Method of inputting starting and destination points into navigation systems

US5107433A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Reinhard Helldorfer · Schwabach, DE
• Ulrich Kanzler · Stein, DE
• Hans Rauch · West Palm Beach, US
• Stefan Hartmann · Eggolsheim, DE

Key dates

• Filing date: Jun 18, 1990
• Grant date: Apr 21, 1992
• Expiry date: Jun 18, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C21/36
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method inputting starting and destination points into an electronic navigation system for motor vehicles in which relevant data of street system maps comprising a street identification character and reference point coordinates with assigned house numbers, are stored in a data storage. When inputting, the street identification character and house number of the starting and destination point are entered, then the data storage is first searched for the street identification character and then for the inputted house number. When there is agreement with a house number of the reference points in the data storage its coordinates are taken over for navigation. When there is a disagreement, the reference points adjacent to it in the data storage are determined and the coordinates of the starting or destination point are determined by means of interpolation and used for navigation (FIG. 20).