Method for transmitting input event based on HDMI

Abstract

The invention discloses a method for transmitting an input event based on an HDMI. The method comprises the following steps: 1, connecting interactive display equipment and a control host through an HDMI data line; 2, sending an input event to the control host through a predefined data packet on the interactive display equipment, and identifying the input event by the control host; and 3, enablingthe control host to make a corresponding response according to the input event, wherein the predefined data packet and the multimedia data packet occupy different channels in HDMI data transmission,and the predefined data packet is defined as a Vendor Specific Command type. According to the method, when the interactive display device receives and displays the multimedia data of the control host,the interactive display device sends its own interactive data to the control host in a predefined data packet, so that the control host performs corresponding operation without additionally using a connection interface, the cost and the complexity can be reduced, and interface occupancy is reduced.

Description

technical field [0001] The invention relates to the field of interface communication, in particular, to a method for transmitting input events based on HDMI. Background technique [0002] With the advancement of science and technology, video and voice processing technology has also made great progress. At the same time, HDMI equipment for transmitting high-definition video and sound is widely used in various fields. At present, many HDMI equipment on the market not only have display and speaker functions, but also have touch screen. and button functions to meet the interaction between the user and the host, how to transmit the user's touch and button events to the host in time is one of the problems that need to be solved in the project. [0003] At present, the main application of HDMI is to transmit video and sound to the HDMI device through the host, and the host obtains the attributes of the device from the HDMI device. For example: HDMI devices integrate touch and key ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for transmitting input events based on HDMI, which is used to solve the problem of transmitting control signals such as touch and keys from HDMI devices to the host in the prior art, Additional external interfaces are required, resulting in cost increases and technical problems of interface occupation

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