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The term closed indicates that the captions are not visible until activated by the viewer, usually via the remote control or menu option. On the other hand, the terms open, burned-in, baked on, hard-coded, or simply hard indicate that the captions are visible to all viewers as they are embedded in the video.
The "CC in a TV" symbol Jack Foley created, while senior graphic designer at Boston public broadcaster WGBH that invented captioning for television, is public domain so that anyone who captions TV programs can use it. Closed captioning is the American term for closed subtitles specifically intended for people who are deaf or hard-of-hearing.
CTA -708 (formerly EIA-708 and CEA-708) is the standard for closed captioning for ATSC digital television (DTV) viewing in the United States and Canada. It was developed by the Consumer Electronics sector of the Electronic Industries Alliance, which became Consumer Technology Association . Unlike Run-length encoding DVB and DVD subtitles, CTA ...
EIA-608, also known as "line 21 captions" and "CEA-608", [ 1] was once the standard for closed captioning for NTSC TV broadcasts in the United States, Canada and Mexico. It was developed by the Electronic Industries Alliance and required by law to be implemented in most television receivers made in the United States.
The National Captioning Institute, Inc. (NCI) is a 501 (c) (3) nonprofit organization [3] that provides real-time and off-line closed captioning, subtitling and translation, described video, web captioning, and Spanish captioning for television and films. Created in 1979 [5] and headquartered in Chantilly, Virginia, the organization was the ...
Telemundo provides English subtitles via closed captioning primarily on weekdays from 7:00 to 11:00 p.m. Eastern and Pacific Time, during the network's prime time lineup. The subtitles are transmitted over the CC3 caption channel in standard definition and the CS2 caption channel available on most digital tuners in high definition. The network ...
Teletext was created in the United Kingdom in the early 1970s by John Adams, Philips' lead designer for video display units to provide closed captioning to television shows for the hearing impaired. [6] Public teletext information services were introduced by major broadcasters in the UK, [7] starting with the BBC's Ceefax service in 1974. [8]
Closed-circuit television (CCTV), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or ...