IGNITION INTERLOCK BREATHALYZER
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Accused Products
Abstract
The invention relates to an improvement in a breath alcohol test devices includes within the handheld unit containing a fuel cell, a miniaturized self calibrating test device thereby avoiding the need for 30, 60 and 90 day calibration testing. It also relates to various tamper or circumvention improvements that may be used alone or in combination with the self calibration improvement, including cameras to record a driver providing a breath sample and to verify the location of the driver within a vehicle.
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Citations
19 Claims
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1. (canceled)
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2. A breath intoxicant test system, comprising:
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a case; an intoxicant sensor located within the case and operable to detect a level of an intoxicant in a user'"'"'s breath and to provide a signal indicative of the level of the intoxicant in the user'"'"'s breath; a circuit operable to determine the level of the intoxicant in the user'"'"'s breath based on the signal from the intoxicant sensor; and an intoxicant vapor source located within the case and operable to provide a known concentration of intoxicant vapor for calibrating the intoxicant sensor. - View Dependent Claims (3, 4, 5, 6)
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7. A breath intoxicant test system, comprising:
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an intoxicant sensor operable to detect a level of intoxicant in a user'"'"'s breath and to provide a signal indicative of the level of intoxicant in the user'"'"'s breath; a circuit operable to determine the level of intoxicant in the user'"'"'s breath based on the signal from the intoxicant sensor; and a first camera comprising at least one infrared light sensor; a second camera comprising at least one infrared sensor operable to capture an infrared image; the circuit further operable to capture at least one image associated with a breath intoxicant measurement using the first camera, second camera or first and second cameras. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 16)
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15. The breath intoxicant test system of claim 15 wherein the target is a sticker printed with IR-reflective ink.
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17. A breath intoxicant test system, comprising:
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an intoxicant sensor operable to detect a level of intoxicant in a user'"'"'s breath and to provide a signal indicative of the level of intoxicant in the user'"'"'s breath; a circuit operable to determine the level of intoxicant in the user'"'"'s breath based on the signal from the intoxicant sensor; a first pressure sensor configured near a breath input before a constriction of an airway in the breath intoxicant monitoring system; a second pressure sensor configured in the airway after the constriction in the breath intoxicant monitoring system. - View Dependent Claims (18, 19)
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Specification