Patents by Inventor Cheng-Jeng Chou

Cheng-Jeng Chou 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).

  • Smoke detector for false alarm reduction
    Patent number: 10741036
    Abstract: A smoke detector comprising: a first light source, configured to generate first light beam; a second light source, configured to generate second light beam; a light receiver, configured to respectively generate a first and a second original light detecting signal in response to the first light beam and the second light beam, wherein an energy conversion efficiency of the light receiver at the first wavelength is different from an energy conversion efficiency of the light receiver at the second wavelength; a signal adjusting circuit, configured to amplify the second original light detecting signal to generate a second light detecting signal; and a driving and determining circuit, configured to determine signal intensities of the first original light detecting signal and the second light detecting signal.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Sercomm Corporation
    Inventors: Meng-Chien Chiang, Cheng-Jeng Chou
  • SMOKE DETECTOR FOR FALSE ALARM REDUCTION
    Publication number: 20200250951
    Abstract: A smoke detector comprising: a first light source, configured to generate first light beam; a second light source, configured to generate second light beam; a light receiver, configured to respectively generate a first and a second original light detecting signal in response to the first light beam and the second light beam, wherein an energy conversion efficiency of the light receiver at the first wavelength is different from an energy conversion efficiency of the light receiver at the second wavelength; a signal adjusting circuit, configured to amplify the second original light detecting signal to generate a second light detecting signal; and a driving and determining circuit, configured to determine signal intensities of the first original light detecting signal and the second light detecting signal.
    Type: Application
    Filed: August 22, 2019
    Publication date: August 6, 2020
    Inventors: Meng-Chien Chiang, Cheng-Jeng Chou