Vehicular navigation apparatus with help function
First Claim
1. A vehicular navigation apparatus for outputting guidance information for travel to a destination by an automotive vehicle having a navigation help function, which comprises:
- destination input means for inputting said destination;
present position input means for inputting a present position;
help function input means for initiating said navigation help function and inputting a selected help item;
data base means having map data, intersection data in road data;
display means for displaying guide information and help information;
route guide means for setting a guide route by conducting a predetermined processing in accordance with a predetermined sequence based upon said destination and said present position and data from said data base, and delivering to said display means said guide information in accordance with said guide route;
help function executing means for initiating said help function upon receipt of an input from said help function input means, delivering a menu of a plurality of help items to said display means, receiving said selected help item, and returning to said processing performed by said route guide means at a step corresponding to said selected help item;
first memory means for storing information corresponding to said guide route; and
secondary memory means having anon-volatile RAM for storing information stored in said first memory means when said navigation help function is initiated by said help function input means.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicular navigation apparatus, which is equipped with a help function, for outputting guidance information for travel to a desired destination includes an input unit having desired destination input means, present position input means and help function input means, a memory unit for storing desired destination information, and a display unit for outputting the guidance information in response to input information from the input unit, wherein the memory unit is provided with a non-volatile RAM, with necessary information being saved in an area of the non-volatile RAM when a help function is called by the help function input means. Help function items are provided for the following occasions: when the driver wishes to input or change a departure point and then depart from that point; when the driver wishes to change a desired destination while en route to a formerly set destination; when the driver strays off course while en route to a desired destination and cannot determine his present position without returning to the point at which the vehicle went off course; when a course cannot be travelled because of road construction or the like; when traffic becomes heavy and the driver wishes to change from one route to another to avoid congestion, and when the driver wishes to temporarily leave the course and then return to the course at the same point.
193 Citations
10 Claims
-
1. A vehicular navigation apparatus for outputting guidance information for travel to a destination by an automotive vehicle having a navigation help function, which comprises:
-
destination input means for inputting said destination; present position input means for inputting a present position; help function input means for initiating said navigation help function and inputting a selected help item; data base means having map data, intersection data in road data; display means for displaying guide information and help information; route guide means for setting a guide route by conducting a predetermined processing in accordance with a predetermined sequence based upon said destination and said present position and data from said data base, and delivering to said display means said guide information in accordance with said guide route; help function executing means for initiating said help function upon receipt of an input from said help function input means, delivering a menu of a plurality of help items to said display means, receiving said selected help item, and returning to said processing performed by said route guide means at a step corresponding to said selected help item; first memory means for storing information corresponding to said guide route; and secondary memory means having anon-volatile RAM for storing information stored in said first memory means when said navigation help function is initiated by said help function input means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A vehicular navigation apparatus for outputting guidance information for travel to a destination by an automotive vehicle having a navigation help function, which comprises:
-
an input means having destination input means for inputting a destination, present position input means for inputting a present position, and help function means for initiating and controlling said navigation help function; memory means for storing information corresponding to said destination, said memory means including a non-volatile RAM means for storing said information corresponding to said destination when said navigation help function is initiated by said help function input means; display means for displaying information in response to input information from said input means; and control means for receiving information from said input means, receiving and outputting information to said memory means, and outputting said guidance information to display means;
including means for providing a menu of a plurality of help items via said display means when said help function is initiated, receiving a selected help item from said input means, and providing help information via said display means based on said selected help item.
-
Specification