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公开(公告)号：US20190167118A1
公开(公告)日：2019-06-06
申请号：US16323413
申请日：2017-07-20
发明人： Maksim Alexeevich VILENSKII , Mikhail Vyacheslavovich POPOV , Andrey Vladimirovich KLETSOV , Jae-geol CHO , Dmitry Alexandrovich ZIMNYKOV , Sergey Alexeevich YUVCHENKO
摘要： Provided is a wearable device according to an embodiment. The wearable device includes a light source configured to irradiate light to a target area of a user, a light receiver configured to receive scattered light that is scattered from a bloodstream under the target region, a controller configured to determine a blood pressure value of the user based on an intensity of the received scattered light, and a display unit on which the determined blood pressure value is displayed.
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公开(公告)号：US20180181734A1
公开(公告)日：2018-06-28
申请号：US15851612
申请日：2017-12-21
发明人： Maksim Alexeevich VILENSKII , Andrey Vladimirovich KLETSOV , Aleksei Andreevich GAVRON , Alexander Gennadyevich CHERNOKALOV
IPC分类号： G06F21/32 , A61B5/1172 , A61B5/00 , G06K9/00 , G06F3/044
CPC分类号： G06F21/32 , A61B5/0531 , A61B5/1172 , A61B5/6897 , G06F3/0416 , G06F3/044 , G06K9/0002 , G06K9/0012
摘要： The disclosure relates to biometric authentication of a user, in particular, to a method for determining whether to allow user access based on a user input at electronic device, the method comprising: detecting a touch by an object on a touch-sensitive area of an electronic device, in which a plurality of electrode pairs are mounted, the plurality of electrode pairs including a first set of electrode pairs and a second set of electrode pairs; determining a subset of the first set of electrode pairs that are in contact with a part of the object; receiving electrical signals from each pair of the determined subset; calculating impedance values of respective parts of the object on the basis of the received electrical signals; determining a ratio of the calculated impedance values for each pair of electrode pairs disposed on mutually perpendicular lines from said the determined subset, and, if a first impedance value for one electrode pair included in electrode pairs disposed on the mutually perpendicular lines is greater than a second impedance value for the other electrode pair in the electrode pairs, the ratio of the calculated impedance values is a ratio of the first impedance to the second impedance; selecting two pairs of electrode pairs disposed on the mutually perpendicular lines with the maximum ratio of the calculated impedance values; and if the maximum ratio exceeds a predetermined threshold, identifying the object as a living tissue object, and allow access on the electronic device.
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公开(公告)号：US20180018492A1
公开(公告)日：2018-01-18
申请号：US15434707
申请日：2017-02-16
IPC分类号： G06K9/00
CPC分类号： G06K9/001 , G06K9/0004 , G06K9/00107 , G06K2009/00939
摘要： The present disclosure relates to the field of biometric identification of a user, in particular, to a system and method of identifying a user. The method of identifying a user includes: detecting a portion of a user's finger in contact with a touch-sensitive region of a device; and collecting data relating to a fingerprint of the user from the user's finger for a period of time and obtaining a plurality of frames from the data. The method further includes determining whether the user is an authorized user of the device, based on a ridge pattern, a sweat gland pattern, and dynamics of blood circulation in the user's finger as indicated by the data. The method provides an enhanced security system that can be integrated in a user's mobile device to protect against fake biometric characteristics in access control systems.
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