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. 30, 2015
Filed:
Mar. 21, 2012
Applicant:
Hironori Sakakihara, Kawasaki, JP;
Inventor:
Hironori Sakakihara, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); G01S 19/55 (2010.01); G01C 21/08 (2006.01); G01C 21/20 (2006.01); G01S 5/00 (2006.01); G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
G01S 19/55 (2013.01); G01C 21/08 (2013.01); G01C 21/20 (2013.01); G01S 5/0036 (2013.01); G01S 5/0247 (2013.01);
Abstract
A method of inferring a user's direction by a computer, the method includes: recording a relative azimuth angle obtained from an output of a direction sensor included in a terminal apparatus carried by the user; identifying the user's direction at a first point at which the user's direction is capable of being identified; and inferring the user's direction at a second point by using a relative azimuth angle corresponding to the first point and a relative azimuth angle corresponding to the second point different from the first point, and the user's direction that has been identified at the first point.