Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
158 words
A navigation system (100) comprising a display means (13) for displaying a map image, characterized in that said navigation system further comprises: a storage means (DK) for storing map data and supplementary service data; a position detecting means (21, 22, 23, 24) for detecting a current position of a movable body to which the navigation system is equipped; and a display control means (10), coupled to said storage means, said position detecting means and said display means, for reading the stored map data and the stored supplementary service data corresponding to a peripheral area of the detected current position, making said display means display the map image and a supplementary service data image having a transparent background pattern superimposed on the map image, such that a portion of the map image at the supplementary service data image is displayed through the transparent background pattern, on the basis of the read map data and the read supplementary service data.
Claim 2
Dependent Claim
42 words
A navigation system (100) as claimed in claim 1, characterized in that said display control means (10) is adapted to make said display means (13) display the supplementary service data image having a striped background pattern superimposed on the displayed map image.
Claim 3
Dependent Claim
40 words
A navigation system (100) as claimed in claim 1 or 2, characterized in that said display control means (10) is adapted to sequentially read the map data from said storage means in accordance with the movement of the movable body.
Claim 4
Dependent Claim
59 words
A navigation system (100) as claimed in any one of claims 1 to 3, characterized in that said display control means (10) is adapted to read the stored supplementary service data related to the map display data currently displayed on the display means (13), generate superimposed supplementary data indicating the supplementary service data image having the transparent background pattern.
Claim 5
Dependent Claim
24 words
A navigation system (100) as claimed in any one of claims 1 to 4, characterized in that said storage means (DK) comprises a CD-ROM.
Claim 6
Dependent Claim
45 words
A navigation system (100) as claimed in any one of claims 1 to 5, characterized in that said position detecting means (21, 22, 23, 24) comprises at least one of a GPS receiver, an azimuth sensor, an angular speed sensor and a travel distance sensor.
Claim 7
Dependent Claim
41 words
A navigation system (100) as claimed in any one of claims 1 to 6, characterized in that said navigation system further comprises an input means (11) coupled to said display control means (10) for inputting instructions to said display control means.
Claim 8
Dependent Claim
48 words
A navigation system (100) as claimed in any one of claims 1 to 7, characterized in that said display control means (10) is adapted to make said display means (13) display the supplementary service data image in a corner portion of a display plane of said display means.