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  2. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Previous generations of wireless security cameras relied on analogue technology; modern wireless cameras use digital technology with usually more secure and interference-free signals. [167] Wireless mesh networks have been used for connection with the other radios in the same group. [ 168 ]

  3. Analog television - Wikipedia

    en.wikipedia.org/wiki/Analog_television

    The rest of the scan line follows, with the signal ranging from 0.3 V (black) to 1 V (white), until the next horizontal or vertical synchronization pulse. The format of the horizontal sync pulse varies. In the 525-line NTSC system it is a 4.85 μs pulse at 0 V. In the 625-line PAL system the pulse is 4.7 μs at 0 V.

  4. Television lines - Wikipedia

    en.wikipedia.org/wiki/Television_lines

    Since analog transmission of video is scan line-based, the same number of horizontal lines is always transmitted. However, several factors impede the ability to display fine detail within a line: The camera or other source of material. The storage and processing of the picture. The transmission of the TV signal e.g. broadcast by radio or by cable.

  5. Smart TV - Wikipedia

    en.wikipedia.org/wiki/Smart_tv

    A smart TV, also known as a connected TV (CTV), is a traditional television set with integrated Internet and interactive Web 2.0 features that allow users to stream music and videos, browse the internet, and view photos.

  6. Television - Wikipedia

    en.wikipedia.org/wiki/Television

    Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission . Television is a mass medium for advertising, entertainment, news, and sports.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Digital television - Wikipedia

    en.wikipedia.org/wiki/Digital_television

    The following table gives allowable signal-to-noise and signal-to-interference ratios for various interference scenarios. This table is a crucial regulatory tool for controlling the placement and power levels of stations. Digital TV is more tolerant of interference than analog TV. [19]