WO2013053272A1 - Handheld device and method thereof for preventing false triggering of touch screen during call - Google Patents

Handheld device and method thereof for preventing false triggering of touch screen during call Download PDF

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Publication number
WO2013053272A1
WO2013053272A1 PCT/CN2012/080982 CN2012080982W WO2013053272A1 WO 2013053272 A1 WO2013053272 A1 WO 2013053272A1 CN 2012080982 W CN2012080982 W CN 2012080982W WO 2013053272 A1 WO2013053272 A1 WO 2013053272A1
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Prior art keywords
parameter
preset
touch screen
area
value
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PCT/CN2012/080982
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French (fr)
Chinese (zh)
Inventor
王亚辉
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惠州Tcl移动通信有限公司
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Publication of WO2013053272A1 publication Critical patent/WO2013053272A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

Definitions

  • the present invention relates to the field of touch screen terminal technologies, and in particular, to a handheld device and a method for preventing false triggering of a touch screen during a call.
  • touch screens have been widely used in mobile communication terminals and portable computers. Users can perform all functions of ordinary keyboards by clicking and swiping on the touch screen. Therefore, the touch screen can make human-computer interaction more straightforward.
  • the touch screen is in contact with the face or the head of the user, which may cause an erroneous operation and cause the call to be interrupted.
  • the usual solution is to use a proximity sensor on the touch-enabled handheld device to prevent the user from accidentally hang-up caused by contact between the face and the touch screen during the call, but the use of the proximity sensor not only increases the cost, but also because the proximity sensor needs
  • the infrared light-emitting tube is used in combination, and the size of the proximity sensor chip and peripheral devices (including the infrared emission tube) cannot be ignored.
  • the proximity sensor and the infrared transmitting tube need to control the transmission path of the infrared light, so the center distance between the two needs to be kept at about 4 mm, and the structural retaining wall should be used between the two.
  • the proximity sensor and the infrared transmitting tube need to be placed near the earpiece. Because of the transmission of light, it is necessary to open a hole in the outer casing of the handheld device. The above various kinds of designs increase the design and structure of the handheld device, and increase the production cost. .
  • the technical problem to be solved by the present invention is to provide a handheld device and a method for preventing false triggering of a touch screen during a call to solve the above problem.
  • a technical solution adopted by the present invention to solve the technical problem is to provide a method for preventing false triggering of a touch screen during a call of a handheld device, the method comprising the following steps: a. Detecting a call state of the handheld device, and adjusting a sensitivity of the touch screen from a direct contact sensitivity to a proximity sensitivity when the handheld device starts a call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; b. Detecting a capacitance change value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area; c.
  • the touch screen is a mutual capacitive touch screen, and in the step b, scanning the row electrode and the column electrode to obtain multiple The capacitance change value of the intersection of the row electrode and the column electrode compares a plurality of the capacitance change values with the proximity sensing sensitivity, and selects the capacitance change greater than or equal to the proximity sensing sensitivity a value, thereby obtaining coordinate values of a plurality of the row electrodes and the column electrode intersections corresponding to the capacitance change value greater than or equal to the proximity sensing sensitivity, through a plurality of the row electrodes and the column electrodes And acquiring, by the coordinate value of the intersection, the random graphic parameter corresponding to the touch area; the parameter of the random graphic generated by the touch event is a position parameter and an area value, and the preset parameter is a preset position range and a preset area.
  • the parameters of the random graphic generated by the touch event are a position parameter and a contour parameter, wherein the preset parameter is a preset position range and a preset graphic contour, and the position parameter of the random graphic is in the The touch screen is locked when the preset position range is within the range and the contour parameter of the random pattern matches the preset graphic contour.
  • the touch screen is a mutual capacitive touch screen.
  • the capacitance change values of the intersections of the row electrodes and the column electrodes are obtained by scanning the row electrodes and the column electrodes. And comparing a plurality of the capacitance change values to the proximity sensing sensitivity, and selecting the capacitance change value that is greater than or equal to the proximity sensing sensitivity, thereby obtaining the capacitance change value that is greater than or equal to the proximity sensing sensitivity.
  • the parameter of the random pattern generated by the touch event is a position parameter
  • the position parameter is obtained by calculating coordinates of a center position of a plurality of coordinate points of the row electrode and the column electrode
  • the preset parameter is a pre-predetermined parameter. Setting a range of positions, the step c further includes comparing the position parameter with the preset position range, and when the position parameter of the random pattern is in the preset position range, locking the touch screen, wherein
  • the preset position range includes an area of the touch screen near an earpiece of the handheld device or an on-hook key area of the touch screen.
  • the parameter of the random pattern generated by the touch event is an area value, and the area value is obtained by calculating an area enclosed by a plurality of coordinate values of the row electrode and the column electrode intersection.
  • the preset parameter is a preset area value
  • the step c further includes comparing the area value with the preset area value, and when the area value of the random pattern is greater than or equal to the preset area value, locking the location.
  • the preset area value is an area surrounded by a contour of a human ear, a half of a width of the touch screen is an area of a square of a side length, or an area of 1.5 times of an on-hook key area of the touch screen.
  • the parameter of the random pattern generated by the touch event is a contour feature
  • the contour feature is obtained by a contour extraction feature shape in which a plurality of coordinate values of the row electrode and the column electrode intersection are connected to each other.
  • the preset parameter is a preset contour feature
  • the step c further comprises comparing the contour feature with the preset contour feature, when the contour feature of the random graphic matches the preset contour feature Locking the touch screen, wherein the preset contour feature is a human ear contour feature or a face ear joint contour feature.
  • Another technical solution adopted by the present invention to solve the technical problem is to provide a method for preventing false triggering of a touch screen during a call of a handheld device, and the method includes the following steps: a. Detecting the call state of the handheld device, and adjusting the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity when the handheld device starts the call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; b. Detecting a capacitance value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area; c. The random graphic parameters are compared with the preset parameters, and the touch screen is locked according to the comparison result.
  • the touch screen is a mutual capacitive touch screen.
  • step b by scanning the row electrode and the column electrode, a capacitance change value of a plurality of row electrode and column electrode intersection points is obtained, and a plurality of capacitance change values are compared with proximity sensing sensitivity. a size from which a capacitance change value greater than or equal to the proximity sensing sensitivity is selected, thereby obtaining coordinate values of a plurality of row electrode and column electrode intersection points corresponding to a capacitance change value greater than or equal to the proximity sensing sensitivity, through a plurality of row electrodes and columns The coordinate values of the electrode intersections acquire the random pattern parameters corresponding to the touch area.
  • the parameter of the random pattern generated by the touch event is a position parameter
  • the position parameter is obtained by calculating the coordinate of the central position of the coordinate values of the plurality of row electrodes and the column electrode
  • the preset parameter is a preset position range
  • the step c further includes the position.
  • the parameter is compared with the preset position range, and when the position parameter of the random pattern is in the preset position range, the touch screen is locked, wherein the preset position range includes an area of the touch screen near the earpiece of the handheld device or an on-hook key area of the touch screen.
  • the parameter of the random pattern generated by the touch event is an area value
  • the area value is obtained by calculating the area of the graph surrounded by the coordinate values of the intersection points of the plurality of row electrodes and the column electrodes
  • the preset parameter is the preset area value
  • the step further includes comparing the area value with the preset area value, and locking the touch screen when the area value of the random pattern is greater than or equal to the preset area value, wherein the preset area value is an area enclosed by the contour of the human ear, and half of the width of the touch screen is The area of the square of the side length or the area of 1.5 times the area of the on-hook key of the touch screen.
  • the parameter of the random pattern generated by the touch event is a contour feature
  • the contour feature is obtained by extracting the shape feature of the contour of the intersection of the plurality of row electrodes and the column electrode intersection points
  • the preset parameter is a preset contour feature.
  • the step c further includes comparing the contour feature with the preset contour feature, and locking the touch screen when the contour feature of the random graphic matches the preset contour feature, wherein the preset contour feature is a human ear contour feature or a face ear connection Outline features.
  • the parameters of the random pattern generated by the touch event are position parameters and area values
  • the preset parameters are preset position ranges and preset area values
  • the position parameters of the random patterns are within the preset position range
  • the area values of the random patterns are When the preset area value is greater than or equal to, the touch screen is locked.
  • the parameters of the random graphic generated by the touch event are a position parameter and a contour parameter
  • the preset parameter is a preset position range and a preset graphic contour
  • the position parameter of the random graphic is within a preset position range
  • the contour parameter of the random graphic Locks the touch screen when it matches the preset graphic outline.
  • step b is continued.
  • step c is continued.
  • step a is performed.
  • the touch screen is unlocked, and the sensitivity of the touch screen is adjusted from the proximity sensing sensitivity to the direct contact sensitivity.
  • a handheld device including: a baseband processor and a touch screen, the touch screen includes a driving chip, and the baseband processor controls the driving chip to detect the calling state of the handheld device, and the handheld device is turned on.
  • the sensitivity of the touch screen is adjusted from the direct contact sensitivity to the proximity sensitivity, wherein the proximity sensitivity is greater than the direct contact sensitivity;
  • the touch screen detects the capacitance change value, and compares the capacitance change value with the proximity sensitivity to obtain the touch area corresponding to Random graphic parameters;
  • the baseband processor compares the random graphic parameters with the preset parameters, and locks the touch screen according to the comparison result.
  • the touch screen further includes a touch panel, and the driving chip scans the row electrode and the column electrode of the touch panel to obtain a capacitance change value of a plurality of row electrode and column electrode intersection points, and compares the plurality of capacitance change values with the proximity sensing sensitivity.
  • the coordinate values of the plurality of row electrode and column electrode intersections corresponding to the capacitance change value close to the sensing sensitivity are obtained, and the random pattern parameters corresponding to the touch region are obtained by the coordinate values of the plurality of row electrode and column electrode intersections.
  • the handheld device provided by the present invention and the method for preventing false triggering of the touch screen during the call process can adjust the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity, and the touch screen senses the proximity of the sensing region to realize the touch screen. Locked to avoid false triggering of the hook during the call, reducing the design difficulty and cost of the handheld device.
  • FIG. 1 is a flow chart of a method for preventing a false trigger of a touch screen during a call of a handheld device according to a preferred embodiment of the present invention.
  • FIG. 2 is a block diagram showing the structure of a handheld device in accordance with a preferred embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for preventing a false trigger of a touch screen during a call of a handheld device according to a preferred embodiment of the present invention.
  • a method for preventing a false trigger of a touch screen during a call of a handheld device includes the following steps:
  • Step 101 Detect a call state of the handheld device, and adjust the sensitivity of the touch screen from a direct contact sensitivity to a proximity sensitivity when the handheld device turns on the call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity;
  • Step 102 detecting a capacitance value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area;
  • Step 103 Compare the random graphic parameter with the preset parameter, and lock the touch screen according to the comparison result.
  • step 102 by scanning the row electrode and the column electrode, a capacitance change value of a plurality of row electrode and column electrode intersection points is obtained, and a plurality of capacitance change values are compared with proximity sensing sensitivity, and a value greater than or equal to a capacitance change value close to the sensing sensitivity, thereby obtaining coordinate values of a plurality of row electrode and column electrode intersection points corresponding to a capacitance change value greater than or equal to the proximity sensing sensitivity, obtained by coordinate values of a plurality of row electrode and column electrode intersection points Touch the random graphic parameters corresponding to the area.
  • step 102 is continued.
  • step 103 is continued.
  • the touch screen is unlocked and step 101 is performed.
  • the touch screen is unlocked, and the sensitivity of the touch screen is adjusted from the proximity sensing sensitivity to the direct contact sensitivity.
  • the proximity sensing sensitivity can be obtained by the touch screen test of different handheld devices. For example, in the state where the sensing area is not close to the touch screen, the capacitance between the two intersecting electrode signal lines of the same detection point is about 1 to 2 pf, and the sensing area is in contact. When the capacitance change value is about 0.3pf (for direct contact sensitivity), if it passes the test, the capacitance change value is about 0.2pf when the sensing area is 2cm away from the touch screen, that is, the proximity sensing sensitivity can be set to 0.2pf.
  • the sensitivity of the proximity sensing can be set according to the actual needs of the proximity detection application, for example, the proximity detection distance can be set to about 2 cm, 3 cm, and the like.
  • the parameter of the random pattern generated by the touch event is a position parameter
  • the position parameter is obtained by calculating the coordinate of the central position of the coordinate values of the plurality of row electrodes and the column electrode
  • the preset parameter is a preset position range.
  • the step 103 further includes comparing the position parameter with the preset position range, and locking the touch screen when the position parameter of the random pattern is in the preset position range, wherein the preset position range includes an area of the touch screen near the earpiece of the handheld device or an on-hook of the touch screen Key area.
  • the parameter of the random pattern generated by the touch event is an area value
  • the area value is calculated by the area of the graph surrounded by the coordinate values of the intersections of the plurality of row electrodes and the column electrodes.
  • the preset parameter is a preset area value
  • the step 103 further comprises comparing the area value with the preset area value.
  • the touch screen is locked, wherein the preset area value is a human ear.
  • the area enclosed by the outline, half of the width of the touch screen is the area of the square of the side length or 1.5 times the area of the on-hook key area of the touch screen.
  • the parameter of the random pattern generated by the touch event is a contour feature
  • the contour feature is obtained by extracting the shape feature of the contour of the intersection of the plurality of row electrode and the column electrode intersection point
  • the preset parameter is a preset contour feature
  • the step further includes comparing the contour feature to the preset contour feature, and locking the touch screen when the contour feature of the random pattern matches the preset contour feature, wherein the preset contour feature is a human ear contour feature or a face ear connection contour feature.
  • the parameters of the random pattern generated by the touch event are the position parameter and the area value
  • the preset parameter is the preset position range and the preset area value
  • the position parameter of the random pattern is within the preset position range
  • the area value of the random pattern is greater than or equal to When the area value is preset, the touch screen is locked.
  • the parameters of the random graph generated by the touch event are the position parameter and the contour parameter
  • the preset parameter is the preset position range and the preset graphic contour
  • the position parameter of the random graphic is within the preset position range
  • FIG. 2 is a schematic structural diagram of a circuit of a handheld device according to a preferred embodiment of the present invention.
  • the handheld device 20 includes a baseband processor 22 and a touch screen 24, which are connected to each other.
  • the touch screen 24 includes a driving chip 240 and a touch panel 242.
  • the touch action is generated on the touch panel 242.
  • the baseband processor 22 controls the driving chip 240 to detect the call state of the handheld device.
  • the sensitivity of the touch screen 24 is directly contacted.
  • the sensitivity is adjusted to the proximity sensing sensitivity, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity;
  • the touch screen 24 detects the capacitance change value, compares the capacitance change value with the proximity sensing sensitivity, and acquires a random graphic parameter corresponding to the touch region;
  • the baseband processor 22 The random graphic parameters are compared with the preset parameters, and the touch screen 24 is locked according to the comparison result.
  • the driving chip 240 scans the row electrode and the column electrode of the touch panel 242 to obtain a capacitance change value of a plurality of row electrode and column electrode intersection points, and compares the plurality of capacitance change values with the proximity sensing sensitivity to obtain a value greater than or equal to
  • the coordinate values of the intersections of the plurality of row electrodes and the column electrodes corresponding to the capacitance change values of the sensing sensitivity acquire the random pattern parameters corresponding to the touch regions by the coordinate values of the intersections of the plurality of row electrodes and the column electrodes.
  • the handheld device provided by the present invention and the method for preventing false triggering of the touch screen during the call process can adjust the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity, and the touch screen senses the proximity of the sensing region to realize the touch screen. Locked to avoid false triggering of the hook during the call, reducing the design difficulty and cost of the handheld device.

Abstract

Disclosed is a method of a handheld device for preventing false triggering of a touch screen during a call, comprising the steps: adjusting sensitivity of a touch screen from direct-contact sensitivity to proximity sensing sensitivity; and comparing a capacitance change value with the proximity sensing sensitivity, comparing a random pattern parameter with a preset parameter, and locking the touch screen according to a comparison result. Also disclosed is a handheld device. The technical solution provided by the present invention can effectively avoid on-hook incurred by false triggering during a call.

Description

手持设备及其通话过程中防止触摸屏误触发的方法 Handheld device and method for preventing false triggering of touch screen during call 技术领域Technical field
本发明涉及触摸屏终端技术领域，特别是涉及一种手持设备及其通话过程中防止触摸屏误触发的方法。The present invention relates to the field of touch screen terminal technologies, and in particular, to a handheld device and a method for preventing false triggering of a touch screen during a call.
背景技术Background technique
近年来，触摸屏已普遍应用于移动通讯终端以及便携计算机上，用户通过在触摸屏上进行点击、划动等操作，可以完成普通键盘的全部功能，因此，触摸屏可使得人机交互更为直截了当。In recent years, touch screens have been widely used in mobile communication terminals and portable computers. Users can perform all functions of ordinary keyboards by clicking and swiping on the touch screen. Therefore, the touch screen can make human-computer interaction more straightforward.
但是在手持设备的通话过程中，触摸屏与用户的脸部或者头部相接触容易引起误操作而导致通话中断。通常的解决办法是，具有触摸功能的手持设备上都会使用一个接近传感器用于防止用户通话过程中脸部与触摸屏接触引起的误挂机，但是使用接近传感器不但增加了成本，而且由于接近传感器需要与红外发光管配合使用，接近传感器芯片和周边器件（包括红外发射管）的尺寸不能忽略不计。再加上接近传感器和红外发射管需要对红外光的传输路径进行控制，所以两者之间的中心距离需要保持在4mm左右，两者之间要做结构挡墙。另外接近传感器和红外发射管还需要放置在听筒附近，由于有光的传输，需要在手持设备的的外壳上开洞，以上种种增加了手持设备的外观和结构的设计难度，也增加了生产成本。However, during the conversation of the handheld device, the touch screen is in contact with the face or the head of the user, which may cause an erroneous operation and cause the call to be interrupted. The usual solution is to use a proximity sensor on the touch-enabled handheld device to prevent the user from accidentally hang-up caused by contact between the face and the touch screen during the call, but the use of the proximity sensor not only increases the cost, but also because the proximity sensor needs The infrared light-emitting tube is used in combination, and the size of the proximity sensor chip and peripheral devices (including the infrared emission tube) cannot be ignored. In addition, the proximity sensor and the infrared transmitting tube need to control the transmission path of the infrared light, so the center distance between the two needs to be kept at about 4 mm, and the structural retaining wall should be used between the two. In addition, the proximity sensor and the infrared transmitting tube need to be placed near the earpiece. Because of the transmission of light, it is necessary to open a hole in the outer casing of the handheld device. The above various kinds of designs increase the design and structure of the handheld device, and increase the production cost. .
因此，亟需提供一种手持设备及其触摸屏的误触摸处理方法，以消除误触摸所产生的影响。Therefore, there is a need to provide a method for handling touches of handheld devices and their touch screens to eliminate the effects of false touches.
技术问题technical problem
本发明主要解决的技术问题是提供一种手持设备及其通话过程中防止触摸屏误触发的方法，以解决上述问题。The technical problem to be solved by the present invention is to provide a handheld device and a method for preventing false triggering of a touch screen during a call to solve the above problem.
技术解决方案Technical solution
本发明为解决技术问题而采用的一个技术方案是：提供一种手持设备通话过程中防止触摸屏误触发的方法，所述方法包括以下步骤：a. 检测手持设备通话状态，在所述手持设备开启通话时，将所述触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，所述接近感应灵敏度大于所述直接接触灵敏度；b. 检测所述触摸屏的电容变化值，将所述电容变化值与所述接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；c. 将所述随机图形参数与预设参数进行比较，根据比较结果锁定所述触摸屏；所述触摸屏为互电容式触摸屏，在所述b步骤中，通过对行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的所述电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较大小，从中选出大于等于所述接近感应灵敏度的所述电容变化值，进而获得与大于等于所述接近感应灵敏度的所述电容变化值相对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数；所述触摸事件产生的随机图形的参数为位置参数和面积值，所述预设参数为预设位置范围和预设面积值，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏；所述触摸事件产生的随机图形的参数为位置参数和轮廓参数，所述预设参数为预设位置范围和预设图形轮廓，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的轮廓参数与所述预设图形轮廓相匹配时，锁定所述触摸屏。A technical solution adopted by the present invention to solve the technical problem is to provide a method for preventing false triggering of a touch screen during a call of a handheld device, the method comprising the following steps: a. Detecting a call state of the handheld device, and adjusting a sensitivity of the touch screen from a direct contact sensitivity to a proximity sensitivity when the handheld device starts a call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; b. Detecting a capacitance change value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area; c. Comparing the random graphic parameter with a preset parameter, and locking the touch screen according to the comparison result; the touch screen is a mutual capacitive touch screen, and in the step b, scanning the row electrode and the column electrode to obtain multiple The capacitance change value of the intersection of the row electrode and the column electrode compares a plurality of the capacitance change values with the proximity sensing sensitivity, and selects the capacitance change greater than or equal to the proximity sensing sensitivity a value, thereby obtaining coordinate values of a plurality of the row electrodes and the column electrode intersections corresponding to the capacitance change value greater than or equal to the proximity sensing sensitivity, through a plurality of the row electrodes and the column electrodes And acquiring, by the coordinate value of the intersection, the random graphic parameter corresponding to the touch area; the parameter of the random graphic generated by the touch event is a position parameter and an area value, and the preset parameter is a preset position range and a preset area. a value, a position parameter of the random pattern is within the preset position range, and an area value of the random pattern is greater than or equal to the preset area And locking the touch screen; the parameters of the random graphic generated by the touch event are a position parameter and a contour parameter, wherein the preset parameter is a preset position range and a preset graphic contour, and the position parameter of the random graphic is in the The touch screen is locked when the preset position range is within the range and the contour parameter of the random pattern matches the preset graphic contour.
其中，所述触摸屏为互电容式触摸屏，在所述b步骤中，通过对行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的所述电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较大小，从中选出大于等于所述接近感应灵敏度的所述电容变化值，进而获得与大于等于所述接近感应灵敏度的所述电容变化值相对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数。The touch screen is a mutual capacitive touch screen. In the step b, the capacitance change values of the intersections of the row electrodes and the column electrodes are obtained by scanning the row electrodes and the column electrodes. And comparing a plurality of the capacitance change values to the proximity sensing sensitivity, and selecting the capacitance change value that is greater than or equal to the proximity sensing sensitivity, thereby obtaining the capacitance change value that is greater than or equal to the proximity sensing sensitivity. Corresponding a plurality of coordinate values of the row electrode and the column electrode intersection point, and acquiring the random pattern parameter corresponding to the touch area by a plurality of coordinate values of the row electrode and the column electrode intersection point.
其中，所述触摸事件产生的随机图形的参数为位置参数，所述位置参数由多个所述行电极和所述列电极交叉点的坐标值计算中心位置坐标获得，所述预设参数为预设位置范围，所述c步骤进一步包括将所述位置参数与所述预设位置范围进行比较，当所述随机图形的位置参数在所述预设位置范围时，锁定所述触摸屏，其中，所述预设位置范围包括所述触摸屏靠近所述手持设备的听筒的区域或者所述触摸屏的挂机键区域。The parameter of the random pattern generated by the touch event is a position parameter, and the position parameter is obtained by calculating coordinates of a center position of a plurality of coordinate points of the row electrode and the column electrode, and the preset parameter is a pre-predetermined parameter. Setting a range of positions, the step c further includes comparing the position parameter with the preset position range, and when the position parameter of the random pattern is in the preset position range, locking the touch screen, wherein The preset position range includes an area of the touch screen near an earpiece of the handheld device or an on-hook key area of the touch screen.
其中，所述触摸事件产生的随机图形的参数为面积值，所述面积值由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的面积计算获得，所述预设参数为预设面积值，所述c步骤进一步包括将所述面积值与所述预设面积值进行比较，当所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏，其中，所述预设面积值为人耳轮廓所包围的面积、所述触摸屏宽度的一半为边长的正方形的面积或者所述触摸屏的挂机键区域的1.5倍的面积。The parameter of the random pattern generated by the touch event is an area value, and the area value is obtained by calculating an area enclosed by a plurality of coordinate values of the row electrode and the column electrode intersection. The preset parameter is a preset area value, and the step c further includes comparing the area value with the preset area value, and when the area value of the random pattern is greater than or equal to the preset area value, locking the location The touch screen, wherein the preset area value is an area surrounded by a contour of a human ear, a half of a width of the touch screen is an area of a square of a side length, or an area of 1.5 times of an on-hook key area of the touch screen.
其中，所述触摸事件产生的随机图形的参数为轮廓特征，所述轮廓特征由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的轮廓提取形状特征获得，所述预设参数为预设轮廓特征，所述c步骤进一步包括将所述轮廓特征与所述预设轮廓特征进行比较，当所述随机图形的轮廓特征与所述预设轮廓特征相匹配时，锁定所述触摸屏，其中，所述预设轮廓特征为人耳轮廓特征或者脸耳连接部轮廓特征。The parameter of the random pattern generated by the touch event is a contour feature, and the contour feature is obtained by a contour extraction feature shape in which a plurality of coordinate values of the row electrode and the column electrode intersection are connected to each other. The preset parameter is a preset contour feature, and the step c further comprises comparing the contour feature with the preset contour feature, when the contour feature of the random graphic matches the preset contour feature Locking the touch screen, wherein the preset contour feature is a human ear contour feature or a face ear joint contour feature.
本发明为解决技术问题而采用的另外一个技术方案是：提供一种手持设备通话过程中防止触摸屏误触发的方法，方法包括以下步骤：a. 检测手持设备通话状态，在手持设备开启通话时，将触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，接近感应灵敏度大于直接接触灵敏度；b. 检测触摸屏的电容值，将电容变化值与接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；c. 将随机图形参数与预设参数进行比较，根据比较结果锁定触摸屏。Another technical solution adopted by the present invention to solve the technical problem is to provide a method for preventing false triggering of a touch screen during a call of a handheld device, and the method includes the following steps: a. Detecting the call state of the handheld device, and adjusting the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity when the handheld device starts the call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; b. Detecting a capacitance value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area; c. The random graphic parameters are compared with the preset parameters, and the touch screen is locked according to the comparison result.
其中，触摸屏为互电容式触摸屏，在b步骤中，通过对行电极和列电极的扫描，得到多个行电极和列电极交叉点的电容变化值，将多个电容变化值与接近感应灵敏度比较大小，从中选出大于等于接近感应灵敏度的电容变化值，进而获得与大于等于接近感应灵敏度的电容变化值相对应的多个行电极和列电极交叉点的坐标值，通过多个行电极和列电极交叉点的坐标值获取触摸区域所对应的随机图形参数。The touch screen is a mutual capacitive touch screen. In step b, by scanning the row electrode and the column electrode, a capacitance change value of a plurality of row electrode and column electrode intersection points is obtained, and a plurality of capacitance change values are compared with proximity sensing sensitivity. a size from which a capacitance change value greater than or equal to the proximity sensing sensitivity is selected, thereby obtaining coordinate values of a plurality of row electrode and column electrode intersection points corresponding to a capacitance change value greater than or equal to the proximity sensing sensitivity, through a plurality of row electrodes and columns The coordinate values of the electrode intersections acquire the random pattern parameters corresponding to the touch area.
其中，触摸事件产生的随机图形的参数为位置参数，位置参数由多个行电极和列电极交叉点的坐标值计算中心位置坐标获得，预设参数为预设位置范围，c步骤进一步包括将位置参数与预设位置范围进行比较，当随机图形的位置参数在预设位置范围时，锁定触摸屏，其中，预设位置范围包括触摸屏靠近手持设备的听筒的区域或者触摸屏的挂机键区域。The parameter of the random pattern generated by the touch event is a position parameter, and the position parameter is obtained by calculating the coordinate of the central position of the coordinate values of the plurality of row electrodes and the column electrode, the preset parameter is a preset position range, and the step c further includes the position. The parameter is compared with the preset position range, and when the position parameter of the random pattern is in the preset position range, the touch screen is locked, wherein the preset position range includes an area of the touch screen near the earpiece of the handheld device or an on-hook key area of the touch screen.
其中，触摸事件产生的随机图形的参数为面积值，面积值由多个行电极和列电极交叉点的坐标值相互连接所围成图形的面积计算获得，预设参数为预设面积值，c步骤进一步包括将面积值与预设面积值进行比较，当随机图形的面积值大于等于预设面积值时，锁定触摸屏，其中，预设面积值为人耳轮廓所包围的面积、触摸屏宽度的一半为边长的正方形的面积或者触摸屏的挂机键区域的1.5倍的面积。The parameter of the random pattern generated by the touch event is an area value, and the area value is obtained by calculating the area of the graph surrounded by the coordinate values of the intersection points of the plurality of row electrodes and the column electrodes, and the preset parameter is the preset area value, c The step further includes comparing the area value with the preset area value, and locking the touch screen when the area value of the random pattern is greater than or equal to the preset area value, wherein the preset area value is an area enclosed by the contour of the human ear, and half of the width of the touch screen is The area of the square of the side length or the area of 1.5 times the area of the on-hook key of the touch screen.
其中，触摸事件产生的随机图形的参数为轮廓特征，轮廓特征由多个行电极和列电极交叉点的坐标值相互连接所围成图形的轮廓提取形状特征获得，预设参数为预设轮廓特征，c步骤进一步包括将轮廓特征与预设轮廓特征进行比较，当随机图形的轮廓特征与预设轮廓特征相匹配时，锁定所述触摸屏，其中，预设轮廓特征为人耳轮廓特征或者脸耳连接部轮廓特征。The parameter of the random pattern generated by the touch event is a contour feature, and the contour feature is obtained by extracting the shape feature of the contour of the intersection of the plurality of row electrodes and the column electrode intersection points, and the preset parameter is a preset contour feature. The step c further includes comparing the contour feature with the preset contour feature, and locking the touch screen when the contour feature of the random graphic matches the preset contour feature, wherein the preset contour feature is a human ear contour feature or a face ear connection Outline features.
其中，触摸事件产生的随机图形的参数为位置参数和面积值，预设参数为预设位置范围和预设面积值，在随机图形的位置参数在预设位置范围内，并且随机图形的面积值大于等于预设面积值时，锁定触摸屏。The parameters of the random pattern generated by the touch event are position parameters and area values, the preset parameters are preset position ranges and preset area values, the position parameters of the random patterns are within the preset position range, and the area values of the random patterns are When the preset area value is greater than or equal to, the touch screen is locked.
其中，触摸事件产生的随机图形的参数为位置参数和轮廓参数，预设参数为预设位置范围和预设图形轮廓，在随机图形的位置参数在预设位置范围内，并且随机图形的轮廓参数与预设图形轮廓相匹配时，锁定触摸屏。The parameters of the random graphic generated by the touch event are a position parameter and a contour parameter, the preset parameter is a preset position range and a preset graphic contour, the position parameter of the random graphic is within a preset position range, and the contour parameter of the random graphic Locks the touch screen when it matches the preset graphic outline.
其中，锁定触摸屏后，继续执行b步骤，当随机图形参数存在时，继续执行c步骤，当随机图形参数为空时，解锁触摸屏并执行a步骤。After the touch screen is locked, the step b is continued. When the random graphic parameter exists, the c step is continued. When the random graphic parameter is empty, the touch screen is unlocked and step a is performed.
其中，在手持设备通话结束时，解锁触摸屏，将触摸屏的灵敏度从接近感应灵敏度调整到直接接触灵敏度。Wherein, when the handheld device ends the call, the touch screen is unlocked, and the sensitivity of the touch screen is adjusted from the proximity sensing sensitivity to the direct contact sensitivity.
本发明为解决技术问题而采用的另外一个技术方案是：提供一种手持设备，包括：基带处理器和触摸屏，触摸屏包括驱动芯片，基带处理器控制驱动芯片检测手持设备通话状态，在手持设备开启通话时，将触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，接近感应灵敏度大于直接接触灵敏度；触摸屏检测电容变化值，将电容变化值与接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；基带处理器将随机图形参数与预设参数进行比较，根据比较结果锁定触摸屏。Another technical solution adopted by the present invention to solve the technical problem is to provide a handheld device, including: a baseband processor and a touch screen, the touch screen includes a driving chip, and the baseband processor controls the driving chip to detect the calling state of the handheld device, and the handheld device is turned on. During the call, the sensitivity of the touch screen is adjusted from the direct contact sensitivity to the proximity sensitivity, wherein the proximity sensitivity is greater than the direct contact sensitivity; the touch screen detects the capacitance change value, and compares the capacitance change value with the proximity sensitivity to obtain the touch area corresponding to Random graphic parameters; the baseband processor compares the random graphic parameters with the preset parameters, and locks the touch screen according to the comparison result.
其中，触摸屏还包括触摸板，驱动芯片通过对触摸板的行电极和列电极的扫描，得到多个行电极和列电极交叉点的电容变化值，将多个电容变化值与接近感应灵敏度比较，得到大于等于接近感应灵敏度的电容变化值所对应的多个行电极和列电极交叉点的坐标值，通过多个行电极和列电极交叉点的坐标值获取触摸区域所对应的随机图形参数。The touch screen further includes a touch panel, and the driving chip scans the row electrode and the column electrode of the touch panel to obtain a capacitance change value of a plurality of row electrode and column electrode intersection points, and compares the plurality of capacitance change values with the proximity sensing sensitivity. The coordinate values of the plurality of row electrode and column electrode intersections corresponding to the capacitance change value close to the sensing sensitivity are obtained, and the random pattern parameters corresponding to the touch region are obtained by the coordinate values of the plurality of row electrode and column electrode intersections.
有益效果 Beneficial effect
区别于现有技术，本发明提供的手持设备及其通话过程中防止触摸屏误触发的方法通过将触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，触摸屏感应到感应区域的靠近，实现对触摸屏的锁定，避免通话过程中误触发挂机，降低了手持设备的设计难度和成本。Different from the prior art, the handheld device provided by the present invention and the method for preventing false triggering of the touch screen during the call process can adjust the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity, and the touch screen senses the proximity of the sensing region to realize the touch screen. Locked to avoid false triggering of the hook during the call, reducing the design difficulty and cost of the handheld device.
附图说明DRAWINGS
图1是根据本发明一较佳实施例的手持设备通话过程中防止触摸屏误触发的方法的流程图。1 is a flow chart of a method for preventing a false trigger of a touch screen during a call of a handheld device according to a preferred embodiment of the present invention.
图2是根据本发明一较佳实施例的手持设备电路结构示意图。2 is a block diagram showing the structure of a handheld device in accordance with a preferred embodiment of the present invention.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
请参阅图1，图1是根据本发明一较佳实施例的手持设备通话过程中防止触摸屏误触发的方法的流程图。如图1所示，在本实施例中，手持设备通话过程中防止触摸屏误触发的方法包括以下步骤：Please refer to FIG. 1. FIG. 1 is a flowchart of a method for preventing a false trigger of a touch screen during a call of a handheld device according to a preferred embodiment of the present invention. As shown in FIG. 1 , in this embodiment, a method for preventing a false trigger of a touch screen during a call of a handheld device includes the following steps:
步骤101，检测手持设备通话状态，在手持设备开启通话时，将触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，接近感应灵敏度大于直接接触灵敏度；Step 101: Detect a call state of the handheld device, and adjust the sensitivity of the touch screen from a direct contact sensitivity to a proximity sensitivity when the handheld device turns on the call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity;
步骤102，检测触摸屏的电容值，将电容变化值与接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数； Step 102, detecting a capacitance value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area;
步骤103，将随机图形参数与预设参数进行比较，根据比较结果锁定触摸屏。Step 103: Compare the random graphic parameter with the preset parameter, and lock the touch screen according to the comparison result.
其中，在102步骤中，通过对行电极和列电极的扫描，得到多个行电极和列电极交叉点的电容变化值，将多个电容变化值与接近感应灵敏度比较大小，从中选出大于等于接近感应灵敏度的电容变化值，进而获得与大于等于接近感应灵敏度的电容变化值相对应的多个行电极和列电极交叉点的坐标值，通过多个行电极和列电极交叉点的坐标值获取触摸区域所对应的随机图形参数。Wherein, in step 102, by scanning the row electrode and the column electrode, a capacitance change value of a plurality of row electrode and column electrode intersection points is obtained, and a plurality of capacitance change values are compared with proximity sensing sensitivity, and a value greater than or equal to a capacitance change value close to the sensing sensitivity, thereby obtaining coordinate values of a plurality of row electrode and column electrode intersection points corresponding to a capacitance change value greater than or equal to the proximity sensing sensitivity, obtained by coordinate values of a plurality of row electrode and column electrode intersection points Touch the random graphic parameters corresponding to the area.
锁定触摸屏后，继续执行102步骤，当随机图形参数存在时，继续执行103步骤，当随机图形参数为空时，解锁触摸屏并执行101步骤。在手持设备通话结束时，解锁触摸屏，将触摸屏的灵敏度从接近感应灵敏度调整到直接接触灵敏度。After the touch screen is locked, step 102 is continued. When the random graphic parameter exists, step 103 is continued. When the random graphic parameter is empty, the touch screen is unlocked and step 101 is performed. At the end of the call of the handheld device, the touch screen is unlocked, and the sensitivity of the touch screen is adjusted from the proximity sensing sensitivity to the direct contact sensitivity.
接近感应灵敏度可以通过不同的手持设备的触摸屏测试得到，例如，通常触摸屏在没有感应区域靠近的状态下，同一个检测点两条交叉的电极信号线间的电容大约为1～2pf，感应区域接触时，电容变化值大约0.3pf（为直接接触灵敏度），如果通过测试，感应区域距离触摸屏2厘米时电容变化值大约0.2pf，即可以设定接近感应灵敏度为0.2pf。接近感应的灵敏度可以根据接近检测应用的实际需要设定，例如，可设接近检测距离大约2厘米，3厘米等等。The proximity sensing sensitivity can be obtained by the touch screen test of different handheld devices. For example, in the state where the sensing area is not close to the touch screen, the capacitance between the two intersecting electrode signal lines of the same detection point is about 1 to 2 pf, and the sensing area is in contact. When the capacitance change value is about 0.3pf (for direct contact sensitivity), if it passes the test, the capacitance change value is about 0.2pf when the sensing area is 2cm away from the touch screen, that is, the proximity sensing sensitivity can be set to 0.2pf. The sensitivity of the proximity sensing can be set according to the actual needs of the proximity detection application, for example, the proximity detection distance can be set to about 2 cm, 3 cm, and the like.
在本发明的实施例中，触摸事件产生的随机图形的参数为位置参数，位置参数由多个行电极和列电极交叉点的坐标值计算中心位置坐标获得，预设参数为预设位置范围，103步骤进一步包括将位置参数与预设位置范围进行比较，当随机图形的位置参数在预设位置范围时，锁定触摸屏，其中，预设位置范围包括触摸屏靠近手持设备的听筒的区域或者触摸屏的挂机键区域。In the embodiment of the present invention, the parameter of the random pattern generated by the touch event is a position parameter, and the position parameter is obtained by calculating the coordinate of the central position of the coordinate values of the plurality of row electrodes and the column electrode, and the preset parameter is a preset position range. The step 103 further includes comparing the position parameter with the preset position range, and locking the touch screen when the position parameter of the random pattern is in the preset position range, wherein the preset position range includes an area of the touch screen near the earpiece of the handheld device or an on-hook of the touch screen Key area.
除此之外，还可以有其他的实施例，触摸事件产生的随机图形的参数为面积值，面积值由多个行电极和列电极交叉点的坐标值相互连接所围成图形的面积计算获得，预设参数为预设面积值，103步骤进一步包括将面积值与预设面积值进行比较，当随机图形的面积值大于等于预设面积值时，锁定触摸屏，其中，预设面积值为人耳轮廓所包围的面积、触摸屏宽度的一半为边长的正方形的面积或者触摸屏的挂机键区域的1.5倍的面积。In addition, there may be other embodiments. The parameter of the random pattern generated by the touch event is an area value, and the area value is calculated by the area of the graph surrounded by the coordinate values of the intersections of the plurality of row electrodes and the column electrodes. The preset parameter is a preset area value, and the step 103 further comprises comparing the area value with the preset area value. When the area value of the random pattern is greater than or equal to the preset area value, the touch screen is locked, wherein the preset area value is a human ear. The area enclosed by the outline, half of the width of the touch screen is the area of the square of the side length or 1.5 times the area of the on-hook key area of the touch screen.
触摸事件产生的随机图形的参数为轮廓特征，轮廓特征由多个行电极和列电极交叉点的坐标值相互连接所围成图形的轮廓提取形状特征获得，预设参数为预设轮廓特征，103步骤进一步包括将轮廓特征与预设轮廓特征进行比较，当随机图形的轮廓特征与预设轮廓特征相匹配时，锁定触摸屏，其中，预设轮廓特征为人耳轮廓特征或者脸耳连接部轮廓特征。The parameter of the random pattern generated by the touch event is a contour feature, and the contour feature is obtained by extracting the shape feature of the contour of the intersection of the plurality of row electrode and the column electrode intersection point, and the preset parameter is a preset contour feature, 103 The step further includes comparing the contour feature to the preset contour feature, and locking the touch screen when the contour feature of the random pattern matches the preset contour feature, wherein the preset contour feature is a human ear contour feature or a face ear connection contour feature.
触摸事件产生的随机图形的参数为位置参数和面积值，预设参数为预设位置范围和预设面积值，在随机图形的位置参数在预设位置范围内，并且随机图形的面积值大于等于预设面积值时，锁定触摸屏。The parameters of the random pattern generated by the touch event are the position parameter and the area value, the preset parameter is the preset position range and the preset area value, the position parameter of the random pattern is within the preset position range, and the area value of the random pattern is greater than or equal to When the area value is preset, the touch screen is locked.
触摸事件产生的随机图形的参数为位置参数和轮廓参数，预设参数为预设位置范围和预设图形轮廓，在随机图形的位置参数在预设位置范围内，并且随机图形的轮廓参数与预设图形轮廓相匹配时，锁定触摸屏。The parameters of the random graph generated by the touch event are the position parameter and the contour parameter, the preset parameter is the preset position range and the preset graphic contour, the position parameter of the random graphic is within the preset position range, and the contour parameter of the random graphic and the pre-predetermined Lock the touch screen when the graphic outlines match.
请再参阅图2，图2是根据本发明一较佳实施例的手持设备电路结构示意图。如图2所示，在本实施例中，手持设备20包括基带处理器22和触摸屏24，二者相互连接。Please refer to FIG. 2. FIG. 2 is a schematic structural diagram of a circuit of a handheld device according to a preferred embodiment of the present invention. As shown in FIG. 2, in the present embodiment, the handheld device 20 includes a baseband processor 22 and a touch screen 24, which are connected to each other.
触摸屏24包括驱动芯片240和触摸板242，触摸动作在触摸板242上产生，基带处理器22控制驱动芯片240检测手持设备通话状态，在手持设备开启通话时，将述触摸屏24的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，接近感应灵敏度大于直接接触灵敏度；触摸屏24检测电容变化值，将电容变化值与接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；基带处理器22将随机图形参数与预设参数进行比较，根据比较结果锁定触摸屏24。The touch screen 24 includes a driving chip 240 and a touch panel 242. The touch action is generated on the touch panel 242. The baseband processor 22 controls the driving chip 240 to detect the call state of the handheld device. When the handheld device turns on the call, the sensitivity of the touch screen 24 is directly contacted. The sensitivity is adjusted to the proximity sensing sensitivity, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; the touch screen 24 detects the capacitance change value, compares the capacitance change value with the proximity sensing sensitivity, and acquires a random graphic parameter corresponding to the touch region; the baseband processor 22 The random graphic parameters are compared with the preset parameters, and the touch screen 24 is locked according to the comparison result.
其中，驱动芯片240通过对触摸板242的行电极和列电极的扫描，得到多个行电极和列电极交叉点的电容变化值，将多个电容变化值与接近感应灵敏度比较，得到大于等于接近感应灵敏度的电容变化值所对应的多个行电极和列电极交叉点的坐标值，通过多个行电极和列电极交叉点的坐标值获取触摸区域所对应的随机图形参数。The driving chip 240 scans the row electrode and the column electrode of the touch panel 242 to obtain a capacitance change value of a plurality of row electrode and column electrode intersection points, and compares the plurality of capacitance change values with the proximity sensing sensitivity to obtain a value greater than or equal to The coordinate values of the intersections of the plurality of row electrodes and the column electrodes corresponding to the capacitance change values of the sensing sensitivity acquire the random pattern parameters corresponding to the touch regions by the coordinate values of the intersections of the plurality of row electrodes and the column electrodes.
值得注意的是，本发明揭示的技术方案尤其适用于电容式触摸屏。It should be noted that the technical solution disclosed by the present invention is particularly applicable to a capacitive touch screen.
因此，通过以上方案，本发明提供的手持设备及其通话过程中防止触摸屏误触发的方法通过将触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，触摸屏感应到感应区域的靠近，实现对触摸屏的锁定，避免通话过程中误触发挂机，降低了手持设备的设计难度和成本。Therefore, with the above solution, the handheld device provided by the present invention and the method for preventing false triggering of the touch screen during the call process can adjust the sensitivity of the touch screen from the direct contact sensitivity to the proximity sensing sensitivity, and the touch screen senses the proximity of the sensing region to realize the touch screen. Locked to avoid false triggering of the hook during the call, reducing the design difficulty and cost of the handheld device.
以上仅为本发明的实施例，并非因此限制本发明的专利面积，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护面积内。The above is only an embodiment of the present invention, and is not intended to limit the patented area of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and the drawings of the present invention may be directly or indirectly applied to other related technical fields. The same is included in the patented protected area of the present invention.
本发明的实施方式Embodiments of the invention
工业实用性Industrial applicability
序列表自由内容Sequence table free content

Claims (16)

  1. 一种手持设备通话过程中防止触摸屏误触发的方法，其中A method for preventing a false trigger of a touch screen during a call of a handheld device, wherein
    所述方法包括以下步骤：The method includes the following steps:
    a. 检测手持设备通话状态，在所述手持设备开启通话时，将所述触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，所述接近感应灵敏度大于所述直接接触灵敏度；a. Detecting a call state of the handheld device, and adjusting a sensitivity of the touch screen from a direct contact sensitivity to a proximity sensing sensitivity when the handheld device starts a call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity;
    b. 检测所述触摸屏的电容变化值，将所述电容变化值与所述接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；b. Detecting a capacitance change value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area;
    c. 将所述随机图形参数与预设参数进行比较，根据比较结果锁定所述触摸屏；c. comparing the random graphic parameter with a preset parameter, and locking the touch screen according to the comparison result;
    所述触摸屏为互电容式触摸屏，在所述b步骤中，通过对行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的所述电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较大小，从中选出大于等于所述接近感应灵敏度的所述电容变化值，进而获得与大于等于所述接近感应灵敏度的所述电容变化值相对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数；The touch screen is a mutual capacitive touch screen. In the step b, the capacitance change values of the intersections of the row electrodes and the column electrodes are obtained by scanning the row electrodes and the column electrodes, and the plurality of capacitance changes are obtained. And comparing the capacitance change value to the proximity sensing sensitivity, and selecting the capacitance change value that is greater than or equal to the proximity sensing sensitivity, thereby obtaining a capacitance change value corresponding to the proximity sensing sensitivity. a coordinate value of a plurality of intersections of the row electrode and the column electrode, and acquiring, by a plurality of coordinate values of the intersection of the row electrode and the column electrode, the random pattern parameter corresponding to the touch region;
    所述触摸事件产生的随机图形的参数为位置参数和面积值，所述预设参数为预设位置范围和预设面积值，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏；The parameter of the random pattern generated by the touch event is a position parameter and an area value, the preset parameter is a preset position range and a preset area value, and the position parameter of the random figure is within the preset position range, And when the area value of the random pattern is greater than or equal to the preset area value, locking the touch screen;
    所述触摸事件产生的随机图形的参数为位置参数和轮廓参数，所述预设参数为预设位置范围和预设图形轮廓，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的轮廓参数与所述预设图形轮廓相匹配时，锁定所述触摸屏。The parameters of the random pattern generated by the touch event are a position parameter and a contour parameter, the preset parameter is a preset position range and a preset graphic contour, and the position parameter of the random graphic is within the preset position range, And when the contour parameter of the random graphic matches the preset graphic contour, the touch screen is locked.
  2. 根据权利要求1所述的方法，其中The method of claim 1 wherein
    所述触摸屏为互电容式触摸屏，在所述b步骤中，通过对行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的所述电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较大小，从中选出大于等于所述接近感应灵敏度的所述电容变化值，进而获得与大于等于所述接近感应灵敏度的所述电容变化值相对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数。The touch screen is a mutual capacitive touch screen. In the step b, the capacitance change values of the intersections of the row electrodes and the column electrodes are obtained by scanning the row electrodes and the column electrodes, and the plurality of capacitance changes are obtained. And comparing the capacitance change value to the proximity sensing sensitivity, and selecting the capacitance change value that is greater than or equal to the proximity sensing sensitivity, thereby obtaining a capacitance change value corresponding to the proximity sensing sensitivity. a coordinate value of a plurality of intersections of the row electrode and the column electrode, and acquiring the random pattern parameter corresponding to the touch region by a coordinate value of a plurality of intersections of the row electrode and the column electrode.
  3. 根据权利要求2所述的方法，其中The method of claim 2 wherein
    所述触摸事件产生的随机图形的参数为位置参数，所述位置参数由多个所述行电极和所述列电极交叉点的坐标值计算中心位置坐标获得，所述预设参数为预设位置范围，所述c步骤进一步包括将所述位置参数与所述预设位置范围进行比较，当所述随机图形的位置参数在所述预设位置范围时，锁定所述触摸屏，其中，所述预设位置范围包括所述触摸屏靠近所述手持设备的听筒的区域或者所述触摸屏的挂机键区域。The parameter of the random pattern generated by the touch event is a position parameter, and the position parameter is obtained by calculating a central position coordinate by a coordinate value of a plurality of the row electrode and the column electrode intersection, and the preset parameter is a preset position. Range, the step c further includes comparing the position parameter with the preset position range, and when the position parameter of the random pattern is in the preset position range, locking the touch screen, wherein the pre- The location range includes an area of the touch screen that is adjacent to the handset of the handheld device or an on-hook key area of the touch screen.
  4. 根据权利要求2所述的方法，其中The method of claim 2 wherein
    所述触摸事件产生的随机图形的参数为面积值，所述面积值由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的面积计算获得，所述预设参数为预设面积值，所述c步骤进一步包括将所述面积值与所述预设面积值进行比较，当所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏，其中，所述预设面积值为人耳轮廓所包围的面积、所述触摸屏宽度的一半为边长的正方形的面积或者所述触摸屏的挂机键区域的1.5倍的面积。The parameter of the random pattern generated by the touch event is an area value, and the area value is obtained by calculating an area enclosed by a plurality of coordinate values of the row electrode and the column electrode intersection point, wherein the preset is obtained. The parameter is a preset area value, and the step c further includes comparing the area value with the preset area value, and when the area value of the random pattern is greater than or equal to the preset area value, locking the touch screen The preset area value is an area enclosed by the outline of the human ear, an area of a square of the side of the touch screen, or an area of 1.5 times the area of the on-hook key of the touch screen.
  5. 根据权利要求2所述的方法，其中The method of claim 2 wherein
    所述触摸事件产生的随机图形的参数为轮廓特征，所述轮廓特征由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的轮廓提取形状特征获得，所述预设参数为预设轮廓特征，所述c步骤进一步包括将所述轮廓特征与所述预设轮廓特征进行比较，当所述随机图形的轮廓特征与所述预设轮廓特征相匹配时，锁定所述触摸屏，其中，所述预设轮廓特征为人耳轮廓特征或者脸耳连接部轮廓特征。The parameter of the random pattern generated by the touch event is a contour feature, and the contour feature is obtained by a contour extraction feature shape in which a plurality of coordinate values of the row electrode and the column electrode intersection are connected to each other, and the contour is extracted. The preset parameter is a preset contour feature, and the step c further comprises comparing the contour feature with the preset contour feature, and locking when the contour feature of the random graphic matches the preset contour feature The touch screen, wherein the preset contour feature is a human ear contour feature or a face ear joint contour feature.
  6. 一种手持设备通话过程中防止触摸屏误触发的方法，其中A method for preventing a false trigger of a touch screen during a call of a handheld device, wherein
    所述方法包括以下步骤：The method includes the following steps:
    a. 检测手持设备通话状态，在所述手持设备开启通话时，将所述触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，所述接近感应灵敏度大于所述直接接触灵敏度；a. Detecting a call state of the handheld device, and adjusting a sensitivity of the touch screen from a direct contact sensitivity to a proximity sensing sensitivity when the handheld device starts a call, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity;
    b. 检测所述触摸屏的电容变化值，将所述电容变化值与所述接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；b. Detecting a capacitance change value of the touch screen, comparing the capacitance change value with the proximity sensing sensitivity, and acquiring a random graphic parameter corresponding to the touch area;
    c. 将所述随机图形参数与预设参数进行比较，根据比较结果锁定所述触摸屏。c. comparing the random graphic parameter with a preset parameter, and locking the touch screen according to the comparison result.
  7. 根据权利要求6所述的方法，其中The method of claim 6 wherein
    所述触摸屏为互电容式触摸屏，在所述b步骤中，通过对行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的所述电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较大小，从中选出大于等于所述接近感应灵敏度的所述电容变化值，进而获得与大于等于所述接近感应灵敏度的所述电容变化值相对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数。The touch screen is a mutual capacitive touch screen. In the step b, the capacitance change values of the intersections of the row electrodes and the column electrodes are obtained by scanning the row electrodes and the column electrodes, and the plurality of capacitance changes are obtained. And comparing the capacitance change value to the proximity sensing sensitivity, and selecting the capacitance change value that is greater than or equal to the proximity sensing sensitivity, thereby obtaining a capacitance change value corresponding to the proximity sensing sensitivity. a coordinate value of a plurality of intersections of the row electrode and the column electrode, and acquiring the random pattern parameter corresponding to the touch region by a coordinate value of a plurality of intersections of the row electrode and the column electrode.
  8. 根据权利要求7所述的方法，其中The method of claim 7 wherein
    所述触摸事件产生的随机图形的参数为位置参数，所述位置参数由多个所述行电极和所述列电极交叉点的坐标值计算中心位置坐标获得，所述预设参数为预设位置范围，所述c步骤进一步包括将所述位置参数与所述预设位置范围进行比较，当所述随机图形的位置参数在所述预设位置范围时，锁定所述触摸屏，其中，所述预设位置范围包括所述触摸屏靠近所述手持设备的听筒的区域或者所述触摸屏的挂机键区域。The parameter of the random pattern generated by the touch event is a position parameter, and the position parameter is obtained by calculating a central position coordinate by a coordinate value of a plurality of the row electrode and the column electrode intersection, and the preset parameter is a preset position. Range, the step c further includes comparing the position parameter with the preset position range, and when the position parameter of the random pattern is in the preset position range, locking the touch screen, wherein the pre- The location range includes an area of the touch screen that is adjacent to the handset of the handheld device or an on-hook key area of the touch screen.
  9. 根据权利要求7所述的方法，其中The method of claim 7 wherein
    所述触摸事件产生的随机图形的参数为面积值，所述面积值由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的面积计算获得，所述预设参数为预设面积值，所述c步骤进一步包括将所述面积值与所述预设面积值进行比较，当所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏，其中，所述预设面积值为人耳轮廓所包围的面积、所述触摸屏宽度的一半为边长的正方形的面积或者所述触摸屏的挂机键区域的1.5倍的面积。The parameter of the random pattern generated by the touch event is an area value, and the area value is obtained by calculating an area enclosed by a plurality of coordinate values of the row electrode and the column electrode intersection point, wherein the preset is obtained. The parameter is a preset area value, and the step c further includes comparing the area value with the preset area value, and when the area value of the random pattern is greater than or equal to the preset area value, locking the touch screen The preset area value is an area enclosed by the outline of the human ear, an area of a square of the side of the touch screen, or an area of 1.5 times the area of the on-hook key of the touch screen.
  10. 根据权利要求7所述的方法，其中The method of claim 7 wherein
    所述触摸事件产生的随机图形的参数为轮廓特征，所述轮廓特征由多个所述行电极和所述列电极交叉点的坐标值相互连接所围成图形的轮廓提取形状特征获得，所述预设参数为预设轮廓特征，所述c步骤进一步包括将所述轮廓特征与所述预设轮廓特征进行比较，当所述随机图形的轮廓特征与所述预设轮廓特征相匹配时，锁定所述触摸屏，其中，所述预设轮廓特征为人耳轮廓特征或者脸耳连接部轮廓特征。The parameter of the random pattern generated by the touch event is a contour feature, and the contour feature is obtained by a contour extraction feature shape in which a plurality of coordinate values of the row electrode and the column electrode intersection are connected to each other, and the contour is extracted. The preset parameter is a preset contour feature, and the step c further comprises comparing the contour feature with the preset contour feature, and locking when the contour feature of the random graphic matches the preset contour feature The touch screen, wherein the preset contour feature is a human ear contour feature or a face ear joint contour feature.
  11. 根据权利要求6所述的方法，其中The method of claim 6 wherein
    所述触摸事件产生的随机图形的参数为位置参数和面积值，所述预设参数为预设位置范围和预设面积值，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的面积值大于等于所述预设面积值时，锁定所述触摸屏。The parameter of the random pattern generated by the touch event is a position parameter and an area value, the preset parameter is a preset position range and a preset area value, and the position parameter of the random figure is within the preset position range, And when the area value of the random pattern is greater than or equal to the preset area value, the touch screen is locked.
  12. 根据权利要求6所述的方法，其中The method of claim 6 wherein
    所述触摸事件产生的随机图形的参数为位置参数和轮廓参数，所述预设参数为预设位置范围和预设图形轮廓，在所述随机图形的位置参数在所述预设位置范围内，并且所述随机图形的轮廓参数与所述预设图形轮廓相匹配时，锁定所述触摸屏。The parameters of the random pattern generated by the touch event are a position parameter and a contour parameter, the preset parameter is a preset position range and a preset graphic contour, and the position parameter of the random graphic is within the preset position range, And when the contour parameter of the random graphic matches the preset graphic contour, the touch screen is locked.
  13. 根据权利要求6所述的方法，其中 The method of claim 6 wherein
    锁定所述触摸屏后，继续执行所述b步骤，当所述随机图形参数存在时，继续执行所述c步骤，当所述随机图形参数为空时，解锁所述触摸屏并执行所述a步骤。After the touch screen is locked, the step b is continued, and when the random graphic parameter exists, the step c is continued, and when the random graphic parameter is empty, the touch screen is unlocked and the a step is performed.
  14. 根据权利要求6所述的方法，其中The method of claim 6 wherein
    所述方法进一步包括以下步骤：The method further includes the following steps:
    在所述手持设备通话结束时，解锁所述触摸屏，将所述触摸屏的灵敏度从接近感应灵敏度调整到直接接触灵敏度。At the end of the call of the handheld device, the touch screen is unlocked, and the sensitivity of the touch screen is adjusted from proximity sensing sensitivity to direct contact sensitivity.
  15. 一种手持设备，其包括：基带处理器和触摸屏，所述触摸屏包括驱动芯片，所述基带处理器控制所述驱动芯片检测手持设备通话状态，在所述手持设备开启通话时，将所述触摸屏的灵敏度从直接接触灵敏度调整到接近感应灵敏度，其中，所述接近感应灵敏度大于所述直接接触灵敏度；所述触摸屏检测电容变化值，将所述电容变化值与所述接近感应灵敏度相比较，获取触摸区域所对应的随机图形参数；所述基带处理器将所述随机图形参数与预设参数进行比较，根据比较结果锁定所述触摸屏。A handheld device comprising: a baseband processor and a touch screen, the touch screen comprising a driving chip, the baseband processor controlling the driving chip to detect a call state of the handheld device, and when the handheld device starts a call, the touch screen is Sensitivity is adjusted from direct contact sensitivity to proximity sensing sensitivity, wherein the proximity sensing sensitivity is greater than the direct contact sensitivity; the touch screen detects a capacitance change value, and compares the capacitance change value with the proximity sensing sensitivity to obtain Touching a random graphic parameter corresponding to the area; the baseband processor compares the random graphic parameter with a preset parameter, and locks the touch screen according to the comparison result.
  16. 根据权利要求15所述的手持设备，其中A handheld device according to claim 15 wherein
    所述触摸屏还包括触摸板，所述驱动芯片通过对所述触摸板的行电极和列电极的扫描，得到多个所述行电极和所述列电极交叉点的电容变化值，将多个所述电容变化值与所述接近感应灵敏度比较，得到大于等于所述接近感应灵敏度的所述电容变化值所对应的多个所述行电极和所述列电极交叉点的坐标值，通过多个所述行电极和所述列电极交叉点的坐标值获取所述触摸区域所对应的所述随机图形参数。The touch screen further includes a touch panel, and the driving chip obtains a capacitance change value of a plurality of intersections of the row electrode and the column electrode by scanning a row electrode and a column electrode of the touch panel, and the plurality of Comparing the capacitance change value with the proximity sensing sensitivity, obtaining coordinate values of a plurality of the row electrode and the column electrode intersection corresponding to the capacitance change value of the proximity sensing sensitivity, and passing through a plurality of The coordinate values of the intersection of the row electrode and the column electrode acquire the random pattern parameter corresponding to the touch area.
PCT/CN2012/080982 2011-10-11 2012-09-05 Handheld device and method thereof for preventing false triggering of touch screen during call WO2013053272A1 (en)

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