Communications system

Details Communications system Communications system

1976-09-13

1978-11-28

Pitts, Harold I.

Communications: electrical

Digital comparator systems

340147LP, 340163, H04Q 900

Patent

active

041278453

ABSTRACT:
A telemetry and control system is disclosed which allows a control office to communicate with a plurality of remote field stations over a preferably duplex communication channel. Transmissions, both controls and indications are formatted as messages comprising a number of words. The first word comprises the address of a selected field station to which the controls are, or have been, directed. A variable number of control words or indications and a check word or words conclude the message.

REFERENCES:
patent: 3328758 (1967-06-01), Brothman
patent: 3449717 (1969-06-01), Smith
patent: 3613078 (1971-10-01), Manning
patent: 3753228 (1973-08-01), Nickolas
patent: 3796994 (1974-03-01), Nuss
patent: 3839707 (1974-10-01), Woodward

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