Motion detector and adapter therefor
First Claim
Patent Images
1. A motion detector for placement in a protected space and that normally provides a breach indication in response to a determination of motion in the protected space, comprising:
- a) a receiver adapted to provide an indication that an authorization signal has been received from a transmitter; and
,b) circuitry responsive to the indication provided by the receiver that prevents the motion detector from providing the breach indication.
0 Assignments
0 Petitions
Accused Products
Abstract
An object that can be sensed by a motion detector is equipped with a small, battery powered transponder. A motion detector has (either internally or externally) a transceiver adapted to provide a query signal. If the object is within range of the query signal, the transponder responds with a transponder signal. The transceiver is responsive to receipt of the transponder signal to prevent the detection of motion from causing an alarm.
30 Citations
34 Claims
-
1. A motion detector for placement in a protected space and that normally provides a breach indication in response to a determination of motion in the protected space, comprising:
-
a) a receiver adapted to provide an indication that an authorization signal has been received from a transmitter; and
,b) circuitry responsive to the indication provided by the receiver that prevents the motion detector from providing the breach indication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An adapter for motion detector of the type that is placed in a protected space and that normally provides a breach indication to an alarm panel in response to a determination of motion in the protected space, the adapter comprising:
-
a) a receiver adapted to provide an indication that an authorization signal has been received from a transmitter; and
,b) circuitry responsive to the indication provided by the receiver that prevents the breach indication from being provided. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A system for use with a motion detector comprising:
-
a) a normally open shutter adapted to be mounted over an infra-red sensing window of the motion detector and that prevents any substantial infra-red radiation from passing there-through to the sensing window when closed; and
,b) a housing containing a circuit that closes the shutter in response to receipt of an authorization signal. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
- 28. An adapter for a motion detector comprising a module containing circuitry that, in response to an authorization signal, prevents the motion detector from providing an indication of motion in a protected space to an alarm panel, the module being mountable on or near the motion detector.
Specification