公开(公告)号：US20240361238A1

公开(公告)日：2024-10-31

申请号：US18309468

申请日：2023-04-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pulak SARANGI ,  Kaichien TSAI ,  Boyu SHEN ,  Anand G. DABAK

IPC: G01N21/53

CPC classification number: G01N21/53 ,  G01N2201/0698 ,  G01N2201/1247 ,  G01N2201/129

Abstract: In some examples, a method includes transmitting first light pulses according to a pre-determined pulse pattern in a first measurement period. The method also includes transmitting second light pulses according to the pre-determined pulse pattern in a second measurement period consecutive to the first measurement period, in which at least some of the first and second light pulses being unequally spaced in time across the first and second measurement periods. The method also includes receiving first detection signals representing detection of the first light pulses. The method also includes receiving second detection signals representing detection of the second light pulses. The method also includes providing a first light scattering measurement signal representing the first measurement period responsive to the first detection signals. The method also includes providing a second light scattering measurement signal representing the second measurement period responsive to the second detection signals.

公开(公告)号：US12114992B2

公开(公告)日：2024-10-15

申请号：US16088378

申请日：2017-03-16

Applicant: Chen Wei

Inventor： Chen Wei

IPC: G01N21/00 ,  A61B5/00 ,  G01N21/31 ,  G01N21/47 ,  G06F17/11 ,  G06F30/20

CPC classification number: A61B5/443 ,  A61B5/0075 ,  A61B5/72 ,  G01N21/31 ,  G01N21/47 ,  G06F17/11 ,  G06F30/20 ,  G01N2201/129

Abstract: A method for calculating 19 biological parameters associated with the light absorption of human skin by means of a mathematical model. This method establishes a relevance between the skin spectrum and the biological parameters associated with light absorption in the epidermal/dermal layer of skin, by establishing two levels of analytical models, namely, a skin spectral analysis model and a mathematical model of biological parameters in the skin associated with the light absorption, achieves virtual spectrums which are stimulated by a set of skin parameters, and then performs optimization iteration by information processing technology using the virtual spectrums and the actual spectrums, to find a set of optimized results which meets a specific standard of the goodness of fit, thus reaching the goal of quantitatively analyzing biological parameters associated with the light absorption in human skin.

公开(公告)号：US20240180428A1

公开(公告)日：2024-06-06

申请号：US18438144

申请日：2024-02-09

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61C1/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/95 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7203 ,  A61B5/7257 ,  A61B5/7405 ,  A61B5/742 ,  A61C19/04 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/025 ,  G01N33/15 ,  G01N33/442 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  A61B5/0024 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/146 ,  A61B2576/02 ,  A61C1/0046 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J3/1838 ,  G01J2003/2826 ,  G01M3/38 ,  G01N2021/3513 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N21/85 ,  G01N21/9508 ,  G01N2201/061 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302 ,  Y02A90/10

Abstract: An optical system comprises a wearable device for measuring one or more physiological parameters. The physiological parameters may change in response to stretching of the hand or movement of fingers or thumb of the user, or the parameters may be related to blood constituents or blood flow. The wearable device comprises a light source with a plurality of semiconductor diodes and a detection system that measures reflected light from tissue comprising skin. The semiconductor diodes may be light emitting diodes or laser diodes. The signal to noise ratio for the output signal may be improved by synchronizing the detection system to the light source, increasing light intensity of at least one of the plurality of semiconductor diodes from an initial light intensity, and using change detection that compares light on versus light off for the detection system output. The wearable device is also configured to identify an object.

公开(公告)号：US11762125B2

公开(公告)日：2023-09-19

申请号：US17693158

申请日：2022-03-11

Applicant: CLIMATE LLC

Inventor： Lijuan Xu ,  Ying Xu

IPC: G01V99/00 ,  G01N21/359 ,  G01N33/00 ,  G06Q10/04 ,  G06F30/27 ,  A01B76/00 ,  G01N21/31 ,  G01W1/10 ,  G01N33/24 ,  G01N21/17 ,  A01B79/00 ,  G06F111/06

CPC classification number: G01V99/005 ,  A01B76/00 ,  G01N21/31 ,  G01N21/359 ,  G01N33/0098 ,  G01N33/24 ,  G01W1/10 ,  G06F30/27 ,  G06Q10/04 ,  A01B79/005 ,  G01N2021/1793 ,  G01N2021/3155 ,  G01N2201/0616 ,  G01N2201/129 ,  G06F2111/06

Abstract: A method for determining national crop yields during the growing season is provided. In an embodiment, a server computer system receives agricultural data records for a particular year that represent covariate data values related to plants at a specific geo-location at a specific time. The system aggregates the records to create geo-specific time series for a geo-location over a specified time. The system creates aggregated time series from a subset of the geo-specific time series. The system selects a representative feature from the aggregated time series and creates a covariate matrix for each specific geographic area in computer memory. The system determines a specific crop yield for a specific year using linear regression to calculate the specific crop yield from the covariate matrix. The system determines a forecasted crop yield for the specific year using a sum of the specific crop yields for the specific year, as adjusted.

公开(公告)号：US20230277065A1

公开(公告)日：2023-09-07

申请号：US18118013

申请日：2023-03-06

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/145 ,  G01N33/15 ,  G01N33/49 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/44 ,  G01N21/88 ,  A61B5/1455 ,  G16Z99/00 ,  A61C19/04 ,  G01N21/3504

CPC classification number: A61B5/0088 ,  A61B5/0075 ,  G01J3/108 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  A61B5/7257 ,  G01J3/0218 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/4547 ,  G01N33/15 ,  G01N33/49 ,  G01J3/2823 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/442 ,  G01N21/88 ,  A61B5/6801 ,  A61B5/7405 ,  A61B5/742 ,  G01N33/025 ,  A61B5/1455 ,  G16Z99/00 ,  A61B5/7203 ,  A61C19/04 ,  G01J3/02 ,  G01N21/3504 ,  G01N2201/129 ,  H01S3/302

Abstract: A measurement system comprising one or more semiconductor diodes configured to penetrate tissue comprising skin. The detection system comprising a camera, which may also include a direct or indirect time-of-flight sensor. The detection system synchronized to the pulsing of the semiconductor diodes, and the camera further coupled to a processor. The detection system non-invasively measuring blood within the skin, measuring hemoglobin absorption between 700 to 1300 nm, and the processor deriving physiological parameters and comparing properties between different spatial locations and variation over time. The semiconductor diodes may comprise vertical cavity surface emitting lasers, and the detection system may comprise single photon avalanche photodiodes. The measurement system may be used to observe eye parameters and differential blood flow. The system may be used with photo-bio-modulation therapy, or it may be used in advanced driver monitoring systems for multiple functions including head pose, eye tracking, facial authentication, and smart restraint control systems.

公开(公告)号：US11709096B2

公开(公告)日：2023-07-25

申请号：US17162273

申请日：2021-01-29

Applicant: HEALTHY.IO LTD.

Inventor： Bernard Burg

IPC: G06T7/90 ,  G01N21/84 ,  G01J3/52 ,  G01N33/487 ,  G01J1/42 ,  G01J3/50 ,  H04N23/88 ,  G01J1/08 ,  G01J3/02 ,  G01N21/78

CPC classification number: G01J3/52 ,  G01J1/42 ,  G01J1/4204 ,  G01J3/50 ,  G01J3/505 ,  G01J3/524 ,  G01N33/487 ,  G06T7/90 ,  H04N23/88 ,  G01J1/08 ,  G01J3/0272 ,  G01N21/78 ,  G01N21/8483 ,  G01N2201/129 ,  G06T2207/10024 ,  G06T2207/30004

Abstract: In one embodiment, a diagnostic system for biological samples is disclosed. The diagnostic system includes a diagnostic instrument, and a portable electronic device. The diagnostic instrument has a reference color bar and a plurality of chemical test pads to receive a biological sample. The portable electronic device includes a digital camera to capture a digital image of the diagnostic instrument in uncontrolled lightning environments, a sensor to capture illuminance of a surface of the diagnostic instrument, a processor coupled to the digital camera and sensor to receive the digital image and the illuminance, and a storage device coupled to the processor. The storage device stores instructions for execution by the processor to process the digital image and the illuminance, to normalize colors of the plurality of chemical test pads and determine diagnostic test results in response to quantification of color changes in the chemical test pads.

公开(公告)号：US20230172455A1

公开(公告)日：2023-06-08

申请号：US18103408

申请日：2023-01-30

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/145 ,  G01N33/15 ,  G01N33/49 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/44 ,  G01N21/88 ,  A61B5/1455 ,  G16Z99/00 ,  A61C19/04 ,  G01N21/3504

CPC classification number: A61B5/0088 ,  A61B5/0075 ,  G01J3/108 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  A61B5/7257 ,  G01J3/0218 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/4547 ,  G01N33/15 ,  G01N33/49 ,  G01J3/2823 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/442 ,  G01N21/88 ,  A61B5/6801 ,  A61B5/7405 ,  A61B5/742 ,  G01N33/025 ,  A61B5/1455 ,  G16Z99/00 ,  A61B5/7203 ,  A61C19/04 ,  G01J3/02 ,  G01N21/3504 ,  G01N2201/129 ,  H01S3/302

Abstract: An optical system operating in the near or short-wave infrared wavelength range identifies an object based on water absorption. The system comprises a light source with modulated light emitting diodes operating at wavelengths near 1090 and 1440 nanometers, corresponding to lower and higher water absorption. The system further comprises one or more wavelength selective filters and a housing that is further coupled to an electrical circuit and a processor. The detection system comprises photodetectors that are synchronized to the light source, and the detection system receives at least a portion of light reflected from the object. The system is configured to identify the object by comparing the reflected light at the first and second wavelength to generate an output value, and then comparing the output value to a threshold. The optical system may be further coupled to a wearable device or a remote sensing system with a time-of-flight sensor.

公开(公告)号：US20190195689A1

公开(公告)日：2019-06-27

申请号：US16291458

申请日：2019-03-04

Applicant: InnoPix, Inc.

Inventor： Gary L. McQuilkin ,  Gregory L. Engelke

IPC: G01J3/12 ,  G01J3/36 ,  G02B5/20 ,  G01J3/02 ,  G01N21/25 ,  G01J3/28 ,  A61B5/00 ,  G01N21/31

CPC classification number: G01J3/12 ,  A61B5/0075 ,  A61B5/14507 ,  A61B5/14542 ,  A61B5/444 ,  A61B2576/00 ,  G01J3/0205 ,  G01J3/0272 ,  G01J3/0297 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1213 ,  G01J2003/123 ,  G01J2003/1239 ,  G01J2003/2826 ,  G01N21/255 ,  G01N21/31 ,  G01N2021/1793 ,  G01N2021/3137 ,  G01N2201/129 ,  G02B5/201

Abstract: An approach to noninvasively and remotely detect the presence, location, and/or quantity of a target substance in a scene via a spectral imaging system comprising a spectral filter array and image capture array. For a chosen target substance, a spectral filter array is provided that is sensitive to selected wavelengths characterizing the electromagnetic spectrum of the target substance. Elements of the image capture array are optically aligned with elements of the spectral filter array to simultaneously capture spectrally filtered images. These filtered images identify the spectrum of the target substance. Program instructions analyze the acquired images to compute information about the target substance throughout the scene. A color-coded output image may be displayed on a smartphone or computing device to indicate spatial and quantitative information about the detected target substance. The system desirably includes a library of interchangeable spectral filter arrays, each sensitive to one or more target substances.

公开(公告)号：US20190183346A1

公开(公告)日：2019-06-20

申请号：US16284514

申请日：2019-02-25

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G16H40/67 ,  G01N33/15 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  A61B5/145 ,  A61B5/1455 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01J3/02 ,  A61C19/04 ,  G01J3/14 ,  G01N33/49 ,  G01N33/44

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0024 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7203 ,  A61B5/7257 ,  A61B5/7405 ,  A61B5/742 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/146 ,  A61B2576/02 ,  A61C1/0046 ,  A61C19/04 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/1838 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J2003/2826 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/9508 ,  G01N33/02 ,  G01N33/025 ,  G01N33/15 ,  G01N33/442 ,  G01N33/49 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N2201/061 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  G06F19/00 ,  G16H40/67 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302

Abstract: A smart phone or tablet includes laser diodes, at least some of which may be pulsed and generate near-infrared light and include Bragg reflectors to direct light to tissue/skin. An array of laser diodes generates near-infrared light and has an assembly in front of the array that forms the light into a plurality of spots on the tissue/skin. A receiver includes detectors that receive light reflected from the tissue/skin. An infrared camera receives light reflected from the tissue/skin and generates data based on the received light. The smart phone or tablet is configured to generate a two-dimensional or three-dimensional image using at least part of the data from the infrared camera.

公开(公告)号：US20180313804A1

公开(公告)日：2018-11-01

申请号：US15817238

申请日：2017-11-19

Applicant: The Regents of the University of California

Inventor： Cristian ROGEL-CASTILLO ,  Alyson MITCHELL

IPC: G01N33/02 ,  G01N21/359 ,  G01N21/3563 ,  G01N21/95

CPC classification number: G01N33/025 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/95 ,  G01N2021/8405 ,  G01N2021/8466 ,  G01N2201/10 ,  G01N2201/129

Abstract: Provided are methods and systems for efficiently and non-invasively identifying nuts (e.g., almonds) having concealed damage using near infrared scanning. The methods identify nuts having concealed damage with a certainty greater than 90% and an error rate that is less than 10%.