Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2001-12-13
2010-11-02
Elisca, Pierre E (Department: 3714)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S050000
Reexamination Certificate
active
07827109
ABSTRACT:
There are provided a digital content management apparatus which further embodies a digital content management apparatus used with a user terminal, and a system which protects the secrets of a digital content. The system and the apparatus are a real time operating system using a micro-kernel, which is incorporated in the digital content management apparatus as an interruption process having high priority. When a user uses the digital content, whether there is an illegitimate usage or not, is watched by interrupting the usage process. In the case where illegitimate usage is carried out, a warning is given or the usage is stopped. The decryption/re-encryption functions of the digital content management apparatus having the decryption/re-encryption functions are not restricted to the inside of the user apparatus. By providing the decryption/re-encryption functions between the networks, the exchange of secret information between different networks is secured. By using this apparatus for converting a crypt algorithm, information exchange is made possible between systems which adopt different algorithms.
REFERENCES:
patent: 4104721 (1978-08-01), Markstein et al.
patent: 4168396 (1979-09-01), Best
patent: 4225884 (1980-09-01), Block et al.
patent: 4278337 (1981-07-01), Mashimo
patent: 4278837 (1981-07-01), Best
patent: 4352952 (1982-10-01), Boone et al.
patent: 4386233 (1983-05-01), Smid et al.
patent: 4423287 (1983-12-01), Zeidler
patent: 4465901 (1984-08-01), Best
patent: 4527195 (1985-07-01), Cheung
patent: 4558176 (1985-12-01), Arnold et al.
patent: 4567512 (1986-01-01), Abraham
patent: 4588991 (1986-05-01), Atalla
patent: 4613901 (1986-09-01), Gilhousen et al.
patent: 4623918 (1986-11-01), Chomet
patent: 4709266 (1987-11-01), Hanas et al.
patent: 4710955 (1987-12-01), Kauffman
patent: 4736422 (1988-04-01), Mason
patent: 4751732 (1988-06-01), Kamitake
patent: 4757534 (1988-07-01), Matyas et al.
patent: 4759062 (1988-07-01), Traub et al.
patent: 4791565 (1988-12-01), Dunham
patent: 4799156 (1989-01-01), Shavit et al.
patent: 4827508 (1989-05-01), Shear
patent: 4829569 (1989-05-01), Seth-Smith et al.
patent: 4850017 (1989-07-01), Matyas et al.
patent: 4852154 (1989-07-01), Lewis et al.
patent: 4862268 (1989-08-01), Campbell et al.
patent: 4864494 (1989-09-01), Kobus, Jr.
patent: 4864614 (1989-09-01), Crowther
patent: 4864615 (1989-09-01), Bennett et al.
patent: 4890319 (1989-12-01), Seth-Smith et al.
patent: 4890321 (1989-12-01), Seth-Smith et al.
patent: 4905277 (1990-02-01), Nakamura
patent: RE33189 (1990-03-01), Lee et al.
patent: 4916737 (1990-04-01), Chomet et al.
patent: 4919545 (1990-04-01), Yu
patent: 4977594 (1990-12-01), Shear
patent: 4995080 (1991-02-01), Bestler et al.
patent: 5008853 (1991-04-01), Bly et al.
patent: 5029207 (1991-07-01), Gammie
patent: 5036461 (1991-07-01), Elliott et al.
patent: 5046093 (1991-09-01), Wachob
patent: 5060262 (1991-10-01), Bevins, Jr et al.
patent: 5077665 (1991-12-01), Silverman et al.
patent: 5083309 (1992-01-01), Beysson
patent: 5091938 (1992-02-01), Thompson et al.
patent: 5124984 (1992-06-01), Engel
patent: 5126566 (1992-06-01), Shimada
patent: 5138659 (1992-08-01), Kelkar et al.
patent: 5142579 (1992-08-01), Anderson
patent: 5144663 (1992-09-01), Kudelski et al.
patent: 5146497 (1992-09-01), Bright
patent: 5155680 (1992-10-01), Wiedemer
patent: 5173939 (1992-12-01), Abadi et al.
patent: 5204961 (1993-04-01), Barlow
patent: 5220604 (1993-06-01), Gasser et al.
patent: 5224163 (1993-06-01), Gasser et al.
patent: 5227893 (1993-07-01), Ett
patent: 5235641 (1993-08-01), Nozawa et al.
patent: 5247575 (1993-09-01), Sprague et al.
patent: 5270773 (1993-12-01), Sklut et al.
patent: 5291598 (1994-03-01), Grundy
patent: 5301245 (1994-04-01), Endoh
patent: 5315657 (1994-05-01), Abadi et al.
patent: 5319705 (1994-06-01), Halter et al.
patent: 5323464 (1994-06-01), Elander et al.
patent: 5341425 (1994-08-01), Wasilewski et al.
patent: 5345508 (1994-09-01), Lynn et al.
patent: 5347581 (1994-09-01), Naccache et al.
patent: 5349662 (1994-09-01), Johnson et al.
patent: 5353351 (1994-10-01), Bartoli et al.
patent: 5369702 (1994-11-01), Shanton
patent: 5381480 (1995-01-01), Butter et al.
patent: 5392351 (1995-02-01), Hasebe et al.
patent: 5400403 (1995-03-01), Fahn et al.
patent: 5410602 (1995-04-01), Finkelstein et al.
patent: 5414772 (1995-05-01), Naccache et al.
patent: 5428606 (1995-06-01), Moskowitz
patent: 5428685 (1995-06-01), Kadooka
patent: 5438508 (1995-08-01), Wyman
patent: 5442706 (1995-08-01), Kung
patent: 5444779 (1995-08-01), Daniele et al.
patent: 5444782 (1995-08-01), Adams, Jr. et al.
patent: 5450493 (1995-09-01), Maher
patent: 5453601 (1995-09-01), Rosen
patent: 5455863 (1995-10-01), Brown et al.
patent: 5455941 (1995-10-01), Okuno et al.
patent: 5457746 (1995-10-01), Dolphin
patent: 5465299 (1995-11-01), Matsumoto et al.
patent: 5473691 (1995-12-01), Menezes et al.
patent: 5475757 (1995-12-01), Kelly
patent: 5475758 (1995-12-01), Kikuchi
patent: 5479514 (1995-12-01), Klonowski
patent: 5483658 (1996-01-01), Grube et al.
patent: 5485577 (1996-01-01), Eyer et al.
patent: 5495533 (1996-02-01), Linehan et al.
patent: 5497420 (1996-03-01), Garneau et al.
patent: 5499340 (1996-03-01), Barritz
patent: 5504816 (1996-04-01), Hamilton et al.
patent: 5504817 (1996-04-01), Shamir
patent: 5504818 (1996-04-01), Okano
patent: 5504933 (1996-04-01), Saito
patent: 5509073 (1996-04-01), Monnin
patent: 5509074 (1996-04-01), Choudhury et al.
patent: 5511121 (1996-04-01), Yacobi
patent: 5515441 (1996-05-01), Faucher
patent: 5515538 (1996-05-01), Kleiman
patent: 5532920 (1996-07-01), Hartrick et al.
patent: 5541994 (1996-07-01), Tomko et al.
patent: 5553145 (1996-09-01), Micali
patent: 5577121 (1996-11-01), Davis et al.
patent: 5579223 (1996-11-01), Raman
patent: 5581682 (1996-12-01), Anderson et al.
patent: 5584023 (1996-12-01), Hsu
patent: 5604800 (1997-02-01), Johnson et al.
patent: 5606609 (1997-02-01), Houser et al.
patent: 5606613 (1997-02-01), Lee et al.
patent: 5633934 (1997-05-01), Hember
patent: 5636277 (1997-06-01), Nagahama
patent: 5642418 (1997-06-01), Farris et al.
patent: 5646997 (1997-07-01), Barton
patent: 5646999 (1997-07-01), Saito
patent: 5651064 (1997-07-01), Newell
patent: 5666411 (1997-09-01), McCarty
patent: 5680452 (1997-10-01), Shanton
patent: 5689587 (1997-11-01), Bender
patent: 5706210 (1998-01-01), Kumano et al.
patent: 5715393 (1998-02-01), Naugle
patent: 5737416 (1998-04-01), Cooper et al.
patent: 5737536 (1998-04-01), Herrmann et al.
patent: 5740246 (1998-04-01), Saito
patent: 5745572 (1998-04-01), Press
patent: 5765152 (1998-06-01), Erickson
patent: 5765176 (1998-06-01), Bloomberg
patent: 5771383 (1998-06-01), Magee et al.
patent: 5794115 (1998-08-01), Saito
patent: 5812762 (1998-09-01), Kim
patent: 5818933 (1998-10-01), Kambe et al.
patent: 5825892 (1998-10-01), Braudaway
patent: 5832083 (1998-11-01), Iwayama et al.
patent: 5835601 (1998-11-01), Shimbo et al.
patent: 5835765 (1998-11-01), Matsumoto
patent: 5841886 (1998-11-01), Rhoads
patent: 5848155 (1998-12-01), Cox
patent: 5848158 (1998-12-01), Saito
patent: 5864683 (1999-01-01), Boebert et al.
patent: 5867579 (1999-02-01), Johnson et al.
patent: 5889868 (1999-03-01), Moskowitz et al.
patent: 5901339 (1999-05-01), Saito
patent: 5910987 (1999-06-01), Ginter et al.
patent: 5912969 (1999-06-01), Sasamoto et al.
patent: 5968175 (1999-10-01), Morishita et al.
patent: 5974141 (1999-10-01), Saito
patent: 5982891 (1999-11-01), Ginter et al.
patent: 5986690 (1999-11-01), Hendricks
patent: 6002772 (1999-12-01), Saito
patent: 6006328 (1999-12-01), Drake
patent: 6026430 (2000-02-01), Butman et al.
patent: 6044367 (2000-03-01), Wolff
patent: 6069952 (2000-05-01), Saito
patent: 6076077 (2000-06-01), Saito
patent: 6081794 (2000-06-01), Saito
patent: 6091835 (2000-07-01), Smithies et al.
patent: 6097816 (2000-08-01), Saito
patent: 6097818 (2000-08-01), Saito
patent: 6128605 (2000-10-01), Saito et al.
patent: 6160891 (2000-12-01), Al-Salqan
patent: 6182218 (2001-01-01), Saito
patent: 6209092 (2001-03-01), Linnartz
patent: 6226618 (2001-05-01), Downs et al.
patent: 6272635 (2001-08-01),
LandOfFree
Digital content management system and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital content management system and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital content management system and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4248658