System for biometric identity confirmation

摘要

A portable testing unit for biometric identity confirmation includes a housing with an orifice to receive a breath sample from the test subject, a spirometric sensor, and a pulse sensor adjacent to the orifice. A processor analyzes spirometric data from the spirometric sensor and simultaneous pulse wave data from the pulse sensor during the breath sample, together with stored subject characterization data for a known subject to confirm whether the identity of the test subject matches the known subject. A communications link enables the processor to communicate to the external station whether the identity of the test subject matches the known subject. For example, this portable testing unit can be used to control access to a secure facility or computer, authenticate the identity of a party in a financial transaction, or confirm the identity of the subject of an alcohol monitoring test.

主权项

1. An apparatus for biometric confirmation of the identity of a test subject having a pulse and a respiratory cycle, said apparatus comprising:
a housing with an orifice for receiving a breath sample from a test subject; a spirometric sensor generating spirometric data from the breath sample; a pulse sensor adjacent to the orifice and in contact with the test subject during the breath sample, said pulse sensor simultaneously generating pulse wave data for the test subject during the breath sample and having: (a) an infrared emitter adjacent to the orifice transmitting infrared light into the lip of the test subject; and (b) an infrared detector adjacent to the orifice receiving and measuring the infrared light traveling through the lip of the test subject from the infrared emitter; and (c) a ball lens protruding into the lip of the test subject adjacent to the orifice for receiving infrared light traveling from the infrared emitter through the lip of the test subject for the infrared detector; stored subject characterization data based on spirometric data and pulse wave data for a known subject; and a processor analyzing the spirometric data from the spirometric sensor, the pulse wave data from the pulse sensor, and the subject characterization data for the known subject to confirm whether the identity of the test subject matches the known subject.