Electronic musical apparatus for recording and reproducing...

Details Electronic musical apparatus for recording and reproducing... Electronic musical apparatus for recording and reproducing...

2009-01-16

2011-12-20

Hewitt, II, Calvin L (Department: 3685)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S051000, C705S057000, C380S201000, C380S202000, C084S645000

Reexamination Certificate

active

08082212

ABSTRACT:
In an electronic musical apparatus, a media ID (MD1, MD2, MD3, MD4, MD5) is associated with each recording media of a memory card8, hard disk device10, flash memory ROM11, CD-ROM12and internet15. Each media ID is encrypted to be recorded on a different position in a ROM2. Upon reading a music content, the media ID of the corresponding recording media is decoded to decode the music content based upon the media ID and the secret key, and then, the resultant is temporarily stored in a RAM3. Upon writing a music content, it is encrypted based upon the media ID corresponding to a recording media and the secret key, and the content in the RAM3is deleted. This makes cryptanalysis hard to thereby enhance a protection level of a music content in an electronic musical apparatus.

REFERENCES:
patent: 5892900 (1999-04-01), Ginter et al.
patent: 6025552 (2000-02-01), Mukaino et al.
patent: 6480607 (2002-11-01), Kori et al.
patent: 6701436 (2004-03-01), Hirai
patent: 6745166 (2004-06-01), Sugahara et al.
patent: 6834346 (2004-12-01), Ishibashi et al.
patent: 6834348 (2004-12-01), Tagawa et al.
patent: 6934847 (2005-08-01), Ishizaka
patent: 6971022 (2005-11-01), Katta et al.
patent: 6993135 (2006-01-01), Ishibashi
patent: 6999948 (2006-02-01), Hatanaka et al.
patent: 7469345 (2008-12-01), Shimada et al.
patent: 7548887 (2009-06-01), Ogino et al.
patent: 2001/0032088 (2001-10-01), Utsumi et al.
patent: 2001/0033658 (2001-10-01), Yoshida et al.
patent: 2001/0053943 (2001-12-01), Kaneko et al.
patent: 2002/0015494 (2002-02-01), Nagai et al.
patent: 2002/0154779 (2002-10-01), Asano et al.
patent: 2002/0159592 (2002-10-01), Matsushima et al.
patent: 2002/0169971 (2002-11-01), Asano et al.
patent: 2003/0097340 (2003-05-01), Okamoto et al.
patent: 2003/0123670 (2003-07-01), Shimada et al.
patent: 2003/0131716 (2003-07-01), Aoki et al.
patent: 2004/0030909 (2004-02-01), Sako et al.
patent: 2004/0210539 (2004-10-01), Ikeda et al.
patent: 2006/0112284 (2006-05-01), Kato et al.
patent: 2008/0294562 (2008-11-01), Kasahara et al.
patent: 2009/0132832 (2009-05-01), Okamoto
patent: 1280149 (2003-01-01), None
patent: 11-339373 (1999-12-01), None
patent: 2000-209195 (2000-07-01), None
patent: 2001-216727 (2001-08-01), None
patent: 2001-297486 (2001-10-01), None
patent: 2002-049377 (2002-02-01), None
patent: 2003-208163 (2003-07-01), None
patent: 2004-062957 (2004-02-01), None
patent: 03/025930 (2003-03-01), None
Search report issued in corresponding European application No. 05101685.8-2212, dated Sep. 22, 2005.
Communication from corresponding European application No. 05101685.5-2212, dated May 15, 2007.
Office Action dated Mar. 29, 2011 issued in corresponding Japanese Patent Application No. 2005-072378. English translation provided.
Nichols, Randall K., ICSA Guide to Cryptography, Copyright 1999 by The McGraw-Hill Companies, Inc. on Nov. 16, 2009 in U.S. Appl. No. 11/079,553.
Office Action dated 12 October 201 issued in Japanese Patent Application No. 2005-072378, which claims priority from JP 2004-072004. English Translation provided.

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