Authentication system and authentication method for detecting breath alcohol
US10436807B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Aug 29, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/661
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is an object to prevent impersonation in breath measurement by using a portable device. After breath is introduced into a breath introduction inlet 11 of a breath introduction device 1, a first image group is acquired by continuously capturing images over a predetermined period, and after drinking determination based on the introduced breath from the breath introduction inlet 11, the portable device is provided with an imaging device 11 that acquires a second image by capturing an image again and outputs whether or not each image in the first image group and the second image are the images of the same person.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.