摘要:
A revocation list is registered a public ROM area. The revocation list designates at least one electronic device in which use of the storage medium by the designated electronic device is to be revoked. A controller receives from the electronic device which attempts to access, identification information indicative of the electronic device, and checks whether identification information corresponding to the received identification information is contained in the revocation list, thereby determining whether or not use of the storage medium by the electronic device which attempts to access should be revoked.
摘要:
In a mutual authentication method for use between a recording apparatus which records copied contents on a recording medium having an arithmetic processing function, and the recording medium, the method includes a step of storing in the recording medium at least first information which depends on the recording medium, and second information which is to be shared by the recording apparatus in executing mutual authentication with the recording apparatus and depends on the recording medium, and a step of generating by the recording apparatus authentication information used in mutual authentication with the recording medium on the basis of the first information obtained from the recording medium, and executing mutual authentication between the recording apparatus and the recording medium using the generated authentication information and the second information.
摘要:
A signal processing method multiplexes/arranges digital data of a specific unit to form a predetermined unit, adds an error correction code to the predetermined unit to constitute an error correction coded block, replaces a part of the error correction coded block with specific data, and outputs the error correction coded block with the specific data being replaced to a transmission medium or a recording medium.
摘要:
An information recording method for recording content information in a recording medium having at least re-readable area, comprising converting, based on a first conversion rule φ1, first information including a first component for obtaining content control information, converting, based on a second conversion rule φ2, second information including a second component for obtaining the first information, and writing the converted first information and the converted second information into the re-recordable area of the recording medium.
摘要:
A signal processing method multiplexes/arranges digital data of a specific unit to form a predetermined unit, adds an error correction code to the predetermined unit to constitute an error correction coded block, replaces a part of the error correction coded block with specific data, and outputs the error correction coded block with the specific data being replaced to a transmission medium or a recording medium.
摘要:
A signal processing method multiplexes/arranges digital data of a specific unit to form a predetermined unit, adds an error correction code to the predetermined unit to constitute an error correction coded block, replaces a part of the error correction coded block with specific data, and outputs the error correction coded block with the specific data being replaced to a transmission medium or a recording medium.
摘要:
An information storage medium according to one embodiment of the present invention comprises a management area in which management information to manage content is recorded and a content area in which content managed on the basis of the management information is recorded. The content area includes an object area in which a plurality of objects are recorded, and a time map area in which a time map for reproducing these objects in a specified period on a timeline is recorded. The management area includes a play list area in which a play list for controlling the reproduction of a menu and a title each composed of the objects on the basis of the time map is recorded.
摘要:
Systems and methods for selecting information associated with a removable storage medium are disclosed. A multimedia presentation, such as a movie, is stored on the removable storage medium. A provider key is used to identify a particular content provider, such as a film studio, with the removable storage medium. Other media content associated with the same content provider is activated at least partially in response to a determination that the removable storage medium of the content provider has been inserted into an information storage medium, such as a computer or a DVD player.
摘要:
This invention has as its object to provide colorful menus, and improve interactiveness in content playback from an information storage medium. In an information storage medium including a management area and object areas, the object area stores an expanded video object (in HDVTS) which undergoes playback management by a logical unit called a program chain, and/or an advanced object (in AHDVTS) which undergoes playback control using a markup language. Management information (HDVMGI) in the management area includes information indicating one or both of the expanded video object and the advanced object as the object stored in the object area.
摘要:
A content playback apparatus includes an SKF selecting unit that selects one segment key file from plural segment key files recorded in a DVD media at a time of playback of a content of the sequence key section, a data selecting unit that selects each content corresponding to a segment number of each key entry registered in the selected segment key file, a moving picture data decrypting unit that decrypts the selected moving picture data by a segment key corresponding to the segment number, and a decoder that plays back the decrypted moving picture data.