Attachment for remote control of a plurality of signal monitors

Details Attachment for remote control of a plurality of signal monitors Attachment for remote control of a plurality of signal monitors

1986-11-21

1987-07-21

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

307112, 3408255, 379457, H04Q 100

Patent

active

046821643

ABSTRACT:
An attachment for remote control of a plurality of data stations remote from each other and from a central controller having simple and convenient arrangements to put all the burden of powering and most switching of the attachment in the central controller.
A minimum number of transmission lines are used, yet it allows two-way data transmissions as well as a request-to-receive signal from any single remote data station to any of the remaining data stations, at the desire of the operator of the central controller.

REFERENCES:
patent: 2558707 (1951-06-01), Janssen et al.
patent: 3337841 (1967-08-01), Wainwright et al.
patent: 3453749 (1969-07-01), Snedeker
patent: 3646278 (1972-02-01), Panizzi
patent: 3761630 (1973-09-01), Silitch
patent: 4225753 (1980-09-01), Chown et al.

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