Method for data transmission via an electric distribution system

Details Method for data transmission via an electric distribution system Method for data transmission via an electric distribution system

1987-01-02

1989-01-24

Crosland, Donnie L.

Communications: electrical

Systems

Selsyn type

340310R, 375 37, H04M 1104

Patent

active

048003638

ABSTRACT:
A method and system for the transmission of data in an electric distribution system between a central controller coupled to a medium-voltage distribution line and at least one terminal coupled to a low-voltage wherein, the transmission of data within the medium-voltage distribution line takes place at a first carrier frequency (f.sub.1), and the data at the first carrier frequency is transposed to data at a lower second carrier frequency (f.sub.21, f.sub.22) for transmission from the medium-voltage distribution line to the low-voltage distribution line by means of a transponder. Due to this transposing of carrier frequencies, the system can be optimized with respect to the different channel properties of the two communication channels.

REFERENCES:
patent: 2894208 (1959-07-01), Crow
patent: 3911415 (1975-10-01), Whyte
patent: 3962547 (1976-06-01), Pattantyus-Abraham
patent: 4065763 (1977-12-01), Whyte et al.
patent: 4481501 (1984-11-01), Perkins
patent: 4535447 (1985-08-01), Rosanes et al.
patent: 4668934 (1987-05-01), Shuey
BBC-Nachrichten, vol. 8/9, 1977, pp. 388-395.

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