KR20250092330A - Button module which identifies touch motion - Google Patents

Abstract

A button module for identifying tap information and slide information according to one embodiment of the present invention comprises a button including a plurality of electrodes and a signal processing unit electrically connected to the button so as to measure capacitance of the electrodes according to a touch motion for the button, wherein the button comprises a first electrode pair including first and second electrodes arranged in a first direction and a second electrode pair including third and fourth electrodes arranged in a second direction with the first and second electrodes and arranged in the first direction relative to each other, and wherein the signal processing unit comprises: a step of generating a first variation amount related to a variation amount of capacitance of the first electrode pair according to the touch motion and a second variation amount related to a variation amount of capacitance of the second electrode pair; a step of comparing the first and second variation amounts to identify a first active section recognizing the first electrode pair as a touch active electrode and a second active section recognizing the second electrode pair as a touch active electrode, wherein the first and second active sections are continuous with each other; and a first value for a maximum value of the first variation amount in the first active section. A step of generating first ratio information on a ratio of the amount of change and second ratio information on a ratio of the second amount of change to a maximum value of the second amount of change in the second active section, a step of generating integrated ratio information in an integrated active section by correcting at least one of the first and second ratio information, wherein the integrated active section includes the first and second active sections.
A step of identifying the touch motion as one of the slide motion and the tap motion in the second direction based on information on change in the integrated ratio information over time, and a step of identifying one of the first and second electrode pairs as the tap position of the tap motion based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair when the touch motion is identified as the tap motion.

Description

Button module that identifies tap information and slide information {Button module which identifies touch motion}

The present invention relates to a button mounted on an electronic device, and more specifically, to a button module that identifies a tap motion and a slide motion and processes signals related thereto.

Electronic devices such as smartphones and tablet PCs receive various types of interaction input from users in order to perform various functions. Recently, as electronic devices provide more diverse and complex functions, cases in which multiple types of interaction are input from a single button module are increasing. Accordingly, button modules are equipped with a function to distinguish and identify these multiple types of interactions from each other.

In order to improve the external aesthetics of some recent electronic devices, rather than the traditionally widely used physical button-type button modules such as dome keys, a touch-type button module is installed. Such a touch-type button module can be formed in a continuous form without protruding outward from the housing of the electronic device and without a sense of incongruity with the surroundings, which can help improve the external aesthetics of the electronic device.

These conventional touch-type button modules can relatively accurately identify whether a user has tapped or not, but have difficulty in determining the exact location of the tap motion. In addition, the conventional touch-type button modules have the problem of having difficulty in accurately identifying touch motions that are complex with specific gestures, such as slides.

Accordingly, there is an increasing demand for a touch module that is a touch-type button module and can accurately determine the location of a tap motion while also identifying gesture motions such as slides.

Republic of Korea Patent Publication No. 10-1803948 (2017.11.27)

The purpose of the present invention is to provide a button module that is a touch-type button module and can identify touch motions such as slides in addition to tap input.

The purpose of the present invention is to provide a button module including a signal processing unit capable of identifying accurate touch motion through relatively simple signal operations.

A button module for identifying tap information and slide information according to one embodiment of the present invention comprises a button including a plurality of electrodes and a signal processing unit electrically connected to the button so as to measure capacitance of the electrodes according to a touch motion for the button, wherein the button comprises a first electrode pair including first and second electrodes arranged in a first direction and a second electrode pair including third and fourth electrodes arranged in a second direction with the first and second electrodes and arranged in the first direction relative to each other, and wherein the signal processing unit comprises: a step of generating a first variation amount related to a variation amount of capacitance of the first electrode pair according to the touch motion and a second variation amount related to a variation amount of capacitance of the second electrode pair; a step of comparing the first and second variation amounts to identify a first active section recognizing the first electrode pair as a touch active electrode and a second active section recognizing the second electrode pair as a touch active electrode, wherein the first and second active sections are continuous with each other; and a first value for a maximum value of the first variation amount in the first active section. A step of generating first ratio information on a ratio of the amount of change and second ratio information on a ratio of the second amount of change to a maximum value of the second amount of change in the second active section, a step of generating integrated ratio information in an integrated active section by correcting at least one of the first and second ratio information, wherein the integrated active section includes the first and second active sections.

A step of identifying the touch motion as one of the slide motion and the tap motion in the second direction based on information on change in the integrated ratio information over time, and a step of identifying one of the first and second electrode pairs as the tap position of the tap motion based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair when the touch motion is identified as the tap motion.

In one embodiment of the present invention, the step of generating the integrated ratio information includes the step of applying an offset to at least one of the first and second ratio information to modify the first and second ratio information to be continuous in the integrated active section.

In one embodiment of the present invention, the step of identifying one of the slide motion and the tap motion in the second direction includes the step of generating a trend line function of the integrated ratio information, the step of generating slope information of the trend line function over time, and the step of determining change information of the integrated ratio information over time based on the slope information.

In one embodiment of the present invention, the first active section is determined as a section in which the first change amount is greater than the second change amount, and the second active section is determined as a section in which the second change amount is greater than the first change amount.

In one embodiment of the present invention, the starting point of the first active interval is determined by the first change amount exceeding the starting point criterion for the first active interval, and the end point of the second active interval is determined by the second change amount falling short of the end point criterion for the second active interval.

In one embodiment of the present invention, the dividing point between the first and second active sections is determined by the second change amount exceeding the point in time criterion for the second active section.

In one embodiment of the present invention, the identifying step includes a step of identifying the touch motion as a tap if the time length of the integrated active section is less than or equal to the time criterion even if the slope information exceeds the slope criterion.

In one embodiment of the present invention, the button further includes a third electrode pair including a third electrode and a fourth electrode arranged in a second direction with respect to the first and second electrodes and arranged in the first direction with respect to each other, and the signal processing unit further includes a step of identifying a touch motion for the third electrode pair in the same manner as a method of identifying a touch motion for the first electrode pair, and a step of identifying the touch motion for the button as a slide motion when at least one of the touch motion for the first electrode pair, the touch motion for the second electrode pair, and the touch motion for the third electrode pair is identified as a slide motion.

According to one embodiment of the present invention, a button module for identifying tap information and slide information is provided in a method for a signal processing unit to identify tap information and slide information of a button, wherein the button includes a plurality of electrodes, and the signal processing unit is electrically connected to the button so as to measure capacitance of the electrodes according to a touch motion for the button, and the button includes a first electrode pair including first and second electrodes arranged in a first direction and a second electrode pair including third and fourth electrodes arranged in a second direction with the first and second electrodes and arranged in the first direction with each other, and the step of generating a first variation amount related to a variation amount of capacitance of the first electrode pair according to the touch motion and a second variation amount related to a variation amount of capacitance of the second electrode pair, comparing the first and second variation amounts to identify a first active section in which the first electrode pair is recognized as a touch active electrode and a second active section in which the second electrode pair is recognized as a touch active electrode, wherein the first and second active sections are continuous with each other, and in the first active section, The method comprises: generating first ratio information about a ratio of the first variation amount to a maximum value of the first variation amount and second ratio information about a ratio of the second variation amount to a maximum value of the second variation amount in the second active section; generating integrated ratio information in the integrated active section by correcting at least one of the first and second ratio information, wherein the integrated active section includes the first and second active sections; identifying the touch motion as one of a slide motion and a tap motion in the second direction based on time-dependent change information of the integrated ratio information; and identifying one of the first and second electrode pairs as a tap position of the tap motion based on information about a capacitance of the first electrode pair and information about a capacitance of the second electrode pair when the touch motion is identified as a tap motion.

The present invention is a touch-type button module, and has the advantage of being able to identify touch motions such as slides in addition to tap input.

The present invention has the advantage of enabling accurate identification of touch motion through relatively simple signal operations.

Figure 1 schematically illustrates the configuration of the button module of the present invention.
Fig. 2 illustrates an example of a plane of a button of the present invention.
FIG. 3 is a flowchart illustrating a method for a signal processing unit of the present invention to identify a user's touch motion on a button.
Figure 4 is a graph showing the first and second change amounts generated as the step (301) of Figure 3 described above is performed.
Figure 5 is a graph showing the first and second change amounts generated as step (303) of Figure 3 described above is performed.
Figure 6 illustrates first and second ratio information generated as step (305) of Figure 3 described above is performed.
Figure 7 illustrates the generation of time-dependent slope information of integrated ratio information as step (309) of Figure 3 described above is performed.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the reference numerals used in the drawings, identical or similar components will be given the same reference numerals and redundant descriptions thereof will be omitted. In addition, when describing embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted.

Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, each step described may be performed regardless of the listed order, except in cases where it must be performed in the listed order due to a special causal relationship.

In this application, it should be understood that terms such as “comprises” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Hereinafter, the present invention will be described with reference to the attached drawings.

Figure 1 schematically illustrates the configuration of the button module of the present invention.

The button module of the present invention may include a button (100) and a signal processing unit (200).

The button (100) includes a plurality of electrodes. The electrodes may be exposed to the outside of the button. However, in some cases, the electrodes may be arranged to face the outside of the button, but the surface may be covered by another configuration such as a coating layer. The plurality of buttons may be arranged in a first direction and a second direction. The electrodes are formed of a conductive material such as metal, so that the amount of charge charged may change according to the user's touch motion, thereby changing the capacitance.

The signal processing unit (200) can measure the capacitance of multiple electrodes according to the touch motion on the button. For this purpose, the signal processing unit can be electrically connected to the button. The signal processing unit can be formed integrally with the button, but in some cases, the signal processing unit can be formed as a separate configuration from the button.

Fig. 2 illustrates an example of a plane of a button of the present invention.

Referring to FIG. 2, the button (100) of the present invention may include a plurality of electrodes. The plurality of electrodes may correspond to first to sixth electrodes (ch1 to ch6). The first to sixth electrodes may be arranged and positioned in the first direction and the second direction. Specifically, the first electrode to the second electrode may be arranged and positioned in the first direction. In addition, the third electrode to the fourth electrode may be arranged and positioned in the first direction. In addition, the fifth electrode to the sixth electrode may be arranged and positioned in the first direction. In addition, the first, second electrodes, the third, fourth electrodes, the fifth, and sixth electrodes may be arranged and positioned in the second direction.

Here, the first and second electrodes may correspond to the first electrode pair (210), the third and fourth electrodes may correspond to the second electrode pair (220), and the fifth and sixth electrodes may correspond to the third electrode pair (230). The first electrode pair, the second electrode pair, and the third electrode pair may be arranged and positioned in the second direction.

The first direction and the second direction described above may be directions orthogonal to each other. Accordingly, the first to sixth electrodes described above may be arranged in a 2 X 3 matrix form. Hereinafter, a specific method and steps for the signal processing unit to identify whether the touch motion for the first and second electrodes - the third and fourth electrodes - the fifth and sixth electrodes is a slide motion in the first direction or a tap motion will be described.

FIG. 3 is a flowchart for explaining a method in which a signal processing unit (200) of the present invention identifies a user's touch motion on a button (100).

In step (301), a first change amount related to the change amount of capacitance of the first electrode pair according to the touch motion and a second change amount related to the change amount of capacitance of the second electrode pair are generated.

Here, the first electrode pair includes first and second electrodes. The capacitance variation of the first electrode pair may be the sum or average of the capacitances of the first and second electrodes. In some cases, one of the first and second electrodes having a higher capacitance value may be selected as a representative electrode, and the capacitance variation for the representative electrode may be used as the capacitance variation of the first electrode pair.

Additionally, the second electrode pair includes third and fourth electrodes. The capacitance of the second electrode pair can be the sum or average of the capacitances of the third and fourth electrodes. The second electrode pair includes third and fourth electrodes. The capacitance of the second electrode pair can be the sum or average of the capacitances of the third and fourth electrodes.

Here, the first and second changes may occur according to the user's touch motion on the button. Specifically, when the user's touch motion on the electrode occurs, the electrode may be charged and the capacitance may increase. Here, the increase in capacitance per unit time may be the change.

In step (303), the signal processing unit compares the first and second change amounts to identify a first active section in which the first electrode pair is recognized as a touch-active electrode and a second active section in which the second electrode pair is recognized as a touch-active electrode.

In step (303), the first and second change amounts generated by the signal processing unit are compared and analyzed. By comparing the capacitance change amounts of the first electrode pair and the second electrode pair, the signal processing unit can identify the first active section and the second active section.

The first active interval refers to a temporal interval during which the first electrode pair recognizes that the user has touched the main electrode. The second active interval refers to a temporal interval during which the second electrode pair recognizes that the user has touched the main electrode. The first and second active intervals represent electrical activities during which the user touches the electrodes, and each active interval can reflect the nature of the touch motion and the user's intention.

The first active section may be determined as a section in which the first change amount is greater than the second change amount, and the second active section may be determined as a section in which the second change amount is greater than the first change amount. Specifically, if the capacitance change amount of the first electrode pair is greater than that of the second electrode pair, it becomes the first active section, and vice versa. In this process, the signal processing unit compares the maximum capacitance change amount of each electrode with the current change amount to generate ratio information, and through this, the characteristics of the user's touch motion can be analyzed more precisely.

In some cases, the starting point and the end point of the first and second active intervals can be determined based on the amount of change. The starting point of the first active interval can be determined by the first amount of change exceeding the starting point criterion for the first active interval, and the end point of the second active interval can be determined by the second amount of change falling short of the end point criterion for the second active interval. Additionally, the dividing point of the first and second active intervals can be determined by the second amount of change exceeding the starting point criterion for the second active interval.

The first and second active sections may be continuous with each other. The entire active section in which the first and second active sections are connected may be referred to as an integrated active section. The integrated active section may include the first and second active sections.

In step (305), the signal processing unit generates first ratio information about the ratio of the first variation amount to the maximum value of the first variation amount in the first active section and second ratio information about the ratio of the second variation amount to the maximum value of the second variation amount in the second active section.

In step (305), the signal processing unit generates ratio information based on the maximum value of each capacitance change amount in the first and second active sections. In this process, the signal processing unit calculates the ratio of the current first change amount to the maximum value of the first change amount in the first active section, and the ratio of the current second change amount to the maximum value of the second change amount in the second active section. The first and second ratio information can be used to determine the type of the user's touch motion.

In step (305), the first and second ratio information can be generated so that 100% is the maximum. Accordingly, the first and second ratio information becomes 100% at the point in time when the amount of change in each active section is the maximum.

In step (307), the signal processing unit generates integrated ratio information in the integrated active section based on the first and second ratio information. The integrated ratio information may be continuous in the integrated active section.

The integrated ratio information can be generated by applying an offset to at least one of the first and second ratio information. Applying the offset adjusts the range of the ratio information so that the ratio information, which quantifies the touch motion and displays it as a continuous function graph, can be analyzed. The offset serves to adjust the sensitivity of the first and second ratio information, and helps to more clearly understand the overall pattern of the touch motion.

The generation of continuous integrated ratio information in the integrated active section is used to analyze the pattern of touch motions performed within a specific time interval. Through this integrated ratio information, the signal processing unit can accurately analyze the types of various touch motions performed by the user.

In step (309), the signal processing unit generates information on the amount of change in the integrated ratio information over time.

The change amount information over time generates slope information of the trend line. To do this, a trend line function of the integrated ratio information can be generated and slope information for it can be calculated.

Step (309) is a process of analyzing information related to the temporal progression of the touch motion. The inclination information acts as an indicator of the speed and directionality of the touch motion. For example, when a user quickly slides a button in one direction, this motion will have a high inclination value. Conversely, when a user slowly or delicately taps the button, it may have a low inclination value.

The signal processing unit analyzes this inclination information to identify the type of touch motion. For example, if the inclination value exceeds a certain standard, this indicates that the user has performed a slide motion. On the other hand, if the inclination value falls below a certain standard, it may be considered a tap motion. Through this process, the signal processing unit can more accurately analyze the characteristics of the touch motion and provide a response that matches the user's intention. Through this, the signal processing unit can more accurately identify the speed, directionality, and strength of the touch motion, and further improve the responsiveness and accuracy of the user interface.

In step (311), the signal processing unit identifies the touch motion as either a slide motion or a tap motion in the second direction based on time-dependent change information of the integrated ratio information.

However, in some cases, even if the slope information exceeds the slope criterion, if the time length of the integrated active interval is less than or equal to the time criterion, the touch motion can be identified as a tap.

In step (313), if the signal processing unit identifies the touch motion as a tap motion, it identifies one of the first and second electrode pairs as the tap position of the tap motion based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair.

Unlike slide motion, tap motion requires identification of the position on the button where the tap motion is applied. In this case, the exact tap position can be identified based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair.

Here, the information on the capacitance of the first electrode pair and the information on the capacitance of the second electrode pair may be information on the change amount of capacitance, and in some cases, may be information on the absolute value of capacitance.

Hereinafter, each step described with reference to the graphs of FIGS. 4 to 7 will describe the contents of detecting the first, second, and third change amounts corresponding to the first, second, and third electrode pairs.

Figure 4 is a graph showing the first, second, and third change amounts generated as step (301) of Figure 3 described above is performed.

Referring to FIG. 4, the capacitor charge change amount of the first, second, and third electrode pairs, whose change amount sequentially increases in step (301), is illustrated. Based on this capacitor charge change amount information, the signal processing unit determines the type of touch motion.

Figure 5 is a graph showing the first, second and third change amounts generated as step (303) of Figure 3 described above is performed.

Referring to FIG. 5, the step (303) illustrates that the first, second and third variation amounts of FIG. 4 are compared to identify the active electrode. In FIG. 5, a time interval in which the first electrode pair (ch1) is identified as the active electrode can be identified as the first active interval (A). In addition, in FIG. 5, a time interval in which the second electrode pair (ch2) is identified as the active electrode can be identified as the second active interval (B). In addition, in FIG. 5, a time interval in which the third electrode pair (ch3) is identified as the active electrode can be identified as the third active interval (C).

Here, the first active section (A), the second active section (B), and the third active section (C) may be continuous time sections. In FIG. 5, the first active section (A), the second active section (B), and the third active section (C) are illustrated as having a blank section therebetween, but in reality, the first active section (A), the second active section (B), and the third active section (C) are continuous time sections, so that the active electrode can be switched from the first electrode pair (ch1) to the second electrode pair (ch2), and from the first electrode pair (ch2) to the second electrode pair (ch3) without a blank section.

Figure 6 illustrates the first, second, and third ratio information generated as step (305) of Figure 3 described above is performed.

The first ratio information is that the maximum value (Ch1_max) of the first variation in the first active section (A) is 33.3%. Therefore, the first variation in the first active section (A) can only be allocated in the range of 0 to 33.3%.

The second ratio information is the maximum value (Ch2_max) of the second variation in the second active section (B) as 66.6%. The second ratio information can be allocated to a larger value than the first ratio information. Therefore, the second variation in the second active section (B) can be allocated only in the range of 33.3% to 66.6%.

The third ratio information is the maximum value (Ch3_max) of the third variation in the third active section (C) as 100.0%. The third ratio information can be allocated to a larger value than the second ratio information. Therefore, the third variation in the third active section (C) can only be allocated in the range of 66.6% to 100.0%.

The specific range of changes described above may be set differently for convenience of work.

Although not shown in the drawing, after the first, second and third ratio information of FIG. 6 is generated, a step (307) is performed to generate continuous integrated ratio information in the integrated active section by applying an offset to at least one of the first, second and third ratio information.

This allows the integration ratio information to be continuous across the integrated active interval.

As a first example, a 100% offset can be applied to the second ratio information. Accordingly, the second ratio information can be converted to 100% even when the second variation is 0, and the second ratio information can be 200% when the second variation is the maximum value (Ch2_max). Accordingly, the integrated ratio information changes in the range of 0% to 200%.

As a second example, the first ratio information can be weighted by 0.5 times so that it can vary in the range of 0% to 50%, and the second ratio information can be weighted by 0.5 times and then a 50% offset can be applied. Accordingly, the second ratio information can be converted to 50% even when the second variation is 0, and the second ratio information can become 100% when it is the maximum value (Ch2_max) of the second variation. Accordingly, the integrated ratio information varies in the range of 0% to 100%.

Specifically, for the second example, if the first ratio information for the first electrode is 70%, it can be converted to 35% in the integrated ratio information by applying a weight of 0.5 times. And if the second ratio information for the second electrode is 30%, it can be converted to 15% by first applying a weight of 0.5 times. Then, since a 50% offset is applied, it can be converted to 65% in the integrated ratio information.

Figure 7 illustrates the generation of time-dependent slope information of integrated ratio information as step (309) of Figure 3 described above is performed.

Referring to Figure 7, the integrated ratio information is indicated by a red graph line. By calculating the trend line of this integrated ratio information, the linear graph function of the integrated ratio information can be calculated as y=8.9414x+17.596. From this graph function, the slope information can be obtained as 8.9414.

Afterwards, in step (311), the type of touch motion is specifically determined.

In general, the inclination criterion for distinguishing a touch motion from a slide motion in the first direction may be at a level of 3 to 4. In the example of Fig. 7, the inclination information is 8.9414, so the touch motion is identified as a slide motion in the first direction.

Although not shown in the drawing, if the touch of the first electrode and the touch of the second electrode are detected at almost the same time, the slope information of the integrated ratio information may be less than 3. In this case, the touch motion is identified as a tap motion.

When the touch motion is identified as a tap motion, the tap position of the tap motion can be identified according to the method described in step (313) described above.

When recognizing the type of touch motion of a button according to the method described above, there is an advantage in that accurate recognition of the type of touch motion is possible using relatively simple operations.

The above-described method of recognizing touch motion describes a method of recognizing for the first electrode pair and the second electrode pair, but even if other electrodes are added, the type of touch motion can be recognized in the same way.

Specifically, the button may include a third electrode pair further including first and second electrodes arranged in a second direction and fifth and sixth electrodes arranged in the first direction relative to each other. In this case, the signal processing unit identifies the touch motion for the third electrode pair in the same manner as the method for identifying the touch motion for the first and second electrode pairs.

And, if the signal processing unit identifies at least one of the touch motions for the first, second, and third electrode pairs as a slide motion, the touch motion for the button is identified as a slide motion. If the signal processing unit identifies all of the touch motions for the first, second, and third electrode pairs as a tap motion, the touch motion for the button itself is identified as a tap motion.

In the case of a button including electrodes arranged in a multiple array of three or more electrode pairs in the second direction by this method, there is an advantage in that when a slide motion is input at any position in the second direction, such input can be effectively recognized and identified.

The technical features disclosed in each embodiment of the present invention are not limited to that embodiment, and, unless they are mutually incompatible, the technical features disclosed in each embodiment may be combined and applied to different embodiments.

Therefore, each embodiment will focus on explaining each technical feature, but unless each technical feature is incompatible with each other, it can be applied in combination with each other.

The present invention is not limited to the above-described embodiments and the attached drawings, and various modifications and variations are possible from the viewpoint of those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be determined not only by the claims of this specification but also by the equivalents of these claims.

100: Button
210: 1st electrode pair
220: 2nd electrode pair
230: Third electrode pair
200: Signal Processing Unit

Claims (9)

a button comprising multiple electrodes; and
It includes a signal processing unit electrically connected to the button so as to measure the capacitance of the electrode according to the touch motion on the button,
The above button is,
A first electrode pair comprising first and second electrodes arranged in a first direction; and
A second electrode pair including the first and second electrodes and the third and fourth electrodes arranged in the second direction and arranged relative to each other in the first direction,
The above signal processing unit,
A step of generating a first change amount related to the change amount of capacitance of the first electrode pair according to the touch motion and a second change amount related to the change amount of capacitance of the second electrode pair;
A step of comparing the first and second change amounts to identify a first active section recognizing the first electrode pair as a touch-active electrode and a second active section recognizing the second electrode pair as a touch-active electrode, wherein the first and second active sections are continuous;
A step of generating first ratio information regarding a ratio of the first variation amount to a maximum value of the first variation amount in the first active section and second ratio information regarding a ratio of the second variation amount to a maximum value of the second variation amount in the second active section;
A step of generating integrated ratio information in an integrated active section by correcting at least one of the first and second ratio information, wherein the integrated active section includes the first and second active sections;
A step of identifying the touch motion as one of the slide motion and tap motion in the second direction based on the time-dependent change information of the integrated ratio information; and
If the touch motion is identified as a tap motion, a step of identifying one of the first and second electrode pairs as a tap position of the tap motion is included based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair.
Button module that identifies tab information and slide information. In the first paragraph,
The step of generating the above integrated ratio information is:
A step of modifying the first and second ratio information to be continuous in the integrated active section by applying an offset to at least one of the first and second ratio information.
Button module that identifies tab information and slide information. In the first paragraph,
The step of identifying one of the slide motion and tap motion in the second direction is:
A step of generating a trend line function of the above integrated ratio information;
A step of generating time-dependent slope information of the above trend line function; and
A step of determining time-dependent change information of the integrated ratio information based on the above slope information is included.
Button module that identifies tab information and slide information. In the first paragraph,
The above first active section is determined as a section in which the first change amount is greater than the second change amount,
The above second active section is determined as a section in which the second change amount is greater than the first change amount.
Button module that identifies tab information and slide information. In the first paragraph,
The point in time of the first active section is determined by the first change amount exceeding the point in time criterion for the first active section,
The end point of the second active interval is determined by the second change amount falling below the end point criterion for the second active interval.
Button module that identifies tab information and slide information. In the first paragraph,
The dividing point between the first and second active sections is determined by the second change amount exceeding the point in time criterion for the second active section.
Button module that identifies tab information and slide information. In the first paragraph,
The above identifying step is,
If the time length of the integrated active section is less than or equal to the time criterion even though the above slope information exceeds the above slope criterion, a step of identifying the touch motion as a tap is included.
Button module that identifies tab information and slide information. In the first paragraph,
The above button is,
Further comprising a third electrode pair including the first and second electrodes and a third electrode and a fourth electrode arranged in the second direction and arranged in the first direction relative to each other,
The above signal processing unit,
A step of identifying a touch motion for the third electrode pair in the same manner as the method of identifying a touch motion for the first electrode pair; and
If at least one of the touch motion for the first electrode pair, the touch motion for the second electrode pair, and the touch motion for the third electrode pair is identified as a slide motion, the method further includes a step of identifying the touch motion for the button as a slide motion.
Button module that identifies tab information and slide information. In a method for identifying tap information and slide information of a button by a signal processing unit,
The above button comprises a plurality of electrodes,
The above signal processing unit is electrically connected to the button so as to measure the capacitance of the electrode according to the touch motion on the button,
The above button is,
A first electrode pair comprising first and second electrodes arranged in a first direction; and
A second electrode pair including the first and second electrodes and the third and fourth electrodes arranged in the second direction and arranged relative to each other in the first direction,
A step of generating a first change amount related to the change amount of capacitance of the first electrode pair according to the touch motion and a second change amount related to the change amount of capacitance of the second electrode pair;
A step of comparing the first and second change amounts to identify a first active section recognizing the first electrode pair as a touch-active electrode and a second active section recognizing the second electrode pair as a touch-active electrode, wherein the first and second active sections are continuous;
A step of generating first ratio information regarding a ratio of the first variation amount to a maximum value of the first variation amount in the first active section and second ratio information regarding a ratio of the second variation amount to a maximum value of the second variation amount in the second active section;
A step of generating integrated ratio information in an integrated active section by correcting at least one of the first and second ratio information, wherein the integrated active section includes the first and second active sections;
A step of identifying the touch motion as one of the slide motion and tap motion in the second direction based on the time-dependent change information of the integrated ratio information; and
If the touch motion is identified as a tap motion, a step of identifying one of the first and second electrode pairs as a tap position of the tap motion is included based on information on the capacitance of the first electrode pair and information on the capacitance of the second electrode pair.
How to identify the tab information and slide information of a button.