Patents by Inventor Yao-Tsung Chang

Yao-Tsung Chang 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).

  • Publication number: 20220205844
    Abstract: A detection apparatus configured for PCR testing includes a carrier structure and a temperature detection module. The carrier structure is configured to carry a test tube, and the test tube is configured for containing a reagent and a specimen. The temperature detection module is disposed on the carrier structure and includes a heat transfer medium and a temperature sensor. The heat capacity of the heat transfer medium is approximately equal to a preset value, so as to match heat capacity of the reagent. The temperature sensor is configured to sense a temperature of the heat transfer medium. In addition, a method for detecting a temperature of the detection apparatus is also provided.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 30, 2022
    Applicant: Wistron Corporation
    Inventors: Huan-Chun Wu, Yao-Tsung Chang
  • Patent number: 11367221
    Abstract: An image synthesizing method includes capturing a first image using a reference small aperture size; capturing a second image using a reference large aperture size; obtaining one or more reference color weights according to a corresponding pixel of the first image and adjacent pixels of the corresponding pixel of the first image and a corresponding pixel of the second image; obtaining an associated distance by looking up an association table according to the one or more reference color weights; obtaining one or more associated color weights by looking up the association table according to the associated distance and an expected aperture; and obtaining a color value of a corresponding pixel of a synthesized image, by applying weighting to the corresponding pixel of the first image and the adjacent pixels of the corresponding pixel of the first image with the one or more associated color weights.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 21, 2022
    Assignee: Wistron Corporation
    Inventor: Yao-Tsung Chang
  • Publication number: 20220170857
    Abstract: A detection device, including a light emitting device, a light detection element, at least one reflective optical film element, and a control unit, is provided. The light emitting device is configured to provide an excitation beam. A part of the excitation beam whose main emission wavelength falls within an excitation wavelength range generates a fluorescence beam after irradiating onto the test specimen. The light detection element is configured to receive a part of the fluorescence beam whose main emission wavelength falls within a detection wavelength range. The control unit is coupled to at least one reflective optical film element and controls at least one reflective optical film element to filter out a part of a wavelength range of an incident beam. The incident beam is at least one of the excitation beam and the fluorescence beam. A detection method applicable to the detection device is also provided.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 2, 2022
    Applicant: Wistron Corporation
    Inventor: Yao-Tsung Chang
  • Patent number: 11335123
    Abstract: A live facial recognition method includes projecting a given pattern to a subject under recognition; capturing a reflected pattern of the subject under recognition; and detecting whether the subject under recognition is a flat surface according to the reflected pattern. The subject under recognition is determined to be a living subject when the subject under recognition is not a flat surface.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 17, 2022
    Assignee: Wistron Corporation
    Inventors: Chuan-Yen Kao, Yao-Tsung Chang, Chih-Yang Hung
  • Patent number: 11315360
    Abstract: A live facial recognition method includes capturing a zoom-out image of a face of a subject under recognition; and detecting a frame outside the face of the subject under recognition on the zoom-out image. The subject under recognition is determined to be a living subject when the zoom-out image includes no frame outside the face.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: April 26, 2022
    Assignee: Wistron Corporation
    Inventors: Yao-Tsung Chang, Chuan-Yen Kao, Chih-Yang Hung
  • Publication number: 20220080264
    Abstract: A training device includes a force receiving component, a location detector, a resistance generator, and a controller. The force receiving component moves along a closed trajectory. The location detector is configured to detect a location of the force receiving component in the closed trajectory and to output a location signal. The resistance generator is configured to exert a resistance on the force receiving component. The controller controls the resistance generator to adjust the resistance based on the location signal.
    Type: Application
    Filed: November 6, 2020
    Publication date: March 17, 2022
    Inventors: Chuan-Yen Kao, Yao-Tsung Chang, Chih-Yang Hung
  • Patent number: 11259436
    Abstract: A system includes a chassis assembly, a snap holder secured to the chassis assembly, and a second snap holder secured to the chassis assembly. A first tab clip may be snap-fitted onto the first snap holder to secure the first tab clip to the first snap holder, and a second tab clip may be snap-fitted onto the first snap holder to secure the second tab clip to the second snap holder. Each tab clip includes a soft component portion within the tab clip. A battery may be affixed to the first and second tab clips after the tab clips are secured to the snap holders.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 22, 2022
    Assignee: Dell Products L.P.
    Inventors: Yao-Tsung Chang, Chia-Min Sun
  • Publication number: 20210378123
    Abstract: A system includes a chassis assembly, a snap holder secured to the chassis assembly, and a second snap holder secured to the chassis assembly. A first tab clip may be snap-fitted onto the first snap holder to secure the first tab clip to the first snap holder, and a second tab clip may be snap-fitted onto the first snap holder to secure the second tab clip to the second snap holder. Each tab clip includes a soft component portion within the tab clip. A battery may be affixed to the first and second tab clips after the tab clips are secured to the snap holders.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Yao-Tsung Chang, Chia-Min Sun
  • Patent number: 11183805
    Abstract: A cable-arrangement structure includes two device bodies and a cable. The two device bodies are rotatably connected relative to a rotation axis. The cable has two fixed segments and a connecting segment connecting the two fixed segments. The two fixed segments are fixedly disposed on the two device bodies respectively. The connecting segment is movably disposed surrounding the rotation axis. An electrical apparatus includes the above cable-arrangement; therein, the cable electrically connects the two device bodies. When the two device bodies rotate relatively, by the movability characteristic of the connecting segment, the cable can be free of being tensed or twisted and will not hook other components, and the electrical connection of the two device bodies can be maintained.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 23, 2021
    Assignee: Wistron Corporation
    Inventors: Yi-Fan Hsieh, Chen-An Sung, Chih-Chen Chang, Yao-Tsung Chang
  • Publication number: 20210349029
    Abstract: A detection device, including a light-emitting component, a light-detecting component, at least one reflective optical film element, and a control unit, is provided. The light-emitting component is used for providing an excitation beam, wherein a part of the excitation beam whose dominant wavelength falls within an excitation wavelength band generates a fluorescence beam after passing through a test specimen. The light-detecting component is used for receiving a part of the fluorescence beam whose dominant wavelength falls within a detection wavelength band. The control unit is coupled to the at least one reflective optical film element. The control unit controls the at least one reflective optical film element to filter out a part of a wavelength band of an incident beam. The incident beam is at least one of the excitation beam and the fluorescence beam. A detection method of the detection device is also provided.
    Type: Application
    Filed: September 22, 2020
    Publication date: November 11, 2021
    Applicant: Wistron Corporation
    Inventors: Yi Fan Hsieh, Yu-Lin Chen, Yao-Tsung Chang
  • Publication number: 20210320161
    Abstract: The present invention provides a double-sided e-paper display panel including a first substrate, a second substrate, a light isolation layer, a first display medium layer, a second display medium layer, a first electrode layer, and a second electrode layer. The second substrate and the first substrate are disposed opposite to each other. The light isolation layer is disposed between the first substrate and the second substrate. The first display medium layer is disposed between the first substrate and the light isolation layer. The second display medium layer is disposed between the light isolation layer and the second substrate. The first display medium layer and the second display medium layer include a fluid and a plurality of charged particles. The first electrode layer is disposed between the first substrate and the first display medium layer. The second electrode layer is disposed between the second display medium layer and the second substrate.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 14, 2021
    Inventor: Yao-Tsung Chang
  • Patent number: 11126829
    Abstract: A live facial recognition method includes capturing a plurality of images of a face of a subject under recognition; obtaining time-varying data according to the images, the time-varying data representing a periodic variation of facial color of the subject under recognition due to facial vasoconstriction and vasodilation caused by heartbeat; and comparing the time-varying data with a predetermined frequency range. The subject under recognition is determined to be a living subject when the time-varying data is within the predetermined frequency range.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: September 21, 2021
    Assignee: Wistron Corporation
    Inventors: Chih-Yang Hung, Yao-Tsung Chang, Chuan-Yen Kao
  • Publication number: 20210170572
    Abstract: An embodiment of the present invention provides a control device, applied to an exoskeleton system, which includes a sensing unit for measuring topographic data; and a processing unit coupled to the sensing unit for determining a frontal terrain in a moving direction of the exoskeleton system according to a measurement of the sensing unit, for adjusting operations of a driving device of the exoskeleton system. The sensing unit measures a distance and a direction of at least a measuring point corresponding to the sensing unit to measure the topographic data, wherein the measuring point is located in front of the exoskeleton system along the moving direction.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 10, 2021
    Inventors: Hong-Siou Chen, Yao-Tsung Chang, Chuan-Yen Kao, Tsung-Yin Tsou
  • Publication number: 20210174067
    Abstract: A live facial recognition method includes capturing a zoom-out image of a face of a subject under recognition; and detecting a frame outside the face of the subject under recognition on the zoom-out image. The subject under recognition is determined to be a living subject when the zoom-out image includes no frame outside the face.
    Type: Application
    Filed: January 30, 2020
    Publication date: June 10, 2021
    Inventors: Yao-Tsung Chang, Chuan-Yen Kao, Chih-Yang Hung
  • Publication number: 20210170395
    Abstract: A molecular diagnostics apparatus is provided. The molecular diagnostics apparatus is adapted to perform DNA chain replication to one sample. The molecular diagnostics apparatus includes a bracket, a central control module, a motor, a magnetic unit, a rotational carrier, a detection module and at least one power supply coil. The central control module is disposed on the bracket. The motor is disposed on the bracket, wherein the central control module drives the motor. The magnetic unit is disposed on the bracket, wherein the magnetic unit provides a magnetic field. The motor is adapted to rotate the rotational carrier. The rotational carrier is rotated relative to the bracket. The sample is disposed on the rotational carrier. The detection module is disposed on the rotational carrier. The power supply coil is coupled to the detection module, and disposed on the rotational carrier. The molecular diagnostics apparatus of the embodiment has a simpler structure and better reliability.
    Type: Application
    Filed: June 3, 2020
    Publication date: June 10, 2021
    Inventors: Yao-Tsung CHANG, Wen-Hui SHIH, Chen An SUNG
  • Publication number: 20210174068
    Abstract: A live facial recognition method includes projecting a given pattern to a subject under recognition; capturing a reflected pattern of the subject under recognition; and detecting whether the subject under recognition is a flat surface according to the reflected pattern. The subject under recognition is determined to be a living subject when the subject under recognition is not a flat surface.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 10, 2021
    Inventors: Chuan-Yen Kao, Yao-Tsung Chang, Chih-Yang Hung
  • Patent number: 11023718
    Abstract: A living body detection method and a living body detection system are provided. A radio-frequency signal reflected by an experiment living body is received, and raw sampling data of the RF signal are obtained. A feature extraction process is performed to generate initial training features of sampling datasets, wherein the initial training features respectively correspond to feature generation rules. A classification prediction model is established according to a posture of the experiment living body and the initial training features, and correlation feature weightings respectively corresponding to the initial training features are obtained. Preferred features corresponding to at least one of the feature generation rules are selected from the initial training features according to the correlation feature weightings.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 1, 2021
    Assignee: Wistron Corporation
    Inventors: Zhao-Yuan Lin, Yao-Tsung Chang, Zhe-Yu Lin
  • Publication number: 20210154675
    Abstract: A molecular diagnostics apparatus which is adapted to perform DNA chain replication to one sample is provided, including a bracket, a central control module, a central control module coil, a rotational carrier, a detection module and a detection module coil. The central control module is disposed on the bracket. The central control module coil is coupled to the central control module. The rotational carrier is adapted to be rotated relative to the bracket, wherein the sample is disposed on the rotational carrier. The detection module is disposed on the rotational carrier. The detection module coil is coupled to the detection module. In a charging mode, the central control module makes the central control module coil provide an induced electromotive force. The detection module coil generates an induced current according to the induced electromotive force. The induced current is supplied to the detection module.
    Type: Application
    Filed: June 3, 2020
    Publication date: May 27, 2021
    Inventors: Yao-Tsung CHANG, Wen-Hui SHIH, Chen An SUNG
  • Publication number: 20210150189
    Abstract: A live facial recognition method includes capturing a plurality of images of a face of a subject under recognition; obtaining time-varying data according to the images, the time-varying data representing a periodic variation of facial color of the subject under recognition due to facial vasoconstriction and vasodilation caused by heartbeat; and comparing the time-varying data with a predetermined frequency range. The subject under recognition is determined to be a living subject when the time-varying data is within the predetermined frequency range.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 20, 2021
    Inventors: Chih-Yang Hung, Yao-Tsung Chang, Chuan-Yen Kao
  • Publication number: 20210142518
    Abstract: An image synthesizing method includes capturing a first image using a reference small aperture size; capturing a second image using a reference large aperture size; obtaining one or more reference color weights according to a corresponding pixel of the first image and adjacent pixels of the corresponding pixel of the first image and a corresponding pixel of the second image; obtaining an associated distance by looking up an association table according to the one or more reference color weights; obtaining one or more associated color weights by looking up the association table according to the associated distance and an expected aperture; and obtaining a color value of a corresponding pixel of a synthesized image, by applying weighting to the corresponding pixel of the first image and the adjacent pixels of the corresponding pixel of the first image with the one or more associated color weights.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Inventor: Yao-Tsung Chang