Patents by Inventor Marcellus Harper
Marcellus Harper 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: 11824374Abstract: In one example, an apparatus for wireless power transfer may include a resonant section of a wireless power transfer converter, a first switching section having a full-bridge topology, a second switching section including bidirectional switches in a full-bridge topology, and a transformer with N turns having a first side and a second side. The first switching section may include a first leg and a second leg, each having a center point. The resonant section may include a first connection and a second connection. The second switching section may include a first leg and a second leg, each having a center point. A first connection of the first side of the transformer may be connected in series with the second connection of the resonant section. The first connection of the resonant section and a second connection of the first side of the transformer may be connected to the center points of the first switching section, respectively.Type: GrantFiled: August 16, 2022Date of Patent: November 21, 2023Assignee: Wireless Advanced Vehicle Electrification, LLCInventors: Patrice Lethellier, Marcellus Harper
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Publication number: 20230336025Abstract: Described herein are techniques for routing conductive wires in a wireless power transfer pad. Such techniques may comprise routing, for a length of wiring between a power source and an inductive coil, a first conductive wire configured to carry a first current, routing, for a first portion of the length of wiring, a second conductive wire next to the first conductive wire, wherein the second conductive wire is configured to carry a second current having a direction that is substantially opposite that of the first current, and routing, for a second portion of the length of wiring, a portion of the inductive coil next to the first conductive wire, wherein the portion of the inductive coil is configured to carry a third current having a direction that is substantially opposite that of the first current.Type: ApplicationFiled: April 18, 2022Publication date: October 19, 2023Inventors: Marcellus Harper, Adeel Zaheer, Kelly Wardell
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Patent number: 11764613Abstract: A wireless power transfer pad apparatus may include a ferrite structure and four windings adjacent to the ferrite structure. The ferrite structure may include a magnetic pathway. A ferrite pathway between adjacent windings of the four windings may have a thickness and a width to provide a low impedance, unsaturated magnetic pathway for an electromagnetic field generated by the adjacent windings. Other examples may be described and claimed.Type: GrantFiled: August 4, 2022Date of Patent: September 19, 2023Assignee: Wireless Advanced Vehicle Electrification, LLCInventors: Patrice Lethellier, Marcellus Harper
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Publication number: 20220393518Abstract: In one example, an apparatus for wireless power transfer may include a resonant section of a wireless power transfer converter, a first switching section having a full-bridge topology, a second switching section including bidirectional switches in a full-bridge topology, and a transformer with N turns having a first side and a second side. The first switching section may include a first leg and a second leg, each having a center point. The resonant section may include a first connection and a second connection. The second switching section may include a first leg and a second leg, each having a center point. A first connection of the first side of the transformer may be connected in series with the second connection of the resonant section. The first connection of the resonant section and a second connection of the first side of the transformer may be connected to the center points of the first switching section, respectively.Type: ApplicationFiled: August 16, 2022Publication date: December 8, 2022Inventors: PATRICE LETHELLIER, MARCELLUS HARPER
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Publication number: 20220376554Abstract: A wireless power transfer pad apparatus may include a ferrite structure and four windings adjacent to the ferrite structure. The ferrite structure may include a magnetic pathway. A ferrite pathway between adjacent windings of the four windings may have a thickness and a width to provide a low impedance, unsaturated magnetic pathway for an electromagnetic field generated by the adjacent windings. Other examples may be described and claimed.Type: ApplicationFiled: August 4, 2022Publication date: November 24, 2022Inventors: Patrice Lethellier, Marcellus Harper
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Patent number: 11437855Abstract: A wireless power transfer (“WPT”) pad apparatus includes a first winding adjacent to the ferrite structure, where the first winding is arranged in a spiral-type pattern, and a second winding adjacent to the ferrite structure. The second winding is arranged in a spiral-type pattern and the second winding wound interleaved to the first winding. The first and second windings are arranged to compensate for a difference in length between the first winding and the second winding for portions of the first and second windings wound adjacent to each other.Type: GrantFiled: September 28, 2020Date of Patent: September 6, 2022Assignee: WIRELESS ADVANCED VEHICLE ELECTRIFICATION, LLCInventors: Patrice Lethellier, Marcellus Harper
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Patent number: 11437854Abstract: An apparatus for secondary wireless power transfer includes a WPT secondary pad that receives power wirelessly from a WPT primary pad. The secondary pad includes a first winding and a second winding in parallel with the first winding. The apparatus includes a first rectification section that receives power from the first winding and a second rectification section that receives power from the second winding. The first rectification section is connected in parallel with the second rectification section. The parallel connection between the first and second rectification sections form output terminals. The apparatus includes a switch connecting the first winding in series with the second winding and a controller that intermittently opens and closes the switch to control voltage and current at the output terminals.Type: GrantFiled: February 12, 2019Date of Patent: September 6, 2022Assignee: Wireless Advanced Vehicle Electrification, LLCInventors: Patrice Lethellier, Marcellus Harper
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Publication number: 20220045504Abstract: Systems, devices and methods for sensing moisture within an electronic device are disclosed. A device may include a housing and a display defining and exterior of an electronic device and an interior of the electronic device. Further, the device may include an integrated circuit (IC) within the electronic device and comprising a control element. The device may also include a moisture sensor such as an inductive sensor, a capacitance sensor, or both.Type: ApplicationFiled: October 20, 2021Publication date: February 10, 2022Inventors: Marcellus Harper, Jason Maynard, Blake Stevens, Max Sorenson
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Patent number: 10978914Abstract: A vault apparatus for wireless power transfer includes a vault comprising an opening for a wireless power transfer (“WPT”) pad. The opening is located on a top of the vault. The vault apparatus includes a junction box formed into the vault. The junction box includes an opening oriented toward the top of the vault. The vault apparatus includes a sealing ring that maintains a WPT pad fixed in the vault where a portion of the sealing ring covers the junction box.Type: GrantFiled: February 15, 2019Date of Patent: April 13, 2021Assignee: Wireless Advanced Vehicle Electrification, Inc.Inventors: Patrice Lethellier, Ryan Calder, Evans Griego, Steve Ball, Marcellus Harper
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Publication number: 20210013746Abstract: A wireless power transfer (“WPT”) pad apparatus includes a first winding adjacent to the ferrite structure, where the first winding is arranged in a spiral-type pattern, and a second winding adjacent to the ferrite structure. The second winding is arranged in a spiral-type pattern and the second winding wound interleaved to the first winding. The first and second windings are arranged to compensate for a difference in length between the first winding and the second winding for portions of the first and second windings wound adjacent to each other.Type: ApplicationFiled: September 28, 2020Publication date: January 14, 2021Inventors: Patrice Lethellier, Marcellus Harper
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Patent number: 10826329Abstract: A wireless power transfer (“WPT”) pad apparatus includes a ferrite structure and four windings adjacent to the ferrite structure. A horizontal surface of the ferrite structure is adjacent to each of the four windings and each of the four windings are wound in a horizontal pattern that is planar to the horizontal surface. The four windings are arranged in a two-by-two square pattern in a north-south-north-south polarity arrangement.Type: GrantFiled: December 24, 2018Date of Patent: November 3, 2020Assignee: Wireless Advanced Vehicle Electrification, Inc.Inventors: Patrice Lethellier, Marcellus Harper
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Publication number: 20200153234Abstract: Systems, devices and methods for sensing moisture within an electronic device are disclosed. A device may include a housing and a display defining and exterior of an electronic device and an interior of the electronic device. Further, the device may include an integrated circuit (IC) within the electronic device and comprising a control element. The device may also include a moisture sensor such as an inductive sensor, a capacitance sensor, or both.Type: ApplicationFiled: January 20, 2020Publication date: May 14, 2020Inventors: Marcellus Harper, Jason Maynard, Blake Stevens, Max Sorenson
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Patent number: 10559405Abstract: A transmission cable to reduce radiated electromagnetic radiation includes a first conductor with current flowing in a positive direction, a second conductor with a current flowing in a negative direction, where the negative direction is opposite the positive direction and the current in the first conductor equal to the current in the second conductor, a third conductor with current flowing in the positive direction and a fourth conductor with a current flowing in the negative direction. The current in the third conductor is equal to the current in the fourth conductor. The first conductor, the second conductor, the third conductor, and the fourth conductor are arranged in a symmetrical square pattern and the conductors are each on a corner of the square pattern. The first conductor is opposite the third conductor and adjacent to the second conductor and the fourth conductor.Type: GrantFiled: January 31, 2019Date of Patent: February 11, 2020Assignee: Wireless Advanced Vehicle Electrification, Inc.Inventors: Patrice Lethellier, Ryan Calder, Marcellus Harper
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Patent number: 10541529Abstract: Systems, devices and methods for sensing moisture within an electronic device are disclosed. A device may include a housing and a display defining and exterior of an electronic device and an interior of the electronic device. Further, the device may include an integrated circuit (IC) within the electronic device and comprising a control element. The device may also include a moisture sensor such as an inductive sensor, a capacitance sensor, or both. The moisture sensor, which may be part of the IC, together with the control element may sense moisture within the electronic device.Type: GrantFiled: September 29, 2015Date of Patent: January 21, 2020Assignee: HZO, Inc.Inventors: Marcellus Harper, Jason Maynard, Blake Stevens, Max Sorenson
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Publication number: 20190252921Abstract: An apparatus for secondary wireless power transfer includes a WPT secondary pad that receives power wirelessly from a WPT primary pad. The secondary pad includes a first winding and a second winding in parallel with the first winding. The apparatus includes a first rectification section that receives power from the first winding and a second rectification section that receives power from the second winding. The first rectification section is connected in parallel with the second rectification section. The parallel connection between the first and second rectification sections form output terminals. The apparatus includes a switch connecting the first winding in series with the second winding and a controller that intermittently opens and closes the switch to control voltage and current at the output terminals.Type: ApplicationFiled: February 12, 2019Publication date: August 15, 2019Inventors: PATRICE LETHELLIER, MARCELLUS HARPER
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Publication number: 20190252922Abstract: A vault apparatus for wireless power transfer includes a vault comprising an opening for a wireless power transfer (“WPT”) pad. The opening is located on a top of the vault. The vault apparatus includes a junction box formed into the vault. The junction box includes an opening oriented toward the top of the vault. The vault apparatus includes a sealing ring that maintains a WPT pad fixed in the vault where a portion of the sealing ring covers the junction box.Type: ApplicationFiled: February 15, 2019Publication date: August 15, 2019Inventors: PATRICE LETHELLIER, RYAN CALDER, EVANS GRIEGO, STEVE BALL, MARCELLUS HARPER
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Patent number: 10381883Abstract: An apparatus includes a ping detection module that detects a ping signal transmitted from a secondary pad to a primary pad. The secondary pad is located on a mobile device and the primary pad located on a stationary WPT device, where the stationary WPT device transmits power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation. The ping signal includes a mobile device ID and the mobile device ID is unique to the mobile device. The apparatus includes an ID detection module that detects the mobile device ID from the ping signal received at the primary pad and a pairing module that pairs the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device.Type: GrantFiled: August 29, 2016Date of Patent: August 13, 2019Assignee: WIRELESS ADVANCED VEHICLE ELECTRIFICATION, INC.Inventors: Marcellus Harper, Patrice Lethellier, Hunter Wu
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Publication number: 20190237219Abstract: A transmission cable to reduce radiated electromagnetic radiation includes a first conductor with current flowing in a positive direction, a second conductor with a current flowing in a negative direction, where the negative direction is opposite the positive direction and the current in the first conductor equal to the current in the second conductor, a third conductor with current flowing in the positive direction and a fourth conductor with a current flowing in the negative direction. The current in the third conductor is equal to the current in the fourth conductor. The first conductor, the second conductor, the third conductor, and the fourth conductor are arranged in a symmetrical square pattern and the conductors are each on a corner of the square pattern. The first conductor is opposite the third conductor and adjacent to the second conductor and the fourth conductor.Type: ApplicationFiled: January 31, 2019Publication date: August 1, 2019Inventors: PATRICE LETHELLIER, RYAN CALDER, MARCELLUS HARPER
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Publication number: 20190199134Abstract: A wireless power transfer (“WPT”) pad apparatus includes a ferrite structure and four windings adjacent to the ferrite structure. A horizontal surface of the ferrite structure is adjacent to each of the four windings and each of the four windings are wound in a horizontal pattern that is planar to the horizontal surface. The four windings are arranged in a two-by-two square pattern in a north-south-north-south polarity arrangement.Type: ApplicationFiled: December 24, 2018Publication date: June 27, 2019Inventors: Patrice Lethellier, Marcellus Harper
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Patent number: RE49621Abstract: An apparatus includes a ping detection module that detects a ping signal transmitted from a secondary pad to a primary pad. The secondary pad is located on a mobile device and the primary pad located on a stationary WPT device, where the stationary WPT device transmits power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation. The ping signal includes a mobile device ID and the mobile device ID is unique to the mobile device. The apparatus includes an ID detection module that detects the mobile device ID from the ping signal received at the primary pad and a pairing module that pairs the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device.Type: GrantFiled: August 13, 2021Date of Patent: August 22, 2023Assignee: Wireless Advanced Vehicle Electrification, LLCInventors: Marcellus Harper, Patrice Lethellier, Hunter Wu