Patents by Inventor Ville Lehtisalo

Ville Lehtisalo 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).

  • Tunable circuit including integrated filter circuit coupled to variable capacitance, and related integrated circuit (IC) packages and fabrication methods
    Patent number: 11770115
    Abstract: An exemplary tunable circuit includes an inductor coupled to a node and a first capacitor coupled to the node. The tunable circuit also includes a variable capacitor coupled to the node, such that a total capacitance of the tunable circuit depends on a fixed capacitance of the first capacitor and a variable capacitance of the variable capacitor. In an example, the inductor and the first capacitor are both included in a passive device and the variable capacitor is in a semiconductor device. The variable capacitor allows the total capacitance to be modified for the purpose of, for example, calibrating the capacitance to account for manufacturing variations, and/or adjusting to a frequency range of operation used by wireless devices in a region of the world. The first capacitor may be a higher quality capacitor providing a larger portion of the total capacitance than the variable capacitor.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: September 26, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Changhan Hobie Yun, Hannu Laurila, Ville Lehtisalo, Ville Herman Brunou, Daniel Daeik Kim, Paragkumar Ajaybhai Thadesar, Nosun Park, Wei Cheng
  • TUNABLE CIRCUIT INCLUDING INTEGRATED FILTER CIRCUIT COUPLED TO VARIABLE CAPACITANCE, AND RELATED INTEGRATED CIRCUIT (IC) PACKAGES AND FABRICATION METHODS
    Publication number: 20220123735
    Abstract: An exemplary tunable circuit includes an inductor coupled to a node and a first capacitor coupled to the node. The tunable circuit also includes a variable capacitor coupled to the node, such that a total capacitance of the tunable circuit depends on a fixed capacitance of the first capacitor and a variable capacitance of the variable capacitor. In an example, the inductor and the first capacitor are both included in a passive device and the variable capacitor is in a semiconductor device. The variable capacitor allows the total capacitance to be modified for the purpose of, for example, calibrating the capacitance to account for manufacturing variations, and/or adjusting to a frequency range of operation used by wireless devices in a region of the world. The first capacitor may be a higher quality capacitor providing a larger portion of the total capacitance than the variable capacitor.
    Type: Application
    Filed: April 20, 2021
    Publication date: April 21, 2022
    Inventors: Changhan Hobie Yun, Hannu Laurila, Ville Lehtisalo, Ville Herman Brunou, Daniel Daeik Kim, Paragkumar Ajaybhai Thadesar, Nosun Park, Wei Cheng