公开(公告)号：US12064265B2

公开(公告)日：2024-08-20

申请号：US17881917

申请日：2022-08-05

Applicant: APPLE INC.

Inventor： Adam T. Clavelle ,  Maegan K. Spencer ,  Jaden Alyssa Barney ,  Dale N. Memering ,  Ueyn L. Block ,  Paul D. Mannheimer

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/1455

CPC classification number: A61B5/6824 ,  A61B5/02422 ,  A61B5/14552 ,  A61B5/681 ,  A61B5/6838 ,  A61B2562/02 ,  A61B2562/146

Abstract: An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.

公开(公告)号：US20230329597A1

公开(公告)日：2023-10-19

申请号：US18213506

申请日：2023-06-23

Applicant: Apple Inc.

Inventor： Vivek Venugopal ,  Ueyn L. Block ,  Brian R. Land ,  Paul D. Mannheimer ,  Albert E. Cerussi

IPC: A61B5/1455 ,  A61B5/00 ,  A61L31/02 ,  H01L31/0203 ,  H01L31/0216 ,  H01L31/173

CPC classification number: A61B5/14552 ,  A61B5/7278 ,  A61L31/028 ,  H01L31/0203 ,  H01L31/02164 ,  H01L31/173 ,  A61B5/681 ,  A61B2562/0242 ,  A61B2562/04

Abstract: A wearable device is described. The wearable device includes a housing having a back cover, and an optical mask on first portions of the back cover. The back cover includes a set of windows, with a first subset of windows in the set of windows being defined by an absence of the optical mask on second portions of the back cover, and a second subset of windows in the set of windows being inset in a set of openings in the back cover. An optical barrier surrounds each window in the second subset of windows. A set of light emitters is configured to emit light through at least some of the windows in the set of windows. A set of light detectors is configured to receive light through at least some of the windows in the set of windows.

公开(公告)号：US20180014781A1

公开(公告)日：2018-01-18

申请号：US15650744

申请日：2017-07-14

Applicant: Apple Inc.

Inventor： Adam T. Clavelle ,  Maegan K. Spencer ,  Jaden Alyssa Barney ,  Dale N. Memering ,  Ueyn L. Block ,  Paul D. Mannheimer

IPC: A61B5/00 ,  A61B5/1455

Abstract: An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.

公开(公告)号：US20230341991A1

公开(公告)日：2023-10-26

申请号：US18215694

申请日：2023-06-28

Applicant: Apple Inc.

Inventor： Ravi K. Shaga ,  Paul D. Mannheimer ,  Theodore Yu

IPC: G06F3/04815 ,  G06T19/00 ,  G06T19/20 ,  G06T7/55 ,  G06T7/62 ,  G06T7/13 ,  G06F3/03 ,  G06F3/0484 ,  G06T11/20 ,  G06T13/00 ,  G06V20/20

CPC classification number: G06F3/04815 ,  G06T19/006 ,  G06T19/20 ,  G06T7/55 ,  G06T7/62 ,  G06T7/13 ,  G06F3/0304 ,  G06F3/0484 ,  G06T11/203 ,  G06T13/00 ,  G06V20/20 ,  G06F3/0482

Abstract: A measurement engine of a wearable electronic device may compensate for wavelength variations of light emitted as part of blood-oxygen saturation measurements. In some cases, determining an estimated blood-oxygen saturation value is based at least partially on temperature data that may be used to compensate for temperature-based wavelength variations of the emitted light, drive current data that may be used to compensate for drive-current-based wavelength variations of the emitted light, and/or calibration information that may be used to compensate for manufacturing variability across different light emitters. In various embodiments, the measurement engine may use temperature data, the drive current data, and/or calibration information in a variety of ways to determine estimated blood-oxygen saturation values, including using lookup tables or calibration curves, applying functions, and the like.

公开(公告)号：US12193812B2

公开(公告)日：2025-01-14

申请号：US18456462

申请日：2023-08-25

Applicant: Apple Inc.

Inventor： Paul D. Mannheimer ,  Albert E. Cerussi

IPC: A61B5/1455 ,  A61B5/00

Abstract: Estimation of a characteristic of a user's physiological signals can be improved using one or more calibration relationships that may be dependent on a characteristic of the optical sensor. For example, different calibration relationships can be used that are dependent on a spatial characteristic and/or that are dependent on a wavelength characteristic of the light emitting component(s) of the respective emitter of a channel. In some examples, a unique calibration relationship can be used for each channel. In some examples, a common calibration relationship can be used for multiple channels with shared distance and/or wavelength characteristics. Utilizing distance-dependent and/or wavelength-dependent calibration relationships can improve robustness of pulse oximetry measurements.

公开(公告)号：US11931147B2

公开(公告)日：2024-03-19

申请号：US17663411

申请日：2022-05-13

Applicant: Apple Inc.

Inventor： Saeed Mohammadi ,  Albert E. Cerussi ,  Paul D. Mannheimer

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/024

CPC classification number: A61B5/14552 ,  A61B5/681 ,  A61B5/7203 ,  A61B5/7221 ,  A61B5/02433 ,  A61B5/02438 ,  A61B2562/0238 ,  A61B2562/0242 ,  A61B2562/046

Abstract: Robust estimation of a characteristic of a user's physiological signals can be achieved by filtering or classifying samples. Rather than estimating the characteristic of the user's physiological signals based on each sample at a first wavelength and a second wavelength, a robust system and method can, in some examples, estimate the characteristic using samples at the first wavelength and the second wavelength that meet one or more criteria and filter out samples that fail to meet the one or more criteria. In some examples, the system and method can weight samples based on the one or more criteria, and estimate the characteristic using the weighted samples. Samples failing to meet the one or more criteria can be given less weight or no weight in the estimation. The one or more criteria can include a criterion based on at least the physiological signal at a third wavelength.

公开(公告)号：US11723563B1

公开(公告)日：2023-08-15

申请号：US17018985

申请日：2020-09-11

Applicant: Apple Inc.

Inventor： Ravi K. Shaga ,  Paul D. Mannheimer ,  Theodore Yu

IPC: A61B5/1455 ,  G01K13/00 ,  A61B5/1495 ,  A61B5/00

CPC classification number: A61B5/14552 ,  A61B5/1455 ,  A61B5/1495 ,  A61B5/681 ,  A61B5/7203 ,  G01K13/00 ,  A61B2562/0238 ,  A61B2562/0271 ,  A61B2562/043 ,  A61B2562/046

Abstract: A measurement engine of a wearable electronic device may compensate for wavelength variations of light emitted as part of blood-oxygen saturation measurements. In some cases, determining an estimated blood-oxygen saturation value is based at least partially on temperature data that may be used to compensate for temperature-based wavelength variations of the emitted light, drive current data that may be used to compensate for drive-current-based wavelength variations of the emitted light, and/or calibration information that may be used to compensate for manufacturing variability across different light emitters. In various embodiments, the measurement engine may use temperature data, the drive current data, and/or calibration information in a variety of ways to determine estimated blood-oxygen saturation values, including using lookup tables or calibration curves, applying functions, and the like.

公开(公告)号：US20200305794A1

公开(公告)日：2020-10-01

申请号：US16900045

申请日：2020-06-12

Applicant: Apple Inc.

Inventor： Adam T. Clavelle ,  Maegan K. Spencer ,  Jaden Alyssa Barney ,  Dale N. Memering ,  Ueyn L. Block ,  Paul D. Mannheimer

IPC: A61B5/00 ,  A61B5/1455 ,  A61B5/024

Abstract: An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.

公开(公告)号：US12197694B2

公开(公告)日：2025-01-14

申请号：US18215694

申请日：2023-06-28

Applicant: Apple Inc.

Inventor： Ravi K. Shaga ,  Paul D. Mannheimer ,  Theodore Yu

IPC: G06F3/04815 ,  G06F3/03 ,  G06F3/048 ,  G06F3/0482 ,  G06F3/0484 ,  G06T7/13 ,  G06T7/55 ,  G06T7/62 ,  G06T11/20 ,  G06T13/00 ,  G06T19/00 ,  G06T19/20 ,  G06V20/20

Abstract: A measurement engine of a wearable electronic device may compensate for wavelength variations of light emitted as part of blood-oxygen saturation measurements. In some cases, determining an estimated blood-oxygen saturation value is based at least partially on temperature data that may be used to compensate for temperature-based wavelength variations of the emitted light, drive current data that may be used to compensate for drive-current-based wavelength variations of the emitted light, and/or calibration information that may be used to compensate for manufacturing variability across different light emitters. In various embodiments, the measurement engine may use temperature data, the drive current data, and/or calibration information in a variety of ways to determine estimated blood-oxygen saturation values, including using lookup tables or calibration curves, applying functions, and the like.

公开(公告)号：US12076142B2

公开(公告)日：2024-09-03

申请号：US18213506

申请日：2023-06-23

Applicant: Apple Inc.

Inventor： Vivek Venugopal ,  Ueyn L. Block ,  Brian R. Land ,  Paul D. Mannheimer ,  Albert E. Cerussi

IPC: A61B5/1455 ,  A61B5/00 ,  A61L31/02 ,  H01L31/0203 ,  H01L31/0216 ,  H01L31/173

CPC classification number: A61B5/14552 ,  A61B5/7278 ,  A61L31/028 ,  H01L31/0203 ,  H01L31/02164 ,  H01L31/173 ,  A61B5/681 ,  A61B2562/0242 ,  A61B2562/04

Abstract: A wearable device is described. The wearable device includes a housing having a back cover, and an optical mask on first portions of the back cover. The back cover includes a set of windows, with a first subset of windows in the set of windows being defined by an absence of the optical mask on second portions of the back cover, and a second subset of windows in the set of windows being inset in a set of openings in the back cover. An optical barrier surrounds each window in the second subset of windows. A set of light emitters is configured to emit light through at least some of the windows in the set of windows. A set of light detectors is configured to receive light through at least some of the windows in the set of windows.