公开(公告)号：US20230204502A1

公开(公告)日：2023-06-29

申请号：US18163712

申请日：2023-02-02

Applicant: VIAVI Solutions Inc.

Inventor： ChangMeng HSIUNG ,  Lan SUN ,  Edward GOODING ,  Michael KLIMEK

IPC: G01N21/3577 ,  G01N21/359 ,  G01N33/15 ,  G01N1/38

CPC classification number: G01N21/3577 ,  G01N21/359 ,  G01N33/15 ,  G01N1/38

Abstract: A device may receive spectroscopic data associated with a dynamic process. The device may identify a pseudo steady state end point based on the spectroscopic data. The pseudo steady state end point may indicate an end of a pseudo steady state associated with the dynamic process. The device may identify a reference block and a test block based on the pseudo steady state end point, and may generate a raw detection signal associated with the reference block and a raw detection signal associated with the test block. The device may generate an averaged statistical detection signal based on the raw detection signal associated with the reference block and the raw detection signal associated with the test block, and may determine whether the dynamic process has reached a steady state based on the averaged statistical detection signal.

公开(公告)号：US20240167872A1

公开(公告)日：2024-05-23

申请号：US18429532

申请日：2024-02-01

Applicant: VIAVI Solutions Inc.

Inventor： Lan SUN ,  Chang Meng HSIUNG ,  Edward GOODING

IPC: G01J3/28

CPC classification number: G01J3/28 ,  G01J2003/2836 ,  G01J2003/284 ,  G01J2003/2886

Abstract: In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.

公开(公告)号：US20230243699A1

公开(公告)日：2023-08-03

申请号：US17805099

申请日：2022-06-02

Applicant: VIAVI Solutions Inc.

Inventor： Lan SUN ,  Chang Meng HSIUNG ,  Edward GOODING

IPC: G01J3/28

CPC classification number: G01J3/28 ,  G01J2003/2836 ,  G01J2003/284 ,  G01J2003/2886

Abstract: In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.