Patents by Inventor Jiunn-Woei Liaw

Jiunn-Woei Liaw 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: 11911663
    Abstract: A training device and a training method for reducing hypertonic are disclosed. The training device includes a base, a driving circuit, two pedals, a control circuit, and a switch circuit. The driving circuit is fixed on the base. Each of the two pedals is coupled to the base. The driving circuit drives each of the two pedals to swing repeatedly between a first position and a second position relative to the base. When the control circuit executes a training program, the control circuit actuates the driving circuit.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: February 27, 2024
    Assignee: CHANG GUNG UNIVERSITY
    Inventors: Ya-Ju Chang, Hsiao-Lung Chan, Jiunn-Woei Liaw, Cheng-Chung Kuo
  • Patent number: 11712178
    Abstract: A plantar pressure sensing system is located at a sole of shoe. The plantar pressure sensing system includes a first layer, a second layer a plurality of sensor, a plurality of convex portions, a plurality of connection portions, a processor and a storage. The processor is coupled with the storage and configured to be connected with the plurality of sensors. The plurality of sensors are configured to form the first layer. The plurality of convex portions and the plurality of connection portions are configured to form the second layer. Overall, the plantar pressure sensing system is able to detect pressure with the sensors by setting the alignment of the convex portions, thereby obtaining a more accurate pressure(s) reading from the sole of shoe. The data validity of the plantar pressure sensing system is improved.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 1, 2023
    Assignee: CHANG GUNG UNIVERSITY
    Inventors: Hsiao-Lung Chan, Jiunn-Woei Liaw, Ya-Ju Chang, Cheng-Chung Kuo
  • Publication number: 20230053908
    Abstract: A training device and a training method for reducing hypertonic are disclosed. The training device includes a base, a driving circuit, two pedals, a control circuit, and a switch circuit. The driving circuit is fixed on the base. Each of the two pedals is coupled to the base. The driving circuit drives each of the two pedals to swing repeatedly between a first position and a second position relative to the base. When the control circuit executes a training program, the control circuit actuates the driving circuit.
    Type: Application
    Filed: March 23, 2022
    Publication date: February 23, 2023
    Inventors: YA-JU CHANG, HSIAO-LUNG CHAN, JIUNN-WOEI LIAW, CHENG-CHUNG KUO
  • Patent number: 11363968
    Abstract: A center of pressure (CoP) based control system includes a sensing device and an electronic device connected to the sensing device. The sensing device includes sensors each of which continuously measures force exerted thereon by a subject and generates a sense signal based on a result of the measurement. The electronic device is connected to the sensing device, and receives the sense signals from the respective sensors, generates CoP data associated with a CoP trajectory based on the sense signals, determines whether a turning point exists in the CoP trajectory, generates an indication signal based on a result of the determination, and generates a control signal based on a direction of one of displacements of the CoP.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 21, 2022
    Assignee: Chang Gung University
    Inventors: Ya-Ju Chang, Jiunn-Woei Liaw, Hung-Bin Chen
  • Patent number: 11172867
    Abstract: A device for recording physiological information includes a carrier board comprising a plurality of force transducers and a plurality of contact sensing elements; and a processing unit, coupled to the force transducers and the contact sensing elements, configured to determine a center of gravity (COG) according to outputs of the force transducers, configured to determine a contacted range according to outputs of the plurality of contact sensing elements, configured to record the center of gravity and the contacted range, wherein the gravity and the contacted range substantially correspond to the same time point.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: November 16, 2021
    Assignee: CHANG GUNG UNIVERSITY
    Inventors: Ya-Ju Chang, Jiunn-Woei Liaw
  • Publication number: 20210307646
    Abstract: A plantar pressure sensing system is located at a sole of shoe. The plantar pressure sensing system comprises at least a first layer and at least a second layer. Furthermore, the plantar pressure sensing system includes: a plurality of sensor, a plurality of convex portions, a plurality of connection portions, at least a processor and at least a storage. The processor is coupled with the storage and configured to be connected with the plurality of sensors. The plurality of sensors are configured to form the first layer. The plurality of convex portions and the plurality of connection portions are configured to form the second layer. Overall, the plantar pressure sensing system is able to detect pressure with the sensors by setting the alignment of the convex portions, thereby obtaining a more accurate pressure(s) reading from the sole of shoe. The data validity of the plantar pressure sensing system is improved.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 7, 2021
    Inventors: Hsiao-Lung Chan, Jiunn-Woei Liaw, Ya-Ju Chang, Cheng-Chung Kuo
  • Publication number: 20200069234
    Abstract: A device for recording physiological information includes a carrier board comprising a plurality of force transducers and a plurality of contact sensing elements; and a processing unit, coupled to the force transducers and the contact sensing elements, configured to determine a center of gravity (COG) according to outputs of the force transducers, configured to determine a contacted range according to outputs of the plurality of contact sensing elements, configured to record the center of gravity and the contacted range, wherein the gravity and the contacted range substantially correspond to the same time point.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 5, 2020
    Inventors: Ya-Ju CHANG, JIUNN-WOEI LIAW
  • Publication number: 20190336040
    Abstract: The present disclosure relates a walking assist device, including: a sensor configured to detect a movement of an user and to generate detection signals, a step length module configured to calculate a step length, a controller connected to the sensor and the step length module, and an output module. The controller is configured to determine a step status according to the detection signals, and to generate control signals according to the step status and the step length. The output module is disposed on a shoe body. The output module connects to the controller, and the output module is configured to issue a step cue according to the control signals.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: YA-JU CHANG, JIUNN-WOEI LIAW, HSIAO-LUNG CHAN
  • Publication number: 20180160941
    Abstract: A center of pressure (CoP) based control system includes a sensing device and an electronic device connected to the sensing device. The sensing device includes sensors each of which continuously measures force exerted thereon by a subject and generates a sense signal based on a result of the measurement. The electronic device is connected to the sensing device, and receives the sense signals from the respective sensors, generates CoP data associated with a CoP trajectory based on the sense signals, determines whether a turning point exists in the CoP trajectory, generates an indication signal based on a result of the determination, and generates a control signal based on a direction of one of displacements of the CoP.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 14, 2018
    Applicant: Chang Gung University
    Inventors: Ya-Ju Chang, Jiunn-Woei Liaw, Hung-Bin Chen
  • Patent number: 7792006
    Abstract: The present invention provides an optical head with a single or multiple sub-wavelength light beams, which can be used in arenas such as photolithography, optical storage, optical microscopy, to name a few. The present invention includes a transparent substrate, a thin film, and a surface structure with sub-wavelength surface profile. The incident light transmits through the transparent substrate, forms a surface plasma wave along the sub-wavelength aperture located within the thin film, and finally re-emits through spatial coupling with the sub-wavelength profile of the surface structure. As the coupled re-emitting light beam or light beams can maintain the waist less than that of the diffraction limit for a few micrometers out of the surface with sub-wavelength profile in many cases, this invention can have applications ranging from micro or nano manufacturing, metrology, and manipulation by using light beams with waist smaller than the diffraction limit.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 7, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih King Lee, Liang Bin Yu, Jiunn Woei Liaw, Ding Zheng Lin, Jyi Tyan Yeh, Yu Tsung Chiu, Chun Ti Chen, Chyan Chi Wu, Chau Shioung Yeh, You Chia Chang, Kuo Tung Huang, Yi Chun Chen, Yeong Feng Wang
  • Publication number: 20080002556
    Abstract: The present invention provides an optical head with a single or multiple sub-wavelength light beams, which can be used in arenas such as photolithography, optical storage, optical microscopy, to name a few. The present invention includes a transparent substrate, a thin film, and a surface structure with sub-wavelength surface profile. The incident light transmits through the transparent substrate, forms a surface plasma wave along the sub-wavelength aperture located within the thin film, and finally re-emits through spatial coupling with the sub-wavelength profile of the surface structure. As the coupled re-emitting light beam or light beams can maintain the waist less than that of the diffraction limit for a few micrometers out of the surface with sub-wavelength profile in many cases, this invention can have applications ranging from micro or nano manufacturing, metrology, and manipulation by using light beams with waist smaller than the diffraction limit.
    Type: Application
    Filed: May 29, 2007
    Publication date: January 3, 2008
    Inventors: Chih-Kung Lee, Liang-Bin Yu, Jiunn-Woei Liaw, Ding-Zheng Lin, Jyi-Tyan Yeh, Yu-Tsung Chiu, Chun-Ti Chen, Chyan-Chi Wu, Chau-Shioung Yeh, You-Chia Chang, Kuo-Tung Huang, Yi-Chun Chen, Yeong-Feng Wang
  • Patent number: 7288776
    Abstract: The present invention provides an optical head with a single or multiple sub-wavelength light beams, which can be used in arenas such as photolithography, optical storage, optical microscopy, to name a few. The present invention includes a transparent substrate, a thin film, and a surface structure with sub-wavelength surface profile. The incident light transmits through the transparent substrate, forms a surface plasma wave along the sub-wavelength aperture located within the thin film, and finally re-emits through spatial coupling with the sub-wavelength profile of the surface structure. As the coupled re-emitting light beam or light beams can maintain the waist less than that of the diffraction limit for a few micrometers out of the surface with sub-wavelength profile in many cases, this invention can have applications ranging from micro or nano manufacturing, metrology, and manipulation by using light beams with waist smaller than the diffraction limit.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: October 30, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Chih Kung Lee, Liang Bin Yu, Jiunn Woei Liaw, Ding Zheng Lin, Jyi Tyan Yeh, Yu Tsung Chiu, Chun Ti Chen, Chyan Chi Wu, Chau Shioung Yeh, You Chia Chang, Kuo Tung Huang, Yi Chun Chen, Yeong Feng Wang
  • Patent number: 7169733
    Abstract: A visible light induced, highly oxidative, and highly reductive photocatalyst. The photocatalyst includes a first semiconductor with a bandgap between valence band and conduction band thereof between 2.0 eV and 3.0 eV, and second semiconductor, combined with the first semiconductor, with a bandgap between valence band and conduction band thereof between 2.0 eV and 3.0 eV. The conduction band of the first semiconductor is negative relative to that of H2/H2O with a difference of 0.2 eV or greater. The valence band of the second semiconductor is positive relative to that of H2/H2O with a difference of 2.8 eV or greater.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: January 30, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Kuang Wang, Fu-Yin Hsu, Shan-Chang Chueh, Jiunn-Woei Liaw
  • Publication number: 20040144416
    Abstract: A visible light induced, highly oxidative, and highly reductive photocatalyst. The photocatalyst includes a first semiconductor with a bandgap between valence band and conduction band thereof between 2.0 eV and 3.0 eV, and second semiconductor, combined with the first semiconductor, with a bandgap between valence band and conduction band thereof between 2.0 eV and 3.0 eV. The conduction band of the first semiconductor is negative relative to that of H2/H2O with a difference of 0.2 eV or greater. The valence band of the second semiconductor is positive relative to that of H2/H2O with a difference of 2.8 eV or greater.
    Type: Application
    Filed: December 29, 2003
    Publication date: July 29, 2004
    Inventors: Chih-Kuang Wang, Fu-Yin Hsu, Shan-Chang Chueh, Jiunn-Woei Liaw