公开(公告)号：US12042301B2

公开(公告)日：2024-07-23

申请号：US17821435

申请日：2022-08-22

Applicant: Apple Inc.

Inventor： Tao Shui ,  Han Bi ,  Na Huang ,  Nilay D. Jani

IPC: A61B5/24 ,  A61B5/00 ,  A61B5/30 ,  A61B5/304

CPC classification number: A61B5/6844 ,  A61B5/24 ,  A61B5/681 ,  A61B5/7203 ,  A61B5/7228 ,  A61B5/7475 ,  A61B5/30 ,  A61B5/304

Abstract: Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.

公开(公告)号：US11419551B2

公开(公告)日：2022-08-23

申请号：US16565127

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Tao Shui ,  Han Bi ,  Na Huang ,  Nilay D. Jani

IPC: A61B5/24 ,  A61B5/00 ,  A61B5/30 ,  A61B5/304

Abstract: Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.

公开(公告)号：US20250068239A1

公开(公告)日：2025-02-27

申请号：US18776052

申请日：2024-07-17

Applicant: Apple Inc.

Inventor： Tao Shui ,  Adriaan J. Taal ,  Na Huang

IPC: G06F3/01 ,  G06F1/16 ,  G06F3/0488

Abstract: Embodiments are directed to methods, devices and systems for determining and applying a gain adjustment to sensed electrical signals. The methods can include operating a device to determine that a user is wearing the wearable electronic device and applying a test signal to a sensing electrode of the wearable device. An input impedance for the sensing electrode can be determined using the test signal. The input impedance and a baseline impedance can be used to determine a gain adjustment. An electrical signal of the user can be measured using the sensing electrode and the gain adjustment can be applied to the electrical signal. A physiological parameter of the user can be determined using the measured electrical signal having the gain adjustment applied.

公开(公告)号：US11484267B2

公开(公告)日：2022-11-01

申请号：US16565127

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Tao Shui ,  Han Bi ,  Na Huang ,  Nilay D. Jani

IPC: A61B5/24 ,  A61B5/00 ,  A61B5/30 ,  A61B5/304

Abstract: Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.