Navigation system using portable phone and navigation method using the same
First Claim
1. A navigation system using a portable phone comprising:
- a portable phone for transmitting destination information for a destination building, a navigation request for navigation to said destination building and present location information on a present location of a user of said portable phone;
a base station for controlling a call of said portable phone in its control area;
a building database file for storing information of each name and location of buildings existing in said control area;
a map database file for storing a map covering said control area and a map covering a periphery of said control area based on a building location;
a question message database file for storing question messages which demand said portable phone user to input a response according to a predetermined format to determine a present location of said portable phone user;
route search means for retrieving information for said destination building from said building database file based on a navigation request and destination information received through said base station, and searching said map database file for a navigation route starting from a present location to a destination based on present location information received through said base station and said retrieved destination building information, and for searching said question message database file for a question message used to determine the present location of said portable phone user; and
means for transmitting said question message and said navigation route to said portable phone through said base station.
1 Assignment
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Accused Products
Abstract
A name and a location of a building within a control area are correlated with a registered phone number. A map covering the control area and its periphery is stored based on the building. The destination building is searched based on the destination and navigation request. A plurality of voice direction messages are stored for directing the navigation. A plurality of question messages are stored for demanding the user to respond according to a predetermined format so as to specify the present location. When the navigation route extends over a plurality of control areas each controlled by a different base station, such information containing the destination, navigation request, present location and route is shared by those different base stations.
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Citations
14 Claims
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1. A navigation system using a portable phone comprising:
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a portable phone for transmitting destination information for a destination building, a navigation request for navigation to said destination building and present location information on a present location of a user of said portable phone; a base station for controlling a call of said portable phone in its control area; a building database file for storing information of each name and location of buildings existing in said control area; a map database file for storing a map covering said control area and a map covering a periphery of said control area based on a building location; a question message database file for storing question messages which demand said portable phone user to input a response according to a predetermined format to determine a present location of said portable phone user; route search means for retrieving information for said destination building from said building database file based on a navigation request and destination information received through said base station, and searching said map database file for a navigation route starting from a present location to a destination based on present location information received through said base station and said retrieved destination building information, and for searching said question message database file for a question message used to determine the present location of said portable phone user; and means for transmitting said question message and said navigation route to said portable phone through said base station. - View Dependent Claims (2, 3, 4)
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5. A voice navigation system using a portable phone comprising:
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a portable phone for transmitting a registered phone number of a phone set in a destination building, a navigation request for navigation to said destination building and present location information for a present location of a user; a base station for controlling a call of said portable phone in its control area; a building database file for storing information of each name and location of buildings existing in said control area correlated with a registered phone number of a phone set in said building; a map database file for storing a map covering said control area and a map covering a periphery of said control area based on a building location; a direction message database file for storing a plurality of voice direction messages for directing navigation; a question message database file for storing question messages which demand said user to input a response according to a predetermined format in order to determine said user'"'"'s present location; means for receiving a navigation request from said portable phone through said base station and a registered phone number of a phone set in said destination building and retrieving information for a name and location of said destination building from said building database file based on said registered phone number; means for searching said question message database file to retrieve a question message used to determine a present location of said portable phone user and transmitting said question to said portable phone through said base station; means for determining said user'"'"'s present location from said map database file based on a response to said question; means for searching said map database file to determine a navigation route starting from a present location to a destination based on said user'"'"'s present location and said destination building location; and means for searching said direction message database file for a direction message using a building as a navigation point along with said navigation route and transmitting said direction message to said portable phone through said base station. - View Dependent Claims (6)
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7. A navigation system using a portable phone that obtains information on a destination building, a navigation request for navigation to said building and location information of a Portable phone user'"'"'s present location from a base station controlling calls among a plurality of portable phones in its control area for navigating said portable phone comprising:
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a building database file for storing information of each name and location of buildings existing in said control area; a map database file for storing a map covering said control area and a map covering a periphery of said control area based on a building location; and a question message database file for storing question messages which demand said portable phone user to input a response according to a predetermined format to determine a present location of said portable phone user; and a route search device for searching a building database transposition file to determine a building corresponding to a destination and a navigation request and determining a navigation route based on location information and said destination within said map database file, and for searching said question message database file for a question message used to determine the present location of said portable phone user. - View Dependent Claims (8, 9, 10)
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11. A navigation method using a portable phone comprising the steps of:
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transmitting destination information of a destination building, a navigation request for navigation to said building and a user'"'"'s present location information to a base station by said user through a portable phone thereof, said base station controls an area used by said user; searching location information for said destination building from a building database file based on said transmitted destination information, said building database file storing each name and location for buildings existing in said control area; searching a map database file for a navigation route starting from a present location to a destination, said map database file storing a map covering said control area and a map covering a periphery of said control area based on a building location by referring to said transmitted present location information and said destination building location information; preparing a question message database file for storing question messages that demand said user to input a response according to a predetermined format in order to specify a present location, retrieving a question message used to specify a present location of said user from said question message database file; and navigating said user by transmitting said retrieved question message to said portable phone to determine a present location of said user, and transmitting said navigation route information to said portable phone. - View Dependent Claims (12, 13, 14)
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Specification