Abstract: A communication controller is provided for controlling a wireless communication device disposed in a vehicle to transport data to a target device. The communication controller includes a searcher, a cost computer, a path determiner, and a communication control section. The searcher detects the current position of the vehicle, determines a travel plan of the vehicle, and searches for one or more transport paths for transporting data to the target device. The cost computer calculates a transport cost for each of the transport paths. The path determiner determines the lowest transport cost, selects the transport path, and determines the transmission conditions. The communication control section transmits the data to the target device when the transmission conditions are satisfied.

Abstract: The present invention is provided to implement an automated setting change of network setting items on an ad hoc network which does not have a specific base station.

Abstract: In a mobile communication system, a mobile communication apparatus in a vehicle includes a selected resource antenna permitting communication using a selected resource, establishing wireless communication with a target communication apparatus. The mobile communication system includes a propagation path characteristic acquirer section and a resource selector section. The propagation path characteristics acquirer section acquires propagation path characteristics information in association with a future communication position, the propagation path characteristics information being about propagation path characteristics between (i) the target communication apparatus and (ii) a reference antenna equal to the selected resource antenna in antenna characteristics including an antenna format.

Abstract: In a ledger execution unit of a distributed ledger system, a node communicates with a provider terminal to thereby execute a transaction, and a node communicates with a user terminal to thereby execute a transaction. A storage unit is configured in such a way that at least one of the nodes generates a new distributed information item indicative of a record of the transactions, and each of the nodes stores the new distributed information item.

Abstract: In a mobile communication system, a mobile communication apparatus in a vehicle includes a selected resource antenna permitting communication using a selected resource, establishing wireless communication with a target communication apparatus. The mobile communication system includes a propagation path characteristic acquirer section and a resource selector section. The propagation path characteristics acquirer section acquires propagation path characteristics information in association with a future communication position, the propagation path characteristics information being about propagation path characteristics between (i) the target communication apparatus and (ii) a reference antenna equal to the selected resource antenna in antenna characteristics including an antenna format.

Abstract: A radio communication terminal comprises a data classification part, a data value unit price determination part, a transmission value unit price determination part, a transmission order control part, a resource allocation part and a transmission part. The data classification part acquires transmission data from a data supply source, classifies the transmission data by priority class based on a communication quality request, which is determined by types of the transmission data, and stores the transmission data in a priority buffer in correspondence to the priority class. The data value unit price determination part determines a data value unit price of the transmission data. The transmission value unit price determination part determines a transmission data value unit price based on the data value unit price. The transmission order control part assigns a transmission order to the transmission data having the transmission data value unit price higher than a predetermined transmission threshold value.

Abstract: A data delivery system includes: a server for obtaining a first query requesting data from a user device. The first query includes data requirements for data requested by the user device. The data delivery system also includes a data providing terminal for providing terminal data to the server, as either the user-requested data or as data from which the user-requested data is derivable. The data delivery system enables the user device to obtain the user-requested data. The server includes: a first query obtainer for obtaining the first query from the user device; a second query determiner for determining a second query by using attributes that enable the data providing terminal to identify the terminal provided data; and a server transmitter for transmitting the second query to the data providing terminal.

Abstract: In a wireless communication system, a mobile communication apparatus judges the reception quality available at its current position for direct reception of information transmitted from a fixed wireless station, with the judgement based upon the current position and upon a reception quality map expressing a relationship between reception positions and corresponding reception quality values. If the reception quality at the current position is judged to be sufficient, direct reception is executed, while otherwise, a limitation is placed upon such direct reception, for example by postponing the direct reception until reaching a icy position at which the reception quality will be sufficient.

Abstract: In a wireless communication system, a mobile communication apparatus judges the reception quality available at its current position for direct reception of information transmitted from a fixed wireless station, with the judgement based upon the current position and upon a reception quality map expressing a relationship between reception positions and corresponding reception quality values. If the reception quality at the current position is judged to be sufficient, direct reception is executed, while otherwise, a limitation is placed upon such direct reception, for example by postponing the direct reception until reaching a position at which the reception quality will be sufficient.

Abstract: A first terminal accompanying a subject moving entity transmits a first time-sequential data string, which represents a history of a first state quantity varying depending on a behavior of the subject moving entity, to a second terminal wirelessly. The second terminal stores a second time-sequential data string representing a history of a second state quantity of a moving entity detected by a moving entity detector in association with the moving entity detected. The received first time-sequential data string and the stored second time-sequential data string are referred to so as to identify the association between (i) the first terminal, which is equivalent to a transmission source of the first time-sequential data string, and (ii) an identified moving entity that is identified from the detected moving entity, to determine that the identified moving entity is associated with the first terminal.

Abstract: A data processor for transferring or maintaining a data sample, includes: a table management unit that manages a data value table that relates a data type of the data sample, usage attribute information defined by a pair of at least one attribute type and a value concerning a utilization form, and information for defining a value index; and a prioritizing unit that defines the value index for the data sample based on the data value table, the value index belonging to a specific data type and associated with the usage attribute information, and sets a priority of the transferring or the maintaining of the data sample using the value index.

Abstract: In a mobile communication system, a mobile communication apparatus in a vehicle includes a selected resource antenna permitting communication using a selected resource, establishing wireless communication with a target communication apparatus. The mobile communication system includes a propagation path characteristic acquirer section and a resource selector section. The propagation path characteristics acquirer section acquires propagation path characteristics information in association with a future communication position, the propagation path characteristics information being about propagation path characteristics between (i) the target communication apparatus and (ii) a reference antenna equal to the selected resource antenna in antenna characteristics including an antenna format.

Abstract: A wireless positioning terminal includes a wireless receiver receiving reception signals from a wireless transmitter via multiple communication links. A multi-link-base reception informational item is determined by evaluating reception signals via the communication links. The multi-link-base reception informational item, which has a value varying with a position of the wireless positioning terminal, varies with the position differently from an informational item of a reception signal via one of the communication links. A base trajectory is stored which represents correspondence relation about points between (i) a position of the wireless positioning terminal and (ii) the multi-link-base reception informational item. A measured trajectory is generated which represents correspondence relation about points between (i) a calculated position variation and (ii) the multi-link-base reception informational item.

Abstract: An apparatus installed on a host vehicle derives travel locus/condition information relating each of a plurality of reception positions on the vehicle to a corresponding reception condition (e.g., received signal strength), and updates the information at each of successive positions along a travel locus of the vehicle. The currently obtained information is compared with reference travel locus/condition information previously obtained by travel along a reference travel locus, in the same travel direction, by the host vehicle or similar vehicle. Degrees of similarity between the currently obtained information and the reference information are evaluated, and the results used to detect changes in position of the host vehicle along a direction at right angles to its advancement direction.

Abstract: A display device includes: an information acquisition unit communicating with an outside to acquire absence region information identifying an absence region in which an obstacle is presumed to be absent; and a display unit displaying the absence region, which is acquired by the information acquisition unit, in a state of superimposing the absence region on a map. A vehicle controller includes: an information acquisition unit communicating with an outside to acquire absence region information identifying an absence region in which an obstacle is presumed to be absent; and a vehicle control unit performing vehicle control based on the absence region. A transmitter includes: a sensor detecting an obstacle; an information creation unit creating absence region information identifying an absence region based on a result detected by the sensor; and a transmission unit transmitting the absence region information. In addition, a travelling assistance system includes the display device and the transmitter.

Abstract: A wireless positioning terminal includes a wireless receiver receiving reception signals from a wireless transmitter via multiple communication links. A multi-link-base reception informational item is determined by evaluating reception signals via the communication links. The multi-link-base reception informational item, which has a value varying with a position of the wireless positioning terminal, varies with the position differently from an informational item of a reception signal via one of the communication links. A base trajectory is stored which represents correspondence relation about points between (i) a position of the wireless positioning terminal and (ii) the multi-link-base reception informational item. A measured trajectory is generated which represents correspondence relation about points between (i) a calculated position variation and (ii) the multi-link-base reception informational item.

Abstract: A first terminal accompanying a subject moving entity transmits a first time-sequential data string, which represents a history of a first state quantity varying depending on a behavior of the subject moving entity, to a second terminal wirelessly. The second terminal stores a second time-sequential data string representing a history of a second state quantity of a moving entity detected by a moving entity detector in association with the moving entity detected. The received first time-sequential data string and the stored second time-sequential data string are referred to so as to identify the association between (i) the first terminal, which is equivalent to a transmission source of the first time-sequential data string, and (ii) an identified moving entity that is identified from the detected moving entity, to determine that the identified moving entity is associated with the first terminal.

Abstract: A terminal device includes a communication state obtain unit that obtains a state of wireless communication, a travel locus information generation unit that generates travel locus information, a reference locus information obtain unit that obtains reference locus information, a measurement unit that obtains a position of a movable body along a travel direction based on a matching between the travel locus information and the reference locus information, a mismatch detection unit that detects at least one of (i) mismatch degree between the travel locus information and the reference locus information in the matching, and (ii) a cause of mismatch in the matching, and a filtering unit that filters at least one of the travel locus information and the reference locus information. The measurement unit performs the matching before the filtering, which increases the measurement accuracy of the terminal device.

Abstract: A packet recovery method of the present invention is a packet recovery method upon loss of a plurality of packets transmitted from a first node 111 to second node 112 through a network in the order of sequence numbers assigned to each of said packets, wherein second node 112, upon detection of a loss of a packet transmitted from first node 111, transmits an acknowledgement message, including a sequence number of a packet whose receipt has been confirmed or whose loss has been detected and including information on the lost packet, to first node 111 through the network.

Abstract: A message notification system includes a message transmitting apparatus and a message receiving apparatus. In the message transmitting apparatus, transmission data including an acquired message is generated and transmitted. In the message receiving apparatus, the transmission data is received. When the transmission data is received, the message receiving apparatus notifies a receiving-side user of the message in the transmission data. The message transmitting apparatus sets whether nor a receiving-side user is to be re-notified of the message in the transmission data, and sets a re-notification condition for re-notification of the message.