Method and system for presence detection

Details Method and system for presence detection Method and system for presence detection

2011-03-15

2011-03-15

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Presence detection only

C342S070000, C342S082000, C342S089000

Reexamination Certificate

active

07907082

ABSTRACT:
A method and system for presence detection within a detection volume delimited by an inner radius and an outer radius using microwave radiation. The outer radius of the detection volume is controlled by selecting the length of a first pulse controlling the transmit interval of a microwave transmitter and by selecting the length of a third pulse controlling the receive interval of a microwave receiver. The inner radius of the detection volume is controlled through selecting the length of a second pulse defining a predetermined time period between the first pulse and the third pulse.

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