Inventor
HARASAKI KAZUHIKO
JP4 patents
Patents
4 patentsUS6674753B1Jan 6, 2004
Switching apparatus of time division multiplexing system for controlling data transmission through message memory shared between plural channels, method for data transmission and information storage medium for the method
NEC CORP7 citations71
US8000335B2Aug 16, 2011
Media gateway and control method thereof
NEC CORP3 citations60
US6590908B1Jul 8, 2003
External signal synchronized message signaling apparatus for time division channel system
NEC CORP6 citations60
US7623666B2Nov 24, 2009
Automatic setting of security in communication network system
NEC CORP6 citations58