Abstract: A wireless communication device installed in a flying vehicle, includes a wireless communication part configured to receive a wireless signal transmitted from a wireless base station, a cell counter configured to count the number of cells corresponding to wireless base stations identified by wireless signals received by the wireless communication part, and a communication controller configured to change a communication party selecting method to select the wireless base station serving as a communication party from among a plurality of wireless base stations serving as communication party candidates when an increment or a decrement of a unit-time cell count representing the counting result of the cell counter in a predetermined time is equal to or more than a predetermined threshold.

Abstract: An image processing apparatus comprises means for selecting, from a single image, a range where a target pixel is made to be a reference, means for approximating a distribution of pixel values of the selected range by a function that represents a curved surface, and means for calculating a vector related to the distribution of pixel values from a parameter of the function obtained as a result of the approximation.

Abstract: An in-vehicle computer generates a message authentication code about its own log using its own signature key and thereby transmits a log annotated with its message authentication code to a vehicle information collection device. The vehicle information collection device generates the signature key of the in-vehicle computer, verifies the message authentication code, which is included in the log annotated with its message authentication code received from the in-vehicle computer, using generated signature key, and thereby stores the log relating to the successfully verified message authentication code on storage media.

Abstract: A flying device that flies by being controlled from an external location, the flying device including a determination unit that determines a communication quality on a first wireless communication channel used for transmitting data to a control device that controls the flying device within a prescribed range from a flight position at which the flying device is flying; and a transmission control unit that controls a type of data to be transmitted to the control device on the basis of the communication quality determined by the determination unit.

Abstract: An image decoding device includes: a motion vector decoding unit that decodes a motion vector from encoded data; a refinement unit that performs refinement processing to correct the decoded motion vector; and a predictive signal generation unit that generates a predictive signal on the basis of the corrected motion vector outputted from the refinement unit. The predictive signal generation unit determines whether or not to apply BDOF processing for each block, on the basis of information calculated in the course of the refinement processing.

Abstract: A measurement apparatus includes: a light source unit configured to generate optical signals of, from among n+1 frequencies (n is an integer of 3 or larger) at a predetermined frequency interval, n frequencies except for a target frequency, and output the generated optical signals to an optical transmission path that is a measurement target; an optical power measurement device configured to measure of an optical signal of the target frequency output from the optical transmission path and generated in the optical transmission path as a result of four-wave-mixing of the optical signals of the n frequencies; and a processor configured to determine a power spectrum density of non-linear interference noise that occurs in the optical transmission path, by multiplying the power of the optical signal of the target frequency by an adjustment value.

Abstract: A map information transmission device includes: a dividing unit configured to divide a region of a map into a plurality of sub regions based on superimposition positions at which a plurality of objects are to be displayed superimposed on the map, the dividing unit performing the division such that a number of objects included in each of the sub regions is a predetermined number or lower; a unit configured to generate, for each of the sub regions, a merged image that includes objects included in a sub region; a unit configured to generate, for each of the sub regions, display code that includes clipping information that designates a clipping region of the merged image that corresponds to the sub region; and a unit configured to transmit the merged image and the display code to a map display device.

Abstract: An image decoding device includes: a boundary strength calculator (that calculates a boundary strength of a block boundary based on input side information; a weight coefficient determinator (108C/108D) that determines a weight coefficient based on the boundary strength; and a difference filter adder that generates a post-filter image based on a difference filter image, a pre-filter image, and the weight coefficient which are input.

Abstract: A transfer apparatus for a content distribution network in which a content is divided into one or more objects and distributed includes: a determination unit configured to, upon receiving a first request packet, determine whether the first request packet is to be processed; a monitor unit configured to, when the first request packet is to be processed, determine a requested content corresponding to a requested object requested by the first request packet, and monitor a second request packet that requests an object of the requested content for a predetermined period; and a transmission unit configured to, when the second request packet satisfies a predetermined condition, generate and transmit a third request packet that requests an object that differs from the objects requested by the first request packet and the second request packet among objects of the requested content.

Abstract: A flying device that flies by being controlled from an external location, the flying device including a determination unit that determines a communication quality on a first wireless communication channel used for transmitting data to a control device that controls the flying device within a prescribed range from a flight position at which the flying device is flying; and a transmission control unit that controls a type of data to be transmitted to the control device on the basis of the communication quality determined by the determination unit.

Abstract: Provided are a key generation device and an in-vehicle computer which is installed in a vehicle. The key generation device includes a vehicle interface, a key generation unit that generates first and second keys, a cryptographic processing unit that encrypts the first key with an initial key to generate first encrypted data and encrypts the second key with the first key to generate second encrypted data, an expected value calculation unit that calculates an expected value of stored data using the second key, and a verification unit that verifies a received measured value on the basis of the expected value, and the key generation device transmits the first and second encrypted data to the vehicle. The in-vehicle computer includes an interface unit, a cryptographic processing unit that decrypts the received first encrypted data, and decrypts the received second encrypted data, and a measured value calculation unit.

Abstract: A data provision system includes a data provision device and a data security device installed in a vehicle. The data provision device includes a vehicle interface configured to transmit data to and receive data from the vehicle; and an cryptographic processing unit configured to generate an electronic signature of application data to be applied to an in-vehicle computer installed in the vehicle by using a secret key of the data provision device, wherein application data with the electronic signature, which is obtained by attaching the electronic signature to the application data, is transmitted to the vehicle through the vehicle interface. The data security device includes an interface unit configured to transmit data to and receive data from a device outside the data security device; and an cryptographic processing unit configured to verify the electronic signature of the application data with the electronic signature received from the data provision device.

Abstract: A communication system is provided that allows communication between a vehicle and a server device. This communication system includes: the server device; a first arithmetic processing device installed in the vehicle; and a second arithmetic processing device that is a secure element and is installed in the vehicle. The second arithmetic processing device includes: a vehicle key storage unit that stores a first key and a second key; a vehicle authentication processing unit that performs authentication with the server device using the first key; and a vehicle key transmission/reception unit that transmits or receives a third key to or from the server device by encryption communication which uses the second key. The first arithmetic processing device includes a vehicle communication unit that performs encryption communication with the server device using the third key.

Abstract: A distribution device includes an information acquisition part configured to acquire the device identification information to identify a communication device and the base-station identification information to identify a base station attributed to the communication device among a plurality of base stations over a wireless communication network from the communication device, a determination part configured to determine a sequence of distributing software to a plurality of communication devices connectible to the base station based on the device identification information and the base-station identification information with respect to each base station, and a distribution part configured to distribute the software from the base station to a threshold number or less of communication devices according to the sequence determined by the determination part.

Abstract: A management device installed in a vehicle includes a master key storing part configured to share the master key that is used to generate an initial key held by an ECU together with an identifier of the ECU; a communication part configured to communicate with the ECU; a key generation part configured to generate the initial key of the ECU by use of the master key stored on the master key storing part and the identifier of the ECU received from the ECU via the communication part; and an initial key storing part configured to store the initial key of the ECU that is generated by the key generation part in connection with the identifier of the ECU.

Abstract: A decoding device includes a transformer sets a decoded luminance component of a prediction target block to the same number of samples as that of the chrominance component corresponding to the decoded luminance component of the prediction target block and generates a luminance reference signal. A specificator specifies luminance pixels having minimum and maximum pixel values of the decoded luminance component adjacent to the decoded luminance component of the prediction target block, respectively, outputs luminance pixel values obtained from specified luminance pixels, and outputs chrominance pixel values from pigment pixels corresponding to the luminance pixels. A derivator derives a linear prediction parameter from the two pixel values and a linear prediction model. A chrominance linear predictor obtains a chrominance prediction signal by applying the linear prediction model based on the linear prediction parameter to the luminance reference signal.

Abstract: A transfer device includes: a determination unit configured to determine, if a data packet including content and list information is received as a response to a transferred request packet, whether or not the content can be transmitted to a transfer device that has transmitted the request packet, based on an identifier of the transfer device that has transmitted the request packet and the list information. The list information included in the data packet is generated based on an identifier of a transfer device to which the content included in the data packet can be transmitted, of a plurality of transfer devices in the content distribution system, or is generated based on an identifier of a transfer device to which the content included in the data packet cannot be transmitted.

Abstract: According to an embodiment of the present invention, an analysis server includes an in-site location information acquisition unit configured to acquire first location information indicating a location of a terminal that is measured when the terminal of a user is connected to a plurality of location measurement devices installed inside a prescribed site in association with in-site identification information for identifying the user or the terminal, an off-site location information acquisition unit configured to acquire second location information indicating a location of the terminal measured in a measurement method different from that of the first location information outside the site in association with off-site identification information for identifying the user or the terminal, an analysis unit configured to associate the first location information with the second location information by associating the in-site identification information with the off-site identification information and analyze the first lo

Abstract: A payment processing device includes a token transmission unit that stores a user ID in a storage unit in association with a payment token for generating a payment code when a request for issuing the payment code is acquired from a user terminal and transmits the payment token to the user terminal, a payment information receiving unit that receives the payment token, store information, payment information about a purchase of a product or service by a user at a store from a store terminal that has read the payment code displayed by the user terminal on the basis of the payment token, and an advertisement information transmission unit that acquires presentation information including information about a store different from the store, information about a business operator different from the business operator of the store, or information about a predetermined product on the basis of the received store information in a case where the payment token stored in the storage unit matches the received payment token and t

Abstract: A device controller connected to a communication terminal and a plurality of devices via a network includes an acquisition unit configured to receive first control information for controlling a plurality of devices of predetermined type from the communication terminal, the first control information including specific information for identifying a control target device selected from the plurality of devices, a device identification unit configured to identify the control target device on the basis of the specific information included in the first control information, a generation unit configured to generate second control information for causing the control target device to execute control details indicated by the first control information, the second control information being different from the first control information, and a transmission unit configured to transmit the second control information.