Secure time element

Details Secure time element Secure time element

2009-04-21

2010-10-05

Pendleton, Brian T (Department: 2425)

Interactive video distribution systems

Access control or blocking

C365S194000

Reexamination Certificate

active

07810112

ABSTRACT:
Apparatus comprising a secure time element comprising a timing device that outputs to a plurality of delay devices, wherein the delay devices have characteristic delay times which are alterable as a result of a tampering attempt to tamper therewith, and wherein a characteristic delay time of one of the delay devices changes differently from another one of the delay devices as a result of the tampering attempt.

REFERENCES:
patent: 4882473 (1989-11-01), Bergeron et al.
patent: 4908502 (1990-03-01), Jackson
patent: 4933898 (1990-06-01), Gilberg et al.
patent: 5060261 (1991-10-01), Avenier et al.
patent: 5416423 (1995-05-01), De Borde
patent: 5550919 (1996-08-01), Kowalski
patent: 5592212 (1997-01-01), Handelman
patent: 5594227 (1997-01-01), Deo
patent: 5644638 (1997-07-01), Thiriet
patent: 5789733 (1998-08-01), Jachimowicz et al.
patent: 5816917 (1998-10-01), Kelmer et al.
patent: 5830068 (1998-11-01), Brenner et al.
patent: 5851149 (1998-12-01), Xidos et al.
patent: 5852290 (1998-12-01), Chaney
patent: 5871398 (1999-02-01), Schneier et al.
patent: 5880523 (1999-03-01), Candelore
patent: 5988510 (1999-11-01), Tuttle et al.
patent: 6004211 (1999-12-01), Brenner et al.
patent: 6068192 (2000-05-01), McCabe et al.
patent: 6089981 (2000-07-01), Brenner et al.
patent: 6099409 (2000-08-01), Brenner et al.
patent: 6152367 (2000-11-01), Kowalski
patent: 6193163 (2001-02-01), Fehrman et al.
patent: 6234898 (2001-05-01), Belamant et al.
patent: 6273339 (2001-08-01), Tuttle et al.
patent: 6276604 (2001-08-01), Proidl
patent: 6289455 (2001-09-01), Kocher et al.
patent: 6408388 (2002-06-01), Fischer
patent: 6481623 (2002-11-01), Grant et al.
patent: 6508709 (2003-01-01), Karmarkar
patent: 2001/0015382 (2001-08-01), Tiffany, III
patent: 2002/0036879 (2002-03-01), Vacherand et al.
patent: 2002/0147047 (2002-10-01), Letovsky et al.
patent: 2003/0026589 (2003-02-01), Barton et al.
patent: 2004/0166942 (2004-08-01), Muir
patent: 2005/0025312 (2005-02-01), Rijkaert et al.
patent: 2005/0084106 (2005-04-01), Venema et al.
patent: 2644584 (1990-09-01), None
patent: 99/39312 (1999-08-01), None
patent: 00/33456 (2000-06-01), None
English translation of WO00/33456, dated Jun. 8, 2000.
English translation of FR 2644584, dated Sep. 21, 1990.
Rousseau, L. “Secure Time in a Portable Device.”Proc. Of Gemplus Developer Conference(2001) pp. 1-8.

Affiliated with

Also associated with

Rating

Secure time element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secure time element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure time element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4241653