Seiichi NAMBA


Managing Encryption and Key Publication Independently in Digital Rights Management Systems
Goichiro HANAOKA Kazuto OGAWA Itsuro MUROTA Go OHTAKE Keigo MAJIMA Seiichi GOHSHI Kimiyuki OYAMADA Seiichi NAMBA Hideki IMAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/01/01
Vol. E87-A  No. 1  pp. 160-172
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Applications
Keyword: 
digital rights management systemscopyright protectionsemantic securityadaptive attacks
 Summary | Full Text:PDF

Transport Structure for Integrated Services Digital Broadcasting
Naoki KAWAI Kouji OHSAKI Takeshi KIMURA Seiichi NAMBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/12/25
Vol. E77-B  No. 12  pp. 1474-1479
Type of Manuscript:  Special Section PAPER (Special Issue on Digital Broadcasting Technology)
Category: 
Keyword: 
digital broadcastingISDBpacket transmissionservice multiplex
 Summary | Full Text:PDF

A Study on Objective Picture Quality Scales for Pictures Digitally Encoded for Broadcast
Hiroyuki HAMADA Seiichi NAMBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/12/25
Vol. E77-B  No. 12  pp. 1480-1488
Type of Manuscript:  Special Section PAPER (Special Issue on Digital Broadcasting Technology)
Category: 
Keyword: 
picture quality assessmentobjective picture quality scalehuman visual characteristicsdigital coding
 Summary | Full Text:PDF