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Network interface apparatus |
Tetsuhiko Hirata, Minoru Koizumi, Masayo Nagano, Yoshiaki Adachi, Hiroshi Wataya |
1998-05-05 |
| 5706422 |
Method of locating fault of communication system |
Hisayuki Maruyama, Jushi Ide, Seiichi Yasumoto, Sadao Mizokawa, Toshio Ishihara +2 more |
1998-01-06 |
| 5497374 |
Data transmission method and system thereof |
Hisayuki Maruyama, Sadao Mizokawa, Seiichi Yasumoto, Hisao Ogawa, Junji Fukuzawa +4 more |
1996-03-05 |
| 5426638 |
Transmission method and system thereof |
Hisayuki Maruyama, Sadao Mizokawa, Seiichi Yasumoto, Hisao Ogawa, Junji Fukuzawa +4 more |
1995-06-20 |
| 4855993 |
Method and apparatus for detecting a fault in a ring network data transmission system |
Takuji Hamada, Masahiro Takahashi, Katsuhiko Yoneda, Toshihiko Uchiyama |
1989-08-08 |
| 4704714 |
Method of detecting recovery from fault in a data transmission system which effects loopback control |
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