Information display system with touch panel

An information display system for a vehicle navigation system, said information display system having a touch panel for selecting an item by touching the selected item among a plurality of items displayed on a single display screen, comprising

• storing means for storing display data for displaying the plurality of items including one set of typical coordinates indicating a position for each of the items;
• said plurality of items displayed on the display screen being marks displayed on a map so that the coordinates of the displayed items are the locations of the marks on the map;
• calculation means for calculating coordinate differences between the typical coordinates for each of the plurality of displayed items and a set of coordinates of a position of a single touch;
• select means for selecting the selected item by determining which item of the plurality of displayed items has the least calculated coordinate difference;
• deciding means for deciding whether or not a present touch is being made to correct an erroneous selection made from a previous touch;
• wherein said deciding means decides the present touch to be a correction of an erroneous selection based on conditions that the present touch is within a predetermined time from the previous touch and that the coordinate difference between the previous and present touch positions is within a predetermined range;
• and
• probability reducing means, responsive to a decision that the present touch is being made to correct an erroneous selection, for reducing a probability of selecting the previously selected item.

An information display system for a vehicle navigation system, said information display system having a touch panel for selecting an item by touching the selected item among a plurality of items displayed on a single display screen, comprising

• storing means for storing display data for displaying the plurality of items including one set of typical coordinates indicating a position for each of the items;
• said plurality of items displayed on the display screen being marks displayed on a map so that the coordinates of the displayed items are the locations of the marks on the map;
• calculation means for calculating coordinate differences between the typical coordinates for each of the plurality of displayed items and a set of coordinates of a position of a single touch;
• select means for selecting the selected item by determining which item of the plurality of displayed items has the least calculated coordinate difference;
• and
• a second candidate selecting switch, wherein when the second candidate selecting switch is operated, a next item is selected from the plurality of displayed items based on the next least coordinate difference calculated for said single touch.