Vehicle navigation apparatus with new route replanning apparatus

Patent 5508930 Issued on April 16, 1996. Estimated Expiration Date:

December 27, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Method for traffic determination in a routing and information system for individual motor vehicle traffic
Patent #: 4350970
Issued on: 09/21/1982
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Automobile navigation system using real time spoken driving instructions
Patent #: 5177685
Issued on: 01/05/1993
Inventor: Davis, et al.

Vehicle route planning system
Patent #: 5184303
Issued on: 02/02/1993
Inventor: Link

Land vehicle multiple navigation route apparatus
Patent #: 5220507
Issued on: 06/15/1993
Inventor: Kirson

Land vehicle navigation apparatus with visual display
Patent #: 5243528
Issued on: 09/07/1993
Inventor: Lefebvre

Land vehicle navigation apparatus Patent #: 5323321
Issued on: 06/21/1994
Inventor: Smith, Jr.

Inventor

Smith, Jr., Bernard C.

Assignee

Motorola, Inc.

Application

No. 364836 filed on 12/27/1994

US Classes:

701/201, Determination of travel data based on the start point and destination point73/178R, NAVIGATION340/988, VEHICLE POSITION INDICATION701/207, Employing position determining equipment701/225Determining range without range measurement

Examiners

Primary: Park, Collin W.

Attorney, Agent or Firm

Melamed; Phillip H.

International Class

G06F 165/00

Abstract

Vehicle navigation apparatus (10) calculates an initial route to a destination (52) via connected road segments (55, 59) defined in a road map data base. In response to a can't do-reroute signal, indicative of the vehicle user determining unsuitability of following the initial route guidance instructions, a new route (55, 60, 61, 62, 59) to the destination is provided. Automatically excluded from the,new route is a maneuver (ordered road segment pair (55-59)) and/or a road segment of the initial route. This prevents the new route from including an initial guidance instruction which was determined as unsuitable. Also, calculated routes are provided by calculating the route from a predicated position of the vehicle at a subsequent time based on the vehicle's current position, direction and rate of travel. This ensures that when the route is provided at the subsequent time, the vehicle will not have passed the first maneuver to be implemented in the calculated route.

Other References

M. L. G. Thoone, Philips Technical Review, vol. 43, No. 11/12, "CARIN, a car information and navigation system", Dec. 1987, pp. 317-329
James R. Davis, "Back Seat Driver: voice assisted automobile navigation", Massachusetts Institute of Technology, Sep. 198