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公开(公告)号：US20240142684A1
公开(公告)日：2024-05-02
申请号：US18487004
申请日：2023-10-13
申请人： Apple Inc.
发明人： Bin Fan , Brian S. Tryon , Xiaofan Niu , Chia-Yeh Lee , Frank C. Sit , Hien Minh H Le , Justin S. Shi , Shinjita Acharya , Ziqing Duan
摘要： An electronic device such as a wristwatch may be provided with conductive structures. The conductive structures may include a sensor electrode for an electrocardiogram (ECG) sensor. A coating may be disposed on the sensor electrode to reflect particular wavelengths of visible light so that the sensor electrode exhibits a desired color. The coating may include adhesion and transition layers on the sensor electrode, an opaque coloring layer on the adhesion and transition layers, and a thin-film interference filter on the opaque coloring layer. The thin-film interference filter may have an uppermost diamond-like carbon (DLC) layer. The DLC layer may contribute to the color response of the coating while concurrently minimizing noise in ECG waveforms gathered by the ECG sensor using the sensor electrode.
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公开(公告)号：US20240050013A1
公开(公告)日：2024-02-15
申请号：US17988236
申请日：2022-11-16
申请人： Apple Inc.
发明人： Sung H. Kim , Hyunsoo Ha , Muhammad Ahmadi , Justin S. Shi
CPC分类号： A61B5/28 , A61B5/277 , A61B5/256 , A61B5/4266
摘要： Embodiments are directed to devices, systems and methods for determining a perspiration metric of a user. In some embodiments, a device may include a perspiration sensor having first and second electrodes positioned on a skin-facing exterior surface of the device. Capacitance circuitry may measure a capacitance between the electrodes, which may be used to calculate the perspiration metric. In some embodiments, the device defines a cavity such that one or both of the electrodes extend at least partially into the cavity. Other embodiments include a second perspiration sensor, and measurements from the second perspiration sensor may be used in calculating the perspiration metric.
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