Patent ID: 7554653
Filing Date: 2009-06-30
Classification: G01C

Abstract:
1. A method for determining a distance to a target of two or more targets by means of an electro optic distance measurement apparatus using time of flight measurements, the two or more targets being located along a common line of sight from the distance measurement apparatus, the method comprising: determining, by means of the distance measurement apparatus, approximate distances to the two or more targets, the approximate distances being determinable when the distance measurement apparatus is in a common line of sight with the two or more targets; determining reflection ratios for the two or more targets, displaying, on a display of the distance measurement apparatus, the approximate distances to the two or more targets and the reflection ratios for the two or more targets; selecting one of the two or more targets, wherein the selection is based on the reflection ratios for the two or more targets and the approximate distances in combination; receiving, via an input means of the distance measurement apparatus, an input indicating a selected target of the two or more targets; and determining, by means of the distance measurement apparatus, an accurate distance to the selected target.