WO2012068912A1 - 电容式触摸屏信号处理方法及装置 - Google Patents

电容式触摸屏信号处理方法及装置 Download PDF

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Publication number
WO2012068912A1
WO2012068912A1 PCT/CN2011/078798 CN2011078798W WO2012068912A1 WO 2012068912 A1 WO2012068912 A1 WO 2012068912A1 CN 2011078798 W CN2011078798 W CN 2011078798W WO 2012068912 A1 WO2012068912 A1 WO 2012068912A1
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WO
WIPO (PCT)
Prior art keywords
contact area
touch screen
command
area
user
Prior art date
Application number
PCT/CN2011/078798
Other languages
English (en)
French (fr)
Inventor
侯毅峰
赵小妮
张晓亮
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012068912A1 publication Critical patent/WO2012068912A1/zh

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Definitions

  • the present invention relates to the field of communications, and in particular to a capacitive touch screen signal processing method and apparatus.
  • Capacitive touch screens are gaining more and more applications with high light transmittance.
  • the principle of the inductive capacitive touch screen is to charge and discharge the capacitance between the finger and the touch screen, and then perform digital/analog conversion on the charging and discharging time to obtain an inductive signal, and then weight the sensing signal to obtain the exact position of the touched point.
  • the control chip of the inductive capacitive touch screen transmits the touch position information to the device control chip, and is displayed through the display screen.
  • the use of the touch screen is mainly processed according to the position information of the touched point.
  • a primary object of the present invention is to provide a capacitive touch screen signal processing method and apparatus to solve at least one of the above problems.
  • a capacitive touch screen signal processing method including: obtaining a contact area according to an inductive signal of a touch screen; acquiring a command corresponding to the contact area, wherein the command is set to implement an application reservation Function; transmitting the trigger command to the application.
  • obtaining a contact area according to the sensing signal of the touch screen, and obtaining a command corresponding to the contact area comprises: obtaining a change value of the contact area according to the sensing signal of the touch screen in a state that the touch screen remains touched, Obtaining a command corresponding to the change value of the contact area.
  • the method before the obtaining the contact area according to the sensing signal of the touch screen, the method further includes: receiving a contact area from the user, and predefining a correspondence between the contact area of the user and the command.
  • predefining the correspondence between the contact area of the user and the command comprises: saving a maximum contact area and a minimum contact area from the user; dividing the minimum contact area to the maximum contact area according to an arithmetic progression column Different area ranges, each area range corresponds to a command.
  • obtaining the contact area according to the sensing signal of the touch screen comprises: detecting and preserving a signal generated when a single diamond pattern on each channel of the touch screen is completely touched; detecting when each channel is touched The generated signal determines the contact area based on the ratio of the signal generated when touched and the signal generated when fully touched.
  • the command is at least one of the following: a command set to adjust the volume level, a command set to change the thickness of the line when drawing, and a command set to adjust the speed in the game.
  • a capacitive touch screen signal processing apparatus including: a first acquisition module configured to obtain a contact area according to an inductive signal of the touch screen; and a second acquisition module configured to acquire the contact The command corresponding to the area, wherein the command is set to implement a predetermined function of the application; and the sending module is configured to send the trigger command to the application.
  • the first acquiring module is configured to obtain a change value of the contact area according to the sensing signal of the touch screen in a state that the touch screen remains touched; the second acquiring module is configured to acquire and The command corresponding to the change in the contact area.
  • the device further includes: the receiving module is configured to receive a contact area from the user; and the preset module is configured to pre-define a correspondence between the contact area of the user and the command.
  • the preset module is configured to save a maximum contact area and a minimum contact area from the user, and divide the different contact areas into different area ranges from the minimum contact area to the maximum contact area, each The area range corresponds to a command.
  • the contact area is obtained according to the sensing signal of the touch screen; the command corresponding to the contact area is obtained, wherein the command is set to implement a predetermined function of the application; and the trigger command is sent to the application.
  • FIG. 1 is a flow chart of a method for processing a capacitive touch screen signal according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a structure of a signal processing device for a capacitive touch screen according to an embodiment of the present invention
  • 3 is a block diagram showing a structure of a preferred capacitive touch screen signal processing apparatus according to an embodiment of the present invention
  • FIG. 1 is a flow chart of a method for processing a capacitive touch screen signal according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a structure of a signal processing device for a capacitive touch screen according to an embodiment of the present invention
  • 3 is a block diagram showing a structure of a preferred capacitive touch screen signal processing apparatus according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a region covered by a finger according to an embodiment of the present invention
  • FIG. 5 is an X corresponding to FIG. 4 according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of data transmission between a capacitive touch screen and a terminal and an audio device according to an embodiment of the invention;
  • FIG. 7 is a flow chart of triggering various functions of an electronic device by touch area change according to an embodiment of the invention;
  • the capacitive touch screen signal processing method shown in FIG. 1 includes:
  • S104 Obtain a command corresponding to the contact area, where the command is used (or is set to) to implement a predetermined function of the application, for example, the command may be at least one of the following: a command for adjusting a volume, for a command to change the thickness of the line when drawing, and a command to adjust the speed in the game;
  • the change of the contact area (or the touch area) on the capacitive touch screen causes the sensing signal to change, and the various functions of the device are triggered by processing the sensing signal.
  • various functions of the electronic device can be triggered by changing the touch area of the finger on the capacitive touch screen, thereby solving the technical defect that the touch screen operation in the related art is not intuitive and not humanized.
  • a change value of the contact area is obtained according to the sensing signal of the touch screen, and a command corresponding to the change value of the contact area is obtained. Commands derived from such changes have a better user experience for some applications.
  • the contact area from the user is received, and the correspondence relationship between the contact area of the user and the command is defined in advance.
  • the maximum contact area and the minimum contact area from the user can be saved; the minimum contact area to the maximum contact area are divided into different area ranges according to the arithmetic progression, and each area range corresponds to a command.
  • FIG. 4 is a schematic diagram of an area covered by a finger according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a signal corresponding to the X channel of FIG. 4 according to an embodiment of the present invention.
  • detecting and saving signals generated when a single diamond pattern on each channel of the touch screen is completely touched detecting signals generated when touched on each channel, according to when being touched
  • the ratio of the signal to the signal produced when it is fully touched determines the contact area.
  • FIG. 2 is a structural block diagram of a capacitive touch screen signal processing apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: a first obtaining module 202, a second obtaining module 204, and a sending module 206.
  • the first obtaining module 202 is configured to: or be configured to obtain a contact area according to the sensing signal of the touch screen; the second obtaining module 204 is connected to the first obtaining module 202, and is configured to acquire a command corresponding to the contact area, where the command is used
  • the command may be at least one of the following: a command for adjusting the volume level, a command for changing the thickness of the line when drawing, a command for adjusting the speed in the game; 206 is coupled to the second acquisition module 204 for transmitting a trigger command to the application.
  • FIG. 3 is a structural block diagram of a preferred capacitive touch screen signal processing apparatus according to an embodiment of the present invention.
  • the apparatus shown in FIG. 3 includes: a receiving module 302 for receiving a contact area from a user; and a preset module 304, Used to pre-define the correspondence between the contact area of the user and the command. Since the size of the fingers of each user is different, a preset function can be added, by which different areas can be defined for different users.
  • the function can be implemented by the preset module 304.
  • the preset can be utilized.
  • Module 304 saves from the user
  • the maximum contact area and the minimum contact area; the minimum contact area to the maximum contact area are divided into different area ranges according to the arithmetic progression, and each area range corresponds to one command.
  • the preferred method is as follows.
  • the area obtained by the method is relatively accurate.
  • the first obtaining module 202 can obtain the contact area by the following means, see FIG. 4 and FIG.
  • the capacitive touch screen device of the embodiment of the present invention various functions of the electronic device can be triggered by changing the touch area of the finger on the capacitive touch screen, for example: adjusting the volume of the volume, changing the thickness of the scribe line in the drawing, and adjusting the speed in the game (for example, How fast the game character moves) and so on. It combines the user's touch, vision and hearing organically, bringing users a new, more intuitive and more humane service.
  • Step 1 The capacitive touch screen control chip processes the sensing signal to obtain a touch area.
  • the contact area can be calculated according to the following manner: First, the touch screen control The chip can first detect the signal when a single diamond pattern on each channel is fully touched and save it. Then detect the signal on each channel when the finger is touched. The area of the touch is obtained by comparing the signal with the signal at the time of full touch and weighting the ratio.
  • Step 2 The touch area information is transmitted to the electronic device through the data transmission protocol of the I2C/SPI; in this step, the data transmission protocol of the I2C/SPI is only a preferred mode, and the transmission of the touch area information can also be applied through other electronic devices. Data transfer protocol.
  • Step 3 The electronic device (for example, a mobile phone, an MP4 terminal, etc.) processes the touch area information through its control chip or software to generate a trigger command; in this step, the following method of processing the touch area information may be adopted: the electronic device controls through the same The chip or software processes the touch area information and generates a trigger command to implement the corresponding function. For example, when listening to music, the volume can be changed according to the change in the touch area.
  • Tones The amount is divided into several equal steps, and the threshold area corresponding to each volume is set.
  • the touch area When the touch area is changed, when the touch area reaches a threshold area corresponding to a certain volume, the volume changes to become the volume of the order.
  • the threshold area when the threshold area is set, the touched maximum area Sg and the minimum area Sm of the electronic device user are recorded by software.
  • Step 4 Implementation of various functions of the electronic device (for example, an audio device). Through step 4, the electronic device acquires instruction information obtained according to detecting a change in the contact area of the capacitive touch screen, and performs corresponding operations to implement corresponding functions.
  • the preferred embodiment can trigger various functions of the electronic device by changing the touch area of the finger on the capacitive touch screen, for example: adjusting the volume of the volume, changing the thickness of the line in the drawing, adjusting the speed of the game character in the game, and the like. It combines the user's touch, vision and hearing organically, bringing users a new, more intuitive and more humane service.
  • Example 1 When playing a piano game, the volume control is realized by the change of the touch area, refer to FIG. 7. 7 is a flow chart for triggering various functions of an electronic device by touch area change according to an embodiment of the present invention, as shown in FIG. 7: First, processing of an induced signal.
  • the sensing signal becomes stronger as the touch area of the finger increases.
  • the processing of the sensing signal is performed in the touch screen control chip.
  • the touch screen control chip can first detect the signal when a single diamond pattern on each channel is completely touched and save it. Then detect the signal on each channel when the finger is touched. The area of the touch is obtained by comparing the signal with the signal at the time of full touch and weighting the ratio. Taking FIG. 4 as an example, when the finger touches the touch screen, the touch screen control chip detects that the signals when the channels XI, X2, and X3 are touched at this time are respectively S1, S2, and S3.
  • the signals when the single diamond pattern on the channels XI, X2, and X3 are completely touched are St1, St2, and St3, and each diamond pattern has an area of m.
  • the transmission data interface of the capacitive touch screen is generally I2C/SPI, and the coordinates of the touch point and the corresponding touch area information are transmitted to the electronic device through the data transmission protocol. Then the electronic device control chip handles the area information, and the processing rules are as follows: The volume can be divided into seven equal steps and the threshold area for each volume is set. Comparing the touch area of the finger with the threshold area, when the touch area reaches a threshold area corresponding to a certain volume, the electronic device control chip generates trigger information for changing the volume.
  • the preferred embodiment proposes a method of defining the threshold area when setting the threshold area: recording the electron by software
  • Sg-S is defined as a threshold area S7 corresponding to the maximum volume
  • Sm+S is a threshold area S1 corresponding to the minimum volume, where S is a set variable area.
  • the threshold area corresponding to the 7th-order volume is obtained by the arithmetic progression.
  • the trigger information is a sinusoidal wave, the larger amplitude of the wave triggers a larger volume, and the smaller amplitude of the wave triggers a smaller volume.
  • the sinusoidal electric wave corresponding to the maximum volume is W7
  • the sinusoidal electric wave corresponding to the minimum volume is Wl
  • the sinusoidal electric wave corresponding to the 7th-order volume is obtained according to the amplitude difference series. Therefore, when the touch area reaches the threshold area SL corresponding to a certain volume L, the electronic device control chip triggers a sinusoidal electric wave corresponding to the amplitude. This sinusoidal wave changes the volume of the audio device to L.
  • Example 2 When drawing a picture, the thickness of the line is controlled by the change of the touch area, refer to FIG. 7.
  • the touch area is obtained by processing the sensing signal, and the processing procedure is the same as in the first example.
  • the touch area information is processed by the drawing software, and the processing rules are as follows:
  • the line width can be divided into five equal steps, and the threshold area corresponding to each line width is set. Comparing the touch area of the finger with the threshold area, when the touch area reaches a threshold area corresponding to a certain line width, the line width is changed accordingly.
  • Method for defining the threshold area The touch maximum area Sg and the minimum area Sm of the electronic device user are recorded by software. It is defined that Sg-S is a threshold area S5 corresponding to the maximum line width, and Sm+S is a threshold area S1 corresponding to the minimum line width, where S is a set variable area. The threshold area corresponding to the 5th-order line width is obtained by the arithmetic progression.
  • Example 3 In some games, in order to meet the user's usage habits, it is necessary to adjust the speed of the game character.
  • the speed of the game character is controlled by the change of the touch area, refer to FIG. 7.
  • the touch area is obtained by processing the sensing signal, and the processing procedure is the same as in the first example.
  • the game area software is used to process the touch area information.
  • the processing rules are as follows: The game character speed can be divided into five equal steps, and the threshold area corresponding to each speed is set. Comparing the finger touch area with the threshold area, when the touch area reaches a threshold area corresponding to a certain speed, the speed is changed accordingly.
  • Method for defining the threshold area The touch maximum area Sg and the minimum area Sm of the electronic device user are recorded by software.
  • Sg-S is the threshold area S5 corresponding to the maximum speed
  • Sm+S is the threshold area S1 corresponding to the minimum speed, where S is a set variable area.
  • the threshold area corresponding to the 5th-order velocity is obtained by the arithmetic progression.
  • the above embodiment can trigger various functions of the electronic device by changing the touch area change on the capacitive touch screen, for example: adjusting the volume, changing the thickness of the line in the drawing, and adjusting the game speed in the game (for example, the game) The speed of the character) and so on. It combines the user's touch, vision and hearing organically, bringing users a new, more intuitive and more humane service, which improves the user experience.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Description

电容式触摸屏信号处理方法及装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种电容式触摸屏信号处理方法及装置。 背景技术 电容式触摸屏以高的透光率, 得到越来越多的应用。 感应电容式触摸屏的原理是以对手指和触摸屏之间的电容进行充放电, 然后对充 放电时间进行数 /模转换, 得到感应信号, 然后通过对感应信号加权得出触摸点的准确 位置。 此时感应电容式触摸屏的控制芯片将触摸位置信息传给设备控制芯片, 通过显 示屏显示出来。 目前, 对触摸屏的使用主要是通过根据触摸点的位置信息来进行处理, 这样的处 理方式使触摸屏的操作用户体验不高, 例如, 不够直观、 不够人性化。 发明内容 本发明的主要目的在于提供一种电容式触摸屏信号处理方法及装置, 以至少解决 上述问题之一。 根据本发明的一个方面, 提供了一种电容式触摸屏信号处理方法, 包括: 根据触 摸屏的感应信号得到接触面积; 获取与所述接触面积对应的命令, 其中, 所述命令设 置为实现应用的预定功能; 将所述触发命令发送给所述应用。 优选地, 根据触摸屏的感应信号得到接触面积, 获取与所述接触面积对应的命令 包括: 在所述触摸屏保持被触摸的状态下, 根据所述触摸屏的感应信号得到所述接触 面积的变化值, 获取与所述接触面积的变化值对应的命令。 优选地,在根据所述触摸屏的感应信号得到所述接触面积之前, 上述方法还包括: 接收来自用户的接触面积, 预先定义所述用户的接触面积与命令的对应关系。 优选地, 预先定义所述用户的接触面积与命令的对应关系包括: 保存来自所述用 户的最大接触面积和最小接触面积; 从所述最小接触面积到所述最大接触面积按照等 差数列划分成不同的面积范围, 每一个面积范围对应一种命令。 优选地, 根据所述触摸屏的感应信号得到所述接触面积包括: 预先检测并保存所 述触摸屏每条通道上的单个菱形图案被完全触摸时所产生的信号; 检测各条通道上被 触摸时所产生的信号, 根据被触摸时所产生的信号与被完全触摸时所产生的信号的比 例确定所述接触面积。 优选地, 所述命令为以下至少之一: 设置为调节音量大小的命令、 设置为在画图 时改变划线粗细的命令、 在游戏中设置为调节速度的命令。 根据本发明的另一个方面, 还提供了一种电容式触摸屏信号处理装置, 包括: 第 一获取模块, 设置为根据触摸屏的感应信号得到接触面积; 第二获取模块, 设置为获 取与所述接触面积对应的命令, 其中, 所述命令设置为实现应用的预定功能; 发送模 块, 设置为将所述触发命令发送给所述应用。 优选地, 所述第一获取模块设置为在所述触摸屏保持被触摸的状态下, 根据所述 触摸屏的感应信号得到所述接触面积的变化值; 所述第二获取模块设置为获取与所述 接触面积的变化值对应的命令。 优选地, 所述装置还包括: 接收模块设置为接收来自用户的接触面积; 预置模块 设置为预先定义所述用户的接触面积与命令的对应关系。 优选地,所述预置模块设置为保存来自所述用户的最大接触面积和最小接触面积, 并从所述最小接触面积到所述最大接触面积按照等差数列划分成不同的面积范围, 每 一个面积范围对应一种命令。 通过本发明, 采用根据触摸屏的感应信号得到接触面积; 获取与接触面积对应的 命令, 其中, 命令设置为实现应用的预定功能; 将触发命令发送给应用。 解决了相关 技术中触摸屏的操作用户体验不高的问题, 进而提高了用户体验。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据本发明实施例的电容式触摸屏信号处理方法的流程图; 图 2是根据本发明实施例的电容式触摸屏信号处理装置的结构框图; 图 3是根据本发明实施例优选的电容式触摸屏信号处理装置的结构框图; 图 4是根据本发明实施例的手指覆盖的区域示意图; 图 5是根据本发明实施例的对应于图 4的 X通道的信号示意图; 图 6是根据本发明实施例的电容式触摸屏与终端及音频设备之间的数据传输示意 图; 图 7是根据本发明实施例的由触摸面积改变触发电子设备各种功能的流程图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 在以下实施例中, 在使用电容式触摸屏过程中, 当手指与触摸屏垂直接触时, 手 指与触摸屏接触的面积较小; 手指与触摸屏倾斜接触时, 手指与触摸屏接触的面积较 大。 因此以下实施例通过改变手指与触摸屏的倾斜角度来改变接触面积的大小。 手指 与触摸屏之间的电容 C= S/d,电容式触摸屏随着手指触摸面积的增大,感应信号就会变 强; 手指触摸面积减小, 感应信号就会变弱。 图 1是根据本发明实施例的电容式触摸屏信号处理方法的流程图。 如图 1所示的 电容式触摸屏信号处理方法, 包括:
S102, 根据触摸屏的感应信号得到接触面积;
S104, 获取与该接触面积对应的命令, 其中, 该命令用于 (或设置为) 实现应用 的预定功能, 例如, 该命令可以为以下至少之一: 用于调节音量大小的命令、 用于在 画图时改变划线粗细的命令、 在游戏中用于调节速度的命令;
S106, 将触发命令发送给应用。 通过本实施例, 电容式触摸屏上接触面积 (或称为触摸面积) 的改变会导致感应 信号发生变化, 通过对感应信号的处理, 从而触发设备的各种功能。 并且, 通过上述 步骤可以通过改变电容式触摸屏上手指触摸面积即可触发电子设备各种功能, 解决了 相关技术中的触摸屏操作不够直观、 不够人性化的技术缺陷。 优选地, 在实施时, 可以在触摸屏保持被触摸的状态下, 根据触摸屏的感应信号 得到接触面积的变化值, 获取与接触面积的变化值对应的命令。 通过这样的变化值得 到的命令对某些应用而言, 其用户体验度更佳。 优选地, 由于各个用户的手指的大小不同, 因此可以添加预先设置的步骤, 通过 该步骤可以对不同的用户定义不同的面积。 例如, 接收来自用户的接触面积, 预先定 义用户的接触面积与命令的对应关系。 例如, 可以保存来自用户的最大接触面积和最 小接触面积; 从最小接触面积到最大接触面积按照等差数列划分成不同的面积范围, 每一个面积范围对应一种命令。 当然, 根据触摸屏的感应信号得到接触面积方式有很多种, 下面列举一个比较优 的方式, 该方式得出的面积比较准确。 图 4是根据本发明实施例的手指覆盖的区域示 意图, 图 5是根据本发明实施例的对应于图 4的 X通道的信号示意图。 如图 4和图 5 所示:预先检测并保存触摸屏每条通道上的单个菱形图案被完全触摸时所产生的信号; 检测各条通道上被触摸时所产生的信号, 根据被触摸时所产生的信号与被完全触摸时 所产生的信号的比例确定接触面积。 图 2是根据本发明实施例的电容式触摸屏信号处理装置的结构框图,如图 2所示, 该装置包括: 第一获取模块 202、 第二获取模块 204、 发送模块 206, 下面对该结构进 行说明。 第一获取模块 202, 用于 (或设置为) 根据触摸屏的感应信号得到接触面积; 第 二获取模块 204与第一获取模块 202相连接,用于获取与接触面积对应的命令,其中, 命令用于实现应用的预定功能, 例如, 该命令可以为以下至少之一: 用于调节音量大 小的命令、 用于在画图时改变划线粗细的命令、 在游戏中用于调节速度的命令; 发送 模块 206与第二获取模块 204相连接, 用于将触发命令发送给应用。 优选地, 第一获取模块 202和第二获取模块 204还用于: 在触摸屏保持被触摸的 状态下, 根据触摸屏的感应信号得到接触面积的变化值, 获取与接触面积的变化值对 应的命令。 优选地,图 3是根据本发明实施例优选的电容式触摸屏信号处理装置的结构框图, 如图 3所示的装置包括:接收模块 302,用于接收来自用户的接触面积;预置模块 304, 用于预先定义用户的接触面积与命令的对应关系。 由于各个用户的手指的大小不同, 因此可以添加预先设置的功能,通过该功能可以对不同的用户定义不同的面积,例如, 该功能可由上述预置模块 304实现, 具体的, 可利用该预置模块 304保存来自用户的 最大接触面积和最小接触面积; 从最小接触面积到最大接触面积按照等差数列划分成 不同的面积范围, 每一个面积范围对应一种命令。 根据触摸屏的感应信号得到接触面积方式有很多种,下面列举一个比较优的方式, 该方式得出的面积比较准确,例如: 第一获取模块 202可通过以下方式获得接触面积, 参见图 4和图 5; 预先检测并保存触摸屏每条通道上的单个菱形图案被完全触摸时所 产生的信号; 检测各条通道上被触摸时所产生的信号, 根据被触摸时所产生的信号与 被完全触摸时所产生的信号的比例确定接触面积。 通过本发明实施例的电容式触摸屏装置, 通过改变电容触摸屏上手指触摸面积能 够触发电子设备各种功能, 例如: 调节音量的大小, 画图中改变划线的粗细, 在游戏 中调节速度 (例如, 游戏角色移动的快慢) 等等。 它将用户的触觉、 视觉、 听觉有机 地结合起来, 带给用户一种全新的、 更直观、 更人性化的服务。 下面结合优选实施例进行说明。 图 6是根据本发明实施例的电容式触摸屏 (或称 为触摸板) 与终端及音频设备之间的数据传输示意图。 如图 6所示, 该优选实施例包 括如下步骤: 步骤一: 电容式触摸屏控制芯片对感应信号的处理, 得出触摸面积; 在该步骤中, 可以根据以下方式来计算接触面积: 首先触摸屏控制芯片可以先检 测每条通道上单个菱形图案被完全触摸到时的信号, 并将其保存。 然后检测手指触摸 时各条通道上的信号。 将信号与全触摸时的信号相比, 并将此比例加权就可以得到触 摸的面积。 步骤二: 将触摸面积信息通过 I2C/SPI的数据传输协议传输给电子设备; 此步骤中 I2C/SPI 的数据传输协议只是一种优选的方式, 触摸面积信息的传输也 可通过其他电子设备间应用的数据传输协议。 步骤三: 电子设备 (例如, 手机、 MP4等终端) 通过其控制芯片或是软件处理触 摸面积信息, 产生触发命令; 在该步骤中, 可以采用如下处理触摸面积信息的方式: 电子设备通过其控制芯片或软件处理触摸面积信息, 产生触发命令, 从而实现相 应的功能。 例如, 在听音乐时, 就可以根据触摸面积的变化实现音量的改变。 可将音 量分为若干等阶, 并设置每个音量对应的阈值面积。 在触摸面积改变时, 当触摸面积 达到某一音量对应的阈值面积时, 音量就发生改变, 变成此阶音量。 考虑到每个人的手指触摸面积不尽相同,甚至是成人和儿童的手指面积差别较大, 所以在设置阈值面积时,通过软件记录该电子设备用户的触摸最大面积 Sg和最小面积 Sm。 定义 Sg-S为最大音量对应的阈值面积 S7, Sm+S为最小音量对应的阈值面积 S1, 其中 S为根据实际情况设置的一个较小的变动面积, N阶音量对应的阈值面积按照等 差数列得出。 步骤四: 电子设备 (例如, 音频设备) 各种功能的实现。 通过步骤四,电子设备获取根据检测电容式触摸屏接触面积变化得到的指令信息, 执行相应操作, 实现对应的各种功能。 本优选实施例通过改变电容触摸屏上手指触摸面积能够触发电子设备各种功能, 例如: 调节音量的大小, 画图中改变划线的粗细, 在游戏中调节游戏角色的快慢等等。 它将用户的触觉、 视觉、 听觉有机地结合起来, 带给用户一种全新的、 更直观、 更人 性化的服务。 以下根据以不同的应用为例并参照附图进行说明。 实例一: 在玩弹钢琴游戏时, 通过触摸面积的改变实现对音量的控制, 参考图 7。 图 7是根据本发明实施例的由触摸面积改变触发电子设备各种功能的流程图, 如图 7 所示: 首先是对感应信号的处理。 感应电容触摸屏随着手指触摸面积的增大, 感应信号 就会变强。 其中对感应信号的处理过程在触摸屏控制芯片中完成。 触摸屏控制芯片可 以先检测每条通道上单个菱形图案被完全触摸到时的信号, 并将其保存。 然后检测手 指触摸时各条通道上的信号。 将信号与全触摸时的信号相比, 并将此比例加权就可以 得到触摸的面积。 以图 4为例, 在手指接触到触摸屏时, 触摸屏控制芯片检测到此时 通道 XI、 X2、 X3被触摸到时的信号分别为 Sl、 S2、 S3。 设通道 XI、 X2、 X3上单 个菱形图案被完全触摸到时的信号分别为 Stl、 St2、 St3 , 每个菱形图案面积为 m。 手 指与触摸屏之间的电容 C= S/d,感应电容触摸屏随着手指触摸面积的增大,感应信号就 会变强。 由此得出 X方向的触摸面积 MX= m* SI/ Stl+ m* S2/ St2+ m* S3/ St3.同理得 出 Y方向的触摸面积 MY。则手指的触摸面积 M=MX+MY。 目前电容式触摸屏的传输 数据接口一般为 I2C/SPI,通过这种数据传输协议将触摸点的坐标和相应的触摸面积信 息传给电子设备。 然后是电子设备控制芯片对面积信息处理, 处理规则如下: 可将音量分为七个等阶, 并设置每个音量的阈值面积。 对手指触摸面积和阈值面 积进行比较, 当触摸面积达到某一音量对应的阈值面积时, 电子设备控制芯片就产生 触发信息, 用以改变音量。 考虑到每个人的手指触摸面积不尽相同,甚至是成人和儿童的手指面积差别较大, 所以在设置阈值面积时, 本优选实施例提出了一种定义阈值面积的方法: 通过软件记 录该电子设备用户的触摸最大面积 Sg和最小面积 Sm。定义 Sg-S为最大音量对应的阈 值面积 S7, Sm+S为最小音量对应的阈值面积 S1,其中 S为设置的一个变动面积。 7阶 音量对应的阈值面积按照等差数列得出。 触发信息为正弦电波, 较大波幅的电波触发较大音量, 较小波幅的电波触发较小 音量。 设最大音量对应的正弦电波为 W7, 最小音量对应的正弦电波为 Wl, 7阶音量 对应的正弦电波按照波幅等差数列得出。 所以当触摸面积达到某一音量 L对应的阈值面积 SL时, 电子设备控制芯片就触 发对应波幅的正弦电波。 此正弦电波使音频设备音量改变为 L。 实例二: 在画图时, 通过触摸面积的改变控制划线线条的粗细, 参考图 7。 通过对感应信号的处理得出触摸面积, 处理过程同实例一。 然后是通过画图软件对触摸面积信息进行处理, 处理规则如下: 可将线条宽度分为五个等阶, 并设置每个线宽对应的阈值面积。 对手指触摸面积 和阈值面积进行比较, 当触摸面积达到某一线宽对应的阈值面积时, 线宽就做出相应 的改变。 阈值面积的定义方法:通过软件记录该电子设备用户的触摸最大面积 Sg和最小面 积 Sm。 定义 Sg-S为最大线宽对应的阈值面积 S5, Sm+S为最小线宽对应的阈值面积 S1,其中 S为设置的一个变动面积。 5阶线宽对应的阈值面积按照等差数列得出。 实例三: 在一些游戏中, 为符合用户的使用习惯, 需要调整游戏角色跑动快慢。 通过触摸面积的改变控制游戏角色跑动的快慢, 参考图 7。 通过对感应信号的处理得出触摸面积, 处理过程同实例一。 然后是通过游戏软件对触摸面积信息进行处理, 处理规则如下: 可将游戏角色速度分为五个等阶, 并设置每个速度对应的阈值面积。 对手指触摸 面积和阈值面积进行比较, 当触摸面积达到某一速度对应的阈值面积时, 速度就做出 相应的改变。 阈值面积的定义方法:通过软件记录该电子设备用户的触摸最大面积 Sg和最小面 积 Sm。 定义 Sg-S为最大速度对应的阈值面积 S5, Sm+S为最小速度对应的阈值面积 S1,其中 S为设置的一个变动面积。 5阶速度对应的阈值面积按照等差数列得出。 综上所述, 上述实施例通过改变电容式触摸屏上触摸面积变化能够触发电子设备 各种功能, 例如: 调节音量的大小, 画图中改变划线的粗细, 在游戏中调节游戏速度 (例如, 游戏角色的快慢) 等等。 它将用户的触觉、 视觉、 听觉有机地结合起来, 带 给用户一种全新的、 更直观、 更人性化的服务, 提高了用户体验。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而可以将 它们存储在存储装置中由计算装置来执行,或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限 制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种电容式触摸屏信号处理方法, 包括:
根据触摸屏的感应信号得到接触面积;
获取与所述接触面积对应的命令, 其中, 所述命令设置为实现应用的预定 功能;
将所述触发命令发送给所述应用。
2. 根据权利要求 1所述的方法, 其中, 根据触摸屏的感应信号得到接触面积, 获 取与所述接触面积对应的命令包括:
在所述触摸屏保持被触摸的状态下, 根据所述触摸屏的感应信号得到所述 接触面积的变化值, 获取与所述接触面积的变化值对应的命令。
3. 根据权利要求 1所述的方法, 其中, 在根据所述触摸屏的感应信号得到所述接 触面积之前, 还包括:
接收来自用户的接触面积, 预先定义所述用户的接触面积与命令的对应关 系。
4. 根据权利要求 3所述的方法, 其中, 预先定义所述用户的接触面积与命令的对 应关系包括:
保存来自所述用户的最大接触面积和最小接触面积;
从所述最小接触面积到所述最大接触面积按照等差数列划分成不同的面积 范围, 每一个面积范围对应一种命令。
5. 根据权利要求 1至 4中任一项所述的方法, 其中, 根据所述触摸屏的感应信号 得到所述接触面积包括:
预先检测并保存所述触摸屏每条通道上的单个菱形图案被完全触摸时所产 生的信号;
检测各条通道上被触摸时所产生的信号, 根据被触摸时所产生的信号与被 完全触摸时所产生的信号的比例确定所述接触面积。
6. 根据权利要求 1至 4中任一项所述的方法, 其中, 所述命令为以下至少之一: 设置为调节音量大小的命令、 设置为在画图时改变划线粗细的命令、 在游 戏中设置为调节速度的命令。
7. 一种电容式触摸屏信号处理装置, 包括:
第一获取模块, 设置为根据触摸屏的感应信号得到接触面积; 第二获取模块, 设置为获取与所述接触面积对应的命令, 其中, 所述命令 设置为实现应用的预定功能;
发送模块, 设置为将所述触发命令发送给所述应用。
8. 根据权利要求 7所述的装置, 其中, 所述第一获取模块设置为在所述触摸屏保持被触摸的状态下, 根据所述触 摸屏的感应信号得到所述接触面积的变化值;
所述第二获取模块设置为获取与所述接触面积的变化值对应的命令。
9. 根据权利要求 7所述的装置, 其中, 所述装置还包括: 接收模块设置为接收来自用户的接触面积;
预置模块设置为预先定义所述用户的接触面积与命令的对应关系。
10. 根据权利要求 9所述的装置, 其中, 所述预置模块设置为保存来自所述用户的最大接触面积和最小接触面积, 并从所述最小接触面积到所述最大接触面积按照等差数列划分成不同的面积范 围, 每一个面积范围对应一种命令。
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