-
公开(公告)号：US20220175258A1
公开(公告)日：2022-06-09
申请号：US17247323
申请日：2020-12-07
发明人： Jack Conway KITCHENS , John Keith SCHNEIDER , Evan Michael BRELOFF , Emily Kathryn BROOKS , Stephen Michael GOJEVIC , Fitzgerald JOHN ARCHIBALD , Alexei STOIANOV , Shounak Uday GORE , Nicholas Ian BUCHAN
摘要： Some disclosed methods involve controlling, via a control system, a light source system to emit a plurality of light pulses into biological tissue at a pulse repetition frequency, the biological tissue including blood and blood vessels at depths within the biological tissue. Such methods may involve receiving, by the control system, signals from the piezoelectric receiver corresponding to acoustic waves emitted from portions of the biological tissue, the acoustic waves corresponding to photoacoustic emissions from the blood and the blood vessels caused by the plurality of light pulses. Such methods may involve detecting, by the control system, heart rate waveforms in the signals, determining, by the control system, a first subset of detected heart rate waveforms corresponding to vein heart rate waveforms and determining, by the control system, a second subset of detected heart rate waveforms corresponding to artery heart rate waveforms.
-
公开(公告)号：US20240065631A1
公开(公告)日：2024-02-29
申请号：US17822307
申请日：2022-08-25
CPC分类号： A61B5/6843 , G04G21/025 , G04G9/007 , A61B5/681 , A61B5/0095
摘要： In some aspects, a user device may initiate a biometric measurement operation relating to a user of the user device. The user device may monitor, using a pressure sensor of the user device, whether a pressure at an interface between a body of the user and the user device is within a range used for obtaining data for a biometric measurement. The user device may provide an indication of whether the user is to adjust the pressure based on whether the pressure is within the range. The user device may obtain the data for the biometric measurement. Numerous other aspects are described.
-
公开(公告)号：US20240161884A1
公开(公告)日：2024-05-16
申请号：US18055230
申请日：2022-11-14
发明人： Emily Kathryn BROOKS , Collin D'SOUZA , John Keith SCHNEIDER , Alexei STOIANOV , Shounak Uday GORE , Rathin RADHAKRISHNAN NAIR
CPC分类号： G16H10/60 , G06K9/6232
摘要： Systems and techniques are described herein for user identification. For instance, a technique can include receiving at least one biosignal from a sensor, the at least one biosignal indicative of a blood perfusion of a user. The technique can further include extracting at least one feature from the at least one biosignal, comparing the extracted at least one feature to at least one template feature associated with an enrolled user, determining, based on comparing the extracted at least one feature to the at least one template feature, whether the user matches the enrolled user, and outputting an indication of whether the user matches the enrolled user.
-
-
搜索结果
3 条记录 (耗时 0.01 秒)
