Touch sound feedback circuit for touch screen

Abstract

The utility model relates to touch control technical field especially relates to a touch control sound production feedback circuit for touch screen, touch control sound production feedback circuit is built -in in touch screen and is electrically connected in external host computer and touch screen, touch control sound production feedback circuit includes: input module, main control module, sound production control module and sound production device, input module is electrically connected with touch screen, is used for receiving touch signal that touch screen outputs, main control module is connected with input module, input module receives touch signal, and sends feedback signal to main control module, sound production control module is electrically connected with main control module, and main control module receives feedback signal, and sends sound production instruction to sound production control module, and sound production device is electrically connected with sound production control module, and sound production control module receives sound production instruction, and sends pulse signal to sound production device, and controls sound production device to carry out sound production feedback, the utility model discloses can reduce feedback delay, and real -time is better.

Description

Technical Field

[0001] This utility model relates to the field of touch control technology, and in particular to a touch sound feedback circuit for touch screens. Background Technology

[0002] Existing touchscreen devices typically provide user feedback via a motherboard buzzer or a separate speaker, but this approach has the following drawbacks:

[0003] The motherboard buzzer is located on the motherboard, which is usually installed inside the computer case. When the computer case is placed far away from the operator, the buzzer may be difficult to hear.

[0004] External speakers require system control to produce sound. That is, after the touch signal is transmitted to the system, the system then controls the speaker to play the audio. This method is affected by the system and will have a certain delay, causing the touch and feedback to be out of sync. Furthermore, other system malfunctions may cause the touch feedback sound to fail to play, misleading the operator and making them mistakenly believe that the touch is abnormal.

[0005] Therefore, there is an urgent need to develop a touch-sensitive sound feedback circuit to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a touch-sensitive acoustic feedback circuit for a touchscreen, which is built into the touchscreen and electrically connected to an external host and the touchscreen. The touch-sensitive acoustic feedback circuit includes:

[0007] The input module is electrically connected to the touch screen and is used to receive touch signals output by the touch screen.

[0008] The main control module is connected to the input module. After receiving a touch signal, the input module sends a feedback signal to the main control module.

[0009] The sound control module is electrically connected to the main control module. After receiving the feedback signal, the main control module sends a sound command to the sound control module.

[0010] The sound-generating device is electrically connected to the sound-generating control module. After receiving the sound-generating command, the sound-generating control module sends a pulse signal to the sound-generating device to control the sound-generating device to provide sound feedback.

[0011] Preferably, the above-mentioned touch-sensitive sound feedback circuit includes:

[0012] The output module has its input terminal electrically connected to the main control module and its output terminal electrically connected to the external host, sending touch signals to the external host.

[0013] Preferably, the above input module includes:

[0014] IIC input devices are electrically connected to the touchscreen and are used to receive touch signals.

[0015] Preferably, the above input module includes:

[0016] The USB input device is electrically connected to the touchscreen and is used to receive touch signals.

[0017] Preferably, the above-mentioned output module is connected to the main control module through an IIC output device.

[0018] Preferably, the output module is connected to the main control module via a USB output device.

[0019] Preferably, the touch screen is provided with an INT pin, which is electrically connected to the sound control module through the input module. The input module receives the INT signal output from the INT pin and outputs it to the sound control module. The sound control module controls the sound-generating device to provide sound feedback according to the INT signal.

[0020] Preferably, the touch signal includes a touch coordinate signal.

[0021] Preferably, the touch signal includes a pressure signal.

[0022] Preferably, the sound-generating device is a buzzer.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. The circuit is simple and can be directly installed inside the screen, shortening the distance between the operator and the sound source, resulting in clearer sound;

[0025] 2. Feedback signals do not require system processing, resulting in lower latency and better real-time performance;

[0026] 3. When the system crashes or freezes, the touch feedback sound remains unaffected, helping users to quickly diagnose the problem. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the present invention.

[0029] The attached figures are labeled as follows:

[0030] Touchscreen 1; External host 2; Input module 3; Main control module 4;

[0031] 5. Sound control module; 6. Sound generating device; 7. Output module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The illustrative embodiments and descriptions of this utility model are used to explain the utility model, but are not intended to limit the utility model. Furthermore, elements / components using the same or similar reference numerals in the drawings and embodiments are used to represent the same or similar parts.

[0034] The terms "first," "second," "S1," "S2," etc., used in this document do not specifically refer to any order or sequence, nor are they intended to limit the present invention. They are merely used to distinguish elements or operations described with the same technical terms.

[0035] The directional terms used in this article, such as up, down, left, right, front, or back, are for reference only when referring to the accompanying drawings. Therefore, the use of directional terms is for illustrative purposes and not to limit this work.

[0036] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0037] The term "and / or" as used herein includes any or all of the things mentioned.

[0038] The term "multiple" in this article includes "two" and "more than two"; the term "multiple groups" in this article includes "two groups" and "more than two groups".

[0039] Certain terms used to describe this application will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the application.

[0040] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the present invention. Figure 1As shown, this utility model provides a touch-sensitive sound feedback circuit for a touchscreen, which is built into the touchscreen 1 and electrically connected to an external host 2 and the touchscreen 1. The touch-sensitive sound feedback circuit includes: an input module 3, a main control module 4, a sound control module 5, and a sound-generating device 6. The input module 3 is electrically connected to the touchscreen 1 and is used to receive touch signals output by the touchscreen 1. The main control module 4 is connected to the input module 3. After receiving the touch signal, the input module 3 sends a feedback signal to the main control module 4. The sound control module 5 is electrically connected to the main control module 4. After receiving the feedback signal, the main control module 4 sends a sound command to the sound control module 5. The sound-generating device 6 is electrically connected to the sound control module 5. After receiving the sound command, the sound control module 5 sends a pulse signal to the sound device 6 to control the sound device 6 to provide sound feedback.

[0041] Furthermore, please refer to Figure 1 The aforementioned touch-sensitive sound feedback circuit includes: an output module 7, the input terminal of which is electrically connected to the main control module 4, and the output terminal of which is electrically connected to the external host 2, to send touch signals to the external host 2.

[0042] Furthermore, please refer to Figure 1 The above-mentioned input module 3 includes: an IIC input device, which is electrically connected to the touch screen 1 and is used to receive touch signals.

[0043] Furthermore, please refer to Figure 1 The input module 3 mentioned above includes a USB input device, which is electrically connected to the touch screen 1 and is used to receive touch signals.

[0044] Furthermore, please refer to Figure 1 The output module 7 is connected to the main control module 4 via an IIC output device.

[0045] Furthermore, please refer to Figure 1 The output module 7 is connected to the main control module 4 via a USB output device.

[0046] Furthermore, please refer to Figure 1 The aforementioned touch screen 1 is equipped with an INT pin, which is electrically connected to the sound control module 5 through the input module 3. The input module 3 receives the INT signal output from the INT pin and outputs it to the sound control module 5. The sound control module 5 controls the sound-generating device 6 to generate sound feedback according to the INT signal.

[0047] Furthermore, please refer to Figure 1 The aforementioned touch signals include touch coordinate signals.

[0048] Furthermore, please refer to Figure 1The aforementioned touch signals include pressure signals.

[0049] Furthermore, please refer to Figure 1 The aforementioned sound-generating device 6 is a buzzer.

[0050] Specifically, in one embodiment of this utility model, the input module 3 is connected to the touch screen 1 controller to acquire signals containing touch coordinates and pressure values ​​in real time; the main control module 4 is connected to the IIC input device or the USB input device. The main control module 4 is used to parse the data transmitted by the IIC input device / USB input device, determine the touch state, and send a sound command to the sound control module 5 after recognizing the touch operation. It can also parse the data content and set different sound modes. The main control module 4 also forwards the data to the output module 7. The output module 7 is connected to the external host 2 and sends the touch operation data to the external host 2. The sound control module 5 outputs a PWM signal according to the sound command of the main control module 4 to control the sound device 6 to emit sound.

[0051] In another embodiment of this utility model, the touch screen 1 has an INT pin, which is connected to the input module 3. When the touch screen 1 performs a touch operation, the INT pin will directly output an INT signal. When used with this touch screen 1, the INT signal replaces the main control module 4 to directly control the sound control module 5.

[0052] In summary, this invention achieves low-latency and low-power touch feedback by directly driving the buzzer through parsing the touchscreen's IIC / USB bus signals.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A touch-sensitive acoustic feedback circuit for a touchscreen, characterized in that, Built into the touchscreen and electrically connected to the external host and the touchscreen, the touch-sensitive acoustic feedback circuit includes: An input module, electrically connected to the touchscreen, is used to receive touch signals output by the touchscreen; The main control module is connected to the input module. After receiving the touch signal, the input module sends a feedback signal to the main control module. The sound control module is electrically connected to the main control module. After receiving the feedback signal, the main control module sends a sound command to the sound control module. The sound-generating device is electrically connected to the sound-generating control module. After receiving the sound-generating command, the sound-generating control module sends a pulse signal to the sound-generating device to control the sound-generating device to provide sound feedback.

2. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, include: The output module has its input terminal electrically connected to the main control module and its output terminal electrically connected to the external host, and sends the touch signal to the external host.

3. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The input module includes: An IIC input device, which is electrically connected to the touchscreen, is used to receive the touch signal.

4. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The input module includes: A USB input device is electrically connected to the touchscreen and is used to receive the touch signal.

5. The touch-sensitive sound feedback circuit as described in claim 2, characterized in that, The output module is connected to the main control module via an IIC output device.

6. The touch-sensitive sound feedback circuit as described in claim 2, characterized in that, The output module is connected to the main control module via a USB output device.

7. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The touch screen is equipped with an INT pin, which is electrically connected to the sound control module through the input module. The input module receives the INT signal output from the INT pin and outputs it to the sound control module. The sound control module controls the sound-generating device to provide sound feedback based on the INT signal.

8. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The touch signal includes touch coordinate signals.

9. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The touch signal includes a pressure signal.

10. The touch-sensitive sound feedback circuit as described in claim 1, characterized in that, The sound-generating device is a buzzer.

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