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Method for realizing communication protocol of touch screen

A technology of communication protocol and implementation method, applied in the field of communication protocol, can solve the problems of simple communication protocol, affecting transmission rate, incomplete communication, etc., and achieve the effect of improving accuracy, fast transmission rate, and accurate action response

Active Publication Date: 2009-12-23
GENERALTOUCH TECH
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AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the problem that the coordinate information byte length in the existing touch screen communication protocol affects the transmission rate and the communication protocol is simple, imprecise, and incomplete, which makes the communication error-prone, and provides a method for implementing the touch screen communication protocol. Reduce the byte length of the coordinate data format, increase the transmission rate, and improve the rigor and integrity of the data in the communication protocol, so as to improve fault tolerance and effectiveness, and facilitate expansion and further software development

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  • Method for realizing communication protocol of touch screen

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Embodiment Construction

[0066] The present invention will be further described below in conjunction with specific examples.

[0067] A method for realizing a communication protocol of a touch screen, comprising: a controller of the touch screen transmits touch coordinate data to the host through driver software in the host, and transmits command information or data request information to the controller through the driver software set in the host, and the information sent by the controller to the driver software in response to the data request information.

[0068] The above-mentioned touch coordinate data format is a 6-byte simplified instruction structure, and its format is shown in Table 1:

[0069] Table 1 Touch coordinate data format

[0070]

[0071] The byte bits in Table 1 are 1 to 8 from low to high, and the lower 3 bits of the first byte are "1" to indicate the state flags of "start touch", "continuous touch" and "end touch". .

[0072] As can be seen from Table 1, the X coordinate is ...

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Abstract

The invention discloses a method for realizing communication protocol of a touch screen, relates to a method for realizing communication protocol for transmitting data between a touch screen and a host thereof, and aims to solve the problems that the transmission rate is influenced due to long bytes of coordinate information in the communication protocol of the prior touch screen and the communication is easy to make mistakes because the communication protocol is simple and is not precise or complete. The method comprises that: a controller of the touch screen transmits touch coordinate data of a simple instruction structure with the length of 6 bytes to the host, a driver software set in the host transmits command information or data request information to the controller, and the controller transmits the information responding to the data request information to the driver software. The method is applicable to data communication transmission between the controller of the touch screen and the driver software of the host.

Description

technical field [0001] The invention relates to a method for realizing a communication protocol for data transmission between a touch screen and a host computer. Background technique [0002] Existing touch screens have various types such as resistive touch screens, acoustic wave touch screens, infrared touch screens, capacitive touch screens, and electromagnetic touch screens. In principle, various types of touch screens are driven by sensors, controllers, or electronic circuit components similar to controllers, driver software, or the like. The software consists of software modules. [0003] The function of the controller is to stimulate the touch sensor and detect the touch sensor signal, or only detect the touch sensor signal, process these signals and obtain the touch coordinate data of the touch screen through the processing of these signals, and the controller has corresponding software. [0004] The driver software is set in any host computer with touch screen or ot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/22G06F9/46
Inventor 黄世通尹华成王志旭郑伦见
Owner GENERALTOUCH TECH