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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Television systems before 1940 ： ウィキペディア英語版 Television systems before 1940 A number of experimental and broadcast pre World War II television systems were tested. The first ones were mechanical based (mechanical television) and of very low resolution, sometimes with no sound. Later TV systems were electronic (electronic television). == France == * France 1930 (mechanical): 30 lines, 12.5 frame/s * France 1932 (mechanical): 60 lines, 12.5 frame/s, 3:7 vertical aspect ratio, vertical scanning ~35x60 pixels per frame, sound, live images * France 1935-1936: 375 lines * France 1935-1939 (electronic): 455 lines * France 1943-1956 (electronic): 441 lines 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Television systems before 1940」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.