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).

  • Patent number: 11969264
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: April 30, 2024
    Assignee: Amengine Corporation
    Inventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
  • Publication number: 20230045202
    Abstract: 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: Application
    Filed: August 1, 2022
    Publication date: February 9, 2023
    Applicant: National Yang Ming Chiao Tung University
    Inventors: Paul C.-P. CHAO, Yung-Hua KAO, Yan-Wei CHEN
  • Publication number: 20210386303
    Abstract: 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: Application
    Filed: June 9, 2021
    Publication date: December 16, 2021
    Applicant: National Yang Ming Chiao Tung University
    Inventors: Paul C.P. CHAO, Chia-Hsiu YEH
  • Patent number: 11105765
    Abstract: 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: Grant
    Filed: October 20, 2017
    Date of Patent: August 31, 2021
    Assignee: NEAT BIOTECH, INC.
    Inventors: Chiun-Jye Yuan, Chun-Lung Lien, Paul C.-P. Chao
  • Publication number: 20210244296
    Abstract: 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: Application
    Filed: April 28, 2021
    Publication date: August 12, 2021
    Inventors: Sheng-Chieh HUANG, Paul C.P. CHAO, Yung Hua KAO, Pei-Yu CHIANG
  • Publication number: 20210030368
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Inventors: Paul C.P. CHAO, Tse-Yi TU, Bo-Wei PAN, Yan-Hwa WU
  • Patent number: 10806403
    Abstract: 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: Grant
    Filed: July 13, 2017
    Date of Patent: October 20, 2020
    Assignee: National Chiao Tung University
    Inventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
  • Publication number: 20190004002
    Abstract: 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: Application
    Filed: October 20, 2017
    Publication date: January 3, 2019
    Inventors: Chiun-Jye YUAN, Chun-Lung LIEN, Paul C.-P. CHAO
  • Publication number: 20180317854
    Abstract: 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: Application
    Filed: July 13, 2017
    Publication date: November 8, 2018
    Inventors: Paul C. P. Chao, Tse-Yi Tu, Bo-Wei Pan, Yan-Hwa Wu
  • Patent number: 10076251
    Abstract: 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: Grant
    Filed: December 4, 2013
    Date of Patent: September 18, 2018
    Assignee: Maisense Inc.
    Inventors: Tse-Yi Tu, Paul C. P. Chao, Yung-Pin Lee
  • Publication number: 20170071485
    Abstract: 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: Application
    Filed: July 7, 2016
    Publication date: March 16, 2017
    Inventors: Sheng-Chieh Huang, Paul C.-P. Chao, Yung Hua Kao, Tse-Yi Tu, Pei-Yu Chiang
  • Patent number: 8994274
    Abstract: 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: Grant
    Filed: January 31, 2012
    Date of Patent: March 31, 2015
    Assignee: National Chiao Tung University
    Inventors: Kuei-Yu Lee, Paul C. P. Chao
  • Publication number: 20140296734
    Abstract: 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: Application
    Filed: December 4, 2013
    Publication date: October 2, 2014
    Applicant: MedSense Inc.
    Inventors: Tse-Yi TU, Paul C.P. CHAO, Yung-Pin LEE
  • Patent number: 8543179
    Abstract: 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: Grant
    Filed: June 8, 2009
    Date of Patent: September 24, 2013
    Assignee: National Chiao Tung University
    Inventors: Yu-Han Chen, Lun-De Liao, Paul C.-P. Chao, Chin-Teng Lin
  • Patent number: 8513585
    Abstract: 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: Grant
    Filed: July 19, 2010
    Date of Patent: August 20, 2013
    Assignee: National Chiao Tung University
    Inventors: Paul C. P. Chao, Tzu-Yang Lin, Wei-Dar Chen
  • Patent number: 8466737
    Abstract: 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: Grant
    Filed: February 10, 2012
    Date of Patent: June 18, 2013
    Assignee: National Chiao Tung University
    Inventors: Chi Yi Shao, Paul C.-P. Chao
  • Publication number: 20120306374
    Abstract: 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: Application
    Filed: January 31, 2012
    Publication date: December 6, 2012
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Kuei-Yu LEE, Paul C.P. CHAO
  • Publication number: 20120262224
    Abstract: 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: Application
    Filed: February 10, 2012
    Publication date: October 18, 2012
    Inventors: Chi Yi SHAO, Paul C.-P. Chao
  • Patent number: 8285355
    Abstract: 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: Grant
    Filed: May 12, 2010
    Date of Patent: October 9, 2012
    Assignee: National Chiao Tung University
    Inventors: Yu-Han Chen, Paul C.-P. Chao, Lun-De Liao, Chin-Teng Lin, Jian-Ting Chen
  • Patent number: 8144132
    Abstract: 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: Grant
    Filed: December 29, 2008
    Date of Patent: March 27, 2012
    Assignee: National Chiao Tung University
    Inventors: Jian Ting Chen, Paul C. P. Chao, Jyun-Yao Ruan