US PATENT SUBCLASS 340 / 565
.~.~.~ Responsive to intruder energy

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
541  DF  .~.~ Intrusion detection {8}
565.~.~.~ Responsive to intruder energy {2}
566  DF  .~.~.~.~> Vibration
567  DF  .~.~.~.~> Electromagnetic energy

DEFINITION

Classification: 340/565

Responsive to intruder energy:

(under subclass 541) Subject matter responsive to the energy generated by the intrusion, or of the intruder's body.

(1) Note. The systems herein are generally passive. The term "generated" should be distinguished from the term "disturbance" used in subclasses 551-561 which implies a pre-existing energy field which is modified by the intrusion.