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La mira o carta de barres de color és un senyal de vídeo que s'utilitza en la producció televisiva per a la comprovació de l'estat dels sistemes de producció, que generen, tracten i transmeten el senyal de televisió.
, La mira o carta de barras de color es una señal de vídeo que se utiliza en la producción de televisión para la comprobación del estado de los sistemas de producción, que generan, tratan y transmiten la señal de televisión.
, Il segnale delle barre colore è utilizzato nella come riferimento e test di ogni apparato che genera, elabora o trasmette segnali. Osservato strumentalmente, è un utile mezzo di diagnostica.
, 彩条信号（Color bars）是电视检验图的一种，用于电视信号测试。
, SMPTE color bars are a television test pat … SMPTE color bars are a television test pattern used where the NTSC video standard is utilized, including countries in North America. The Society of Motion Picture and Television Engineers (SMPTE) refers to the pattern as Engineering Guideline (EG) 1-1990. Its components are a known standard, and created by test pattern generators. Comparing it as received to the known standard gives video engineers an indication of how an NTSC video signal has been altered by recording or transmission and what adjustments must be made to bring it back to specification. It is also used for setting a television monitor or receiver to reproduce NTSC chrominance and luminance information correctly. A precursor to the SMPTE test pattern was conceived by Norbert D. Larky (1927–2018) and David D. Holmes (1926–2006) of RCA Laboratories and first published in RCA Licensee Bulletin LB-819 on February 7, 1951. U.S. patent 2,742,525 Color Test Pattern Generator (now expired) was awarded on April 17, 1956, to Larky and Holmes. Later, the EIA published a standard, RS-189A, which in 1976 became EIA-189A, which described a Standard Color Bar Signal, intended for use as a test signal for adjustment of color monitors, adjustment of encoders, and rapid checks of color television transmission systems. In 1977, A. A. Goldberg, of the CBS Technology Center, described an improved color bar test signal developed at the center by Hank Mahler that was then submitted to the SMPTE TV Video Technology Committee for consideration as a SMPTE recommended practice. This improved test signal was published as the standard SMPTE ECR 1-1978. Its development by CBS was awarded a Technology & Engineering Emmy Award in 2002. CBS did not file a patent application on the test signal, thereby putting it into the public domain for general use by the industry. An extended version of the SMPTE color bars, SMPTE RP 219:2002 was introduced to test HDTV signals (see subsection). Although color bars were originally designed to calibrate analog NTSC equipment, they remain widely used in transmission and within modern digital television facilities. In the current context color bars are used to maintain accurate chroma and luminance levels in CRT, LCD, LED, plasma, and other video displays, as well as duplication, satellite, fiber-optic and microwave transmission, and television and webcast equipment. In a survey of the top standards of the organizations' first 100 years, SMPTE EG-1 was voted as the 5th-most important SMPTE standard. as the 5th-most important SMPTE standard.
, As barras de cor ou color bars são um sina … As barras de cor ou color bars são um sinal de vídeo que se utiliza na produção de programas de televisão para a comprovação do estado dos sistemas de produção, que geram, tratam e transmitem o sinal de televisão. Elas costumam aparecer "no ar" (sempre acompanhadas por um som agudo e senoidal, algumas vezes silenciosas) enquanto as emissoras de televisão realizam manutenções técnicas em seus equipamentos, o que geralmente acontece durante a madrugada, por ser um horário de baixa audiência. Isso ocorreu com muita frequência até o final dos anos 90, mas até hoje em alguns locais pelo Brasil ainda é comum, especialmente no interior. ainda é comum, especialmente no interior.
, カラーバー（英語: color bars）は、複数の色を表示できる映像信号システムを評価するための基準となる信号および、その信号によって表示される画面自体の名称である。表示装置上では色のついた棒状の領域として表示されるため、この名称で呼ばれる。
, Les barres de couleur SMPTE sont une mire … Les barres de couleur SMPTE sont une mire télévisuelle utilisée par le standard vidéo NTSC, notamment en Amérique du Nord. La Society of Motion Picture and Television Engineers (SMPTE) y réfère en tant que l'Engineering Guideline EG 1-1990. Elles permettent de calibrer la signalisation vidéo NTSC ainsi que pour ajuster un moniteur ou récepteur télévisé au niveau de la chrominance NTSC ainsi que de la luminance. La mire a été conçue par et des (en) et est publiée pour la première fois dans le RCA Licensee Bulletin LB-819 le 7 février 1951 (U.S. patent 2,742,525). Anciennement catégorisée par le SMPTE sous l'appellation ECR 1-1978, son développement est récompensé d'un Emmy Awards en 2001-2002. Une version étendue de la mire est développée par la Japanese Association of Radio Industry and Businesses. Elle est nommée ARIB STD-B28 et est standardisée sous l'appellation SMPTE RP 219:2002. La High-Definition, Standard-Definition Compatible Color Bar Signal est ainsi introduite pour tester les signaux HDTV en format 16:9, signaux qui peuvent être convertis en SDTV de format 4:3 ou 16:9. Le SMPTE EG-1 est classé cinquième lors d'un sondage sur les principaux standards utilisés par les organisations au cours des 100 premières années. Les deux versions de la mire (EG 1-1990 et RP 219:2002) sont sous copyright de SMPTE[réf. souhaitée].t sous copyright de SMPTE[réf. souhaitée].
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Les barres de couleur SMPTE sont une mire … Les barres de couleur SMPTE sont une mire télévisuelle utilisée par le standard vidéo NTSC, notamment en Amérique du Nord. La Society of Motion Picture and Television Engineers (SMPTE) y réfère en tant que l'Engineering Guideline EG 1-1990. Elles permettent de calibrer la signalisation vidéo NTSC ainsi que pour ajuster un moniteur ou récepteur télévisé au niveau de la chrominance NTSC ainsi que de la luminance.hrominance NTSC ainsi que de la luminance.
, カラーバー（英語: color bars）は、複数の色を表示できる映像信号システムを評価するための基準となる信号および、その信号によって表示される画面自体の名称である。表示装置上では色のついた棒状の領域として表示されるため、この名称で呼ばれる。
, La mira o carta de barras de color es una señal de vídeo que se utiliza en la producción de televisión para la comprobación del estado de los sistemas de producción, que generan, tratan y transmiten la señal de televisión.
, La mira o carta de barres de color és un senyal de vídeo que s'utilitza en la producció televisiva per a la comprovació de l'estat dels sistemes de producció, que generen, tracten i transmeten el senyal de televisió.
, As barras de cor ou color bars são um sina … As barras de cor ou color bars são um sinal de vídeo que se utiliza na produção de programas de televisão para a comprovação do estado dos sistemas de produção, que geram, tratam e transmitem o sinal de televisão. Elas costumam aparecer "no ar" (sempre acompanhadas por um som agudo e senoidal, algumas vezes silenciosas) enquanto as emissoras de televisão realizam manutenções técnicas em seus equipamentos, o que geralmente acontece durante a madrugada, por ser um horário de baixa audiência.da, por ser um horário de baixa audiência.
, 彩条信号（Color bars）是电视检验图的一种，用于电视信号测试。
, Il segnale delle barre colore è utilizzato nella come riferimento e test di ogni apparato che genera, elabora o trasmette segnali. Osservato strumentalmente, è un utile mezzo di diagnostica.
, SMPTE color bars are a television test pat … SMPTE color bars are a television test pattern used where the NTSC video standard is utilized, including countries in North America. The Society of Motion Picture and Television Engineers (SMPTE) refers to the pattern as Engineering Guideline (EG) 1-1990. Its components are a known standard, and created by test pattern generators. Comparing it as received to the known standard gives video engineers an indication of how an NTSC video signal has been altered by recording or transmission and what adjustments must be made to bring it back to specification. It is also used for setting a television monitor or receiver to reproduce NTSC chrominance and luminance information correctly.nance and luminance information correctly.
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カラーバー
, Barras de color
, Barras de cor
, Barres de color
, SMPTE color bars
, Barre colore
, 彩条信号
, Barres de couleur SMPTE
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