Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2008-04-01
2008-04-01
Tran, Dalena (Department: 3664)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
C340S995100
Reexamination Certificate
active
10772499
ABSTRACT:
A method and apparatus for a navigation system conducts a data search for finding relative density of objects such as points of interest in a specified area and displays the result of the search in various manners. The display method includes the steps of: defining a size and shape of a search template; scanning the search template on the search area by displacing its position by a predetermined increment; counting and recording a number of objects on the search area within the search template at every increment of the displacement position, thereby creating an object distribution matrix; applying a cluster search algorithm to the object distribution matrix, thereby detecting distribution of clusters of the objects; and displaying the clusters of the objects in the search area.
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patent: 7076505 (2006-07-01), Campbell
patent: 2002/0065605 (2002-05-01), Yokota
patent: 2003/0231208 (2003-12-01), Hanon et al.
patent: 2004/0107205 (2004-06-01), Burdick et al.
patent: 2004/0243307 (2004-12-01), Geelen
Alpine Electronics Inc.
Muramatsu & Associates
Tran Dalena
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