A high performance digital voice echo canceller on a single TMS32020. - Christopher R. Cole; Amine Haoui; Peter L. Winship (ICASSP, 1986)

A single-chip 5-V 2400-b/s modem. - Stephen D. Levy; Paul J. Hurst; Peicheng Ju; John M. Huggins; Christopher R. Cole (IEEE J. Solid State Circuits, 1990)