Patents by Inventor Tai-Shan Liao

Tai-Shan Liao 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: 11487014
    Abstract: An integrated device includes a laser ranging module, a dual-branched fiber bundle, a beam splitter, and an image receiving module. The laser ranging module includes a light source, an optical receiver and a computing unit. The fiber bundle is disposed between the laser ranging module and the beam splitter. A target reflects a measuring beam emitted by the light source to form a reflected beam. The beam splitter splits the reflected beam into a first reflected beam and a second reflected beam. The first reflected beam is transmitted to the optical receiver through the fiber bundle to generate a measurement signal. The computing unit receives the measurement signal to calculate a distance between the target and the fiber bundle. The image receiving module is disposed on the optical path of the second reflected beam to receive the second reflected beam and displays the image of the target.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 1, 2022
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Tai-Shan Liao, Long-Jeng Lee, Shih-Jie Chou, Chun-Jen Weng
  • Patent number: 11473895
    Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: October 18, 2022
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Yi-Cheng Liu, Chun-Jen Weng, Tai-Shan Liao, Guo-Hao Lu
  • Publication number: 20210172722
    Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.
    Type: Application
    Filed: July 2, 2020
    Publication date: June 10, 2021
    Inventors: YI-CHENG LIU, CHUN-JEN WENG, TAI-SHAN LIAO, GUO-HAO LU
  • Publication number: 20210096256
    Abstract: An integrated device includes a laser ranging module, a dual-branched fiber bundle, a beam splitter, and an image receiving module. The laser ranging module includes a light source, an optical receiver and a computing unit. The fiber bundle is disposed between the laser ranging module and the beam splitter. A target reflects a measuring beam emitted by the light source to form a reflected beam. The beam splitter splits the reflected beam into a first reflected beam and a second reflected beam. The first reflected beam is transmitted to the optical receiver through the fiber bundle to generate a measurement signal. The computing unit receives the measurement signal to calculate a distance between the target and the fiber bundle. The image receiving module is disposed on the optical path of the second reflected beam to receive the second reflected beam and displays the image of the target.
    Type: Application
    Filed: March 26, 2020
    Publication date: April 1, 2021
    Inventors: TAI-SHAN LIAO, LONG-JENG LEE, SHIH-JIE CHOU, CHUN-JEN WENG
  • Patent number: 10914855
    Abstract: A geomorphological structure monitoring system is disclosed, which comprises a supporting base having an accommodating space and a plurality of through holes, and at least a portion of the supporting base is embedded under a ground; a plurality of sensing devices arranged in the accommodating space vertically and embedded under the ground, the sensing devices may generate a sensing signal when the sensing devices are exposed from the ground due to the structural change of the ground; a signal processing device receiving and processing the sensing signal; and a transmission device connecting the sensing devices in series and the signal processing device.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: February 9, 2021
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Yung-Bin Lin, Tai-Shan Liao, Kuo-Chun Chang
  • Patent number: 10352698
    Abstract: Disclosed is a composite hydrological monitoring system, in which a counterweight component and a test component are respectively connected to both opposite ends of a strip and a plurality of sensors are disposed at different vertical positions. Accordingly, the scour depth can be measured by sensing the location of the counterweight component, whereas the water level and/or flow velocity can be determined by signals from the sensors. When the counterweight component moves downward with sinking of the riverbed, the strip would be pulled down and thus causes the test component to present a change in mechanical energy. Accordingly, the sinking depth can be measured by sensing the change of the mechanical energy. Additionally, since the water level variation would cause signal changes of the sensors arranged in a row along a vertical direction, the change of water level can be determined accordingly.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: July 16, 2019
    Assignee: National Applied Research Laboratories
    Inventors: Yung-Bin Lin, Yu-Chieh Chen, Tai-Shan Liao, Kuo-Chun Chang, Bo-Han Lee, Yung-Kang Wang, Meng-Huang Gu
  • Patent number: 10323963
    Abstract: A flexible optical measuring device comprises an optical distance measuring module, an optical fiber adapter and an optical coupling module. The optical distance measuring module comprises a light source, an optical receiver and a computing unit. The optical fiber adapter is disposed and connected between the optical distance measuring module and the optical coupling module. The optical coupling module comprises a first optical fiber, a two-in-one optical coupler, a detector and a second optical fiber. A measuring beam is emitted from the light source and reaches the detector. The measuring beam then passes through the detector to the object and forms a reflected beam which is reflected back to the detector, then enters the second optical fiber and passes through the optical receiver and the optical receiver outputs a measurement signal. The computing unit calculates the distance between the object and a terminal of the detector accordingly.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 18, 2019
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Tai-Shan Liao, Chi-Hung Huang, Chun-Li Chang, Shih-Jie Chou
  • Publication number: 20190120661
    Abstract: A flexible optical measuring device comprises an optical distance measuring module, an optical fiber adapter and an optical coupling module. The optical distance measuring module comprises a light source, an optical receiver and a computing unit. The optical fiber adapter is disposed and connected between the optical distance measuring module and the optical coupling module. The optical coupling module comprises a first optical fiber, a two-in-one optical coupler, a detector and a second optical fiber. A measuring beam is emitted from the light source and reaches the detector. The measuring beam then passes through the detector to the object and forms a reflected beam which is reflected back to the detector, then enters the second optical fiber and passes through the optical receiver and the optical receiver outputs a measurement signal. The computing unit calculates the distance between the object and a terminal of the detector accordingly.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 25, 2019
    Inventors: Tai-Shan LIAO, Chi-Hung HUANG, Chun-Li CHANG, Shih-Jie CHOU
  • Publication number: 20190072689
    Abstract: A geomorphological structure monitoring system is disclosed, which comprises a supporting base having an accommodating space and a plurality of through holes, and at least a portion of the supporting base is embedded under a ground; a plurality of sensing devices arranged in the accommodating space vertically and embedded under the ground, the sensing devices may generate a sensing signal when the sensing devices are exposed from the ground due to the structural change of the ground; a signal processing device receiving and processing the sensing signal; and a transmission device connecting the sensing devices in series and the signal processing device.
    Type: Application
    Filed: August 20, 2018
    Publication date: March 7, 2019
    Inventors: Yung-Bin LIN, Tai-Shan LIAO, Kuo-Chun CHANG
  • Patent number: 9810523
    Abstract: A method for determining if a wire guide roller having a plurality of V-shaped grooves, each having a copper line thereon, arranged column-by-column on a periphery direction thereof is failed after slicing a plurality of wafers is disclosed. Based on the disclosed technical means, the efficacy may be achieved that a damage situation may be automatically examined and notified to maintain a yield in the slicing process in an online high speed environment.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 7, 2017
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Yu-Hsuan Lin, Chih-Chung Yang, Kuo-Cheng Huang, Tai-Shan Liao
  • Publication number: 20170292839
    Abstract: Disclosed is a composite hydrological monitoring system, in which a counterweight component and a test component are respectively connected to both opposite ends of a strip and a plurality of sensors are disposed at different vertical positions. Accordingly, the scour depth can be measured by sensing the location of the counterweight component, whereas the water level and/or flow velocity can be determined by signals from the sensors. When the counterweight component moves downward with sinking of the riverbed, the strip would be pulled down and thus causes the test component to present a change in mechanical energy. Accordingly, the sinking depth can be measured by sensing the change of the mechanical energy. Additionally, since the water level variation would cause signal changes of the sensors arranged in a row along a vertical direction, the change of water level can be determined accordingly.
    Type: Application
    Filed: December 19, 2016
    Publication date: October 12, 2017
    Inventors: Yung-Bin LIN, Yu-Chieh CHEN, Tai-Shan LIAO, Kuo-Chun CHANG, Bo-Han LEE, Yung-Kang WANG, Meng-Huang GU
  • Patent number: 9594021
    Abstract: An apparatus is provided for detecting transmittance of a trench. The trench is located on an infrared-transmittable material, which can be a wafer. The wafer is obtained after a ditching process. An image of the wafer is fetched. The contrast of the image is greatly enhanced. The contrast-enhanced image is used for automated analysis of the transmittance of the trench. Accuracy of detecting the transmittance is improved. Hence, the present invention uses a simple structure to detect transmittance defects of the trench for ensuring goodness of the wafer.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: March 14, 2017
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chun-Fu Lin, Chun-Li Chang, Tai-Shan Liao, Hung-Ji Huang, Chi-Hung Huang
  • Publication number: 20170045448
    Abstract: An apparatus is provided for detecting transmittance of a trench. The trench is located on an infrared-transmittable material, which can be a wafer. The wafer is obtained after a ditching process. An image of the wafer is fetched. The contrast of the image is greatly enhanced. The contrast-enhanced image is used for automated analysis of the transmittance of the trench. Accuracy of detecting the transmittance is improved. Hence, the present invention uses a simple structure to detect transmittance defects of the trench for ensuring goodness of the wafer.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Chun-Fu Lin, Chun-Li Chang, Tai-Shan Liao, Hung-Ji Huang, Chi-Hung Huang
  • Publication number: 20160209202
    Abstract: A method for determining if a wire guide roller having a plurality of V-shaped grooves, each having a copper line thereon, arranged column-by-column on a periphery direction thereof is failed after slicing a plurality of wafers is disclosed. Based on the disclosed technical means, the efficacy may be achieved that a damage situation may be automatically examined and notified to maintain a yield in the slicing process in an online high speed environment.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 21, 2016
    Applicant: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Yu-Hsuan LIN, Chih-Chung YANG, Kuo-Cheng HUANG, Tai-Shan LIAO
  • Patent number: 9398286
    Abstract: A multi-image capture device capturing images by means of circular motion controls the shift movement, along a semi-circular measuring rod, of a moving mechanism by a location control device. Furthermore, a rotary control device is used to control the positioning and image-capturing angle of a second image capture device fixed on the rotary mechanism. Thereby, a first image capture device and the second image capture device are of a co-circle configuration where the optical axis of the first image capture device and the second image capture device overlap to form a center of the co-circle. Such a configuration can broaden the visual range of the image capture device, and allows quick calibration of the image capture device according to positioning of shift movement and image-capturing angles.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 19, 2016
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chi-Hung Huang, Yung-Hsiang Chen, Wei-Chung Wang, Tai-Shan Liao, Hsiao-Yu Chou
  • Patent number: 9116854
    Abstract: An image correlation for images having speckle pattern is evaluated. Modulation transfer function (MTF) curves of speckle-pattern images captured at different times are figured out. Whether a correlation value between the MTF curves meets a threshold is checked. If the correlation value is smaller than the threshold, speckle-pattern images are re-selected for re-figuring out the MTF curves and the correlation value. Thus, error of strain and displacement for digital image correlation owing to blurring images of the on-moving target object is figured out; calculation time of the digital image correlation is reduced; and accuracy on measuring physical parameters of the target object before and after movement is improved for digital image correlation.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: August 25, 2015
    Assignee: National Applied Research Laboratories
    Inventors: Chi-Hung Huang, Wei-Chung Wang, Yung-Hsiang Chen, Tzi-Hung Chung, Tai-Shan Liao
  • Patent number: 9103778
    Abstract: An image-based refractive index measuring system comprises an optical device and an electronic device. The optical device is used to guiding an external light which is passed through an analyte. The electronic device comprises an image capture module, an image analyze module and a display module. The image capture module generates a first image by capturing the external light source. The image analyze module connects to the image capture module to receive the first image, and analyzes the first image in order to generate an analytical result comprising the refractive index of the analyte. The display module connects to the image analyze module to receive and display the analytical result.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 11, 2015
    Assignee: National Applied Research Laboratories
    Inventors: Tai-Shan Liao, Chi-Hung Huang, Chih-Chieh Wu, Din Ping Tsai, Shih-Jie Chou, Cheng-Fang Ho
  • Publication number: 20150093043
    Abstract: An image correlation for images having speckle pattern is evaluated. Modulation transfer function (MTF) curves of speckle-pattern images captured at different times are figured out. Whether a correlation value between the MTF curves meets a threshold is checked. If the correlation value is smaller than the threshold, speckle-pattern images are re-selected for re-figuring out the MTF curves and the correlation value. Thus, error of strain and displacement for digital image correlation owing to blurring images of the on-moving target object is figured out; calculation time of the digital image correlation is reduced; and accuracy on measuring physical parameters of the target object before and after movement is improved for digital image correlation.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: National Applied Research Laboratories
    Inventors: CHI-HUNG HUANG, WEI-CHUNG WANG, YUNG-HSIANG CHEN, TZI-HUNG CHUNG, TAI-SHAN LIAO
  • Publication number: 20140368638
    Abstract: The present invention provides a method of mobile image identification for flow velocity and the apparatus thereof. The present invention integrates laser-light module and mobile photographing devices such as smartphones, cameras, or tablet computers. After multiple laser spots are projected on the surface of flowing water, water-surface images including the laser spots are photographed continuously. Then the software program of image identification in the mobile photographing device performs calculations and coordinate conversion. According to the difference between multiple water-surface images taken continuously, the flow-velocity information of the water surface is given.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: FRANCO LIN, WEN-YI CHANG, LUNG-CHENG LEE, HUNG-TA HSIAO, WHEY-FONE TSAI, TAI-SHAN LIAO, SHUN-CHUNG TSUNG, JIHN-SUNG LAI, CHIN-HSIUNG LOH, SHIH-CHUNG KANG, YAO-YU YANG
  • Patent number: 8908195
    Abstract: The present invention relates to a method for measuring cracks remotely and the device thereof. First, multiple laser spots with known a shape are projected onto a remote wall and beside a crack. Then, by using geometric calculations, the relative coordinates of the laser spots on the wall and the real distance can be given and used as the reference length of the crack. Next, a camera is used for taking a picture of the remote crack along with the laser spots; the image identification technology is used for calculating the relevant parameters of the crack. Thereby, to acquire the parameters of the crack, a user needs not to be present at the site for measuring at a short distance or placing a reference object, and thus providing safety and convenience.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 9, 2014
    Assignee: National Applied Research Laboratories
    Inventors: Wen-Yi Chang, Franco Lin, Lung-Cheng Lee, Hung-Ta Hsiao, Shou-I Chen, Yu-Chi Sung, Tai-Shan Liao, Chih-Yen Chen