Communicating over power network within a building or other user

Details Communicating over power network within a building or other user Communicating over power network within a building or other user

1974-01-28

1976-06-15

Habecker, Thomas B.

Communications: electrical

Systems

Selsyn type

178 2R, H04M 1104

Patent

active

039640485

ABSTRACT:
Power lines within a building or other user location are connected through a fuse and a filter to an external power grid that supplies power at the usual 50 Hz or 60 Hz. Communications apparatus such as a central computer and a number of typewriters is connected to the power lines within the building at at least two locations and transmits communications signals over the power lines. The communications signals have a frequency different from the frequency of the electrical power supplied by the external power grid and preferably in the audio range. The filter is tuned to pass the electrical power but substantially to block passage of the communications signals. Two important advantages are that the power lines within the building double as communications lines and that the building presents a purely resistive load to the external power grid, so that the grid has an improved power factor.

REFERENCES:
patent: 1607668 (1926-11-01), Fetter
patent: 1874142 (1932-08-01), Tingley
patent: 2048091 (1936-07-01), Affel
patent: 2192061 (1940-02-01), Woodworth
patent: 2481915 (1949-09-01), Edson et al.
patent: 3483546 (1969-12-01), Ausfeld
patent: 3659280 (1972-04-01), Donohoo
patent: 3689886 (1972-09-01), Durkee
patent: 3702460 (1972-11-01), Blose

Affiliated with

Also associated with

Rating

Communicating over power network within a building or other user does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communicating over power network within a building or other user, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communicating over power network within a building or other user will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1698145