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).
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Patent number: 10690776Abstract: 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: GrantFiled: September 4, 2015Date of Patent: June 23, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Emily McMilin, David S. De Lorenzo, Per K. Enge, Dennis M. Akos
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Patent number: 10284356Abstract: 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: GrantFiled: August 11, 2014Date of Patent: May 7, 2019Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Dinesh Bharadia, Sachin Katti, Emily McMilin, Mayank Jain, Jung Il Choi, Kannan Srinivasan
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Publication number: 20180224557Abstract: 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: ApplicationFiled: September 4, 2015Publication date: August 9, 2018Applicants: The Board of Trustees of the Leland Stanford Junior University, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Emily McMilin, David S. De Lorenzo, Per K. Enge, Dennis M. Akos
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Publication number: 20170187513Abstract: 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: ApplicationFiled: August 11, 2014Publication date: June 29, 2017Inventors: Dinesh BHARADIA, Sachin KATTI, Emily McMILIN
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Publication number: 20170149127Abstract: 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: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
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Patent number: 9577315Abstract: 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: GrantFiled: June 16, 2014Date of Patent: February 21, 2017Assignee: Apple Inc.Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
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Publication number: 20140348018Abstract: 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: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventors: Dinesh BHARADIA, Sachin KATTI, Emily McMILIN
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Publication number: 20140292591Abstract: 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: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Li-jun Zhang
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Patent number: 8766858Abstract: 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: GrantFiled: August 27, 2010Date of Patent: July 1, 2014Assignee: Apple Inc.Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Lijun Zhang
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Publication number: 20120050114Abstract: 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: ApplicationFiled: August 27, 2010Publication date: March 1, 2012Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily McMilin, Lijun Zhang