Patent ID: 9015000
Filing Date: 2015-04-21
Classification: G01N,G16H

Abstract:
1. A breathalyzer, comprising: an alcohol sensor to receive a breath air sample and measuring percent blood alcohol concentration (BAC %) based on analysis of 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 a user at a sample time to provide a reference point, the sample time determined based on a time to a predetermined calibration point from a drink start time; to store the reference point in the non-volatile memory; and to provide 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; a screen to display the BAC % reading and other information to a user; and a housing to house the processing unit, the alcohol sensor, the non-volatile memory and the display.