Attività

High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for analog video standards. HDMI implements the EIA/CEA-861 standards, which define video formats and waveforms, transport of compressed and uncompressed LPCM audio, auxiliary data, and implementations of the VESA EDID.  CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the Digital Visual Interface (DVI). No signal conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is used. The Consumer Electronics Control (CEC) capability allows HDMI devices to control each other when necessary and allows the user to operate multiple devices with one handheld remote control device. An electrical cable is an assembly of one or more wires running side by side or bundled, which is used to carry electric current. One or more electrical cables and their corresponding connectors may be formed into a cable assembly, which is not necessarily suitable for connecting two devices but can be a partial product (e.g. to be soldered onto a printed circuit board with a connector mounted to the housing). Cable assemblies can also take the form of a cable tree or cable harness, used to connect many terminals together.

AOC refers to a communication cable that needs to use external energy to convert electrical signals into optical signals, or convert optical signals into electrical signals in the communication process. The optical transceivers of the two sections of the optical cable provide photoelectric conversion and optical transmission functions. It consists of optoelectronic devices (two optical transceivers and cable jumpers). Active optical cables are mainly used in data centers, high-performance computers, large-capacity storage devices and other equipment for high-speed and reliable interconnection and transmission equipment. AOC application is an electrical interface that meets the requirements of industrial standards. It uses the internal electrical-optical-electrical conversion of the optical cable to enable the optical cable to perform efficient and stable data transmission. The maximum signal transmission distance that an HDMI AOC cable can achieve depends on the entire system: the performance of the source device, the performance of the display device, the data transfer rate of the signal, the performance and length of the cable itself. It can also be divided into HDMI AOC cable 4K, HDMI AOC cable 8K and so on. In the digital age, we use data rate to describe the amount of data in bits per second. The length of the HDMI cable is closely related to the maximum data transfer rate. If the distance is too long, the signal received by the HDMI device will have no image, dropped frames, snow, or no sound. The shorter the HDMI cable, the higher the maximum data transfer rate that can be achieved. For example, the data transmission rate of an HDMI cable with a length of 2m is 19Gb/s, which can meet the video transmission of 1080p, 120Hz, and 48bit color depth. However, if the length reaches 6 meters, the data transmission rate will drop to 10Gb/s, which can only meet the video transmission of 1080p, 120Hz, and 24bit color depth. So, as the length of the cable increases, the data transfer rate also decreases.
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