Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1993-05-28
1996-01-16
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
455 541, 455 671, 375356, H04B 100
Patent
active
054856329
ABSTRACT:
Processing of message transmissions from any node in a simulcast multi-site communication system (100) begins when an initiating communication unit requests (400) to transmit a message to one or more network transceivers. After the request has been assigned by a call processing controller, the initiating unit transports (401) a time stamp message to each transceiver via a digital communication network (202). Each transceiver, after receiving the time stamp message, calculates (402) an outbound delay time and transports the outbound delay time to the initiating unit via the digital communication network. From the outbound delay time, the initiating unit calculates (406) a launch time, wherein the launch time accommodates the worst case expected transport delay through the digital communication network. The message to be transmitted and the launch time is transported to each of the transceivers, such that each transceiver simultaneously transmits the message at the launch time.
REFERENCES:
patent: 4850032 (1989-07-01), Freesburg
patent: 5220676 (1993-06-01), LoGalbo et al.
patent: 5280629 (1994-01-01), LoGalbo
Grube Gary W.
Ng Richard
Shaughnessy Mark L.
Eisenzopf Reinhard J.
Markison Timothy W.
Motorola Inc.
To Doris
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