IP Library Granted Patent US 7,853,250
Granted Patent B2
US 7,853,250 · App. 10/405,499 · Granted Dec 14, 2010

Wireless intrusion detection system and method

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Quick Facts
Patent No.
US 7,853,250
App. No.
10/405,499
Granted
Dec 14, 2010
Kind
B2
Abstract

A wireless access device in a wireless network, whether a known or unknown entity, can be located using a geolocation system. A signal strength is determined by a wireless intrusion detection system (WIDS) node in a wireless network for each wireless access device that it detects. Based on the signal strength, an approximate distance from the node is determined, which, in one embodiment corresponds to a radius of a circle around the node. To account for error, an approximation band of the circle is calculated that will allow a user to determine the approximate location of the device within the wireless network.

Claims (22)

1. A method, performed by a wireless intrusion detection system, comprising:

determining, by a processor of the wireless intrusion detection system, locations of a plurality of wireless access devices;

comparing, by the processor, said locations of said plurality of wireless access devices to policy elements applicable to said plurality of wireless access devices; and

creating, by the processor, an alert if a wireless access device of said plurality of wireless access devices violates more than a threshold number of said policy elements.

2. A method as in claim 1 , where said determining further comprises determining approximate locations of the plurality of wireless access devices.

3. A method as in claim 1 , where each policy element is selected from a group including fixed wireless access device location, moving wireless access device, movable wireless access device, or unknown wireless access device.

4. The method of claim 1 where the plurality of wireless access devices includes a wireless access point.

5. The method of claim 1 where the plurality of wireless access devices includes a wireless client device.

6. The method of claim 1 where the determining includes:

determining the locations of the plurality of wireless access devices using triangulation.

7. A wireless intrusion detection system comprising:

a memory to store instructions; and

a processor to execute the instructions to:

determine locations of a plurality of wireless access devices;

compare the locations of the plurality of wireless access devices to policy elements applicable to the plurality of wireless access devices; and

create an alert if a wireless access device of the plurality of wireless access devices violates more than a threshold number of the policy elements.

8. The system as in claim 7 , where, when determining locations, the processor is to:

determine approximate locations of the plurality of wireless access devices.

9. The system of claim 7 , where the plurality of wireless access devices includes a wireless access point.

10. The system of claim 7 , where the plurality of wireless access devices includes a wireless client device.

11. The system of claim 7 , where, when determining locations, the processor is to:

determine the locations of the plurality of wireless access devices using triangulation.

Assignments (9)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2020
From: INTELLECTUAL VENTURES ASSETS 132 LLC
To: OZMO LICENSING LLC
Reel/Frame 051448/0907 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2019
From: OL SECURITY LIMITED LIABILITY COMPANY
To: INTELLECTUAL VENTURES ASSETS 132 LLC
Reel/Frame 050898/0090 →
MERGER Recorded Oct 27, 2015
From: TEKLA PEHR LLC
To: OL SECURITY LIMITED LIABILITY COMPANY
Reel/Frame 036979/0106 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2012
From: VERIZON PATENT AND LICENSING INC.
To: TEKLA PEHR LLC
Reel/Frame 029368/0460 →
RELEASE OF SECURITY INTEREST Recorded Oct 24, 2012
From: SILICON VALLEY BANK
To: NETWORK SECURITY TECHNOLOGIES, INC.
Reel/Frame 029181/0475 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: MCI COMMUNICATIONS SERVICES, INC.
To: VERIZON PATENT AND LICENSING INC.
Reel/Frame 028968/0437 →
MERGER Recorded Feb 1, 2012
From: NETWORK SECURITY TECHNOLOGIES, INC.
To: MCI COMMUNICATIONS SERVICES, INC.
Reel/Frame 027630/0403 →
SECURITY AGREEMENT Recorded Aug 4, 2004
From: NETWORK SECURITY TECHNOLOGIES, INC.
To: SILICON VALLEY BANK
Reel/Frame 015649/0249 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2003
From: WALNOCK, MATTHEW; HARVEY, ELAINE
To: NETWORK SECURITY TECHNOLOGIES, INC.
Reel/Frame 013940/0325 →