Navigation device, information input/output device, navigation system, navigation display method, and navigation display program

An information input/output device comprising:

• an input portion;
• an output portion;
• and
• a controller that:
• receives an amount of output data greater than one output section from a navigation device, one output section being an amount of the output data that can be displayed on a single screen of the information input/output device;
• records at least a portion of the output data in a recording device;
• outputs a section of the output data on the output portion;
• and
• shifts the output data that is output on the output portion in accordance with a shift request from the input portion, such that a different section of the output data is displayed on the output portion.

A navigation system comprising:

• a navigation device;
• and
• an information input/output device that is connected with the navigation device, wherein
• the navigation device, comprises a first controller that acquires map data, generates output data for displaying a map based upon the map data, and sends to an information input/output device an amount of the output data that is greater than one output section, one output section being an amount of the output data that can be displayed on a single screen of the information input/output device;
• and
• the information input/output device comprises an input portion, an output portion, and a second controller that receives an amount of output data greater than one output section from a navigation device, records at least a portion of the output data in a recording device, outputs a section of the output data on the output portion, and shifts the output data that is output on the output portion in accordance with a shift request from the input portion, such that a different section of the output data is displayed on the output portion.

A navigation display method, comprising:

• acquiring map data;
• generating output data for displaying a map based upon the map data;
• and
• sending to an information input/output device an amount of the output data that is greater than one output section, one output section being an amount of the output data that can be displayed on a single screen of the information input/output device.

A navigation display method, comprising:

• receiving an amount of output data greater than one output section from a navigation device, one output section being an amount of the output data that can be displayed on a single screen of the information input/output device;
• recording at least a portion of the output data in a recording device;
• outputting a section of the output data on the output portion;
• and
• shifting the output data that is output on the output portion in accordance with a shift request from the input portion, such that a different section of the output data is displayed on the output portion.