Signal transmission system for fire alarm junction line

Details Signal transmission system for fire alarm junction line Signal transmission system for fire alarm junction line

1982-11-15

1985-10-29

Groody, James J.

Communications: electrical

Systems

Selsyn type

179170J, 307 1, 340291, 340577, 375 36, H04B 354, H04B 338, G08B 2900

Patent

active

045503060

ABSTRACT:
A novel signal transmission system, having a junction line comprised of a power source line, a grounding line and a signal line is disclosed. Two complementarily operative transistors are connected in series between the power source line and the grounding line. Signals are sent out from the junction point of the two transistors to the signal line. The speed for transmitting the signals is effectively increased due to the quick charge and discharge of the signal line.

REFERENCES:
patent: 4208653 (1980-06-01), Abe
patent: 4316262 (1982-02-01), Mizuta
patent: 4423506 (1983-12-01), Kimura

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