CN107111387B - Method for determining azimuth angle or attitude, touch input device, touch screen and system - Google Patents
Method for determining azimuth angle or attitude, touch input device, touch screen and system Download PDFInfo
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- CN107111387B CN107111387B CN201680001593.0A CN201680001593A CN107111387B CN 107111387 B CN107111387 B CN 107111387B CN 201680001593 A CN201680001593 A CN 201680001593A CN 107111387 B CN107111387 B CN 107111387B
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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
- G06F3/033—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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0442—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
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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
- G06F3/033—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
Abstract
A method for determining an azimuth or attitude, a touch input device, a touch screen and a system, the method comprising: detecting the position of an input capacitor formed by an induction electrode on the touch input device and the touch screen; obtaining a capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor, and calculating an azimuth angle of the touch input device according to the capacitance value of the induction capacitor; determining tilt data of the touch input device by using a tilt sensor arranged on the touch input device; determining a pose of the touch input device based on the azimuth and the tilt data. According to the touch input device, two induction electrodes are arranged on the touch input device, and the gesture of the touch input device can be obtained only through one induction electrode and the inclination angle sensor. The touch input device can reduce the cost and the volume of the touch input device and simplify the design difficulty.
Description
Technical Field
The present disclosure relates to the field of touch sensing technologies, and in particular, to a method, a touch input device, a touch screen and a system for determining an azimuth angle or an attitude of a touch input device.
Background
With the development of touch technology and mobile terminal technology, more and more mobile terminals adopt a touch mode to perform human-computer interaction. Touch screens adopted by current mobile terminals mainly comprise a capacitive touch screen and a resistive touch screen, wherein the capacitive touch screen is favored by more and more users due to good definition, light transmittance and touch feeling of the capacitive touch screen. The mobile terminal is currently most widely applied to mobile phones and tablet computers.
The capacitive touch screen can be directly operated by fingers, and can be operated by other touch input devices such as a touch pen instead of fingers. Other touch input devices such as a touch pen need to generate handwriting thickness effects according to different inclination angles of a pen body in order to achieve better user experience. In order to accurately know the thickness and direction of handwriting generated by other touch input devices such as a stylus on a capacitance sensitive surface, the gestures of other touch input devices such as a stylus need to be determined.
Therefore, how to reduce the cost and volume of the touch input device and simplify the design difficulty becomes a technical problem to be solved urgently in the prior art.
Disclosure of Invention
In view of the above, an objective of the present disclosure is to provide a method, a touch input device, a touch screen and a system for determining an azimuth angle or an attitude of a touch input device, so as to reduce the cost and the volume of the touch input device and simplify the design difficulty.
The embodiment of the application provides a method for determining an azimuth angle of a touch input device, which comprises the following steps:
detecting the position of an input capacitor formed by an induction electrode on the touch input device and a touch screen;
and obtaining the capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor, and calculating the azimuth angle of the touch input device according to the capacitance value of the induction capacitor.
The embodiment of the application provides a method for determining the gesture of a touch input device, which comprises the following steps:
determining the azimuth angle of the touch input device by the method;
determining tilt data of the touch input device using a tilt sensor disposed on the touch input device;
determining a pose of the touch input device based on the azimuth angle and the tilt data.
The embodiment of the application provides a touch input device, set up the induction electrode in touch input device's the main part, the induction electrode forms input capacitance with the touch-control screen, touch input device includes:
the sensing module is used for detecting the position of an input capacitor formed by the induction electrode and the touch screen;
and the calculation module is used for obtaining the capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor and calculating the azimuth angle of the touch input device according to the capacitance value of the induction capacitor.
The embodiment of the application provides a touch input device with the structure, which further comprises an inclination angle sensor arranged on the touch input device so as to determine the inclination data of the touch input device.
An embodiment of the present application provides a touch screen, including:
the touch control device comprises a sensing module, a control module and a display module, wherein the sensing module is used for detecting the position of an input capacitor formed by an induction electrode on a touch control input device and a touch control screen, and the touch control input device is used for inputting information on the touch control screen;
and the calculation module is used for obtaining the capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor and calculating the azimuth angle of the touch input device according to the capacitance value of the induction capacitor.
The embodiment of the application provides a touch input system, which comprises the touch input device and a corresponding touch screen, wherein the touch screen determines the posture of the touch input device according to azimuth angle and inclination data sent by the touch input device; or, the system includes the touch screen and a corresponding touch input device, where the touch screen receives tilt data sent by the touch input device, and calculates an azimuth angle of the touch input device according to a capacitance value of the sensing capacitor, so as to determine an attitude of the touch input device according to the azimuth angle and the tilt data of the touch input device.
According to the technical scheme, the azimuth angle of the touch input device is determined by the aid of the induction electrodes arranged on the touch input device, and the inclination data is obtained by the aid of the inclination sensor arranged on the touch input device. And the touch screen determines the posture of the touch input device according to the azimuth angle and the inclination data. According to the touch input device, two induction electrodes are arranged on the touch input device, and the gesture of the touch input device can be obtained only through one induction electrode and the inclination angle sensor. The touch input device can reduce the cost and the volume of the touch input device and simplify the design difficulty.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of the use of an exemplary touch input device;
FIG. 2 is a flowchart illustrating a method for determining an azimuth angle of a touch input device according to the present disclosure;
fig. 3a to 3b are schematic diagrams illustrating a coupling capacitor formed between a touch input device and a touch screen according to the present invention;
FIG. 4 is a schematic diagram of some embodiments of step T102 of a method of determining an azimuth angle of a touch input device according to the present application;
FIG. 5 is a flow chart of a method of determining a gesture of a touch input device according to the present application;
FIG. 6 is a schematic diagram of calculating spherical coordinates of a gesture of a touch input device according to the present application;
FIGS. 7 a-7 b are hardware schematic diagrams of some embodiments of a touch input device of the present application;
FIG. 7c is a schematic structural diagram of a touch input device or a touch screen according to some embodiments of the present disclosure;
8a, 8b, and 8c are schematic structural diagrams of other embodiments of the touch input device of the present application;
fig. 9a to 9b are schematic structural diagrams of still other embodiments of the touch input device of the present application.
Detailed Description
The method and the device for detecting the inclination angle of the touch input device utilize the induction electrodes arranged on the touch input device to determine the azimuth angle of the touch input device, and utilize the inclination angle sensor arranged on the touch input device to obtain the inclination data. And the touch screen determines the posture of the touch input device according to the azimuth angle and the inclination data. According to the touch input device, two induction electrodes are arranged on the touch input device, and the gesture of the touch input device can be obtained only through one induction electrode and the inclination angle sensor. The touch input device has the advantages that the cost and the volume of the touch input device are reduced, and the design difficulty is simplified.
Of course, it is not necessary for any particular embodiment of the present application to achieve all of the above advantages at the same time.
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.
In the following description of the exemplary embodiments, reference is made to the accompanying drawings, in which is shown by way of illustration specific embodiments which may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the various embodiments.
The touch input device described herein may be illustratively a stylus, and other touch input devices and/or pointing devices may be used in various embodiments of the present disclosure.
The panel with the capacitive sensitive surface can be a touch screen, and other panels with capacitive sensitive surfaces that can sense touch or hover of an object can be used in various embodiments of the present application.
Fig. 1 shows various embodiments of exemplary use of a stylus 11 and a touch screen 12. In the embodiment, the row electrode array 121 and the column electrode array 122 of the touch screen 12 are vertically crossed to form a sensing unit 123 for detecting the gesture of the stylus pen 11.
Referring to fig. 2, the present application provides a method for determining an azimuth angle of a touch input device, including:
and T101, detecting the position of an input capacitor formed by the induction electrode on the touch input device and the touch screen.
Specifically, the sensing electrode on the touch input device is close to the sensing unit of the touch screen, so that an input capacitor is formed, and the position of the input capacitor is detected.
And T102, obtaining a capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor, and calculating an azimuth angle of the touch input device according to the induction capacitance value.
The position of the input capacitance that the sensing electrode formed is detected to this application, further detects the capacitance value of the sensing capacitance that forms around the input capacitance.
The step T102 is specifically: and establishing a rectangular coordinate system according to the row electrodes and the column electrodes of the touch screen, and selecting capacitance values of the induction capacitors at least four nodes around the input capacitor for calculation to obtain an azimuth angle of the touch input device.
Referring to fig. 3a (front view of the capacitance-sensitive surface) and fig. 3b (top view of the capacitance-sensitive surface), the position a of the input capacitance formed by the sensing electrode of the touch input device 32 and the touch screen 31 is detected. The capacitance values of the sensing capacitances (i.e., the capacitance values of the coupling capacitances) of the sensing cells S13, S23, S33, S12, S32, S11, S21, S31 around the position a of the input capacitance of the sensing electrode are obtained.
The capacitance values of the induction capacitors of at least four nodes are selected for calculation, and the azimuth angle of the touch input device is obtained by using a calculation mode of two difference values.
The touch screen is provided with a rectangular coordinate system to realize two-dimensional coordinate calculation, an axis parallel to row electrodes of the touch screen is selected as an X axis, and an axis parallel to column electrodes of the touch screen is selected as a Y axis. The more nodes are selected, the more data quantity is obtained, the higher the azimuth angle precision is finally obtained, but the more complex the algorithm is.
Referring to fig. 4, the step T102 includes:
and T112, taking the difference value between the capacitance values of the inductive capacitors of the at least two nodes on the positive X-axis half shaft of the rectangular coordinate system and the capacitance values of the inductive capacitors of the at least two nodes on the negative X-axis half shaft of the rectangular coordinate system as a first difference value.
And T122, taking the difference value between the capacitance values of the inductive capacitors of the at least two nodes on the positive half shaft of the Y axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of the at least two nodes on the negative half shaft of the Y axis of the rectangular coordinate system as a second difference value.
And T132, calculating an arc tangent function of the ratio of the second difference value to the first difference value to obtain the azimuth angle of the touch input device.
For example, the actual azimuth angle θ is 0 °. And establishing a rectangular coordinate system according to the row electrodes and the column electrodes of the capacitance sensitive surface through a simulation function model from T112 to T132, selecting induction capacitance values of at least four nodes for calculation, and obtaining a value of the azimuth angle of the touch input device, wherein the value is-1.5 degrees. Therefore, the azimuth angle obtained by the simulation function model of T112 to T132 is close to the actual azimuth angle. When the azimuth is unknown, the azimuth can be calculated using a simulation function model of T112 to T132.
The specific calculation formula is the following formula (1):
for example, the actual azimuth angle θ is 45 °. And establishing a rectangular coordinate system according to the row electrodes and the column electrodes of the capacitance sensitive surface through a simulation function model from T112 to T132, selecting induction capacitance values of at least four nodes for calculation, and obtaining the value of the azimuth angle of the touch input device to be 46.6 degrees. Therefore, the azimuth angle obtained by the simulation function model of T112 to T132 is close to the actual azimuth angle. When the azimuth is unknown, the azimuth can be calculated using a simulation function model of T112 to T132.
The specific calculation formula is the following formula (2):
referring to fig. 5, another embodiment of the present application provides a method for determining a gesture of a touch input device, including:
and T201, determining the azimuth angle of the touch input device through an induction electrode arranged on the touch input device.
In a specific implementation of the present application, referring to fig. 1, the step T201 includes steps T101 to T102, which are not described herein again.
And T202, determining the inclination data of the touch input device by utilizing an inclination angle sensor arranged on the touch input device.
And T203, determining the posture of the touch input device according to the azimuth angle and the inclination data.
Referring to fig. 6, the touch input device is placed in a spherical coordinate system, and for a certain point P on the touch input device, its coordinates in the spherical coordinate system are expressed as (r, Φ, θ), i.e., the posture of the touch input device can be expressed by three factors, i.e., radius r, tilt data Φ and azimuth θ. The writing direction of the touch input device can be determined through the azimuth angle theta, and the writing thickness of the touch input device is determined through the inclination data phi, so that the gesture of the touch input device is determined through the azimuth angle and the inclination data.
In response to the above method, referring to fig. 7a and fig. 7b, the present application further provides a touch input device, wherein a main body of the touch input device is provided with a sensing electrode 71, and the sensing electrode 71 and the touch screen form an input capacitance. Referring to fig. 7c, the touch input device includes:
a sensing module 701, configured to detect a position of an input capacitor formed by the sensing electrode and the touch screen;
a calculating module 702, configured to obtain a capacitance value of an inductive capacitor formed around the input capacitor according to the position of the input capacitor, and calculate an azimuth angle of the touch input device according to the capacitance value of the inductive capacitor.
The calculation module 702 is specifically configured to establish a rectangular coordinate system according to the row electrodes and the column electrodes of the touch screen, and select capacitance values of the sensing capacitors at least four nodes around the input capacitor to perform calculation, so as to obtain an azimuth angle of the touch input device.
The specific calculation method is as described in the foregoing steps T112 to T132, and therefore, the detailed description is omitted here.
Specifically, referring to fig. 8a, 8b and 8c, which are exemplary structures of a stylus pen as a touch input device, the stylus pen 7 may include a central shaft 73 and a pen tip 74, and the sensing electrode 71 is located inside the stylus pen and contacts with the touch screen. Referring to fig. 8a, the sensing electrode 71 is pencil-shaped, i.e. has a cone-shaped tip, and the cone-shaped tip is connected with the cylindrical pen body. Referring to fig. 8b, the sensing electrode 71 acts as a cone of the entire stylus pen 7. Referring to fig. 8c, the sensing electrode 71 is a cone of the pen tip 74.
The sensing electrode 71 may be any suitable conductive material, such as metal, paint, ink, and the like.
The induction electrode 71 is wrapped by an insulating layer 77, and the insulating layer 77 is made of a friction-resistant material, so that the abrasion of writing and drawing for many times can be avoided, and meanwhile, appropriate resistance is provided, and the writing is closer to the real writing.
The sensing electrode 71 is shaped as a non-spherical rotator, such as a column or a cone.
In some embodiments, the tip 74 is replaceable, such as in fig. 8 c. The sensing electrode 71 is connected to a circuit board 76 by an electrical connection 75, and the circuit board 76 can accommodate stylus circuitry, e.g., signal transmitting and receiving elements, signal processing elements, etc.
The stylus touches or hovers over the touchscreen. The stylus operates based on the position of the touch screen. Thus, detecting stylus gestures can facilitate operations on the touch screen.
A further embodiment of the present application further provides a touch input device, referring to fig. 9a and 9b, which includes the above-mentioned sensing electrode 71 disposed on the touch input device 7, and further includes a tilt sensor 72 disposed on the touch input device for determining tilt data of the touch input device 7.
Specifically, the tilt sensor 72 is a linear accelerometer.
The touch input device of the present embodiment determines the azimuth angle 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 a pose of the touch input device based on the azimuth angle and the tilt data.
Yet another embodiment of the present application further provides a touch screen, where the touch screen includes a sensing module 701 and a calculating module 702 in fig. 7c, that is, the touch screen detects the position of an input capacitor formed by the sensing electrode and the touch screen; and obtaining the capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor, and calculating the azimuth angle of the touch input device according to the capacitance value of the induction capacitor.
Yet another embodiment of the present application further provides a touch input system, which includes the touch input device 7 and a corresponding touch screen (not shown in the figure) in the embodiment corresponding to fig. 7c, where the touch screen determines the posture of the touch input device 7 according to the azimuth and the tilt data sent by the touch input device 7;
alternatively, the touch input system includes the touch screen (not shown in the figure) and the corresponding touch input device 7 in the previous example; the touch screen comprises a sensing module 701 and a calculating module 702, the azimuth angle of the touch input device 7 can be obtained, and the touch screen receives inclination data sent by the touch input device 7; the touch screen may determine the attitude of the touch input device 7 from the azimuth and tilt data of the touch input device 7.
According to the touch input device, two induction electrodes are not required to be arranged on the touch input device, and the gesture of the touch input device can be obtained only through one induction electrode and the inclination angle sensor. The touch input device can reduce the cost and the volume of the touch input device and simplify the design difficulty.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus (device), or computer program product. Accordingly, 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 aspects. Furthermore, embodiments of the present application may 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, and the like) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the embodiments of the present application and their equivalents, the embodiments of the present application are intended to include such modifications and variations as well.
Claims (11)
1. A method for determining an azimuth angle of a touch input device, comprising:
detecting the position of an input capacitor formed by an induction electrode on the touch input device and the touch screen;
obtaining the capacitance value of an induction capacitor formed around the input capacitor according to the position of the input capacitor;
establishing a rectangular coordinate system according to row electrodes and column electrodes of the touch screen, and taking the difference value between the capacitance values of the inductive capacitors of at least two nodes on the positive half shaft of the X axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of at least two nodes on the negative half shaft of the X axis of the rectangular coordinate system as a first difference value;
taking the difference value between the capacitance values of the inductive capacitors of the at least two nodes on the positive half shaft of the Y axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of the at least two nodes on the negative half shaft of the Y axis of the rectangular coordinate system as a second difference value;
and calculating an arc tangent function of the ratio of the second difference value to the first difference value to obtain the azimuth angle of the touch input device.
2. A method of determining a gesture of a touch input device, comprising:
determining an azimuth angle of the touch input device by the method as recited in claim 1;
determining tilt data of the touch input device using a tilt sensor disposed on the touch input device;
determining a pose of the touch input device based on the azimuth angle and the tilt data.
3. A touch input device, wherein a sensing electrode is disposed on a main body of the touch input device, the sensing electrode and a touch screen form an input capacitance, and the touch input device comprises:
the sensing module is used for detecting the position of an input capacitor formed by the induction electrode and the touch screen;
the calculation module is used for obtaining the capacitance value of the induction capacitor formed around the input capacitor according to the position of the input capacitor; establishing a rectangular coordinate system according to row electrodes and column electrodes of the touch screen, and taking the difference value between the capacitance values of the inductive capacitors of at least two nodes on the positive half shaft of the X axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of at least two nodes on the negative half shaft of the X axis of the rectangular coordinate system as a first difference value; taking the difference value between the capacitance values of the inductive capacitors of the at least two nodes on the positive half shaft of the Y axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of the at least two nodes on the negative half shaft of the Y axis of the rectangular coordinate system as a second difference value; and calculating an arc tangent function of the ratio of the second difference value to the first difference value to obtain the azimuth angle of the touch input device.
4. The device of claim 3, wherein the touch input device comprises a tilt sensor, and wherein the tilt sensor is a linear accelerometer.
5. The device of claim 3, wherein the sensing electrode is shaped as a non-spherical body of revolution.
6. The device of claim 3, wherein the sensing electrode is located inside the touch input device and contacts the touch screen.
7. The device of claim 3, wherein the sensing electrode is located at a portion where the touch input device makes contact with the touch screen.
8. The apparatus of claim 6 or 7, wherein the sensing electrode is surrounded by an insulating layer.
9. The device of claim 3 or any of claims 5-7, wherein a tilt sensor is disposed on the touch input device to determine tilt data of the touch input device.
10. A touch screen, comprising:
the sensing module is used for detecting the position of an input capacitor formed by an induction electrode on the touch input device and the touch screen, and the touch input device is used for inputting information on the touch screen;
the calculation module is used for obtaining the capacitance value of the induction capacitor formed around the input capacitor according to the position of the input capacitor;
establishing a rectangular coordinate system according to row electrodes and column electrodes of the touch screen, and taking the difference value between the capacitance values of the inductive capacitors of at least two nodes on the X-axis positive half shaft of the rectangular coordinate system and the capacitance values of the inductive capacitors of at least two nodes on the X-axis negative half shaft of the rectangular coordinate system as a first difference value; taking the difference value between the capacitance values of the inductive capacitors of the at least two nodes on the positive half shaft of the Y axis of the rectangular coordinate system and the capacitance values of the inductive capacitors of the at least two nodes on the negative half shaft of the Y axis of the rectangular coordinate system as a second difference value; and calculating an arc tangent function of the ratio of the second difference value to the first difference value to obtain the azimuth angle of the touch input device.
11. A touch input system comprising the touch input device of claim 9 and a corresponding touch screen, the touch screen determining the attitude of the touch input device from the azimuth and tilt data sent by the touch input device; alternatively, the system includes the touch screen of claim 10 and a corresponding touch input device, and the touch screen receives the tilt data sent by the touch input device and calculates the azimuth angle of the touch input device according to the capacitance value of the sensing capacitor, so as to determine the posture of the touch input device according to the azimuth angle and the tilt data of the touch input device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/108221 WO2018098771A1 (en) | 2016-12-01 | 2016-12-01 | Method for determining azimuthal angle or posture, touch input device, touch panel, and system |
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| CN107111387A CN107111387A (en) | 2017-08-29 |
| CN107111387B true CN107111387B (en) | 2020-06-23 |
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| CN108595029B (en) * | 2018-04-27 | 2021-11-16 | 广州视源电子科技股份有限公司 | Method, device and equipment for determining inclination angle of capacitive pen and storage medium |
| CN112286336B (en) * | 2020-10-21 | 2022-02-01 | 合肥联宝信息技术有限公司 | Touch screen control method of electronic equipment and electronic equipment |
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| CN105511648A (en) * | 2016-01-04 | 2016-04-20 | 京东方科技集团股份有限公司 | Active pen for touch module, touch input system and driving method of active pen |
| CN105955515A (en) * | 2015-12-08 | 2016-09-21 | 汉王科技股份有限公司 | Active capacitance pen, gesture detection method thereof, capacitance type touch screen and touch system |
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| CN104965609B (en) * | 2015-07-14 | 2018-05-04 | 武汉精测电子集团股份有限公司 | A kind of active capacitance pen |
| CN105159459B (en) * | 2015-09-06 | 2018-09-14 | 东南大学 | A kind of dummy object 3D shape tactile sense reproduction method can be used for mobile terminal |
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| CN105955515A (en) * | 2015-12-08 | 2016-09-21 | 汉王科技股份有限公司 | Active capacitance pen, gesture detection method thereof, capacitance type touch screen and touch system |
| CN105511648A (en) * | 2016-01-04 | 2016-04-20 | 京东方科技集团股份有限公司 | Active pen for touch module, touch input system and driving method of active pen |
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