-
公开(公告)号：US12099003B2
公开(公告)日：2024-09-24
申请号：US18312241
申请日：2023-05-04
Applicant: VIAVI Solutions Inc.
Inventor： ChangMeng Hsiung , Christopher G. Pederson , Marc K. Von Gunten , Lan Sun
IPC: G01N21/35 , G01J3/10 , G01N21/25 , G01N21/359 , G06F18/2411 , G06F18/2433 , G06N20/00 , G06V20/69 , G16C20/20 , G16C20/70
CPC classification number: G01N21/35 , G01J3/108 , G01N21/253 , G01N21/359 , G06F18/2411 , G06F18/2433 , G06N20/00 , G06V20/698 , G16C20/20 , G16C20/70 , G01N2201/129
Abstract: A device may receive information identifying results of a set of spectroscopic measurements of a training set of known samples and a validation set of known samples. The device may generate a classification model based on the information identifying the results of the set of spectroscopic measurements, wherein the classification model includes at least one class relating to a material of interest for a spectroscopic determination, and wherein the classification model includes a no-match class relating to at least one of at least one material that is not of interest or a baseline spectroscopic measurement. The device may receive information identifying a particular result of a particular spectroscopic measurement of an unknown sample. The device may determine whether the unknown sample is included in the no-match class using the classification model. The device may provide output indicating whether the unknown sample is included in the no-match class.
-
公开(公告)号：US12097039B2
公开(公告)日：2024-09-24
申请号：US16523167
申请日：2019-07-26
Applicant: VIAVI Solutions Inc.
Inventor： Lan Sun , Chang Meng Hsiung
IPC: A61B5/00
CPC classification number: A61B5/443 , A61B5/0002 , A61B5/0075 , A61B5/4519 , A61B5/486 , A61B5/4875 , A61B5/6815 , A61B5/6824 , A61B5/6826 , A61B5/6828
Abstract: A device may obtain absorption spectra data associated with tissue of a subject. The device may determine, based on the absorption spectra data, an estimate of a water content associated with the tissue. The device may determine, based on the estimate of the water content, an estimate of a hydration level of the subject. The device may perform one or more actions based on the estimate of the hydration level of the subject.
-
公开(公告)号：US11918328B2
公开(公告)日：2024-03-05
申请号：US17823083
申请日：2022-08-30
Applicant: VIAVI Solutions Inc.
Inventor： Chang Meng Hsiung , Lan Sun , Marc K. Von Gunten
CPC classification number: A61B5/02416 , A61B5/681
Abstract: A device may determine end-of-phase information for a plurality of wavelength channels of photoplethysmography (PPG) data. The device may calculate a set of baseline correction points for each wavelength channel of the plurality of wavelength channels. The set of baseline correction points may be calculated based on end-of-phase information for a wavelength channel of the plurality of wavelength channels and PPG data associated with the wavelength channel. The device may perform a baseline correction for each wavelength channel of the plurality of wavelength channels. A baseline correction may be performed for the wavelength channel based on the set of baseline correction points associated with the wavelength channel and the PPG data associated with the wavelength channel. The device may generate a baseline corrected heartbeat profile using a principal component analysis of a result of baseline correcting each wavelength channel of the plurality of wavelength channels.
-
公开(公告)号：US11844595B2
公开(公告)日：2023-12-19
申请号：US17823083
申请日：2022-08-30
Applicant: VIAVI Solutions Inc.
Inventor： Chang Meng Hsiung , Lan Sun , Marc K. Von Gunten
CPC classification number: A61B5/02416 , A61B5/681
Abstract: A device may determine end-of-phase information for a plurality of wavelength channels of photoplethysmography (PPG) data. The device may calculate a set of baseline correction points for each wavelength channel of the plurality of wavelength channels. The set of baseline correction points may be calculated based on end-of-phase information for a wavelength channel of the plurality of wavelength channels and PPG data associated with the wavelength channel. The device may perform a baseline correction for each wavelength channel of the plurality of wavelength channels. A baseline correction may be performed for the wavelength channel based on the set of baseline correction points associated with the wavelength channel and the PPG data associated with the wavelength channel. The device may generate a baseline corrected heartbeat profile using a principal component analysis of a result of baseline correcting each wavelength channel of the plurality of wavelength channels.
-
Patent Agency Ranking
公开(公告)号：US11719628B2
公开(公告)日：2023-08-08
申请号：US17248867
申请日：2021-02-11
Applicant: VIAVI Solutions Inc.
Inventor： Chang Meng Hsiung , Lan Sun
CPC classification number: G01N21/274 , G01J3/0275 , G01N2201/129
Abstract: A device may receive a master data set for a first spectroscopic model; receive a target data set for a target population associated with the first spectroscopic model to update the first spectroscopic model; generate a training data set that includes the master data set and first data from the target data set; generate a validation data set that includes second data from the target data set and not the master data set; generate, using cross-validation and using the training data set and the validation data set, a second spectroscopic model that is an update of the first spectroscopic model; and provide the second spectroscopic model.
-
公开(公告)号：US11656174B2
公开(公告)日：2023-05-23
申请号：US17248333
申请日：2021-01-20
Applicant: VIAVI Solutions Inc.
Inventor： Chang Meng Hsiung , Lan Sun
IPC: G16C20/70 , G01N21/35 , G16C20/20 , G06N20/00 , G01J3/10 , G01N21/25 , G01N21/359 , G06V20/69 , G06F18/2411 , G06F18/2433
CPC classification number: G01N21/35 , G01J3/108 , G01N21/253 , G01N21/359 , G06F18/2411 , G06F18/2433 , G06N20/00 , G06V20/698 , G16C20/20 , G16C20/70 , G01N2201/129
Abstract: In some implementations, a device may determine that an unknown sample is an outlier sample by using an aggregated classification model. The device may determine that one or more spectroscopic measurements are not performed accurately based on determining that the unknown sample is the outlier sample. The device may cause one or more actions based on determining the one or more spectroscopic measurements are not performed accurately.
-
27.发明授权公开(公告)号：US10969331B2
公开(公告)日：2021-04-06
申请号：US16032978
申请日：2018-07-11
Applicant: VIAVI Solutions Inc.
Inventor： Lan Sun , Changmeng Hsiung
Abstract: A device may obtain a master beta coefficient of a master calibration model associated with a master instrument. The master beta coefficient may be at a grid of a target instrument. The device may perform constrained optimization of an objective function, in accordance with a set of constraints, in order to determine a pair of transferred beta coefficients. The constrained optimization may be performed based on an initial pair of transferred beta coefficients, the master beta coefficient, and spectra associated with a scouting set. The device may determine, based on the pair of transferred beta coefficients, a transferred beta coefficient. The device may determine a final transferred beta coefficient based on a set of transferred beta coefficients including the transferred beta coefficient. The final transferred beta coefficient may be associated with generating a transferred calibration model, corresponding to the master calibration model, for use by the target instrument.
-
公开(公告)号：US10309894B2
公开(公告)日：2019-06-04
申请号：US15247554
申请日：2016-08-25
Applicant: Viavi Solutions Inc.
Inventor： Changmeng Hsiung , Christopher G. Pederson , Peng Zou , Lan Sun
Abstract: A device may receive information identifying results of a spectroscopic measurement of an unknown sample. The device may perform a first classification of the unknown sample based on the results of the spectroscopic measurement and a global classification model. The device may generate a local classification model based on the first classification. The device may perform a second classification of the unknown sample based on the results of the spectroscopic measurement and the local classification model. The device may provide information identifying a class associated with the unknown sample based on performing the second classification.
-
29.发明申请公开(公告)号：US20180322399A1
公开(公告)日：2018-11-08
申请号：US15586678
申请日：2017-05-04
Applicant: Viavi Solutions Inc.
Inventor： Changmeng HSIUNG , Peng Zou , Lan Sun
CPC classification number: G06N5/04 , G06N99/005
Abstract: A device may receive training spectral data associated with a manufacturing process that transitions from an unsteady state to a steady state. The device may generate, based on the training spectral data, a plurality of iterations of a support vector machine (SVM) classification model. The device may determine, based on the plurality of iterations of the SVM classification model, a plurality of predicted transition times associated with the manufacturing process. A predicted transition time, of the plurality of predicted transition times, may identify a time, during the manufacturing process, that a corresponding iteration of the SVM classification model predicts that the manufacturing process transitioned from the unsteady state to the steady state. The device may generate, based on the plurality of predicted transition times, a final SVM classification model associated with determining whether the manufacturing process has reached the steady state.
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.019 seconds)
