A digital rights management system for digital broadcasting based on home servers. - Yusei Nishimoto; Akitsugu Baba; Tatsuya Kurioka; Seiichi Namba (IEEE Trans. Broadcast., 2006)

Advanced Conditional Access System for Digital Broadcasting Receivers Using Metadata. - Yusei Nishimoto; Akitsugu Baba; Takeshi Kimura; Hiroyuki Imaizumi; Yoshihiro Fujita (IEEE Trans. Broadcast., 2007)

Seamless, Synchronous, and Supportive: Welcome to Hybridcast: An Advanced Hybrid Broadcast and Broadband System. - Akitsugu Baba; Kinji Matsumura; Shigeaki Mitsuya; Masaru Takechi; Hiroshi Fujisawa; Hiroyuki Hamada; Shunji Sunasaki; Hisakazu Katoh (IEEE Consumer Electron. Mag., 2012)

Hybridcast: A new media experience by integration of broadcasting and broadband. - Hisayuki Ohmata; Masaru Takechi; Shigeaki Mitsuya; Kazuhiro Otsuki; Akitsugu Baba; Kinji Matsumura; Keigo Majima; Shunji Sunasaki (Kaleidoscope, 2013)

System architecture for cross-channel application services on Hybridcast. - Hisayuki Ohmata; Hiroki Endo; Akitsugu Baba; Kinji Matsumura; Shunji Sunasaki; Kenjiro Kai (ICCE, 2015)