公开(公告)号：US20240012480A1

公开(公告)日：2024-01-11

申请号：US18355659

申请日：2023-07-20

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Joseph Yitan Cheng ,  Hanlin Goh

IPC: G06F3/01 ,  G06N3/04 ,  G06N20/00

CPC classification number: G06F3/015 ,  G06N3/04 ,  G06N20/00

Abstract: Techniques are disclosed for defining a training data set to include biosignals and categorical labels representative of a context. For example, a categorical label may indicate whether a user was performing a difficult or easy mental task while the biosignal was being recorded. A set of first layers in a neural network can be trained using a portion of the training data set associated with a first set of users and at least one second layer can be trained using a portion of the training data set associated with a particular other user. The neural network can then be used to process other biosignals from the particular other user to generate predicted categorical context labels.

公开(公告)号：US20210286429A1

公开(公告)日：2021-09-16

申请号：US17174875

申请日：2021-02-12

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Joseph Yitan Cheng ,  Hanlin Goh

IPC: G06F3/01 ,  G06N20/00 ,  G06N3/04

Abstract: Techniques are disclosed for defining a training data set to include biosignals and categorical labels representative of a context. For example, a categorical label may indicate whether a user was performing a difficult or easy mental task while the biosignal was being recorded. A set of first layers in a neural network can be trained using a portion of the training data set associated with a first set of users and at least one second layer can be trained using a portion of the training data set associated with a particular other user. The neural network can then be used to process other biosignals from the particular other user to generate predicted categorical context labels.

公开(公告)号：US11874958B2

公开(公告)日：2024-01-16

申请号：US17448873

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Ali Moin ,  Christoph H. Krah ,  Joseph Yitan Cheng ,  Kaan Emre Dogrusoz ,  Mohammad Yeke Yazdandoost

IPC: G06F3/01 ,  G06F1/3203 ,  G06F1/3206 ,  G06F1/3234 ,  G06F1/3287

CPC classification number: G06F3/013 ,  G06F1/3203 ,  G06F1/325 ,  G06F3/015 ,  G06F3/017 ,  G06F1/3206 ,  G06F1/3234 ,  G06F1/3287

Abstract: A head-mounted device having a plurality of electrodes configured to detect optical events such as the movement of one or more eyes or coarse eye gestures is disclosed. In some examples, the one or more electrodes can be coupled to dielectric elastomer materials whose shape can be changed to vary contact between a user of the head-mounted device and the one or more electrodes to ensure sufficient contact and electrode signal quality. In some examples, the one or more electrodes can be coupled to pressure sensors and control circuitry to monitor and adjust the applied pressure. In some examples, the optical events can be used as triggers for operating the device, including transitioning between operational power modes. In some examples, the triggers can invoke higher resolution sensing capabilities of the head-mounted device. In some examples, the electrodes can be used as an on-head detector to wake-up and/or unlock the device.

公开(公告)号：US20210374570A1

公开(公告)日：2021-12-02

申请号：US17326098

申请日：2021-05-20

Applicant: Apple Inc.

Inventor： Joseph Y. Cheng ,  Erdrin Azemi ,  Hanlin Goh ,  Kaan E. Dogrusoz ,  Cuneyt O. Tuzel

IPC: G06N5/04 ,  G06N20/00

Abstract: The present application relates to apparatus, systems, and methods to perform subject-aware self-supervised learning of a machine-learning model for classification of data, such as classification of biosignals.

公开(公告)号：US12282596B2

公开(公告)日：2025-04-22

申请号：US18403599

申请日：2024-01-03

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Ali Moin ,  Christoph H. Krah ,  Joseph Yitan Cheng ,  Kaan Emre Dogrusoz ,  Mohammad Yeke Yazdandoost

IPC: G06F3/01 ,  G06F1/3203 ,  G06F1/3234 ,  G06F1/3206 ,  G06F1/3287

Abstract: A head-mounted device having a plurality of electrodes configured to detect optical events such as the movement of one or more eyes or coarse eye gestures is disclosed. In some examples, the one or more electrodes can be coupled to dielectric elastomer materials whose shape can be changed to vary contact between a user of the head-mounted device and the one or more electrodes to ensure sufficient contact and electrode signal quality. In some examples, the one or more electrodes can be coupled to pressure sensors and control circuitry to monitor and adjust the applied pressure. In some examples, the optical events can be used as triggers for operating the device, including transitioning between operational power modes. In some examples, the triggers can invoke higher resolution sensing capabilities of the head-mounted device. In some examples, the electrodes can be used as an on-head detector to wake-up and/or unlock the device.

公开(公告)号：US20230225659A1

公开(公告)日：2023-07-20

申请号：US18094841

申请日：2023-01-09

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Ali Moin ,  Anuranjini Pragada ,  Jean Hsiang-Chun Lu ,  Victoria M. Powell ,  Juri Minxha ,  Steven P. Hotelling

IPC: A61B5/304 ,  A61B5/291 ,  A61B5/00 ,  A61B5/31

CPC classification number: A61B5/304 ,  A61B5/291 ,  A61B5/6817 ,  A61B5/31 ,  A61B2562/0209 ,  A61B2562/046

Abstract: A wearable electronic device includes a housing, and an electrode carrier attached to the housing and having a nonplanar surface. The wearable electronic device includes a set of electrodes, including electrodes positioned at different locations on the nonplanar surface. The wearable electronic device includes a sensor circuit and a switching circuit. The switching circuit is operable to electrically connect a number of different subsets of one or more electrodes in the set of electrodes to the sensor circuit.

公开(公告)号：US20250090075A1

公开(公告)日：2025-03-20

申请号：US18884061

申请日：2024-09-12

Applicant: Apple Inc.

Inventor： Christopher M. Sandino ,  Ali Moin ,  Erdrin Azemi ,  Joseph Cheng

IPC: A61B5/318

Abstract: Embodiments are disclosed for ECG signal reconstruction from an EEG signal. In some embodiments, a method comprises: determining, with at least one processor, heartbeat timestamps from a heartrate signal; obtaining an electroencephalography (EEG) signal from an EEG sensor; aligning, with the at least one processor, the EEG signal with the heartbeat timestamps; collaborative filtering, with the at least one processor, the beat-aligned EEG signal; and determining, with the at least one processor, an approximation of an electrocardiography (ECG) signal based on the filtered beat-aligned EEG signal.

公开(公告)号：US11747902B2

公开(公告)日：2023-09-05

申请号：US17174875

申请日：2021-02-12

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Joseph Yitan Cheng ,  Hanlin Goh

IPC: G06F3/01 ,  G06N3/04 ,  G06N20/00

CPC classification number: G06F3/015 ,  G06N3/04 ,  G06N20/00

Abstract: Techniques are disclosed for defining a training data set to include biosignals and categorical labels representative of a context. For example, a categorical label may indicate whether a user was performing a difficult or easy mental task while the biosignal was being recorded. A set of first layers in a neural network can be trained using a portion of the training data set associated with a first set of users and at least one second layer can be trained using a portion of the training data set associated with a particular other user. The neural network can then be used to process other biosignals from the particular other user to generate predicted categorical context labels.

公开(公告)号：US12135837B2

公开(公告)日：2024-11-05

申请号：US18355659

申请日：2023-07-20

Applicant: Apple Inc.

Inventor： Erdrin Azemi ,  Joseph Yitan Cheng ,  Hanlin Goh

IPC: G06F3/01 ,  G06N3/04 ,  G06N20/00

Abstract: Techniques are disclosed for defining a training data set to include biosignals and categorical labels representative of a context. For example, a categorical label may indicate whether a user was performing a difficult or easy mental task while the biosignal was being recorded. A set of first layers in a neural network can be trained using a portion of the training data set associated with a first set of users and at least one second layer can be trained using a portion of the training data set associated with a particular other user. The neural network can then be used to process other biosignals from the particular other user to generate predicted categorical context labels.

公开(公告)号：US12056285B2

公开(公告)日：2024-08-06

申请号：US17823870

申请日：2022-08-31

Applicant: Apple Inc.

Inventor： Kaan E. Dogrusoz ,  Ali Moin ,  Benjamin J. Grena ,  Erdrin Azemi ,  Joseph Cheng ,  Lia M. Uesato ,  Daniel A. Podhajny

IPC: G06F3/01 ,  A61B5/00 ,  A61B5/279

CPC classification number: G06F3/017 ,  A61B5/279 ,  A61B5/681

Abstract: Electrodes that can be formed in a flexible band of a wrist-worn device to detect hand gestures are disclosed. Multiple rows of electrodes can be configured to detect electromyography (EMG) signals produced by activity of muscles and tendons. The band can include removable electrical connections (e.g., pogo pins) to enable the electrode signals to be routed to processing circuitry in the housing of the wrist-worn device. Measurements between signals from the active electrodes and one or more reference electrodes can be obtained to capture EMG signals at a number of locations on the band. The measurement method and mode of operation (lower power coarse detection or higher power fine detection) can determine the location and number of electrodes to be measured. These EMG signals can be processed to identify hand movements and recognize gestures associated with those hand movements.