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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 Differential gain ： ウィキペディア英語版 Differential gain Differential gain is a kind of linearity distortion which affects the color saturation in TV broadcasting. == Composite color video signal == Composite color video signal (CCVS) consists of three terms: *Luminance (monochrome) signal *Auxiliary signals (sync pulse and blanking level signals ) *Chrominance, which is actually a subcarrier modulated by chroma information The first two terms are usually called composite video signal (CVS) The modulation technique of the color subcarrier is quadrature amplitude modulation (QUAM or QAM) both in PAL and NTSC systems. The amplitude of the color signal represents the saturation (purity) in both systems. On the other hand, the level of the CVS represents the brightness. So in order to reproduce the original vision in the receiver the ratio between these two pieces of information should be kept constant in the receiver. 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「Differential gain」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.