Map display apparatus
First Claim
1. A map display apparatus comprising:
- memory means for storing map data necessary for plotting a map of a predetermined region;
character data selection means for selecting a character string having a predetermined attribute from character data read out from said memory means;
perspective conversion means for perspective converting the character data selected by said character data selection means to produce perspective-converted character data;
character data display means for displaying the perspective-converted character data produced by said perspective conversion means by a bird'"'"'s-eye view display; and
vector data display means for executing perspective conversion for vector data read out from said memory means and displaying it by a bird'"'"'s-eye view display;
wherein said character data selection means includes;
character overlap judgement means for judging overlap between different character strings; and
character string selection means for selecting a character string having a predetermined attribute for those character strings which are judged as overlapping by said character overlap judgement means.
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation apparatus for displaying most appropriately information such as character strings, routes, etc., when a map is displayed by bird'"'"'s-eye view display. The navigation apparatus includes a portion for calculating the present position on the basis of information from sensors, a portion for executing perspective conversion operation for displaying a map by bird'"'"'s-eye view display, a portion for disposing the present position or the present position and a position representing a destination at the most suitable positions, a portion for controlling so that overlap of character strings can be eliminated, a portion for controlling the same character strings, a portion for displaying most appropriately a background such as lines and planes, a portion for controlling marks to be displayed, and a portion for executing graphic plotting by using the resulting map data.
126 Citations
30 Claims
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1. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; character data selection means for selecting a character string having a predetermined attribute from character data read out from said memory means; perspective conversion means for perspective converting the character data selected by said character data selection means to produce perspective-converted character data; character data display means for displaying the perspective-converted character data produced by said perspective conversion means by a bird'"'"'s-eye view display; and vector data display means for executing perspective conversion for vector data read out from said memory means and displaying it by a bird'"'"'s-eye view display; wherein said character data selection means includes; character overlap judgement means for judging overlap between different character strings; and character string selection means for selecting a character string having a predetermined attribute for those character strings which are judged as overlapping by said character overlap judgement means. - View Dependent Claims (4, 5, 6)
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2. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; character data selection means for selecting a character string having a predetermined attribute from character data read out from said memory means; perspective conversion means for perspective converting the character data selected by said character data selection means to produce perspective-converted character data; character data display means for displaying the perspective-converted character data produced by said perspective conversion means by a bird'"'"'s-eye view display; and vector data display means for executing perspective conversion for vector data read out from said memory means and displaying it by a bird'"'"'s-eye view display; wherein said character data selection means includes; character overlap judgement means for judging overlap between different character strings; and character string selection means for selecting a character string in the proximity of a visual point for those character strings which are judged as overlapping by said character overlap judgement means.
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3. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; character data selection means for selecting a character string having a predetermined attribute from character data read out from said memory means; perspective conversion means for perspective converting the character data selected by said character data selection means to produce perspective-converted character data; character data display means for displaying the perspective-converted character data produced by said perspective conversion means by a bird'"'"'s-eye view display; and vector data display means for executing perspective conversion for vector data read out from said memory means and displaying it by a bird'"'"'s-eye view display; wherein said character data selection means includes; character overlap judgement means for judging overlap between different character strings; and font substitution means for a smaller font for those character strings which are judged as overlapping by said character overlap judgement means.
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7. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; same character string selection means for selecting the same character strings from character data read out from said memory means; character data selection means for selecting a predetermined character string from the same character strings selected by said same character string selection means; perspective conversion means for perspective converting the character data selected by said character data selection means to produce perspective-converted character data; character data display means for displaying the perspective-converted character data produced by said perspective conversion means by a bird'"'"'s-eye view display; and vector data display means for executing perspective conversion for vector data read out from said memory means and displaying it by a bird'"'"'s-eye view display. - View Dependent Claims (8, 9, 10)
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11. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; map display means for displaying a bird'"'"'s-eye view map by using map data read out from said memory means; driving orbit memory means for storing a car'"'"'s own driving orbit; and driving orbit display means for executing perspective conversion of a plurality of routes stored in said driving orbit memory means to produce perspective-converted routes and displaying said perspective-converted routes in such a manner that the gaps between orbit point strings become equidistant when said perspective-converted routes are displayed by a bird'"'"'s-eye view display. - View Dependent Claims (12, 13)
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14. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; map data display means for executing perspective conversion of each apex when a pattern exists in the map data read out from said memory means, and displaying the map data by using a pattern used for a plan view map display; and character data display means for executing perspective conversion for the character data read out from said memory means and displaying it by a bird'"'"'s-eye view display. - View Dependent Claims (15, 16)
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17. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; map display means for selectively displaying either a bird'"'"'s-eye view map or a plan view map by using the map data read out from said memory means; mark selection means for selecting a respective mark to be displayed in superposition with the displayed bird'"'"'s-eye view map and the displayed plan view map; and mark display means for displaying the selected mark in superposition with the displayed bird'"'"'s-eye view map or the displayed plan view map.
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18. A map display apparatus comprising:
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memory means for storing map data necessary for plotting a map of a predetermined region; map display means for displaying a bird'"'"'s-eye view map and a plan view map by using the map data read out from said memory means; mark selection means for selecting a mark in accordance with the map to be displayed in superposition with the map to be displayed; and mark display means for displaying the mark selected by said mark selection means in superposition with the bird'"'"'s-eye view map and the plan view map. - View Dependent Claims (19, 20, 21, 22)
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23. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a character data selector which selects a character string having a predetermined attribute from character data read out from said memory; a perspective converter which perspective converts the character data selected by said character data selector to produce perspective-converted character data; a character data display which displays the perspective-converted character data produced by said perspective converter by a bird'"'"'s-eye view display; and a vector data display which executes perspective conversion for vector data read out from said memory and displays it by a bird'"'"'s-eye view display; wherein said character data selector includes; a character overlap judger which judges overlap between different character strings; and a character string selector which selects a character string having a predetermined attribute for those character strings which are judged as overlapping by said character overlap judger.
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24. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a character data selector which selects a character string having a predetermined attribute from character data read out from said memory; a perspective converter which perspective converts the character data selected by said character data selector to produce perspective-converted character data; a character data display which displays the perspective-converted character data produced by said perspective converter by a bird'"'"'s-eye view display; and a vector data display which executes perspective conversion for vector data read out from said memory and displays it by a bird'"'"'s-eye view display; wherein said character data selector includes; a character overlap judger which judges overlap between different character strings; and a character string selector which selects a character string in the proximity of a visual point for those character strings which are judged as overlapping by said character overlap judger.
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25. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a character data selector which selects a character string having a predetermined attribute from character data read out from said memory; a perspective converter which perspective converts the character data selected by said character data selector to produce perspective-converted character data; a character data display which displays the perspective-converted character data produced by said perspective converter by a bird'"'"'s-eye view display; and a vector data display which executes perspective conversion for vector data read out from said memory and displays it by a bird'"'"'s-eye view display; wherein said character data selector includes; a character overlap judger which judges overlap between different character strings; and a font substituter for a smaller font for those character strings which are judged as overlapping by said character overlap judger.
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26. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a same character string selector which selects the same character strings from character data read out from said memory; a character data selector which selects a predetermined character string from the same character strings selected by said same character string selector; a perspective converter which perspective converts the character data selected by said character data selector to produce perspective-converted character data; a character data display which displays the perspective-converted character data produced by said perspective converter by a bird'"'"'s-eye view display; and a vector data display which executes perspective conversion for vector data read out from said memory and displays it by a bird'"'"'s-eye view display.
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27. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a map display which displays a bird'"'"'s-eye view map by using map data read out from said memory; a driving orbit memory which stores a car'"'"'s own driving orbit; and a driving orbit display which executes perspective conversion of a plurality of routes stored in said driving orbit memory to produce perspective-converted routes and displays said perspective-converted routes in such a manner that the gaps between orbit point strings become equidistant when said perspective-converted routes are displayed by a bird'"'"'s-eye view display.
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28. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a map data display which executes perspective conversion of each apex when a pattern exists in the map data read out from said memory, and displays the map data by using a pattern used for a plan view map display; and a character data display which executes perspective conversion for the character data read out from said memory and displays it by a bird'"'"'s-eye view display.
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29. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a map display which selectively displays either a bird'"'"'s-eye view map or a plan view map by using the map data read out from said memory; a mark selector which selects a respective mark to be displayed in superposition with the displayed bird'"'"'s-eye view map and the displayed plan view map; and a mark display which displays the selected mark in superposition with the displayed bird'"'"'s-eye view map or the displayed plan view map.
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30. A map display apparatus comprising:
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a memory which stores map data necessary for plotting a map of a predetermined region; a map display which displays a bird'"'"'s-eye view map and a plan view map by using the map data read out from said memory; a mark selector which selects a mark in accordance with the map to be displayed in superposition with the map to be displayed; and a mark display which displays the mark selected by said mark selector in superposition with the bird'"'"'s-eye view map and the plan view map.
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Specification