1
Katsuaki Matsumoto, Yoshifumi Saeki, Osamu Tazawa, Minoru Kosaka, Masaki Saito, Hiroki Uemura, Tetuo Kanazashi, Seiji Hashimoto, Tsuyoshi Fujiwara, Tsutomu Fukui, Saburo Takaoka, Tsutomu Suzuki, Shozo Nakamuta, Toshihiko Hosaka, Kuniaki Shiratori, Youichiro Tsuda, Takashi Morii, Sumitaka Matsumura, Morihisa Oka: Interactive CATV system. Pioneer Electronic Corporation, Fraser and Bogucki, January 13, 1981: US04245245 (278 worldwide citation)

A two-way CATV system having a substantial number of terminals incorporates a central processor and transmitter system which continually interrogates the terminals at high speed, monitoring changes of usage of premium programs and other data while also permitting central control of access to restric ...


2
Osamu Tazawa, Youichiro Tsuda: Method and apparatus for confirming transmission in bidirectional CATV system. Pioneer Electronic Corporation, Fraser and Bogucki, May 29, 1979: US04156847 (65 worldwide citation)

In a bidirectional CATV system, in which interrogations and commands to terminals for individual subscribers occur at high speed, the status of individual terminals is checked rapidly and reliably without interfering with other transmissions. In response to diagnostic commands from the head end unit ...


3
Masao Sugimoto, Osamu Tazawa, Takashi Okano, Munehiko Iwase: Arrangement for supplying audiovisual information to a subscriber terminal. Pioneer Corporation, McGinn & Gibb PLLC, March 13, 2003: US20030051250-A1

An arrangement for transmitting audiovisual information to one or more subscribers terminal from a server. Each subscriber terminal includes a storage unit. The server selects a transmission channel and/or transmission rate in accordance with a type of information to be distributed and/or other fact ...


4
Masao Sugimoto, Osamu Tazawa, Takashi Okano, Munehiko Iwase: System and apparatus for supplying audiovisual information to a subscriber terminal. Pioneer Corporation, McGinn & Gibb PLLC, March 13, 2003: US20030051251-A1

A system and apparatus for transmitting audio and video information to one or more subscribers terminal from a server. Each subscriber terminal includes a storage unit. The server selects an information distribution scheme (unicast or multicast) and sends the information to the subscriber terminal(s ...