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. 14, 2000

Filed:

Jan. 22, 1998
Applicant:
Inventors:

Richard Frederick Poppen, San Jose, CA (US);

Rodney Jude Fernandez, Fremont, CA (US);

Assignee:

Etak, Inc., Menlo Park, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ; G06G / ;
U.S. Cl.
CPC ...
701210 ; 701 26 ; 701201 ; 701209 ;
Abstract

A typical pathfinding system provides a user with a set of directions for following a path from an origin to a destination in a network. If the user deviates from the path, the system for recalculating a path determines a new path which directs the user from the user's new location, which is off the original path, to the destination. To decrease the amount of time needed to determine the new path to the destination, the system adds links to the network. Each of the added links connect nodes from the original path directly to the destination. A new path is determined from the new location to the destination using the augmented network.


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