Communications: electrical – Systems – Periodic or flashing
Patent
1996-01-25
1996-09-24
Garber, Wendy
Communications: electrical
Systems
Periodic or flashing
340332, 340333, G08B 500
Patent
active
055594921
ABSTRACT:
In a building fire alarm system, the light strobes of a network of strobes are synchronized to flash simultaneously. Each strobe has a charging circuit to charge a capacitor which discharges through a flash tube. Once a capacitor is charged, the charging circuit is disabled. A synchronization pulse is applied through common power lines to trigger discharge of each strobe capacitor through the flash tube followed by recharging of the capacitor.
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Drell, Adrienne, "Strobe Alarm Branded Danger to Epileptics," Metro, 1 p.
Stanley Lawrence G.
Stewart Albert J.
Garber Wendy
Simplex Time Recorder Co.
Vu Ngoc-Yen
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