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[1] [2] [3] HDcctv uses the SMPTE HD-SDI protocol and can transmit 720p or 1080p video over at least 100 m of RG59 cable. The HDcctv Alliance is a non-profit, global consortium that develops and promotes the HDcctv standard. Advantages over IP video surveillance are claimed to include low latency and zero configuration.
Wireless security cameras are becoming more and more popular in the consumer market, being a cost-effective way to have a comprehensive surveillance system installed in a home or business for an often less expensive price. Wireless cameras are also ideal for people renting homes or apartments.
In 1997, 3,100 CCTV systems were installed in public housing and residential areas in New York City. [27] Experiments in the UK during the 1970s and 1980s, including outdoor CCTV in Bournemouth in 1985, led to several larger trial programs later that decade.
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Because network cameras are embedded devices, and do not need to output an analogue signal, resolutions higher than closed-circuit television 'CCTV' analogue cameras are possible. A typical analogue CCTV camera has a PAL (768x576 pixels) or NTSC (720x480 pixels), whereas network cameras may have VGA (640x480 pixels), SVGA (800x600 pixels) or ...
In November 2013, Ring was founded as Doorbot by Jamie Siminoff. Doorbot was crowdfunded via Christie Street, and raised US$ 364,000, more than the $250,000 requested. [1] [4] [5] Siminoff's team envisioned the product's concept as an "alarm system literally turned inside out" in comparison to other security systems, describing it as a "pre-crime" system. [6]
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