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 7,471,939
取得年月日 2008/12/30
発明者 Yamaji; Takafumi (Yokohama, JP), Okuni; Hidenori (Kawasaki, JP)
特許名 Multiplier and radio communication apparatus using the same
特許概要 A multiplier includes a first input terminal which receives a modulated signal, three second input terminals which receive first, second, and third local signals respectively, the first, second, and third local signals having a phase difference of 120.degree. from one another, a multiplication unit configured to multiply the modulated signal by each of the first, second, and third local signals, and output first, second, and third multiplied output signals, and three output terminals from which the first, second, and third multiplied output signals are derived, respectively.