Patent ID: 9280692
Filing Date: 2016-03-08
CPC Classification: G06K

Claim Text:
1. A method for evaluating by a radio frequency identification reader a data stream signal in respect of data and/or collision, comprising comparing the data stream signal with at least one threshold level using the radio frequency identification reader, and evaluating the results of the comparison using the radio frequency identification reader, wherein the at least one threshold level is adapted such that an adaptation speed of the at least one threshold level is adapted in dependence of an actual sample amplitude of the data stream signal, wherein the adaptation speed is a function of a variance of the at least one threshold level, a relative distance of the at least one threshold level to the actual sample amplitude of the data stream signal that is represented by and an on/off variable that is used to activate or deactivate an adaptation of the at least one threshold level, wherein S represents the actual sample amplitude of the data stream signal, and wherein L represents a threshold level.