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.

Date of Patent:
Mar. 20, 2018

Filed:

May. 11, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventor:

Masayoshi Teraguchi, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/36 (2006.01); G01C 21/34 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3626 (2013.01); G01C 21/3407 (2013.01); G01C 21/3453 (2013.01); G01C 21/362 (2013.01); G01C 21/3611 (2013.01);
Abstract

A computer implemented method for performing route guidance using text includes obtaining an optimal route that connects a start point and an end point of a route input by a user; comparing a route history stored in a memory with the optimal route and extracting a route portion from the optimal route, the route portion being replaceable by a route portion in the route history; creating route guidance for the route portion extracted from the optimal route by using a text indication known to the user, the known text indication specifying the replaceable route portion in the route history; and creating route guidance for a route portion in the optimal route, the route portion being not replaceable by a route portion in the route history, by using a new text indication that specifies the route portion that is not replaceable.


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