The New Encyclopaedia Britannica: Macropaedia (19 v.)Encyclopaedia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 108
... picture transmission and reception BASIC CONSIDERATIONS The quality and quantity of television service are limited fundamentally by the rate at which it is feasible to trans- mit the picture information over the television channel . As ...
... picture transmission and reception BASIC CONSIDERATIONS The quality and quantity of television service are limited fundamentally by the rate at which it is feasible to trans- mit the picture information over the television channel . As ...
Page 114
... picture. camera 54-72 megahertz ; 5 and 6 , 76-88 megahertz ; 7 through 13 , 174–216 megahertz ; and the UHF ( ultrahigh - frequen- cy ) channels , 14 through 83 , 470-890 megahertz . These channels are allocated to communities according ...
... picture. camera 54-72 megahertz ; 5 and 6 , 76-88 megahertz ; 7 through 13 , 174–216 megahertz ; and the UHF ( ultrahigh - frequen- cy ) channels , 14 through 83 , 470-890 megahertz . These channels are allocated to communities according ...
Page 115
... picture signal to the picture tube , where it controls the brightness of the scan- ning spot . Simultaneously , the picture signal wave form is passed to a circuit ( the synchronizing signal separator ) that selects the blank periods in ...
... picture signal to the picture tube , where it controls the brightness of the scan- ning spot . Simultaneously , the picture signal wave form is passed to a circuit ( the synchronizing signal separator ) that selects the blank periods in ...
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19th century actors adiabatic process applied audience broadcasting cable called camera carpels carrier centimetres centre channels chemical chrominance circuit classical colour commedia dell'arte communications court device drama drugs early effect eigenvalues electrical electrons energy engine entropy Eocene equation Europe fabrics fibres Figure film frequency Germany Greek heat important increased industry loom machine material mechanical megahertz ment metal method metres millimetres Miocene modern modulation Oligocene operation Paleocene pattern percent performance picture play pressure production radio real tennis receiver religious Roman scanning signal space species stable equilibrium stage steam teachers teaching techniques tektites telegraph telephone teleprinter telescope television temperature tennis tetraodontiforms textile textual criticism Thailand theatre theatrical thermodynamics thermoelectric thermoreceptors tion transmission transmitted tube ture United usually warp weave weft wire yarns