H - Electricity – 04 – B
Patent
H - Electricity
04
B
340/79
H04B 3/54 (2006.01)
Patent
CA 1195747
Abstract Disclosed is a system of transmitting and receiving control signals for various types of devices using the existing power wiring in houses and buildings. The transmitter section of the power wiring transmission system is provided with a cir- cuit in which the output of a sine wave oscillator is fed to an emitter-follower through a photocoupler and this output is then fed to the power distribution line through a series resonance circuit after stepping down with a transformer; and the receiving section is provided with a circuit in which the signal from the distribution line is fed to a parallel resonance circuit after passing through a series resonance circuit. Moreover, the input and output sections are resistor terminated.
417936
Ise Masahiro
Machino Katsuyuki
Matsubara Toshiyuki
Tanaka Hidehiko
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
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