Communications: electrical – Continuously variable indicating – With meter reading
Patent
1982-07-28
1986-02-18
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34087003, 34087013, H04Q 1100, G08C 1500
Patent
active
045715874
ABSTRACT:
An interface selector connecting a plurality of field digital devices to a single digital receiving device is disclosed. The interface selector provides a means for the digital receiving device to select which field digital device is to transmit valid data. Circuitry is provided to disable all other field digital devices. Signal lines are provided for the digital receiving device to verify that only one field digital device is transmitting data. Circuitry is also provided to prevent transmission of data if all field digital devices are selected simultaneously.
REFERENCES:
patent: 3706086 (1972-12-01), Farnsworth
patent: 3986169 (1976-10-01), Kobayashi et al.
patent: 4035772 (1977-07-01), Abe et al.
Higginbotham, Jr. James M.
Rapp Kenneth L.
Sunkle Thomas H.
Varasso Eugene C.
Champion Ronald E.
Hudgens Ronald C.
Owens-Corning Fiberglas Corporation
Pacela Patrick P.
Yusko Donald J.
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