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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.:

US 9677897 B1

PDFFull Text
Expired
Date of Patent:
Jun. 13, 2017

Filed:

Nov. 13, 2013

Dead reckoning system for vehicles

Applicant:

Elwha Llc, Bellevue, WA (US);

Inventors:

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);

Assignee:

Elwha LLC;

Attorney:
Primary Examiner:

Thomas Tarcza

Assistant Examiner:

Garrett Evans

Int. Cl.
CPC ...
G06T 7/00 (2006.01); G01C 21/36 (2006.01); H04N 5/247 (2006.01); H04N 5/33 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3602 (2013.01); G06T 7/0026 (2013.01); G06T 7/0028 (2013.01); H04N 5/2256 (2013.01); H04N 5/247 (2013.01); H04N 5/332 (2013.01); G06T 2207/30252 (2013.01);
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.

Find Patent Forward Citations

Driscoll, Tom. (2017). Dead reckoning system for vehicles (U.S. Patent No. 9677897). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9677897

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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