Patents by Inventor James A. Christopher

James A. Christopher 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).

  • Method and apparatus for determining a change in position of a location marker
    Patent number: 9541630
    Abstract: The disclosure is directed to determining a change in position of a location marker. In an aspect, it is determined whether the location marker is in a motion state or a static state using sensors integrated into the location marker, in response to the determining, one or more reachable nodes are discovered, and distance measurements are calculated from the location marker to each of the one or more reachable nodes.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: January 10, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Craig M. Brown, Michael W. Paddon, James A. Christopher, Anthony D. Moriarty
  • METHOD AND APPARATUS FOR DETERMINING A CHANGE IN POSITION OF A LOCATION MARKER
    Publication number: 20140235263
    Abstract: The disclosure is directed to determining a change in position of a location marker. In an aspect, it is determined whether the location marker is in a motion state or a static state using sensors integrated into the location marker, in response to the determining, one or more reachable nodes are discovered, and distance measurements are calculated from the location marker to each of the one or more reachable nodes.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Craig M. BROWN, Michael W. Paddon, James A. Christopher, Anthony D. Moriarty