Patent ReferencesCompandor apparatus Telephone accessible information system Method and apparatus for squelching dependent on detected bond rate to reduce unwanted audible noise on a mixed voice data channel Mobile object navigation system Cellular telephone system that uses position of a mobile unit to make call management decisions Road map displaying system for automotive vehicle Mobile unit tracking system Position recognition system and position-coordinate converting device Remote vehicle communications system and method Directional voice-type navigation apparatus InventorsAssigneeApplicationNo. 698148 filed on 08/15/1996US Classes:705/1, AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT340/990, With map display340/991, Position indication transmitted by vehicle after receipt of information from local station701/200, NAVIGATION701/201Determination of travel data based on the start point and destination pointExaminersPrimary: Hayes, Gail O.Assistant: Tucker, Christopher M. Attorney, Agent or FirmForeign Patent References
International ClassH04K 001/00AbstractA system for providing position-related information to a mobile user includes a mobile unit and a central site server. The mobile unit includes circuitry for determining present position information from position signals which may emanate from, for example, GPS satellites. The mobile unit further includes circuitry for establishing a wireless bidirectional communications link with the central site server via a terrestrial network, which may be accessed via a cellular telephone network. The central site server includes circuitry for receiving the present position information from the mobile unit. A table stored at the central site server includes different response information in correspondence with possible positions of the mobile unit. The response information may further be in correspondence with user preferences. The central site server uses the received present position information to retrieve corresponding response information from the table, and sends the retrieved response information to the mobile unit via the bidirectional communications link. The mobile unit further includes circuitry, such as a loudspeaker, for supplying the response information to the mobile user. In another aspect of the invention, communications between the mobile unit and the central site server are encrypted. Furthermore, the mobile unit may include components for preventing position information from being supplied to the loudspeaker, thereby eliminating distracting noise from being presented to the user.Other References
Field of SearchPosition indicating (e.g., triangulation)Using Global Positioning System (GPS) Means to improve accuracy of position or location Having multiple GPS antennas or receivers (e.g., differential GPS) Determination of travel data based on the start point and destination point Noise suppression or echo cancellation Auxiliary data signaling (e.g., short message service (SMS)) AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT With map display Position indication transmitted by vehicle after receipt of information from local station | |