摘要:
A solenoid valve comprising a valve body, and a poppet vertically slidable within the valve body and moved to and from a valve seat so as to open and close an oil passage. The poppet is in the form of a cylindrical tube and is slidably fit around and supported by a guide rod in an oil-tight manner. The guide rod has a valve seat at its bottom and an oil passage for communication with the interior of the poppet. Features of the present invention are as follows. The guide rod has a surface on which the inner peripheral surface of the poppet is slidable. The outer diameter of such a surface of the guide rod is slightly smaller than that of the valve seat. In this way, the solenoid valve acts as an on-off valve and a relief valve. The valve of the type as thus far explained further includes a passage for reducing the flow velocity of an oil as pressurized between the poppet and the guide rod. A surface of the poppet is shaped to maintain an oil film between the poppet and the valve seat. An armature is integrally formed with the head of the poppet and is shaped in such a manner that the solenoid valve is opened in proportion to input current. The present invention is, thus, applicable to a proportional control valve.
摘要:
An information processing apparatus and method configured to access multiple external storage medium. The apparatus and method detect theft or loss (or otherwise unauthorized use) of the information processing apparatus with respect to data stored in multiple storage areas, back up the data to the storage medium, and record, in association with each of the storage medium, an easiness degree indicating how easily a user accesses the storage medium. The apparatus and method calculate erasure priority rankings of the data stored in a manner that an erasure priority ranking is higher as an easiness degree is higher, record the calculated erasure priority rankings in association with each of the multiple storage areas, and erases the data stored in the multiple storage areas in accordance with the erasure priority rankings when detecting theft or loss of the information processing apparatus.
摘要:
A device comprises a look-up table translating unit, a region dividing unit and a reduced image generating unit to reduce the size of a color image using look-up tables and a reference look-up table. Each of the look-up and reference look-up tables has as many entries as there are the pixel values. The look-up table translating unit creates an entry check table. The entry check table is for translating the table entries of the look-up table into the those of the reference look-up table. The region dividing unit divides the original color image into a plurality of regions. The reduced image generating unit accesses the entry check table and the reference look-up table to selectively determine a representative pixel of the region based on the RGB values thereof to generate the reduced color images.
摘要:
An authentication system includes node devices, wherein a first node device transmits the authentication information thereof to a second node device, the second node device selects third node devices that are requested to verify the validity of the received authentication information, and transmits the authentication information to each of the selected third node devices, the third node device records verification information that is used to verify the validity of the authentication information of the first node device, verifies the validity of the authentication information on the basis of the authentication information and verification information, and transmits the result information to the second node device, and the second node device further derives weighted values indicating the reliability of the each verification of the third node devices and authenticates the first node device on the basis of the each result information and the each weighted value received from the third node devices.
摘要:
A terminal apparatus acquires setting information for controlling whether a storage area held by the non-volatile storage medium is to be used or not, from an external apparatus connected via a network, when the terminal apparatus is activated. The terminal apparatus updates area definition information defining the structure of storage areas in the non-volatile storage medium so that the storage area the use of which is restricted is in a state which cannot be recognized by the operating system, if the acquired setting information indicates that the use of the storage area is restricted. The terminal apparatus performs activation processing of the operating system after the update processing of the area definition information ends, if the acquired setting information indicates that the use of the storage area is restricted.
摘要:
An apparatus transmits reservation information including a contents-ID identifying the contents and a terminal-ID identifying the apparatus that transmits the reservation information to the apparatus determined by the contents-ID, receives the reservation information transmitted from the apparatus that accepts the reservation operation and updates a reservation terminal list that associates the contents-ID and the terminal-ID, verifies whether the acquired contents have defects, transmits a search-request having the contents-ID identifying the contents judged that have defects to the apparatus determined by the contents-ID, receives the search-request transmitted from the apparatus judged that have defects, retrieves the terminal-ID registered in association with the contents-ID of the search-request from the reservation terminal list, transmits a search-result having the acquired terminal-ID, receives a search-result from the apparatus to which the search-request is transmitted, and acquires recovery data of the contents that have defects from the apparatus identified by the terminal-ID of the search-result.
摘要:
An apparatus accepts an injustice (grievance) report containing injustice report source terminal information for identifying a terminal device transmitting the injustice report and injustice content holding terminal information identifying a terminal device holding the content altered from the original content and content identification information for identifying the content; accesses a correspondence relation recording unit recording, in association with content identification information identifying the content, notification destination terminal information identifying a terminal device to which the content holding terminal information is notified, and content holding terminal information notified to the notified terminal device; determines that the injustice report accepted by the injustice report accepting is false and discards the false injustice report, when the injustice report source terminal information contained in the injustice report is not coincident with the notification destination terminal information recorded in the correspondence relation recording unit.
摘要:
An information processing device and method include storing encrypted content, storing a key for decrypting the encrypted content stored, decrypting the encrypted content stored using the key, storing a deletion table storing information indicating whether or not the key stored is to be deleted when a transition from an operating state to one of other states is made, the information corresponding to the other states, and checking the information in the deletion table corresponding to the one of the other states and deleting the key when the information indicates that the key is to be deleted.
摘要:
An information processing apparatus has: a memory 13; CPU for executing a program written in the memory 13; a secure module 20; and storage means for storing a plurality of encrypted programs into which a program is divided. The CPU transmits the program stored in the storage means to the secure module 20. The secure module 20 has: means for receiving the program stored in the storage means, means for returning the received program to an executable state; means for writing the program, which has been returned to the executable state, in the memory 13 in a sequence for CPU to execute, and means for deleting the program from the memory 13 by CPU after execution is completed. When executing the program, the information processing apparatus can make reverse analysis by a malicious third party difficult, and enhance security of a load module to be executed.
摘要:
An information processor is connectable to a communication system containing a plurality of terminal devices. The information processor receives content holding terminal information for identifying a terminal device holding a content, calculates a content holding terminal number corresponding to the number of terminal devices holding the content on the basis of the received content holding terminal information, holds a determination reference serving as a reference for determining whether the content holding terminal number is below a predetermined threshold value, determines on the basis of the content holding terminal number calculated by the terminal number calculator and the determination reference whether the content holding terminal number concerned is below the predetermined threshold value, and transmits an extinction preventing instruction for making the terminal device holding the content concerned execute processing of preventing extinction of the content when determining that the content holding terminal number is below the predetermined threshold value.