Patents by Inventor Aiqiang Yang

Aiqiang Yang 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: 20230319205
    Abstract: In one example, a device to transfer multiple first positions of an edge guide movable back and forth across a print media input tray to corresponding multiple second positions of an optical marker movable back and forth along a scan line next to a scan bed located near the input tray. The device includes a first part connected to or integral with the edge guide, a second part connected to or integral with the marker, and a mechanical link linking the first part and the second part to convert linear motion of the edge guide back and forth across the tray to linear motion of the marker back and forth along the scan line.
    Type: Application
    Filed: September 7, 2020
    Publication date: October 5, 2023
    Inventors: Aiqiang YANG, Kok Chai CHONG, Suriyaprakash SARAVANAN
  • Patent number: 11647137
    Abstract: A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 9, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Suriyaprakash Saravanan, Kok Chai Chong, Aiqiang Yang
  • Publication number: 20230051748
    Abstract: A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.
    Type: Application
    Filed: January 30, 2020
    Publication date: February 16, 2023
    Inventors: Suriyaprakash Saravanan, Kok Chai Chong, Aiqiang Yang
  • Publication number: 20230001717
    Abstract: Techniques for determination of size of printable medium are described. In an example, a printing device includes an adjuster that is movable based on a size of a printable medium to be fed to the printing device. A first element is coupled to the adjuster and moves with the adjuster to indicate a position of the adjuster. A second element is movable relative to the adjuster. A position signal indicative of a distance between the second element and the first element is generated. The position signal can be used to determine the size of the printable medium.
    Type: Application
    Filed: October 28, 2019
    Publication date: January 5, 2023
    Inventors: AiQiang Yang, Inn Chyun Goh, Yi Wan, Choon Siang Peck, Kok Chai Chong
  • Patent number: 7537334
    Abstract: In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: May 26, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Aiqiang Yang, Michael Nordlund, Manish Agarwal, Sing-Yan Wan, Ban-Ho Chong
  • Publication number: 20070064079
    Abstract: In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 22, 2007
    Inventors: Aiqiang Yang, Michael Nordlund, Manish Agarwal, Sing-Yan Wan, Ban-Ho Chong