Universal converter capable of converting high definition into standard definition

Abstract

The invention provides a universal converter capable of converting high definition into standard definition. The universal converter capable of converting the high definition into the standard definition comprises a high-definition multimedia interface (HDMI) video input device, an image processing device, a composite video broadcast signal (CVBS) output device, a video graphics array (VGA) / YPBPR output device, a power management device, an audio output device and a central control device, wherein the HDMI video input device is connected with the image processing device through a cable, the CVBS output device is connected with the image processing device through a cable, the VGA / YPBPR output device is connected with the image processing device through a cable, the audio output device is connected with the image processing device through a cable, and the central control device is connected with the HDMI video input device through a cable, is connected image processing device through a cable and is connected with the audio output device through a cable. The universal converter can meet the requirement of a user that the high definition is converted into the standard definition on site.

Description

technical field [0001] The invention relates to the technical field of video conversion, in particular to a universal high-definition to standard-definition converter. Background technique [0002] Video converters are mainly used for format conversion between different video interfaces and resolution conversion of the same video interface. With the continuous development of video, there are more and more types of video interfaces on the market, including analog, digital, and There are standard definition and high definition, and in most places where video is applied, analog and digital, standard definition and high definition videos coexist, so the video must be converted so that the entire video system can run smoothly. The video converter generally consists of a video receiving and decoding part, a video encoding part, a central control part, and a power supply part. [0003] Existing video converters have the following defects, specifically as follows: [0004] 1. The ...

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Problems solved by technology

[0004] 1. The existing video converters are only standard-definition-to-high-definition video converters, such as from standard-definition CVBS signals to high-definition HDMI signal converters, from standard-definition YPBPR to high-definition HDMI signal converters, from standard-definition VGA signals to high-definition High-definition HDMI signal converters, these converters can only convert standard-definition signals into high-definition signals, but in real video applications, it is often necessary to convert input high-definition video signals into standard-definition video signals, so as to be compatible with the original Analog display devices, such as VGA projectors, or CVBS video recorders, etc.

[0005] 2. Existing converters can only convert SD signals into HD signals, and their disadvantages are that they cannot convert HD signals into SD signals. In video applications, in many applications, HD signals need to be converted into analog signals, so as to be compatible with some Analog display equipment, so the existing converters cannot meet this kind of application, and it is currently in the stage where multiple video signals are stored. This conversion from high definition to standard definition is in great demand, especially in the upgrading and transformation of video systems middle

[0006] In short, the current video converter cannot meet the user's on-site needs from HD to SD

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