Patents by Inventor Hsing Liu

Hsing 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: 20240377828
    Abstract: An operation method of a mobility aid includes following steps: detecting a distance between the mobility aid and a sensing target by a distance sensor; detecting a three-axis angle of the mobility aid by an inertial measurement unit; loading and executing an artificial intelligence model from a storage device by a processing device to calculate a suggested speed value according to the artificial intelligence model and an input parameter set, wherein the input parameter set comprises the distance and the three-axis angle; and moving the mobility aid by a power output device according to the suggested speed value.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 14, 2024
    Inventors: Chen-Yi LIANG, Hsin-Wen Kuo, Cheng Hsing Liu
  • Publication number: 20240374458
    Abstract: An electric assistive device is provided. The electric assistive device includes a power wheel module, an upper control module, and a power control module. The upper control module is configured to provide a dynamic characteristic parameter. The power control module is coupled to the power wheel module and the upper control module. In response to operating the electric assistive device in an auxiliary walking mode, the power control module adaptively generates a first vehicle speed parameter according to a dynamic characteristic parameter and a force estimation parameter. The power control module generates a voltage control signal according to the first vehicle speed parameter. The power control module drives the power wheel module according to the voltage control signal.
    Type: Application
    Filed: June 7, 2023
    Publication date: November 14, 2024
    Applicant: Wistron Corporation
    Inventors: Shih Wei Hung, Cheng-Hsing Liu
  • Publication number: 20240258370
    Abstract: A semiconductor component including a semiconductor layer, a barrier layer, a leakage current suppression layer, an ohmic contact layer and an electrode layer is provided. The semiconductor layer has a protrusion and a top surface, adjacent to the protrusion. The protrusion includes a top surface and a side surface. The barrier layer is disposed on the top surface of the protrusion. The leakage current suppression layer is disposed on the top surface of the semiconductor layer. The ohmic contact layer is disposed on the leakage current suppression layer, and contacts the side surface of the protrusion and a side surface of the barrier layer. The ohmic contact layer does not contact the top surface of the semiconductor layer. The electrode layer is disposed on the ohmic contact layer.
    Type: Application
    Filed: December 17, 2023
    Publication date: August 1, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Hsueh-Hsing Liu, Chia-Lung Tsai
  • Publication number: 20240064867
    Abstract: A temperature control assembly includes a plurality of heating units and a plurality of temperature sensors. The heating units are arranged in a ring shape, and the temperature sensors are respectively arranged on the heating units. Each of the heating units includes a bearing hole and a heating body. The heating body surrounds the bearing hole and is configured to generate heat, and each of the temperature sensors is configured to sense a temperature.
    Type: Application
    Filed: November 29, 2022
    Publication date: February 22, 2024
    Inventors: Chen-An SUNG, Chiung-Wei CHEN, Cheng-Hsing LIU
  • Patent number: 11890256
    Abstract: An active rollator includes an auxiliary frame, a driving assembly, a sensing assembly, and a controller. The sensing assembly is configured to sense an operation area and output a sensing signal. When a user holds handlebars of the auxiliary frame and stands in the operation area, the controller is configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have a motion. Therefore, the active rollator aids the travel of the user.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: February 6, 2024
    Assignee: WISTRON CORPORATION
    Inventors: Ming-Ru Syue, Cheng-Hsing Liu, Jia-Hung Lee
  • Patent number: 11742394
    Abstract: Provided are a semiconductor substrate and a transistor. The semiconductor substrate includes a base, an insulating layer, a semiconductor layer, a wide bandgap diffusion buffer layer and a nucleation layer. The insulating layer is disposed on the base. The semiconductor layer is disposed on the insulating layer. The wide bandgap diffusion buffer layer is disposed on the semiconductor layer, wherein the bandgap of the wide bandgap buffer diffusion layer is higher than 2.5 eV. The nucleation layer is disposed on the wide bandgap diffusion buffer layer, wherein the nucleation layer includes an aluminum-containing layer.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: August 29, 2023
    Assignee: Industrial Technology Research Institute
    Inventor: Hsueh-Hsing Liu
  • Publication number: 20230129528
    Abstract: Provided are a semiconductor substrate and a transistor. The semiconductor substrate includes a base, an insulating layer, a semiconductor layer, a wide bandgap diffusion buffer layer and a nucleation layer. The insulating layer is disposed on the base. The semiconductor layer is disposed on the insulating layer. The wide bandgap diffusion buffer layer is disposed on the semiconductor layer, wherein the bandgap of the wide bandgap buffer diffusion layer is higher than 2.5 eV. The nucleation layer is disposed on the wide bandgap diffusion buffer layer, wherein the nucleation layer includes an aluminum-containing layer.
    Type: Application
    Filed: December 8, 2021
    Publication date: April 27, 2023
    Applicant: Industrial Technology Research Institute
    Inventor: Hsueh-Hsing Liu
  • Publication number: 20230132155
    Abstract: Provided is a semiconductor substrate with a balance stress. The semiconductor substrate includes a ceramics base, a nucleation layer and a first buffer layer doped with a first dopant. The ceramics base has an off-cut angle other than 0 degree. The nucleation layer is disposed on the ceramics base. The first buffer layer is disposed on the nucleation layer. The first dopant includes C, Fe or a combination thereof. The first buffer layer provides compressive stress to the ceramic base. The concentration of the first dopant in the first buffer layer is increased away from the ceramics base. The curvature of the semiconductor substrate is between 16 km?1 and ?16 km?1.
    Type: Application
    Filed: November 28, 2022
    Publication date: April 27, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu
  • Patent number: 11471362
    Abstract: A walker is provided. The walker includes a walker body, a handle unit, a first wheel unit and a second wheel unit. The handle unit is connected to the walker body. The first wheel unit is connected to the walker body. The second wheel unit is connected to the walker body. In an auxiliary mode, a first gap is formed between the first wheel unit and the second wheel unit. In a driving mode, a second gap is formed between the first wheel unit and the second wheel unit. The first gap is smaller than the second gap.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: October 18, 2022
    Assignee: WISTRON CORP.
    Inventors: Chen Yi Liang, Cheng Hsing Liu, Chien-Wei Chen
  • Patent number: 11382821
    Abstract: A movable carrier includes a main body, a first wheel, a driving module, a first support member, a second wheel, a seat, a first handle and two first switches. The first wheel is pivotally connected to the main body. The driving module is disposed in the main body. The first support member is connected to the driving module. The second wheel is pivotally connected to the first support member. The seat is disposed on the main body. The first handle is pivotally connected to the seat and has a trigger portion. The first switches are disposed on the seat. When the first handle rotates with respect to the seat and the trigger portion triggers the first switch, the driving module drives the first support member to rotate with respect to the main body, so as to increase or decrease a distance between the first wheel and the second wheel.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 12, 2022
    Assignee: Wistron Corporation
    Inventors: Chen-Yi Liang, Cheng-Hsing Liu, Chien-Wei Chen
  • Publication number: 20220192904
    Abstract: A barrier overcoming method for a mobile assistive device is disclosed. The barrier overcoming method includes sensing a surrounding environment of the mobile assistive device; determining whether a dangerous terrain exists in the surrounding environment of the mobile assistive device; determining whether the dangerous terrain belongs to a conquerable obstacle when the dangerous terrain exists in the surrounding environment around the mobile assistive device; and adjusting a status of the mobile assistive device to overcome the dangerous terrain when the dangerous terrain belongs to a conquerable obstacle.
    Type: Application
    Filed: March 22, 2021
    Publication date: June 23, 2022
    Inventors: Ming-Ru Syue, Cheng-Hsing Liu
  • Publication number: 20220096311
    Abstract: An active rollator includes an auxiliary frame, a driving assembly, a sensing assembly, and a controller. The sensing assembly is configured to sense an operation area and output a sensing signal. When a user holds handlebars of the auxiliary frame and stands in the operation area, the controller is configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have a motion. Therefore, the active rollator aids the travel of the user.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 31, 2022
    Inventors: Ming-Ru Syue, Cheng-Hsing Liu, Jia-Hung Lee
  • Patent number: 11253418
    Abstract: An omnidirectional wheel is provided. The omnidirectional wheel includes a support unit, a major wheel, a first minor wheel and a second minor wheel. The major wheel is annular and is rotatably disposed on the support unit. The first minor wheel is rotatably disposed on the support unit. The first minor wheel is disposed on one side of the major wheel. The second minor wheel is rotatably disposed on the support unit. The second minor wheel is disposed on the other side of the major wheel. The omnidirectional wheel can easily roll over an obstacle when the omnidirectional wheel rolls laterally or forward.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: February 22, 2022
    Assignee: WISTRON CORP.
    Inventors: Chen Yi Liang, Cheng Hsing Liu, Chien-Wei Chen
  • Patent number: 11233173
    Abstract: An ultraviolet C light-emitting diode including an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a two-dimensional hole gas (2DHG) inducing layer, and an electron blocking layer is provided. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer, wherein a wavelength of a maximum peak of a spectrum emitted by the active layer ranges from 230 nm to 280 nm. The two-dimensional hole gas (2DHG) inducing layer is disposed between the active layer and the p-type semiconductor layer. A concentration of magnesium in the 2DHG inducing layer is less than 1017 atoms/cm3. The electron blocking layer is disposed between the p-type semiconductor layer and the 2DHG inducing layer. A concentration of magnesium in a part of the electron blocking layer adjacent to the 2DHG inducing layer is greater than 1019 atoms/cm3.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 25, 2022
    Assignees: Industrial Technology Research Institute, OPTO TECH CORP.
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu, Chang Da Tsai
  • Patent number: 11206746
    Abstract: A fluid heat dissipation device is provided. The fluid heat dissipation device includes a heat sink body and a plurality of pasting elements. The heat sink body is a porous structure, and pores of the heat sink body are configured to enable the heat sink body to absorb a working fluid that can be liquid or gas. The pasting elements are fixed on a first surface of the heat sink body. The pasting elements include polymer materials and are sheet-like colloids. The heat sink body is fixedly attached onto an outer surface of an electronic device through the pasting elements. A thickness gap of the pasting element is a vaporization chamber, and the working fluid in the pores can absorb heat from the electronic device and then be vaporized to remove heat through the heat sink body.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: December 21, 2021
    Inventor: Chia-Hsing Liu
  • Publication number: 20210385972
    Abstract: A fluid heat dissipation device is provided. The fluid heat dissipation device includes a heat sink body and a plurality of pasting elements. The heat sink body is a porous structure, and pores of the heat sink body are configured to enable the heat sink body to absorb a working fluid that can be liquid or gas. The pasting elements are fixed on a first surface of the heat sink body. The pasting elements include polymer materials and are sheet-like colloids. The heat sink body is fixedly attached onto an outer surface of an electronic device through the pasting elements. A thickness gap of the pasting element is a vaporization chamber, and the working fluid in the pores can absorb heat from the electronic device and then be vaporized to remove heat through the heat sink body.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 9, 2021
    Inventor: CHIA-HSING LIU
  • Publication number: 20210290475
    Abstract: A walker is provided. The walker includes a walker body, a handle unit, a first wheel unit and a second wheel unit. The handle unit is connected to the walker body. The first wheel unit is connected to the walker body. The second wheel unit is connected to the walker body. In an auxiliary mode, a first gap is formed between the first wheel unit and the second wheel unit. In a driving mode, a second gap is formed between the first wheel unit and the second wheel unit. The first gap is smaller than the second gap.
    Type: Application
    Filed: July 21, 2020
    Publication date: September 23, 2021
    Inventors: Chen Yi LIANG, Cheng Hsing LIU, Chien-Wei CHEN
  • Publication number: 20210154085
    Abstract: An omnidirectional wheel is provided. The omnidirectional wheel includes a support unit, a major wheel, a first minor wheel and a second minor wheel. The major wheel is annular and is rotatably disposed on the support unit. The first minor wheel is rotatably disposed on the support unit. The first minor wheel is disposed on one side of the major wheel. The second minor wheel is rotatably disposed on the support unit. The second minor wheel is disposed on the other side of the major wheel. The omnidirectional wheel can easily roll over an obstacle when the omnidirectional wheel rolls laterally or forward.
    Type: Application
    Filed: April 15, 2020
    Publication date: May 27, 2021
    Inventors: Chen Yi LIANG, Cheng Hsing LIU, Chien-Wei CHEN
  • Publication number: 20210130645
    Abstract: The present invention provides a compound comprising EO (ethylene oxide)/PO (propylene oxide) block copolymer which can be used as an emulsifier. The present invention also provides a water-borne epoxy resin composition comprising the compound and a coating composition comprising the water-borne epoxy resin composition. The advantages of the present invention is that the epoxy resin composition or the coating composition, which the compound of the present invention is added to, enhances the compatibility between water and epoxy resin, and enhances the anticorrosive properties of the epoxy resin composition and the coating composition.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 6, 2021
    Inventors: YING-JUI LIN, LIANG-HSING LIU, YUNG-SHENG LIN, KUO-PIN WU, I-CHIANG LAI, YI-SERN WONG, KUEN-YUAN HWANG
  • Patent number: 10957814
    Abstract: An ultraviolet C light-emitting diode includes an n-type semiconductor layer, a p-type semiconductor layer, an active layer, a first electron blocking layer, and a second electron blocking layer. The active layer is disposed between the n-type semiconductor layer and the p-type semiconductor layer. The wavelength of the maximum peak of the spectrum emitted by the active layer ranges from 230 nanometers to 280 nanometers. The concentration of magnesium in the active layer is less than 1017 atoms/cm3. The first electron blocking layer and the second electron blocking layer are disposed between the p-type semiconductor layer and the active layer. The concentration of magnesium in the second electron blocking layer is greater than that of the first electron blocking layer and is greater than 1018 atoms/cm3.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: March 23, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Lung Tsai, Hsueh-Hsing Liu