Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2005-01-25
2005-01-25
Trammell, James P. (Department: 2161)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S001100
Reexamination Certificate
active
06847949
ABSTRACT:
Copy-protected content material is screened for an indication of the availability of an enhanced version of a screening system and forcing an upgrade to the advanced screening system by refusing to process the copy-protected content material until the upgrade is preformed. When security standards change, and corresponding security techniques are available for downloading to existing consumer devices, newly published content material will contain an indication to that effect. When the newly published content material is processed by an existing consumer device, the consumer device will detect this indication of an available update, and will prevent the processing of this newly published content material until the update is received. In this manner, a phased approach to enhanced security can be effected.
REFERENCES:
patent: 5181196 (1993-01-01), Matsueda
patent: 5418852 (1995-05-01), Itami et al.
patent: 5450489 (1995-09-01), Ostrover et al.
patent: 5822432 (1998-10-01), Moskowitz et al.
patent: 5845077 (1998-12-01), Fawcett
patent: 5886979 (1999-03-01), Moribe et al.
patent: 5905800 (1999-05-01), Moskowitz et al.
patent: 5940135 (1999-08-01), Petrovic et al.
patent: 6199204 (2001-03-01), Donohue
patent: 6330672 (2001-12-01), Shur
patent: 0716544 (1995-12-01), None
patent: 0791923 (1997-01-01), None
patent: 0801385 (1997-11-01), None
patent: WO 0193021 (2001-12-01), None
patent: WO9743761 (1997-05-01), None
http://www.sdmi.org/download/port_device_spec_part1.pdf , 1998 all pages.
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
Trammell James P.
Winter John M
LandOfFree
Indicator system for screening protected material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Indicator system for screening protected material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indicator system for screening protected material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3383979