Portable information terminal and data protecting method

Details Portable information terminal and data protecting method Portable information terminal and data protecting method

2011-04-05

2011-04-05

Arani, Taghi T. (Department: 2438)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C713S168000, C380S247000, C709S223000

Reexamination Certificate

active

07921305

ABSTRACT:
Even if a portable information terminal is lost or stolen, a third party is prevented from illegally browsing data stored in the portable information terminal. When a control signal is received through wireless communication part and when the received control signal is an instruction signal to execute an encryption process on plaintext data stored in data memory, the plaintext data is encrypted and encrypted data is stored in the data memory. Thereafter, erasing part erases the plaintext data stored in the data memory.

REFERENCES:
patent: 5737415 (1998-04-01), Akiyama et al.
patent: 6658566 (2003-12-01), Hazard
patent: 6725379 (2004-04-01), Dailey
patent: 2002/0013772 (2002-01-01), Peinado
patent: 2002/0176580 (2002-11-01), Horiuchi et al.
patent: 2002/0184154 (2002-12-01), Hori et al.
patent: 2005/0027844 (2005-02-01), Hariprasad et al.
patent: 1 501 330 (2005-01-01), None
patent: 09 215057 (1997-08-01), None
patent: 10-065662 (1998-03-01), None
patent: 2003-143131 (2003-05-01), None
patent: 2005-039864 (2005-02-01), None
patent: WO 98/27494 (1998-06-01), None
Chinese Patent Office Action with English translation, Application No. 200610008867.7. NTT Docomo,Inc. Sep. 12, 2008 (Filed with IDS on Nov. 28, 2008).

Affiliated with

Also associated with

Rating

Portable information terminal and data protecting method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable information terminal and data protecting method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable information terminal and data protecting method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2717706