IP Library Granted Patent US 7,620,997
Granted Patent B2
US 7,620,997 · App. 10/748,919 · Granted Nov 17, 2009

System and method for controlling network access in wireless environment

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,620,997
App. No.
10/748,919
Granted
Nov 17, 2009
Kind
B2
Abstract

When an authenticated wireless computer loses connectivity to a wireless access point of a network and roams to another access point, the wireless computer (e.g., a hypervisor in the computer) determines whether the new access point is authorized for secure communication and if so, releases access to secure data on the network through the new access point.

Claims (16)

1. A service comprising:

determining that a mobile computer has lost connectivity to a first access point of a network;

when the mobile computer roams to a second access point of the network, determining whether the second access point is authorized for first secure communication and if so,

releasing access of the computer to first secure data on the network through the second access point, and otherwise releasing access of the computer to data other than the first secure data on the network through the second access point, wherein the mobile computer is authenticated at the first access point, prior to losing connectivity thereto, wherein releasing access to secure data on the network through the second access point comprises releasing access to a set of secure data which differs from the secure data released when the mobile computer is connected to the first access point.

2. The service of claim 1 , wherein the service is undertaken by the mobile computer.

3. The service of claim 2 , wherein the service is undertaken by a hypervisor in the mobile computer.

4. The service of claim 1 , wherein the service is undertaken by at least one network resource outside the mobile computer.

5. A system including a mobile computer and a network including secure data, comprising:

means for determining that the mobile computer has lost connectivity to a first access point of the network;

means for determining whether a second access point of the network to which the mobile computer has roamed is authorized for secure communication; and

means for permitting the mobile computer to access secure data on the network through the second access point if the second access point is authorized for secure communication, and otherwise granting access to the computer to data other than the secure data through the second access point, wherein the means are embodied by a hypervisor in the mobile computer.

6. The system of claim 5 , wherein the mobile computer is authenticated at the first access point, prior to losing connectivity thereto.

7. A method comprising:

establishing communication between a mobile computer and a network through an access point; and

based on at least one of: a location, or an identification, of the access point, either granting the computer access to secure assets in the network or granting the computer access to other than the secure assets in the network, wherein the act of selectively granting is undertaken by a hypervisor in the mobile computer.

8. The method of claim 7 , wherein the computer is configured to access a first set of network assets when communicating through a first access point and a second set of network assets when communicating through a second access point.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 069870/0670 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2015
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 037160/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2005
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: LENOVO (SINGAPORE) PTE LTD.
Reel/Frame 016891/0507 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2004
From: CHALLENER, DAVID CARROLL; CROMER, DARYL CARVIS; LOCKER, HOWRAD JEFFREY; OVIES, HERNANDO; SPRINGFIELD, RANDALL SCOTT
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 014722/0243 →