ヤマジ タカフミ   Yamaji Takafumi
  山路 隆文
   所属   崇城大学  情報学部 情報学科
   崇城大学大学院  工学研究科 応用情報学専攻(博士後期課程)
   崇城大学大学院  工学研究科 応用情報学専攻(博士前期課程)
   職種   教授
取得国 国外
特許番号 USP 7,482,959
取得年月日 2009/01/27
発明者 Sai; Akihide (Kawasaki, JP), Ueno; Takeshi (Kawasaki, JP), Yamaji; Takafumi (Yokohama, JP)
特許名 D/A converter and communication apparatus
特許概要 A D/A converter includes a plurality of current sources configured to be on or off according to input digital data; a constant voltage source configured to apply a constant voltage to the current sources; current supply wirings provided between the constant voltage source and the respective current source, the current supply wirings respectively having equal length from the constant voltage source to the respective current source; ground-side wirings summing up output currents from the plurality of current sources; and output terminals connected to the ground-side wirings, the output terminals outputting analogue data corresponding to the input digital data.