WO2021226886A1 - 信号检测的方法、装置和触控芯片 - Google Patents

信号检测的方法、装置和触控芯片 Download PDF

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Publication number
WO2021226886A1
WO2021226886A1 PCT/CN2020/090088 CN2020090088W WO2021226886A1 WO 2021226886 A1 WO2021226886 A1 WO 2021226886A1 CN 2020090088 W CN2020090088 W CN 2020090088W WO 2021226886 A1 WO2021226886 A1 WO 2021226886A1
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Prior art keywords
touch screen
active pen
detection mode
detection
detect
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PCT/CN2020/090088
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English (en)
French (fr)
Inventor
陈显朋
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深圳市汇顶科技股份有限公司
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Priority to PCT/CN2020/090088 priority Critical patent/WO2021226886A1/zh
Publication of WO2021226886A1 publication Critical patent/WO2021226886A1/zh

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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
    • 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

Definitions

  • the embodiments of the present application relate to the field of information technology, and more specifically, to a method, device, and touch chip for signal detection.
  • the embodiments of the present application provide a signal detection method, device, and touch chip, which can take into account the function of the active pen and the user's finger operation experience on the touch screen.
  • a signal detection method for detecting an active pen and/or a finger above a touch screen, the touch screen is provided with a connecting piece for fixing the active pen, and the connecting piece is provided with a detection Circuit, the method includes: determining whether the active pen is fixed on the touch screen according to the signal output by the detection circuit; if it is determined that the active pen is fixed on the touch screen, setting the detection mode of the touch screen Switch to the first detection mode, where the first detection mode is only used to detect the finger.
  • the connecting piece is a plug-in connecting piece for embedding the active pen, or the connecting piece is a suction connecting piece for absorbing the active pen.
  • the method further includes: if it is determined that the active pen is not fixed on the touch screen, switching the detection mode of the touch screen to a second detection mode, wherein the second detection mode is The detection mode is used to detect the active pen, as well as to detect the finger.
  • the second detection mode is used to alternately detect the active pen and the finger in one detection period.
  • the method further includes: if the touch screen successfully detects the active pen according to the second detection mode, switching the detection mode of the touch screen to a third detection mode, wherein , The third detection mode is only used to detect the active pen.
  • the method further includes: if the touch screen fails to detect the active pen within a preset time period according to the third detection mode, switching the detection mode of the touch screen to The second detection mode.
  • a signal detection device for detecting an active pen and/or a finger above a touch screen
  • the touch screen is provided with a connecting piece for fixing the active pen
  • the connecting piece is provided with a detection
  • the circuit, the device includes:
  • a processing module configured to determine whether the active pen is fixed on the touch screen according to the signal output by the detection circuit
  • the control module is configured to switch the detection mode of the touch screen to the first detection mode when the processing module determines that the active pen is fixed on the touch screen, wherein the first detection mode is only used to detect the Said fingers.
  • the connecting piece is a plug-in connecting piece for embedding the active pen, or the connecting piece is a suction connecting piece for absorbing the active pen.
  • control module is further configured to: when the processing module determines that the active pen is not fixed on the touch screen, switch the detection mode of the touch screen to the second detection mode, Wherein, the second detection mode is used to detect the active pen, and used to detect the finger.
  • the second detection mode is used to alternately detect the active pen and the finger in one detection period.
  • control module is further configured to: if the touch screen successfully detects the active pen according to the second detection mode, switch the detection mode of the touch screen to the third detection mode , Wherein the third detection mode is only used to detect the active pen.
  • control module is further configured to: if the touch screen fails to detect the active pen within a preset time period according to the third detection mode, set the detection mode of the touch screen to Switch to the second detection mode.
  • a touch control chip including the signal detection device in the second aspect or any possible implementation of the second aspect.
  • the detection mode of the touch screen is switched to the first detection mode, that is, only the finger above the touch screen is detected, thereby improving the reporting rate of finger coordinates;
  • the detection mode of the touch screen is switched to the second detection mode, that is, the active pen and the finger need to be detected at the same time. In this way, it is possible to take into account the function of the active pen and the user's finger operation experience on the touch screen.
  • Figure 1 is a schematic diagram of the principle of the active pen used on the touch screen.
  • Fig. 2 is a schematic flowchart of a signal detection method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the first detection mode of the touch screen.
  • Fig. 4 is a schematic diagram of a second detection mode of the touch screen.
  • Fig. 5 is a schematic diagram of a possible implementation based on the method shown in Fig. 2.
  • Fig. 6 is a schematic diagram of switching between the second detection mode and the third detection mode.
  • Fig. 7 is a schematic diagram of switching between the first detection mode, the second detection mode, and the third detection mode.
  • FIG. 8 is a schematic block diagram of a signal detection device according to an embodiment of the present application.
  • the active pen needs to transmit two types of information, namely, the tip coordinates and the tip pressure, to the screen, and the screen displays the handwriting of the active pen according to the tip coordinates and the tip pressure.
  • a certain number of horizontal and vertical detection electrodes are distributed on the touch screen 200.
  • the coding signal output by the tip electrode of the active pen 100 acts on a certain position of the touch screen 200, and the position corresponds to the horizontal direction.
  • Both the detection electrodes and the vertical detection electrodes generate corresponding detection signals, so that the two-dimensional position coordinates of the active pen 100 on the touch screen 200 can be calculated according to the detection signals.
  • a pressure sensor is also connected to the tip electrode.
  • the pressure sensor is used to detect the pressure generated by the active pen 100 on the touch screen 200, so that the active pen 100 can sense the changes in the user's writing strength, and the touch screen 200 can change the thickness of the handwriting according to the changes in the writing strength, achieving excellent user effects Experience.
  • the active pen and the touch screen are two independent systems, and the two need to communicate and interact in accordance with the active pen protocol before they can be used together.
  • active pen protocols such as the Microsoft Pen Protocol (MPP) protocol, the Universal Stylus Initiative (USI) protocol, etc.
  • MPP Microsoft Pen Protocol
  • USB Universal Stylus Initiative
  • the touch screen needs to detect in real time whether an active pen is approaching. Since the touch screen does not know when the user will use the active pen to write, it can only add extra time to detect whether there is a coding signal output by the active pen in real time on the basis of detecting the finger touch, even if the user is not using the active pen . In each detection cycle, the process of detecting the active pen may take 1-3 ms. This will take up the time for the touch screen to detect finger touches. If the active pen is not used, it will seriously affect the reporting rate of finger coordinates.
  • the present application provides a signal detection method that can take into account the function of the active pen and the user's finger operation experience on the touch screen.
  • FIG. 2 is a schematic flowchart of a signal detection method according to an embodiment of the present application.
  • the method 200 described in FIG. 2 may be executed by, for example, a touch chip, a touch controller, or a processor inside an electronic device.
  • the method 200 is used to detect an active pen and/or a finger above a touch screen, the touch screen is provided with a connector for fixing the active pen, and a detection circuit is provided on the connector.
  • the method 200 includes some or all of the following steps.
  • the detection mode of the touch screen is switched to the first detection mode.
  • the first detection mode is only used to detect fingers.
  • the detection mode of the touch screen is switched to the second detection mode.
  • the second detection mode is used to detect the active pen and used to detect the finger.
  • the second detection mode is used to alternately detect the active pen and the finger in one detection cycle.
  • the detection circuit on the connection between the touch screen and the active pen is used to determine whether the active pen is fixed on the touch screen.
  • the detection mode of the touch screen is switched to the first detection mode, that is, only the finger above the touch screen is detected, thereby improving the reporting rate of finger coordinates;
  • the detection mode of the touch screen is switched to the second detection mode, that is, the active pen and the finger need to be detected at the same time. In this way, it is possible to take into account the function of the active pen and the user's finger operation experience on the touch screen.
  • the connecting piece provided on the touch screen may be, for example, a plug-in connecting piece for embedding the active pen, or the connecting piece is a suction connecting piece for absorbing the active pen.
  • the detection circuit may be, for example, a switch circuit, such as a contact switch on an embedded connector, or a contact detection switch on a housing adsorption-type connector.
  • the switch circuit can output the switch signal to the touch screen and the active pen. For example, when the output switch signal is high, it means that the active pen is fixed on the touch screen, and when the output switch signal is low, it means that the active pen is not fixed on the touch screen. .
  • the touch screen detecting the active pen may refer to the touch screen detecting the coding signal output by the active pen to determine information such as the position coordinates of the pen tip of the active pen.
  • the tip electrode of the active pen outputs a coding signal, and a coupling capacitance is generated between the tip of the active pen and the detection electrode in the touch screen.
  • the coding signal is coupled to the On the detection electrode in the touch screen, the nib coordinates of the active pen are determined by the detection signal output by the detection electrode.
  • the coding signal can also be called a drive signal, an excitation signal, etc., and is an electrical signal emitted by the tip electrode of the active pen for determining the position of the tip of the active pen.
  • the touch screen detects a finger, and the touch screen may detect the touch of the finger, so as to realize the corresponding touch operation.
  • the touch screen detects the touch of the finger, the finger does not emit a signal.
  • the touch screen can determine the touch position of the finger and other information according to the change of the coupling capacitance between the finger and the detection electrode. Therefore, the touch screen detection finger and the detection active pen need to adopt different detection modes for detection.
  • FIG. 3 shows the detection timing of the first detection mode of the touch screen.
  • the first detection mode is a detection mode in which only fingers are detected.
  • the touch screen In each detection period T1, the touch screen only detects the touch of the finger.
  • FIG. 4 shows the detection timing of the second detection mode of the touch screen.
  • the second detection mode is a detection mode in which the active pen and the finger are detected at the same time.
  • each detection period T2 in addition to detecting normal finger touches, additional time is needed to detect the coding signal output by the active pen to determine whether the active pen is close to the touch screen.
  • Each period T2 generally needs to increase the active pen detection time of 1-3ms, so the period T2 will be longer than the period T1 in Figure 3, which will affect the frequency of finger touch detection to a certain extent, and reduce the reporting point of finger coordinates. Rate.
  • the detection of the active pen and the finger shown in FIG. 4 is performed alternately in a detection period T2.
  • the detection of the active pen and the finger may also have other timings, which are not limited here.
  • Fig. 5 is a schematic diagram of a possible implementation based on Fig. 2.
  • the signal output by the detection circuit on the connection between the active pen and the touch screen indicates that the active pen is fixed on the touch screen, it indicates that the user is not using the active pen, so the first detection mode shown in Figure 3 is adopted.
  • the first detection mode shown in Figure 3 is adopted.
  • T1 In each period T1, only the touch of the finger is detected, thereby increasing the reporting rate of finger detection to the highest performance.
  • the second detection mode shown in Figure 4 is adopted, and the touch screen detects both the active pen in each period T2.
  • the output code signal also detects the touch of the finger, thus taking into account the use of the active pen and the detection of the finger touch.
  • the method 300 may further include: if the touch screen successfully detects the active pen according to the second detection mode, switching the detection mode of the touch screen to the third detection mode. Wherein, the third detection mode is only used to detect the active pen.
  • the method 300 may further include: if the touch screen fails to detect the active pen within a preset time period according to the third detection mode, switching the detection mode of the touch screen to the second detection mode.
  • the detection mode of the touch screen is switched to the second detection mode.
  • the three detection mode that is, only the detection mode of the active pen, so as to improve the performance of the active pen.
  • the detection mode of the touch screen is switched from the third detection mode to the second detection mode after the timeout.
  • the detection mode of the touch screen is the first detection mode; and when the active pen is not fixed on the touch screen, the detection mode of the touch screen can be one of the second detection mode or the third detection mode.
  • the detection mode of the touch screen is the first detection mode, that is, only the touch of the finger is detected; when the active pen is detected to be pulled out of the touch screen, the user You may want to use the active pen to write, then the detection mode of the touch screen is switched to the second detection mode, that is, the coding signal output by the active pen and the touch of the finger are detected at the same time; when the touch screen uses the second detection mode to successfully detect the printing output by the active pen Code signal, it means that the user is writing with the active pen, then the detection mode of the touch screen is switched to the third detection mode, that is, only the coding signal output by the active pen is detected; when the touch screen uses the third detection mode, it is not detected for a certain period of time For the coding signal output by the active pen, the user may not use the active pen anymore, the detection mode of the touch screen is switched back to the second detection mode, until the detection
  • the touch screen is provided with a connector for fixing the active pen, and the signal output by the detection circuit on the link can not only be transmitted to the screen end to control the touch screen to switch the detection mode; the detection circuit outputs The signal of can also be transmitted to the pen terminal, so that the active pen enters the working state or the dormant state according to the signal.
  • the active pen determines that it has been inserted into the touch screen according to the signal output by the detection circuit, it enters the dormant state to reduce power consumption; when the active pen determines that the touch screen has been pulled out according to the signal output by the detection circuit, it enters the working state, such as starting to output code Signal and detect the pressure of the pen tip to realize the function of the active pen.
  • the application also provides a signal detection device.
  • the device is used to detect the active pen and/or finger above the touch screen, the touch screen is provided with a connector for fixing the active pen, and the connector is provided with a detection circuit.
  • the device can execute any possible method in the foregoing FIG. 2 to FIG. 7. As shown in FIG. 8, the device 800 includes:
  • the processing module 810 is configured to determine whether the active pen is fixed on the touch screen according to the signal output by the detection circuit;
  • the control module 820 is used for:
  • the processing module 810 determines that the active pen is fixed on the touch screen, switch the detection mode of the touch screen to a first detection mode, where the first detection mode is only used to detect the finger;
  • the processing module 810 determines that the active pen is not fixed on the touch screen, it switches the detection mode of the touch screen to a second detection mode, where the second detection mode is used to detect the active pen, and To detect the finger.
  • the connecting piece is a plug-in connecting piece for embedding the active pen, or the connecting piece is an adsorbing connecting piece for absorbing the active pen.
  • the second detection mode is used to alternately detect the active pen and the finger in one detection period.
  • control module 820 is further configured to: if the touch screen successfully detects the active pen according to the second detection mode, switch the detection mode of the touch screen to a third detection mode, wherein: The third detection mode is only used to detect the active pen.
  • control module 820 is further configured to: if the touch screen fails to detect the active pen within a preset time period according to the third detection mode, switch the detection mode of the touch screen to all The second detection mode.
  • the application also provides a pressure detection device.
  • the device includes a memory and a processor, where the memory is used to store instructions, and the processor is used to read the instructions stored in the memory and execute the method described in any embodiment of the present application according to the instructions.
  • This application also provides an active pen, which can perform the operations performed by the active pen in the foregoing method embodiments.
  • the present application also provides a touch chip, which may include the signal detection device 800 shown in FIG. 8.
  • the present application also provides an electronic device, which may include the signal detection apparatus 800 shown in FIG. 8 and the touch screen in any embodiment of the present application.
  • the present application also provides a signal detection system, including the electronic device and the active pen in the embodiments of the present application.
  • the system, device, and method disclosed in the embodiments of the present application may be implemented in other ways. For example, some features of the method embodiments described above may be ignored or not implemented.
  • the device embodiments described above are merely illustrative, the division of units is only a logical function division, and there may be other divisions in actual implementation, and multiple units or components may be combined or integrated into another system.
  • the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the foregoing coupling includes electrical, mechanical, or other forms of connection.

Abstract

一种信号检测的方法、装置和触控芯片，该方法用于检测触摸屏上方的主动笔和/或手指，触摸屏上设置有用于固定主动笔的连接件，所述连接件上设置有检测电路，所述方法包括：根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上（210）；若确定所述主动笔固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第一检测模式（220），其中，所述第一检测模式仅用于检测所述手指；若确定所述主动笔没有固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第二检测模式（230），其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。所述方法能够兼顾主动笔的功能和用户在触摸屏上的手指操作体验。

Description

信号检测的方法、装置和触控芯片 技术领域
本申请实施例涉及信息技术领域，并且更具体地，涉及信号检测的方法、装置和触控芯片。
背景技术
随着电容屏和主动笔的普及，主动笔的应用变得越来越广泛。支持主动笔功能的需求逐渐从笔记本、平板电脑等大屏产品向手机产品延伸。一方面，随着手机游戏的流行，手机产品对触摸屏的性能要求越来越高，各手机厂商都希望提高手指坐标的报点率，以便为用户提供更流畅的操作，给用户带来极致的操控体验。另一方面，这些设备也同时需要支持主动笔的功能，以便为商务、教育等方面的书写应用提供便利。因此，如何兼顾主动笔的功能和用户在触摸屏上的手指操作体验，成为亟待解决的问题。
发明内容
本申请实施例提供一种信号检测的方法、装置和触控芯片，能够兼顾主动笔的功能和用户在触摸屏上的手指操作体验。
第一方面，提供了一种信号检测的方法，用于检测触摸屏上方的主动笔和/或手指，所述触摸屏上设置有用于固定所述主动笔的连接件，所述连接件上设置有检测电路，所述方法包括：根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上；若确定所述主动笔固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第一检测模式，其中，所述第一检测模式仅用于检测所述手指。
在一种可能的实现方式中，所述连接件为用于嵌入所述主动笔的插拔式连接件，或者，所述连接件为用于吸附所述主动笔的吸附式连接件。
在一种可能的实现方式中，所述方法还包括：若确定所述主动笔没有固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第二检测模式，其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。
在一种可能的实现方式中，所述第二检测模式用于在一个检测周期内交替检测所述主动笔和所述手指。
在一种可能的实现方式中，所述方法还包括：若所述触摸屏根据所述第二检测模式成功检测到所述主动笔，则将所述触摸屏的检测模式切换至第三检测模式，其中，所述第三检测模式仅用于检测所述主动笔。
在一种可能的实现方式中，所述方法还包括：若所述触摸屏根据所述第三检测模式在预设时长内未成功检测到所述主动笔，则将所述触摸屏的检测模式切换至所述第二检测模式。
第二方面，提供了一种信号检测的装置，用于检测触摸屏上方的主动笔和/或手指，所述触摸屏上设置有用于固定所述主动笔的连接件，所述连接件上设置有检测电路，所述装置包括：
处理模块，用于根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上；
控制模块，用于在所述处理模块确定所述主动笔固定在所述触摸屏上时，将所述触摸屏的检测模式切换至第一检测模式，其中，所述第一检测模式仅用于检测所述手指。
在一种可能的实现方式中，所述连接件为用于嵌入所述主动笔的插拔式连接件，或者，所述连接件为用于吸附所述主动笔的吸附式连接件。
在一种可能的实现方式中，所述控制模块还用于：在所述处理模块确定所述主动笔没有固定在所述触摸屏上时，将所述触摸屏的检测模式切换至第二检测模式，其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。
在一种可能的实现方式中，所述第二检测模式用于在一个检测周期内交替检测所述主动笔和所述手指。
在一种可能的实现方式中，所述控制模块还用于：若所述触摸屏根据所述第二检测模式成功检测到所述主动笔，则将所述触摸屏的检测模式切换至第三检测模式，其中，所述第三检测模式仅用于检测所述主动笔。
在一种可能的实现方式中，所述控制模块还用于：若所述触摸屏根据所述第三检测模式在预设时长内未成功检测到所述主动笔，则将所述触摸屏的检测模式切换至所述第二检测模式。
第三方面，提供了一种触控芯片，包括第二方面或第二方面的任意可能的实现方式中的信号检测的装置。
基于上述技术方案，通过触摸屏和主动笔之间的连接件上的检测电路， 确定主动笔是否固定在触摸屏上。当主动笔固定在触摸屏上时，表明用户并未使用主动笔，因此将触摸屏的检测模式切换至第一检测模式，即仅检测触摸屏上方的手指，从而提高手指坐标的报点率；当主动笔未固定在触摸屏上时，用户一般是想使用主动笔进行书写，因此将触摸屏的检测模式切换至第二检测模式，即需要同时检测主动笔和手指。这样，就能够兼顾主动笔的功能和用户在触摸屏上的手指操作体验。
附图说明
图1是主动笔在触摸屏上使用的原理示意图。
图2本申请实施例的信号检测的方法的示意性流程图。
图3是触摸屏的第一检测模式的示意图。
图4是触摸屏的第二检测模式的示意图。
图5是基于图2所示的方法的一种可能的实现方式的示意图。
图6是第二检测模式和第三检测模式之间的切换示意图。
图7是第一检测模式、第二检测模式和第三检测模式之间的切换示意图。
图8是本申请实施例的信号检测的装置的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
主动笔在实际使用时需要传输笔尖坐标和笔尖压力两种信息给屏端，屏端根据笔尖坐标和笔尖压力显示主动笔的笔迹。例如图1所示，触摸屏200上分布着一定数量的横向和纵向的检测电极，主动笔100的笔尖(tip)电极输出的打码信号作用在触摸屏200的某一位置，则该位置对应的横向的检测电极和纵向的检测电极都会产生相应的检测信号，从而可以根据该检测信号计算主动笔100在触摸屏200上的二维位置坐标。笔尖电极还连接有一个压力传感器。该压力传感器用于检测主动笔100对触摸屏200产生的压力，从而可以使主动笔100感测用户书写力度的变化，并使触摸屏200根据书写力度的变化来改变笔迹的粗细，达到优异的用户效果体验。
主动笔和触摸屏是两个互相独立的系统，两者需要按照主动笔协议进行通讯和交互才能配合使用。对于一般的主动笔协议来说，例如微软主动笔协议(Microsoft Pen Protocol，MPP)协议、通用触控笔联盟(Universal Stylus  Initiative，USI)协议等，需要触摸屏实时检测是否有主动笔靠近。由于触摸屏并不知道用户何时会使用主动笔进行书写，因此只能在检测手指触摸的基础上，增加额外的时间来实时检测有没有主动笔输出的打码信号，即使用户并没有使用主动笔。在每个检测周期中，检测主动笔的过程可能需要1-3ms的耗时。这样就会占用触摸屏检测手指触摸的时间。在没有主动笔使用的情况下，会严重影响手指坐标的报点率。
为此，本申请提供了一种信号检测的方法，能够兼顾主动笔的功能和用户在触摸屏上的手指操作体验。
图2是本申请实施例的信号检测的方法的示意性流程图。图2所述的方法200例如可以由触控芯片、触摸控制器或者电子设备内部的处理器执行。
该方法200用于检测触摸屏上方的主动笔和/或手指，该触摸屏上设置有用于固定该主动笔的连接件，该连接件上设置有检测电路。
如图2所示，方法200包括以下步骤中的部分或全部。
在210中，根据检测电路输出的信号，确定主动笔是否固定在触摸屏上。
若确定主动笔固定在触摸屏上，则执行220；若确定主动笔没有固定在触摸屏上，则执行230。
在220中，将触摸屏的检测模式切换至第一检测模式。
其中，该第一检测模式仅用于检测手指。
在230中，将触摸屏的检测模式切换至第二检测模式。
其中，该第二检测模式用于检测该主动笔，以及用于检测该手指。
例如，该第二检测模式用于在一个检测周期内交替检测主动笔和手指。
该实施例中，通过触摸屏和主动笔之间的连接件上的检测电路，确定主动笔是否固定在触摸屏上。当主动笔固定在触摸屏上时，表明用户并未使用主动笔，因此将触摸屏的检测模式切换至第一检测模式，即仅检测触摸屏上方的手指，从而提高手指坐标的报点率；当主动笔未固定在触摸屏上时，用户一般是想使用主动笔进行书写，因此将触摸屏的检测模式切换至第二检测模式，即需要同时检测主动笔和手指。这样，就能够兼顾主动笔的功能和用户在触摸屏上的手指操作体验。
该触摸屏上设置的连接件例如可以是用于嵌入该主动笔的插拔式连接件，或者，该连接件是用于吸附该主动笔的吸附式连接件。
该检测电路例如可以是一个开关电路，比如嵌入式连接件上的触点开关， 或者外壳吸附式连接件上的接触检测开关。该开关电路可以输出开关信号给触摸屏和主动笔，例如，输出的该开关信号为高电平时表示主动笔固定在触摸屏上，而输出的该开关信号为低电平时表示主动笔没有固定在触摸屏上。
本申请实施例中，触摸屏检测主动笔，可以指触摸屏检测主动笔输出的打码信号，以确定主动笔的笔尖位置坐标等信息。当触摸屏检测主动笔的笔尖坐标位置等信息时，由主动笔的笔尖电极输出打码信号，主动笔的笔尖与触摸屏内的检测电极之间会产生耦合电容，该打码信号经过耦合电容耦合到触摸屏内的检测电极上，从而通过该检测电极输出的检测信号来确定主动笔的笔尖坐标。
该打码信号也可以称为驱动信号、激励信号等，是主动笔的笔尖电极发射的用于确定主动笔笔尖位置的电信号。
本申请实施例中，触摸屏检测手指，可以指触摸屏检测手指的触摸，从而实现相应的触摸操作。触摸屏在检测手指的触摸时，手指是不会发射信号的，触摸屏可以根据手指与检测电极之间的耦合电容的变化情况，确定手指的触摸位置等信息。因此，触摸屏检测手指和检测主动笔需要采用不同的检测模式来进行检测。
图3示出了触摸屏的第一检测模式的检测时序。如图3所示，第一检测模式为仅检测手指的检测模式。在每个检测周期T1中，触摸屏仅检测手指的触摸。
图4示出了触摸屏的第二检测模式的检测时序。如图4所示，第二检测模式为同时检测主动笔和手指的检测模式。在每个检测周期T2内，除了检测正常的手指触摸，还需要额外的时间检测主动笔输出的打码信号以确定是否有主动笔靠近触摸屏。每个周期T2内一般需要增加1-3ms的主动笔检测时间，所以周期T2会比图3中的周期T1要长一些，在一定程度上会影响手指触摸检测的频率，减低手指坐标的报点率。
图4中所示的主动笔和手指的检测是在一个检测周期T2中交替执行，在实际应用中，主动笔和手指的检测也可以具有其他时序，这里不做限定。
图5是基于图2的一种可能的实现方式的示意图。如图6所示，当主动笔和触摸屏之间的连接件上的检测电路输出的信号指示主动笔固定在触摸屏时，表明用户并未使用主动笔，因此采用图3所示的第一检测模式，在每个周期T1内仅检测手指的触摸，从而将手指检测的报点率提升至最高性能。
当该检测电路输出的信号指示主动笔离开触摸屏时，表明用户可能想使用主动笔在触摸屏上进行书写，因此采用图4所示的第二检测模式，在每个周期T2内触摸屏既检测主动笔输出的打码信号，又检测手指的触摸，从而兼顾主动笔的使用和手指触摸检测。
在一种实现方式中，方法300还可以包括：若触摸屏根据该第二检测模式成功检测到主动笔，则将触摸屏的检测模式切换至第三检测模式。其中，该第三检测模式仅用于检测该主动笔。
在一种实现方式中，方法300还可以包括：若触摸屏根据该第三检测模式在预设时长内未成功检测到主动笔，则将触摸屏的检测模式切换至该第二检测模式。
例如图6所示，在320中，触摸屏的检测模式切换至第二检测模式后，如果触摸屏根据该第二检测模式成功检测到主动笔输出的打码信号，则将触摸屏的检测模式切换至第三检测模式，即仅检测主动笔的检测模式，从而提高主动笔的使用性能。而当触摸屏在预设时长内没有检测到主动笔输出的打码信号，则超时后触摸屏的检测模式由第三检测模式切换回第二检测模式。
主动笔固定在触摸屏的情况下，触摸屏的检测模式为第一检测模式；而主动笔没有固定在触摸屏的情况下，触摸屏的检测模式可以为第二检测模式或者第三检测模式中的一种。
例如图7所示，检测到主动笔被插入触摸屏时，用户没有使用主动笔，触摸屏的检测模式为第一检测模式，即仅检测手指的触摸；检测到主动笔从触摸屏上拔出时，用户可能想使用主动笔进行书写，则触摸屏的检测模式切换至第二检测模式，即同时检测主动笔输出的打码信号和手指的触摸；当触摸屏使用第二检测模式成功检测到主动笔输出的打码信号，则说明用户正在用主动笔进行书写，则触摸屏的检测模式切换至第三检测模式，即仅检测主动笔输出的打码信号；当触摸屏使用第三检测模式在一定时长都没有检测到主动笔输出的打码信号，用户可能不使用主动笔了，则触摸屏的检测模式切换回第二检测模式，直至再次检测到主动笔插入触摸屏时将触摸屏的检测模式切换至第一检测模式。
本申请实施例中，触摸屏上设置有用于固定所述主动笔的连接件，该链接件上的检测电路输出的信号不仅可以传输至屏端，以控制触摸屏进行检测模式的切换；该检测电路输出的信号也可以传输至笔端，以使主动笔根据该 信号进入工作状态或者休眠状态。例如，当主动笔根据检测电路输出的信号确定已经插入触摸屏，则进入休眠状态以降低功耗；当主动笔根据检测电路输出的信号确定已经拔出触摸屏，则进入工作状态，比如开始输出打码信号和检测笔尖压力等，以实现主动笔的功能。
本申请还提供一种信号检测的装置。该装置用于检测触摸屏上方的主动笔和/或手指，所述触摸屏上设置有用于固定所述主动笔的连接件，所述连接件上设置有检测电路。具体地，该装置可以执行前述图2至图7中任意可能的方法。如图8所示，该装置800包括：
处理模块810，用于根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上；
控制模块820，用于：
在处理模块810确定所述主动笔固定在所述触摸屏上时，将所述触摸屏的检测模式切换至第一检测模式，其中，所述第一检测模式仅用于检测所述手指；
在处理模块810确定所述主动笔没有固定在所述触摸屏上时，将所述触摸屏的检测模式切换至第二检测模式，其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。
在一种实现方式中，所述连接件为用于嵌入所述主动笔的插拔式连接件，或者，所述连接件为用于吸附所述主动笔的吸附式连接件。
在一种实现方式中，所述第二检测模式用于在一个检测周期内交替检测所述主动笔和所述手指。
在一种实现方式中，控制模块820还用于：若所述触摸屏根据所述第二检测模式成功检测到所述主动笔，则将所述触摸屏的检测模式切换至第三检测模式，其中，所述第三检测模式仅用于检测所述主动笔。
在一种实现方式中，控制模块820还用于：若所述触摸屏根据所述第三检测模式在预设时长内未成功检测到所述主动笔，则将所述触摸屏的检测模式切换至所述第二检测模式。
本申请还提供一种压力检测的装置。该装置包括存储器和处理器，其中，该存储器用于存储指令，该处理器用于读取该存储器中存储的指令并根据该指令执行本申请任意实施例中所述的方法。
本申请还提供了一种主动笔，该主动笔可以执行前述方法实施例中由主 动笔执行的操作。
本申请还提供一种触控芯片，该触控芯片可以包括图8所示的信号检测的装置800。
本申请还提供一种电子设备，该电子设备可以包括图8所示的信号检测的装置800以及本申请任意实施例中的触摸屏。
本申请还提供一种信号检测的系统，包括本申请实施例中的电子设备以及主动笔。
需要说明的是，在不冲突的前提下，本申请描述的各个实施例和/或各个实施例中的技术特征可以任意的相互组合，组合之后得到的技术方案也应落入本申请的保护范围。
本申请实施例中所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的方法实施例的一些特征可以忽略或者不执行。以上所描述的装置实施例仅仅是示意性的，单元的划分仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，多个单元或组件可以结合或者可以集成到另一个系统。另外，各单元之间的耦合或各个组件之间的耦合可以是直接耦合，也可以是间接耦合，上述耦合包括电的、机械的或其它形式的连接。
本领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的装置和设备的具体工作过程以及产生的技术效果，可以参考前述方法实施例中对应的过程和技术效果，在此不再赘述。
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围，本领域技术人员可以在上述实施例的基础上进行各种改进和变形，而这些改进或者变形均落在本申请的保护范围内。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (11)

  1. 一种信号检测的方法，其特征在于，用于检测触摸屏上方的主动笔和/或手指，所述触摸屏上设置有用于固定所述主动笔的连接件，所述连接件上设置有检测电路，所述方法包括：
    根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上；
    若确定所述主动笔固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第一检测模式，其中，所述第一检测模式仅用于检测所述手指；
    若确定所述主动笔没有固定在所述触摸屏上，则将所述触摸屏的检测模式切换至第二检测模式，其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。
  2. 根据权利要求1所述的方法，其特征在于，所述连接件为用于嵌入所述主动笔的插拔式连接件，或者，所述连接件为用于吸附所述主动笔的吸附式连接件。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第二检测模式用于在一个检测周期内交替检测所述主动笔和所述手指。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    若所述触摸屏根据所述第二检测模式成功检测到所述主动笔，则将所述触摸屏的检测模式切换至第三检测模式，其中，所述第三检测模式仅用于检测所述主动笔。
  5. 根据权利要求4所述的方法，其特征在于，所述方法还包括：
    若所述触摸屏根据所述第三检测模式在预设时长内未成功检测到所述主动笔，则将所述触摸屏的检测模式切换至所述第二检测模式。
  6. 一种信号检测的装置，其特征在于，用于检测触摸屏上方的主动笔和/或手指，所述触摸屏上设置有用于固定所述主动笔的连接件，所述连接件上设置有检测电路，所述装置包括：
    处理模块，用于根据所述检测电路输出的信号，确定所述主动笔是否固定在所述触摸屏上；
    控制模块，用于：
    在所述处理模块确定所述主动笔固定在所述触摸屏上时，将所述触摸屏 的检测模式切换至第一检测模式，其中，所述第一检测模式仅用于检测所述手指；
    在所述处理模块确定所述主动笔没有固定在所述触摸屏上时，将所述触摸屏的检测模式切换至第二检测模式，其中，所述第二检测模式用于检测所述主动笔，以及用于检测所述手指。
  7. 根据权利要求6所述的装置，其特征在于，所述连接件为用于嵌入所述主动笔的插拔式连接件，或者，所述连接件为用于吸附所述主动笔的吸附式连接件。
  8. 根据权利要求6或7所述的装置，其特征在于，所述第二检测模式用于在一个检测周期内交替检测所述主动笔和所述手指。
  9. 根据权利要求6至8中任一项所述的装置，其特征在于，所述控制模块还用于：
    若所述触摸屏根据所述第二检测模式成功检测到所述主动笔，则将所述触摸屏的检测模式切换至第三检测模式，其中，所述第三检测模式仅用于检测所述主动笔。
  10. 根据权利要求9所述的装置，其特征在于，所述控制模块还用于：
    若所述触摸屏根据所述第三检测模式在预设时长内未成功检测到所述主动笔，则将所述触摸屏的检测模式切换至所述第二检测模式。
  11. 一种触控芯片，其特征在于，包括根据权利要求6至10中任一项所述的信号检测的装置。
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