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:
Oct. 04, 2016
Filed:
Sep. 06, 2013
Applicant:
At&t Mobility Ii Llc, Atlanta, GA (US);
Inventor:
Loc Yu, Seattle, WA (US);
Assignee:
AT&T MOBILITY II LLC, Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B 21/00 (2006.01); A45B 3/00 (2006.01); A45B 1/02 (2006.01); A45B 9/04 (2006.01); A61F 9/08 (2006.01); A45B 9/00 (2006.01);
U.S. Cl.
CPC ...
G09B 21/003 (2013.01); A45B 1/02 (2013.01); A45B 3/00 (2013.01); A45B 9/04 (2013.01); A45B 2009/002 (2013.01); A61F 9/08 (2013.01);
Abstract
Methods, systems, and products estimate distances to aid a visually impaired user of a mobile device. As the user carries the mobile device, a camera in the mobile device captures images of a walking cane. The images of the walking cane are analyzed to infer a distance between a tip of the walking cane and the mobile device. The distance may then used by navigational tools to aid the visually impaired user.