Digital DPCM Codec for TV Signals Based on Delta M/DPCM Digital Conversions. - Tatsuo Ishiguro; Toshio Oshima; Hisashi Kaneko (IEEE Trans. Commun., 1974)

Digital television transmission using bandwidth compression techniques. - Hisashi Kaneko; Tatsuo lshiguro (IEEE Commun. Mag., 1980)