Lamp control apparatus

Details Lamp control apparatus Lamp control apparatus

2006-04-04

2006-04-04

Pope, Daryl C. (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

External signal light system

C340S465000, C340S468000, C340S471000, C340S479000, C340S331000, C340S332000

Reexamination Certificate

active

07023336

ABSTRACT:
Left and right lamps or rear are connected to a stop lamp switch or a turn signal switch by left and right relays. When the turn signal switch is made ON to left and an intermittent signal is inputted from a flasher unit, a left relay is made ON by an output of a left integrating circuit and a left lamp is flashed in accordance with the intermittent signal. During the time period, an NAND circuit for inputting the intermittent signal is made H. Since a right relay is made OFF, when the stop lamp switch is made ON, a right lamp is continuously lighted. Thereafter, when the turn signal switch is made OFF, the NAND circuit is made L and the left relay is made OFF by rapidly discharging the left integrating circuit. Thereby, also the left lamp is shifted to light continuously without delay.

REFERENCES:
patent: 4290048 (1981-09-01), Cutlip et al.
patent: 5528218 (1996-06-01), Rigsby
patent: 6031451 (2000-02-01), Graves et al.

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