Inventor
KETCHUM RICHARD HARRY
US4 patents
Patents
4 patentsUS6757384B1Jun 29, 2004
Robust double-talk detection and recovery in a system for echo cancelation
LUCENT TECHNOLOGIES INC26 citations90
US6606595B1Aug 12, 2003
HMM-based echo model for noise cancellation avoiding the problem of false triggers
LUCENT TECHNOLOGIES INC31 citations90
US6744885B1Jun 1, 2004
ASR talkoff suppressor
LUCENT TECHNOLOGIES INC13 citations81
US5765125AJun 9, 1998
Detection of tones while minimizing incorrect identification of other sounds as tones
LUCENT TECHNOLOGIES INC18 citations75