摘要:
The present invention provides systems and methods for secure transaction management and electronic rights protection. Electronic appliances such as computers equipped in accordance with the present invention help to ensure that information is accessed and used only in authorized ways, and maintain the integrity, availability, and/or confidentiality of the information. Such electronic appliances provide a distributed virtual distribution environment (VDE) that may enforce a secure chain of handling and control, for example, to control and/or meter or otherwise monitor use of electronically stored or disseminated information. Such a virtual distribution environment may be used to protect rights of various participants in electronic commerce and other electronic or electronic-facilitated transactions. Distributed and other operating systems, environments and architectures, such as, for example, those using tamper-resistant hardware-based processors, may establish security at each node. These techniques may be used to support an all-electronic information distribution, for example, the utilizing the "electronic higher".
摘要:
The present invention relates to an information processing device, an information processing method, a playback device, a playback method, and a recording medium, which enable the same information to be added to pictures corresponding to a basic stream and an extended stream to be used for display of a 3D image. At the time of encoding, Picture Timing SEI to be added to each picture of a Base view video stream, and Picture Timing SEI to be added to each picture of a Dependent view video stream are generated so that a Picture Timing SEI set to be added to the corresponding pictures represents the same content. The present invention can be applied to a playback device compatible with the BD-ROM standard.
摘要:
The present invention has an objective of realizing compatibility of an optical disk having a high resolution video signal recorded thereon and a system for reproducing the optical disk, with a conventional system for producing a standard resolution video signal. A high resolution video signal is divided by video division means into a main signal and a sub signal, and the main signal and the sub signal are MPEG-encoded. The stream of the main signal and the stream of the sub signal are divided into 1 GOP or more of frames. First interleave blocks 54 each including 1 GOP or more of the stream of the main signal and second interleave blocks 55 each including 1 GOP or more of the stream of the sub signal are recorded on an optical disk 1. A high resolution reproduction apparatus reproduces both the first and second interleave blocks to obtain a high resolution video output. A non-high quality picture reproduction apparatus reproduces only the first or second interleave blocks to obtain a standard resolution video output.
摘要:
Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g. a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.
摘要:
A method for providing a channel service is disclosed. In accordance with the present invention, a fixed information including a BUMF information, an SF information and a playlist information and a variable information including a clip information associated with a streaming data of a selected channel service are transmitted to a playback apparatus supporting a BD-J specification, thereby enabling a Blu-ray player incapable of playing the streaming data to provide viewers with the streaming data of the channel service.
摘要:
In a recording medium on which is recorded a multiplexed stream (231) including a plurality of first packets (V_main) constituting a first I-picture in a first video stream and a plurality of second packets (V_sub) constituting a second I-picture in a second video stream, information for identifying the first I-picture and information for identifying the second I-picture are recorded on the medium. A recording medium can thereby be obtained that enables the rapid detection, from a small amount of information, of a particular picture included in a stream such as a TS in which multiple content streams are multiplexed.
摘要:
The present invention provides a playback device for playing back a video stream, which includes metadata, picture data constituting a main view of a stereoscopic image, and picture data constituting a sub view of the stereoscopic image. The metadata is control information that defines an offset control to be applied when graphics data is overlaid with picture data constituting the main-view and picture data constituting the sub-view.
摘要:
The present invention provides a playback device for playing back a main-view video stream, a sub-view video stream, and a graphics stream in accordance with playlist information. The main-view video stream includes picture data constituting a main view of a stereoscopic image and the sub-view video stream includes picture data constituting a sub view of the stereoscopic image. The playlist information includes control information that defines an offset control to be applied when graphics data is overlaid with picture data.