Patents by Inventor Shin-Min Chao

Shin-Min Chao 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: 8842270
    Abstract: A method of bright spot defect detection for a polarizer is to be performed by an inspection device and includes the steps of: a) obtaining gray values for pixels of an image of a detected region, that contains a target spot, on the polarizer; b) obtaining a gray value variation score from the gray values obtained for the detected region, the gray value variation score being indicative of gray value variation among the pixels of the image of the detected region; and c) comparing the gray value variation score obtained for the detected region with a threshold value to obtain a comparison result, and determining whether the target spot is a bright spot according to the comparison result.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: September 23, 2014
    Assignee: BENQ Materials Corp.
    Inventor: Shin-Min Chao
  • Publication number: 20120212741
    Abstract: A method of bright spot defect detection for a polarizer is to be performed by an inspection device and includes the steps of: a) obtaining gray values for pixels of an image of a detected region, that contains a target spot, on the polarizer; b) obtaining a gray value variation score from the gray values obtained for the detected region, the gray value variation score being indicative of gray value variation among the pixels of the image of the detected region; and c) comparing the gray value variation score obtained for the detected region with a threshold value to obtain a comparison result, and determining whether the target spot is a bright spot according to the comparison result.
    Type: Application
    Filed: August 19, 2011
    Publication date: August 23, 2012
    Applicant: BENQ MATERIALS CORP.
    Inventor: Shin-Min Chao
  • Patent number: 8135173
    Abstract: An eye-tracking method includes: acquiring an image of an eye of a user captured by an image-capturing module while the user is gazing at a gazing location on a screen module and a pair of light sources emit light toward the eye of the user; determining an angle and an area based on positions of a pupil and two reflected light spots on the eye of the user, wherein the angle and the area correspond to the gazing location; determining coordinates on the screen module based on the angle and the area, wherein the coordinates correspond to the gazing location; and performing an operation associated with the coordinates. An eye-tracking system for implementing the eye-tracking method is also disclosed. A correcting method and a correcting module for the eye-tracking system are further disclosed.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: March 13, 2012
    Assignee: Utechzone Co., Ltd.
    Inventor: Shin-Min Chao
  • Patent number: 7832866
    Abstract: An eye-tracking method includes acquiring an image of an eye of a user, identifying a pupil of and a reflected light spot on the eye from the acquired image, determining a distance of the reflected light spot from a reference point on the pupil and an angle of the reflected light spot from an axis passing through the reference point on the pupil, determining a gazing point based on the distance and the angle and a pre-established set of data, and performing an operation associated with the gazing point. A system for implementing the eye-tracking method is also disclosed.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: November 16, 2010
    Assignee: Utechzone Co., Ltd.
    Inventor: Shin-Min Chao
  • Publication number: 20100245767
    Abstract: An eye-tracking method includes: acquiring an image of an eye of a user captured by an image-capturing module while the user is gazing at a gazing location on a screen module and a pair of light sources emit light toward the eye of the user; determining an angle and an area based on positions of a pupil and two reflected light spots on the eye of the user, wherein the angle and the area correspond to the gazing location; determining coordinates on the screen module based on the angle and the area, wherein the coordinates correspond to the gazing location; and performing an operation associated with the coordinates. An eye-tracking system for implementing the eye-tracking method is also disclosed. A correcting method and a correcting module for the eye-tracking system are further disclosed.
    Type: Application
    Filed: August 28, 2009
    Publication date: September 30, 2010
    Applicant: UTECHZONE CO., LTD.
    Inventor: Shin-Min CHAO
  • Publication number: 20100103375
    Abstract: An eye-tracking method includes acquiring an image of an eye of a user, identifying a pupil of and a reflected light spot on the eye from the acquired image, determining a distance of the reflected light spot from a reference point on the pupil and an angle of the reflected light spot from an axis passing through the reference point on the pupil, determining a gazing point based on the distance and the angle and a pre-established set of data, and performing an operation associated with the gazing point. A system for implementing the eye-tracking method is also disclosed.
    Type: Application
    Filed: July 20, 2009
    Publication date: April 29, 2010
    Applicant: UTECHZONE CO., LTD.
    Inventor: Shin-Min CHAO