Patents by Inventor Yu-Kuen Tsai

Yu-Kuen Tsai 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: 11029414
    Abstract: Electronic devices and methods for providing location information are provided, of which a representative method includes: generating sensor readings corresponding to sensed motion of the electronic device; determining a reference location information; computing a GPS-fused location information based on the reference location information and the sensor readings; generating a GPS-required event based on a change of the GPS-fused location information; generating a GPS-not-required event responsive to the reference location information being determined; receiving the GPS-fused location information and one of either the GPS-required event or the GPS-not-required event; responsive to the GPS-required event being received, operating the GPS receiver in a location information-acquiring mode during which the GPS receiver generates geographical location readings; and responsive to the GPS-not-required event being received, operating the GPS receiver in a power-saving mode during which the GPS receiver is deactivated.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: June 8, 2021
    Assignee: CM HK LIMITED
    Inventors: Yun-Chia Hsieh, Kuo-Ting Hu, Yu-Kuen Tsai, Ching-Lin Hsieh, Chien-Chih Hsu
  • Publication number: 20210072339
    Abstract: Hybrid positioning methods and electronic apparatuses are provided. A representative method includes: obtaining initial location information; computing initial moving information based upon the sensor readings; computing estimated location information based on the initial moving information and the initial location information; acquiring geographical location readings if a location update condition is satisfied; generating reference location information based on the geographical location readings acquired; comparing the estimated location information with the reference location information to obtain a deviation information; computing a calibrated moving information based on the estimated location information and the deviation information; and computing a calibrated location information based on the deviation information, calibrated moving information and the estimated location information.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 11, 2021
    Inventors: Yu-Kuen TSAI, Ching-Lin HSIEH, Chien-Chih HSU
  • Patent number: 10845452
    Abstract: Hybrid positioning methods and electronic apparatuses are provided. A representative method includes: obtaining initial location information; computing initial moving information based upon the sensor readings; computing estimated location information based on the initial moving information and the initial location information; acquiring geographical location readings if a location update condition is satisfied; generating reference location information based on the geographical location readings acquired; comparing the estimated location information with the reference location information to obtain a deviation information; computing a calibrated moving information based on the estimated location information and the deviation information; and computing a calibrated location information based on the deviation information, calibrated moving information and the estimated location information.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: November 24, 2020
    Assignee: CM HK LIMITED
    Inventors: Yu-Kuen Tsai, Ching-Lin Hsieh, Chien-Chih Hsu
  • Publication number: 20170276797
    Abstract: Electronic devices and methods for providing location information are provided, of which a representative method includes: generating sensor readings corresponding to sensed motion of the electronic device; determining a reference location information; computing a GPS-fused location information based on the reference location information and the sensor readings; generating a GPS-required event based on a change of the GPS-fused location information; generating a GPS-not-required event responsive to the reference location information being determined; receiving the GPS-fused location information and one of either the GPS-required event or the GPS-not-required event; responsive to the GPS-required event being received, operating the GPS receiver in a location information-acquiring mode during which the GPS receiver generates geographical location readings; and responsive to the GPS-not-required event being received, operating the GPS receiver in a power-saving mode during which the GPS receiver is deactivated.
    Type: Application
    Filed: June 12, 2017
    Publication date: September 28, 2017
    Inventors: Yun-Chia Hsieh, Kuo-Ting Hu, Yu-Kuen Tsai, Ching-Lin Hsieh, Chien-Chih Hsu
  • Publication number: 20170153313
    Abstract: Hybrid positioning methods and electronic apparatuses are provided. A representative method includes: obtaining initial location information; computing initial moving information based upon the sensor readings; computing estimated location information based on the initial moving information and the initial location information; acquiring geographical location readings if a location update condition is satisfied; generating reference location information based on the geographical location readings acquired; comparing the estimated location information with the reference location information to obtain a deviation information; computing a calibrated moving information based on the estimated location information and the deviation information; and computing a calibrated location information based on the deviation information, calibrated moving information and the estimated location information.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Inventors: Yu-Kuen Tsai, Ching-Lin Hsieh, Chien-Chih Hsu
  • Patent number: 8588471
    Abstract: A mapping method is provided. The environment is scanned to obtain depth information of environmental obstacles. The image of the environment is captured to generate an image plane. The depth information of environmental obstacles is projected onto the image plane, so as to obtain projection positions. At least one feature vector is calculated from a predetermined range around each projection position. The environmental obstacle depth information and the environmental feature vector are merged to generate a sub-map at a certain time point. Sub-maps at all time points are combined to generate a map. In addition, a localization method using the map is also provided.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: November 19, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Hsiang-Wen Hsieh, Hung-Hsiu Yu, Yu-Kuen Tsai, Wei-Han Wang, Chin-Chia Wu
  • Patent number: 8555171
    Abstract: A portable virtual input control device and a method thereof are provided, which can achieve a purpose of human-machine interaction and remote control. The portable virtual input control device comprises a main body, an operation interface display unit connected to the main body, an image capturing module adjacent to the main body, and a central processing module, built in the main body. The operation interface display unit is movably disposed in front of a head of the user for displaying an operation interface corresponding to a controlled device. The image capturing module captures a position image of a hand of the user outside the operation interface display unit.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 8, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Yi Kuo, Chun-Liang Chien, Cheng-Hua Wu, Chun-Wei Chen, Yu-Kuen Tsai
  • Publication number: 20120136604
    Abstract: A method and an apparatus for estimating 3D attitude are disclosed. The method comprises following steps. A set of current angular velocity, a set of current magnetic flux and a set of acceleration of a carrier are sensed. A set of estimated attitude angles are estimated according to the set of current angular velocities, a set of history attitude angles and a motion model. A disturbance parameter is calculated according the set of current magnetic flux and a set of history magnetic flux. It is determined whether the disturbance parameter is more than a disturbance threshold or not. If yes, the set of estimated attitude angles are updated according to the set of current accelerations not the set of current magnetic flux. If not, the set of estimated attitude angles are updated according to the set of current accelerations and the set of current magnetic flux.
    Type: Application
    Filed: July 26, 2011
    Publication date: May 31, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Wen Hsieh, Yu-Kuen Tsai, Chia-Lin Kuo, Hung-Hsiu Yu
  • Publication number: 20110138285
    Abstract: A portable virtual input control device and a method thereof are provided, which can achieve a purpose of human-machine interaction and remote control. The portable virtual input control device comprises a main body, an operation interface display unit connected to the main body, an image capturing module adjacent to the main body, and a central processing module, built in the main body. The operation interface display unit is movably disposed in front of a head of the user for displaying an operation interface corresponding to a controlled device. The image capturing module captures a position image of a hand of the user outside the operation interface display unit.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Yi Kuo, Chun-Liang Chien, Cheng-Hua Wu, Chun-Wei Chen, Yu-Kuen Tsai
  • Publication number: 20110123135
    Abstract: A mapping method is provided. The environment is scanned to obtain depth information of environmental obstacles. The image of the environment is captured to generate an image plane. The depth information of environmental obstacles is projected onto the image plane, so as to obtain projection positions. At least one feature vector is calculated from a predetermined range around each projection position. The environmental obstacle depth information and the environmental feature vector are merged to generate a sub-map at a certain time point. Sub-maps at all time points are combined to generate a map. In addition, a localization method using the map is also provided.
    Type: Application
    Filed: February 4, 2010
    Publication date: May 26, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Wen Hsieh, Hung-Hsiu Yu, Yu-Kuen Tsai, Wei-Han Wang, Chin-Chia Wu