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Infrared detector having at least one switch for modulation and/or bypass

  • US 9,151,676 B2
  • Filed: 03/11/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 04/12/2009
  • Status: Active Grant
First Claim
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1. A detector comprising:

  • at least one thermal sensing element being configured to;

    receive at least one oscillating signal;

    detect at least a portion of a thermal output from an object;

    generate an electrical output signal indicative of the detected thermal output; and

    modulate the electrical output signal with the at least one oscillating signal to provide a modulated output signal indicative of at least a portion of the image of the object;

    a converter configured to convert the modulated output signal into a digital modulated output signal; and

    a demodulation circuit configured to demodulate the digital modulated output signal to provide at least a portion of an image of the object.

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