Patents by Inventor Michael K. McFARLAND

Michael K. McFARLAND 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).

  • System and method for low loss wireless power transmission
    Patent number: 9270342
    Abstract: Systems and methods for low loss wireless power transmission are described herein. In one aspect, a transmission coil for transmitting wireless power comprises a first and second spiral coil. Each spiral coil comprises a plurality of turns. A center of the first spiral coil to an outermost turn of the first spiral coil defines a first cross section, and a center of the second spiral coil to an outermost turn of the second spiral coil defines a second cross section. Portions of the first spiral coil along the first cross section and the second spiral coil along the second cross section have a mutual inductance with respect to a receive coil greater than 65% of a maximum mutual inductance along the first and second cross sections. The second spiral coil is counter-wound relative to the first spiral coil.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 23, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sreenivas Kasturi, Ashish Gupta, Michael K. McFarland
  • SYSTEM AND METHOD FOR LOW LOSS WIRELESS POWER TRANSMISSION
    Publication number: 20130154383
    Abstract: Systems and methods for low loss wireless power transmission are described herein. In one aspect, a transmission coil for transmitting wireless power comprises a first and second spiral coil. Each spiral coil comprises a plurality of turns. A center of the first spiral coil to an outermost turn of the first spiral coil defines a first cross section, and a center of the second spiral coil to an outermost turn of the second spiral coil defines a second cross section. Portions of the first spiral coil along the first cross section and the second spiral coil along the second cross section have a mutual inductance with respect to a receive coil greater than 65% of a maximum mutual inductance along the first and second cross sections. The second spiral coil is counter-wound relative to the first spiral coil.
    Type: Application
    Filed: September 12, 2012
    Publication date: June 20, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Sreenivas KASTURI, Ashish GUPTA, Michael K. McFARLAND