Patents by Inventor Yun X. MA

Yun X. MA 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).

  • Wearable electronic device with fluid-based pressure sensing
    Patent number: 11561144
    Abstract: An electronic device, such as a smart watch, incorporating a fluid-based pressure-sensing device is disclosed. The fluid-based pressure-sensing device includes an enclosure, a pressure sensor, a diaphragm and a sensing medium. The enclosure includes an opening and the pressure sensor is disposed inside the enclosure. The diaphragm hermetically seals the opening, and the sensing medium transfers a pressure exerted on the diaphragm to the pressure sensor. The sensing medium can be liquid oil filling a space of the enclosure, and the diaphragm is a polymer material. The pressure-sensing device may sense an environmental pressure, which may be used by the electronic device to modify its operations, change information that is displayed, and so on.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: January 24, 2023
    Assignee: APPLE INC.
    Inventors: Caleb C. Han, Brad G. Boozer, Mark G. Walsh, William S. Lee, Tongbi T. Jiang, Jun Zhai, Yun X. Ma, James G. Horiuchi, David MacNeil, Ashwin Balasubramanian, Wei Chen, Jie-Hua Zhao
  • Water proofing and water detection schemes for MEMS-based environmental sensing devices
    Patent number: 11305984
    Abstract: A waterproofed environmental sensing device with water detection provisions includes an environmental sensor to sense one or more environmental properties. The device further includes an electronic integrated circuit implemented on a substrate and coupled to the environmental sensor via a wire bonding. An air-permeable cap structure is formed over the environmental sensor, and a protective layer is formed over the wire bonding to protect the wire bonding against damage.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: April 19, 2022
    Assignee: Apple Inc.
    Inventors: Krishna Prasad Vummidi Murali, Kuolung Lei, Richard Yeh, Yun X. Ma
  • WATER PROOFING AND WATER DETECTION SCHEMES FOR MEMS-BASED ENVIRONMENTAL SENSING DEVICES
    Publication number: 20200223686
    Abstract: A waterproofed environmental sensing device with water detection provisions includes an environmental sensor to sense one or more environmental properties. The device further includes an electronic integrated circuit implemented on a substrate and coupled to the environmental sensor via a wire bonding. An air-permeable cap structure is formed over the environmental sensor, and a protective layer is formed over the wire bonding to protect the wire bonding against damage.
    Type: Application
    Filed: March 26, 2020
    Publication date: July 16, 2020
    Inventors: Krishna Prasad VUMMIDI MURALI, Kuolung LEI, Richard YEH, Yun X. MA
  • Water proofing and water detection schemes for MEMS-based environmental sensing devices
    Patent number: 10640367
    Abstract: A waterproofed environmental sensing device with water detection provisions includes an environmental sensor to sense one or more environmental properties. The device further includes an electronic integrated circuit implemented on a substrate and coupled to the environmental sensor via a wire bonding. An air-permeable cap structure is formed over the environmental sensor, and a protective layer is formed over the wire bonding to protect the wire bonding against damage.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Krishna Prasad Vummidi Murali, Kuolung Lei, Richard Yeh, Yun X. Ma
  • WATER PROOFING AND WATER DETECTION SCHEMES FOR MEMS-BASED ENVIRONMENTAL SENSING DEVICES
    Publication number: 20190100428
    Abstract: A waterproofed environmental sensing device with water detection provisions includes an environmental sensor to sense one or more environmental properties. The device further includes an electronic integrated circuit implemented on a substrate and coupled to the environmental sensor via a wire bonding. An air-permeable cap structure is formed over the environmental sensor, and a protective layer is formed over the wire bonding to protect the wire bonding against damage.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Krishna Prasad VUMMIDI MURALI, Kuolung LEI, Richard YEH, Yun X. MA