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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 Cliff effect ： ウィキペディア英語版 Cliff effect In telecommunications, the (digital) cliff effect or brickwall effect describes the sudden loss of digital signal reception. Unlike analog signals, which gradually fade when signal strength decreases or electromagnetic interference or multipath increases, a digital signal provides data which is either perfect or non-existent at the receiving end. It is named for a graph of reception quality versus signal quality, where the digital signal "falls off a cliff" instead of having a gradual rolloff.〔(ITU/ASBU Workshop on Frequency Planning and Digital Transmission: DVB-T Transmission Systems ''(Presentation)'' ), Nov. 23, 2004.〕 This is an example of an EXIT chart. The phenomenon is primarily seen in broadcasting, where signal strength is liable to vary, rather than in recorded media, which generally have a good signal. However, it may be seen in significantly damaged media, which is at the edge of readability. The term is also used in economics for an unrelated phenomenon. == Broadcasting == 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「Cliff effect」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.