System for biometric identity confirmation

• US 9,398,858 B2
• Filed: 12/06/2012
• Issued: 07/26/2016
• Est. Priority Date: 12/13/2011
• Status: Active Grant

• Current Assignee: Lifeloc Technologies Inc. (Edco Partners LLLP)
• Original Assignee: Integrated Monitoring Systems, LLC (Track Group, Inc.)
• Inventors: Phillips, Brian Kirby, Wilson, Geoffrey A.
• Primary Examiner(s): ALAM, MIRZA F
• Application Number:
  US13/706,610
• Publication Number:
  US 20130150727A1
• Time in Patent Office: 1,328 Days
• Field of Search: 600/473, 600/484, 600/310, 600/316, 600/322, 340/5.82, 340/5.84, 340/5.52, 340/573.1, 340/573.5, 340/552, 340/567, 382/124, 382/115, 235/380, 235/492, 235/379, 235/381
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02433 for infrared radiation
• CPC Class Codes: A61B 5/087 Measuring breath flow
• CPC Class Codes: A61B 5/117 Identification of persons methods or arrangements for recognising patterns, e.g. fingerprints, G06F18/00, G06V40/00; identification of persons by analysing their voice or speech G10L17/00
• CPC Class Codes: A61B 5/682 Mouth, e.g., oral cavity; tongue; Lips; Teeth
• CPC Class Codes: A61B 5/7225 Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation A61B5/30, A61B5/316 take precedence; transformers for specific applications H01F38/00; amplifiers H03F
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 2218/00 Aspects of pattern recognition specially adapted for signal processing
• CPC Class Codes: G06V 40/45 Detection of the body part being alive

Abstract

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.

Claims

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.

2. The apparatus of claim 1 further comprising a ball lens protruding into the lip of the test subject adjacent to the orifice for transmitting infrared light from the infrared emitter into the lip of the test subject.

3. The apparatus of claim 1 further comprising galvanic probes adjacent to the orifice and in communication with processor to ensure that the lips of the test subject remain in contact with the orifice throughout the breath sample.

4. The apparatus of claim 1 further comprising a transceiver controlled by the processor communicating to the external station whether the identity of the test subject matches the known subject.

5. The apparatus of claim 1 wherein the processor includes an initial enrollment mode in which spirometric data and pulse wave data for a known subject are analyzed to generate the subject characterization data.

6. A portable testing unit for biometric identity confirmation of a test subject having a pulse and a respiratory cycle for use with an external station having a communications link with the testing unit, said portable testing unit comprising:

a housing with an orifice 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;

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; and

a transceiver controlled by the processor communicating to the external station whether the identity of the test subject matches the known subject.

7. The apparatus of claim 6 further comprising a ball lens protruding into the lip of the test subject adjacent to the orifice for transmitting infrared light from the infrared emitter into the lip of the test subject.

8. The apparatus of claim 6 further comprising galvanic probes adjacent to the orifice and in communication with processor to ensure that the lips of the test subject remain in contact with the orifice throughout the breath sample.

9. The apparatus of claim 6 wherein the processor includes an initial enrollment mode in which spirometric data and pulse wave data for a known subject are analyzed to generate the subject characterization data.