Touch response method and device for capacitive touch screen, and intelligent device

Abstract

Embodiments of the present application relate to a touch response method and apparatus for a capacitive screen, and an intelligent device. The touch response method for the capacitive screen in the embodiments of the present application includes: when it is detected that the intelligent device is running a writing window, scanning the driving electrodes of the capacitive screen at a set first rate and a first scanning interval; when a first touch operation and a second touch operation are simultaneously detected in the writing window, generating a first writing trajectory according to the first touch operation and generating a second writing trajectory according to the second touch operation; performing graphic recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the graphic recognition result, where the graphic recognition is used to recognize the stroke features of the writing trajectory; and pushing the to-be-written text to the user according to the to-be-written trajectory. The touch response method for the capacitive screen in the embodiments of the present application performs graphic recognition on each writing trajectory, and determines the correct user writing operation according to the recognized stroke features, thereby preventing the mis-touch during writing from affecting the writing operation.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of writing on intelligent devices, and particularly to a touch response method and device for a capacitive screen, and an intelligent device. Background Art

[0002] In recent years, with the rise of intelligent devices such as smart phones and tablet computers, the capacitive touch screen market has developed rapidly.

[0003] Compared with ordinary resistive touch screens that can only perform single-point touch control, capacitive touch screens support a multi-touch human-computer interaction method.

[0004] A transparent special metal conductive substance is attached to the glass surface of the capacitive touch screen. When a finger touches the metal conductive substance layer, the capacitance of the contact point changes, causing the frequency of the oscillator connected thereto to change. By measuring the frequency change, the touch position can be determined to obtain information. Currently, capacitive touch screens mainly include self-capacitive touch screens and mutual-capacitive touch screens. Among them, the mutual-capacitive touch screen includes a plurality of driving electrodes T(1) to T(N) and a plurality of receiving electrodes R(1) to R(M). The driving electrodes and the receiving electrodes are arranged crosswise to form a plurality of mutual capacitance sensing nodes. The scanning method adopted is as follows: in each frame of scanning, driving signals are sequentially sent to the plurality of driving electrodes T(1) to T(N), and some or all of the plurality of receiving electrodes R1 to Rn receive signals simultaneously, so as to ensure that when a touch event occurs at any position, the capacitive screen can find the touch position after the end of each frame of scanning.

[0005] However, in some scenarios of handwriting input, when the user is writing and the hand or other parts for writing touch the capacitive screen, the operating system of the intelligent device may not correctly recognize the handwriting operation. Summary of the Invention

[0006] The embodiments of the present application provide a touch response method and device for a capacitive screen, and an intelligent device. When multiple writing trajectories appear in the writing window of the intelligent device, by performing pattern recognition on each writing trajectory and determining the correct user writing operation according to the recognized stroke features, the influence of accidental touch during writing on the writing operation is prevented.

[0007] In a first aspect, the embodiments of the present application provide a touch response method for a capacitive screen, and the method includes:

[0008] When it is detected that the intelligent device is running a writing window, scan the driving electrodes of the capacitive screen at a set first rate and a first scanning interval;

[0009] When a first touch operation and a second touch operation are simultaneously detected in the writing window, a first writing trajectory is generated according to the first touch operation, and a second writing trajectory is generated according to the second touch operation;

[0010] Perform graphic recognition on the first writing trajectory and the second writing trajectory, and determine a to-be-written trajectory according to the graphic recognition result, wherein the graphic recognition is used to recognize the stroke features of the writing trajectory;

[0011] Push the to-be-written text to the user according to the to-be-written trajectory.

[0012] Optionally, performing graphic recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the graphic recognition result includes:

[0013] Determine the writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

[0014] Optionally, performing graphic recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the graphic recognition result includes:

[0015] Determine the writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

[0016] Optionally, when the to-be-written trajectory cannot be determined according to the graphic recognition result, it further includes:

[0017] Determine a first writing area according to the first writing trajectory;

[0018] Determine a second writing area according to the second writing trajectory;

[0019] Determine the to-be-written trajectory according to at least one of the following parameters:

[0020] The sizes of the first writing area and the second writing area, and the positions of the first writing area and the second writing area in the writing window.

[0021] Optionally, it further includes the following steps:

[0022] When it is detected that the smart device closes the writing window, scan the driving electrodes of the capacitive screen at a set second rate and a second scanning interval, wherein the second rate is less than the first rate, and the second scanning interval is less than the first scanning interval.

[0023] In a second aspect, an embodiment of the present application provides a touch response device for a capacitive screen, and the device includes:

[0024] A first scanning module, configured to scan driving electrodes of a capacitive screen at a set first rate and a first scanning interval when it is detected that a writing window is running on an intelligent device;

[0025] A writing trajectory generation module, configured to generate a first writing trajectory according to the first touch operation and generate a second writing trajectory according to the second touch operation when the first touch operation and the second touch operation are simultaneously detected in the writing window;

[0026] A writing trajectory determination module, configured to perform graphic recognition on the first writing trajectory and the second writing trajectory, and determine a to-be-written trajectory according to a graphic recognition result, wherein the graphic recognition is used to recognize stroke features of the writing trajectory;

[0027] A text push module, configured to push to-be-written text to a user according to the to-be-written trajectory.

[0028] Optionally, the writing trajectory determination module includes:

[0029] A first writing trajectory determination unit, configured to determine a writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

[0030] Optionally, the writing trajectory determination module includes:

[0031] A second writing trajectory determination unit, configured to determine a writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

[0032] In a third aspect, an embodiment of the present application provides an intelligent device, including:

[0033] At least one memory and at least one processor;

[0034] The memory is configured to store one or more programs;

[0035] When the one or more programs are executed by the at least one processor, the at least one processor implements the steps of the touch response method for the capacitive screen as described in the first aspect of the embodiments of the present application.

[0036] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the touch response method for the capacitive screen as described in the first aspect of the embodiments of the present application are implemented.

[0037] In the embodiments of the present application, when multiple writing trajectories appear in the writing window of the intelligent device, by performing graphic recognition on each writing trajectory and determining the correct user writing operation according to the recognized stroke features, the influence of accidental touches during writing on the writing operation is prevented.

[0038] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings. Description of the Drawings

[0039] Figure 1 Schematic diagram of a scenario of writing using a smart device in an example;

[0040] Figure 2 Flowchart of a touch response method for a capacitive screen provided in an exemplary embodiment;

[0041] Figure 3 Schematic diagram of the structure of a touch response device for a capacitive screen provided in an exemplary embodiment;

[0042] Figure 4 Schematic diagram of the structure of a smart device provided in an exemplary embodiment. Detailed Embodiments

[0043] To make the objectives, technical solutions, and advantages of the present application more clear, the following will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0044] It should be clear that the described embodiments are only some embodiments of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the embodiments of the present application without creative efforts belong to the scope protected by the embodiments of the present application.

[0045] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0046] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In addition, in the description of the present application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0048] As Figure 1 shown, Figure 1 is a schematic diagram of a user writing on the interface of a smart device with a capacitive screen. In the Figure 1 example, an application program is running on the smart device 100. The application program includes a chat window above and a writing window below. The user writes text below and can send the writing result to the chat window above. Among them, the smart device described in the embodiments of the present application refers to an electronic device installed with a smart operating system and having a display screen. The display screen can be a capacitive screen, and the operating system can be, for example, the Android system. The smart device can specifically be a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), an e-book reader, a multimedia player, etc.

[0049] In Figure 1 the scenario, if the user's fingertip and other parts of the hand touch the writing window simultaneously when writing, for example Figure 1 the lines in are the trajectories of the user's fingertip writing, and the two small circles are the recognition traces caused by accidental touches of other parts of the hand. In this state, the operating system cannot correctly recognize the user's current writing result.

[0050] To solve this technical problem, the embodiments of the present application provide a touch response method for a capacitive screen. As Figure 2 shown, in an exemplary embodiment, the method includes the following steps:

[0051] S201: When it is detected that the intelligent device runs the writing window, the driving electrodes of the capacitive screen are scanned at a set first rate and a first scanning interval.

[0052] The writing window can be, for example, Figure 1 the writing window generated in the application running on the intelligent device as shown, which is used to provide a handwritten input operation for the user. The first rate refers to the scanning speed of the driving electrodes of the capacitive screen, and the first scanning interval means that when scanning the driving electrodes, it is scanned at intervals. The first scanning interval indicates how many driving electrodes that are not scanned are included between two scanned driving electrodes.

[0053] In some examples, when it is detected that the intelligent device closes the writing window, the driving electrodes of the capacitive screen are scanned at a set second rate and a second scanning interval, where the second rate is less than the first rate, and the second scanning interval is less than the first scanning interval.

[0054] S202: When a first touch operation and a second touch operation are simultaneously detected in the writing window, a first writing trajectory is generated according to the first touch operation, and a second writing trajectory is generated according to the second touch operation.

[0055] Among them, the first writing trajectory is generated according to continuous first touch operations, and the second writing trajectory is generated according to continuous second touch operations.

[0056] S203: Perform pattern recognition on the first writing trajectory and the second writing trajectory, and determine the to-be-written trajectory according to the pattern recognition result, where the pattern recognition is used to recognize the stroke features of the writing trajectory.

[0057] In a specific example, the stroke features can be the thickness of the stroke or the number of strokes. Since accidental touch operations are usually discontinuous, the stroke thickness generated by accidental touch operations is not uniform, or the strokes are fewer than those of the normal writing being performed simultaneously. Therefore, in the embodiments of the present application, the writing trajectory with more uniform stroke thickness can be determined as the to-be-written trajectory, or the writing trajectory with more strokes can be determined as the to-be-written trajectory.

[0058] In a specific example, the stroke features of the writing trajectory can be recognized by the distribution of the driving electrodes occupied by the scanned writing trajectory. Therefore, in the embodiments of the present application, when running the writing window, scanning at a greater scanning rate and a lower scanning interval can more accurately obtain the stroke features of the writing trajectory.

[0059] In a specific example, when the to-be-written trajectory cannot be determined according to the pattern recognition result, it further includes:

[0060] Determine a first writing area according to the first writing trajectory;

[0061] Determine a second writing area according to the second writing trajectory;

[0062] Determine a to-be-written trajectory according to at least one of the following parameters:

[0063] The sizes of the first writing area and the second writing area, and the positions of the first writing area and the second writing area in the writing window.

[0064] Among them, it may be to determine the writing trajectory with a larger writing area as the to-be-written trajectory, or to determine the writing trajectory with a relatively central position of the writing area as the to-be-written trajectory.

[0065] S204: Push the to-be-written text to the user according to the to-be-written trajectory.

[0066] In an embodiment of the present application, a text bar may be displayed at the upper end of the writing window, and the text recognized according to the writing trajectory and related text may be pushed to the user in the text bar.

[0067] In an embodiment of the present application, when multiple writing trajectories appear in the writing window of the intelligent device, by performing graphic recognition on each writing trajectory and determining the correct user writing operation according to the recognized stroke features, the influence of accidental touches during writing on the writing operation is prevented.

[0068] Corresponding to the foregoing touch response method of the capacitive screen, an embodiment of the present application further provides a touch response device for a capacitive screen. When multiple writing trajectories appear in the writing window of the intelligent device, by performing graphic recognition on each writing trajectory and determining the correct user writing operation according to the recognized stroke features, the influence of accidental touches during writing on the writing operation is prevented..

[0069] Figure 3 For a structural schematic diagram of a touch response device for a capacitive screen provided by an embodiment of the present application, as Figure 3 shown, the touch response device 300 of the capacitive screen includes:

[0070] A first scanning module 301, configured to scan the driving electrode of the capacitive screen at a set first rate and first scanning interval when detecting that the intelligent device runs a writing window;

[0071] A writing trajectory generation module 302, configured to generate a first writing trajectory according to the first touch operation and a second writing trajectory according to the second touch operation when detecting the first touch operation and the second touch operation in the writing window at the same time;

[0072] A writing trajectory determination module 303, configured to perform pattern recognition on the first writing trajectory and the second writing trajectory, and determine a to-be-written trajectory according to a pattern recognition result, where the pattern recognition is used to recognize stroke features of the writing trajectory;

[0073] A text push module 304, configured to push to-be-written text to a user according to the to-be-written trajectory.

[0074] In an exemplary embodiment, the writing trajectory determination module includes:

[0075] A first writing trajectory determination unit, configured to determine a writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

[0076] In an exemplary embodiment, the writing trajectory determination module includes:

[0077] A second writing trajectory determination unit, configured to determine a writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

[0078] In an exemplary embodiment, the writing trajectory determination module includes:

[0079] A first determination unit, configured to determine a first writing area according to the first writing trajectory when the to-be-written trajectory cannot be determined according to the pattern recognition result;

[0080] A second determination unit, configured to determine a second writing area according to the second writing trajectory;

[0081] A third determination unit, configured to determine the to-be-written trajectory according to at least one of the following parameters:

[0082] The sizes of the first writing area and the second writing area, and the positions of the first writing area and the second writing area in the writing window.

[0083] In an exemplary embodiment, the touch response device 300 of the capacitive screen further includes:

[0084] A second scanning module, configured to scan driving electrodes of the capacitive screen at a set second rate and a second scanning interval when it is detected that the smart device closes the writing window, where the second rate is less than the first rate, and the second scanning interval is less than the first scanning interval.

[0085] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, devices, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0086] Corresponding to the above-mentioned touch response method of the capacitive screen, an embodiment of the present application further provides an intelligent device, which may be a computer device such as a computer or a server.

[0087] As Figure 4 shown, Figure 4 is a structural block diagram of an intelligent device shown by an embodiment of the present application according to an exemplary embodiment.

[0088] The intelligent device 400 includes a processor 410 and a memory 420. The number of processors 410 in the main control chip may be one or more. Figure 4 Here, one processor 410 is taken as an example. The number of memories 420 in the main control chip may be one or more. Figure 4 Here, one memory 420 is taken as an example.

[0089] The memory 420, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the touch response method program of the capacitive screen described in any embodiment of the present application, and the program instructions / modules corresponding to the touch response method of the capacitive screen described in any embodiment of the present application. The memory 420 may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the device. In addition, the memory 420 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 420 may further include a memory remotely set relative to the processor 410, and these remote memories may be connected to the device through a network. Examples of the above network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0090] The processor 410 executes various functional applications and data processing of the device by running software programs, instructions, and modules stored in the memory 420, that is, implements the touch response method of the capacitive screen described in any of the above embodiments.

[0091] Specifically, in an exemplary embodiment, when the processor 410 executes one or more programs stored in the memory 420, the following operations are specifically implemented:

[0092] When it is detected that the intelligent device is running a writing window, the driving electrodes of the capacitive screen are scanned at a set first rate and a first scanning interval;

[0093] When a first touch operation and a second touch operation are simultaneously detected in the writing window, a first writing trajectory is generated according to the first touch operation, and a second writing trajectory is generated according to the second touch operation;

[0094] Perform pattern recognition on the first writing trajectory and the second writing trajectory, and determine a to-be-written trajectory according to the pattern recognition result, where the pattern recognition is used to recognize the stroke features of the writing trajectory;

[0095] Push the to-be-written characters to the user according to the to-be-written trajectory.

[0096] Based on the above embodiment, performing pattern recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the pattern recognition result includes:

[0097] Determine the writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

[0098] Based on the above embodiment, performing pattern recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the pattern recognition result includes:

[0099] Determine the writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

[0100] Based on the above embodiment, when the to-be-written trajectory cannot be determined according to the pattern recognition result, it further includes:

[0101] Determine a first writing area according to the first writing trajectory;

[0102] Determine a second writing area according to the second writing trajectory;

[0103] Determine the to-be-written trajectory according to at least one of the following parameters:

[0104] The sizes of the first writing area and the second writing area, and the positions of the first writing area and the second writing area in the writing window.

[0105] Based on the above embodiment, the following steps are further included:

[0106] When it is detected that the smart device closes the writing window, scan the driving electrodes of the capacitive screen at a set second rate and a second scanning interval, where the second rate is less than the first rate, and the second scanning interval is less than the first scanning interval.

[0107] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the touch response method of the capacitive screen described in any one of the above embodiments.

[0108] The present invention may be embodied in the form of a computer program product implemented on one or more storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) that contain program code. Computer-readable storage media include both permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information may be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include but are not limited to: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tapes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

[0109] It should be understood that the embodiments of the present application are not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the embodiments of the present application is limited only by the appended claims.

[0110] The above-described embodiments merely represent several implementation manners of the embodiments of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the embodiments of the present application, several variations and improvements can still be made, and these all belong to the protection scope of the embodiments of the present application.

Claims

1. A touch response method for a capacitive screen, characterized in that, The method includes: When it is detected that the intelligent device runs a writing window, scanning the driving electrodes of the capacitive screen at a set first rate and first scanning interval; When a first touch operation and a second touch operation are simultaneously detected in the writing window, generating a first writing trajectory according to the first touch operation and generating a second writing trajectory according to the second touch operation; Performing pattern recognition on the first writing trajectory and the second writing trajectory, and determining a to-be-written trajectory according to the pattern recognition result, wherein the pattern recognition is used to recognize the stroke features of the writing trajectory; Pushing the to-be-written text to the user according to the to-be-written trajectory; Wherein, when the to-be-written trajectory cannot be determined according to the pattern recognition result, it further includes: Determining a first writing area according to the first writing trajectory; Determining a second writing area according to the second writing trajectory; Determining the to-be-written trajectory according to the following parameters: The sizes of the first writing area and the second writing area and the positions of the first writing area and the second writing area in the writing window.

2. The touch response method for a capacitive screen according to claim 1, characterized in that, Performing pattern recognition on the first writing trajectory and the second writing trajectory, and determining the to-be-written trajectory according to the pattern recognition result, includes: Determining the writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

3. The touch response method for a capacitive screen according to claim 1, characterized in that, Performing pattern recognition on the first writing trajectory and the second writing trajectory, and determining the to-be-written trajectory according to the pattern recognition result, includes: Determining the writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

4. A touch response device for a capacitive screen, characterized in that, The device includes: A first scanning module, configured to scan the driving electrodes of the capacitive screen at a set first rate and first scanning interval when it is detected that the intelligent device runs a writing window; A writing trajectory generation module, configured to generate a first writing trajectory according to the first touch operation and generate a second writing trajectory according to the second touch operation when a first touch operation and a second touch operation are simultaneously detected in the writing window; A writing trajectory determination module, configured to perform pattern recognition on the first writing trajectory and the second writing trajectory, and determine the to-be-written trajectory according to the pattern recognition result, wherein the pattern recognition is used to recognize the stroke features of the writing trajectory; A text pushing module, configured to push the to-be-written text to the user according to the to-be-written trajectory; Wherein, the writing trajectory determination module includes: A first determination unit, configured to determine a first writing area according to the first writing trajectory when the to-be-written trajectory cannot be determined according to the pattern recognition result; A second determination unit, configured to determine a second writing area according to the second writing trajectory; A third determination unit, configured to determine the to-be-written trajectory according to the following parameters: The sizes of the first writing area and the second writing area and the positions of the first writing area and the second writing area in the writing window.

5. The touch response device for a capacitive screen according to claim 4, characterized in that, The writing trajectory determination module includes: A first writing trajectory determination unit, configured to determine the writing trajectory with more uniform stroke thickness of the writing trajectory as the to-be-written trajectory.

6. The touch response device for a capacitive screen according to claim 4, characterized in that, The writing trajectory determination module includes: A second writing trajectory determination unit, configured to determine the writing trajectory with more strokes of the writing trajectory as the to-be-written trajectory.

7. An intelligent device, characterized in that, Includes: At least one memory and at least one processor; The memory is used for storing one or more programs; When the one or more programs are executed by the at least one processor, the at least one processor implements the steps of the touch response method of the capacitive screen according to any one of claims 1 to 3.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, the steps of the touch response method of the capacitive screen according to any one of claims 1 to 3 are implemented.

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