Patents by Inventor Heng Yew Lim

Heng Yew Lim 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).

  • Publication number: 20240086664
    Abstract: Embodiments of the disclosure provide for improved print position compensation, for example to improve accuracy of print job(s) performed by a printer. The print position compensation enables an offset of the time until printing occurs on a print media to account for changes and/or erroneous movement in a print media, such as due to slippage and/or other results of a force applied to the print media. Particular embodiments determine data values derived both for an output phase and a retraction phase of the printer's operation. Various embodiments generate a print position compensation based on sensor-based edge position distances determined during each of a media output phase and a media retraction phase. Alternatively or additionally various embodiments generate a print position compensation based on sensor-based media movement phase timestamp differentials determined during each of a media output phase and a media retraction phase.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Khoon NG, Heng Yew LIM, Shufeng ZHENG, Jang Wei CHAO
  • Patent number: 11861435
    Abstract: Embodiments of the disclosure provide for improved print position compensation, for example to improve accuracy of print job(s) performed by a printer. The print position compensation enables an offset of the time until printing occurs on a print media to account for changes and/or erroneous movement in a print media, such as due to slippage and/or other results of a force applied to the print media. Particular embodiments determine data values derived both for an output phase and a retraction phase of the printer's operation. Various embodiments generate a print position compensation based on sensor-based edge position distances determined during each of a media output phase and a media retraction phase. Alternatively or additionally various embodiments generate a print position compensation based on sensor-based media movement phase timestamp differentials determined during each of a media output phase and a media retraction phase.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: January 2, 2024
    Assignee: Hand Held Products, Inc.
    Inventors: Cheng Khoon Ng, Heng Yew Lim, Shufeng Zheng, Jang Wei Chao
  • Publication number: 20230054842
    Abstract: Embodiments of the disclosure provide for improved print position compensation, for example to improve accuracy of print job(s) performed by a printer. The print position compensation enables an offset of the time until printing occurs on a print media to account for changes and/or erroneous movement in a print media, such as due to slippage and/or other results of a force applied to the print media. Particular embodiments determine data values derived both for an output phase and a retraction phase of the printer's operation. Various embodiments generate a print position compensation based on sensor-based edge position distances determined during each of a media output phase and a media retraction phase. Alternatively or additionally various embodiments generate a print position compensation based on sensor-based media movement phase timestamp differentials determined during each of a media output phase and a media retraction phase.
    Type: Application
    Filed: August 26, 2022
    Publication date: February 23, 2023
    Inventors: Cheng Khoon NG, Heng Yew LIM, Shufeng ZHENG, Jang Wei CHAO
  • Patent number: 11468277
    Abstract: Printers capable of determining a media type of a media and associated methods are provided. An example method includes scanning a media with a verifier associated with the printer to generate at least two consecutive windows of the media. The example method further includes determining a vertical length of a captured image based on a comparison of image characteristic values captured in the at least two consecutive windows. The example method further includes determining a media characteristic associated with the media based at least on the captured image and the vertical length and one or more stored media profiles. The example method further includes calibrating the printer based on the media characteristic.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 11, 2022
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Heng Yew Lim, Ying Cao, Phek Thong Lee, Cheng Khoon Ng, WenWei Zhang
  • Patent number: 11461604
    Abstract: Embodiments of the disclosure provide for improved print position compensation, for example to improve accuracy of print job(s) performed by a printer. The print position compensation enables an offset of the time until printing occurs on a print media to account for changes and/or erroneous movement in a print media, such as due to slippage and/or other results of a force applied to the print media. Particular embodiments determine data values derived both for an output phase and a retraction phase of the printer's operation. Various embodiments generate a print position compensation based on sensor-based edge position distances determined during each of a media output phase and a media retraction phase. Alternatively or additionally various embodiments generate a print position compensation based on sensor-based media movement phase timestamp differentials determined during each of a media output phase and a media retraction phase.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: October 4, 2022
    Assignee: Datamax-O'Neil Corporation
    Inventors: Cheng Khoon Ng, Heng Yew Lim, Shufeng Zheng, Jang Wei Chao
  • Publication number: 20220212483
    Abstract: Examples of the present disclosure relate generally to a printing apparatus and, more particularly, to apparatuses, systems, and methods for printing utilizing laser print head and reactive media.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 7, 2022
    Inventors: Sze Ping CHING, Suraini Binte SAPTU, Phek Thong LEE, Cheng Khoon NG, Deenadayalan DURAIRAJU, Florante Sumalinog GO, David Pratama DJAYAPUTRA, Eng Hing LIM, Rajan NARAYANASWAMI, Yong Xing SHU, Sebastien Michel Marie Joseph D'ARMANCOURT, Harry Nicholas Makabali LANSANGAN, Thomas Axel Jonas CELINDER, WenWei ZHANG, Brian H. Nelson, Timothy Allen GOOD, Norman DAVIES, David CHANEY, Teck Siong SOH, Heng Yew LIM, Kar Boon Oung, Zhiwei WANG, Fong Yin LAU, Hao ZHENG, Henry G. ARDIFF, Giri Babu GUNTIPALLI, Praveen ALLAKA, Zyn Ming LAI, Jang Wei CHAO, Jose F. SANCHEZ GUTIERREZ, Chin Chean LIM
  • Publication number: 20210295117
    Abstract: Printers capable of determining a media type of a media and associated methods are provided. An example method includes scanning a media with a verifier associated with the printer to generate at least two consecutive windows of the media. The example method further includes determining a vertical length of a captured image based on a comparison of image characteristic values captured in the at least two consecutive windows. The example method further includes determining a media characteristic associated with the media based at least on the captured image and the vertical length and one or more stored media profiles. The example method further includes calibrating the printer based on the media characteristic.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: Datamax-O'Neil Corporation
    Inventors: Heng Yew LIM, Ying CAO, Phek Thong LEE, Cheng Khoon NG, WenWei ZHANG
  • Publication number: 20210256330
    Abstract: Printers capable of determining a media type of a media and associated methods are provided. An example method includes scanning a media with a verifier associated with the printer to generate at least two consecutive windows of the media. The example method further includes determining a vertical length of a captured image based on a comparison of image characteristic values captured in the at least two consecutive windows. The example method further includes determining a media characteristic associated with the media based at least on the captured image and the vertical length and one or more stored media profiles. The example method further includes calibrating the printer based on the media characteristic.
    Type: Application
    Filed: February 17, 2020
    Publication date: August 19, 2021
    Applicant: Datamax-O'Neil Corporation
    Inventors: Heng Yew LIM, Ying CAO, Phek Thong LEE, Cheng Khoon NG, WenWei ZHANG
  • Patent number: 11074487
    Abstract: Printers capable of determining a media type of a media and associated methods are provided. An example method includes scanning a media with a verifier associated with the printer to generate at least two consecutive windows of the media. The example method further includes determining a vertical length of a captured image based on a comparison of image characteristic values captured in the at least two consecutive windows. The example method further includes determining a media characteristic associated with the media based at least on the captured image and the vertical length and one or more stored media profiles. The example method further includes calibrating the printer based on the media characteristic.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: July 27, 2021
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Heng Yew Lim, Ying Cao, Phek Thong Lee, Cheng Khoon Ng, WenWei Zhang