Map transmission for in-vehicle navigation system with dynamic scale/detail adjustment

Patent 5699255 Issued on December 16, 1997. Estimated Expiration Date:

October 18, 2015. 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

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Inventors

Assignee

Trimble Navigation Limited

Application

No. 544554 filed on 10/18/1995

US Classes:

701/212, Having variable map scale340/995.12, Transmission of map data to vehicle342/450Position indicating (e.g., triangulation)

Examiners

Primary: Park, Collin W.

Attorney, Agent or Firm

Wagner,Murabito & Hao

International Class

G06F 165/00

Abstract

An apparatus and method for providing map information of varying resolution to a navigation device. In one embodiment, a position determining system is attached to a navigation device. The position determining system generates position information, such as location, of the navigation device. The position information is transmitted to a base station containing map information. Map information related to, for example, the location of the navigation device is then transmitted from the base station to the navigation device. The map information is displayed on a display of the navigation device. Therefore, the base station only transmits map information related to the position information of the navigation device.