Patents by Inventor Yan-Chen Liu

Yan-Chen Liu 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: 20240097573
    Abstract: A control circuit for an isolated power converter includes a first sensing circuit that senses a secondary side output voltage and produces a pulse wave modulation (PWM) signal having a duty cycle that is proportional to a value of the secondary side output voltage. The PWM is transferred across the converter isolation barrier to the primary side, and a primary side circuit receives the PWM signal and outputs a control signal. A controller determines the value of the secondary side output voltage from the control signal and uses the value to control primary side power switching devices of the isolated power converter to regulate the secondary side output voltage at a selected value.
    Type: Application
    Filed: July 24, 2023
    Publication date: March 21, 2024
    Inventors: Yan-Fei Liu, Yang Chen, Binghui He, Wenbo Liu, Bo Sheng
  • Patent number: 10556353
    Abstract: A robot arm control device includes a pressure sensing module, a workspace defining module and a control module. The pressure sensing module, arranged on a robot arm, detects whether an object hits or touches the robot arm to switch the operating mode of the robot arm. The workspace defining module includes a sensing region arranged on a peripheral area around the robot arm. The workspace defining module determines whether the object enters an operating space according to the position of the object in the sensing region, and sets the working range and the working mode of the robot arm according to which operating space the object has entered. The control module, connected to the robot arm, the pressure sensing module and the workspace defining module, switches the operating mode and outputs a motor driving signal to the robot arm according to the working mode of the robot arm.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: February 11, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jui-Yiao Su, Yan-Chen Liu, Chang-Yi Chen, Ching-Shun Chen, Wen-Ching Ko, Hung-Hsiu Yu, Jwu-Sheng Hu
  • Patent number: 10144125
    Abstract: A control device of robot arm including a pressure sensing module and a control module is provided. The pressure sensing module, disposed on an operating portion of a robot arm, has a touch-sensing surface for detecting an operation command applied to the touch-sensing surface. The control module receives at least a pressure sensing signal outputted by the pressure sensing module and outputs a motor driving signal to the robot arm in response to the operation command. The touch-sensing surface includes a first touch-sensing region and a second touch-sensing region. The first touch-sensing region is for defining a first reference coordinate system satisfying a translational motion mode. The second touch-sensing region is for defining a second reference coordinate system satisfying a rotational motion mode. The control module controls the robot arm according to the operation command.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: December 4, 2018
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jui-Yiao Su, Yan-Chen Liu, Ching-Shun Chen, Chang-Yi Chen, Cheng-Li Wu, Hung-Hsiu Yu
  • Publication number: 20180043549
    Abstract: A robot arm control device includes a pressure sensing module, a workspace defining module and a control module. The pressure sensing module, arranged on a robot arm, detects whether an object hits or touches the robot arm to switch the operating mode of the robot arm. The workspace defining module includes a sensing region arranged on a peripheral area around the robot arm. The workspace defining module determines whether the object enters an operating space according to the position of the object in the sensing region, and sets the working range and the working mode of the robot arm according to which operating space the object has entered. The control module, connected to the robot arm, the pressure sensing module and the workspace defining module, switches the operating mode and outputs a motor driving signal to the robot arm according to the working mode of the robot arm.
    Type: Application
    Filed: December 29, 2016
    Publication date: February 15, 2018
    Inventors: Jui-Yiao Su, Yan-Chen Liu, Chang-Yi Chen, Ching-Shun Chen, Wen-Ching Ko, Hung-Hsiu Yu, Jwu-Sheng Hu
  • Publication number: 20180043525
    Abstract: A control device of robot arm including a pressure sensing module and a control module is provided. The pressure sensing module, disposed on an operating portion of a robot arm, has a touch-sensing surface for detecting an operation command applied to the touch-sensing surface. The control module receives at least a pressure sensing signal outputted by the pressure sensing module and outputs a motor driving signal to the robot arm in response to the operation command. The touch-sensing surface includes a first touch-sensing region and a second touch-sensing region. The first touch-sensing region is for defining a first reference coordinate system satisfying a translational motion mode. The second touch-sensing region is for defining a second reference coordinate system satisfying a rotational motion mode. The control module controls the robot arm according to the operation command.
    Type: Application
    Filed: December 28, 2016
    Publication date: February 15, 2018
    Inventors: Jui-Yiao Su, Yan-Chen Liu, Ching-Shun Chen, Chang-Yi Chen, Cheng-Li Wu, Hung-Hsiu Yu
  • Patent number: 9784626
    Abstract: A pressure array sensor module, comprising an array electrode board, a plurality of pressure sensing elements, at least one first conductive structure and at least one second conductive structure is provided. The array electrode board comprises a substrate and an electrode array disposed on the substrate and having a first electrode pattern and a second electrode pattern. Each pressure sensing element is disposed at a sensing position on the array electrode board, and comprises a top electrode layer, a bottom electrode layer and at least one pressure sensing layer disposed between the top electrode layer and the bottom electrode layer. The top electrode layer has a first lead. The bottom electrode layer has a second lead. The first conductive structure electrically connects the first lead and the corresponding first electrode pattern. The second conductive structure electrically connects the second lead and the corresponding second electrode pattern.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 10, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Yi Chen, Jui-Yiao Su, Yan-Chen Liu, Chang-Ho Liou
  • Patent number: 9651434
    Abstract: A pressure array sensor module including an array electrode board, a plurality of pressure sensing elements, at least one first conductive structure and at least one second conductive structure is provided. The array electrode board includes a substrate and an array electrode. The array electrode, disposed on the substrate, has a first electrode pattern and a second electrode pattern. Each pressure sensing element, disposed on a sensing position of the array electrode board, includes a top electrode layer, a bottom electrode layer and at least one pressure sensing layer disposed between the top and bottom electrode layers. The top electrode layer has a first lead. The bottom electrode layer has a second lead. The first conductive structure is electrically connected between each first lead and a corresponding first electrode pattern. The second conductive structure is electrically connected between each second lead and a corresponding second electrode pattern.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: May 16, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Jui-Yiao Su, Yan-Chen Liu, Chang-Yi Chen, Ching-Shun Chen, Wen-Ching Ko
  • Publication number: 20160097689
    Abstract: A pressure array sensor module including an array electrode board, a plurality of pressure sensing elements, at least one first conductive structure and at least one second conductive structure is provided. The array electrode board includes a substrate and an array electrode. The array electrode, disposed on the substrate, has a first electrode pattern and a second electrode pattern. Each pressure sensing element, disposed on a sensing position of the array electrode board, includes a top electrode layer, a bottom electrode layer and at least one pressure sensing layer disposed between the top and bottom electrode layers. The top electrode layer has a first lead. The bottom electrode layer has a second lead. The first conductive structure is electrically connected between each first lead and a corresponding first electrode pattern. The second conductive structure is electrically connected between each second lead and a corresponding second electrode pattern.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 7, 2016
    Inventors: Jui-Yiao SU, Yan-Chen LIU, Chang-Yi CHEN, Ching-Shun CHEN, Wen-Ching KO
  • Publication number: 20160097688
    Abstract: A pressure array sensor module, comprising an array electrode board, a plurality of pressure sensing elements, at least one first conductive structure and at least one second conductive structure is provided. The array electrode board comprises a substrate and an electrode array disposed on the substrate and having a first electrode pattern and a second electrode pattern. Each pressure sensing element is disposed at a sensing position on the array electrode board, and comprises a top electrode layer, a bottom electrode layer and at least one pressure sensing layer disposed between the top electrode layer and the bottom electrode layer. The top electrode layer has a first lead. The bottom electrode layer has a second lead. The first conductive structure electrically connects the first lead and the corresponding first electrode pattern. The second conductive structure electrically connects the second lead and the corresponding second electrode pattern.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 7, 2016
    Inventors: Chang-Yi Chen, Jui-Yiao Su, Yan-Chen Liu, Chang-Ho Liou
  • Patent number: 9073208
    Abstract: A gripper apparatus and its control method are provided. The gripper apparatus includes at least one gripper unit, and each gripper unit is configured with a first connecting rod and a second connecting rod. In addition, there is an elastic part disposed at the joint of the first and the second connecting rods, an encoder and a controller. Thereby, the controller is enabled to control the gripper apparatus to move toward an object in a first mode so as to enable the gripper unit to engage the object and thus exert a force upon the object. Consequently, the elastic part is deformed and the deformation of the elastic part is measured and encoded by the encoder into a force information to be transmitted to the controller for enabling the controller to switch the control of the gripper apparatus into a second mode according to the force information.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: July 7, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Der Chung, Yan-Chen Liu, Chwan-Hsen Chen, Cheng-Yen Li
  • Publication number: 20140180477
    Abstract: A gripper apparatus and its control method are provided. The gripper apparatus includes at least one gripper unit, and each gripper unit is configured with a first connecting rod and a second connecting rod. In addition, there is an elastic part disposed at the joint of the first and the second connecting rods, an encoder and a controller. Thereby, the controller is enabled to control the gripper apparatus to move toward an object in a first mode so as to enable the gripper unit to engage the object and thus exert a force upon the object. Consequently, the elastic part is deformed and the deformation of the elastic part is measured and encoded by the encoder into a force information to be transmitted to the controller for enabling the controller to switch the control of the gripper apparatus into a second mode according to the force information.
    Type: Application
    Filed: May 15, 2013
    Publication date: June 26, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: WEI-DER CHUNG, YAN-CHEN LIU, CHWAN-HSEN CHEN, CHENG-YEN LI
  • Patent number: 8712704
    Abstract: A defect detection system and method enable a fastened crystalline silicon product to generate micro-vibration by a micro-vibration excitation device, so as to enable the crystalline silicon product to generate an excitation signal, then to acquire the excitation signal by a acquisition device, so as to analyze the excitation signal acquired by the acquisition device in the time and frequency domain by an analysis detection device with a specific analysis, and to obtain an analysis result, at last, determine a defect state of the crystalline silicon product according to the analysis result.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 29, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Jui-Yiao Su, Yu-Liang Chung, Chun-Chieh Wang, Chien-Feng Wu, Yan-Chen Liu
  • Patent number: 8688308
    Abstract: A method for navigation of a movable platform is provided. The method includes the steps. First, a plurality of reflection devices is placed to mark a range. A coordinate location and a direction of the movable platform are received by a positioning system, At least one laser to measure relative positions and distances between the reflection devices and the movable platform are emitted by a laser range finder, respectively. Absolute locations of the reflection devices and the range are calculated by a processor according to the coordinate location and the direction of the movable platform, the relative positions and the distances between the reflection devices and the movable platform. The reflection devices are scanned and tracked by the processor, and the coordinate location and the direction of the movable platform and the absolute locations are calibrated by the processor to control the movable platform to move in the range.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 1, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Feng Wu, Yan-Chen Liu, Tsung-Liang Wu, Chun-Chieh Wang, Yu-Liang Chung
  • Publication number: 20120016600
    Abstract: A defect detection system and method enable a fastened crystalline silicon product to generate micro-vibration by a micro-vibration excitation device, so as to enable the crystalline silicon product to generate an excitation signal, then to acquire the excitation signal by a acquisition device, so as to analyze the excitation signal acquired by the acquisition device in the time and frequency domain by an analysis detection device with a specific analysis, and to obtain an analysis result, at last, determine a defect state of the crystalline silicon product according to the analysis result.
    Type: Application
    Filed: September 10, 2010
    Publication date: January 19, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jui-Yiao SU, Yu-Liang Chung, Chun-Chieh Wang, Chien-Feng Wu, Yan-Chen Liu