公开(公告)号：US12134268B2

公开(公告)日：2024-11-05

申请号：US17868080

申请日：2022-07-19

Applicant: SEMES CO., LTD.

Inventor： Dong Hyun Jun ,  Woon Sang Baek ,  Sang Hyuk Yun ,  Keun Hwa Yang ,  Hyung Suk Lee ,  Cheol Hyung Cho

IPC: B41J2/045

Abstract: The inventive concept provides an inkjet printing method. The inkjet printing method for discharging an ink on a substrate using a head having a plurality of nozzles formed thereon includes determining a grade of nozzles by measuring a discharge performance of the nozzles, which is a grading step; selecting a use nozzle that can participate in printing the substrate among the nozzles based on the grade determined at the grading step, which is a nozzle selecting step; and discharging the ink on the substrate using at least one nozzle among use nozzles, which is a printing step.

公开(公告)号：US20240142936A1

公开(公告)日：2024-05-02

申请号：US18105739

申请日：2023-02-03

Applicant: SEMES CO., LTD.

Inventor： Dong Hyun Jun

IPC: G05B19/406 ,  G05B13/02

CPC classification number: G05B19/406 ,  G05B13/0265 ,  G05B2219/45031

Abstract: An anomaly detection method capable of minimizing the consumption of computing resources and time is provided. The anomaly detection method includes: learning a first classifier, which includes an encoder and a decoder, using a plurality of training data, which are classified into a plurality of first subsets; extracting features from the plurality of training data by computing the plurality of training data with the encoder of the learned first classifier; reconstructing the plurality of training data into a plurality of second subsets by clustering the plurality of training data based on the extracted features; learning a plurality of second classifiers, which correspond to the plurality of second subsets, using the second subsets; and detecting any abnormality in input data using the plurality of second classifiers.