Patents by Inventor Kian-Fu WONG

Kian-Fu WONG 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).

  • Light sensor circuit
    Patent number: 11509322
    Abstract: A light sensor circuit, which comprising a photodiode and a voltage follower. By setting the voltage follower to reduce the influence from the junction capacitance of the photodiode, a required time of a repeat integration module will not be influenced by the photodiode to efficiently keep the performance and the accuracy of the analog to digital converting device when the light sensor circuit is used to the analog to digital converting device in repeat operation.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 22, 2022
    Assignee: Sensortek Technology Corp.
    Inventors: Jer-Hau Hsu, Ming-Huang Liu, Kian-Fu Wong
  • LIGHT SENSOR CIRCUIT
    Publication number: 20210250035
    Abstract: A light sensor circuit, which comprising a photodiode and a voltage follower. By setting the voltage follower to reduce the influence from the junction capacitance of the photodiode, a required time of a repeat integration module will not be influenced by the photodiode to efficiently keep the performance and the accuracy of the analog to digital converting device when the light sensor circuit is used to the analog to digital converting device in repeat operation.
    Type: Application
    Filed: September 8, 2020
    Publication date: August 12, 2021
    Inventors: JER-HAU HSU, MING-HUANG LIU, KIAN-FU WONG
  • Operation method with reducing quantization error and circuit thereof
    Patent number: 10985770
    Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: April 20, 2021
    Assignee: Sensortek Technology Corp.
    Inventors: Jer-Hau Hsu, Tsung-Han Wu, Kian-Fu Wong, Meng-Yong Lin
  • OPERATION METHOD WITH REDUCING QUANTIZATION ERROR AND CIRCUIT THEREOF
    Publication number: 20200389177
    Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.
    Type: Application
    Filed: March 16, 2020
    Publication date: December 10, 2020
    Inventors: Jer-Hau HSU, Tsung-Han WU, Kian-Fu WONG, Meng-Yong LIN