Method and device for realizing wired screen transmission

A technology of screen transmission and wire, applied in the field of data transmission, can solve the problems of complex wiring and high user professional level requirements.

Active Publication Date: 2021-08-20
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are problems such as complex wiring and high requirements for users' professional level

Method used

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  • Method and device for realizing wired screen transmission
  • Method and device for realizing wired screen transmission
  • Method and device for realizing wired screen transmission

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] figure 1 It is a schematic diagram of the system environment for implementing the wired screen transmission method of the present invention. Such as figure 1 As shown, the system environment of the embodiment of the present invention includes a display source device (ie, the first device), circuit A (ie, the simulated USB device), and a display device (ie, the second device). The display source device can be a device or system running an operating system such as a PC, a mobile phone, etc., and has at least one pre-installed universal driver in the system, and the universal driver provides ...

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Abstract

The invention relates to a method and a device for realizing wired screen transmission. The method includes: providing the first device with a number of communication protocol ports through the first USB interface of the local end, which can be recognized by the general driver of the first device, and establishing the connection between the local end and the first device through the communication protocol ports and the first USB interface. The USB communication connection of the device; detecting that the first USB interface has information from the first device, detecting the communication protocol port for transmitting the information, and if it is a port for transmitting audio and video data, identifying the information as audio and video data; Forward the audio and video data to the second device through the second USB interface of the local end; detect that the second USB interface has a control signal from the second device, then adapt the control signal to the port used to transmit the control signal, and pass the second USB interface A USB interface sends to the first device. The invention can simplify the wiring when transmitting the screen, and reduce the difficulty of wiring for users.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a method and device for realizing wired screen transmission. Background technique [0002] Screen transfer is realized by computer and other display source devices intercepting the screen pages and sound data of the system, and sending them to the display device, and the display device decodes, displays and plays the sent pictures and sounds. Screen transmission is often used in conferences or teaching fields. Users need to project audio and video signals from the computer to a large-screen LCD electronic whiteboard or projector for display. The audio and video data on the computer are sent to the display device through the corresponding data cable. However, in the traditional screen display mode, the display device is only used for information display, and does not have the function of receiving user operation instructions and sending back the display source, which is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765H04N21/4363
CPCH04N5/765H04N21/43632H04N21/43635G06F3/14H04N21/4363
Inventor 庞远杨侯旻翔
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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