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A method and device for controlling EDID sub-channels

A channel control and flag bit technology, applied in image communication, selective content distribution, TV, etc., can solve problems such as incompatibility, inability to accurately judge the correctness of video signals, and incomplete resolution of user experience, so as to improve comfort Effect

Active Publication Date: 2020-03-10
WHALEY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the built-in decoding judgment module cannot accurately judge the correctness of the video signal and cannot avoid displaying abnormal images
That is, if there is an EDID version incompatibility problem, users will still see abnormal images for a period of time, which does not perfectly solve the problem of user experience
Finally, the EDID version memory is limited to Flash memory, which limits the flexibility of product design and the reduction of manufacturing cost of the whole machine.

Method used

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  • A method and device for controlling EDID sub-channels
  • A method and device for controlling EDID sub-channels
  • A method and device for controlling EDID sub-channels

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0055] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", etc. are only used to distinguis...

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Abstract

The embodiment of the invention provides an EDID shunt control method and apparatus, and belongs to the technical field of display. The shunt control method includes: loading an EDID data table to a memory, and obtaining an EDID adaptive function flag bit corresponding to a target HDMI port connected with external equipment and recorded in the EDID data table; determining the on-off state of an adaptive function of the target HDMI port according to the EDID adaptive function flag bit; if the on-off state is on, determining the type of the external equipment, loading an EDID file corresponding to the type of the external equipment, and setting an EDID version flag bit of the target HDMI port in the data table in a corresponding manner; and when the on-off state is off, loading the corresponding EDID file according to the EDID version flag bit. According to the method and apparatus, the switching accuracy of the EDID versions can be improved, the time for waiting images for users is shortened, and the comfort of the user experience is improved.

Description

technical field [0001] The present invention relates to the field of display, in particular to an EDID sub-path control method and device. Background technique [0002] For each HDMI (High Definition Multimedia Interface, high-definition multimedia interface) receiving end, there will be an EDID (Extended Display Identification Data, extended display identification data) file for marking. In order to support the transmission and display of 4K@50Hz / 60Hz signals, the HDMI standard was upgraded from version 1.4 to version 2.0, and the corresponding EDID version was also upgraded simultaneously. However, the EDID version suitable for HDMI 2.0 and the EDID version suitable for HDMI 1.4 are not well compatible with each other in standard design, resulting in devices that only support HDMI 1.4 (such as players and network set-top boxes, etc.) cannot correctly identify HDMI The EDID version corresponding to 2.0 often makes the device appear pink, green or silent, which greatly redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765H04N21/4363
CPCH04N5/765H04N21/43635
Inventor 鲁忠辉彭益兵潘英杰
Owner WHALEY TECH CO LTD