Patents by Inventor Mohanan Pisharody

Mohanan Pisharody 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).

  • Locationing using differential phase measurements of IEEE 802.11 preambles
    Patent number: 9137680
    Abstract: A method and apparatus for locationing using differential phase measurements of IEEE 802.11 preambles. A first step includes providing a local clock at the same frequency as the IEEE 802.11 preambles. This step includes synchronizing the local clocks at multiple receivers with a reference clock, for example, using Synchronous Ethernet. A next step includes receiving IEEE 802.11 packets from a transmitter by at least three fixed receivers. A next step includes determining a phase offset between the local clock and any nearest cycle of a preamble in the received packets in each of the receivers. A next step includes locating the transmitter using each of the phase offsets.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: September 15, 2015
    Assignee: Symbol Technologies, LLC
    Inventors: Mohanan Pisharody, John Kramer
  • LOCATIONING USING DIFFERENTIAL PHASE MEASUREMENTS OF IEEE 802.11 PREAMBLES
    Publication number: 20140092759
    Abstract: A method and apparatus for locationing using differential phase measurements of IEEE 802.11 preambles. A first step includes providing a local clock at the same frequency as the IEEE 802.11 preambles. This step includes synchronizing the local clocks at multiple receivers with a reference clock, for example, using Synchronous Ethernet. A next step includes receiving IEEE 802.11 packets from a transmitter by at least three fixed receivers. A next step includes determining a phase offset between the local clock and any nearest cycle of a preamble in the received packets in each of the receivers. A next step includes locating the transmitter using each of the phase offsets.
    Type: Application
    Filed: October 3, 2012
    Publication date: April 3, 2014
    Applicant: Motorola Solutions, Inc.
    Inventors: Mohanan Pisharody, John Kramer