Microwave sensor

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S435000, C340S541000, C340S903000, C342S027000, C342S129000

Reexamination Certificate

active

07026931

ABSTRACT:
A sensor has a trigger level that is set in advance in which a distance to a detected object and a signal level of waves reflected from the object are associated. The sensor only dispatches an object detection signal indicating that the detected object is an object to be considered as a detection target having a size larger than a predetermined size when a reflected wave that has a signal level exceeding the trigger level is received.

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patent: 0191510 (1986-08-01), None
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patent: 8-166449 (1996-06-01), None
patent: 2000-338234 (2000-12-01), None

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