A 5.6 kb/s speech codec using a pulse codebook and improved Viterbi decoding. - Yoshiaki Asakawa; Hidetoshi Sekine; Makoto Takashima; Nobuyoshi Ishikawa; Toshiyuki Matsuda; Tom Okamoto; Ryujiro Muramatsu (ICASSP (1), 1994)

SAR ADC that is configurable to optimize yield. - Tomohiko Ogawa; Haruo Kobayashi 001; Yohei Tan; Satoshi Ito; Satoshi Uemori; Nobukazu Takai; Kiichi Niitsu; Takahiro J. Yamaguchi; Tatsuji Matsuura; Nobuyoshi Ishikawa (APCCAS, 2010)

ADC linearity test signal generation algorithm. - Satoshi Uemori; Takahiro J. Yamaguchi; Satoshi Ito; Yohei Tan; Haruo Kobayashi 001; Nobukazu Takai; Kiichi Niitsu; Nobuyoshi Ishikawa (APCCAS, 2010)