公开(公告)号：US12188820B2

公开(公告)日：2025-01-07

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

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：US11920980B2

公开(公告)日：2024-03-05

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.