Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2004-01-16
2009-08-25
Abrishamkar, Kaveh (Department: 2431)
Cryptography
Video cryptography
Video electric signal modification
C380S239000, C380S242000, C380S281000, C380S284000, C380S212000, C713S176000, C726S027000, C726S020000
Reexamination Certificate
active
07580523
ABSTRACT:
A host receiver and a client receiver are operatively in a direct broadcast satellite system. Program materials received by the host receiver from the direct broadcast satellite system are decrypted by the host receiver. The decrypted program materials are then encrypted at the host receiver using a copy protection key. The copy protection key is encrypted at the host receiver using a host-client pairing key shared between the host receiver and client receiver. The encrypted program materials and the encrypted copy protection key are transferred from the host receiver to the client receiver. The transferred copy protection key is decrypted at the client receiver using the host-client pairing key. The transferred program materials are then decrypted at the client receiver using the decrypted copy protection key.
REFERENCES:
patent: 4613901 (1986-09-01), Gilhousen et al.
patent: 4633309 (1986-12-01), Li et al.
patent: 4675732 (1987-06-01), Oleson
patent: 4694490 (1987-09-01), Harvey et al.
patent: 4866769 (1989-09-01), Karp
patent: 4866787 (1989-09-01), Olesen
patent: 5033084 (1991-07-01), Beecher
patent: 5132992 (1992-07-01), Yurt et al.
patent: 5168353 (1992-12-01), Walker et al.
patent: 5172413 (1992-12-01), Bradley et al.
patent: 5199066 (1993-03-01), Logan et al.
patent: 5301245 (1994-04-01), Endoh
patent: 5301352 (1994-04-01), Nakagawa et al.
patent: 5335277 (1994-08-01), Harvey et al.
patent: 5357276 (1994-10-01), Banker et al.
patent: 5371551 (1994-12-01), Logan et al.
patent: 5386587 (1995-01-01), Yuzawa
patent: 5396293 (1995-03-01), Shellard
patent: 5421031 (1995-05-01), De Bey
patent: 5438423 (1995-08-01), Lynch et al.
patent: 5440336 (1995-08-01), Buhro et al.
patent: 5481609 (1996-01-01), Cohen et al.
patent: 5495531 (1996-02-01), Smiedt
patent: 5506902 (1996-04-01), Kubota
patent: 5557541 (1996-09-01), Schulhof et al.
patent: 5565805 (1996-10-01), Nakagawa et al.
patent: 5583937 (1996-12-01), Ulrich et al.
patent: 5586264 (1996-12-01), Belknap et al.
patent: 5592551 (1997-01-01), Lett et al.
patent: 5592651 (1997-01-01), Rackman
patent: 5594491 (1997-01-01), Hodge et al.
patent: 5619247 (1997-04-01), Russo
patent: 5640453 (1997-06-01), Schuchman et al.
patent: 5642418 (1997-06-01), Farris et al.
patent: 5663896 (1997-09-01), Aucsmith
patent: 5675390 (1997-10-01), Schindler et al.
patent: 5677895 (1997-10-01), Mankovitz
patent: 5701383 (1997-12-01), Russo et al.
patent: 5701582 (1997-12-01), De Bey
patent: 5710970 (1998-01-01), Walters et al.
patent: 5715315 (1998-02-01), Handelman
patent: 5715403 (1998-02-01), Stefik
patent: 5721829 (1998-02-01), Dunn et al.
patent: 5724646 (1998-03-01), Ganek et al.
patent: 5729280 (1998-03-01), Inoue et al.
patent: 5734853 (1998-03-01), Hendricks et al.
patent: 5748732 (1998-05-01), Le Berre et al.
patent: 5761302 (1998-06-01), Park
patent: 5764762 (1998-06-01), Kazmierczak et al.
patent: 5784095 (1998-07-01), Robbins et al.
patent: 5790663 (1998-08-01), Lee et al.
patent: 5790783 (1998-08-01), Lee et al.
patent: 5793971 (1998-08-01), Fujita et al.
patent: 5805699 (1998-09-01), Akiyama et al.
patent: 5826165 (1998-10-01), Echeita et al.
patent: 5831664 (1998-11-01), Wharton et al.
patent: 5845240 (1998-12-01), Fielder
patent: 5848158 (1998-12-01), Saito et al.
patent: 5850218 (1998-12-01), LaJoie et al.
patent: 5864747 (1999-01-01), Clark et al.
patent: 5867207 (1999-02-01), Chaney et al.
patent: 5899582 (1999-05-01), DuLac
patent: 5912969 (1999-06-01), Sasamoto et al.
patent: 5914941 (1999-06-01), Janky
patent: 5926205 (1999-07-01), Krause et al.
patent: 5930215 (1999-07-01), Fite et al.
patent: 5933500 (1999-08-01), Blatter et al.
patent: 5936660 (1999-08-01), Gurantz
patent: 5937067 (1999-08-01), Thatcher et al.
patent: 5953418 (1999-09-01), Bock et al.
patent: 5966186 (1999-10-01), Shigihara et al.
patent: 5973756 (1999-10-01), Erlin
patent: 5978649 (1999-11-01), Kahn
patent: 5999628 (1999-12-01), Chan
patent: 5999629 (1999-12-01), Heer et al.
patent: 6005937 (1999-12-01), Lee
patent: 6011511 (2000-01-01), Chuong et al.
patent: 6025314 (2000-02-01), Nitsch et al.
patent: 6025868 (2000-02-01), Russo
patent: 6055566 (2000-04-01), Kikinis
patent: 6061451 (2000-05-01), Muratani et al.
patent: 6061452 (2000-05-01), Suzuki
patent: 6069647 (2000-05-01), Sullivan et al.
patent: 6072873 (2000-06-01), Bewick
patent: 6072982 (2000-06-01), Haddad
patent: 6075330 (2000-06-01), Terk
patent: 6091883 (2000-07-01), Artigalas et al.
patent: 6097441 (2000-08-01), Allport
patent: 6105134 (2000-08-01), Pinder et al.
patent: 6144400 (2000-11-01), Ebisawa
patent: 6148081 (2000-11-01), Szymanski et al.
patent: 6154206 (2000-11-01), Ludtke
patent: 6157719 (2000-12-01), Wasilewski et al.
patent: 6157949 (2000-12-01), Cheng et al.
patent: 6169879 (2001-01-01), Perlman
patent: 6202211 (2001-03-01), Williams, Jr.
patent: 6229895 (2001-05-01), Son et al.
patent: 6240401 (2001-05-01), Oren et al.
patent: 6263504 (2001-07-01), Ebisawa
patent: 6266481 (2001-07-01), Lee et al.
patent: 6286142 (2001-09-01), Ehreth
patent: 6288716 (2001-09-01), Humpleman et al.
patent: 6289455 (2001-09-01), Kocher et al.
patent: 6317883 (2001-11-01), Marics
patent: 6317884 (2001-11-01), Eames et al.
patent: 6370688 (2002-04-01), Hejna, Jr.
patent: 6381747 (2002-04-01), Wonfor et al.
patent: 6398245 (2002-06-01), Gruse et al.
patent: 6405372 (2002-06-01), Kim et al.
patent: 6415031 (2002-07-01), Colligan et al.
patent: 6437836 (2002-08-01), Huang et al.
patent: 6456985 (2002-09-01), Ohtsuka
patent: 6466671 (2002-10-01), Maillard et al.
patent: 6466921 (2002-10-01), Cordery et al.
patent: 6473858 (2002-10-01), Shimomura et al.
patent: 6476825 (2002-11-01), Croy et al.
patent: 6480667 (2002-11-01), O'Connor
patent: 6487663 (2002-11-01), Jaisimha et al.
patent: 6487722 (2002-11-01), Okura et al.
patent: 6496980 (2002-12-01), Tillman et al.
patent: 6502139 (2002-12-01), Birk et al.
patent: 6510519 (2003-01-01), Wasilewski et al.
patent: 6516465 (2003-02-01), Paskins
patent: 6519693 (2003-02-01), De Bey
patent: 6519772 (2003-02-01), Bopardikar
patent: 6530085 (2003-03-01), Perlman
patent: 6542870 (2003-04-01), Matsumoto
patent: 6550011 (2003-04-01), Sims, III
patent: 6555580 (2003-04-01), Haning et al.
patent: 6560340 (2003-05-01), Akins et al.
patent: 6574609 (2003-06-01), Downs et al.
patent: 6588017 (2003-07-01), Calderone
patent: 6611812 (2003-08-01), Hurtado et al.
patent: 6637027 (2003-10-01), Breslauer et al.
patent: 6654547 (2003-11-01), Maeda et al.
patent: 6681326 (2004-01-01), Son et al.
patent: 6697489 (2004-02-01), Candelore
patent: 6741834 (2004-05-01), Godwin
patent: 6745245 (2004-06-01), Carpenter
patent: 6748080 (2004-06-01), Russ et al.
patent: 6772434 (2004-08-01), Godwin
patent: 6804357 (2004-10-01), Ikonen et al.
patent: 6853728 (2005-02-01), Kahn et al.
patent: 6889208 (2005-05-01), Okabe et al.
patent: 6904522 (2005-06-01), Benardeau et al.
patent: 6934963 (2005-08-01), Reynolds et al.
patent: 6993499 (2006-01-01), Gagnon et al.
patent: 7035827 (2006-04-01), Ezaki
patent: 7093295 (2006-08-01), Saito
patent: 7177911 (2007-02-01), deCarmo
patent: 7191155 (2007-03-01), Maruyama et al.
patent: 7191335 (2007-03-01), Maillard
patent: 7228439 (2007-06-01), Sasselli
patent: 7403618 (2008-07-01), Van Rijnsoever et al.
patent: 7409562 (2008-08-01), Kahn et al.
patent: 2001/0001876 (2001-05-01), Morgan et al.
patent: 2001/0017920 (2001-08-01), Son et al.
patent: 2001/0046299 (2001-11-01), Wasilewski et al.
patent: 2001/0053979 (2001-12-01), Kori
patent: 2002/0001386 (2002-01-01), Akiyama
patent: 2002/0021805 (2002-02-01), Schumann et al.
patent: 2002/0023219 (2002-02-01), Treffers et al.
patent: 2002/0048367 (2002-04-01), Maillard
patent: 2002/0056112 (2002-05-01), Dureau et al.
patent: 2002/0094084 (2002-07-01), Wasilewski et al.
patent: 2002/0101991 (2002-08-01), Bacon et al.
patent: 2002/0112243 (2002-08-01), Hunter et al.
patent: 2002/0116705 (2002-08-01), Perlman et al.
patent: 2002/0162104 (2002-10-01), Raike et al.
patent: 2002/0170054 (2002-11-01), Kudelski et al.
patent: 2002/0170072 (2002-11-01), Lundbald et al.
patent: 2002/0196374 (2002-12-01), Barry et al.
Curren Christopher P.
Gagnon Gregory J.
James Thomas H.
Kahn Raynold M.
Abrishamkar Kaveh
The DIRECTV Group Inc.
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