Navigation apparatus and method, and computer program product

Details Navigation apparatus and method, and computer program product Navigation apparatus and method, and computer program product

2007-04-17

2007-04-17

Black, Thomas (Department: 3661)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S200000, C700S209000, C700S210000, C340S990000, C340S995180

Reexamination Certificate

active

10738093

ABSTRACT:
A navigation apparatus is provided with: a first storing device for storing original data for a navigation based on a predetermined format and including map data, in such a manner that an empty area exists on the predetermined format in each processing unit for a predetermined kind of navigation processing; a second storing device for storing difference update data representing a data portion for the navigation that is updated with respect to the original data as a standard; and a re-writing device for generating updated data based on the format and including the original data and merge data, by re-writing the merge data at least partially into the empty area corresponding to the merge data. The merge data defines a relationship of the difference update data with respect to the original data. The navigation apparatus is also provided with a processing device performing the navigation processing on the basis of the original data and the difference update data.

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patent: 2004/0088110 (2004-05-01), Suzuki
patent: 2001-229369 (2001-08-01), None

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