Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2007-03-13
2007-03-13
Cangialosi, Salvatore (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C380S047000
Reexamination Certificate
active
10127443
ABSTRACT:
An LA (License Agent) (or a license chip having the same function as the LA) is disposed in a PC (Personal Computer), a content distribution server, and a medium attached to a PD (Private Device or Portable Device) that use a license for electronic data. A content and electronic data are encrypted corresponding to a license. The encrypted content and electronic data are distributed among them. However, the license is distributed between the LAs as safe communication means. Thus, the license can be correctly managed and transferred.
REFERENCES:
patent: 5392351 (1995-02-01), Hasebe et al.
patent: 5555304 (1996-09-01), Hasebe et al.
patent: 5579222 (1996-11-01), Bains et al.
patent: 5636277 (1997-06-01), Nagahama
patent: 5737415 (1998-04-01), Akiyama et al.
patent: 5796824 (1998-08-01), Hasebe et al.
patent: 6049670 (2000-04-01), Okada et al.
patent: 6816842 (2004-11-01), Singh et al.
patent: 6915425 (2005-07-01), Xu et al.
patent: 2001/0037256 (2001-11-01), Yazawa
patent: 2002/0010681 (2002-01-01), Hillegass et al.
patent: 2002/0176580 (2002-11-01), Horiuchi et al.
patent: 2002/0183985 (2002-12-01), Hori et al.
patent: 2004/0179691 (2004-09-01), Hori et al.
patent: 1130492 (2001-09-01), None
patent: 1237324 (2002-09-01), None
patent: 5-257816 (1993-10-01), None
patent: 8-101867 (1996-04-01), None
patent: 8-106382 (1996-04-01), None
patent: 8-190529 (1996-07-01), None
patent: 2000-293439 (2000-10-01), None
patent: 2000293439 (2000-10-01), None
patent: 2001-175606 (2001-06-01), None
patent: 1/41356 (2001-06-01), None
“Development of Copyright Protective Multimedia Cards”, http://www.sdl.Hitachi.co.jp/Japanese/results/thema/contest/smmc/smmc.htm.
Keitaide-Music Technical Specification, Keitaide-Music Consortium, May 18, 2001, pp. 1-24.
Chiba Tetsuhiro
Hasebe Takayuki
Hatakeyama Takahisa
Maruyama Hidefumi
Cangialosi Salvatore
Fujitsu Limited
Staas & Halsey , LLP
LandOfFree
License transmitting and distributing system under offline... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with License transmitting and distributing system under offline..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and License transmitting and distributing system under offline... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3785018