×

Thermal imaging device

  • US 5,682,035 A
  • Filed: 09/06/1995
  • Issued: 10/28/1997
  • Est. Priority Date: 09/06/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A thermal imaging device including a detector array responsive to thermal infrared radiation, said detector array having a linearly-arrayed plurality of detector elements, a scanning device scanning a viewed scene across said plurality of detector elements, individually in response to incident infrared radiation said plurality of detector elements each providing a corresponding one of a plurality of detector-signals, said thermal imaging device comprising:

  • an absolute value circuit providing a corresponding plurality of absolute-value signals each indicative of the respective absolute value of one of said plurality of detector-signals during a scan of said viewed scene across said detector, an averaging circuit providing an average-value signal indicative of the average of said plurality of absolute-value signals, and a median value compiler circuit providing a median-value signal indicative of the median of said plurality of absolute-value signals.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×