Maritime telecommunications system

Telecommunications – Transmitter and receiver at separate stations

Patent

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Details

455 49, 455 77, 455 73, 34082554, H04B 700, H04Q 700

Patent

active

044919662

ABSTRACT:
A radio system for automated ship board operation includes a plurality of radio receivers and a plurality of radio transmitters. The system includes an ARQ unit, with which one of the receivers and one of the transmitters is associated. A DSELCALL unit is provided, with which another one of the receivers and another one of the transmitters is associated. A VDT unit is provide upon which radio information and messages can be displayed upon reception and composed for transmission. The system includes a computer control which is automatically responsive to control instructions entered into the VDT for selectively associating the receivers and transmitters with the DSELCALL unit and the ARQ unit in accordance with the control instructions, scanning the receiver associated with the DSELCALL unit among preselected DSELCALL frequencies, controlling the transmitter associated with the DSELCALL unit in accordance with the frequency of the scanned receiver, and controlling the operation of the receivers and transmitters associated with the ARQ unit as needed.

REFERENCES:
patent: 3701945 (1972-10-01), Gallant et al.
patent: 4186342 (1980-01-01), Kyle
patent: 4267597 (1981-05-01), Volpi et al.
patent: 4276653 (1981-06-01), Aarsen et al.

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