DVI functionality

DVI (Digital Visual Interface), namely digital video interface. In Silicon Image's PanalLink interface technology, based on TMDS (Transition Minimized Differential Signaling, Minimized Differential Signaling) as basic electrical electronic protocol cat6 ethernet cable connection. TMDS signal is a differential mechanism, the pixel data can be encoded and transmitted via a serial connection. The digital signal generated by the transmitter card in accordance with the transmission through the TMDS channel TMDS encoding protocol to the receiver, after decoding to give a digital display device. A DVI display system includes a transmitter and a receiver. Transmitter is the source of the signal, can be built-in graphics chip, the chip Plug-In Terminal Block can also be in the form of additional graphics appear on the PCB; while the receiver is a circuit monitor, which can accept digital signals, decode and pass to the digital display circuit through which both the signal from a graphics image on the display.

HDMI component

Generally, HDMI connected by a signal source and receiver components, and sometimes in a system may also comprise a plurality of HDMI input or output device. Each HDMI signal input interface can receive information in accordance with standard connectors, the same usb 3.0 extension cable signal output interface will carry all of the signal information. HDMI cable and the receiver comprises three different TMDS data channels and one clock channel, these channels to support video, audio data and additional information, video, audio data and additional information transmitted by the three channels to the receiver, and the video after the pixel clock is transmitted through the TMDS clock channel, the receiver accepts the frequency parameters, and then restore the other three data channels to pass over the information. Source code format video and audio signal transmission HDMI inputs include video pixel data, control data and packet. Wherein Mini HDMI cable the data packet contains the information of audio data and auxiliary data, in order to obtain a high reliability, while HDMI audio data and control data, the data packet further includes a BCH error correction code. HDMI processed data information can have a variety of different ways, but ultimately contain two control data in each of the TMDS channel, 8 and 4 video data packets.

hdmi cable wire is used to transmit high-definition multimedia video signal.

hdmi cable can be high-quality transmission of uncompressed HD video and multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion, can guarantee the highest quality audio and video signal transmission. Transmission principle HDMI cable 2HDMI data plug in terminal block cable data lines 1HDMI hdmi cable line has a "plug and play" feature, automatically, "negotiation", automatically selects the most appropriate video / audio formats between the signal source and the display device. Volume DVI HDMI interface, compared with the smaller, and can simultaneously transmit audio and video signals. DVI cable length can not be more than eight meters, otherwise it will Dvi to hdmi adapter affect the picture quality, but HDMI can transmit as far as 15 meters. As long as an HDMI cable, you can replace up to 13 analog transmission line, a home entertainment system can effectively solve the tangled mess behind the wiring problem.