a first preset time duration is continued in the same screen area, and the number of the screen areas acted by the touch signal is not less than a preset number, closing the Hover suppression function.

5. The method of claim 1, wherein the turning off the Hover suppression function when it is determined that the capacitance difference of the touch signal is not greater than the first response threshold and a movement event occurs after lasting at least a first preset time period in the same screen area comprises:

and when the capacitance difference value of the touch signal is determined to be not greater than the first response threshold value, a movement event occurs after at least a first preset time duration in the same screen area, and the movement distance of the touch signal is not less than a preset distance, closing the Hover suppression function.

6. A touch signal response device, the device comprising:

the device comprises a detection module, a display module and a control module, wherein the detection module is used for detecting a touch signal on a display screen under the condition of starting a hovering Hover restraining function, and the Hover restraining function is used for indicating to respond according to a first response threshold value;

and the closing module is used for closing the Hover suppression function and responding according to a second response threshold when the capacitance difference value of the touch signal is not larger than the first response threshold and a movement event occurs after the capacitance difference value lasts for at least a first preset time in the same screen area, wherein the second response threshold is smaller than the first response threshold.

7. The apparatus of claim 6, wherein the detection module comprises:

and the detection unit is used for traversing each screen area in the display screen according to the distribution positions of the plurality of screen areas in the display screen and detecting the touch signals on the traversed screen areas.

8. The apparatus according to claim 7, wherein the first preset duration is a product of a preset unit duration and a preset number of times, and the preset unit duration is a duration required for traversing all screen areas in the display screen within one detection period;

the shutdown module includes:

the counting unit is used for counting the continuous touch times of each screen area, wherein the continuous touch times of the screen areas are the number of detection periods of the same touch signal, the capacitance difference value of which is not more than the first response threshold value, continuously detected on the screen areas;

and the closing unit is used for closing the Hover suppression function when the touch signal is detected to generate the moving event on any screen area and the continuous touch frequency corresponding to the touch signal is not less than the preset frequency.

9. The apparatus of claim 6, wherein the shutdown module comprises:

and the first closing unit is used for closing the Hover suppression function when the capacitance difference value of the touch signal is determined to be not greater than the first response threshold value, a movement event occurs after at least a first preset time duration in the same screen area, and the number of the screen areas acted by the touch signal is not less than a preset number.

10. The apparatus of claim 6, wherein the shutdown module comprises:

and the second closing unit is used for closing the Hover suppression function when the capacitance difference value of the touch signal is determined to be not greater than the first response threshold value, a movement event occurs after at least a first preset time duration in the same screen area, and the movement distance of the touch signal is not less than a preset distance.

11. A touch signal response device, the device comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

under the condition that a hovering Hover suppression function is started, detecting a touch signal on a display screen, wherein the Hover suppression function is used for indicating to respond according to a first response threshold value;

and when the capacitance difference value of the touch signal is not larger than the first response threshold value and a movement event occurs after the touch signal is continuously displayed in the same screen area for at least a first preset time period, closing the Hover suppression function, and responding according to a second response threshold value, wherein the second response threshold value is smaller than the first response threshold value.

12. A non-transitory computer readable storage medium having instructions therein, which when executed by a processor of a touch signal response device, enable the touch signal response device to perform a touch signal response method, the method comprising:

under the condition that a hovering Hover suppression function is started, detecting a touch signal on a display screen, wherein the Hover suppression function is used for indicating to respond according to a first response threshold value;

and when the capacitance difference value of the touch signal is not larger than the first response threshold value and a movement event occurs after the touch signal is continuously displayed in the same screen area for at least a first preset time period, closing the Hover suppression function, and responding according to a second response threshold value, wherein the second response threshold value is smaller than the first response threshold value.

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