Title:
携帯無線端末及びそのセキュリティシステム
Document Type and Number:
Japanese Patent JP4390808
Kind Code:
B2
Abstract:
The present invention relates to a portable wireless terminal, and in particular, a portable wireless terminal such as a cellular phone, etc., and its security system that can reliably prevent, by remote control, improper use of the portable wireless terminal by a third party when it is lost or stolen. The portable wireless terminal that uploads backup data to a center by remote control from the center via a wireless network includes: a data access control section 1-1 that, in response to an instructions from the center, prohibits access to the backup data retained by a portable wireless terminal or deletes the backup data; an encryption section 1-5 that encrypts the backup data by using a public key notified from the center or a public key owned by the portable wireless terminal itself in response to instructions from the center; and a data transmission section 1-2 to 1-4 that transmits the backup data split into a plurality of data fragments on a plurality of communication paths to the center according to transmission priority of the backup data that is notified from the center or owned by the portable wireless terminal itself.
Inventors:
Takashi Kaneko
Tadaaki Tanaka
Nagasaka Masaaki
Keita Kobayashi
Tadaaki Tanaka
Nagasaka Masaaki
Keita Kobayashi
Application Number:
JP2006544730A
Publication Date:
December 24, 2009
Filing Date:
November 17, 2004
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04M11/00; H04W8/24; H04W8/22; H04W24/04; H04W88/02
Domestic Patent References:
| JP2003319453A | ||||
| JP2000270376A | ||||
| JP2004040457A | ||||
| JP2002051377A | ||||
| JP10290193A | ||||
| JP2004032402A | ||||
| JP2003132291A | ||||
| JP2004112478A | ||||
| JP7193865A | ||||
| JP2004274310A | ||||
| JP2004304716A | ||||
| JP2004228659A | ||||
| JP2005039587A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Kurachi Yasuyuki
Jun Tsuruta
Kurachi Yasuyuki