Title:
多重化伝送装置
Document Type and Number:
Japanese Patent JP3771238
Kind Code:
B2
Abstract:
A multiplex transmission apparatus according to the present invention compresses and multiplexes transmission signals, such as a voice signal, a facsimile signal and a data modem signal, then transmits them, wherein a signal input from an exchange side is subjected to compression encoding and facsimile demodulation in a plurality of signal process channels in a signal processing section, and thereafter each of the signal process channels generates and transmits a channel check signal to an opposing multiplex transmission apparatus side, which detects the channel check signal and returns a response signal, whereby abnormality in a signal process channel can be detected.
Inventors:
Horie Nobuyoshi
Application Number:
JP2003573840A
Publication Date:
April 26, 2006
Filing Date:
March 04, 2002
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04L12/70; H04L12/28; H04L
Domestic Patent References:
| JP10070557A |
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Hideaki Tazawa
Hamada Hatsune
Konobu Kato
Hideaki Tazawa
Hamada Hatsune