Kabushiki Kaisha Toshiba

Time Warner Entertainment Company, L.p.

Other

Matsushita Electric Industrial Co., Ltd.

Toshiba Audio-video Engineering Co.

Hideki Mimura

Shinichi Kikuchi

Kazuhiko Taira

Hideo Ando

Yuji Ito

Tomoaki Kurano

Tetsuya Kitamura

Takeshi Hagio

Yasufumi Tsumagari

Hitoshi Otomo

Hiroaki Unno

Yuji Nagai

Hiroyuki Sakamoto

Christopher J Cookson

Andrew Drusin Rosen

Greg B Thagard

Shigeru Todokoro

Shinichi Matsukawa

Jay Yogeshwar

Sheau-Bao Ng

Faramarz Azadegan

Hisashi Yamada

Yuzo Tamada

Tooru Kamibayashi

Teiichi Ichikawa

Yoichiro Yamagata

Hirohisa Nishiwaki

Taku Kato

Tadashi Kojima

Akira Yamauchi

Mikhail Tsinberg

Shuichi Hisatomi

Sigeru Todokoro

Fumio Izawa

Kouya Tochikubo

Mikio Kakizaki

Akio Tanaka

Takahiro Seita

Junichi Uota

Takaaki Suyama

Toshiaki Shirasuna

David Lehmann

Tomoko Ono

Tae Aoki

Masatoshi Nakai

Masafumi Tamura

Mitsuyuki Nozaki

Takeo Arafune

Masayuki Kozuka

Yoshihisa Fukushima

Kazuhiro Tsuga

Toshimitsu Kaneko

Tomoo Yamakage

Hideaki Sato

Hiroto Nakai

Yasuhiro Ishibashi

Tadashi Kobayashi

Haruhiko Toyama

Hideki Takahashi

Toshinari Takahashi

Seiichi Nakamura

Toshinori Odaka

Eita Shuto

Takero Kobayashi

Masaki Nakagawa

Yumiko Taga

Minoru Ohta

Masaru Sakurai

Shin-ichiro Koto

Seiji Miyata

Hitoshi Olomo

Ilideo Ando

Takahiro Scita

Shin-Ichiro Koto

According to one embodiment, a storage system includes a host device, 2 storing medium. The secure storing medium includes: a memory provided with a protected first storing region which stores secret information sent from the host device, and a second storing region which stores encoded contents; and a controller which carries out authentication processing for accessing the first storing region. The host device and the secure storing medium produce a bus key which is shared only by the host device and the secure storing medium by authentication processing, and which is used for encoding processing when information of the first storing region is sent and received between the host device and the secure storing medium. The host device has the capability to request the secure storing medium to send a status.

Storage system in which information is prevented

A digital content protection method includes distributing, together with an encrypted content, an encrypted protected program key, a protected content key, and a protected code including an individual instruction code, at least some elements of which are designed according to a unique operation code specification for each content player or for each content player group.

Protection method, decryption method, player, storage medium, and encryption apparatus of digital content

According to one embodiment, a storage system includes a host device and a secure storage. The host device and the secure storage produce a bus key which is shared only by the host device and the secure storage by authentication processing, and which is used for encoding processing. The host device produces a message authentication code including a message which can be stored in the secure storage based on the bus key, and sends the produced message authentication code to the secure storage. The secure storage stores the message included in the message authentication code in accordance with instructions of the host device. The host device verifies whether the message stored in the secure storage is intended contents.

Storage system in which fictitious information is prevented

According to one embodiment, a storage system includes a host device, a secure storing medium, and a non-secure storing medium. The secure storing medium includes a memory provided with a protected first storing region which stores secret information sent from the host device, and a second storing region which stores encoded contents, and a controller which carries out authentication processing for accessing the first storing region. The host device and the secure storing medium produce a bus key which is shared only by the host device and the secure storing medium by authentication processing, and which is used for encoding processing when information of the first storing region is sent and received between the host device and the secure storing medium. The host device has the capability to request the secure storing medium to send a status.

On an optical disk, video object sets (VTST_VOBS) to be reproduced and video title set information (VTSI) serving as management information on the video object sets have been stored. In each video object set (VTST_VOBS), many data cells, each containing video, audio, and sub-picture data, are arranged. Management information on programs chains, which are combinations of programs to be reproduced one after another, has been written in a video title set PGC table (VTS_PGCIT). By referring to the program chain table (VTS_PGCIT) according to the user's input, the playback order of program chains can be changed, enabling the program chains to be reproduced one after another in various modes.

Recording medium capable of interactive reproducing and reproduction system for the same

Growing community of inventors

Yokohama, Japan

Hideki Mimura