Inventor
RICE DAVID REAGAN
US5 patents
Patents
5 patentsUS6154469ANov 28, 2000
Voice frequency data enhancement method
LUCENT TECHNOLOGIES INC7 citations67
US6724780B1Apr 20, 2004
Voice frequency data enhancement method
LUCENT TECHNOLOGIES INC8 citations66
US6792080B1Sep 14, 2004
System and method for testing enhanced 911 signalling over a digital loop carrier trunk
LUCENT TECHNOLOGIES INC8 citations62
US5999582ADec 7, 1999
Higher speed digital loop carrier transmission system
LUCENT TECHNOLOGIES INC5 citations59
US5677941AOct 14, 1997
Channel test unit
LUCENT TECHNOLOGIES INC6 citations59