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1.发明公开公开(公告)号：US20230204506A1
公开(公告)日：2023-06-29
申请号：US18084342
申请日：2022-12-19
Applicant: Apple Inc.
Inventor： Chin San Han , Ueyn Block , Brian R. Land , Nevzat Akin Kestelli , Serhan Isikman , Albert Wang , Justin Shi
CPC classification number: G01N21/4738 , G01N21/55 , A61B5/0059 , A61B5/6898 , A61B5/7203 , G01N2201/068 , G01N2201/0638 , A61B2562/0233 , A61B5/02416
Abstract: A photoplethysmographic (PPG) device is disclosed. The PPG device can include one or more light emitters and one or more light sensors to generate the multiple light paths for measuring a PPG signal and perfusion indices of a user. The multiple light paths between each pair of light emitters and light detectors can include different separation distances to generate both an accurate PPG signal and a perfusion index value to accommodate a variety of users and usage conditions. In some examples, the multiple light paths can include the same separation distances for noise cancellation due to artifacts resulting from, for example, tilt and/or pull of the device, a user's hair, a user's skin pigmentation, and/or motion. The PPG device can further include one or more lenses and/or reflectors to increase the signal strength and/or and to obscure the optical components and associated wiring from being visible to a user's eye.
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公开(公告)号：US10215698B2
公开(公告)日：2019-02-26
申请号：US14569235
申请日：2014-12-12
Applicant: Apple Inc.
Inventor： Chin San Han , Ueyn Block , Brian R. Land , Nevzat Akin Kestelli , Serhan Isikman , Albert Wang , Justin Shi
Abstract: A photoplethysmographic (PPG) device is disclosed. The PPG device can include one or more light emitters and one or more light sensors to generate the multiple light paths for measuring a PPG signal and perfusion indices of a user. The multiple light paths between each pair of light emitters and light detectors can include different separation distances to generate both an accurate PPG signal and a perfusion index value to accommodate a variety of users and usage conditions. In some examples, the multiple light paths can include the same separation distances for noise cancellation due to artifacts resulting from, for example, tilt and/or pull of the device, a user's hair, a user's skin pigmentation, and/or motion. The PPG device can further include one or more lenses and/or reflectors to increase the signal strength and/or and to obscure the optical components and associated wiring from being visible to a user's eye.
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公开(公告)号：US12072288B2
公开(公告)日：2024-08-27
申请号：US18084342
申请日：2022-12-19
Applicant: Apple Inc.
Inventor： Chin San Han , Ueyn Block , Brian R. Land , Nevzat Akin Kestelli , Serhan Isikman , Albert Wang , Justin Shi
CPC classification number: G01N21/4738 , A61B5/0059 , G01N21/55 , A61B5/02416 , A61B5/681 , A61B5/6898 , A61B5/7203 , A61B2560/0475 , A61B2562/0233 , G01N2201/0638 , G01N2201/068
Abstract: A photoplethysmographic (PPG) device is disclosed. The PPG device can include one or more light emitters and one or more light sensors to generate the multiple light paths for measuring a PPG signal and perfusion indices of a user. The multiple light paths between each pair of light emitters and light detectors can include different separation distances to generate both an accurate PPG signal and a perfusion index value to accommodate a variety of users and usage conditions. In some examples, the multiple light paths can include the same separation distances for noise cancellation due to artifacts resulting from, for example, tilt and/or pull of the device, a user's hair, a user's skin pigmentation, and/or motion. The PPG device can further include one or more lenses and/or reflectors to increase the signal strength and/or and to obscure the optical components and associated wiring from being visible to a user's eye.
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公开(公告)号：US11536653B2
公开(公告)日：2022-12-27
申请号：US16144958
申请日：2018-09-27
Applicant: Apple Inc.
Inventor： Chin San Han , Ueyn Block , Brian R. Land , Nevzat Akin Kestelli , Serhan Isikman , Albert Wang , Justin Shi
Abstract: A photoplethysmographic (PPG) device is disclosed. The PPG device can include one or more light emitters and one or more light sensors to generate the multiple light paths for measuring a PPG signal and perfusion indices of a user. The multiple light paths between each pair of light emitters and light detectors can include different separation distances to generate both an accurate PPG signal and a perfusion index value to accommodate a variety of users and usage conditions. In some examples, the multiple light paths can include the same separation distances for noise cancellation due to artifacts resulting from, for example, tilt and/or pull of the device, a user's hair, a user's skin pigmentation, and/or motion. The PPG device can further include one or more lenses and/or reflectors to increase the signal strength and/or and to obscure the optical components and associated wiring from being visible to a user's eye.
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