Patents by Inventor Nandita Venugopal

Nandita Venugopal 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: 20240004500
    Abstract: Touch sensor panels/screens can include negative temperature coefficient materials in the stack-up and routing traces with expanded areas to reduce thermal drift and minimize the detection of false touches. In some examples, the touch sensor panels/screens can include a plurality of touch electrodes in a first layer. In some examples, the sensor panels/screens can include one or more dielectric materials in a second layer, the one or more dielectric materials including a negative temperature coefficient material. In some examples, the touch sensor panels/screens can include a plurality of routing traces in a third layer, the plurality of routing traces routing the plurality of touch electrodes to a touch controller chip.
    Type: Application
    Filed: May 31, 2023
    Publication date: January 4, 2024
    Inventors: Santosh POKHREL, Nandita VENUGOPAL, Supratik DATTA
  • Publication number: 20220253162
    Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: Blake R. MARSHALL, Reza Nasiri Mahalati, Wing Kong Low, Izhar Bentov, Ashwin Kumar Asoka Kumar Shenoi, Henry N. Tsao, Supratik Datta, Wesley W. Zuber, Nandita Venugopal, Karan S. Jain
  • Patent number: 11340716
    Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 24, 2022
    Assignee: APPLE INC.
    Inventors: Blake R. Marshall, Reza Nasiri Mahalati, Wing Kong Low, Izhar Bentov, Ashwin Kumar Asoka Kumar Shenoi, Henry N. Tsao, Supratik Datta, Wesley W. Zuber, Nandita Venugopal, Karan S. Jain
  • Patent number: 11256362
    Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: February 22, 2022
    Assignee: Apple Inc.
    Inventors: Karan Jain, Nandita Venugopal
  • Publication number: 20200401265
    Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Inventors: Karan JAIN, Nandita VENUGOPAL
  • Patent number: 10788936
    Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: September 29, 2020
    Assignee: Apple Inc.
    Inventors: Karan Jain, Nandita Venugopal
  • Patent number: 10594160
    Abstract: A wireless power system includes an electrically-balanced inductor in a transmitter device and an electrically-balanced inductor in a receiver device. The electrically-balanced inductors can be formed by introducing crossovers between radially-adjacent portions of two separate turns of each inductor. The crossovers balance the electric field generated by the transmitter device when transferring power to the receiver device.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 17, 2020
    Assignee: APPLE INC.
    Inventors: Karan S. Jain, Supratik Datta, Nandita Venugopal, Asif Hussain
  • Publication number: 20200012358
    Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 9, 2020
    Inventors: Blake R. MARSHALL, Reza NASIRI MAHALATI, Wing Kong LOW, Izhar BENTOV, Ashwin Kumar ASOKA KUMAR SHENOI, Henry N. TSAO, Supratik DATTA, Wesley W. ZUBER, Nandita VENUGOPAL, Karan S. JAIN
  • Publication number: 20180198318
    Abstract: A wireless power system includes an electrically-balanced inductor in a transmitter device and an electrically-balanced inductor in a receiver device. The electrically-balanced inductors can be formed by introducing crossovers between radially-adjacent portions of two separate turns of each inductor. The crossovers balance the electric field generated by the transmitter device when transferring power to the receiver device.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 12, 2018
    Inventors: Karan S. Jain, Supratik Datta, Nandita Venugopal, Asif Hussain