Inventor
FUJIMOTO NAONOBU
JP10 patents
Patents
10 patentsUS4727541AFeb 23, 1988
Hierarchical data transmission system
FUJITSU LTD130 citations96
US4748623AMay 31, 1988
Frame synchronizing circuit
FUJITSU LTD74 citations95
US5327275AJul 5, 1994
Switching system of optical transmission lines for protecting from trouble
FUJITSU LTD58 citations92
US4754456AJun 28, 1988
Multiplex system for replacing a faulty multiplexer output with an alternating pattern signal
FUJITSU LTD28 citations91
US5014271AMay 7, 1991
Pulse insertion circuit
FUJITSU LTD23 citations89
US4811341AMar 7, 1989
Hierarchical data transmission system
FUJITSU LTD20 citations78
US5134609AJul 28, 1992
Drop/insert channel selecting system
FUJITSU LTD11 citations71
US5737373AApr 7, 1998
Control method and apparatus for suppressing jitter
FUJITSU LTD16 citations70
US4885746ADec 5, 1989
Frequency converter
FUJITSU LTD18 citations69
US5406255AApr 11, 1995
Duplexed communication system
FUJITSU LTD5 citations59