The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2017
Filed:
Nov. 13, 2013
Elwha Llc, Bellevue, WA (US);
Tom Driscoll, San Diego, CA (US);
Joseph R. Guerci, Arlington, VA (US);
Russell J. Hannigan, Sammamish, WA (US);
Roderick A. Hyde, Redmond, WA (US);
Muriel Y. Ishikawa, Livermore, CA (US);
Jordin T. Kare, Seattle, WA (US);
Nathan P. Myhrvold, Medina, WA (US);
David R. Smith, Durham, NC (US);
Clarence T. Tegreene, Mercer Island, WA (US);
Yaroslav A. Urzhumov, Bellevue, WA (US);
Charles Whitmer, North Bend, WA (US);
Lowell L. Wood, Jr., Bellevue, WA (US);
Victoria Y. H. Wood, Livermore, CA (US);
Abstract
Described embodiments include a system and method. A system includes a first and second digital imaging devices. Each digital imaging device is configured to capture digital images of a surface traveled by a vehicle. A digital image correlator is configured to (i) correlate a first digital image of the surface captured by a first digital imaging device at a first time and a second digital image of the surface captured by a second digital imaging device at a subsequent second time, and (ii) determine a correlation vector. The first and second imaging devices are separated by a known distance. A kinematics circuit is configured to determine in response to the correlation vector an incremental translation and rotation of the vehicle. The system includes a navigation circuit configured to combine at least two instances of the incremental translation and rotation into data indicative of travel by the vehicle.