1978-09-28
1979-11-27
Bookbinder, Marc E.
179170J, H04N 710
Patent
active
041763203
ABSTRACT:
An r.f. signal transmission line system in which a plurality of spaced apart A.C. power sources are respectively coupled by power combiners to a plurality of sequential segments of the transmission line for powering a group of spaced apart thru-powered r.f. signal amplifiers in series with each segment. Each power combiner includes a switching circuit for automatically disconnecting the source from the line segment in the event of failure of the source. Associated with stop-powered amplifiers between adjoining segments is an automatic switching circuit which converts the stop powered amplifier to thru powering in the event of loss of power to a line segment on either side of the stop-powered amplifier and which restores the amplifier to stop-powering upon restoration of the lost power.
REFERENCES:
patent: 2504692 (1950-04-01), Jacobs
patent: 2785317 (1957-02-01), Langberg et al.
patent: 3061736 (1962-10-01), Devine
patent: 3435358 (1969-03-01), Rheinfelder
patent: 3612894 (1971-10-01), Schmidt
patent: 3860748 (1975-01-01), Everhart et al.
patent: 3909560 (1975-09-01), Martin et al.
Jerrold Electronics Corp., "Instruction Sheet 435-551-01", Power Combiner.
Bookbinder Marc E.
Gerasimow Alexander
Slobod Jack D.
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