Title:
多重化伝送装置
Document Type and Number:
Japanese Patent JP3588096
Kind Code:
B2
Abstract:
The present invention concerns multiplex transmission equipment that transmits a speech, signal, a facsimile signal, a voice band data signal and similar transmission signals in compressed and multiplexed form. A signaling signal corresponding to the signaling system of each signal transmission system is detected and the operation of an echo canceller during signaling is controlled accordingly. This operation control of the echo canceller permits normal transmission of the signaling signal, and establishes communications between multiplex transmission equipment and the counterpart, allowing signal transmission subsequent to signaling.
Inventors:
Horie Nobuyoshi
Application Number:
JP2002561411A
Publication Date:
November 10, 2004
Filing Date:
January 31, 2001
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04B3/23; H04J3/12; H04J3/16; H04M3/00; H04Q1/44; (IPC1-7): H04J3/00; H04N1/00
Domestic Patent References:
| JP3155227A | ||||
| JP6097905A | ||||
| JP4070228A | ||||
| JP6311073A |
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Konobu Kato