Patents by Inventor Wen-Kuong LIU

Wen-Kuong LIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11636583
    Abstract: A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has an unacceptable defect with respect to the predefined auditory standard is determined by analyzing a distribution of signal strength according to the spectrogram.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: April 25, 2023
    Assignee: WISTRON CORPORATION
    Inventors: Jie-Ci Yang, Meng-Chao Kao, Wen-Kuong Liu, Tsang-Hsing Lee, Li-Ping Pan
  • Patent number: 11326935
    Abstract: A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has an unacceptable defect with respect to the predefined auditory standard is determined through computer vision according to the spectrogram.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: May 10, 2022
    Assignee: WISTRON CORPORATION
    Inventors: Jie-Ci Yang, Meng-Chao Kao, Wen-Kuong Liu
  • Publication number: 20210302224
    Abstract: A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has an unacceptable defect with respect to the predefined auditory standard is determined by analyzing a distribution of signal strength according to the spectrogram.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 30, 2021
    Inventors: Jie-Ci YANG, Meng-Chao KAO, Wen-Kuong LIU, Tsang-Hsing LEE, Li-Ping PAN
  • Publication number: 20210116293
    Abstract: A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has an unacceptable defect with respect to the predefined auditory standard is determined through computer vision according to the spectrogram.
    Type: Application
    Filed: November 4, 2020
    Publication date: April 22, 2021
    Applicant: Wistron Corporation
    Inventors: Jie-Ci Yang, Meng-Chao Kao, Wen-Kuong Liu
  • Patent number: 10863294
    Abstract: A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has a defect is determined through computer vision according to the spectrogram.
    Type: Grant
    Filed: December 8, 2019
    Date of Patent: December 8, 2020
    Assignee: Wistron Corporation
    Inventors: Jie-Ci Yang, Meng-Chao Kao, Wen-Kuong Liu, Tsang-Hsing Lee, Li-Ping Pan
  • Patent number: 9869970
    Abstract: A hologram module includes a phosphor layer and a rainbow hologram sheet. The phosphor layer has a phosphor array structure. The rainbow hologram sheet has a first display layer and a second display layer. The first display layer is disposed on the phosphor layer and has a first barcode array corresponding to the phosphor array structure. The second display layer is disposed on the first display layer and has a second barcode array corresponding to the first barcode array. The phosphor array structure, the first barcode array and the second barcode array are chromatic. A color of the phosphor array structure meets with a color combined by the first barcode array and the second barcode array so as to display a hologram image converted from light emitted by the phosphor array structure via the first and second barcode arrays.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: January 16, 2018
    Assignee: WISTRON CORP.
    Inventors: Yu-Wei Chiu, Wen-Kuong Liu
  • Publication number: 20160231707
    Abstract: A hologram module includes a phosphor layer and a rainbow hologram sheet. The phosphor layer has a phosphor array structure. The rainbow hologram sheet has a first display layer and a second display layer. The first display layer is disposed on the phosphor layer and has a first barcode array corresponding to the phosphor array structure. The second display layer is disposed on the first display layer and has a second barcode array corresponding to the first barcode array. The phosphor array structure, the first barcode array and the second barcode array are chromatic. A color of the phosphor array structure meets with a color combined by the first barcode array and the second barcode array so as to display a hologram image converted from light emitted by the phosphor array structure via the first and second barcode arrays.
    Type: Application
    Filed: June 10, 2015
    Publication date: August 11, 2016
    Inventors: Yu-Wei CHIU, Wen-Kuong LIU