A study on the digitization of audio signals for video tape recorder. - Takao Arai; Takaharu Noguchi; Masaharu Kobayashi; Nobutaka Amada; Yasufumi Yumde; Kuniaki Miura (ICASSP, 1986)

Error correction method for R-DAT and its evaluation. - Kenji Hayashi; Takao Arai; Takaharu Noguchi; Hiroo Okamoto; Masaharu Kobayashi (ICASSP, 1986)

General quality maintenance module for motion picture watermarking. - Isao Echizen; Hiroshi Yoshiura; Takao Arai; Hiroyuki Kimura; Toshifumi Takeuchi (IEEE Trans. Consumer Electron., 1999)