WO2018098771A1 - 确定方位角或姿态的方法、触控输入装置、触控屏及系统 - Google Patents

确定方位角或姿态的方法、触控输入装置、触控屏及系统 Download PDF

Info

Publication number
WO2018098771A1
WO2018098771A1 PCT/CN2016/108221 CN2016108221W WO2018098771A1 WO 2018098771 A1 WO2018098771 A1 WO 2018098771A1 CN 2016108221 W CN2016108221 W CN 2016108221W WO 2018098771 A1 WO2018098771 A1 WO 2018098771A1
Authority
WO
WIPO (PCT)
Prior art keywords
input device
touch input
sensing
touch
azimuth
Prior art date
Application number
PCT/CN2016/108221
Other languages
English (en)
French (fr)
Inventor
王朋
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2016/108221 priority Critical patent/WO2018098771A1/zh
Priority to CN201680001593.0A priority patent/CN107111387B/zh
Publication of WO2018098771A1 publication Critical patent/WO2018098771A1/zh

Links

Images

Classifications

    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • 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
    • G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • 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
    • 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
    • G06F3/0441—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals

Definitions

  • the present application relates to the field of touch sensing technologies, and in particular, to a method for determining an azimuth or posture of a touch input device, a touch input device, a touch screen, and a system.
  • the touch screens used in mobile terminals mainly include capacitive touch screens and resistive touch screens.
  • capacitive touch screens have gained more and more with their good definition, light transmittance and touch. User's favor.
  • the most widely used mobile terminals are mobile phones and tablets.
  • the touch input operation can be performed by replacing the finger with other touch input devices such as a stylus. If other touch input devices such as a stylus are required to achieve a better user experience, it is necessary to produce a handwriting thickness depending on the tilt angle of the pen body. In order to accurately know the thickness and direction of the handwriting generated by other touch input devices such as a stylus on the capacitive sensitive surface, it is necessary to determine the posture of other touch input devices such as a stylus.
  • one of the technical problems solved by the embodiments of the present application is to provide a method for determining an azimuth or posture of a touch input device, a touch input device, a touch screen, and a system for reducing the touch input device. Cost and size simplify design.
  • An embodiment of the present application provides a method for determining an azimuth of a touch input device, including:
  • An embodiment of the present application provides a method for determining a gesture of a touch input device, including:
  • An embodiment of the present disclosure provides a touch input device.
  • the touch input device is provided with a sensing electrode, and the sensing electrode and the touch screen form an input capacitor.
  • the touch input device includes:
  • a sensing module configured to detect a position of an input capacitor formed by the sensing electrode and the touch screen
  • the calculation module is configured to obtain a capacitance value of the sensing capacitor formed around the input capacitor according to the position of the input capacitor, and calculate an azimuth of the touch input device according to the capacitance value of the sensing capacitor.
  • the embodiment of the present application provides a touch input device with the above structure, further comprising a tilt sensor disposed on the touch input device to determine tilt data of the touch input device.
  • the embodiment of the present application provides a touch screen, including:
  • a sensing module configured to detect a position of an input capacitor formed by the sensing electrode and the touch screen on the touch input device, where the touch input device is configured to input information on the touch screen;
  • the calculation module is configured to obtain a capacitance value of the sensing capacitor formed around the input capacitor according to the position of the input capacitor, and calculate an azimuth of the touch input device according to the capacitance value of the sensing capacitor.
  • An embodiment of the present disclosure provides a touch input system, where the system includes the touch input device and a corresponding touch screen, and the touch screen determines the location according to the azimuth and tilt data sent by the touch input device.
  • the touch input device is configured to include the touch screen and the corresponding touch input device, and the touch screen receives the tilt data sent by the touch input device, and according to the sensing capacitor
  • the capacitance value calculates an azimuth of the touch input device to determine a posture of the touch input device according to the azimuth and tilt data of the touch input device.
  • the embodiment of the present application determines the azimuth of the touch input device by using a sensing electrode disposed on the touch input device, and obtains the tilt data by using a tilt sensor disposed on the touch input device.
  • the touch screen determines a posture of the touch input device according to the azimuth angle and the tilt data.
  • the application does not need to provide two sensing electrodes on the touch input device, and the posture of the touch input device can be obtained only by using one sensing electrode and the tilt sensor.
  • the application can reduce the cost and volume of the touch input device and simplify the design.
  • FIG. 1 is a schematic diagram of the use of an exemplary touch input device
  • FIG. 2 is a flow chart of a method for determining an azimuth of a touch input device according to the present application
  • 3a to 3b are schematic diagrams showing the coupling capacitance formed by the touch input device and the touch screen of the present application
  • FIG. 4 is a schematic diagram of some embodiments of a step T102 of a method for determining an azimuth of a touch input device
  • FIG. 5 is a flow chart of a method for determining a gesture of a touch input device according to the present application
  • FIG. 6 is a schematic diagram of ball coordinates for calculating a posture of a touch input device according to the present application.
  • FIGS. 7a-7b are hardware diagrams of some embodiments of the touch input device of the present application.
  • 7c is a schematic structural diagram of some embodiments of a touch input device or a touch screen of the present application.
  • 8a, 8b, and 8c are schematic structural views of other embodiments of the touch input device of the present application.
  • 9a-9b are schematic structural diagrams of still another embodiment of the touch input device of the present application.
  • the embodiment of the present application determines an azimuth of the touch input device by using a sensing electrode disposed on the touch input device, and obtains the tilt data by using a tilt sensor disposed on the touch input device.
  • the touch screen determines a posture of the touch input device according to the azimuth angle and the tilt data.
  • the application does not need to provide two sensing electrodes on the touch input device, and the posture of the touch input device can be obtained only by using one sensing electrode and the tilt sensor.
  • the application reduces the cost and volume of the touch input device and simplifies the design difficulty.
  • the touch input device of the present application may be stylus pen, and other touch input devices and/or pointing devices may be used in various embodiments of the present application.
  • An exemplary panel having a capacitively sensitive surface as described herein can be a touch screen, and other panels having capacitive sensitive surfaces that can sense object touch or hover can be used in various embodiments of the present application.
  • FIG. 1 illustrates various embodiments of an exemplary use of stylus 11 and touch screen 12.
  • the row electrode array 121 of the touch screen 12 and the column electrode array 122 are vertically staggered to form the sensing unit 123 to detect the posture of the stylus pen 11 .
  • the present application provides a method for determining an azimuth of a touch input device, including:
  • T101 Detect a position of an input capacitor formed by the sensing electrode and the touch screen on the touch input device.
  • the sensing electrode on the touch input device is close to the sensing unit of the touch screen, thereby forming an input capacitance, and detecting the position of the input capacitor.
  • T102 Obtain a capacitance value of the sensing capacitor formed around the input capacitor according to the position of the input capacitor, and calculate an azimuth of the touch input device according to the sensing capacitor value.
  • the present application detects the position of the input capacitor formed by the sensing electrode, and further detects the capacitance value of the sensing capacitor formed around the input capacitor.
  • the step T102 is specifically: establishing a Cartesian coordinate system according to the row electrode and the column electrode of the touch screen, and selecting a capacitance value of the sensing capacitor at at least four nodes around the input capacitor to calculate the touch input.
  • the azimuth of the device is specifically: establishing a Cartesian coordinate system according to the row electrode and the column electrode of the touch screen, and selecting a capacitance value of the sensing capacitor at at least four nodes around the input capacitor to calculate the touch input. The azimuth of the device.
  • FIG. 3a front view of the capacitive sensing surface
  • FIG. 3b top view of the capacitive sensing surface
  • the capacitance value of the sensing capacitance of the sensing unit S13, S23, S33, S12, S32, S11, S21, S31 around the position A of the input capacitor ie, the capacitance value of the coupling capacitor
  • the capacitance value of the sensing capacitor of at least four nodes is selected, and the azimuth angle of the touch input device is obtained by using the calculation method of the two-two difference.
  • the touch screen establishes a Cartesian coordinate system to implement two-dimensional coordinate calculation, selects an axis parallel to the row electrodes of the touch screen as an X axis, and selects an axis parallel to the column electrodes of the touch screen as a Y axis.
  • the step T102 includes:
  • T122 a difference between a capacitance value of the sensing capacitance of at least two nodes on the positive half-axis of the Cartesian coordinate system and a capacitance value of the sensing capacitance of at least two nodes on the negative half-axis of the Cartesian coordinate system The value is taken as the second difference.
  • T132 Calculate an inverse tangent function of the ratio of the second difference to the first difference, to obtain an azimuth of the touch input device.
  • the actual azimuth angle ⁇ 0°.
  • a rectangular coordinate system is established according to the row electrode and the column electrode of the capacitance sensitive surface, and the sensing capacitance value of at least four nodes is selected for calculation, and the azimuth of the touch input device is obtained.
  • the value is -1.5°. Therefore, the azimuth obtained by the simulation function model of T112 to T132 is close to the actual azimuth. In the case of an unknown azimuth, the azimuth can be calculated using a simulation function model of T112 to T132.
  • the actual azimuth angle ⁇ 45°.
  • a rectangular coordinate system is established according to the row electrode and the column electrode of the capacitance sensitive surface, and the sensing capacitance value of at least four nodes is selected for calculation, and the azimuth of the touch input device is obtained.
  • the value is 46.6°. Therefore, the azimuth obtained by the simulation function model of T112 to T132 is close to the actual azimuth. In the case of an unknown azimuth, the azimuth can be calculated using a simulation function model of T112 to T132.
  • another embodiment of the present application provides a method for determining a gesture of a touch input device, including:
  • T201 Determine an azimuth of the touch input device by using a sensing electrode disposed on the touch input device.
  • the step T201 includes steps T101 to T102, and thus is not described herein again.
  • T202 Determine tilt data of the touch input device by using a tilt sensor disposed on the touch input device.
  • T203 Determine a posture of the touch input device according to the azimuth angle and the tilt data.
  • the touch input device is placed in a spherical coordinate system.
  • the coordinates in the spherical coordinate system are expressed as (r, ⁇ , ⁇ ), that is, the touch input device.
  • the pose can be expressed by three factors, radius r, tilt data ⁇ and azimuth angle ⁇ .
  • the direction of writing of the touch input device can be determined by the azimuth angle ⁇ , and the thickness of the touch input device is determined by the tilt data ⁇ , thereby determining the position by the azimuth angle and the tilt data.
  • the attitude of the touch input device is expressed as (r, ⁇ , ⁇ ), that is, the touch input device.
  • the pose can be expressed by three factors, radius r, tilt data ⁇ and azimuth angle ⁇ .
  • the direction of writing of the touch input device can be determined by the azimuth angle ⁇
  • the thickness of the touch input device is determined by the tilt data ⁇ , thereby determining the position by the azimuth angle and the tilt data.
  • the present application further provides a touch input device.
  • the main body of the touch input device is provided with a sensing electrode 71, and the sensing electrode 71 forms an input capacitance with the touch screen.
  • the touch input device includes:
  • the sensing module 701 is configured to detect a position of an input capacitor formed by the sensing electrode and the touch screen;
  • the calculation module 702 is configured to obtain a capacitance value of the sensing capacitor formed around the input capacitor according to the position of the input capacitor, and calculate an azimuth of the touch input device according to the capacitance value of the sensing capacitor.
  • the calculating module 702 is specifically configured to establish a Cartesian coordinate system according to the row electrode and the column electrode of the touch screen, and select a capacitance value of the sensing capacitor at at least four nodes around the input capacitor to calculate the touch. Enter the azimuth of the device.
  • the stylus 7 may include a central axis 73 and a pen tip 74, and the sensing electrode 71 is located at the touch The inside of the pen is controlled and in contact with the touch screen.
  • the sensing electrode 71 is pencil-shaped, that is, has a tapered tip, and the tapered tip is connected to the cylindrical pen body. See Figure 8b, said The sensing electrode 71 serves as a tapered body of the entire stylus pen 7.
  • the sensing electrode 71 is a tapered body of the nib 74.
  • the sensing electrode 71 can be any suitable electrically conductive material such as metal, paint, ink, and the like.
  • the sensing electrode 71 is wrapped by an insulating layer 77, and the insulating layer 77 is made of a friction-resistant material, which ensures that multiple writings do not wear and provide appropriate resistance, making writing closer to real writing.
  • the shape of the sensing electrode 71 is a non-spherical rotating body, such as a columnar shape or a tapered shape.
  • the nib 74 can be replaced, such as Figure 8c.
  • the sensing electrode 71 is connected to the circuit board 76 via an electrical connection line 75 that can house a stylus circuit, such as signal transmitting and receiving components, signal processing components, and the like.
  • the stylus touches or hoveres over the touch screen.
  • the stylus operates based on the position of the touch screen. Therefore, detecting the stylus pose can facilitate operation on the touch screen.
  • a further embodiment of the present application further provides a touch input device, as shown in FIG. 9a and FIG. 9b, which includes the above-mentioned sensing electrode 71 disposed on the touch input device 7, and further includes the touch input device.
  • a tilt sensor 72 on the device is used to determine the tilt data of the touch input device 7.
  • the tilt sensor 72 is a linear accelerometer.
  • the touch input device of the present embodiment determines the azimuth of the touch input device 7 by using the sensing electrode 71, and determines the tilt data of the touch input device 7 by using the tilt sensor 72. Thereby determining the attitude of the touch input device based on the azimuth angle and the tilt data.
  • a touch screen includes a sensing module 701 and a computing module 702 in FIG. 7c, that is, the touch screen is used to detect the sensing electrode and the touch screen. a position of the input capacitor formed; obtaining a capacitance value of the sensing capacitor formed around the input capacitor according to the position of the input capacitor, and calculating an azimuth of the touch input device according to the capacitance value of the sensing capacitor.
  • a further embodiment of the present application further provides a touch input system, including the touch input device 7 and the corresponding touch screen (not shown) in the corresponding embodiment of FIG. 7c, the touch The control panel determines the posture of the touch input device 7 according to the azimuth and tilt data sent by the touch input device 7;
  • the touch input system includes a touch screen (not shown) and a corresponding touch input device 7 according to the previous example; the touch screen includes a sensing module 701 and a calculation module 702.
  • the azimuth of the touch input device 7 can be obtained, and the touch screen receives the tilt data sent by the touch input device 7; the touch screen can be according to the azimuth and tilt of the touch input device 7
  • the data determines the attitude of the touch input device 7.
  • the present invention does not need to provide two sensing electrodes on the touch input device, and the posture of the touch input device can be obtained only by a sensing electrode and a tilt sensor.
  • the application can reduce the cost and volume of the touch input device and simplify the design difficulty.
  • embodiments of the embodiments of the present application can be provided as a method, apparatus (device), or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种确定方位角或姿态的方法、触控输入装置、触控屏及系统，所述方法包括：检测触控输入装置上的感应电极与触控屏所形成的输入电容的位置（T101）；根据输入电容的位置，获得输入电容周围所形成的感应电容的电容值，根据感应电容的电容值计算触控输入装置的方位角（T102）；利用设置在触控输入装置上的倾角传感器确定触控输入装置的倾斜数据（T202）；根据方位角和倾斜数据确定触控输入装置的姿态（T203）。所述方法无需在所述触控输入装置上设置两个感应电极，仅通过一感应电极和倾角传感器即可获得所述触控输入装置的姿态，可缩减触控输入装置的成本和体积，简化设计难度。

Description

确定方位角或姿态的方法、触控输入装置、触控屏及系统 技术领域
本申请涉及触控感测技术领域，尤其涉及一种确定触控输入装置方位角或姿态的方法、触控输入装置、触控屏及系统。
背景技术
随着触控技术和移动终端技术的发展，越来越多的移动终端采用触控方式进行人机交互。目前移动终端所采用的触控屏主要有电容式触控屏和电阻式触控屏两种，其中电容式触控屏以其良好的清晰度、透光率和触感，得到了越来越多用户的青睐。移动终端目前应用最广泛的是手机和平板电脑。
电容式触控屏除了可以用手指直接触控操作以外，还可以通过触控笔等其它触控输入装置替代手指进行触控输入操作。触控笔等其它触控输入装置若要达到比较好的用户体验，就需要依据笔身倾斜角度不同产生笔迹粗细的效果。为了准确的获知触控笔等其它触控输入装置在电容敏感表面产生的笔迹粗细以及方向的情况，需要确定触控笔等其它触控输入装置的姿态。
因此，如何缩减触控输入装置的成本和体积，简化设计难度,成为现有技术中亟需解决的技术问题。
发明内容
有鉴于此，本申请实施例所解决的技术问题之一在于提供一种确定触控输入装置方位角或姿态的方法、触控输入装置、触控屏及系统，用以降低触控输入装置的成本和体积，简化设计难度。
本申请实施例提供一种确定触控输入装置方位角的方法，包括：
检测所述触控输入装置上的感应电极与触控屏所形成的输入电容的位置；
根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
本申请实施例提供一种确定触控输入装置姿态的方法，包括：
通过上述的方法确定所述触控输入装置的方位角；
利用设置在所述触控输入装置上的倾角传感器确定所述触控输入装置的 倾斜数据；
根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。
本申请实施例提供一种触控输入装置，所述触控输入装置的主体上设置感应电极，所述感应电极与触控屏形成输入电容，所述触控输入装置包括：
感测模块，用于检测所述感应电极与触控屏所形成的输入电容的位置；
计算模块，用于根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
本申请实施例提供一种如上述结构的触控输入装置，还包括设置在所述触控输入装置上的倾角传感器，以确定所述触控输入装置的倾斜数据。
本申请实施例提供一种触控屏，包括：
感测模块，用于检测触控输入装置上的感应电极与触控屏所形成的输入电容的位置，所述触控输入装置用于在所述触控屏上输入信息；
计算模块，用于根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
本申请实施例提供一种触控输入系统，所述系统包括上述的触控输入装置以及对应的触控屏，所述触控屏根据所述触控输入装置发送的方位角和倾斜数据确定所述触控输入装置的姿态；或者，所述系统包括上述的触控屏以及对应的触控输入装置，所述触控屏接收所述触控输入装置发送的倾斜数据，并根据所述感应电容的电容值计算所述触控输入装置的方位角，以根据所述触控输入装置的方位角和倾斜数据确定所述触控输入装置的姿态。
由以上技术方案可见，本申请实施例利用设置在触控输入装置上的感应电极确定所述触控输入装置的方位角，以及利用设置在触控输入装置上的倾角传感器获得所述倾斜数据。所述触控屏根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。本申请无需再所述触控输入装置上设置两个感应电极，仅通过一感应电极和倾角传感器即可获得所述触控输入装置的姿态。本申请可缩减触控输入装置的成本和体积，简化设计难度。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其它的附图。
图1是示例性触控输入装置的使用示意图；
图2是本申请一种确定触控输入装置方位角的方法的流程图；
图3a至图3b是本申请触控输入装置与触控屏形成耦合电容的示意图；
图4本申请一种确定触控输入装置方位角的方法的步骤T102的一些实施例的示意图；
图5是本申请一种确定触控输入装置姿态的方法的流程图；
图6是本申请计算触控输入装置姿态的球坐标示意图；
图7a至图7b是本申请触控输入装置的一些实施例的硬件示意图；
图7c是本申请触控输入装置或者触控屏一些实施例的结构示意图；
图8a、8b、8c是本申请触控输入装置的另一些实施例的结构示意图；
图9a至图9b是本申请触控输入装置的再一些实施例的结构示意图。
具体实施方式
本申请实施例利用设置在触控输入装置上的感应电极确定所述触控输入装置的方位角，以及利用设置在触控输入装置上的倾角传感器获得所述倾斜数据。所述触控屏根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。本申请无需再所述触控输入装置上设置两个感应电极，仅通过一感应电极和倾角传感器即可获得所述触控输入装置的姿态。本申请缩减了触控输入装置的成本和体积，简化设计难度。
当然，实施本申请实施例的任一技术方案必不一定需要同时达到以上的所有优点。
为了使本领域的人员更好地理解本申请实施例中的技术方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请实施例一部分实施例，而不是全部的实施例。基于本申请实施例中的实施例，本领域普通技术人员所获得的所有其它实施例，都应当属于本申请实施例保护的范围。
下面结合本申请实施例附图进一步说明本申请实施例具体实现。
在示例性实施例的以下描述，参考由其所附的附图，其中通过图解方式示出的特定实施例可被实践。它要理解的是，其它实施例可以使用和结构的改变可以由不脱离各种实施例的范围。
本申请所述触控输入装置示例性的可为触控笔，其它的触控输入装置和/或指示设备可用于本申请各种实施例。
本申请所述具有电容敏感表面的面板示例性的可为触控屏，其它具有电容敏感表面，可感测物体触控或悬停的面板可用于本申请各种实施例。
图1示出示例性使用的触控笔11与触控屏12的多个实施例。在所述实施例中，触控屏12的行电极阵列121与列电极阵列122垂直交错形成感应单元123来检测触控笔11的姿态。
参见图2，本申请提供一种确定触控输入装置方位角的方法，包括：
T101、检测所述触控输入装置上的感应电极与触控屏所形成的输入电容的位置。
具体地，所述触控输入装置上的感应电极接近所述触控屏的感应单元，从而形成输入电容，并检测所述输入电容的位置。
T102、根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容值计算所述触控输入装置的方位角。
本申请检测所述感应电极所形成的输入电容的位置，进一步检测所述输入电容周围所形成的感应电容的电容值。
所述步骤T102具体为：根据所述触控屏的行电极和列电极建立直角坐标系，选取所述输入电容周围至少四个节点处的感应电容的电容值进行计算，获得所述触控输入装置的方位角。
参见图3a(电容敏感表面的正视图)和图3b(电容敏感表面的俯视图)，检测所述触控输入装置32感应电极与触控屏31所形成输入电容的位置A。获得所述感应电极在所述输入电容的位置A周围的感应单元S13、S23、S33、S12、S32、S11、S21、S31的感应电容的电容值(即，耦合电容的电容值)。
本申请选择至少四个节点的感应电容的电容值进行计算，利用两两差值的计算方式，获得所述触控输入装置的方位角。
所述触控屏建立直角坐标系以实现二维坐标计算，选择与所述触控屏的行电极平行的轴作为X轴，选择与所述触控屏的列电极平行的轴作为Y轴。 所选择的节点数量越多，得到的数据量就越多，最终得到的方位角精度也越高，但算法也越复杂。
参见图4，所述步骤T102包括：
T112、将所述直角坐标系的X轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系的X轴负半轴上的至少两个节点的感应电容的电容值的差值作为第一差值。
T122、将所述直角坐标系Y轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系Y轴负半轴上的至少两个节点的感应电容的电容值的差值作为第二差值。
T132、计算所述第二差值与所述第一差值比值的反正切函数，得到所述触控输入装置的方位角。
例如，实际的方位角θ＝0°。而通过T112至T132的仿真函数模型，根据所述电容敏感表面的行电极和列电极建立直角坐标系，选取至少四个节点的感应电容值进行计算，获得所述触控输入装置的方位角的数值为-1.5°。因此，通过T112至T132的仿真函数模型获得的方位角接近实际的方位角。在未知方位角时，可采用T112至T132的仿真函数模型计算所述方位角。
具体计算公式为下述公式(1)：
Figure PCTCN2016108221-appb-000001
例如，实际的方位角θ＝45°。而通过T112至T132的仿真函数模型，根据所述电容敏感表面的行电极和列电极建立直角坐标系，选取至少四个节点的感应电容值进行计算，获得所述触控输入装置的方位角的数值为46.6°。因此，通过T112至T132的仿真函数模型获得的方位角接近实际的方位角。在未知方位角时，可采用T112至T132的仿真函数模型计算所述方位角。
具体计算公式为下述公式(2)：
Figure PCTCN2016108221-appb-000002
参见图5，本申请另一实施例提供一种确定触控输入装置姿态的方法，包括：
T201、通过设置在所述触控输入装置上的感应电极确定所述触控输入装置的方位角。
在本申请一具体实现中，参见图1，所述步骤T201包括步骤T101至T102，故在此不再赘述。
T202、利用设置在所述触控输入装置上的倾角传感器确定所述触控输入装置的倾斜数据。
T203、根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。
参见图6，将触控输入装置置于球坐标系，对于触控输入装置上的某点P，其在球坐标系里的坐标表达为(r,φ,θ)，即触控输入装置的姿态可由三个因子来表达,分别是半径r,倾斜数据φ与方位角θ。通过所述方位角θ可以确定所述触控输入装置的书写的方向，通过所述倾斜数据φ确定所述触控输入装置书写的粗细，从而实现通过所述方位角和所述倾斜数据确定所述触控输入装置的姿态。
对应上述方法，参见图7a以及图7b，本申请还提供一种触控输入装置，所述触控输入装置的主体上设置感应电极71，所述感应电极71与触控屏形成输入电容。参见图7c，所述触控输入装置包括：
感测模块701，用于检测所述感应电极与触控屏所形成的输入电容的位置；
计算模块702，用于根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
所述计算模块702具体用于根据所述触控屏的行电极和列电极建立直角坐标系，选取所述输入电容周围至少四个节点处的感应电容的电容值进行计算，获得所述触控输入装置的方位角。
具体计算方式如前述步骤T112至T132所述，故在此不再赘述。
具体的，参见图8a、8b及图8c为示例性的作为触控输入装置的触控笔结构，所述触控笔7可以包括中心轴73和笔尖74，所述感应电极71位于所述触控笔的内部，且与所述触控屏接触。参见图8a，所述感应电极71为铅笔状，即具有锥状笔尖，且所述锥状笔尖与柱状笔体连接。参见图8b，所述 感应电极71作为整个触控笔7的锥状体。参见图8c，所述感应电极71为所述笔尖74的锥状体。
感应电极71可以是任何适当的导电材料，例如金属，涂料，油墨等。
所述感应电极71被绝缘层77包裹，且所述绝缘层77采用耐摩擦的材料，可保证多次写画不会发生磨损的同时提供适当的阻力，令书写更加接近真实的书写。
所述感应电极71的形状为非球状旋转体，例如柱状或者锥状。
在一些实施例中，所述笔尖74可更换，例如图8c。所述感应电极71通过电气连接线75连接电路板76，电路板76可容纳触控笔电路，例如，信号发射和接收元件，信号处理元件等。
所述触控笔触控或悬停在所述触控屏的上方。所述触控笔基于所述触控屏的位置进行操作。因此，检测触笔姿态可有助于在触控屏上进行操作。
本申请再一实施例还提供一种触控输入装置，参见图9a及图9b，其包括上述设置在所述触控输入装置7上的感应电极71外，还包括设置在所述触控输入装置上的倾角传感器72，用于确定所述触控输入装置7的倾斜数据。
具体的，所述倾角传感器72为线性加速度计。
本实施例触控输入装置利用感应电极71确定所述触控输入装置7的方位角，利用倾角传感器72确定所述触控输入装置7的倾斜数据。从而根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。
本申请再一实施例还提供一种触控屏，所述触控屏包括图7c中的感测模块701和计算模块702，即由触控屏来完成检测所述感应电极与触控屏所形成的输入电容的位置；根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
本申请再一实施例还提供一种触控输入系统，所述系统包括图7c对应实施例中所述的触控输入装置7以及对应的触控屏(图中未示出)，所述触控屏根据所述触控输入装置7发送的方位角和倾斜数据确定所述触控输入装置7的姿态；
或者，所述触控输入系统包括上一事实例所述的触控屏(图中未示出)以及对应的触控输入装置7；所述触控屏包括感测模块701和计算模块702， 可获得所述触控输入装置7的方位角，所述触控屏接收所述触控输入装置7发送的倾斜数据；所述触控屏可根据所述触控输入装置7的方位角和倾斜数据确定所述触控输入装置7的姿态。
本申请无需在所述触控输入装置上设置两个感应电极，仅通过一感应电极和倾角传感器即可获得所述触控输入装置的姿态。本申请可以缩减触控输入装置的成本和体积，简化设计难度。
本领域的技术人员应明白，本申请实施例的实施例可提供为方法、装置(设备)、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其它可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其它可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其它可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其它可编程数据处理设备上，使得在计算机或其它可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其它可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以， 所附权利要求意欲解释为包括优选实施例以及落入本申请实施例范围的所有变更和修改。显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请实施例权利要求及其等同技术的范围之内，则本申请实施例也意图包含这些改动和变型在内。

Claims (15)

  1. 一种确定触控输入装置方位角的方法，其特征在于，包括：
    检测所述触控输入装置上的感应电极与触控屏所形成的输入电容的位置；
    根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角具体为：
    根据所述触控屏的行电极和列电极建立直角坐标系，选取所述输入电容周围至少四个节点处的感应电容的电容值进行计算，获得所述触控输入装置的方位角。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述电容敏感表面的行电极和列电极建立直角坐标系，选取至少四个节点的感应电容值进行计算，获得所述触控输入装置的方位角包括：
    将所述直角坐标系的X轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系的X轴负半轴上的至少两个节点的感应电容的电容值的差值作为第一差值；
    将所述直角坐标系Y轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系Y轴负半轴上的至少两个节点的感应电容的电容值的差值作为第二差值；
    计算所述第二差值与所述第一差值的比值的反正切函数，得到所述触控输入装置的方位角。
  4. 一种确定触控输入装置姿态的方法，其特征在于，包括：
    通过如权利要求1-3中任一项所述的方法确定所述触控输入装置的方位角；
    利用设置在所述触控输入装置上的倾角传感器确定所述触控输入装置的倾斜数据；
    根据所述方位角和所述倾斜数据确定所述触控输入装置的姿态。
  5. 一种触控输入装置，其特征在于，所述触控输入装置的主体上设置感 应电极，所述感应电极与触控屏形成输入电容，所述触控输入装置包括：
    感测模块，用于检测所述感应电极与触控屏所形成的输入电容的位置；
    计算模块，用于根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
  6. 根据权利要求5所述的装置，其特征在于，所述计算模块具体用于根据所述触控屏的行电极和列电极建立直角坐标系，选取所述输入电容周围至少四个节点处的感应电容的电容值进行计算，获得所述触控输入装置的方位角。
  7. 根据权利要求6所述的装置，其特征在于，所述计算模块具体用于将所述直角坐标系X轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系X轴负半轴上的至少两个节点的感应电容的电容值的差值作为第一差值；
    将所述直角坐标系Y轴正半轴上的至少两个节点的感应电容的电容值与所述直角坐标系Y轴负半轴上的至少两个节点的感应电容的电容值的差值作为第二差值；
    计算所述第二差值与所述第一差值比值的反正切函数，得到所述触控输入装置的方位角。
  8. 根据权利要求5所述的装置，其特征在于，所述倾角传感器为线性加速度计。
  9. 根据权利要求5所述的装置，其特征在于，所述感应电极的形状为非球状旋转体。
  10. 根据权利要求5所述的装置，其特征在于，所述感应电极位于所述触控输入装置的内部，且与所述触控屏接触。
  11. 根据权利要求5所述的装置，其特征在于，所述感应电极位于所述触控输入装置与所述触控屏进行接触的部位。
  12. 根据权利要求10或11所述的装置，其特征在于，所述感应电极被绝缘层包裹。
  13. 一种触控输入装置，其特征在于，如权利要求5-12中任一项所述，且包括设置在所述触控输入装置上的倾角传感器，以确定所述触控输入装置 的倾斜数据。
  14. 一种触控屏，其特征在于，包括：
    感测模块，用于检测触控输入装置上的感应电极与触控屏所形成的输入电容的位置，所述触控输入装置用于在所述触控屏上输入信息；
    计算模块，用于根据所述输入电容的位置，获得所述输入电容周围所形成的感应电容的电容值，根据所述感应电容的电容值计算所述触控输入装置的方位角。
  15. 一种触控输入系统，所述系统包括权利要求13所述的触控输入装置以及对应的触控屏，所述触控屏根据所述触控输入装置发送的方位角和倾斜数据确定所述触控输入装置的姿态；或者，所述系统包括权利要求14所述的触控屏以及对应的触控输入装置，所述触控屏接收所述触控输入装置发送的倾斜数据，并根据所述感应电容的电容值计算所述触控输入装置的方位角，以根据所述触控输入装置的方位角和倾斜数据确定所述触控输入装置的姿态。
PCT/CN2016/108221 2016-12-01 2016-12-01 确定方位角或姿态的方法、触控输入装置、触控屏及系统 WO2018098771A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2016/108221 WO2018098771A1 (zh) 2016-12-01 2016-12-01 确定方位角或姿态的方法、触控输入装置、触控屏及系统
CN201680001593.0A CN107111387B (zh) 2016-12-01 2016-12-01 确定方位角或姿态的方法、触控输入装置、触控屏及系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/108221 WO2018098771A1 (zh) 2016-12-01 2016-12-01 确定方位角或姿态的方法、触控输入装置、触控屏及系统

Publications (1)

Publication Number Publication Date
WO2018098771A1 true WO2018098771A1 (zh) 2018-06-07

Family

ID=59676446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/108221 WO2018098771A1 (zh) 2016-12-01 2016-12-01 确定方位角或姿态的方法、触控输入装置、触控屏及系统

Country Status (2)

Country Link
CN (1) CN107111387B (zh)
WO (1) WO2018098771A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112286336A (zh) * 2020-10-21 2021-01-29 合肥联宝信息技术有限公司 电子设备的触控屏控制方法及电子设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108595029B (zh) * 2018-04-27 2021-11-16 广州视源电子科技股份有限公司 电容笔倾斜角度的确定方法、装置、设备和存储介质
JP7473832B1 (ja) 2022-12-01 2024-04-24 富士通クライアントコンピューティング株式会社 電子機器及びプログラム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104965609A (zh) * 2015-07-14 2015-10-07 武汉精测电子技术股份有限公司 一种主动式电容笔
CN105159459A (zh) * 2015-09-06 2015-12-16 东南大学 一种可用于移动终端的虚拟物体三维形状触觉再现方法
CN105511648A (zh) * 2016-01-04 2016-04-20 京东方科技集团股份有限公司 一种用于触控模组的主动笔、触控输入系统及其驱动方法
US20160154528A1 (en) * 2014-11-28 2016-06-02 Samsung Electronics Co., Ltd. Pen input device, method for correcting input coordinate thereof and electronic device for supporting the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105912147B (zh) * 2015-12-08 2020-05-12 汉王科技股份有限公司 主动电容笔及其倾角检测方法、电容式触控屏以及触控系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160154528A1 (en) * 2014-11-28 2016-06-02 Samsung Electronics Co., Ltd. Pen input device, method for correcting input coordinate thereof and electronic device for supporting the same
CN104965609A (zh) * 2015-07-14 2015-10-07 武汉精测电子技术股份有限公司 一种主动式电容笔
CN105159459A (zh) * 2015-09-06 2015-12-16 东南大学 一种可用于移动终端的虚拟物体三维形状触觉再现方法
CN105511648A (zh) * 2016-01-04 2016-04-20 京东方科技集团股份有限公司 一种用于触控模组的主动笔、触控输入系统及其驱动方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112286336A (zh) * 2020-10-21 2021-01-29 合肥联宝信息技术有限公司 电子设备的触控屏控制方法及电子设备
CN112286336B (zh) * 2020-10-21 2022-02-01 合肥联宝信息技术有限公司 电子设备的触控屏控制方法及电子设备

Also Published As

Publication number Publication date
CN107111387A (zh) 2017-08-29
CN107111387B (zh) 2020-06-23

Similar Documents

Publication Publication Date Title
TWI599922B (zh) 包含具有兩種以上自由度之使用者介面之電子設備，該使用者介面包含一觸碰敏感表面及非接觸式偵測構件
US9569045B2 (en) Stylus tilt and orientation estimation from touch sensor panel images
CN105992991B (zh) 低外形指点杆
TWI496041B (zh) 二維觸碰感測器
US9880655B2 (en) Method of disambiguating water from a finger touch on a touch sensor panel
US9239648B2 (en) Determining user handedness and orientation using a touchscreen device
US9639179B2 (en) Force-sensitive input device
CN107741824B (zh) 对可重定位触摸表面上的姿态朝向的检测
US20140210748A1 (en) Information processing apparatus, system and method
US20100149115A1 (en) Finger gesture recognition for touch sensing surface
US20100019780A1 (en) Multi-axis capacitive sensor
TWI502459B (zh) 電子裝置及其觸控操作方法
CN101965549A (zh) 触摸传感器装置及其指向坐标确定方法
CA2937956A1 (en) In-air ultrasound pen gestures
US20120249440A1 (en) method of identifying a multi-touch rotation gesture and device using the same
US9389727B2 (en) Method and system to determine when a device is being held
US20120249599A1 (en) Method of identifying a multi-touch scaling gesture and device using the same
US20150169123A1 (en) Touch sensor controller and method for driving the same
WO2018098771A1 (zh) 确定方位角或姿态的方法、触控输入装置、触控屏及系统
CN103324410A (zh) 用于检测触摸的方法和装置
TW201702814A (zh) 包括具有用以促進追描之厚度之電極的裝置
US20130249807A1 (en) Method and apparatus for three-dimensional image rotation on a touch screen
JP6255321B2 (ja) 情報処理装置とその指先操作識別方法並びにプログラム
US20120194454A1 (en) Finger tilt detection in touch surface-based input devices
US9395858B2 (en) Capacitive finger navigation device with hybrid mode and operating method thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16922990

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16922990

Country of ref document: EP

Kind code of ref document: A1