Radio controlled home security system

Details Radio controlled home security system Radio controlled home security system

1989-11-20

1990-11-13

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

250342, 340539, 340542, G08B 1318, E05B 4506

Patent

active

049704940

ABSTRACT:
A security system has a wall mounted assembly for installation adjacent an entry door and includes a motion detector for sensing intruders, an alarm for sounding a warning, an alarm circuit, a radio receiver responsive to two codes, and an electric door striker. A portable miniature transmitter has two transmission codes to activate the receiver, one for toggling the alarm circuit between armed and disarmed condition and for releasing the door upon disarming the alarm circuit. When the circuit is armed the motion detector is able to activate the alarm. The second transmission code activates the alarm if the circuit is armed. Remote self contained motion detector and transmitter units for use in other rooms use the second code to activate the alarm when motion is detected by those units.

REFERENCES:
patent: 3891980 (1975-06-01), Lewis et al.
patent: 3936673 (1976-02-01), Kelly et al.
patent: 4196422 (1980-04-01), Swigert et al.
patent: 4370644 (1983-01-01), Droz
patent: 4590460 (1986-05-01), Abbott et al.
patent: 4594580 (1986-06-01), Nelson
patent: 4794368 (1988-12-01), Grossheim et al.
patent: 4833449 (1989-05-01), Gaffigan

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