|
UEIT - Universal Electronic Test Chart
UEIT - Universal Electronic Test Chart ( russian: ''УЭИТ - Универсальная электронная испытательная таблица'') is a Soviet/ Russian test card, designed to test TVs operating in the analogue SECAM colour standard. UEIT was developed by N. G. Deryugin and V. A. Minaev at the NII Radio Scientific Research Institute as the successor to the black-and-white ТИТ-0249 test card with the informal name of "Colour Prevention Table" (TCP). This was the second attempt by the Soviets to create a colour test card, since previous efforts undertaken in 1954 (the ТИТ-0154 test card) in conjunction with the early prototype NIIR/SECAM IV colour television system. This system was abandoned in favour or regular SECAM III B, and on the golden jubilee year of the October Revolution in 1967, colour broadcasts debuted in both Moscow and Leningrad (now Saint Petersburg). Experimental broadcasts using the first three prototype versions of the UEIT b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estonian Soviet Socialist Republic
The Estonian SSR,, russian: Эстонская ССР officially the Estonian Soviet Socialist Republic,, russian: Эстонская Советская Социалистическая Республика was an ethnically based administrative subdivision of the former Soviet Union (USSR) covering the occupied and annexed territory of Estonia in 1940–1941 and 1944–1991. The Estonian SSR was nominally established to replace the until then independent Republic of Estonia on 21 July 1940, a month after the 16–17 June 1940 Soviet military invasion and occupation of the country during World War II. After the installation of a Stalinist government which, backed by the occupying Soviet Red Army, declared Estonia a Soviet constituency, the Estonian SSR was subsequently incorporated into the Soviet Union as a "union republic" on 6 August 1940. Estonia was occupied by Nazi Germany in 1941, and administered as a part of ''Reichskommissariat Ostland'' until it was reconquere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raster Scan
A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics, the pattern of image storage and transmission used in most computer bitmap image systems. The word ''wiktionary:raster, raster'' comes from the Latin word ''wiktionary:rastrum, rastrum'' (a rake), which is derived from ''wiktionary:radere, radere'' (to scrape); see also rastrum, an instrument for drawing musical staff lines. The pattern left by the lines of a rake, when drawn straight, resembles the parallel lines of a raster: this line-by-line scanning is what creates a raster. It is a systematic process of covering the area progressively, one line at a time. Although often a great deal faster, it is similar in the most general sense to how one's gaze travels when one reads lines of text. The data to be drawn is stored in an area of memory called the Framebuffer. This memory area holds the values for each pixel on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overscan
Overscan is a behaviour in certain television sets, in which part of the input picture is shown outside of the visible bounds of the screen. It exists because cathode-ray tube (CRT) television sets from the 1930s through to the early 2000s were highly variable in how the video image was positioned within the borders of the screen. It then became common practice to have video signals with black edges around the picture, which the television was meant to discard in this way. Origins Early analog televisions varied in the displayed image because of manufacturing tolerance problems. There were also effects from the early design limitations of power supplies, whose DC voltage was not regulated as well as in later power supplies. This could cause the image size to change with normal variations in the AC line voltage, as well as a process called blooming, where the image size increased slightly when a brighter overall picture was displayed due to the increased electron beam current caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode-ray Tube
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms (oscilloscope), pictures (television set, computer monitor), radar targets, or other phenomena. A CRT on a television set is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer. The term ''cathode ray'' was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. In CRT television sets and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of three electron beams, one for each additive primary color (red, green, and blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raster Graphics
upright=1, The Smiley, smiley face in the top left corner is a raster image. When enlarged, individual pixels appear as squares. Enlarging further, each pixel can be analyzed, with their colors constructed through combination of the values for red, green and blue. In computer graphics and digital photography, a raster graphic represents a two-dimensional picture as a rectangular matrix or grid of square pixels, viewable via a computer display, paper, or other display medium. A raster is technically characterized by the width and height of the image in pixels and by the number of bits per pixel. Raster images are stored in image files with varying dissemination, production, generation, and acquisition formats. The printing and prepress industries know raster graphics as contones (from ''continuous tones''). In contrast, line art is usually implemented as vector graphics in digital systems. Many raster manipulations map directly onto the mathematical formalisms of linear al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode-ray Tube
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms (oscilloscope), pictures (television set, computer monitor), radar targets, or other phenomena. A CRT on a television set is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer. The term ''cathode ray'' was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. In CRT television sets and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of three electron beams, one for each additive primary color (red, green, and blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DVB-T2
DVB-T2 is an abbreviation for "Digital Video Broadcasting – Second Generation Terrestrial"; it is the extension of the television standard DVB-T, issued by the consortium DVB, devised for the broadcast transmission of digital terrestrial television. DVB has been standardized by ETSI. This system transmits compressed digital audio, video, and other data in "physical layer pipes" (PLPs), using OFDM modulation with concatenated channel coding and interleaving. The higher offered bit rate, with respect to its predecessor DVB-T, makes it a system suited for carrying HDTV signals on the terrestrial TV channel (though many broadcasters still use plain DVB-T for this purpose). , it was implemented in broadcasts in the United Kingdom (Freeview HD, eight channels across two multiplexes, plus an extra multiplex in Northern Ireland carrying three SD channels), Italy ( Europa 7 HD, twelve channels), Finland (21 channels, five in HD), Germany (six HD (1080p50) channels, with 40 in planning), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Broadcasting
Digital broadcasting is the practice of using digital signals rather than analogue signals for broadcasting over radio frequency bands. Digital television broadcasting (especially satellite television) is widespread. Digital audio broadcasting is being adopted more slowly for radio broadcasting where it is mainly used in Satellite radio. Digital links, thanks to the use of data compression, generally have greater spectral efficiency than analog links. Content providers can provide more services or a higher-quality signal than was previously available. It is estimated that the share of digital broadcasting increased from 7% of the total amount of broadcast information in 2000, to 25% in 2007. Some countries have completed a Digital television transition. See also *Digital radio *Digital television * ATSC Standards *ATSC tuner *Digital Audio Broadcasting *Digital Radio Mondiale *Digital Video Broadcasting *HD Radio *Satellite radio *Satellite television Satellite television is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakh Soviet Socialist Republic
; kk, Қазақ Советтік Социалистік Республикасы) *1991: Republic of Kazakhstan (russian: Республика Казахстан; kk, Қазақстан Республикасы) , linking_name = the Kazakh Soviet Socialist Republic , year_start = 1936 , event_start = Elevation to a Union Republic , date_start = 5 December , event1 = Jeltoqsan riots , date_event1 = 16 December 1986 , event2 = Sovereignty declared , date_event2 = 25 October 1990 , event3 = Renamed Republic of Kazakhstan , date_event3 = 10 December 1991 , event4 = Independence declared , date_event4 = 16 December 1991 , date_end = 26 December , event_end = Independence recognised , year_end = 1991 , p1 = Kazakh ASSR , s1 = Kazakhstan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukrainian Soviet Socialist Republic
The Ukrainian Soviet Socialist Republic ( uk, Украї́нська Радя́нська Соціалісти́чна Респу́бліка, ; russian: Украи́нская Сове́тская Социалисти́ческая Респу́блика, group=note), abbreviated as the Ukrainian SSR, UkrSSR, or UkSSR, and also known as Soviet Ukraine, was one of the Republics of the Soviet Union, constituent republics of the Soviet Union from 1922 until 1991. In the anthem of the Ukrainian Soviet Socialist Republic, anthem of the Ukrainian SSR, it was referred to simply as ''History of Ukraine, Ukraine''. Under the Soviet One-party state, one-party model, the Ukrainian SSR was governed by the Communist Party of the Soviet Union through its Soviet democracy, republican branch: the Communist Party of Ukraine (Soviet Union), Communist Party of Ukraine. The first iterations of the Ukrainian SSR were established during the Russian Revolution, particularly after the October Revol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Byelorussian Soviet Socialist Republic
The Byelorussian Soviet Socialist Republic (BSSR, or Byelorussian SSR; be, Беларуская Савецкая Сацыялістычная Рэспубліка, Bielaruskaja Savieckaja Sacyjalistyčnaja Respublika; russian: Белорусская Советская Социалистическая Республика, Byelorusskaya Sovyetskaya Sotsialisticheskaya Respublika or russian: links=no, Белорусская ССР, Belorusskaya SSR), also commonly referred to in English as Byelorussia, was a republic of the Soviet Union (USSR). It existed between 1920 and 1922, and from 1922 to 1991 as one of fifteen constituent republics of the USSR, with its own legislation from 1990 to 1991. The republic was ruled by the Communist Party of Byelorussia and was also referred to as Soviet Byelorussia or Soviet Belarus by a number of historians. Other names for Byelorussia included White Russian Soviet Socialist Republic and Belorussian Soviet Socialist Republic. To the wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
