US PATENT SUBCLASS 367 / 136
.~ Responsive to intruder energy


Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

135  DF  RECEIVER CIRCUITRY {1}
136.~ Responsive to intruder energy


DEFINITION

Classification: 367/136

Responsive to intruder energy:

(under subclass 135) Subject matter wherein the circuitry is responsive to acoustic energy generated by the emplacement of a body within the region of sensitivity of the transducer.

(1) Note. Subject matter of this subclass type includes, for example, intrusion alarms.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93, for intrusion alarms responsive to disturbances in an acoustic wave field.

SEE OR SEARCH CLASS

340, Communications: Electrical,

566, for nonacoustic wave-type vibration detectors used to detect the intrusion or movement of a vibration producing body.