Effect of floating-point error reduction with recursive least square for parallel architecture. - Hiroshi Tsubokawa; Hajime Kubota; Shigeo Tsujii (ICASSP, 1990)

A method of digital watermarking by using the frequency masking effect. - Shinya Ito; Hiroshi Tsubokawa (Syst. Comput. Jpn., 2006)