07688227 is referenced by 7 patents and cites 24 patents.

A graphical mapping system configured to display mapping information on a handheld device is disclosed. The system includes an image map database configured to store map data for a plurality of geographic areas, which is useful for generating graphical maps. The system further includes a vector map database configured to store vector map data, which is useful for generating vector “overlays” that correspond to the graphical maps. In response to a mapping request from a handheld device, a set of image mapping data and a corresponding set of vector mapping data, both associated with a given geographic location, are retrievable.

Title
Dynamic location-based mapping system and method
Application Number
11/96107
Publication Number
7688227 (B1)
Application Date
March 31, 2005
Publication Date
March 30, 2010
Inventor
Matthew C Lemay
Cambridge
MA, US
YiYi He
Sudbury
MA, US
Jianxiu Hao
Lexington
MA, US
Serkan Tosun
Marlborough
MA, US
Assignee
Verizon Data Services
FL, US
IPC
G08G 1/123
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