Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2005-01-04
2005-01-04
Pope, Daryl (Department: 2632)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S506000, C340S533000, C340S514000, C340S516000, C340S003100, C340S539100
Reexamination Certificate
active
06838986
ABSTRACT:
Network-enabled devices are configured to report changes of state to a monitoring system. The monitoring system is configured to filter each change of state to determine whether the change of state constitutes a reportable event, based on a profile associated with the device. If the event is reportable, it is communicated to one or more other network-enabled devices. Each device is also configured to periodically verify its presence to the monitoring system, and the unexplained absence of the device is treated as a change of state of state of the device. In like manner, a change to the profile of a device is also treated as a change of state of the device.
REFERENCES:
patent: 5872931 (1999-02-01), Chivaluri
patent: 6211782 (2001-04-01), Sandelman et al.
patent: 6255945 (2001-07-01), Britton
patent: 6373383 (2002-04-01), Arrowsmith et al.
U.S. patent application Ser. No. 09/811,191, Shteyn, filed Mar. 16, 2001.
U.S. patent application Ser. No. 09/222,403, Cheng, filed Dec. 29, 1998.
U.S. patent application Ser. No. 09/176,171, Cheng, filed Oct. 21, 1998.
Koninklijke Philips Electronics , N.V.
Pope Daryl
Simons Kevin
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