Patents by Inventor Lun Kai Chang

Lun Kai Chang 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).

  • Voltage converting device
    Patent number: 9400516
    Abstract: A voltage converting device includes first and second stage circuits for converting a differential voltage to an output signal that has a magnitude smaller than the differential voltage. The second stage circuit includes input transistors for receiving voltages from the first stage circuit, output transistors for outputting the output signal, and a clamp module to clamp voltages at the input transistors of the second stage circuit.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: July 26, 2016
    Assignee: ILI TECHNOLOGY CORPORATION
    Inventors: Wei-Chung Cheng, Shih-Hsin Hsu, Lun-Kai Chang
  • VOLTAGE CONVERTING DEVICE
    Publication number: 20140306684
    Abstract: A voltage converting device includes first and second stage circuits for converting a differential voltage to an output signal that has a magnitude smaller than the differential voltage. The second stage circuit includes input transistors for receiving voltages from the first stage circuit, output transistors for outputting the output signal, and a clamp module to clamp voltages at the input transistors of the second stage circuit.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 16, 2014
    Applicant: ILI TECHNOLOGY CORPORATION
    Inventors: Wei-Chung Cheng, Shih-Hsin Hsu, Lun-Kai Chang
  • DISTRIBUTED OPTICAL CHEMICAL SENSOR
    Publication number: 20120081696
    Abstract: The invention relates to a sensor system comprising a waveguide, which waveguide comprises a grating in at least a part of the waveguide, which waveguide further comprises a coating, the coating comprising a polymer, which polymer comprises a chain, in which chain are present an aromatic group and a chemical group selected from the group of sulfonyl groups, carbonyl groups, carbonate groups, fluorocarbon groups, siloxane groups, pyridine groups and amide groups.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 5, 2012
    Applicant: Nederlandse Organisatie voor Toegepastnatuurwetenschapelijk onderzoek TNO
    Inventors: Arjen Boersma, Theodorus Henricus Cornelus Panken, Lun Kai Chang