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Data transmission method and device

A data transmission method and quantitative technology, which is applied in the direction of TV, color TV parts, TV system parts, etc., can solve the problem of not being able to realize the DP video signal transmission between the host and multiple external devices, and not supporting multiple video interfaces And other issues

Active Publication Date: 2022-07-26
MATRIXED REALITY TECH CO LTD
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Problems solved by technology

[0003] However, the existing Type-C interface connection devices usually only include one downlink Type-C interface, and even if it is a multi-port transponder (HUB) with multiple Type-C interfaces, it does not support multiple video interfaces (Displayport, DP) video signal transmission, so the DP video signal transmission between the host and multiple external devices cannot be realized

Method used

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  • Data transmission method and device
  • Data transmission method and device
  • Data transmission method and device

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. The numbers of the drawings in this application are only used to distinguish each step in the solution, and are not used to limit the execution sequence of each step, and the specific execution sequence is subject to the description in the specification.

[0026] In order to solve the problems existing in the prior art, the embodiments of the present application provide a data transmission method, figure 1 It is a schematic flowchart of the data ...

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Abstract

The application discloses a data transmission method and device. The method includes: a central controller obtains a video demand signal of a first external device through at least two downlink Type-C interfaces, and sends a first control command to a channel controller; A control instruction, the channel controller acquires parameter information of the first external device, and transmits the parameter information to the second external device connected to the upstream Type-C interface; the central controller receives the information of the first external device determined by the second external device according to the parameter information. The supported video display format; based on the video display format supported by the first external device being a DP video signal format, the central controller sends a second control command to the video signal splitter; and in response to the second control command, the video signal splitter receives The DP video signal from the second external device sends the DP video signal to the first external device. The present application can realize DP video signal transmission between the second external device host and a plurality of first external devices through multiple downlink Type-C interfaces.

Description

technical field [0001] The present application relates to the technical field of computer interfaces, and in particular, to a data transmission method and device. Background technique [0002] Existing Universal Serial Bus (Universal Serial Bus, USB) interfaces include three different types of interfaces, namely Type-A, Type-B and Type-C. Type-C has a much smaller volume than Type-A and Type-B, and is the latest USB interface form factor. In addition, Type-C is an interface that can be applied to both a host device and an external device. [0003] However, the existing Type-C interface connection device usually only includes one downstream Type-C interface, and even a multi-port repeater (HUB) with multiple Type-C interfaces does not support multiple video interfaces (Displayport, DP) video signal transmission, so the DP video signal transmission between the host and multiple external devices cannot be realized. [0004] How to realize DP video signal transmission between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/268
CPCH04N5/268
Inventor 马岳
Owner MATRIXED REALITY TECH CO LTD
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