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).
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Patent number: 11911663Abstract: 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: GrantFiled: March 23, 2022Date of Patent: February 27, 2024Assignee: CHANG GUNG UNIVERSITYInventors: Ya-Ju Chang, Hsiao-Lung Chan, Jiunn-Woei Liaw, Cheng-Chung Kuo
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Patent number: 11712178Abstract: 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: GrantFiled: April 1, 2021Date of Patent: August 1, 2023Assignee: CHANG GUNG UNIVERSITYInventors: Hsiao-Lung Chan, Jiunn-Woei Liaw, Ya-Ju Chang, Cheng-Chung Kuo
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Publication number: 20230053908Abstract: 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: ApplicationFiled: March 23, 2022Publication date: February 23, 2023Inventors: YA-JU CHANG, HSIAO-LUNG CHAN, JIUNN-WOEI LIAW, CHENG-CHUNG KUO
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Patent number: 11363968Abstract: 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: GrantFiled: December 11, 2017Date of Patent: June 21, 2022Assignee: Chang Gung UniversityInventors: Ya-Ju Chang, Jiunn-Woei Liaw, Hung-Bin Chen
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Patent number: 11172867Abstract: 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: GrantFiled: September 3, 2019Date of Patent: November 16, 2021Assignee: CHANG GUNG UNIVERSITYInventors: Ya-Ju Chang, Jiunn-Woei Liaw
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Publication number: 20210307646Abstract: 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: ApplicationFiled: April 1, 2021Publication date: October 7, 2021Inventors: Hsiao-Lung Chan, Jiunn-Woei Liaw, Ya-Ju Chang, Cheng-Chung Kuo
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Publication number: 20200069234Abstract: 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: ApplicationFiled: September 3, 2019Publication date: March 5, 2020Inventors: Ya-Ju CHANG, JIUNN-WOEI LIAW
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Publication number: 20190336040Abstract: 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: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Inventors: YA-JU CHANG, JIUNN-WOEI LIAW, HSIAO-LUNG CHAN
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Publication number: 20180160941Abstract: 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: ApplicationFiled: December 11, 2017Publication date: June 14, 2018Applicant: Chang Gung UniversityInventors: Ya-Ju Chang, Jiunn-Woei Liaw, Hung-Bin Chen
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Patent number: 7792006Abstract: 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: GrantFiled: May 29, 2007Date of Patent: September 7, 2010Assignee: Industrial Technology Research InstituteInventors: 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
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Publication number: 20080002556Abstract: 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: ApplicationFiled: May 29, 2007Publication date: January 3, 2008Inventors: 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
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Patent number: 7288776Abstract: 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: GrantFiled: June 24, 2004Date of Patent: October 30, 2007Assignee: Industrial Technology Research InstituteInventors: 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
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Patent number: 7169733Abstract: 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: GrantFiled: December 29, 2003Date of Patent: January 30, 2007Assignee: Industrial Technology Research InstituteInventors: Chih-Kuang Wang, Fu-Yin Hsu, Shan-Chang Chueh, Jiunn-Woei Liaw
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Publication number: 20040144416Abstract: 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: ApplicationFiled: December 29, 2003Publication date: July 29, 2004Inventors: Chih-Kuang Wang, Fu-Yin Hsu, Shan-Chang Chueh, Jiunn-Woei Liaw