Radio-linked intrusion alarm system

Details Radio-linked intrusion alarm system Radio-linked intrusion alarm system

1996-08-14

1999-11-16

Swann, Glen

Communications: electrical

Condition responsive indicating system

With particular coupling link

340427, 340545, 340566, 340693, G08B 1302

Patent

active

059865482

ABSTRACT:
A movement detector situated within a portable housing is coupled to an access to an entity. The movement detector generates a movement signal upon the vibration or moving of the movement detector. A transmitter transmits a remote motion detection signal via free space upon the receipt of the movement signal. The movement detector is powered by a battery situated within the portable housing thereof. Controller circuitry having an input terminal is coupled to a movement detector receiver which generates an alarm activation signal at an output thereof upon the receipt via free space of the remote motion detection signal. The controller circuitry further has an output terminal for transmitting an alarm activation signal upon receipt of the alarm activation signal at the input terminal thereof. Also included is a transmitter coupled to the output terminal of the controller circuitry for transmitting an alarm signal to a remote location through space upon receipt of the alarm activation signal. Finally, a portable user component is included comprising a receiver for transmitting an alarm activation signal upon receipt of the alarm signal from the transmitter. Alarm means are coupled to the receiver for transmitting an alarm upon receipt of the alarm activation signal.

REFERENCES:
patent: 3192517 (1965-06-01), Werlin
patent: 4618857 (1986-10-01), Dubois et al.
patent: 5200735 (1993-04-01), Hines
patent: 5319698 (1994-06-01), Glidewell et al.
patent: 5512880 (1996-04-01), Abrams et al.
patent: 5534847 (1996-07-01), McGregor

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