Y
Yoshitomo Osawa
Researcher at Sony Broadcast & Professional Research Laboratories
Publications - 126
Citations - 2573
Yoshitomo Osawa is an academic researcher from Sony Broadcast & Professional Research Laboratories. The author has contributed to research in topics: Key (cryptography) & Encryption. The author has an hindex of 25, co-authored 126 publications receiving 2572 citations. Previous affiliations of Yoshitomo Osawa include Panasonic.
Papers
More filters
Journal ArticleDOI
A file system for continuous media
TL;DR: This work uses simulation to compare different design choices in the Continuous Media File System, CMFS, and addresses several interrelated design issues; real-time semantics fo sessions, disk layout, an acceptance test for new sessions, and disk scheduling policy.
Patent
Information Recording/Playback Apparatus and Method
TL;DR: In this article, a block key to encrypt block data is generated using an ATS (arrival time stamp) appended to each of TS (transport stream) packets included in a transport stream correspondingly to the arrival time of the TS packet.
Patent
Information processing system and method
TL;DR: In this article, the EKB has a structure in which a device constituting a tree leaf holds a leaf key and a limited node key, and a specific effective key block (EKB) is generated and distributed to a group specified by a specific node.
Patent
Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewith
Tomoyuki Asano,Yoshitomo Osawa +1 more
TL;DR: In this paper, a tree-structure key-distribution system for content encryption and decryption is proposed. But the system requires a special reading method for the secret information, which cannot be analyzed and which can be read only by a special reader.
Patent
A method and a system for transferring information using an encryption mode indicator
TL;DR: In this paper, a method and system for transferring information using an encryption mode indicator (EMI) is presented, in which data (e.g., representing an audio/visual work) can be transmitted from a source device to a sink device (receiving station) in a number of secure modes.