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41 receiving station
1. приёмная радиостанция; радиоприёмный центр2. ж. -д. станция назначения -
42 truck station
воен. автомобильная радиостанция -
43 broadcast station
English-Russian big polytechnic dictionary > broadcast station
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44 Goldmark, Peter Carl
[br]b. 2 December 1906 Budapest, Hungaryd. 7 December 1977 Westchester Co., New York, USA[br]Austro-Hungarian engineer who developed the first commercial colour television system and the long-playing record.[br]After education in Hungary and a period as an assistant at the Technische Hochschule, Berlin, Goldmark moved to England, where he joined Pye of Cambridge and worked on an experimental thirty-line television system using a cathode ray tube (CRT) for the display. In 1936 he moved to the USA to work at Columbia Broadcasting Laboratories. There, with monochrome television based on the CRT virtually a practical proposition, he devoted his efforts to finding a way of producing colour TV images: in 1940 he gave his first demonstration of a working system. There then followed a series of experimental field-sequential colour TV systems based on segmented red, green and blue colour wheels and drums, where the problem was to find an acceptable compromise between bandwidth, resolution, colour flicker and colour-image breakup. Eventually he arrived at a system using a colour wheel in combination with a CRT containing a panchromatic phosphor screen, with a scanned raster of 405 lines and a primary colour rate of 144 fields per second. Despite the fact that the receivers were bulky, gave relatively poor, dim pictures and used standards totally incompatible with the existing 525-line, sixty fields per second interlaced monochrome (black and white) system, in 1950 the Federal Communications Commission (FCC), anxious to encourage postwar revival of the industry, authorized the system for public broadcasting. Within eighteen months, however, bowing to pressure from the remainder of the industry, which had formed its own National Television Systems Committee (NTSC) to develop a much more satisfactory, fully compatible system based on the RCA three-gun shadowmask CRT, the FCC withdrew its approval.While all this was going on, Goldmark had also been working on ideas for overcoming the poor reproduction, noise quality, short playing-time (about four minutes) and limited robustness and life of the long-established 78 rpm 12 in. (30 cm) diameter shellac gramophone record. The recent availability of a new, more robust, plastic material, vinyl, which had a lower surface noise, enabled him in 1948 to reduce the groove width some three times to 0.003 in. (0.0762 mm), use a more lightly loaded synthetic sapphire stylus and crystal transducer with improved performance, and reduce the turntable speed to 33 1/3 rpm, to give thirty minutes of high-quality music per side. This successful development soon led to the availability of stereophonic recordings, based on the ideas of Alan Blumlein at EMI in the 1930s.In 1950 Goldmark became a vice-president of CBS, but he still found time to develop a scan conversion system for relaying television pictures to Earth from the Lunar Orbiter spacecraft. He also almost brought to the market a domestic electronic video recorder (EVR) system based on the thermal distortion of plastic film by separate luminance and coded colour signals, but this was overtaken by the video cassette recorder (VCR) system, which uses magnetic tape.[br]Principal Honours and DistinctionsInstitute of Electrical and Electronics Engineers Morris N.Liebmann Award 1945. Institute of Electrical and Electronics Engineers Vladimir K. Zworykin Award 1961.Bibliography1951, with J.W.Christensen and J.J.Reeves, "Colour television. USA Standard", Proceedings of the Institute of Radio Engineers 39: 1,288 (describes the development and standards for the short-lived field-sequential colour TV standard).1949, with R.Snepvangers and W.S.Bachman, "The Columbia long-playing microgroove recording system", Proceedings of the Institute of Radio Engineers 37:923 (outlines the invention of the long-playing record).Further ReadingE.W.Herold, 1976, "A history of colour television displays", Proceedings of the Institute of Electrical and Electronics Engineers 64:1,331.See also: Baird, John LogieKF -
45 трансляция
* * *трансля́ция ж.1. радио тлв. broadcast(ing)2. телегр. repeater3. вчт. compilationзака́нчивать трансля́цию — compilationотменя́ть трансля́цию — reset compilationпрекраща́ть трансля́цию — terminate compilation4. ( проводная от радиоузла) wired-radio relay service5. ( параллельный перенос) физ. translationдвусторо́нняя трансля́ция — two-way repeaterду́плексная трансля́ция — duplex repeaterоконе́чная трансля́ция — terminal repeaterполуду́плексная трансля́ция — half-duplex repeaterпроста́я трансля́ция — non-regenerative repeaterрегенерати́вная трансля́ция — regeneratorси́мплексная трансля́ция — single-line back-and-forth repeater* * * -
46 sounder
3) тлг клопфер, телеграфный аппарат для приёма на слух знаков кода Морзе4) зонд6) эхолот•- depth sounder
- double-current sounder
- double-plate sounder
- echo sounder
- echodepth sounder
- fixed-frequency sounder
- HF sounder
- high-frequency sounder
- Morse sounder
- oblique sounder
- oblique-incidence sounder
- radar sounder
- radio sounder
- relaying sounder
- sonic depth sounder
- swept-frequency sounder
- telegraph sounder
- topside sounder -
47 sounder
3) тлг. клопфер, телеграфный аппарат для приёма на слух знаков кода Морзе4) зонд6) эхолот•- depth sounder
- double-current sounder
- double-plate sounder
- echo depth sounder
- echo sounder
- fixed-frequency sounder
- HF sounder
- high-frequency sounder
- Morse sounder
- oblique sounder
- oblique-incidence sounder
- radar sounder
- radio sounder
- relaying sounder
- sonic depth sounder
- swept-frequency sounder
- telegraph sounder
- topside sounderThe New English-Russian Dictionary of Radio-electronics > sounder
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48 трансляция
1. ж. тлв. радио broadcast2. ж. телегр. repeater3. ж. вчт. compilation4. ж. wired-radio relay service5. ж. физ. translationтрансляция "один к одному" — one-for-one translation
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49 установит телефонную связь
Русско-английский словарь по информационным технологиям > установит телефонную связь
См. также в других словарях:
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