Patents by Inventor KUN-HUA LEE

KUN-HUA LEE 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: 20240154629
    Abstract: A 24 GHz band-pass filter includes a step impedance resonator, a first U-shape feeding portion, a second U-shape feeding portion, short-circuit stubs and open-circuit stubs. The step impedance resonator includes a first main portion, a second main portion, and a connection portion for connecting the main portions to each other. The first main portion and the second main portion are electrically connected to a first signal input/output port and a second signal input/output port. The first U-shape feeding portion is electrically connected between the first main portion and the first signal input/output port. The second U-shape feeding portion is electrically connected between the second main portion and the second signal input/output port. The short-circuit stubs are electrically connected to coupling segments of the step impedance resonator. The open-circuit stubs are electrically connected to the first U-shape feeding portion and the second U-shape feeding portion.
    Type: Application
    Filed: November 1, 2023
    Publication date: May 9, 2024
    Inventors: Kun Yen TU, Meng-Hua TSAI, Wei Ting LEE, Sin-Siang WANG
  • Patent number: 11916071
    Abstract: A device includes first and second semiconductor fins, first, second, third and fourth fin sidewall spacers, and first and second epitaxy structures. The first and second fin sidewall spacers are respectively on opposite sides of the first semiconductor fin. The third and fourth fin sidewall spacers are respectively on opposite sides of the second semiconductor fin. The first and third fin sidewall spacers are between the first and second semiconductor fins and have smaller heights than the second and fourth fin sidewall spacers. The first and second epitaxy structures are respectively on the first and second semiconductor fins and merged together.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: February 27, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Jing Lee, Kun-Mu Li, Ming-Hua Yu, Tsz-Mei Kwok
  • Patent number: 11916313
    Abstract: An appressed antenna includes an antenna housing and a metal shell. The antenna housing comprising a housing and a planar antenna, where the planar antenna is bent with one part folded onto the inner surface of the housing and other part pressed onto the outer surface of the housing. The antenna housing is sleeve fitted to the metal shell with a gap between for the planar antenna to radiate. In this all-metal environment, the position of the antenna is close to the gap opening will increase radiation efficiency. By having at least a branch at the tail end of the appressed antenna, the appressed antenna can have a good return loss and antenna gain.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: February 27, 2024
    Assignee: QuantumZ Inc.
    Inventors: Kun-Yen Tu, Meng-Hua Tsai, Wei-Ting Lee, Sin-Siang Wang
  • Patent number: 11837138
    Abstract: A control circuit for a low-temperature poly-silicon array controls the low-temperature poly-silicon array including M rows×N columns of pixel units. The control circuit includes N operational amplifiers, a comparison unit, and a pixel input switch control unit. The comparison unit determines pixel values of N red subpixels, N green subpixels, and N blue subpixels in at least one row of pixel units of the M rows of pixel units are the same as each other. The pixel input switch control unit controls, when the pixel values of the N red subpixels, the N green subpixels, and the N blue subpixels in the at least one row of pixel units of the M rows of pixel units are the same as each other, the N red pixel input switches, the N green pixel input switches, and the N blue pixel input switches to be all turned on.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: December 5, 2023
    Assignee: OMNIVISION TDDI ONTARIO LIMITED PARTNERSHIP
    Inventor: Kun-Hua Lee
  • Publication number: 20220415237
    Abstract: A control circuit for a low-temperature poly-silicon array controls the low-temperature poly-silicon array including M rows×N columns of pixel units. The control circuit includes N operational amplifiers, a comparison unit, and a pixel input switch control unit. The comparison unit determines pixel values of N red subpixels, N green subpixels, and N blue subpixels in at least one row of pixel units of the M rows of pixel units are the same as each other. The pixel input switch control unit controls, when the pixel values of the N red subpixels, the N green subpixels, and the N blue subpixels in the at least one row of pixel units of the M rows of pixel units are the same as each other, the N red pixel input switches, the N green pixel input switches, and the N blue pixel input switches to be all turned on.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventor: KUN-HUA LEE