Map data processing unit
First Claim
1. A map data processing unit that has a function of updating map data, and includes a display section for performing various types of display including display of a processing result of the map data, a manipulation section for carrying out input manipulation for processing the map data, and a control section for performing entire control, said map data processing unit comprising:
- an update data input section for inputting update data for updating the map data to latest version map data;
a batch update section for collectively updating all the map data to the latest version map data in accordance with the update data fed from said update data input section;
a dynamic update section for updating the map data to the latest version map data in accordance with the update data fed from said update data input section every time the map data becomes necessary;
an update method selecting section for selecting one of the batch update section and dynamic update section in response to the update data; and
a map data storing section for storing the map data.
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Accused Products
Abstract
A map data processing unit includes a batch update section and dynamic update section. A type of update data fed from an update data input section is decided using header information. If the update data is route search data, the batch update section collectively updates all the map data to latest version map data according to the update data from the update data input section. If the update data is not the route search data, the dynamic update section updates the map data to the latest version map data according to the update data every time the map data becomes necessary. Thus performing the collective or dynamic update according to the type of the update data enables the update to the latest map data without affecting the operation speed of a navigation function, with minimizing the time precluding the use of the navigation function.
36 Citations
14 Claims
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1. A map data processing unit that has a function of updating map data, and includes a display section for performing various types of display including display of a processing result of the map data, a manipulation section for carrying out input manipulation for processing the map data, and a control section for performing entire control, said map data processing unit comprising:
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an update data input section for inputting update data for updating the map data to latest version map data;
a batch update section for collectively updating all the map data to the latest version map data in accordance with the update data fed from said update data input section;
a dynamic update section for updating the map data to the latest version map data in accordance with the update data fed from said update data input section every time the map data becomes necessary;
an update method selecting section for selecting one of the batch update section and dynamic update section in response to the update data; and
a map data storing section for storing the map data. - View Dependent Claims (2, 3, 4)
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5. A map data processing unit that has a function of updating map data, and includes a display section for performing various types of display including display of a processing result of the map data, a manipulation section for carrying out input manipulation for processing the map data, and a control section for performing entire control, said map data processing unit comprising:
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a post-update data cache section for temporarily storing, in a cache, latest version map data to be read in response to a request for map data;
an update data input section for inputting update data for updating the map data to the latest version map data, when said post-update data cache section does not store the map data; and
a dynamic update section for updating, when said update data input section inputs the update data, old version map data to latest version map data to be stored in the cache, in accordance with the update data fed from said update data input section every time a request for the map data occurs. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A map data processing unit comprising:
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an update data input section for inputting update data for updating old version map data to latest version map data;
an update data recording section for recording the update data input by said update data input section;
an update section for updating, when a map data request from an application occurs, the old version map data to the latest version map data in accordance with the old version map data and the update data stored in said update data recording section, which old version map data and update data correspond to the map data associated with the map data request from the application;
a map data storing section for storing the map data;
a display section for displaying a processing result of the map data;
a manipulation section for performing input manipulation for processing the map data; and
a control section for carrying out overall control.
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Specification