HD TVI means High Definition Transport Video Interface, It is a DSP-TVI technology developed by Techpoint(2012), and the Chipset was sold to Intersil, Chinese manufacture, such as Hikvision, HanBang, put this technology into their new product. Hanbang successfully developed the TVI solution, solved HD-SDI's previous problems. TVI can convert the digital signals to analog ones, it extends the transmission distance, reduces the total cost, and takes less storage capacity, HD-TVI is also based on coaxial cable, support HD video signal (1080P/720P), Audio signal, digital signal transmission.