Supervision of high value assets
First Claim
1. An electronic device in a local area network, comprising:
- a network interface that communicates with a connection point of the local area network, and that receives a polling signal from a security system in the local area network via the connection point; and
a control that causes the network interface to communicate a response to the security system via the connection point in response to receipt of the polling signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Electronic devices in a local area network (LAN), e.g., a DVD video recorder, plasma display, and audio controller in a home network, are protected by a security system that is networked with the devices. In one aspect, the security system periodically polls the devices to confirm that they are present in the LAN. If a device does not respond, an alarm is set. Installation of the electronic device in an unauthorized network is detected by verifying the Internet Protocol (IP) address of the device, such as when the device attempts to contact a server that provides services such as downloading new or updated software to the device, performing remote programming, and uploading diagnostic data. The devices may encrypt their messages using encryption codes that are unique individually or for a specified group of electronic devices.
-
Citations
34 Claims
-
1. An electronic device in a local area network, comprising:
-
a network interface that communicates with a connection point of the local area network, and that receives a polling signal from a security system in the local area network via the connection point; and
a control that causes the network interface to communicate a response to the security system via the connection point in response to receipt of the polling signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A security system, comprising:
-
a network interface that communicates with a connection point of a local area network; and
a control that causes the network interface to transmit a polling signal to an electronic device in the local area network via the connection point;
wherein the control sets an alarm if a response to the polling signal is not received from the electronic device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. An electronic device in a local area network, comprising:
-
a network interface that communicates with a connection point of the local area network; and
a control that causes the network interface to transmit a message, via the connection point, to a remote server;
wherein the message includes an address and an identifier associated with the electronic device. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
-
28. A security system server, comprising:
-
a network interface that receives a message that includes an address and an identifier associated with an electronic device;
wherein the electronic device is provided in a local area network; and
means for determining whether the address is consistent with the identifier. - View Dependent Claims (29, 30, 31, 32, 33, 34)
-
Specification