MONITORING BREATHALYZER
First Claim
Patent Images
1. A breathalyzer, comprising:
- an alcohol sensor to receive a breath air sample and measuring percent blood alcohol concentration (BAC%) based on the breath sample;
a non-volatile memory to store calibration data of the alcohol sensor comprising one or more reference points;
a processing unit to determine an accuracy of the alcohol sensor using a user'"'"'s body as a simulator in a monitoring mode by receiving a BAC% measurement from the alcohol sensor based on the breath sample provided by the user at a sample time, the sample time determined based on a time to a predetermined calibration point from a drink start time;
to determine a reference point from the BAC% measurement; and
to store the reference point in the non-volatile memory; and
to determine a BAC% reading based on the BAC% measurement by the alcohol sensor and the calibration data stored in the non-volatile memory in an operation mode; and
a screen to display the BAC% reading and other information to the user.
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Abstract
The monitoring breathalyzer has an alcohol sensor, a non-volatile memory, a processing unit or processor, and a screen. The processing unit determines the accuracy of the breathalyzer using the user'"'"'s body as a simulator. In monitoring mode, the processing unit receives a BAC% measurement from the alcohol sensor based on the breath sample provided by the user at a sample time and determines a reference point from the BAC% measurement. The sample time is determined based on the user'"'"'s metabolism rate or based on a time to a predetermined calibration point from a drink start time.
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Citations
20 Claims
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1. A breathalyzer, comprising:
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an alcohol sensor to receive a breath air sample and measuring percent blood alcohol concentration (BAC%) based on the breath sample; a non-volatile memory to store calibration data of the alcohol sensor comprising one or more reference points; a processing unit to determine an accuracy of the alcohol sensor using a user'"'"'s body as a simulator in a monitoring mode by receiving a BAC% measurement from the alcohol sensor based on the breath sample provided by the user at a sample time, the sample time determined based on a time to a predetermined calibration point from a drink start time;
to determine a reference point from the BAC% measurement; and
to store the reference point in the non-volatile memory; and
to determine a BAC% reading based on the BAC% measurement by the alcohol sensor and the calibration data stored in the non-volatile memory in an operation mode; anda screen to display the BAC% reading and other information to the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Apparatus for determining accuracy of a breathalyzer, comprising:
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a processor to determine accuracy of the breathalyzer using a user'"'"'s body as a simulator receives a percent blood alcohol concentration (BAC%) measurement taken from the breathalyzer based on the breath sample provided by the user at a sample time, the sample time determined based on a time to a predetermined calibration point from a drink start time; and
to determine a reference point from the BAC% measurement; anda screen to display the reference point to be inputted by the user as a calibration data into the breathalyzer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A web-enabled, processor based client device for determining accuracy of a breathalyzer, comprising:
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a processor to determine accuracy of the breathalyzer using a user'"'"'s body as a simulator receives a sample time determined by a processor based web server over a communications network, the sample time determined based on a time to a predetermined calibration point from a drink start time;
to receive a percent blood alcohol concentration (BAC%) measurement taken by the breathalyzer based on the breath sample provided by the user at the sample time;
to transmit the BAC% measurement to the web server over the communications network; and
to receive a reference point determined from the BAC% measurement by the web server; anda screen to display the reference point to be inputted by the user as a calibration data into the breathalyzer. - View Dependent Claims (18, 19, 20)
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Specification