HD-TVI AND AHD BECOME POPULAR HD-OVER-COAX SOLUTIONS Among the latest analog high definition technologies, the HD-TVI and AHD are quite new. HD-TVI was developed by USA company - Techpoint. This new analog HD technology has been deployed into Hikvision's analog security products. Hikvision takes advantage of HD-TVI technology in order to against Dahua HD-CVI. At IFSEC 2015 London (Global security exhibition), Techpoint introduced its HD-TVI 2.0 version, now the HD-TVI supports 720p 30/25fps, 720p 60/50fps, 1080p 30/25fps high definition video transmission. Furthermore, HD-TVI receiver is back compatible with 960H format, which means the HD-TVI DVR can receive analog signals from analog 960H video cameras. AHD stands for analog high definition, AHD is based on AHD standard which developed by Korean chip-set manufacturer - NextChip. AHD is able to deliver uncompressed 720p / 1080p high definition video over Cat 75-3 coaxial cable, and transmission distance up to 500 meters. This technology breakthrough the current HD video transmission limitation (<= 100 meters), it can achieve low-cost, long range, no video latency, high efficient megapixel resolution video transmission. Both HD-TVI and AHD are open standard, which allows hundreds of manufacturers develop analog security cameras based on these technologies. Additionally, compared with other technologies, the cost for HD-TVI and AHD is extreme low, end-users can enjoy the analog high definition video surveillance with same price as traditional analog camera.
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