Method and structure for distribution of travel information using network
First Claim
1. A vehicle locating system comprising:
- a data processing station connected to a data network accessible by wireless communication, said data processing station having a database including maps; and
a mobile unit including a global positioning system (GPS) receiver and a wireless transmitter, said receiver receiving positional information from GPS satellites and transmitting said positional information to said data processing station via said data network;
wherein when said data processing station receives said positional information, said data processing station computes a measured position for said mobile unit, stores said measured position of said mobile unit in said database, associates said measured position of said mobile unit with a map in said database, creates from said may a second map embedded therein a marker indicating said measured position of said mobile unit, and provides said second map for display through a data network.
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0 Petitions
Accused Products
Abstract
A method is provided for processing position and travel related information through a data processing station on a data network. In one embodiment, a GPS receiver is used to obtain a measured position fix of a mobile unit. The measured position fix is reported to the data processing station which associates the reported position to a map of the area. Typically, the measured position of the mobile unit is marked and identified by a marker on the map. The area map is then stored in the data processing station and made available for access by authorized monitor units or mobile units. An authorized monitor unit may request for a specific area map by sending a request through the data network. Upon receiving a request, the data processing unit sends the area map to the monitor unit. Data processing station may also perform a database search for travel-related information, such as directions to a gasoline station.
866 Citations
44 Claims
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1. A vehicle locating system comprising:
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a data processing station connected to a data network accessible by wireless communication, said data processing station having a database including maps; and a mobile unit including a global positioning system (GPS) receiver and a wireless transmitter, said receiver receiving positional information from GPS satellites and transmitting said positional information to said data processing station via said data network;
wherein when said data processing station receives said positional information, said data processing station computes a measured position for said mobile unit, stores said measured position of said mobile unit in said database, associates said measured position of said mobile unit with a map in said database, creates from said may a second map embedded therein a marker indicating said measured position of said mobile unit, and provides said second map for display through a data network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 42, 43, 44)
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35. A method for locating a mobile unit, comprising the steps of:
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receiving in a mobile unit global positioning signals transmitted by global positional system (GPS) satellites to derive a set of positional data representing the position of said mobile unit relative to said satellites; transmitting said positional data to a data processing station through a data network; receiving in said processing data station said positional data and storing said positional data in a database for later retrieval; retrieving said positional data in said processing station and computing a measured position of said mobile unit; creating a map embedded therein a marker indicating said measured position of said mobile unit; and providing said map by said processing station for display through said data network. - View Dependent Claims (36, 37, 38, 39)
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40. A method for calculating a corrected measured position of a mobile unit at a data processing station, comprising the steps of:
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at said mobile unit, receiving global positioning system (GPS) data signals from GPS satellites; sending said positional information to said data processing station; at said data processing station, receiving differential correction data corresponding in time to said positional information from a differential correction station; sending said differential correction data to said mobile unit; and at said mobile unit, calculating said corrected measured position of said mobile unit;
based on said positional information and said differential data. - View Dependent Claims (41)
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Specification