公开(公告)号：US20190339390A1

公开(公告)日：2019-11-07

申请号：US16375551

申请日：2019-04-04

Applicant: Analog Devices, Inc.

Inventor： Tyler RAY ,  Nicholas J. JAKSE ,  Neal Tait KURFISS ,  Christopher M. HANNA ,  Miguel A. CHAVEZ

IPC: G01S17/50 ,  G01S7/48

Abstract: Systems and methods for optically measuring displacement of an element include an emitter for emitting an optical signal, a first detector for detecting reflections of the optical signal from the element, a second detector for detecting reflections of the optical signal from a raised cover structure, a processor for receiving the detected reflections from the first and second detectors and removing distortions in the detected reflections from the first detector using the detected reflections from the second detector.

公开(公告)号：US20190150839A1

公开(公告)日：2019-05-23

申请号：US15816609

申请日：2017-11-17

Applicant: Analog Devices, Inc.

Inventor： Neal Tait KURFISS ,  Shrenik DELIWALA

IPC: A61B5/00 ,  A61B5/1455

Abstract: Device for detecting characteristic signals of tissues and materials and methods for calculating thereof. Apparatus and methods for detecting the presence of tissue (skin) in pulse oximeter are disclosed. Specifically, analysis using optical techniques are used to identify characteristic signals of different compositions of matter. The present application discloses using a plurality of photodetectors at different distances from a source to measure light scattering through a variety of materials, and more specifically, to detect the presence of tissue.

公开(公告)号：US20220304590A1

公开(公告)日：2022-09-29

申请号：US17706196

申请日：2022-03-28

Applicant: Analog Devices, Inc.

Inventor： Charles MATHY ,  Sunrita PODDAR ,  Di XUE ,  Miles BENNETT ,  Foroohar FOROOZAN ,  Edward Joseph DANYLIW ,  Neal Tait KURFISS

IPC: A61B5/08 ,  A61B5/1455 ,  A61B5/00

Abstract: System and apparatus for pulse oximetry. Systems, methods, and devices are presented for placement of the hardware on a body part where detracting signals are strong. In one example, detracting signals include signals from respiration. In various examples, the body part the oximeter is placed on is a wrist, chest, or arm. A computationally efficient pipeline is presented that allows for reliable and robust SpO2 estimation.