TW201430627A - System and method for identifying operation of stylus - Google Patents

Abstract

A system for identifying operation of a stylus. The system includes a receiving module, a first obtaining module, a second obtaining module, a calculating module, a transforming module, and an executing module. The receiving module receives a communication signal between a stylus and each receiver of an electronic device. The first obtaining module receives a distance between a top of the stylus and each receiver. The second obtaining module obtains a system time of the electronic device when the stylus touches a screen of the electronic device. The calculating module calculates a coordinate of the top of the stylus according to the distance. The transforming module transforms the coordinate of the top of the stylus to a coordinate of a touch point that the top touches the screen. The executing module activates operation according to the coordinate of the touch point and the system time of the electronic device when the top touches the screen.

Description

Stylus operation recognition system and method

The invention relates to a stylus control system and method for an electronic device, and more particularly to a stylus operation recognition system and method.

At present, most of the electronic devices are equipped with a touch screen, and the touch screen of the electronic device is also set larger and larger, but the cost of the larger and larger touch screen is also increased. In comparison, the cost of the non-touch screen is much smaller. However, the non-touch screen does not recognize the operation of the stylus.

In view of the above, it is necessary to provide a stylus operation recognition system and method, which can realize the operation of the stylus on a non-touch screen.

A stylus operation recognition system, the system includes: a receiving module, configured to receive a signal that the stylus is turned on to communicate with each receiver of the electronic device; and the first acquisition module is configured to be a stylus tip When the screen of the electronic device is touched, the distance between the tip of the stylus and each receiver is obtained; and the second acquiring module is configured to acquire the electronic device when the tip of the stylus touches the screen a system module for calculating a coordinate value of a tip of the stylus according to a distance between a tip of the stylus and each receiver; and a conversion module for calculating the above Converting a coordinate value of the tip of the stylus pen to a coordinate value of a contact point of the stylus pen touched to the screen; and executing a module for contacting the tip of the contact point on the screen according to the tip of the stylus pen The value and the system time each time the stylus tip touches the screen to simulate the corresponding event action.

A stylus operation recognition method, the method comprising the steps of: receiving a step of receiving a signal that the stylus is turned on to communicate with each receiver of the electronic device; and the first obtaining step, when the stylus tip touches the electronic When the screen of the device is used, the distance between the tip of the stylus and each receiver is obtained; and the second obtaining step is to obtain the system time of the electronic device when the tip of the stylus touches the screen; Calculating a coordinate value of a tip of the stylus according to a distance between a tip of the stylus and each receiver; and converting, converting the calculated coordinate value of the tip of the stylus to the touch The pointer value of the touch pen tip contacting the touch point on the screen; and performing steps according to the coordinate value of the touch point of the stylus contacting the touch point on the screen and the system time of the touch pen tip contacting the screen each time, To simulate the corresponding event action.

Compared with the prior art, the stylus operation recognition system and method can be used on a non-touch screen, so that the electronic device accurately captures the action event of the stylus.

FIG. 1 is a diagram showing an operating environment of a preferred embodiment of the stylus operation recognition system of the present invention. The stylus operation recognition system 10 runs in the electronic device 1, and the electronic device 1 can be a mobile phone, a tablet computer or the like. The electronic device 1 includes a screen 11 and a plurality of receivers 12. The screen 11 can be a non-touch screen. The number of the plurality of receivers 12 is preferably not less than three. Each of the receivers 12 is communicatively coupled to the stylus pen 2 by wireless transmission, including but not limited to Bluetooth, infrared, and the like. When the stylus 2 slides or clicks on the screen 11, the data is transmitted with the receiver 12. A pressure sensor can be mounted on the stylus 2, and when the tip of the stylus 2 touches the screen 11, the pressure sensor senses the pressure of the touch, and then the wireless of the stylus 2 is turned on. The transmission function can also set a switch on the stylus 2, and the switch controls the opening and closing of the wireless transmission function of the stylus pen 2.

As shown in FIG. 2, it is a functional module diagram of the stylus operation recognition system 10 of FIG. The stylus operation recognition system 10 includes a receiving module 100, a control module 101, a first acquisition module 102, a second acquisition module 103, a calculation module 104, a conversion module 105, and an execution module 106. The module is a software program segment having a specific function, and the software is stored in a computer readable storage medium or other storage device, and can be executed by a computer or other computing device including a processor, thereby completing the stylus 2 of the present invention. The workflow of operations on the screen 11 of the electronic device 1.

The receiving module 100 is configured to receive a signal that the stylus 2 turns on the communication function. The user can touch the stylus pen 2 to activate the communication function of the stylus pen 2. After the communication function is turned on, the stylus pen 2 can be performed by contacting the screen 11 and each receiver 12. Wireless communication.

The control module 101 is configured to control each receiver 12 to receive an identifier (ID) of the stylus 2 sent by the stylus pen 2. Each stylus 2 has a unique identification code. When the stylus 2 touches the screen 11, the receiver 12 can acquire the identification code of each stylus 2.

The first obtaining module 102 is configured to acquire the distance between the pen tip of the stylus pen 2 and each receiver 12 when the pen tip of the stylus pen 2 touches the screen 11 . Since the stylus 2 and each of the receivers 12 are communicated by wireless transmission, the distance between the stylus pen 2 and each of the receivers 12 can be obtained according to the wireless transmission protocol.

The second acquisition module 103 is configured to acquire the system time of the electronic device 1 when the pen tip of the stylus pen 2 touches the screen 11 .

The calculation module 104 is configured to calculate a coordinate value of the nib of the stylus pen according to the distance between the nib of the stylus pen 2 and each receiver 12 . As shown in FIG. 4, the three receivers 12 are respectively A, B, and C. The contact point of the tip of the stylus pen 2 contacting the screen 11 is D, and the distance between A and B is Lab, between A and C. The distance is Lac, the distance between B and C is Lbc, the length of the Lab, Lbc, Lac is determined by the position at which each receiver 12 is mounted, and the position of each receiver 12 is also known. The first acquisition module 102 acquires the distance between the contact point D and each receiver 12, which are respectively: La, Lb, and Lc. Points A, B, C, and D form a spatial tetrahedron. Knowing the coordinate values of the three vertices and the side length of each side, the coordinate value of the other vertex can be calculated, that is, the nib of the stylus 2 position.

The conversion module 105 is configured to convert the coordinate value of the pen tip of the stylus 2 calculated above into a coordinate value of the contact point of the pen tip contacting the screen 11. In this embodiment, the conversion module 105 converts the coordinate value of the pen tip into a two-dimensional coordinate value with the screen 11 as a reference surface, and the converted two-dimensional coordinate value is the coordinate value of the contact point on the screen 11. .

The execution module 106 is configured to simulate a corresponding event operation according to the coordinate value of the touch point of the stylus pen 2 contacting the contact point on the screen 11 and the system time when the pen tip of the stylus pen 2 contacts the screen 11. The event action includes clicking, double clicking, dragging, and the like. When a plurality of stylus pens 2 touch the screen 11, the execution module 106 can determine that the touch is multi-touch. For example, if the pen tip of the stylus pen touches the screen 11 every time interval is less than 1 s, it can be determined that the action of the stylus pen 2 on the screen 11 is continuous. That is, the sliding operation is performed on the screen 11.

As shown in FIG. 3, it is a flowchart of a preferred embodiment of the stylus operation recognition method of the present invention.

In step S30, the receiving module 100 receives the signal that the stylus pen 2 turns on the communication function. The user can touch the stylus 2 to the screen 11 to activate the communication function of the stylus 2.

In step S31, the control module 101 controls each receiver 12 to receive the identifier (ID) of the stylus 2 sent by the stylus pen 2. Each stylus 2 has a unique identification code. When the stylus 2 touches the screen 11, the receiver 12 can acquire the identification code of each stylus 2.

In step S32, when the tip of the stylus pen 2 touches the screen 11, the first obtaining module 102 acquires the distance between the pen tip of the stylus pen 2 and each receiver 12. Since the stylus 2 and each of the receivers 12 are communicated by wireless transmission, the distance between the stylus pen 2 and each of the receivers 12 can be obtained according to the wireless transmission protocol.

In step S33, the second obtaining module 103 acquires the system time of the electronic device 1 when the pen tip of the stylus pen 2 touches the screen 11.

In step S34, the calculation module 104 calculates the coordinate value of the pen tip of the stylus pen according to the distance between the pen tip of the stylus pen 2 and each receiver 12. As shown in FIG. 4, the three receivers 12 are respectively A, B, and C. The contact point of the tip of the stylus pen 2 contacting the screen 11 is D, and the distance between A and B is Lab, between A and C. The distance is Lac, the distance between B and C is Lbc, the length of the Lab, Lbc, Lac is determined by the position at which each receiver 12 is mounted, and the position of each receiver 12 is also known. The first acquisition module 102 acquires the distance between the contact point D and each receiver 12, which are respectively: La, Lb, and Lc. Points A, B, C, and D constitute a spatial tetrahedron. Knowing the coordinate values of the three vertices and the side length of each side, the coordinate value of the other vertex can be calculated, that is, the position of the nib of the stylus 2 .

In step S35, the conversion module 105 converts the calculated coordinate value of the pen tip of the stylus pen 2 into a coordinate value of the contact point of the pen tip contacting the screen 11. In this embodiment, the conversion module 105 converts the coordinate value of the pen tip into a two-dimensional coordinate value with the screen 11 as a reference surface, and the converted two-dimensional coordinate value is the coordinate value of the contact point on the screen 11. .

In step S36, the execution module 106 simulates a corresponding event operation according to the coordinate value of the touch point of the stylus pen 2 contacting the contact point on the screen 11, and the system time when the pen tip of the stylus pen 2 contacts the screen 11. The event action includes clicking, double clicking, dragging, and the like. When a plurality of stylus pens 2 touch the screen 11, the execution module 106 can determine that the touch is multi-touch. For example, if the pen tip of the stylus pen touches the screen 11 every time interval is less than 1 s, it can be determined that the action of the stylus pen 2 on the screen 11 is continuous. That is, the sliding operation is performed on the screen 11.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting, although the present invention will be described in detail with reference to the preferred embodiments. Modifications or equivalents are made without departing from the spirit and scope of the invention.

1. . . Electronic device

10. . . Stylus operation recognition system

11. . . Screen

12. . . receiver

2. . . Stylus

100. . . Receiving module

101. . . Control module

102. . . First acquisition module

103. . . Second acquisition module

104. . . Computing module

105. . . Conversion module

106. . . Execution module

1 is a diagram showing the operating environment of a preferred embodiment of the stylus operation recognition system of the present invention.

2 is a functional block diagram of the stylus operation recognition system 10 of FIG.

3 is a flow chart showing the operation of a preferred embodiment of the stylus operation recognition method of the present invention.

4 is a schematic diagram showing the intensity of the screen display of the electronic device of the present invention being pressed.

10. . . Stylus operation recognition system

100. . . Receiving module

101. . . Control module

102. . . First acquisition module

103. . . Second acquisition module

104. . . Computing module

105. . . Conversion module

106. . . Execution module

Claims (10)

A stylus operation recognition system, the system comprising:
a receiving module, configured to receive a signal that the stylus is turned on to communicate with each receiver of the electronic device;
a first acquiring module, configured to acquire a distance between a tip of the stylus and each receiver when the tip of the stylus touches the screen of the electronic device;
a second acquiring module, configured to acquire a system time of the electronic device when the tip of the stylus touches the screen;
a calculation module, configured to calculate a coordinate value of a tip of the stylus according to a distance between a tip of the stylus and each receiver;
a conversion module, configured to convert the coordinate value of the stylus pen tip calculated above to a coordinate value of a contact point of the stylus pen tip contacting the screen; and an execution module for using the touch function The tip of the pen touches the coordinate value of the touch point on the screen and the system time each time the tip of the stylus touches the screen to simulate the corresponding event operation. The stylus operation recognition system of claim 1, wherein the system further comprises: a control module, configured to control each receiver to receive the identification code of the stylus sent by the stylus. The stylus operation recognition system of claim 2, wherein the execution module recognizes multi-touch according to an identification code of each stylus. The stylus operation recognition system of claim 1, wherein the event operation comprises: clicking, double clicking, and dragging. The stylus operation recognition system according to claim 1, wherein the number of the receivers is not less than three. A stylus operation recognition method, the method comprising the following steps:
Receiving step of receiving a signal that the stylus is turned on to communicate with each receiver of the electronic device;
a first obtaining step of obtaining a distance between a tip of the stylus and each receiver when the tip of the stylus touches the screen of the electronic device;
a second obtaining step of acquiring a system time of the electronic device when the tip of the stylus touches the screen;
a calculating step of calculating a coordinate value of a tip of the stylus according to a distance between a tip of the stylus and each receiver;
a conversion step of converting the coordinate value of the stylus pen tip calculated above to a coordinate value of the contact point of the stylus pen tip contacting the screen; and performing a step of contacting the screen according to the pen tip of the stylus pen The coordinate value of the upper contact point and the system time each time the stylus tip touches the screen to simulate the corresponding event operation. The stylus operation recognition method according to claim 6, wherein the method further includes: a control step of controlling each receiver to receive the identification code of the stylus sent by the stylus. The stylus operation recognition method of claim 7, wherein the performing step further comprises: identifying the multi-touch according to the identification code of each stylus. The stylus operation recognition method described in claim 6, wherein the event operation comprises: clicking, double-clicking, and dragging. For example, in the stylus operation recognition method described in claim 6, the number of the receivers is not less than three.