• The main purpose of HDMI and the function classification of data line

    • source: Tina Yuan;
    • Time: 9/26/2019 7:42:46 PM
  • HDMI: The full name of HDMI in English is "HighDefinitionMultimedia", which means high-definition multimedia interface. The HDMI interface provides up to 5 Gbps of data transmission for uncompressed audio signals and high-resolution video signals. At the same time, it can ensure the most qualified video signal transmission.
    HDMI is compatible with DVI in the form of pin, but in a different package. Compared to DVI, HDMI can transmit digital audio signals and add support for HDCP, while provides better DDC options.
    The advantage of using HDMI is that only one HDMI data cable is needed, so that audio and video signals can be transmitted at the same time, instead of requiring multiple wires to be connected at the same time; and at the same time, higher audio and video transmission quality can be achieved. For consumers, HDMI technology not only provides clear picture quality, but also greatly simplifies the installation of home theater systems due to the same cable for audio and video.
    1. Internet cable: It can only be used for GPRS or CDMA1X Internet access. Typical models: V730 series; V688 series; PHS series.
    2.Brush machine line: It can only be used to upgrade the brush machine. Typical model: BenQ S700; upgrade and unlock serve integrally.
    3.Synchronization line: used to transmit phone book, picture ringtone, SMS, multimedia data and serve other USB3.0 data line manufacturers. Of course, some support two-way transmission, and some only support one-way transmission. Such data lines are much common.
    4.Charging cable: generally means the Internet cable or sync cable with a USB charging function, which is more practical and convenient, along with Internet and group messaging essential features. It can also be divided into two types: charging without switch and charging with switch. The former is charged as soon as it is plugged in. The latter has a small switch that controls whether or not it is charged. Of course, as for the highest level with the charging switch, the price is higher. Recommended type: CDMA Internet series; Siemens 3508 series.
    5.Multi-function line: supports surfing the Internet, synchronization, brushing, charging and other 2 or more functions at the same time. New Samsung line is also equipped with dual interface, USB synchronous Internet abd serial port brusher.

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