Subnet addressable radio activated switch

Details Subnet addressable radio activated switch Subnet addressable radio activated switch

2005-08-09

2005-08-09

Nguyen, Phung T. (Department: 2632)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S870030, C340S870030, C455S403000

Reexamination Certificate

active

06927684

ABSTRACT:
A remotely activated control device responsive to a specific transmitter operating in a frequency band assigned to radio telephone equipment, such as cellular telephone networks, cordless telephones, etc. The control device includes a radio receiver which provides a received pulse train to an assurance logic circuit. The assurance logic circuit determines if the received pulse train is limited to no more than a transmitter identification code and an action code, the combination of which is less than the code required to activate a relay network or initiate a radio telephone connection. Pulse trains accepted by the assurance logic circuit are compared to a stored code by a comparitor. The stored code includes the identification of a specific transmitter or group of transmitters and at least one action code. If the received pulse train matches the stored code, a switching circuit is activated to control a user supplied device.

REFERENCES:
patent: 5917405 (1999-06-01), Joao
patent: 6166652 (2000-12-01), Benvenuti
patent: 6185410 (2001-02-01), Greene
patent: 6567502 (2003-05-01), Zellner et al.
patent: 6661350 (2003-12-01), Rohrberg et al.
patent: 2001/0030612 (2001-10-01), Kerber et al.

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