Use of a UUID as a time epoch to determine if the system...

Details Use of a UUID as a time epoch to determine if the system... Use of a UUID as a time epoch to determine if the system...

2007-02-27

2010-06-22

Patel, Nitin C (Department: 2116)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C713S502000

Reexamination Certificate

active

07743271

ABSTRACT:
A method, system and program are provided for determining if a system clock has been reset backwards in time by using a randomly generated set of bytes (such as a randomly generated or type 4 UUID) as a time epoch. By generating a time epoch at boot time and whenever the system clock is set back in time, an application can compare the time epoch value at an earlier point in its execution, with the current time epoch. If the time epoch values are different, the application will know that the system clock has been set back in time.

REFERENCES:
patent: 5117351 (1992-05-01), Miller
patent: 5870753 (1999-02-01), Chang et al.
patent: 5913217 (1999-06-01), Alger et al.
patent: 6003066 (1999-12-01), Ryan et al.
patent: 6104810 (2000-08-01), DeBellis et al.
patent: 6542907 (2003-04-01), Cohen
patent: 6987853 (2006-01-01), Uner
patent: 2002/0161994 (2002-10-01), Cromer et al.
patent: 2002/0184230 (2002-12-01), Merrells et al.
patent: 2005/0039068 (2005-02-01), Bailey et al.
The Open Group “Universal Unique Identifier” CDE 1.1: Remote Procedure Call 1997 (7 pages).
Compaq Computer Corporation, Dell Computer Corporation, Hewlett Packard Company, Intel Corporation, Microsoft Corporation “Network PC System Design Guidelines; A Reference for Designing Net PC Systems for Use with the Microsoft® Windows® and Windows NT® Operating Systems” Version 1.0b, Aug. 5, 1997 (152 pages).

Affiliated with

Also associated with

Rating

Use of a UUID as a time epoch to determine if the system... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of a UUID as a time epoch to determine if the system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of a UUID as a time epoch to determine if the system... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4180089