Patents by Inventor Liang-Chi Chiu

Liang-Chi Chiu 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: 11222197
    Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: January 11, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Liang-Chi Chiu, Yu-Han Chen, Ming-Tsan Kao
  • Publication number: 20190156111
    Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.
    Type: Application
    Filed: January 21, 2019
    Publication date: May 23, 2019
    Inventors: LIANG-CHI CHIU, YU-HAN CHEN, MING-TSAN KAO
  • Publication number: 20140118131
    Abstract: There is provided a monitoring and warning system for vehicles including a first image sensor, a second image sensor, a warning unit, an expression recognition unit and a sign recognition unit. The first image sensor captures a first image frame toward a driver seat direction. The second image sensor captures a second image frame toward a forward direction. The expression recognition unit recognizes a sleep expression according to the first image frame to accordingly control the warning unit to trigger a first warning. The sign recognition unit recognizes a stop sign according to the second image frame to accordingly control the warning unit to trigger a second warning.
    Type: Application
    Filed: October 15, 2013
    Publication date: May 1, 2014
    Applicant: PixArt Imaging Inc.
    Inventors: Liang-Chi CHIU, Yu-Han CHEN, Ming-Tsan KAO
  • Publication number: 20140118276
    Abstract: There is provided a touch system adapted to touch control and hover control including a touch sensing device, a hover sensing device and a processing unit. The touch sensing device is configured to sense touch control information. The hover sensing device is configured to sense hover control information. The processing unit is coupled to the touch sensing device and the hover sensing device and configured to activate the hover sensing device when the touch control information indicates a predetermined multi-finger gesture.
    Type: Application
    Filed: October 16, 2013
    Publication date: May 1, 2014
    Applicant: PixArt Imaging Inc.
    Inventors: Liang-Chi CHIU, Ming-Tsan KAO
  • Publication number: 20140112554
    Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 24, 2014
    Applicant: PixArt Imaging Inc
    Inventors: Liang-Chi CHIU, Yu-Han CHEN, Ming-Tsan KAO
  • Publication number: 20130243330
    Abstract: A method and an apparatus for constructing an image blur pyramid, and an image feature extracting circuit are disclosed. The image blur pyramid construction apparatus comprises a first image blur circuit, a second image blur circuit and an image sub-sampler. The first image blur circuit and the second image blur circuit simultaneously generate a first interval and a second interval in the same octave according to an input image, a first filter and a second filter. The dimension of the second filter is greater than that of the first filter. The image sub-sampler couples with the second image blur circuit and down samples the second interval to generate a sub-sample image.
    Type: Application
    Filed: August 20, 2012
    Publication date: September 19, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Liang-Chi Chiu, Yen-Chung Chang, Jiun-Yan Chen, Jwu-Sheng Hu, Tian-Sheuan Chang