Patents by Inventor Paul C.-P. Chao
Paul C.-P. Chao 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: 11969264Abstract: An adaptive controller used in a photoplethysmography sensing system, comprises a plurality of hardware circuits which are configured to: receive a photoplethysmography signal (hereinafter, “PPG signal”) processed; determine whether the PPG signal processed satisfies with a requirement; output the PPG signal processed if the PPG signal processed satisfies with a requirement; and adjust a gain of an amplifier for amplifying the PPG signal and/or a driving signal of a light source if the PPG signal processed does not satisfy with a requirement.Type: GrantFiled: October 16, 2020Date of Patent: April 30, 2024Assignee: Amengine CorporationInventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
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Publication number: 20230045202Abstract: The present invention is related to a biological data sensor for measuring biological data from a user. The biological data sensor comprises a sensing module and a wearable charging module. The sensing module is formed by flexible printed circuit (FPC) and attached to the user's skin. The sensing module includes light emitting units, at least one sensing unit, and a rechargeable battery. The light emitting unit emits a first sensing light onto the user's skin. The first sensing light is transmitted onto the user's skin and reflected from the user's skin as a second detecting light. The sensing unit receives the second sensing light and outputs the biological data. The rechargeable battery is electrically connected to the light emitting units and the sensing unit, and the rechargeable battery provides power to the light emitting units and the sensing unit. The wearable charging module is worn on a part of the user adjacent to the sensing module.Type: ApplicationFiled: August 1, 2022Publication date: February 9, 2023Applicant: National Yang Ming Chiao Tung UniversityInventors: Paul C.-P. CHAO, Yung-Hua KAO, Yan-Wei CHEN
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Publication number: 20210386303Abstract: A radial artery signal measuring device includes a flexible signal sensor, a signal processor, and a flexible cable. The flexible signal sensor is fixed on a skin surface over a radial artery by a patch during use. The flexible signal sensor includes a flexible substrate, at least one infrared light source, and a light detector. The at least one infrared light source is used to emit an infrared light to the radial artery, wherein the wavelength of the light source is infrared light greater than 1000 nm. The light detector is used to receive the infrared light reflected by the radial artery and generate a radial artery signal. The signal processor includes a housing for fitting the wrist of a user, a circuit board, a microprocessor, and a battery. The flexible cable is used to transmit the radial artery signal to the microprocessor.Type: ApplicationFiled: June 9, 2021Publication date: December 16, 2021Applicant: National Yang Ming Chiao Tung UniversityInventors: Paul C.P. CHAO, Chia-Hsiu YEH
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Patent number: 11105765Abstract: A biosensor device includes a substrate plate, a metal conductive layer, a plurality of working electrodes and an insulating layer. The metal conductive layer is disposed over the substrate plate and has an upper surface. The working electrodes are disposed over the upper surface of the metal conductive layer, wherein each of the working electrodes has a top surface and each of the top surfaces is higher than the upper surface of the metal conductive layer. The insulating layer covers the metal conductive layer and surrounds the working electrodes, wherein an upper surface of the insulating layer is located between the top surfaces and the upper surface of the metal conductive layer such that the working electrodes protrude beyond the upper surface of the insulating layer. A method for manufacturing the biosensor device and a method for detecting biological molecules by using the biosensor device are also provided herein.Type: GrantFiled: October 20, 2017Date of Patent: August 31, 2021Assignee: NEAT BIOTECH, INC.Inventors: Chiun-Jye Yuan, Chun-Lung Lien, Paul C.-P. Chao
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Publication number: 20210244296Abstract: The present invention provides a system and method for blood pressure measurement, a computer program product using the method, and a computer-readable recording medium thereof. The present invention uses a sensor to measure an electrophysiological signal and establishes a personalized cardiovascular model through a numerical method, and re-establishes the personalized cardiovascular model through an optimization algorithm. Thus, a human physiological parameter generated from the re-established personal cardiovascular model matches the electrophysiological signal. Therefore, the present invention can provide accurate measurement results with the advantage of a small size, and can be applied to telemedicine field.Type: ApplicationFiled: April 28, 2021Publication date: August 12, 2021Inventors: Sheng-Chieh HUANG, Paul C.P. CHAO, Yung Hua KAO, Pei-Yu CHIANG
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Publication number: 20210030368Abstract: An adaptive controller used in a photoplethysmography sensing system, comprises a plurality of hardware circuits which are configured to: receive a photoplethysmography signal (hereinafter, “PPG signal”) processed; determine whether the PPG signal processed satisfies with a requirement; output the PPG signal processed if the PPG signal processed satisfies with a requirement; and adjust a gain of an amplifier for amplifying the PPG signal and/or a driving signal of a light source if the PPG signal processed does not satisfy with a requirement.Type: ApplicationFiled: October 16, 2020Publication date: February 4, 2021Inventors: Paul C.P. CHAO, Tse-Yi TU, Bo-Wei PAN, Yan-Hwa WU
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Patent number: 10806403Abstract: An adaptive controller used in a photoplethysmography sensing system, comprises a plurality of hardware circuits which are configured to: receive a photoplethysmography signal (hereinafter, “PPG signal”) processed; determine whether the PPG signal processed satisfies with a requirement; output the PPG signal processed if the PPG signal processed satisfies with a requirement; and adjust a gain of an amplifier for amplifying the PPG signal and/or a driving signal of a light source if the PPG signal processed does not satisfy with a requirement.Type: GrantFiled: July 13, 2017Date of Patent: October 20, 2020Assignee: National Chiao Tung UniversityInventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
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Publication number: 20190004002Abstract: A biosensor device includes a substrate plate, a metal conductive layer, a plurality of working electrodes and an insulating layer. The metal conductive layer is disposed over the substrate plate and has an upper surface. The working electrodes are disposed over the upper surface of the metal conductive layer, wherein each of the working electrodes has a top surface and each of the top surfaces is higher than the upper surface of the metal conductive layer. The insulating layer covers the metal conductive layer and surrounds the working electrodes, wherein an upper surface of the insulating layer is located between the top surfaces and the upper surface of the metal conductive layer such that the working electrodes protrude beyond the upper surface of the insulating layer. A method for manufacturing the biosensor device and a method for detecting biological molecules by using the biosensor device are also provided herein.Type: ApplicationFiled: October 20, 2017Publication date: January 3, 2019Inventors: Chiun-Jye YUAN, Chun-Lung LIEN, Paul C.-P. CHAO
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Publication number: 20180317854Abstract: An adaptive controller used in a photoplethysmography sensing system, comprises a plurality of hardware circuits which are configured to: receive a photoplethysmography signal (hereinafter, “PPG signal”) processed; determine whether the PPG signal processed satisfies with a requirement; output the PPG signal processed if the PPG signal processed satisfies with a requirement; and adjust a gain of an amplifier for amplifying the PPG signal and/or a driving signal of a light source if the PPG signal processed does not satisfy with a requirement.Type: ApplicationFiled: July 13, 2017Publication date: November 8, 2018Inventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
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Patent number: 10076251Abstract: A physiology signal sensing device includes an elastic pad and a strain sensor element. The elastic pad is used for contact with a human body, and corresponds a blood vessel of the human body. The strain sensor element is disposed in the elastic pad and includes a conductive element. The conductive element deforms according to the vibration of the blood vessel, and the resistance value of the conductive element varies according to the strain of the conductive element.Type: GrantFiled: December 4, 2013Date of Patent: September 18, 2018Assignee: Maisense Inc.Inventors: Tse-Yi Tu, Paul C. P. Chao, Yung-Pin Lee
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Publication number: 20170071485Abstract: The present invention provides a system and method for blood pressure measurement, a computer program product using the method, and a computer-readable recording medium thereof. The present invention uses a sensor to measure an electrophysiological signal and establishes a personalized cardiovascular model through a numerical method, and re-establishes the personalized cardiovascular model through an optimization algorithm. Thus, a human physiological parameter generated from the re-established personal cardiovascular model matches the electrophysiological signal. Therefore, the present invention can provide accurate measurement results with the advantage of a small size, and can be applied to telemedicine field.Type: ApplicationFiled: July 7, 2016Publication date: March 16, 2017Inventors: Sheng-Chieh Huang, Paul C.-P. Chao, Yung Hua Kao, Tse-Yi Tu, Pei-Yu Chiang
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Patent number: 8994274Abstract: A dual-pixel circuit includes first and second OLEDs, and a driving circuit that includes first and second driving transistors, a capacitor, and a switching module operable between first and second modes based on a data voltage, first and second scan voltages, and first and second bias signals. When the switching module is operated in the first mode, the first OLED is forward-biased to emit light, and the second OLED is reverse-biased. When the switching module is operated in the second mode, the first OLED is reverse-biased, and the second OLED is forward-biased to emit light.Type: GrantFiled: January 31, 2012Date of Patent: March 31, 2015Assignee: National Chiao Tung UniversityInventors: Kuei-Yu Lee, Paul C. P. Chao
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Publication number: 20140296734Abstract: A physiology signal sensing device includes an elastic pad and a strain sensor clement. The elastic pad is used for contact with a human body, and corresponds a blood vessel of the human body. The strain sensor element is disposed in the elastic pad and includes a conductive element. The conductive element deforms according to the vibration of the blood vessel, and the resistance value of the conductive element varies according to the strain of the conductive element.Type: ApplicationFiled: December 4, 2013Publication date: October 2, 2014Applicant: MedSense Inc.Inventors: Tse-Yi TU, Paul C.P. CHAO, Yung-Pin LEE
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Patent number: 8543179Abstract: A biomedical sensor device includes a light source, a probe array, and a photo detector. The light source is configured for emitting infrared radiation. The probe array is contacted to a user's skin to detect an electric wave signal transmitted through the probe array from the skin. The probe array includes a substrate and a plurality of probes mounted on the substrate, wherein the substrate and the probes are non-opaque so that the infrared radiation may be transmitted through the probe array into the skin. The photo detector is configured to detect an infrared signal by measuring the infrared radiation absorption by the skin.Type: GrantFiled: June 8, 2009Date of Patent: September 24, 2013Assignee: National Chiao Tung UniversityInventors: Yu-Han Chen, Lun-De Liao, Paul C.-P. Chao, Chin-Teng Lin
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Patent number: 8513585Abstract: The present invention relates an optical three-dimensional coordinate sensor system and method thereof. A plurality of light-emitting modules produce a plurality of light signals, and then a plurality of reflected light signals reflected by an object are received by a plurality of photodetectors. After receiving the reflected light signals, the photodetectors generate a plurality of photocurrents. A plurality of active pixel circuits receive the photocurrents and transform the photocurrents to a plurality of reflective optical voltages. A plurality of differential amplifier circuits (DAC) compare the reflective optical voltages and the background voltages, and then output a plurality of DAC output voltages of the reflected light signals. Afterward, a processing module detects the DAC output voltages and uses an algorithm to calculate the top three of the DAC output voltages to determine the three-dimensional coordinate of the object.Type: GrantFiled: July 19, 2010Date of Patent: August 20, 2013Assignee: National Chiao Tung UniversityInventors: Paul C. P. Chao, Tzu-Yang Lin, Wei-Dar Chen
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Patent number: 8466737Abstract: A charge pump device is coupled to first and second input terminals receiving an AC signal and comprises an electric switch set and two voltage boost circuits. The electric switch set is coupled to the first and second input terminals and a ground terminal and switches the conduction status thereof according to the AC signal. The two voltage boost circuits are interconnected and coupled to the first and second input terminals and the electric switch set. The boost circuits receive the AC signal according to the conduction status, respectively boost voltage in positive and negative semi-periods of the AC signal, and alternatively output a voltage at least two times the peak voltage of the AC signal, to a load. The present invention not only boosts voltage by several folds within a cycle but also outputs voltage by dual phases to reduce ripple of output voltage.Type: GrantFiled: February 10, 2012Date of Patent: June 18, 2013Assignee: National Chiao Tung UniversityInventors: Chi Yi Shao, Paul C.-P. Chao
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Publication number: 20120306374Abstract: A dual-pixel circuit includes first and second OLEDs, and a driving circuit that includes first and second driving transistors, a capacitor, and a switching module operable between first and second modes based on a data voltage, first and second scan voltages, and first and second bias signals. When the switching module is operated in the first mode, the first OLED is forward-biased to emit light, and the second OLED is reverse-biased. When the switching module is operated in the second mode, the first OLED is reverse-biased, and the second OLED is forward-biased to emit light.Type: ApplicationFiled: January 31, 2012Publication date: December 6, 2012Applicant: NATIONAL CHIAO TUNG UNIVERSITYInventors: Kuei-Yu LEE, Paul C.P. CHAO
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Publication number: 20120262224Abstract: A charge pump device is coupled to first and second input terminals receiving an AC signal and comprises an electric switch set and two voltage boost circuits. The electric switch set is coupled to the first and second input terminals and a ground terminal and switches the conduction status thereof according to the AC signal. The two voltage boost circuits are interconnected and coupled to the first and second input terminals and the electric switch set. The boost circuits receive the AC signal according to the conduction status, respectively boost voltage in positive and negative semi-periods of the AC signal, and alternatively output a voltage at least two times the peak voltage of the AC signal, to a load. The present invention not only boosts voltage by several folds within a cycle but also outputs voltage by dual phases to reduce ripple of output voltage.Type: ApplicationFiled: February 10, 2012Publication date: October 18, 2012Inventors: Chi Yi SHAO, Paul C.-P. Chao
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Patent number: 8285355Abstract: A biomedical electric wave sensor includes a base, a central pole, a dry electrode, a case, and a plurality of ribs. When the central pole lowers down, the ribs radiate and expand outward to push aside the hair of a subject, and the dry electrode exposes from the case and contacts the skin of the subject to measure a physiological electric wave signal from the subject. The present invention may overcome the intervention problem caused by hair and achieve the measurement of biomedical electric wave signal.Type: GrantFiled: May 12, 2010Date of Patent: October 9, 2012Assignee: National Chiao Tung UniversityInventors: Yu-Han Chen, Paul C.-P. Chao, Lun-De Liao, Chin-Teng Lin, Jian-Ting Chen
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Patent number: 8144132Abstract: A multi-point sensing method used in a capacitive touch panel is disclosed to detect the voltage variation of every electrode patterned on two parallel electrode layers by means of a capacitive sensing circuit, and measure the vertical capacitance at the intersection crossed by the electrodes of the two electrode layers where the voltage variation is detected, and then compare the vertical capacitance thus measured with the initial vertical capacitance at the same intersection before touch, as a result, the intersection corresponding to the measured vertical capacitance can be determined as the touch point when the comparison result shows different.Type: GrantFiled: December 29, 2008Date of Patent: March 27, 2012Assignee: National Chiao Tung UniversityInventors: Jian Ting Chen, Paul C. P. Chao, Jyun-Yao Ruan