Patents by Inventor Yu-Chih Liang

Yu-Chih Liang 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: 20240133745
    Abstract: A temperature sensing device includes a substrate, a first reflective module, a first window cover, and a dual thermopile sensor. The first reflective module is disposed on the substrate, including a first mirror chamber with a narrow field of view (FOV), and the first reflective module focuses a thermal radiation from measured object to a first image plane in the first mirror chamber. The first window cover is disposed on the first reflective module, and the first window cover allows a selected band of the thermal radiation to pass through. The dual thermopile sensor is disposed on the substrate and located in the first mirror chamber, and the dual thermopile sensor senses a temperature data from the first image plane. Additional second reflective module, LED source plus pin hole with same FOV of dual thermopile sensor can illuminate the measured object for ease of placement of object to be heated.
    Type: Application
    Filed: October 19, 2022
    Publication date: April 25, 2024
    Inventors: Chein-Hsun WANG, Ming LE, Tung-Yang LEE, Yu-Chih LIANG, Wen-Chie HUANG, Chen-Tang HUANG, Jenping KU
  • Patent number: 11808633
    Abstract: An infrared thermopile sensor includes a silicon cover having an infrared lens, an infrared sensing chip having duo-thermopile sensing elements, and a microcontroller chip calculating a temperature of an object. The components are in a stacked 3D package to decrease the size of the infrared thermopile sensor. The infrared sensing chip and the microcontroller chip have metal layers to shield the thermal radiation. The conversion from wrist temperature to body core temperature uses detected ambient temperature and fixed humidity or imported humidity level to calculate the body core temperature based on experimental data and curve fitting. The skin temperature compensation can be set differently for different sex gender, different standard deviation of wrist temperature and external relative humidity reading.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: November 7, 2023
    Assignee: ORIENTAL SYSTEM TECHNOLOGY INC.
    Inventors: Chein-Hsun Wang, Da-Jun Lin, Chun-Chiang Chen, Chih-Yung Tsai, Yu-Chih Liang, Ming Le, Chen-Tang Huang, Tung-Yang Lee, Jenping Ku
  • Publication number: 20230047601
    Abstract: An infrared thermopile sensor includes a silicon cover having an infrared lens, an infrared sensing chip having duo-thermopile sensing elements, and a microcontroller chip calculating a temperature of an object. The components are in a stacked 3D package to decrease the size of the infrared thermopile sensor. The infrared sensing chip and the microcontroller chip have metal layers to shield the thermal radiation. The conversion from wrist temperature to body core temperature uses detected ambient temperature and fixed humidity or imported humidity level to calculate the body core temperature based on experimental data and curve fitting. The skin temperature compensation can be set differently for different sex gender, different standard deviation of wrist temperature and external relative humidity reading.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Chein-Hsun WANG, Da-Jun LIN, Chun-Chiang CHEN, Chih-Yung TSAI, Yu-Chih LIANG, Ming LE, Chen-Tang HUANG, Tung-Yang LEE, Jenping KU
  • Publication number: 20220341789
    Abstract: An infrared thermopile sensor includes a silicon cover having an infrared lens, an infrared sensing chip having duo-thermopile sensing elements, and a microcontroller chip calculating a temperature of an object. The components are in a stacked 3D package to decrease the size of the infrared thermopile sensor. The infrared sensing chip and the microcontroller chip have metal layers to shield the thermal radiation. To measure object temperature accurately under acute change in environmental temperature, this disclosure uses the duo-thermopile sensing elements, that one is the active unit for measuring the object temperature and another one is the dummy unit for compensating the effect from the package structure.
    Type: Application
    Filed: May 20, 2021
    Publication date: October 27, 2022
    Inventors: Wen-Chie HUANG, Yu-Chih LIANG, Chein-Hsun WANG, Ming LE, Chen-Tang HUANG, Chein-Hsing YU, Tung-Yang LEE, Jenping KU
  • Publication number: 20220316951
    Abstract: An infrared temperature sensor comprises a thermopile sensor and an infrared reflector, wherein the infrared reflector reflects the infrared ray radiated by a target to a first thermopile sensing element of the thermopile sensor to sense the temperature of the target. By appropriately designing the reflecting surface of the infrared reflector, a horizontal viewing angle of a sensing range of the infrared temperature sensor can be larger, while a vertical viewing angle is smaller. The thermopile sensor further comprises a second thermopile sensing element, which can sense the thermal radiation of a package structure, whereby to compensate for the measurement error induced by the temperature variation of the package structure, which results from the variation of the environmental temperature. Thus, the measurement accuracy is increased.
    Type: Application
    Filed: June 3, 2021
    Publication date: October 6, 2022
    Inventors: Ming LE, Jenping KU, Chein-Hsun WANG, Yu-Chih LIANG
  • Patent number: 11408781
    Abstract: A thermal sensor package for earbuds includes two thermopile sensor elements on a single thermopile sensor chip, and the two thermopile sensor elements are separated by a block wall of a cap. One of the thermopile sensor elements senses external infrared thermal radiation through a window of the cap, and the other thermopile sensor element senses internal infrared thermal radiation from a package structure as a basis for correcting compensation. Therefore, the foregoing thermal sensor package for earbuds can quickly correct a measurement error caused by the package structure to improve the measurement accuracy. In addition, the forgoing thermal sensor package for earbuds has a simple packaging step and is easy to arrange a silicon based infrared lens to expand its application.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: August 9, 2022
    Assignee: ORIENTAL SYSTEM TECHNOLOGY INC.
    Inventors: Chein-Hsun Wang, Ming Le, Yu-Chih Liang, Tung Yang Lee, Chih-Yung Tsai
  • Publication number: 20210364359
    Abstract: An infrared temperature sensor comprises a thermopile sensing chip. The thermopile sensing chip includes a chip substrate, a thermopile sensing unit, a heater and a temperature sensing element. The thermopile sensing unit is disposed on the chip substrate, receives infrared thermal radiation from a target and outputs a corresponding infrared sensation signal. The heater is disposed on the chip substrate and used to heat the chip substrate to a working temperature. The temperature sensing element is disposed on the chip substrate, senses the working temperature of the chip substrate and outputs a corresponding working temperature signal. In operation, the infrared temperature sensor can maintain the thermopile sensing unit at the preset working temperature. Thereby, a single-point temperature calibration is sufficient to obtain more accurate measurement results in a broad environmental temperature range.
    Type: Application
    Filed: July 9, 2020
    Publication date: November 25, 2021
    Inventors: Chein-Hsun WANG, Chen-Tang HUANG, Yu-Chih LIANG, Jenping KU
  • Publication number: 20200249101
    Abstract: A thermal sensor package for earbuds includes two thermopile sensor elements on a single thermopile sensor chip, and the two thermopile sensor elements are separated by a block wall of a cap. One of the thermopile sensor elements senses external infrared thermal radiation through a window of the cap, and the other thermopile sensor element senses internal infrared thermal radiation from a package structure as a basis for correcting compensation. Therefore, the foregoing thermal sensor package for earbuds can quickly correct a measurement error caused by the package structure to improve the measurement accuracy. In addition, the forgoing thermal sensor package for earbuds has a simple packaging step and is easy to arrange a silicon based infrared lens to expand its application.
    Type: Application
    Filed: June 14, 2019
    Publication date: August 6, 2020
    Inventors: Chein-Hsun WANG, Ming LE, Yu-Chih LIANG, Tung Yang LEE, Chih-Yung TSAI
  • Patent number: 8198320
    Abstract: The present invention relates to a method for controlling blood glucose level and a method for the prophylaxis or treatment of diabetes mellitus and/or its complications. The present invention further relates to an anti-diabetic formulation for controlling blood glucose level and/or for the prophylaxis or treatment of diabetes mellitus and/or its complications.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 12, 2012
    Assignee: Taipei Medical University
    Inventors: Yu-Chih Liang, Der-Zen Liu, Ling-Fang Hung, Pei-Jung Lin, Nai-Qi Chen, Yu-Chien Chen
  • Publication number: 20100168224
    Abstract: The present invention relates to a method for controlling blood glucose level and a method for the prophylaxis or treatment of diabetes mellitus and/or its complications. The present invention further relates to an anti-diabetic formulation for controlling blood glucose level and/or for the prophylaxis or treatment of diabetes mellitus and/or its complications.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Applicant: Taipei Medical University
    Inventors: Yu-Chih Liang, Der-Zen Liu, Ling-Fang Hung, Pei-Jung Lin, Nai-Qi Chen, Yu-Chien Chen