Patent ID: 7550727

Claim:
An infrared (IR) receiving device comprising IR detector elements ( 3 ) for receiving IR signals from a communication zone ( 5 ), as well as a processing circuit for deriving electric signals corresponding to the IR signals received, wherein the IR detector elements ( 3 ) are provided in at least one matrix-type arrangement ( 2 ) which corresponds to a matrix-type segmentation of the communication zone ( 5 ), and the processing circuit comprises a maximum detector circuit ( 9 ) connected to the IR detector elements ( 3 ), which maximum detector circuit ( 9 ) selects one respective maximum output signal from among the output signals of the IR detector elements ( 3 ) for deriving the electric signal, wherein a threshold-value-forming unit ( 11 ) is connected to the IR detector elements ( 3 ) whose output is connected to the input ( 22 ) of a comparator ( 12 ) at whose other input ( 21 ) the respective maximum IR detector element output signal is applied, and wherein each IR detector element ( 3 .i ) for selecting the maximum output signal has at least one consecutive diode ( 14 .ia , 14 .ib ), the diodes being interconnected by their sides facing away from the IR detector elements ( 3 .I).