摘要:
When data whose storage period is limited by copy control information is temporarily stored in a removable recording medium, the data are encrypted and decoding information (encryption key) necessary to decrypt the encrypted data is held on the device side. By doing so, the data cannot be used beyond a permitted period of the temporary storage. A storage device has an external input/output I/F for removably connecting a removable recording medium; a reception section for receiving copy control information and data (such as video data), the storage period of which data is limited by the copy control information; an encrypting section for encrypting the received data; and a control section for storing the encrypted data in the removable recording medium and storing decryption information (encryption key), necessary to decrypt the encrypted data, in a place in the storage device, outside the removable recording medium. The data stored in the removable recording medium can be reproduced only by the storage device.
摘要:
A heat sink to be used with a heat source can include a base portion and a fin portion. The base portion can include a plurality of heat pipes and a space formed at least partially between adjacent heat pipes. The base portion can also include a first plate thermally connected to the heat source and a second plate thermally connected to the fin portion. The plurality of heat pipes contacts the first plate and the second plate. The plurality of heat pipes can also include a first portion that is closer than a second portion to the heat source. Additionally, a distance between adjacent heat pipes is smaller at the first portion than at the second portion.
摘要:
A recording area of a hard disk is managed by units. Each unit comprises physically continuous recording regions having predetermined size, and usage status of the unit is stored in an allocation unit (AU) management table. Data requiring a real time processing is stored in each unit. When the usage status of the unit is changed or modified due to the recording or deletion of data, the AU management table is updated and then information indicative of the fact that the AU management table has been updated is recorded. An apparatus where the final change is made is detected at the time the hard disk is inserted or a file system is initialized. And if the apparatus which last made the change adopts the file system which does not use the AU management table, then the table is reconfigured so as to retain the consistency of the AU management table.
摘要:
A heat sink including a base portion and a fin portion thermally contacted with the base portion. The inside of the base portion has at least one heat pipe, and a space (e.g., an air passage) formed around part of the peripheral portion of the heat pipe. The base portion is constructed of a first plate member that is contacted with a heat source, and a second plate thermally contacted with the fin portion. The heat pipe is placed between the first plate member and the second plate and is thermally contacted with them.
摘要:
An information recording apparatus is provided whereby in the reproduction of broadcasting information, the broadcasting information can be recorded so that the combination and so on of contents included in the broadcasting information can be recognized without the need for reproducing the broadcasting information itself.An information recording apparatus for recording broadcasting information constituted of a packet which has a predetermined amount of information and includes different types of contents, each type including one or more contents, the apparatus including a controller 8. The controller 8 generates contents group information based on correlation information which is included in the received broadcasting information and indicates a correlation between the contents, the contents group information including identification information for identifying the relationship between the packet and the content and type information indicating the type of the content, the contents group information indicating a contents group to include the one or more contents, and the controller 8 records the generated contents group information on a hard disk 1 with the broadcasting information.
摘要:
A technology is provided to improve tamper resistance in encrypting data to be secured and inputting/outputting the data between a recording device and a host device. When the recording device issues an input/output command to a storage device to input/output data to be secured, the recording device attaches an ID to the command to identify to which cryptographic input/output processing the command belongs. Upon reception of a sequence command, the storage device receives the command if its ID has been allocated and the command is verified to have been issued in the correct sequence. The sequence ID is used to identify a process system while appropriately managing the steps of executing commands.
摘要:
A heat sink to be used with a heat source can include a base portion and a fin portion. The base portion can include a plurality of heat pipes and a space formed at least partially between adjacent heat pipes. The base portion can also include a first plate thermally connected to the heat source and a second plate thermally connected to the fin portion. The plurality of heat pipes contacts the first plate and the second plate. The plurality of heat pipes can also include a first portion that is closer than a second portion to the heat source. Additionally, a distance between adjacent heat pipes is smaller at the first portion than at the second portion.
摘要:
An information recording apparatus is provided which can record broadcasting information so as to accurately identify and reproduce broadcasting information to be reduced while increasing convenience in reproducing the broadcasting information. Time control is performed during reproduction in allocation units ALU based on the receiving time of the first packet and the receiving time of the last packet in the allocation unit ALU included in the broadcasting information. The allocation unit ALU includes a plurality of packets. Time control is performed also in access units, each of which includes an I picture, based on the display time information or the receiving time information of the I picture included in the packet.
摘要:
A collective content consisting of a plurality of partial contents holding license information including a use condition can be appropriately used according to the use condition contained in the license information in each of the partial contents. A content use control device includes an input/output I/F, license generation unit, output control unit, content reproduction unit, and use control unit. The partial content holding the license information including the use condition is inputted via the input/output I/F. License information is assigned to each of the partial contents inputted and constituting a collective content. Single license information collecting the assigned license information and its collective content are outputted to a recording medium. The content use control device reproduces a partial content contained in the collective content recorded on the recording medium and controls the use of the reproduced partial content according to its use condition.
摘要:
A controller of a recording device issues a secure command to a storage device, and then waits the time estimated necessary for the storage device to execute the secure command before issuing the next secure command. When a controller of the storage device is executing the previous command, it notifies the recording device of being in process. When the previous command has been completed normally, the controller moves to the next process. Information for estimating the execution time of the command is obtained from the storage device in advance.