Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-12-18
2007-12-18
Nguyen, Chau (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000
Reexamination Certificate
active
10370601
ABSTRACT:
When there is an arrival of a multicast call at a VoIP terminal on a call reception side, an SLIC sends out a ringing signal to a loudspeaker IF. The loudspeaker IF, after receiving the ringing signal, enters into a state in which voice is outputted from a loudspeaker even if a user does not respond. Compressed voice data is taken out of an IP packet received from a network and extended by a DSP to become voice data. Further, the voice data is converted by a CODEC into a voice signal, which is outputted from the loudspeaker.
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“Denwaya ga Kaita IP no Hon”, pp. 312-347.
Allied Telesis K.K.
Hartmann Kenneth R
Hultquist Steven J.
Intellectual Property / Technology Law
Nguyen Chau
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