Patents by Inventor Chan-Hsuan Yu

Chan-Hsuan Yu 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: 11182923
    Abstract: A method, a computing device, and a system for monitoring postures are proposed. The method includes the following steps. An image sequence captured on a monitored area including a monitored subject is received. A first stable value corresponding to a first stage of stability of the monitored subject is detected, where the first stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a first predetermined time period. A second stable value corresponding to a second stage of stability of the monitored subject is detected, where the second stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a second predetermined time period. The first stable value and the second stable value are compared to accordingly determine whether a posture of the monitored subject has changed.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: November 23, 2021
    Assignee: Wistron Corporation
    Inventors: Ting-Feng Ju, Chan-Hsuan Yu, Kuo-Hsien Lu
  • Publication number: 20200302635
    Abstract: A method, a computing device, and a system for monitoring postures are proposed. The method includes the following steps. An image sequence captured on a monitored area including a monitored subject is received. A first stable value corresponding to a first stage of stability of the monitored subject is detected, where the first stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a first predetermined time period. A second stable value corresponding to a second stage of stability of the monitored subject is detected, where the second stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a second predetermined time period. The first stable value and the second stable value are compared to accordingly determine whether a posture of the monitored subject has changed.
    Type: Application
    Filed: July 11, 2019
    Publication date: September 24, 2020
    Applicant: Wistron Corporation
    Inventors: Ting-Feng Ju, Chan-Hsuan Yu, Kuo-Hsien Lu
  • Patent number: 10037107
    Abstract: An optical touch device and a sensing method thereof are provided. The optical touch device includes a plurality of optical sensors and a processing unit. The optical sensors are arranged around a touch plane and are spaced from each other. The two adjacent optical sensors located at one side of the touch plane are defined as one set of an optical sensing module, such that the optical sensors are paired to form multiple sets of the optical sensing modules. The processing unit generates a plurality of touch coordinates data corresponding to the plurality sets of the optical sensing modules according to the optical touch data, and determines whether the touch coordinates data corresponding to each set of the optical sensing modules is in at least one touch-excluded area corresponding to each set of the optical sensing modules, and respectively excludes the touch coordinates data in the touch-excluded area.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: July 31, 2018
    Assignee: Wistron Corporation
    Inventors: Bo-Yi Wu, Yu-Yen Chen, Kuo-Hsien Lu, Wei-Kuo Kan, Kuo-Ting Huang, Ching-An Cho, Chih-Hao Chiu, Chan-Hsuan Yu, You-Jyun Syu
  • Patent number: 9535535
    Abstract: A touch point sensing method and an optical touch system are provided. The optical touch system includes a first lens and a second lens. The touch point sensing method includes the following steps. Images including at least two touch objects in a touch detecting area captured by the first lens and the second lens are obtained and analyzed. Based on the obtained images, distance values between the first touch signal group at the first instant and the first and second touch signal groups at the second instant are calculated for determining whether the first and second touch signal groups at the second instant are overlapped. When the first and the second touch signal groups at the second instant are overlapped, locations of the touch signals in the first touch signal groups and in the second touch signal groups are exchanged.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 3, 2017
    Assignee: Wistron Corporation
    Inventor: Chan-Hsuan Yu
  • Publication number: 20160334937
    Abstract: An optical touch device and a sensing method thereof are provided. The optical touch device includes a plurality of optical sensors and a processing unit. The optical sensors are arranged around a touch plane and are spaced from each other. The two adjacent optical sensors located at one side of the touch plane are defined as one set of an optical sensing module, such that the optical sensors are paired to form multiple sets of the optical sensing modules. The processing unit generates a plurality of touch coordinates data corresponding to the plurality sets of the optical sensing modules according to the optical touch data, and determines whether the touch coordinates data corresponding to each set of the optical sensing modules is in at least one touch-excluded area corresponding to each set of the optical sensing modules, and respectively excludes the touch coordinates data in the touch-excluded area.
    Type: Application
    Filed: August 10, 2015
    Publication date: November 17, 2016
    Inventors: Bo-Yi Wu, Yu-Yen Chen, Kuo-Hsien Lu, Wei-Kuo Kan, Kuo-Ting Huang, Ching-An Cho, Chih-Hao Chiu, Chan-Hsuan Yu, You-Jyun Syu
  • Publication number: 20160162115
    Abstract: A touch point sensing method and an optical touch system are provided. The optical touch system includes a first lens and a second lens. The touch point sensing method includes the following steps. Images including at least two touch objects in a touch detecting area captured by the first lens and the second lens are obtained and analyzed. Based on the obtained images, distance values between the first touch signal group at the first instant and the first and second touch signal groups at the second instant are calculated for determining whether the first and second touch signal groups at the second instant are overlapped. When the first and the second touch signal groups at the second instant are overlapped, locations of the touch signals in the first touch signal groups and in the second touch signal groups are exchanged.
    Type: Application
    Filed: March 19, 2015
    Publication date: June 9, 2016
    Inventor: Chan-Hsuan Yu