Patent ID: 7434178

Claim:
A navigation apparatus adapted to be mounted on a vehicle, to which a communication device for communicating with an external is connectable, the navigation apparatus comprising: a display portion operable to display information; an input portion for inputting memo information; an outgoing/incoming call determination portion operable to determine whether the communication device conducts an outgoing call and determining whether the communication device receives an incomming call; a display control portion operable to control the display portion, wherein when the outgoing/incoming call determination portion determines that the communication device conducts the outgoing call or that the communication device receives the incoming call, the display control portion divides the display portion into a memo screen on which content of the memo information is displayed and a navigation screen on which navigation information is displayed; a character recognition portion operable to recognize the memo information drawn on the memo screen as character data; a character-extraction keyword registration portion for registering a plurality of character extraction keywords utilized for extracting a predetermined character data from the character data recognized by the character recognition portion; a character data extraction portion operable to extract a predetermined character data from the character data based on at least one of the plurality of character extraction keywords; and a character data registration portion operable to register the extracted character data by the character data extraction portion in a predetermined data base, wherein the character data extraction portion comprises: an update information determination portion operable to determine whether update information relating to the predetermined data base is contained in the predetermined character data extracted by the character data extraction portion; and an update information registration portion operable to register the update information in the predetermined data base when the update information determination portion determines that the update information is contained, wherein the input portion includes a touch panel for drawing the memo information on the memo screen in accordance with a touch operation.