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Infrared (ir)receiver device

  • US 20070007452A1
  • Filed: 09/30/2004
  • Published: 01/11/2007
  • Est. Priority Date: 10/08/2003
  • Status: Active Grant
First Claim
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1. 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 in that 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).

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