Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1987-07-24
1988-12-06
Lev, Robert
Telephonic communications
Audio message storage, retrieval, or synthesis
379 64, H01M 1100
Patent
active
047900016
ABSTRACT:
The invention provides methods of communication between two locations along a cable where the only metallic conductor available is grounded at numerous points along its length, which methods utilize a "distributed earth referenced carrier system" and wherein a first transceiver is electrically coupled to the metallic conductor at a first location and a second transceiver is electrically coupled to the metallic conductor at a second location.
REFERENCES:
patent: 3129394 (1964-04-01), Long
patent: 4473817 (1984-09-01), Perkins
patent: 4479033 (1984-10-01), Brown
patent: 4504705 (1985-03-01), Pilloud
Connally Douglas R.
Galloway, Jr. George G.
Fails James C.
Industrial Technology Inc.
Lev Robert
Zobal Arthur F.
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