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公开(公告)号：US20220061699A1
公开(公告)日：2022-03-03
申请号：US17008240
申请日：2020-08-31
Applicant: Apple Inc.
Inventor： Daniel W. LaBove , Chin San Han , Ali M. Amin , Henry Rimminen , Riley E. Brandt , Timothy L. Weadon , Yindar Chuo , Zijing Zeng
Abstract: Disclosed herein are capacitive sensors, and methods for their operation, that determine the presence of a user by detecting input forces and/or pressures. Capacitive sensors may be in the form of a flexible capacitive sensing mat. An electronic device incorporating a flexible capacitive sensing mat may include spacer fabric disposed between conductive layers. The spacer fabric may have a first thickness and may be configured to compress to at least a second thickness when a threshold pressure is applied to the layered sensor and revert to the first thickness when the threshold pressure is no longer applied to the flexible mat. A capacitive sense circuit electrically coupled to the second conductive layer and configured to generate a presence detection signal when the spacer fabric layer compresses to the second thickness may additionally be provided.
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