Infrared detector with direction identification capability
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United States of America Patent
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-
Apr 3, 1990
Grant Date -
N/A
app pub date -
Apr 1, 1988
filing date -
Apr 9, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An infrared detector includes process and circuitry for detecting the direction of movement of a radiation source with a predetermined resolution. Four radiation-sensitive elements defining a square are provided in the detector, each connected to an evaluation circuit which compares the output signals from the elements. A normalized pulse is generated upon the occurrence of the maximum of the output signal from each of the elements. The direction of movement of the radiation source is identified from the chronological sequence and spacing of the normalized pulses.
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