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 7,532,144
取得年月日 2009/05/12
発明者 Yamaji; Takafumi (Yokohama, JP), Ueno; Takeshi (Kawasaki, JP)
特許名 AD converter and radio receiver
特許概要 Disclosed is an AD converter including: a first conversion stage including a quantizing part to generate m parallel pieces of quantized signals from m pieces of input analog signals representing n-dimensional vectors (n.ltoreq.m.ltoreq.2n), a decoding part to generate m pieces of decoded analog signals from the m parallel pieces of quantized signals, and a residual amplifying part to output m pieces of amplified residual signals by multiplying respective differences between each of the m pieces of analog signals and each of the m pieces of decoded analog signals; a second conversion stage including a quantizing part to generate m parallel pieces of quantized signals from the m pieces of amplified residual signals; and a synthesizing part to generate m parallel pieces of digital signals by synthesizing each of the quantized signals in the first conversion stage and in the second conversion stage at each parallel position.