Apparatus and method for transmitting and receiving signals...

Details Apparatus and method for transmitting and receiving signals... Apparatus and method for transmitting and receiving signals...

2005-01-25

2005-01-25

Nguyen, Chau (Department: 2667)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S466000

Reexamination Certificate

active

06847636

ABSTRACT:
An apparatus and method for transmitting and receiving a signal between different networks, each network having at least one terminal and a different source coding method and transmission rate from those of the other network. The apparatus for transmitting and receiving a signal between different networks includes: a system controller, responsive to a call setup request signal, for inquiring a second coding method used for a second terminal in a second network and informing a first terminal of the second coding method; a data encoder for encoding data signals from the first terminal in accordance with the second coding method; a matcher for changing a transmission rate and a data format of encoded data signals to a transmission rate used in the second network; and a decoder for decoding data signals from the matcher. The apparatus and method for transmitting and receiving a signal between different networks in accordance with the present invention prevents transmission data signals from being transcoded, Therefore, complicated operations and attenuation from the transcoding of the transmission data signals are not needed, such that the quality of communication becomes considerably high.

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patent: 63-070640 (1988-03-01), None
patent: 10-1997-0081257 (1999-06-01), None

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