Patents by Inventor Pei-Jen Liao

Pei-Jen Liao 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: 20240007598
    Abstract: A projection system and a control method thereof are provided. The projection system includes a projection module, a mmWave sensor, and a control circuit. The projection module projects an image beam to a projection surface. The mmWave sensor is configured to sense an object entering a sensing range and obtain a sensing result. The control circuit is coupled to the projection module and the mmWave sensor, and the control circuit controls the projection module to provide the image beam according to the sensing result of the mmWave sensor.
    Type: Application
    Filed: June 7, 2023
    Publication date: January 4, 2024
    Applicant: Coretronic Corporation
    Inventors: Pei-Jen Liao, Chih En Wang, Hsin-Chang Huang, Chien-Yi Yang
  • Publication number: 20230300302
    Abstract: A projection apparatus, an illumination apparatus thereof, and a light source driving method thereof are provided. A control module converts a bit control signal into first light source timing signals, converts the first light source timing signals into second light source timing signals according to a lookup table, generates a driving current corresponding to each light source according to the lookup table, outputs second light source driving signals corresponding to the light sources according to the second light source timing signals. The lookup table includes a driving current ratio corresponding to the light sources. A driving module drives the light sources according to the second light source driving signals and the driving current for the light sources to have overlapping light-emitting timings.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Applicant: Coretronic Corporation
    Inventors: Hsin-Chang Huang, Chien-Yi Yang, Pei-Jen Liao, Yun-Shih Chen, Wei-Chih Su