Inventor
LIU FENGKUN
US3 patents
Patents
3 patentsUS6771908B2Aug 3, 2004
Fast protection switching by snooping on downstream signals in an optical network
LUCENT TECHNOLOGIES INC74 citations94
US6868232B2Mar 15, 2005
Fast protection switching by snooping on upstream signals in an optical network
LUCENT TECHNOLOGIES INC59 citations93
US6778781B2Aug 17, 2004
Health check algorithm for protection circuit in optical network
LUCENT TECHNOLOGIES INC27 citations89