摘要:
An executing device for conducting playback is high during the playback of contents. The executing device is equipped with a highly efficient processor and reduces the processing load involved in verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the executing device is capable of improving the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.
摘要:
Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units consisting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed.
摘要:
A chair elevating/lowering hydraulic device includes at least a foot pump 3 which absorbs oil by an ascent of an operation lever 1, which discharges oil stored by a stepping-on of the operation lever, and which discharges stored oil by a stepping-on of the operation lever to a lowest position, a check valve 5 which is opened by the oil pressure of the oil discharged from the foot pump, which is opened when the foot pump is lowered to the lowest position, and which allows the oil from the non-return side to pass to allow it to return to an oil tank through the foot pump, an elevating/lowering cylinder 7, and an accumulator 6.
摘要:
A distribution server 103 distributes a content via a network, and a KIOSK terminal 105 receives the content via the network and records the content in an SD memory card 100. A customer device 111 receives a content via the SD memory card 100, checks out the content and records a copy on a recording medium. SD-Audio players 122 to 124 receive a copy of the content and play back the copy. Here, the KIOSK terminal 105 records a Usage Rule that certifies the right to control recording of content on the SD memory card 100. Move Control Information showing the number of times that moving of rights is permitted is set in the Usage Rule.
摘要:
The invention discloses a novel method for the preparation of a 2-keto carboxylic acid from carbon dioxide by an enzymatic addition reaction with an aldehyde compound. Carbon dioxide, which can be in the form of carbonate ions, is reacted with an aldehyde compound such as acetaldehyde and propionaldehyde under mild reaction conditions in the presence of a decarboxylase to give a 2-keto carboxylic acid such as pyruvic and a 2-ketobutyric acid by a reverse reaction to the enzymatic decarboxylation reaction. The scope of the invention involves contribution to a solution of the environmental problem of global warming due to carbon dioxide as a greenhouse effect gas in the aerospace.
摘要:
A file management apparatus is used in an information processor using a media exchange type storage device including a plurality of storage media, at least one data access device, and a storage media exchanging means as an external storage device. The file management apparatus includes a data block management device for dividing storage regions of the respective storage media into data blocks of fixed capacity and managing the use states of the divided data blocks. A data block allocation device allocates unused data blocks shown by the data block management device to a file to which a writing request from the information processor has been given.
摘要:
In a method for reproducing multimedia data recorded over plural optical disks using an optical disk library unit having at least one optical disk drive, during reading and reproduction of the multimedia data recorded in one of the optical disks, multimedia data from the optical disk is prefetched by an amount larger than the amount equivalent to the time required for exchange of the optical disks. The prefetched data is temporarily stored, and when the optical disk is exchanged for the next optical disk, the temporarily stored data is read and reproduced.
摘要:
There is disclosed a control unit of a computer system comprising a volatile storing device for holding written data while the power is on, a non-volatile storing device for holding the written data even when the power is off, and a power-off preserving device for powering off after transferring the data held in the volatile storing device to the non-volatile storing device. The control unit of the computer system further comprising a power-on resuming device for returning the data held in the non-volatile storing device to the volatile storing device. There is also disclosed a control unit of a computer system comprising a non-resumable condition judging device for judging whether the status of the computer system meets the process non resumable condition or not when the powering off operation is directed, and a non-resumable condition informing device for informing the user that the status has been judged to meet the condition.
摘要:
A scanning probe microscope, capable of achieving a resolving power of atomic level, is provided with a probe microscope unit 5, 6, 17 for measuring a fine constitution of sample surface with a probe 5, and with an optical microscope unit 8, 10-16 for observing an optical image of sample, in which the probe microscope unit is encased in a box 9 shielded against external noises and electromagnetic waves. The box has a shape of a cone such as triangular cone, which is placed on a triangular surface plate.
摘要:
A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.