Method for acquiring map information, method of navigation, method of providing area information, navigation apparatus, area information providing apparatus and car
First Claim
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1. A method for acquiring map information comprising the steps of:
- receiving a broadcast signal including at least map information and traffic information transmitted from transmitting stations such that said map information and traffic information correspond only to the area in which the transmitting station that transmitted the broadcast signal is located, and wherein different transmitting stations are located in different respective areas,extracting said map information corresponding specifically to each respective area, said map information being contained in the received broadcast signal, andstoring the extracted map information.
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Abstract
A method for acquiring map information, a method of navigation, a method for providing area information, a navigation apparatus and an area information providing apparatus in which a predetermined broadcasting signal transmitted from a transmitting station, which is different at every area, is received by a receiver where map information at every area, which is included in the received broadcasting signal, is extracted by a map information extractor unit, and the map of an area, to which a present position belongs, is displayed on a display unit based on the extracted map information.
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Citations
23 Claims
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1. A method for acquiring map information comprising the steps of:
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receiving a broadcast signal including at least map information and traffic information transmitted from transmitting stations such that said map information and traffic information correspond only to the area in which the transmitting station that transmitted the broadcast signal is located, and wherein different transmitting stations are located in different respective areas, extracting said map information corresponding specifically to each respective area, said map information being contained in the received broadcast signal, and storing the extracted map information. - View Dependent Claims (2, 3, 4, 5)
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6. A method of navigation comprising the steps of receiving a broadcast signal including at least map information and traffic information transmitted from transmitting stations such that said map information and traffic information correspond only to the area in which the transmitting station that transmitted the broadcast signal is located, and wherein different transmitting stations are located in different respective areas,
extracting said map information specifically of each area, said map information being contained in the received broadcast signal, and making a map of an area covering a current position using said map information extracted from said broadcast signals and displaying the map.
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11. A method of providing map information comprising the steps of:
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arranging different transmitting stations in different respective areas, each of said transmitting stations transmitting a different broadcast signal, and at the same time, superimposing map information corresponding to the respective area in which each transmitting station is located on the broadcast signal from each transmitting station in each respective area and then transmitting the broadcast signal. - View Dependent Claims (12, 13, 14)
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15. A navigation apparatus comprising:
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a receiver unit for receiving a broadcast signal including at least map information and traffic information transmitted from a transmitting station such that said map information and traffic information correspond only to the area in which the transmitting station that transmitted the broadcast signal is located, and wherein different transmitting stations are located in a specific area of a plurality of areas, a map information extractor unit for extracting said map information corresponding to the specific area, said map information being contained in the broadcast signal received by said receiver unit, and a video signal generator unit for generating a video signal to display a map within an area covering a current position on the basis of said extracted map information. - View Dependent Claims (16, 17, 18, 19)
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20. A map information providing apparatus comprising
a storage unit for storing map information specifically corresponding to an area where a user'"'"'s station is arranged, and a transmitter unit for superimposing the map information stored in said storage unit on a signal supplied from a broadcast center side and for transmitting a superimposed signal as a broadcast signal to be received by the user'"'"'s station in the area.
Specification