Calibrating breathalyzer
AssigneeAk Globaltech Corp.
InventorsMatthew Hogyun Son, Jung Hoon Son
Life of this patent
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Abstract
The calibrating breathalyzer comprises an alcohol sensor, a non-volatile memory, a processing unit or processor, a display and a housing to house these components. The processing unit can calibrate the breathalyzer using the user's body as a simulator based on the user's metabolism rate, type and amount of alcohol consumed by the user. The processing unit determines a sample time to receive a breath sample from the user based on a time to a predetermined calibration point from the drinking start time calculated using the user's metabolism rate and the determined maximum alcohol level. The BAC % measurement based on the user's breath sample at the sample time is used as a reference point in calibrating the breathalyzer.
Claims18
A calibrating breathalyzer, comprising:
- an alcohol sensor to receive a breath air sample and to measure 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 operate the breathalyzer in two modes:
- (A) a calibration mode to calibrate the breathalyzer using a user's body as a simulator 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;
- and storing the reference point;
- and (B) an operation mode to provide a BAC % reading based on the BAC % measurement by the alcohol sensor and the calibration data stored in the non-volatile memory;
- a display 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.
Apparatus for calibrating a breathalyzer using a user's body as a simulator, comprising:
- a processor to receive a percent blood alcohol concentration (BAC %) measurement from the alcohol sensor based on the breath sample provided by the 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;
- a memory to store the reference point;
- and
- a display to display the reference point to be inputted by the user as a calibration data into the breathalyzer.
A web based method for calibrating of a breathalyzer using a user's body as a simulator, comprising the steps of:
- determining by a processor based web server a sample time to receive a breath sample by the breathalyzer from the user based on a user's metabolism rate;
- receiving a percent blood alcohol concentration (BAC %) measurement taken by the breathalyzer based on the breath sample provided by the user at a sample time to provide a reference point from a web-enabled client device by the web server over a communications network;
- storing the reference point by the web server;
- and
- transmitting to the web-enabled client device the reference point to be inputted by the user as a calibration data into the breathalyzer.
A web based method for calibrating of a breathalyzer using a user's body as a simulator, comprising the steps of:
- determining by a processor based web server a sample time to receive a breath sample by the breathalyzer from the user based on a time to a predetermined calibration point from a drink start time;
- receiving a percent blood alcohol concentration (BAC %) measurement taken by the breathalyzer based on the breath sample provided by the user at a sample time to provide a reference point from a web-enabled client device by the web server over a communications network;
- storing the reference point by the web server;
- and
- transmitting to the web-enabled client device the reference point to be inputted by the user as a calibration data into the breathalyzer.
Dependencies are inferred from the claim text.