Information terminal

Cryptography – Key management

Reexamination Certificate

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C726S027000

Reexamination Certificate

active

08064603

ABSTRACT:
When content owned by a source device are played back in a rendering device, a content key is transferred from the source device to the rendering device via a secure session every time playback is carried out. Then, encoded content are decoded and played back to be outputted by using the transferred content key so as to discard the content key after the end of playback.

REFERENCES:
patent: 5758069 (1998-05-01), Olsen
patent: 5925127 (1999-07-01), Ahmad
patent: 5982889 (1999-11-01), DeMont
patent: 5982891 (1999-11-01), Ginter et al.
patent: 6141754 (2000-10-01), Choy
patent: 6144959 (2000-11-01), Anderson et al.
patent: 6170014 (2001-01-01), Darago et al.
patent: 6173403 (2001-01-01), DeMont
patent: 6219652 (2001-04-01), Carter et al.
patent: 6282573 (2001-08-01), Darago et al.
patent: 6343280 (2002-01-01), Clark
patent: 6581044 (2003-06-01), Alur
patent: 6606664 (2003-08-01), Darago et al.
patent: 6718470 (2004-04-01), Adams
patent: 7024561 (2006-04-01), Inoha et al.
patent: 7191343 (2007-03-01), Tuoriniemi et al.
patent: 7203966 (2007-04-01), Abburi et al.
patent: 7260557 (2007-08-01), Chavez
patent: 7263497 (2007-08-01), Wiser et al.
patent: 7266815 (2007-09-01), Butt et al.
patent: 7346170 (2008-03-01), Asano et al.
patent: 7392420 (2008-06-01), Butt et al.
patent: 7415439 (2008-08-01), Kontio et al.
patent: 7487363 (2009-02-01), Alve et al.
patent: 7487547 (2009-02-01), Nakai et al.
patent: 7512798 (2009-03-01), Cahill et al.
patent: 7571143 (2009-08-01), Circenis et al.
patent: 7780523 (2010-08-01), Baerlocher et al.
patent: 7788181 (2010-08-01), Ben-Menahem et al.
patent: 7814551 (2010-10-01), Darweesh et al.
patent: 7841939 (2010-11-01), Baerlocher et al.
patent: 7849100 (2010-12-01), Brown et al.
patent: 7862430 (2011-01-01), Baerlocher et al.
patent: 7905778 (2011-03-01), Breckner et al.
patent: 7945690 (2011-05-01), Daigle et al.
patent: 7963847 (2011-06-01), Baerlocher
patent: 2003/0023564 (2003-01-01), Padhye et al.
patent: 2003/0167392 (2003-09-01), Fransdonk
patent: 2004/0128252 (2004-07-01), Shirai et al.
patent: 2004/0168077 (2004-08-01), Waxman et al.
patent: 2004/0243819 (2004-12-01), Bourne et al.
patent: 2005/0210249 (2005-09-01), Lee et al.
patent: 2005/0257074 (2005-11-01), Alkove et al.
patent: 2006/0018474 (2006-01-01), Hori et al.
patent: 2006/0021063 (2006-01-01), Hori
patent: 2006/0069652 (2006-03-01), Ebihara et al.
patent: 2006/0149683 (2006-07-01), Shimojima et al.
patent: 2006/0174110 (2006-08-01), Strom et al.
patent: 2006/0260923 (2006-11-01), Lee et al.
patent: 2007/0121942 (2007-05-01), Watanabe et al.
patent: 2007/0203839 (2007-08-01), Terauchi et al.
patent: 2008/0216177 (2008-09-01), Yokosato et al.
patent: 2009/0055935 (2009-02-01), Tsurukawa
patent: 02-260841 (1990-10-01), None
patent: 10-208388 (1998-08-01), None
patent: 2001-309332 (2001-11-01), None
patent: 2003-008563 (2003-01-01), None
patent: 2003-110541 (2003-04-01), None
patent: 2003-303137 (2003-10-01), None
patent: 2004-048180 (2004-02-01), None
patent: 2004-112042 (2004-04-01), None
patent: 2004-350150 (2004-12-01), None
patent: 2005-094481 (2005-04-01), None
Extended European Search Report dated Jul. 24, 2009 (6 pages), issued in counterpart European Application Serial No. 06016104.9.
U.S. Appl. No. 11/406,212, filed Apr. 18, 2006; T. Terauchi, et al entitled: Mobile Communication Terminal.
Related U.S. Appl. No. 11/497,732, filed Aug. 2, 2006, Title of Invention: Information Terminal, Inventors: Keiko Watanabe et al.
Japanese Office Action dated Apr. 21, 2009 (3 pages), and English translation thereof 5 pages) issued in counterpart Japanese Application No. 2005-343995.
K. Seki et al., “A Proposal of a New Distribution Scheme for Software Products,” Information Processing Society Research Report (93-IS-45), Japan, Information Processing Society of Japan. Jul. 20, 1993, vol. 93, No. 64, p. 19 to 28.

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