Patents by Inventor Chih-Hsiang Liu

Chih-Hsiang 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).

  • Patent number: 11947745
    Abstract: A handwriting data processing method is applied to a pen display having wireless communication function and a data processing device. The handwriting data processing method includes the steps of: the data processing device obtaining a handwriting data from the pen display in a wireless communication manner; the data processing device generating a compressed screen image and transmitting the data of the compressed screen image and the handwriting data, which is not compressed, to the pen display in the wireless communication manner; the pen display uncompressing the data of the compressed screen image and overlapping the uncompressed screen image and the handwriting data to form a complete screen image and displaying the complete screen image. By the handwriting processing method, the machine time of the processor of the pen display is effectively lowered, significantly reducing the delay phenomenon of the displayed handwriting.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: April 2, 2024
    Assignee: USI ELECTRONICS (SHENZHEN) CO., LTD.
    Inventors: Chih-Hsiang Chen, Chi-Hua Shih, Huang-Chu Liu, Jan-Yi Hsiao
  • Publication number: 20240096781
    Abstract: A package structure including a semiconductor die, a redistribution circuit structure and an electronic device is provided. The semiconductor die is laterally encapsulated by an insulating encapsulation. The redistribution circuit structure is disposed on the semiconductor die and the insulating encapsulation. The redistribution circuit structure includes a colored dielectric layer, inter-dielectric layers and redistribution conductive layers embedded in the inter-dielectric layers. The electronic device is disposed over the colored dielectric layer and electrically connected to the redistribution circuit structure.
    Type: Application
    Filed: March 20, 2023
    Publication date: March 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Ti Lu, Hao-Yi Tsai, Chia-Hung Liu, Yu-Hsiang Hu, Hsiu-Jen Lin, Tzuan-Horng Liu, Chih-Hao Chang, Bo-Jiun Lin, Shih-Wei Chen, Hung-Chun Cho, Pei-Rong Ni, Hsin-Wei Huang, Zheng-Gang Tsai, Tai-You Liu, Po-Chang Shih, Yu-Ting Huang
  • Patent number: 11843173
    Abstract: An antenna module and a wireless transceiver device are provided. The wireless transceiver device includes an antenna module. The antenna module includes a circuit board and at least one antenna array. The at least one antenna array defines a midline. The at least one antenna array includes a plurality of antenna elements and a signal feeding line. Each antenna element includes a feeding branch and a radiating portion. The radiating portion is coupling to the feeding branch, and the radiating portion is exposed on the upper surface of the circuit board. The signal feeding line is arranged in the circuit board and is perpendicular to the midline, and the signal feeding line is coupling to the feeding branch. The radiating portion defines an extension line along its extension direction. There is an included angle between the extension line and the midline.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: December 12, 2023
    Assignee: WISTRON NEWEB CORPORATION
    Inventors: Chih-Hsiang Liu, Tsun-Che Huang, Wei-Tung Yang
  • Publication number: 20230184819
    Abstract: A method for inspecting LED dies includes the following steps. First electrodes and second electrodes of LED dies to be inspected are short-circuited via a conductive layer on an inspection substrate, or an inspection bias voltage is applied between the first electrodes and the second electrodes of the LED dies. An excitation light is irradiated on the LED dies to be inspected on the inspection substrate such that the LED dies to be inspected emit a secondary light. When the first electrodes and the second electrodes of the LED dies to be inspected are open, short-circuited, and/or subjected to the inspection bias voltage, the secondary light is captured via an optical sensor. An output of the optical sensor is received via a computer and a spectrum difference of the secondary light is calculated to determine whether the LED dies are abnormal or to classify the LED dies to be inspected.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo
  • Publication number: 20230160879
    Abstract: A method of training AI for label-free cell viability determination includes a step of providing a cell sample, a step of obtaining a fluorescence image and a DHM image of the cell sample, a step of determining a first cell viability of the cell sample according to the fluorescence image of the cell sample, a step of labeling the DHM image of the cell sample as a model specifying the first cell viability, and a step of performing AI training by using the model containing the DHM image of the cell sample.
    Type: Application
    Filed: December 28, 2021
    Publication date: May 25, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun WEI, Chih-Hsiang LIU, Chung-Lun KUO, Chun-Wei LO, Chia-Hung CHO, Wei-Hsiung TSAI
  • Patent number: 11656181
    Abstract: An inspection apparatus for inspecting a light-emitting diode wafer is provided. The inspection apparatus includes a Z-axis translation stage, a sensing probe, a height measurement module, a carrier, an illumination light source, and a processing device. The sensing probe is integrated with the Z-axis translation stage. The Z-axis translation stage is adapted to drive the sensing probe to move in a Z axis. The sensing probe includes a photoelectric sensor, a beam splitter, and a photoelectric sensing structure. One of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam penetrating the beam splitter, and the other one of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam reflected by the beam splitter. The carrier is configured to carry the light-emitting diode wafer. The illumination light source is configured to emit an illumination beam to irradiate the light-emitting diode wafer.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 23, 2023
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo, Hsiang-Chun Wei, Yeou-Sung Lin, Chieh-Yi Lo
  • Publication number: 20230152086
    Abstract: A heterogeneous integration detecting method and a heterogeneous integration detecting apparatus are provided. The heterogeneous integration detecting method includes the following. Under the condition of maintaining the same relative distance between an interference objective lens and a sample, the relative posture of the interference objective lens and the sample is continuously adjusted according to the change of an image of the sample in the field of view of the interference objective lens until a first optical axis of the interference objective lens is determined to be substantially perpendicular to the surface of the sample according to the image. The interference objective lens is replaced with an imaging objective lens and the geometric profile of at least one via of the sample is detected. A second optical axis of the imaging objective lens after replacement overlaps with the first optical axis of the interference objective lens before replacement.
    Type: Application
    Filed: December 27, 2021
    Publication date: May 18, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Hsiang-Chun Wei, Chih-Hsiang Liu, Yi-Sha Ku, Chung-Lun Kuo, Chun-Wei Lo, Chieh-Yi Lo
  • Publication number: 20220416435
    Abstract: An antenna module and a wireless transceiver device are provided. The wireless transceiver device includes an antenna module. The antenna module includes a circuit board and at least one antenna array. The at least one antenna array defines a midline. The at least one antenna array includes a plurality of antenna elements and a signal feeding line. Each antenna element includes a feeding branch and a radiating portion. The radiating portion is coupling to the feeding branch, and the radiating portion is exposed on the upper surface of the circuit board. The signal feeding line is arranged in the circuit board and is perpendicular to the midline, and the signal feeding line is coupling to the feeding branch. The radiating portion defines an extension line along its extension direction. There is an included angle between the extension line and the midline.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 29, 2022
    Inventors: CHIH-HSIANG LIU, TSUN-CHE HUANG, WEI-TUNG YANG
  • Patent number: 11507020
    Abstract: An optical measurement system comprises a polarization beam splitter for dividing an incident beam into a reference beam and a measurement beam, a first beam splitter for reflecting the measurement beam to form a first reflected measurement beam, a spatial light modulator for modulating the first reflected measurement beam to form a modulated measurement beam, a condenser lens for focusing the modulated measurement beam to an object to form a penetrating measurement beam, an objective lens for converting the penetrating measurement beam into a parallel measurement beam, a mirror for reflecting the parallel measurement beam to form an object beam, a second beam splitter for reflecting the reference beam to a path coincident with that of the object beam, and a camera for receiving an interference signal generated by the reference beam and the object beam to generate an image of the object.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: November 22, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun Wei, Chung-Lun Kuo, Chia-Hung Cho, Chun-Wei Lo, Chih-Hsiang Liu
  • Patent number: 11474144
    Abstract: An inspection apparatus including an illumination light source, a sensing probe and a processing device is provided. The illumination light source emits an illumination beam to simultaneously irradiate the plurality of light-emitting diode. The sensing probe is configured to measure a charge distribution, an electric field distribution, or a voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. The processing device determines a plurality of electro-optical characteristics of the plurality of light-emitting diodes through the charge distribution, the electric field distribution, or the voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. Moreover, a method of for inspecting light-emitting diodes is also provided.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: October 18, 2022
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chung-Lun Kuo, Chih-Hsiang Liu, Shie-Chang Jeng
  • Patent number: 11248903
    Abstract: A three-dimension measurement device includes a moving device, a projecting device, a surface-type image-capturing device and a processing device. The moving device carries an object, and moves the object to a plurality of positions. The projecting device generates a first light to the object. The surface-type image-capturing device senses a second light generated by the object in response to the first light to generate a phase image on each of the positions. The processing device is coupled to the surface-type image-capturing device and receives the phase images. The processing device performs a region-of-interest (ROI) operation for the phase images to generate a plurality of ROI images. The processing device performs a multi-step phase-shifting operation for the ROI images to calculate the surface height distribution of the object.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 15, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chia-Hung Cho, Po-Yi Chang, Yi-Sha Ku, Kai-Ping Chuang, Chih-Hsiang Liu, Fu-Cheng Yang
  • Publication number: 20210231570
    Abstract: An inspection apparatus for inspecting a light-emitting diode wafer is provided. The inspection apparatus includes a Z-axis translation stage, a sensing probe, a height measurement module, a carrier, an illumination light source, and a processing device. The sensing probe is integrated with the Z-axis translation stage. The Z-axis translation stage is adapted to drive the sensing probe to move in a Z axis. The sensing probe includes a photoelectric sensor, a beam splitter, and a photoelectric sensing structure. One of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam penetrating the beam splitter, and the other one of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam reflected by the beam splitter. The carrier is configured to carry the light-emitting diode wafer. The illumination light source is configured to emit an illumination beam to irradiate the light-emitting diode wafer.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 29, 2021
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo, Hsiang-Chun Wei, Yeou-Sung Lin, Chieh-Yi Lo
  • Publication number: 20210149337
    Abstract: An optical measurement system comprises a polarization beam splitter for dividing an incident beam into a reference beam and a measurement beam, a first beam splitter for reflecting the measurement beam to form a first reflected measurement beam, a spatial light modulator for modulating the first reflected measurement beam to form a modulated measurement beam, a condenser lens for focusing the modulated measurement beam to an object to form a penetrating measurement beam, an objective lens for converting the penetrating measurement beam into a parallel measurement beam, a mirror for reflecting the parallel measurement beam to form an object beam, a second beam splitter for reflecting the reference beam to a path coincident with that of the object beam, and a camera for receiving an interference signal generated by the reference beam and the object beam to generate an image of the object.
    Type: Application
    Filed: September 22, 2020
    Publication date: May 20, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun WEI, Chung-Lun KUO, Chia-Hung CHO, Chun-Wei LO, Chih-Hsiang LIU
  • Patent number: 11005559
    Abstract: A repeater includes an up-link circuit and a down-link circuit. The down-link circuit includes a receiver, a radio frequency circuit and a transmitter. The transmitter transmits the repeated second signals to the user equipment and includes an antenna array, a plurality of power amplifiers, a plurality of first phase shifters, a first memory unit, and a first control logic circuit. The antenna array includes a plurality of antenna elements arranged along a first direction, and the number of the plurality of antenna elements is at least four. The first memory unit is configured to store predetermined parameters associated with a predetermined radiation pattern. The first control logic circuit selects a first number of the power amplifiers and the first number of the first phase shifters, and sets normalized gains for the selected plurality of power amplifiers range from 0.7 to 1 unit.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: May 11, 2021
    Assignee: WISTRON NEWEB CORPORATION
    Inventors: Chih-Hsiang Liu, Tsun-Che Huang, Horen Chen
  • Patent number: 11002783
    Abstract: A method for inspecting light-emitting diodes (LEDs) including following steps is provided. A plurality of LEDs are provided. A charge distribution, an electrical field distribution, or a voltage distribution on the LEDs that are irradiated by an illumination beam at the same time are inspected by a sensing probe, so as to determine electro-optical characteristics of the LEDs. Besides, an inspection apparatus is also provided.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: May 11, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Shie-Chang Jeng
  • Publication number: 20210080252
    Abstract: A three-dimension measurement device includes a moving device, a projecting device, a surface-type image-capturing device and a processing device. The moving device carries an object, and moves the object to a plurality of positions. The projecting device generates a first light to the object. The surface-type image-capturing device senses a second light generated by the object in response to the first light to generate a phase image on each of the positions. The processing device is coupled to the surface-type image-capturing device and receives the phase images. The processing device performs a region-of-interest (ROI) operation for the phase images to generate a plurality of ROI images. The processing device performs a multi-step phase-shifting operation for the ROI images to calculate the surface height distribution of the object.
    Type: Application
    Filed: December 17, 2019
    Publication date: March 18, 2021
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Hung CHO, Po-Yi CHANG, Yi-Sha KU, Kai-Ping CHUANG, Chih-Hsiang LIU, Fu-Cheng YANG
  • Publication number: 20200371152
    Abstract: An inspection apparatus including an illumination light source, a sensing probe and a processing device is provided. The illumination light source emits an illumination beam to simultaneously irradiate the plurality of light-emitting diode. The sensing probe is configured to measure a charge distribution, an electric field distribution, or a voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. The processing device determines a plurality of electro-optical characteristics of the plurality of light-emitting diodes through the charge distribution, the electric field distribution, or the voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. Moreover, a method of for inspecting light-emitting diodes is also provided.
    Type: Application
    Filed: June 19, 2020
    Publication date: November 26, 2020
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chung-Lun Kuo, Chih-Hsiang Liu, Shie-Chang Jeng
  • Patent number: 10847903
    Abstract: An antenna structure includes a holder and a first antenna assembly. The holder includes a first board, a second board, a third board, and a fourth board. The first board, the second board, the third board, and the fourth board are connected to each other to surround a surrounding space. The first antenna assembly includes a first antenna body and a second antenna body. The first antenna body and the second antenna body are disposed in the surrounding space. The first antenna body and the second antenna body respectively include a feeding portion, a conjoining portion, and a ground portion. The ground portion of the first antenna body is connected to the first board. The ground portion of the second antenna body is connected to the second board.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: November 24, 2020
    Assignee: WISTRON NEWEB CORPORATION
    Inventors: Tsun-Che Huang, Chih-Hsiang Liu
  • Publication number: 20200274610
    Abstract: A repeater includes an up-link circuit and a down-link circuit. The down-link circuit includes a receiver, a radio frequency circuit and a transmitter. The transmitter transmits the repeated second signals to the user equipment and includes an antenna array, a plurality of power amplifiers, a plurality of first phase shifters, a first memory unit, and a first control logic circuit. The antenna array includes a plurality of antenna elements arranged along a first direction, and the number of the plurality of antenna elements is at least four. The first memory unit is configured to store predetermined parameters associated with a predetermined radiation pattern. The first control logic circuit selects a first number of the power amplifiers and the first number of the first phase shifters, and sets normalized gains for the selected plurality of power amplifiers range from 0.7 to 1 unit.
    Type: Application
    Filed: November 29, 2019
    Publication date: August 27, 2020
    Inventors: CHIH-HSIANG LIU, TSUN-CHE HUANG, HOREN CHEN
  • Publication number: 20200200817
    Abstract: A method for inspecting light-emitting diodes (LEDs) including following steps is provided. A plurality of LEDs are provided. A charge distribution, an electrical field distribution, or a voltage distribution on the LEDs that are irradiated by an illumination beam at the same time are inspected by a sensing probe, so as to determine electro-optical characteristics of the LEDs. Besides, an inspection apparatus is also provided.
    Type: Application
    Filed: December 24, 2018
    Publication date: June 25, 2020
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Shie-Chang Jeng