An LPC vocoder for efficient implementation. - Fumio Sugiyama; Makoto Nakamura (ICASSP, 1981)

Adaptive Lattice Filter LSI for Speech Signal Processing. - Makoto Nakamura; Fumio Sugiyama; Hiroshi Sue; T. Takada (ICC (3), 1984)

A Motion Vector Detector for MUSE Encoder. - Hiroshi Sue; Fumio Sugiyama; Yuichi Ninomiya; Shuji Hirakawa (ICC, 1986)