Information security – Access control or authentication
Reexamination Certificate
2004-12-21
2010-06-22
Vu, Kimyen (Department: 2435)
Information security
Access control or authentication
C726S010000, C713S156000
Reexamination Certificate
active
07743406
ABSTRACT:
A system and method for securing data on a wireless device. A secured zone is defined by a boundary sensor. A data processing system is coupled to the boundary sensor and a wireless device. If the data processing system detects that the signal strength of the wireless device has fallen below a first predetermined value for longer than a second predetermined value, the data processing system deletes a digital certificate corresponding to the wireless device from memory. Thus, when the wireless device is reintroduced into the secured zone, in response to determining that a digital certificate corresponding to the wireless device is not stored in memory, the disabling module disables the wireless device from operation within the secured zone.
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Abedi Scott Sina
Abrams Roger Kenneth
Catherman Ryan Charles
Hoff James Patrick
Rutledge James Stephen
Dillon & Yudell LLP
International Business Machines - Corporation
Truvan Leynna T
Vu Kimyen
LandOfFree
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