Patents by Inventor R. Justin Simpson

R. Justin Simpson 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).

  • Mapping patterns of movement based on the aggregation of spatial information contained in wireless transmissions
    Patent number: 6975939
    Abstract: Time-tagged coordinates from session-unique transmissions of wireless devices are collected routinely and stored for later analysis. From this data, one may derive a sequence of wireless device operation from which attributes may be ascertained. Sequences are accumulated until a dense aggregate pattern (900) is formed over a geographic area. Aggregate data is sorted into ranges representing speed of movement and then converted to pixels representing cells (401) in an aggregate matrix (400). Heavily weighted values (402) are assigned to cells (401) that represent a location within a pre-specified spatial error (100) about a data point (101). Lower values are assigned to cells (401) representing paths (200), or corridors, connecting these better-identified locations. As more transmission sessions (500) are added to the matrix (400), the largest weight values (402) cluster as individual cells (401) representing a most likely path (1001).
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: December 13, 2005
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Daniel L. Edwards, R. Justin Simpson
  • Mapping patterns of movement based on the aggregation of spatial information contained in wireless transmissions
    Publication number: 20030050754
    Abstract: Time-tagged coordinates from session-unique transmissions of wireless devices are collected routinely and stored for later analysis. From this data, one may derive a sequence of wireless device operation from which attributes may be ascertained. Sequences are accumulated until a dense aggregate pattern (900) is formed over a geographic area. Aggregate data is sorted into ranges representing speed of movement and then converted to pixels representing cells (401) in an aggregate matrix (400). Heavily weighted values (402) are assigned to cells (401) that represent a location within a pre-specified spatial error (100) about a data point (101). Lower values are assigned to cells (401) representing paths (200), or corridors, connecting these better-identified locations. As more transmission sessions (500) are added to the matrix (400), the largest weight values (402) cluster as individual cells (401) representing a most likely path (1001).
    Type: Application
    Filed: July 29, 2002
    Publication date: March 13, 2003
    Inventors: Daniel L. Edwards, R. Justin Simpson