WebHigh-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite, cable and IPTV.HDTV has quickly become the …

WebHistory. The first electronic scanning format, 405 lines, was the first high definition television system, since the mechanical systems it replaced had far fewer. From 1939, Europe and the US tried 605 and 441 lines until, in 1941, the FCC mandated 525 for the US. In wartime France, René Barthélemy tested higher resolutions, up to 1,042. In late 1949, …

WebRec. 709, also known as Rec.709, BT.709, and ITU 709, is a standard developed by ITU-R for image encoding and signal characteristics of high-definition television.. The most recent version is BT.709-6 released in 2015. BT.709-6 defines the Picture characteristics as having a aspect ratio of 16:9, 1080 active lines per picture, 1920 samples per line, and a …

WebHigh-definition television (HD or HDTV) describes a television system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since 1936; in more recent times, it refers to the generation following standard-definition television (SDTV), often abbreviated to HDTV or HD-TV.It is the …

WebThe National Television System Committee was established in 1940 by the United States Federal Communications Commission (FCC) to resolve the conflicts between companies over the introduction of a nationwide analog television system in the United States. In March 1941, the committee issued a technical standard for black-and-white television …

WebA television advertisement (also called a television commercial, TV commercial, commercial, television spot, TV spot, advert, TV advert or simply an ad) is a span of television programming produced and paid for by an organization.It conveys a message promoting, and aiming to market, a product or service. Advertisers and marketers may …

WebMobile High-Definition Link (MHL) is an industry standard for a mobile audio/video interface that allows the connection of smartphones, tablets, and other portable consumer electronics devices to high-definition televisions (HDTVs), audio receivers, and projectors. The standard was designed to share existing mobile device connectors, such as Micro …

WebLa définition d’écran est le nombre de points ou pixels (de l'anglais picture elements) que peut afficher un écran.La définition est le produit du nombre de points selon l’horizontale par le nombre de points selon la verticale de l’affichage. La définition est couramment confondue, à tort, avec la résolution d'écran (la résolution prend en compte la taille de …

WebTelevision, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission.Television is a mass medium for advertising, entertainment, news, and sports.. Television became available in crude experimental forms in the late 1920s, …

WebThe graphics display resolution is the width and height dimension of an electronic visual display device, measured in pixels.This information is used for electronic devices such as a computer monitor.Certain combinations of width and height are standardized (e.g. by VESA) and typically given a name and an initialism that is descriptive of its dimensions.

WebStandard (metrology), an object that bears a defined relationship to a unit of measure used for calibration of measuring devices Standard (timber unit), an obsolete measure of timber used in trade Breed standard (also called bench standard), in animal fancy and animal husbandry; BioCompute Standard, a standard for next generation sequencing; De facto …

WebTerrestrial television or over-the-air television (OTA) is a type of television broadcasting in which the signal transmission occurs via radio waves from the terrestrial (Earth-based) transmitter of a TV station to a TV receiver having an antenna.The term terrestrial is more common in Europe and Latin America, while in Canada and the United States it is called …

WebPhase Alternating Line (PAL) is a colour encoding system for analogue television.It was one of three major analogue colour television standards, the others being NTSC and SECAM.In most countries it was broadcast at 625 lines, 50 fields (25 frames) per second, and associated with CCIR analogue broadcast television systems B, D, G, H, I or K.The …

WebUltra High Definition Television (UHDTV), Ultra HDTV, Ultra High Definition Video (UHDV) – jedna z pierwotnie używanych nazw standardu znanego w Japonii jako Super Hi-Vision – opracowanego przez telewizje publiczne Japonii (), Wielkiej Brytanii i Włoch ().Jest to standard wyświetlania obrazu telewizyjnego, który posiada rozdzielczość 7680x4320 …