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公开(公告)号：US20210255705A1
公开(公告)日：2021-08-19
申请号：US17306618
申请日：2021-05-03
Applicant: Apple Inc.
Inventor： Nicholas Paul Joseph Allec , Xiaoyl Mu
Abstract: This disclosure relates to detecting hand gesture input using an electronic device, such as a wearable device strapped to a wrist. The device can have multiple photodiodes, each sensing light at a different position on a surface of the device that faces skin of a user. Examples of the disclosure detect hand gestures by recognizing patterns in sensor data that are characteristic of each hand gesture, as the tissue expands and contracts and anatomical features in the tissue move during the gesture.
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