Navigation system
First Claim
1. A navigation system comprising:
- a stream receiving means for receiving broadcast streams;
a data decoding means for sampling a data signal from the received streams and decoding the data signal into character string information;
a keyword recording means in which predetermined keywords associated with position information specified in map information data are recorded;
a matching means for performing matching so as to compare character string information with each of the keywords recorded in said keyword recording means and searching a keyword consistent with a keyword contained in the character string information;
a position information searching means for searching position information associated with the keyword contained in the character string information and detected to be consistent with a recorded keyword by said matching means; and
a display means for displaying the detected position information while superimposing it on a display image.
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Accused Products
Abstract
Disclosed are a navigation system and/or a point information display method and a program. The navigation system consists mainly of: a stream receiver that receives broadcast streams; a data decoder that samples a data signal from the received streams and decodes the data signal into character string information; a matching block that performs matching to compare a predetermined keyword, which is associated with position information specified in map information data, with stored keywords and searches a keyword consistent with the keyword contained in the character string information; a position information searching block that searches position information associated with the keyword contained in the character string information and detected to be consistent with a stored keyword by the matching block; and a display unit that displays the detected position information while superimposing it on a display image.
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Citations
8 Claims
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1. A navigation system comprising:
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a stream receiving means for receiving broadcast streams;
a data decoding means for sampling a data signal from the received streams and decoding the data signal into character string information;
a keyword recording means in which predetermined keywords associated with position information specified in map information data are recorded;
a matching means for performing matching so as to compare character string information with each of the keywords recorded in said keyword recording means and searching a keyword consistent with a keyword contained in the character string information;
a position information searching means for searching position information associated with the keyword contained in the character string information and detected to be consistent with a recorded keyword by said matching means; and
a display means for displaying the detected position information while superimposing it on a display image. - View Dependent Claims (2, 3, 4)
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5. A navigation system comprising:
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an information processing unit for sampling position information associated with contents acquired externally;
a display unit for displaying the sampled position information in association with the received contents while superimposing it on a map image. - View Dependent Claims (6)
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7. A point information display method for navigation systems comprising the steps of:
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receiving broadcast contents and decoding information of the contents;
judging whether the decoded information contains a keyword associated with point information concerning a position on a map; and
searching map information data for point information associated with the keyword contained in the decoded information, and displaying the point information while superimposing it on the map.
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8. A program for controlling an information processor that displays a map image and point information, said program allowing said information processor to perform:
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a process for receiving a broadcast radio wave, separating a predetermined signal from the other components of the radio wave, and decoding the predetermined signal;
a process for searching the decoded information for character string information consistent with any of keywords stored in said information processor;
a process for displaying the point information consistent with a stored keyword according to position information while superimposing it on the map image.
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Specification