Patents by Inventor Emily McMilin

Emily McMilin 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).

  • Patent number: 10284356
    Abstract: A wireless communication device includes, in part, an analog interference cancellation circuit and a controller. The analog cancellation circuit includes a multitude of delay paths each including a delay element and a variable attenuator. The controller dynamically varies the attenuation level of each of the variable attenuators in accordance with the frequency response characteristic of that attenuator to remove a portion of a self-interference signal present in a signal received by the device. The device measures the frequency response characteristic of the communication channel, used in determining the attenuation levels, via one or more preamble symbols. A second portion of the self-interference signal is removed by the device using a multitude of samples of a transmitted signal and a multitude of samples of a signal to be transmitted.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 7, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dinesh Bharadia, Sachin Katti, Emily McMilin, Mayank Jain, Jung Il Choi, Kannan Srinivasan
  • Publication number: 20180224557
    Abstract: There is provided an apparatus comprising an antenna (105) configured to receive a signal from a global navigation satellite system, wherein the antenna includes a first feed and a second feed; a hybrid coupler (110) including a first hybrid input, a second hybrid input, a first hybrid output, a second hybrid output, and wherein the first hybrid output is shifted in phase by 90 degrees relative to the second hybrid output; a variable phase shifter (150) including a shifter input and a shifter output, hybrid output; and a combiner (155) including a first combiner input, a second combiner input, and a combiner output, wherein the first combiner input is coupled to the shifter output, and the second combiner input is coupled to the second hybrid output, and wherein the combiner output is provided to detection circuitry (197).
    Type: Application
    Filed: September 4, 2015
    Publication date: August 9, 2018
    Applicants: The Board of Trustees of the Leland Stanford Junior University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Emily McMilin, David S. De Lorenzo, Per K. Enge, Dennis M. Akos
  • Publication number: 20170187513
    Abstract: A wireless communication device includes, in part, an analog interference cancellation circuit and a controller. The analog cancellation circuit includes a multitude of delay paths each including a delay element and a variable attenuator. The controller dynamically varies the attenuation level of each of the variable attenuators in accordance with the frequency response characteristic of that attenuator to remove a portion of a self-interference signal present in a signal received by the device. The device measures the frequency response characteristic of the communication channel, used in determining the attenuation levels, via one or more preamble symbols. A second portion of the self-interference signal is removed by the device using a multitude of samples of a transmitted signal and a multitude of samples of a signal to be transmitted.
    Type: Application
    Filed: August 11, 2014
    Publication date: June 29, 2017
    Inventors: Dinesh BHARADIA, Sachin KATTI, Emily McMILIN
  • Publication number: 20170149127
    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
  • Patent number: 9577315
    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: February 21, 2017
    Assignee: Apple Inc.
    Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
  • Publication number: 20140348018
    Abstract: A wireless communication device includes, in part, an analog interference cancellation circuit and a controller. The analog cancellation circuit includes a multitude of delay paths each including a delay element and a variable attenuator. The controller dynamically varies the attenuation level of each of the variable attenuators in accordance with the frequency response characteristic of that attenuator to remove a portion of a self-interference signal present in a signal received by the device. The device measures the frequency response characteristic of the communication channel, used in determining the attenuation levels, via one or more preamble symbols. A second portion of the self-interference signal is removed by the device using a multitude of samples of a transmitted signal and a multitude of samples of a signal to be transmitted.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Dinesh BHARADIA, Sachin KATTI, Emily McMILIN
  • Publication number: 20140292591
    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
  • Patent number: 8766858
    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: July 1, 2014
    Assignee: Apple Inc.
    Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Lijun Zhang
  • Publication number: 20120050114
    Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 1, 2012
    Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Lijun Zhang