Automated home control using existing electrical lines as a comm

Details Automated home control using existing electrical lines as a comm Automated home control using existing electrical lines as a comm

1997-06-12

1999-07-27

Lefkowitz, Edward

Communications: electrical

Systems

Selsyn type

34031002, 34031006, H04M 1104

Patent

active

059297484

ABSTRACT:
A home control system as described herein uses existing electrical power lines in a home for communications. A system includes one or more analog signal sources connected to transmit analog signals using high-bandwidth frequency channels on the electrical power lines, at relatively high bandwidths. The analog signal sources receive control data using a low-bandwidth frequency channel on the same electrical power lines, at a comparatively low bandwidth. One or more analog signal receivers are connected to receive the analog signals using the high-bandwidth frequency channels, and to receive control data using the low-bandwidth frequency channel. A controller is configured to designate one or more source/ receiver groups from the analog signal sources and receivers. The controller is connected to send control data to the source and receiver of each group using the low-bandwidth frequency channel. The control data instructs each group to use a different one of the high-bandwidth frequency channels.

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Thomas E. O'Brien Jr., "Physical and Media Specifications of the CXBus", IEEE Transactions on Consumer Electronics, Aug. 1991. No. 3, pp. 357-366.

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