AD Conversion

Japanese: A-D 変換 - えーでぃーへんかん
AD Conversion

...the process of receiving an analog voltage signal that is a function of continuous change and sending out a corresponding discretely coded digital information signal. It is often abbreviated as A-D conversion. The inverse function of this, that is, receiving digital code information and generating a voltage signal proportional to the value represented by this code, is called digital-to-analog conversion (D-A conversion).

From [Input/Output Device]

…Inside a computer, these are represented as digital quantities, that is, binary numbers with a finite number of digits. Therefore, when these are input, AD conversion (analog-to-digital conversion) is required, and when they are output, DA conversion (digital-to-analog conversion) is required (see Figure 1). A mouse is also an analog input device that inputs an analog quantity, the amount of movement. …

*Some of the terminology that refers to "AD conversion" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…連続変化量の関数であるアナログ電圧信号を受け,これに対応する離散的に符号化されたディジタル情報信号を送出すること。A‐D変換と略称されることが多い。この逆機能,すなわちディジタル符号情報を受けてこの符号の表す数値に比例する電圧信号を発生するものを,ディジタル‐アナログ変換(D‐A変換)と呼ぶ。…

【入出力装置】より

…コンピューター内部では,これらをディジタル量,つまり有限桁の二進数で表す。したがって,これらを入力するときにはA-D変換(アナログ-ディジタル変換)が必要であり,これらを出力するときにはD-A変換(ディジタル-アナログ変換)が必要である(図1参照)。マウスも移動量というアナログ量を入力するアナログ入力装置である。…

※「A-D 変換」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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