Simple communication system capable of message broadcasting

Details Simple communication system capable of message broadcasting Simple communication system capable of message broadcasting

1994-06-24

1996-05-07

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082547, G05B 2302

Patent

active

055150349

ABSTRACT:
In a communication system for a plurality of terminals, a terminal control unit is connected between a call control unit and the terminals. The terminal control unit is associated with a memory unit having a group supervisory table for storing a relationship between group numbers and the terminals belonging thereto for message broadcasting. When a destination call message is supplied from the call control unit to the terminal control unit, a group number is analyzed from the destination call message. Then, a number of the terminals belonging to the analyzed group number are selected in accordance with the group supervisory table, and message broadcasting is performed upon the selected terminals.

REFERENCES:
patent: 4131881 (1978-12-01), Robinson
patent: 4922524 (1990-05-01), Baba et al.
patent: 4991197 (1991-02-01), Morris
patent: 5008926 (1991-04-01), Misholi
patent: 5257112 (1993-10-01), Okada
patent: 5311570 (1994-05-01), Grimes et al.
patent: 5315642 (1994-05-01), Fernandez

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