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:
Sep. 29, 2009

Filed:

Apr. 07, 2006
Applicants:

Joshy Joseph, Los Altos Hills, CA (US);

Sridhar Ramaswamy, Cupertino, CA (US);

Mark Rose, Los Altos, CA (US);

Inventors:

Joshy Joseph, Los Altos Hills, CA (US);

Sridhar Ramaswamy, Cupertino, CA (US);

Mark Rose, Los Altos, CA (US);

Assignee:

Google Inc., Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 1/00 (2006.01); G08G 1/123 (2006.01); G01C 21/30 (2006.01); B60Q 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method for identifying, from a set of geographical areas, a set of target areas that overlap a map view or view port of a map. Target areas are defined as circles having centers and radii, as sets of geographic cells overlaying the areas, or as other polygons of geographic data. Within a view port served or to be served to a user, multiple points are defined and substantially equally spaced within the view port, such that any target area that may significantly overlap the view port (e.g., at least a threshold percentage of the view port) is likely to overlap a minimum number of the points (e.g., one). Some or all target areas are then tested for intersection with some or all of the points, and calculations may be made to determine how much the intersecting areas actually overlap the view port.


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