Patent ID: 7638753
Filing Date: 2009-12-29
Classification: G01V

Abstract:
1. A method of operating an optoelectronic sensor, comprising: a light transmitter transmitting light signals having a first time interval in a direction of a monitored zone, with at least some of the light signals each comprising a plurality of sequential individual pulses; a light receiver receiving the transmitted light signals; and an evaluation unit processing received signals generated from the received light signals and outputting an object detection signal in dependence on results of the processing performed by the evaluation unit, wherein a plurality of the light signals are transmitted in a regular order, wherein characteristics of respective ones of the received signals are evaluated differently, wherein a respective cumulative value is formed for each of the received light signals from n values of the received signals associated with respective ones of the light signals after each of the n values are multiplied by a factor, where n is greater than zero, and wherein each of the n values are associated with a respective start and a respective end of received members of the plurality of sequential individual pulses of the respective ones of the light signals and are each allocated different signs.