The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2008
Filed:
Nov. 14, 2001
David Carroll Challener, Raleigh, NC (US);
Ernest Nelson Mandese, Durham, NC (US);
Hernando Ovies, Cary, NC (US);
James Peter Ward, Raleigh, NC (US);
David Carroll Challener, Raleigh, NC (US);
Ernest Nelson Mandese, Durham, NC (US);
Hernando Ovies, Cary, NC (US);
James Peter Ward, Raleigh, NC (US);
Lenovo Singapore Pte Ltd., Singapore, SG;
Abstract
Access to secure data through a portable computing system is provided only when a timer within the system is running. The timer is reset with the portable system connected to a base system, either directly, as by a cable, or indirectly, as through a telephone network. In an initialization process, the portable and base systems exchange data, such as public cryptographic keys, which are later used to confirm that the portable system is connected to the same base system. In one embodiment, the initialization process also includes storing a password transmitted from the portable system within the base system, with this password later being required within the reset process.