摘要:
A CD on which only music information specified by the CD-DA is recorded, or a CD on which both music information specified by the CD-DA and music information to be recorded on a CD-ROM are recorded is mounted upon an information processing terminal. When the CD on which only music information specified by the CD-DA is recorded is mounted, the information processing terminal acquires, from a directory server, an ISRC number that identifies the music information recorded on the CD, and distribution server location information that identifies a content distribution server. The information processing terminal acquires content that is the music information compressed according to the MP3 and encrypted, from the content distribution server identified by the acquired distribution server location information, and the decryption key. The information processing terminal then decrypts the acquired content using the acquired decryption key and reproduces music.
摘要:
A recording medium which allows consumers to access and purchase content while protecting the copyright of the content. The recording medium includes a secure data area and a non-secure data area. The secure data area is accessible by an apparatus whose authenticity is verified, and the non-secure area is accessible by the apparatus regardless of such verification. The secure data area stores a first content key. The non-secure data area stores first data and second data which can be decrypted. The first data includes a first encrypted content which is generated by encrypting a first content with the first content key, and the second data includes a second encrypted content which is generated by encrypting a second content with a second content key, where the first and second contents are related to each other.
摘要:
The distribution server administers downloading of contents and writing in storage media. The distribution server includes the obtained rights administration database that stores information regarding rights to receive distribution of contents, and the history database that stores information regarding contents that have been distributed to the user in the past. The distribution server administers distribution of contents to each user.
摘要:
A terminal apparatus is provided which guarantees operation of a use condition bytecode while securing a degree of freedom for a service provider generating the use condition bytecode. A terminal apparatus (300), in which a license (1200) includes a use condition determining logic code (1204) and a version number (1202), includes a license obtainment unit (304) obtaining the license (1200), a use condition verification unit (302) determining, based on the version number (1202), whether or not an operation of the use condition determining logic code (1204) has been confirmed, a use condition bytecode execution unit (303) executing the use condition determining logic code (1204) when the operation of the use condition determining logic code (1204) has been determined to have been confirmed, and a content playback unit (306) playing back content based on the use condition determining logic code (1204).
摘要:
A network connecting device includes: a network device for connecting to the network; a profile generation determination section for determining whether or not to generate a profile including information necessary for forming a connection with the network; a profile generation section for generating the profile when the profile generation determination section determines to generate the profile; a profile management section for managing the profile generated by the profile generation section; and a network connection section for controlling the network device and connecting to the network, based on the profile managed by the profile management section.
摘要:
To reduce a frequency of recording communication management information for communication disconnection countermeasure. A digital content distribution system includes a license server (101) that issues a license, and a user terminal (103) that controls use of content based on the issued license. The license server (101) judges, according to the license to be issued, whether or not the communication management information for the communication disconnection countermeasure needs to be recorded, and notifies the user terminal of a result of the judgment. This enables the user terminal (103) to reduce the frequency of recording the communication management information.
摘要:
In a content reproduction apparatus according to the present invention, for example, a content usage time indicating a usage permitted time of content is set for the content, and a content reproduction management unit 811 manages a usage state and a rewind limit position of the content. Here, the rewind limit position is a position which indicates that the content cannot be reproduced till the end in the case where a user executes a rewind operation. For example, in the case where the user attempts to execute the rewind operation on the part that is in front of the rewind limit position, the content management unit 811 notifies the user of a warning message in advance.
摘要:
The subscriber circuit has a balanced amplifier and a built-in call-current polarity changing circuit. Moreover, the output stage circuits of the direct feed-back and offset cancel circuits of the subscriber circuit have the same configuration. By switching the input voltage supplied to the direct feed-back and offset cancel circuits by a switch, the signals fed back to the inputs of the balanced amplifier are switched. Thus, the polarity of the loop current can be inverted. Furthermore, it is possible to switch the loop current without adopting an extra circuit, and the part of the circuit in which the switches are not required to withstand pressure can be constructed with CMOS thereby allowing minimization of the circuit size.
摘要:
An advance transaction processing method in a transaction processing system for conducting transaction by inserting a card as a recording medium into an automatic teller machine by a user and carrying out input operation by the user, involves registering transaction assigning data for assigning transaction operation to be conducted by the user, a transaction restriction condition, and card identifying data on the card carried by the user; allowing an internal storage or a storage of the central processing unit connected to the automatic teller machine to store a transaction-operational procedure by using the transaction assigning data as a key for search; confirming as to whether the transaction restriction condition is satisfied, when the card is inserted into the automatic teller machine; reading the transaction-operational procedure by using the transaction assigning data recorded on the card as the key for search; and allowing the automatic teller machine to execute the processing for the transaction in accordance with the transaction-operational procedure.
摘要:
In a network connecting device connectable to a network, a connection approval/disapproval determination section determines approval/disapproval of connection to a network in accordance with a connection approval/disapproval determination rule managed by a connection approval/disapproval determination rule management section. When there is a security problem in a content of the connection approval/disapproval determination rule if a connection is to be formed, the security problem is solved by having a user re-input authentication information in the content of the connection approval/disapproval determination rule.