Multiplexing device capable of quickly transmitting a monitoring

Details Multiplexing device capable of quickly transmitting a monitoring Multiplexing device capable of quickly transmitting a monitoring

1994-03-04

1996-04-23

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 92, 3701101, 370111, H04J 314, H04L 1226

Patent

active

055110657

ABSTRACT:
A multiplexing device in a network system has an address number which is assigned to the multiplexing device. Through a reception line, the multiplexing device receives a reception signal which has a signal frame and carries a command signal in a predetermined area of the signal frame. The command signal carries a command and an address code. The multiplexing device comprises a first detecting section responsive to the command signal for detecting whether or not the address code is coincident with the address number to produce the detection signal when the address code is coincident with the address number and a second detecting section for detecting whether or not a vacant area exists in the signal frame to produce a location signal representative of a location of the vacant area when the vacant area exists in the signal frame. A producing section produces a response signal in response to the command carried by the command signal. A supplying section supplies the response signal to an entering section in response to the detection signal. Responsive to the location signal, the entering section enters the response signal in the vacant area to produce a transmission signal.

REFERENCES:
patent: 4546467 (1985-10-01), Yamamoto
patent: 4751510 (1988-06-01), de Saint Michel et al.
patent: 4835766 (1989-05-01), Arutalei et al.
patent: 5038364 (1991-08-01), Motoori

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