Road-condition informing apparatus and road-condition...

Details Road-condition informing apparatus and road-condition... Road-condition informing apparatus and road-condition...

2004-07-16

2010-10-19

Pham, Toan N (Department: 2612)

Communications: electrical

External condition vehicle-mounted indicator or alarm

Highway information

C340S539220, C340S934000

Reexamination Certificate

active

07817064

ABSTRACT:
A detecting unit that is provided at a detection position on a road detects a road condition near the detection position. A light emitting unit that is provided at the detection position emits a light. A control unit controls a light emission of the light emitting unit based on detected road condition.

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