Recently, I found this patent very interesting and thought to share it with you.

Here is the reference:

PROBLEM TO BE SOLVED: To provide a means for detecting alcohol in expiration of a driver with the driver almost unaware of the detecting operation when the driver is about to start a vehicle , enabling the driver to start the vehicle when alcohol is not detected, making the driver select stop of driving or measurement of the alcohol amount when alcohol is detected, and for preventing the driver from starting the vehicle when the alcohol amount exceeding a reference value is measured.

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Tags: alcohol, driver, patent


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Comment by Bikramjit Singh on December 2, 2009 at 2:29am
JP2004249847 – here is the another one :)


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