Security system

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S545300, C340S565000, C342S028000

Reexamination Certificate

active

07084761

ABSTRACT:
There is provided a device in which surroundings of a building can be monitored using a sensor; when detecting an intruder, an object can be detected even in the case of bad weather; and a predetermined area can be monitored using as few sensors as possible. The device includes a security system which emits a radio wave from a building to a predetermined area outside the building to detect an object, and on the basis of output of the object detecting unit, a judgment is made as to whether or not the object will intrude into the predetermined area.

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patent: 2000-003478 (1998-06-01), None
patent: 2000-336231 (2000-12-01), None
patent: 2000-338231 (2000-12-01), None
patent: WO93/23833 (1993-11-01), None
Japanese Office Action dated Aug. 17, 2005, with partial English translation.

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