The ir interface is an infrared remote control interface; the full English name of ir is Infrared Radiation, which means infrared. ir is a wireless communication method that can transmit wireless data; infrared transmission is a point-to-point transmission. The method, wireless, cannot be too far away, must be aligned, and there must be no obstacles in the middle, that is, it cannot pass through walls, and it is almost impossible to control the progress of information transmission.
#The operating environment of this tutorial: Windows 10 system, Dell G3 computer.
What is the ir interface?
The IR interface on the back of the TV is for infrared remote control. A receiving head can be plugged in to control it.
IR (Infrared Radiation, short for infrared) is a wireless communication method that can transmit wireless data.
Since 1974, infrared communication technology has been widely used, such as infrared mice, infrared printers, infrared keyboards and so on.
Infrared transmission is a point-to-point transmission method. It is wireless. It cannot be too far away, it must be aligned, and there must be no obstacles in the middle, that is, it cannot pass through walls. It is almost impossible to control the progress of information transmission. ; IrDA is already a set of standards, and the IR receiving/transmitting components are also standardized products.
TV interface:
HDMI interface: HDMI stands for High Definition Multimedia Interface. HDMI can not only transmit image signals, but also supports the transmission of audio signals. . HDMI interfaces exist in traditional Blu-ray TVs, Internet TVs, and popular smart TVs. In addition, the development of 4K ultra-high definition has also led to the continuous improvement and upgrading of HDMI interfaces;
USB interface: USB interface is also It is the interface that everyone hears and sees the most. It is often used to charge mobile phones or connect to computers. The full name of the USB interface is Universal Serial Bus, which is literally translated as Universal Serial Bus in Chinese. In the TVs of the CRT era, the USB interface did not exist. Later, in the era of LCD TVs, USB interfaces began to emerge. In many early non-smart TVs, we can find the USB2.0 interface;
Memory card interface: To realize various functions of a smart TV, it is also inseparable from the support of various APPs. Many smart TVs come with only a small amount of built-in storage space, leaving not much available for users to use. How to expand the storage space of smart TVs is also a matter of great concern to everyone;
Audio interface: In terms of audio interfaces, there are currently two categories: analog audio interfaces and digital audio interfaces. These two types of interfaces are suitable for different user base. The red and white among red, white and yellow refer to the analog audio interface. In the analog audio interface, there are two different interfaces, the left channel and the right channel. The left channel is marked with the English symbol L and the color is marked in white. The right channel is marked with the English R and marked with a red interface;
Other interfaces: The color difference component interface also transmits video signals. There are currently two forms of color difference component interfaces, namely YPbPr and YCbCr. The former is a progressive color difference component, and the latter is an interlaced color difference component. Relatively speaking, the progressive color difference component has better effects. In the color difference component interface, brightness is marked with Y, and chroma and brightness are separated into three primary colors of red, green, and blue for processing. This is where the name of the color difference component comes from.
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