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Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered ...
Li-Fi is a derivative of optical wireless communications (OWC) technology, which uses light from light-emitting diodes (LEDs) as a medium to deliver network, mobile, high-speed communication in a similar manner to Wi-Fi. [4] The Li-Fi market was projected to have a compound annual growth rate of 82% from 2013 to 2018 and to be worth over $6 ...
Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in ...
Concerns over Chinese involvement in 5G wireless networks stem from allegations that cellular network equipment sourced from vendors from the People's Republic of China may contain backdoors enabling surveillance by the Chinese government (as part of its intelligence activity internationally) and Chinese laws, such as the Cybersecurity Law of the People's Republic of China, which compel ...
Philips Hue. Philips Hue is a line of color-changing LED lamps and white bulbs which can be controlled wirelessly. The Philips Hue line of bulbs was the first smart bulb of its kind on the market. [3] The lamps are currently created and manufactured by Signify N.V., formerly the Philips Lighting division of Royal Philips N.V. [1][4]
LIFX+. The LIFX+ is a Wi-Fi enabled LED light bulb with millions of colors and many shades of white that also emits infra-red light to assist security cameras in lighting up dark areas. The bulb can be controlled via a Wi-Fi enabled device and is available in A19 and BR30 shapes.
1896: First practical wireless telegraphy systems based on Radio. See: History of radio. 1900: first television displayed only black and white images. Over the next decades, colour television were invented, showing images that were clearer and in full colour. 1914: First North American transcontinental telephone calling; 1927: Television.
The first smart antennas were developed for military communications and intelligence gathering. The growth of cellular telephone in the 1980s attracted interest in commercial applications. The upgrade to digital radio technology in the mobile phone, indoor wireless network, and satellite broadcasting industries created new opportunities for ...