Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-08-01
2006-08-01
Nguyen, Phung T. (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
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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Japanese Office Action dated Aug. 17, 2005, with partial English translation.
Izumi Shiho
Kondoh Hiroshi
Kuragaki Satoru
Kuroda Hiroshi
Mitzuishi Kenichi
Hitachi , Ltd.
Nguyen Phung T.
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