Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1996-12-13
1998-11-03
Pham, Chi H.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370433, 370463, 370474, H04Q 1104
Patent
active
058319816
ABSTRACT:
In a fixed-length speech signal communication system, in a transmitting mode, background noise components are detected from a transmitting signal, and a silent signal is generated when the duration of the detected background noise components is longer than a first value. Also, when the silent signal is not generated, fixed-length cells are assembled for the transmitting signal. In a receiving mode, received fixed-length cells are reassembled to recover receiving signals. When fixed-length cells have not been received for a time equal to a second value, a background noise insertion signal is generated. As a result, when the background noise insertion signal is generated, so that background noise components are generated and transmitted instead of the receiving signals.
REFERENCES:
patent: 5121385 (1992-06-01), Tominaga et al.
patent: 5436899 (1995-07-01), Fujino et al.
patent: 5649055 (1997-07-01), Gupta et al.
Kawabata Hiromi
Tanimura Takuji
NEC Corporation
Ngo Ricky
Pham Chi H.
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