Patents by Inventor Muan Sian NG

Muan Sian NG 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).

  • ELECTRONIC DEVICE CONTROLLING LIGHT SOURCES ACCORDING TO OPTICAL VARIATION
    Publication number: 20240032756
    Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; an optical sensor, configured to sense optical data generated according to reflected light of the second light or according to reflected light of the first light; and a control circuit, configured to analyze optical information of the optical data. If the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit controls the first light source to be non-activated and the second light source to be activated.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: Muan Sian Ng, Wan Piang Lim, Hui-Hsuan Chen
  • Auto clean machine, cliff determining method and surface type determining method
    Patent number: 11819184
    Abstract: An auto clean machine, comprising: a chassis; a first light source, configured to emit first light; a second light source, configured to emit second light; an optical sensor, configured to sense optical data generated according to reflected light of the second light or according to reflected light of the first light; and a control circuit, configured to analyze optical information of the optical data; wherein if the first light source is activated, the second light source is de-activated and the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit changes the first light source to be non-activated and the second light source to be activated.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: November 21, 2023
    Assignee: PixArt Imaging Inc.
    Inventors: Muan Sian Ng, Wan Piang Lim, Hui-Hsuan Chen
  • AUTO CLEAN MACHINE, CLIFF DETERMINING METHOD AND SURFACE TYPE DETERMINING METHOD
    Publication number: 20230044840
    Abstract: An auto clean machine, comprising: a chassis; a first light source, configured to emit first light; a second light source, configured to emit second light; an optical sensor, configured to sense optical data generated according to reflected light of the second light or according to reflected light of the first light; and a control circuit, configured to analyze optical information of the optical data; wherein if the first light source is activated, the second light source is de-activated and the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit changes the first light source to be non-activated and the second light source to be activated.
    Type: Application
    Filed: October 21, 2022
    Publication date: February 9, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: Muan Sian NG, Wan Piang LIM, Hui-Hsuan Chen
  • Auto clean machine, cliff determining method and surface type determining method
    Patent number: 11510539
    Abstract: An auto clean machine comprising: a chassis; an internal light source, located inside the chassis, for emitting internal light; an external light source, located outside the chassis, for emitting external light; an optical sensor, configured to sense optical data generated according to the external light or according to the internal light; and a control circuit, configured to analyze optical information of the optical data. If the internal light source is activated, the external light source is de-activated and the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit changes the internal light source to be non-activated and the external light source to be activated.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 29, 2022
    Assignee: PixArt Imaging Inc.
    Inventors: Muan Sian Ng, Wan Piang Lim, Hui-Hsuan Chen
  • AUTO CLEAN MACHINE, CLIFF DETERMINING METHOD AND SURFACE TYPE DETERMINING METHOD
    Publication number: 20190274505
    Abstract: An auto clean machine comprising: a chassis; an internal light source, located inside the chassis, for emitting internal light; an external light source, located outside the chassis, for emitting external light; an optical sensor, configured to sense optical data generated according to the external light or according to the internal light; and a control circuit, configured to analyze optical information of the optical data. If the internal light source is activated, the external light source is de-activated and the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit changes the internal light source to be non-activated and the external light source to be activated.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Muan Sian NG, Wan Piang Lim, Hui-Hsuan Chen