Title:
回線バックアップ方法、通信システム、ネットワーク装置および宅内終端装置
Document Type and Number:
Japanese Patent JP5078783
Kind Code:
B2
Inventors:
Takeo Ichikawa
Takeshi Onizawa
Hirukawa Akinori
Tsutomu Tachida
Hayashi etc.
Takeshi Onizawa
Hirukawa Akinori
Tsutomu Tachida
Hayashi etc.
Application Number:
JP2008176290A
Publication Date:
November 21, 2012
Filing Date:
July 04, 2008
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L12/44; H04M3/00; H04M3/22; H04W12/04; H04W24/04
Domestic Patent References:
| JP3143027Y2 | ||||
| JP2008113128A | ||||
| JP2007135146A | ||||
| JP2005064921A | ||||
| JP200822263A | ||||
| JP2002312155A |
Attorney, Agent or Firm:
Masatake Shiga
Yasuhiko Murayama
Yasuhiko Murayama