Multiplex communications – Wide area network – Packet switching
Patent
1987-08-28
1988-08-23
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
379204, H04Q 1104
Patent
active
047665920
ABSTRACT:
A method and apparatus for setting up a digital broadcast call from a transmitting station to a group of receiving stations over a public switched network. A time slot interchange unit (TSIU) is used to replicate a signal, received from a transmitting station at an input port of the TSIU, to a group of output ports of the TSIU for transmission to a group of receiving stations. A data base, shared by a group of switching systems of the public switched network, includes data, activated during a preselected period of time, to translate each of two preselected numbers to one of two corresponding internal routing numbers of the switched network for accessing the input port and output ports of the TSIU, respectively. When the transmitting station dials the first preselected number and each of the receiving stations dials the second preselected number, the data base translates these numbers into the corresponding internal routing numbers for setting up a connection from the transmitting and receiving stations to the incoming port and the outgoing ports, respectively, of the TSIU. Advantageously, the broadcast circuit is made available to the broadcast conferees for a period of time limited by the active time of the translations in the data base.
REFERENCES:
patent: 4027098 (1977-05-01), Reisch et al.
patent: 4317007 (1982-02-01), Harrison
patent: 4455455 (1984-06-01), Little
patent: 4479211 (1984-10-01), Bass et al.
patent: 4635251 (1987-01-01), Stanley et al.
Technical Reference, "Special Access Connections to the AT&T Communications to the AT&T Communications Network for New Service Applications", AT&T Pub 41458, Oct. 1985.
Technical Reference, Addendum 2, AT&T Pub 41458A, Feb. 1987.
Baral Elliott
Dharmapalan Jonathan D.
Gordon Travis H.
Richardson Ross M.
American Telephone and Telegraph Company AT&T Bell Laboratories
Chin Wellington
Olms Douglas W.
Ulrich Werner
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