Patents by Inventor Jia-Yush Yen
Jia-Yush Yen 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: 11541551Abstract: A robotic arm comprising an operation end, a base, a sensor unit and a control unit is provided. The operation end is connected to the base, and the operation end is configured to reach an operational area. The sensor unit provides a sensor signal according to the force applied by or the motion of an operator. When the operation end reaches the operational area, the control unit sets a fixed position on the robotic arm between the base and the operation end. When the sensor signal from the operator fulfills a default condition, the control unit moves the robotic arm away from the operator, without moving the fixed position on the robotic arm.Type: GrantFiled: July 31, 2019Date of Patent: January 3, 2023Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Jia-Yush Yen, You-Ting Liao, Ching-Yuan Chen, Yen-Han Wang, Yung-Yaw Chen, Ming-Chih Ho
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Publication number: 20210315454Abstract: The present invention provides a morphology determining method of corneal topography, including: a parameter obtaining step, based on an original contour line of a cornea of a target subject as the reference, obtaining a relative displacement of each observation point of a contour line of the pressed cornea changed with time from the beginning of pressing the cornea by an external pressure to a predetermined time after the pressing is finished; a conversion step, performing a mathematical function conversion of the above relative displacement with respect to a spatial contour at each observation time point, so as to respectively obtain one or more order vibrational modes representing the contour line of the time points; and a determining step, respectively comparing the one or more order vibrational modes of the cornea of the target subject with a corresponding order vibrational mode of at least one reference cornea, and determining a morphology of the corneal topography of the cornea of the target subject.Type: ApplicationFiled: April 12, 2021Publication date: October 14, 2021Inventors: Po-Jen SHIH, Jia-Yush YEN, I-Jong WANG, Chun-Ju HUANG, Hsin-Ju LAI
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Publication number: 20200039085Abstract: A robotic arm comprising an operation end, a base, a sensor unit and a control unit is provided. The operation end is connected to the base, and the operation end is configured to reach an operational area. The sensor unit provides a sensor signal according to the force applied by or the motion of an operator. When the operation end reaches the operational area, the control unit sets a fixed position on the robotic arm between the base and the operation end. When the sensor signal from the operator fulfills a default condition, the control unit moves the robotic arm away from the operator, without moving the fixed position on the robotic arm.Type: ApplicationFiled: July 31, 2019Publication date: February 6, 2020Inventors: Jia-Yush Yen, You-Ting Liao, Ching-Yuan Chen, Yen-Han Wang, Yung-Yaw Chen, Ming-Chih Ho
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Patent number: 10394928Abstract: A corneal dynamic model algorithm and system using the same is provided, comprising an ophthalmotonometer and a calculating unit. The calculating unit comprises the algorithm for calculating the corneal dynamic model. The algorithm comprises: reading an actual corneal deformation from the ophthalmotonometer; substituting a young's modulus initial value and a damping coefficient initial value into a mathematical equation for getting a calculated corneal deformation; determining whether error amount between the calculated deformation and the actual deformation is a minimum or not; and getting a young's modulus and a damping coefficient.Type: GrantFiled: March 17, 2016Date of Patent: August 27, 2019Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Jia-Yush Yen, Po-Jen Shih, Chun-Ju Huang, Hui-Jun Cao
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Patent number: 10332636Abstract: A corneal young's modulus algorithm and system using the same is provided, comprising a tonometer and a computation unit. The computation unit comprises an algorithm for calculating young's modulus. The algorithm comprises: (S1) read at least one parameter measured by a tonometer; (S2) apply the at least one parameter and an initial value of Young's modulus to a first equation to obtain an inner deformation amount and an outer deformation amount; (S3) apply the inner deformation amount and the outer deformation amount to a second equation to obtain a calculated deformation amount; (S4) determine if an error value between the calculated deformation amount and the actual deformation amount is minimal; and (S5) obtain Young's modulus.Type: GrantFiled: February 17, 2016Date of Patent: June 25, 2019Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Jia-Yush Yen, I-Jong Wang, Po-Jen Shih, Chun-Ju Huang, Tzu-Han Huang
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Patent number: 10194886Abstract: The present invention provides an acoustic wave intraocular pressure detecting device and a method thereof, which uses a driver to generate a vibration wave on the skin or bones. The energy of the vibration wave is transmitted to the orbital bones via the skin and the skeletons. A standing wave of the basin effect is generated on the eyeball inside the orbital bones. The standing wave vibrates the eyeball or the cornea to generate an acoustic wave signal with a resonance frequency. The eyeball or the cornea emits the acoustic wave outwardly. A receiver receives the acoustic wave and converts the acoustic wave into an intraocular pressure (IOP) value.Type: GrantFiled: December 17, 2015Date of Patent: February 5, 2019Assignee: National Taiwan UniversityInventors: Wen-Pin Shih, Po-Jen Shih, Jia-Yush Yen, I-Jong Wang
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Patent number: 9675423Abstract: An ultrasound energy barrier for avoiding energy accumulation in a to-be-protected region during tumor treatment has a barrier element and a positioning element. The barrier element is attached to a body surface of an animal outside a to-be-protected region and a to-be-treated tumor in turn, the barrier element has an outline matched with the to-be-protected region to thus shield the to-be-protected region, so as to avoid energy accumulation in the to-be-protected region during an ultrasound focusing treatment of the to-be-treated tumor. The positioning element positioning the barrier element on the body surface during the ultrasound focusing treatment.Type: GrantFiled: June 11, 2013Date of Patent: June 13, 2017Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Jia-yush Yen, Yu-tin Chao, Ya-lin Yu, Che-jung Hsu, Yung-yaw Chen, Ming-chih Ho
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Publication number: 20160275264Abstract: A corneal dynamic model algorithm and system using the same is provided, comprising an ophthalmotonometer and a calculating unit. The calculating unit comprises the algorithm for calculating the corneal dynamic model. The algorithm comprises: reading an actual corneal deformation from the ophthalmotonometer; substituting a young's modulus initial value and a damping coefficient initial value into a mathematical equation for getting a calculated corneal deformation; determining whether error amount between the calculated deformation and the actual deformation is a minimum or not; and getting a young's modulus and a damping coefficient.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Inventors: Jia-Yush YEN, Po-Jen SHIH, Chun-Ju HUANG, Hui-Jun CAO
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Publication number: 20160239634Abstract: A corneal young's modulus algorithm and system using the same is provided, comprising a tonometer and a computation unit. The computation unit comprises an algorithm for calculating young's modulus. The algorithm comprises: (S1) read at least one parameter measured by a tonometer; (S2) apply the at least one parameter and an initial value of Young's modulus to a first equation to obtain an inner deformation amount and an outer deformation amount; (S3) apply the inner deformation amount and the outer deformation amount to a second equation to obtain a calculated deformation amount; (S4) determine if an error value between the calculated deformation amount and the actual deformation amount is minimal; and (S5) obtain Young's modulus.Type: ApplicationFiled: February 17, 2016Publication date: August 18, 2016Inventors: Jia-Yush Yen, I-Jong WANG, Po-Jen Shih, Chun-Ju Huang, Tzu-Han Huang
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Publication number: 20160174933Abstract: The present invention provides an acoustic wave intraocular pressure detecting device and a method thereof, which uses a driver to generate a vibration wave on the skin or bones. The energy of the vibration wave is transmitted to the orbital bones via the skin and the skeletons. A standing wave of the basin effect is generated on the eyeball inside the orbital bones. The standing wave vibrates the eyeball or the cornea to generate an acoustic wave signal with a resonance frequency. The eyeball or the cornea emits the acoustic wave outwardly. A receiver receives the acoustic wave and converts the acoustic wave into an intraocular pressure (IOP) value.Type: ApplicationFiled: December 17, 2015Publication date: June 23, 2016Inventors: Wen-Pin SHIH, Po-Jen SHIH, Jia-Yush YEN, I-Jong WANG
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Patent number: 9331624Abstract: The present invention proposes a thrust ripple mapping system in a precision stage with the thrust ripple mapping system comprising a moving stage, a load cell, a plurality of motors and a processing component. The load cell is coupled to the moving stage. The motors are employed in moving the load cell and the moving stage. The processing component takes a thrust force measurement at each of a plurality of moving increments of the load cell.Type: GrantFiled: February 25, 2013Date of Patent: May 3, 2016Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Jia-yush Yen, Fu-tsun Kuo, Craig Western
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Patent number: 9165746Abstract: An electron beam drift detection device and a method for detecting electron beam drift are provided in which the method includes placing a predetermined characteristic identification pattern on a surface of a workpiece; emitting an electron beam, and focusing and deflecting the electron beam such that the focused and deflected electron beam scans the surface of the workpiece and the characteristic identification pattern; detecting backscattered electrons and secondary electrons; and receiving detection signals and performing an image process on the detection signals to obtain an electronic image of the characteristic identification pattern, and measuring a drift degree by comparing the electronic image with the predetermined shape of the characteristic identification pattern.Type: GrantFiled: September 23, 2011Date of Patent: October 20, 2015Assignee: National Taiwan UniversityInventors: Jia-Yush Yen, Yung-Yaw Chen, Yi-Hung Kuo, Cheng-Ju Wu
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Publication number: 20150018661Abstract: A method for measuring corneal elastic constant and viscosity constant comprises steps of: ejecting compressed air toward a cornea of a live eye ball and measuring air pressure thereof; emitting infrared rays during an air ejecting period, for measuring corneal deformation caused by the compressed air applied to the cornea; and calculating an elastic constant and a viscosity constant of the cornea based on Kelvin-Voigt model by utilizing the corneal deformation measured via the infrared rays and the measured air pressure during the air ejecting period. One advantage of the present invention is to aid preliminary detection in eye diseases.Type: ApplicationFiled: January 13, 2014Publication date: January 15, 2015Applicant: National Taiwan UniversityInventors: Jia-Yush YEN, I-Jong WANG, Chun-Ju HUANG, Pei-Yi CHOU
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Publication number: 20140364776Abstract: An ultrasound energy barrier for avoiding energy accumulation in a to-be-protected region during tumor treatment has a barrier element and a positioning element. The barrier element is attached to a body surface of an animal outside a to-be-protected region and a to-be-treated tumor in turn, the barrier element has an outline matched with the to-be-protected region to thus shield the to-be-protected region, so as to avoid energy accumulation in the to-be-protected region during an ultrasound focusing treatment of the to-be-treated tumor. The positioning element positioning the barrier element on the body surface during the ultrasound focusing treatment.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventors: Jia-yush Yen, Yu-tin Chao, Ya-lin Yu, Che-jung Hsu, Yung-yaw Chen, Ming-chih Ho
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Publication number: 20140239855Abstract: The present invention proposes a thrust ripple mapping system in a precision stage with the thrust ripple mapping system comprising a moving stage, a load cell, a plurality of motors and a processing component. The load cell is coupled to the moving stage. The motors are employed in moving the load cell and the moving stage. The processing component takes a thrust force measurement at each of a plurality of moving increments of the load cell.Type: ApplicationFiled: February 25, 2013Publication date: August 28, 2014Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Jia-yush YEN, Fu-tsun KUO, Craig WESTERN
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Patent number: 8498696Abstract: A health monitoring device is provided and includes a detecting unit for detecting a first electric signal from a human body and a processing unit for performing the following steps: receiving the first electric signal; performing wavelet transform on the first electric signal, to filter frequency bands thereof which include undesired noises, and then perform a reverse wavelet transform to obtain a second electric signal; combining frequency bands of the first electric signal which include primary characteristics and then perform a reverse wavelet transform on the combined frequency bands to obtain a fourth electric signal; and comparing the fourth electric signal with a plurality of electric signal patterns of a database to determine whether the fourth electric signal is an electric signal for healthiness.Type: GrantFiled: June 8, 2010Date of Patent: July 30, 2013Assignee: National Taiwan UniversityInventors: Jia-Yush Yen, Fan-Che Yen, Chih-Kung Lee, Chii-Wann Lin, Kuang-Chong Wu, Ching-En Tseng
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Patent number: 8436581Abstract: A system for testing electromagnetic characteristics of an electromagnetic steel sheet includes: a driving unit operable based on a non-sinusoidal wave control signal from a control unit and a floating voltage to output a control output; a power output unit operable based on the control output from the driving unit to output a voltage output at an output side coupled across a first winding wound around the electromagnetic steel sheet such that an exciting current flowing through the first winding is generated in response to the voltage output, thereby resulting in an induced voltage across a second winding wound around the electromagnetic steel sheet; and a measuring unit outputting to the control unit an output corresponding to the exciting current and the induced voltage measured thereby such that the control unit obtains the electromagnetic characteristics of the electromagnetic steel sheet based on the output.Type: GrantFiled: April 19, 2010Date of Patent: May 7, 2013Assignee: China Steel CorporationInventors: Kai-Chen Kuo, Jia-Yush Yen, Ping-Kun Lee, Yi-Chih Lai, Cheng-Ju Wu
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Publication number: 20120256084Abstract: An electron beam drift detection device and a method for detecting electron beam drift are provided in which the method includes placing a predetermined characteristic identification pattern on a surface of a workpiece; emitting an electron beam, and focusing and deflecting the electron beam such that the focused and deflected electron beam scans the surface of the workpiece and the characteristic identification pattern; detecting backscattered electrons and secondary electrons; and detection signals; and receives the receiving detection signals and performs performing an image process on the detection signals to obtain an electronic image of the characteristic identification pattern, and measuring a drift degree by comparing the electronic image with the predetermined shape of the characteristic identification pattern.Type: ApplicationFiled: September 23, 2011Publication date: October 11, 2012Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Jia-Yush Yen, Yung-Yaw Chen, Yi-Hung Kuo, Cheng-Ju Wu
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Publication number: 20120112086Abstract: This invention provides a system for estimating change of status of one or a plurality of particle beams, the system comprises a plurality of particle detectors and an estimating unit, wherein one or a plurality of particle beams is being projected to a substrate. The particle detectors detect the one or the plurality particle beams reflected from the substrate to generate one or a plurality of detected signals. The estimating unit estimates change of the status of the one or the plurality of particle beams according to the one or the plurality of detected signals. By such arrangement and estimating method, the system could estimate multiple beams and achieve beam placement accuracy.Type: ApplicationFiled: November 2, 2011Publication date: May 10, 2012Applicant: National Taiwan UniversityInventors: Kuen-Yu TSAI, Sheng-Yung Chen, Jia-Yush Yen, Yung-Yaw Chen, Chi-Hsiang Fan
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Patent number: 7989746Abstract: The invention relates to a rail-type solar tracking system with a focusing function. The invention includes a plurality of support elements, a Fresnel lens, a rail platform, a load bearing platform and a pushing device. The system moves a solar cell on the load bearing platform to a focus position where sunlight is focused by the Fresnel lens to collect solar energy. Hence, the invention collects solar energy without moving heavy lens so as to reduce power consumption and improve the electric power generating efficiency of the solar cell.Type: GrantFiled: September 25, 2008Date of Patent: August 2, 2011Assignee: National Taiwan UniversityInventors: Hsuan-Tsung Chen, Pei-Ying Yeh, Nien-Chen Lin, Jia-Yush Yen