Abstract: A device state recording system includes a ground system and an on-board system. The device state recording system records a state quantity of a device in the on-board system in response to an instruction from the ground system. The on-board system includes a state recording device provided in the device. A device-side parameter setter sets at least a parameter related to generation of a trigger condition for instructing start of recording of the state quantity of the device, and a parameter related to the state quantity of the device. A state record storage records therein a state quantity of a device that records the state quantity of the device based on the parameter related to generation of the trigger condition and the parameter related to the state quantity of the device.

Abstract: A manufacturing line includes a receiving unit that receives sensor data indicative of a measured value by a sensor provided near a manufacturing device constituting a manufacturing line, a sensor determining unit that determines whether the measured value indicated by the sensor data exceeds a first sensor threshold value indicative of a predetermined range, and a notifying unit that sends a sensor abnormality notification, which notifies a user of the client terminal that the manufacturing device malfunctions, in a case where the sensor determining unit determines that the measured value exceeds the first sensor threshold value.

Abstract: A car navigation system includes: an in-vehicle display device that includes: a central information display device that has a display and displays a video image on the display; an individual functional device that is formed independently of the central information display device and has a navigation function; and an expansion device that connects the central information display device and the individual functional device; and a map division distribution system that includes a map encrypting unit that encrypts a divided map with a map key uniquely assigned to the divided map formed by dividing a map; a decryption key generating unit that decrypts the map key with a user key uniquely assigned to a user; and a decryption key distributing unit that distributes the decryption key to the individual functional device.

Abstract: A content sales support apparatus finds the number of possessions for each content of the encrypted contents stored at the user terminals and the average number of possessions of contents. The content sales support apparatus finds the number of purchases for each content of the keys purchased at the user terminals and the average number of purchases of contents. The content sales support apparatus finds a purchase ratio obtained by dividing the number of purchases of a key for each content by the number of possessions of encrypted content. Then, the content sales support apparatus determines a sales measure for each content on the basis of the result of comparison between the found number of purchases of the key for each content, the number of possessions of encrypted content, the purchase ratio, the average number of possessions, and the average number of purchases.

Abstract: Provided is an anonymity service providing system for authenticating an anonymous user device based on a group signature and providing service to the user device, the system comprising a group management institute device which manages a plurality of groups in the group signature system, a user device belonging to at least one the groups, and a service use situation for each user device, promotes a user device to change a group in response to a use situation, and changes a group based on a change request received from the user device, a service provider device which sets in advance a condition for promoting change of a group to the group management institute device, and provides service to a user device, and a user device which, when change of a group is promoted from the group management institute device, transmits a change request to the group management institute device.

Abstract: A system 1 and method for producing and managing an advertisement is disclosed having an advertisement client head terminal 2 of an advertisement client who orders an object advertisement to be produced, an area base terminal 3 at each of area bases of the advertisement client, a production company terminal 4 of a production company which produces an advertisement part and advertisement design information, an advertisement production management server 5 which executes preliminary processing of separate examination for the advertisement part and the advertisement design information to produce a complete package to enable the advertisement to be altered upon receipt of an audience response, a broadcast entrepreneur 6 who executes separate examination of the advertisement and provides a broadcast of the advertisement, an audience terminal 7 from which the advertisement is viewed, and a response server 8 which collects the audience response.

Abstract: The worker enters information regarding allocation objects, necessary to build a client-server system, from the problem input means 10. The worker also specifies in advance, through the characteristic input means 11, the characteristic the allocation result should have. The worker enters information necessary to get an effective allocation from the supplementary information input means 12. When the allocation means 13 receives information from the problem input means 10, characteristic input means 11, and supplementary information input means 12, it searches for an effective allocation result. The allocation means 13 then outputs the result to the allocation result output means 16, and the worker judges the result using the judgment result input means 15. The final allocation result output means 16 outputs the allocation result which is judged as the final allocation.