Abstract: An in-vehicle apparatus to be mounted in a vehicle includes receiving circuitry, which, in operation, receives, from a roadside apparatus providing a distribution service of a road video, an advertisement message indicating that the distribution service is provided; control circuitry, which, in operation, generates, based on reception of the advertisement message, a message regarding transmission of the road video to the roadside apparatus; and transmitting circuitry, which, in operation, transmits the message to the roadside apparatus.

Abstract: A communication apparatus mounted on a vehicle includes: a camera that captures a still image used for generating a map; a positioning circuit that positions a captured position of the still image; a control circuit that associates position information indicating the captured position with image data of the still image; and a communication circuit that establishes a radio communication with a roadside unit and transmits the image data by radio to the roadside unit, in which the control circuit rearranges an transmission order of the image data to be transmitted by radio to the roadside unit, based on the position information.

Abstract: A pickling apparatus for pickling a strip of metal being conveyed is equipped with: a pickling tank for storing an acid solution; a surrounding part disposed in the pickling tank so as to surround the strip immersed in the acid solution in the pickling tank; and an oxidant supply part for supplying a liquid oxidant toward an inside of the surrounding part.

Abstract: The present invention groupcasts a groupcast frame in a short period of time by using millimeter wave communication. A communication device equipped with a MAC control circuit for controlling a procedure for discovering a communication partner device and a procedure for determining the best transmission sector, and also equipped with a wireless circuit for transmitting a unicast frame to the communication partner device by using the best transmission sector, wherein the MAC control circuit controls the wireless circuit so as to start a timer for each discovered communication partner device after the procedure for discovering communication partner devices is completed, and transmit a groupcast frame to communication partner devices for which the timer has not finished by using the best transmission sector upon receiving a groupcast frame transmission request from a higher layer before all timers have finished.

Abstract: This wireless communication terminal device includes a control circuit that: causes, after receiving a beacon from a base station device, a connection to be established between the wireless communication terminal device and the base station device using a first control program; if a connection notification request to an external server was received from one or more application programs, uses a second control program, after the establishment of the connection, to output a connection establishment notification to the one or more application programs; and after the connection establishment notification is received, outputs to a communication circuit, via the first control program, a communication request to the external server device by the one or more application programs. The communication circuit of the wireless communication terminal device transmits the communication request to the base station device.

Abstract: A radio communication apparatus includes: processing circuitry, which, in operation, scans a radio connection destination candidate; and control circuitry, which, in operation, determines, when first initial-connection processing to the connection destination target fails, a start timing of second-initial connection processing based on a cause of the failure. The processing circuitry scans the connection destination candidate based on the start timing of the second initial-connection processing.

Abstract: A communication apparatus mounted on a vehicle includes: a first communication circuit that operates as an access point of an infrastructure mode and transmits and receives a radio wave toward and from a front side of the vehicle; and a second communication circuit that operates as a station of an infrastructure mode and transmits and receives a radio wave toward and from the front side of the vehicle.

Abstract: A communication apparatus mounted on a vehicle includes: a camera that captures a still image used for generating a map; a positioning circuit that positions a captured position of the still image; a control circuit that associates position information indicating the captured position with image data of the still image; and a communication circuit that establishes a radio communication with a roadside unit and transmits the image data by radio to the roadside unit, in which the control circuit rearranges an transmission order of the image data to be transmitted by radio to the roadside unit, based on the position information.

Abstract: A wireless communication device for a road side zone includes a wireless communication circuit that forms beams in plural different directions in a time division scheme in an area which includes plural routes. The wireless communication device for a road side zone includes a recording circuit that records time transition in the direction of the beam used by the wireless communication circuit, which forms the beams in the plural different directions in a time division scheme, for wireless communication with a second wireless communication device provided to a mobile apparatus which moves on any of the plural routes.

Abstract: The present invention improves the success rate of wireless connection in communications between moving objects or roadside unit-to-moving object communications. A wireless communication device (100) includes a first radio (101) and a second radio (102). The first radio (101) scans, at one of the front and rear of a moving object (10), a first connection destination detecting signal for first moving object-to-moving object communication or first roadside unit-to-moving object communication. The second radio (102) transmits, toward the other of the front and rear of the moving object (10), a second connection destination detecting signal for second moving object-to-moving object communication or second roadside unit-to-moving object communication.

Abstract: This wireless communication terminal device includes a control circuit that: causes, after receiving a beacon from a base station device, a connection to be established between the wireless communication terminal device and the base station device using a first control program; if a connection notification request to an external server was received from one or more application programs, uses a second control program, after the establishment of the connection, to output a connection establishment notification to the one or more application programs; and after the connection establishment notification is received, outputs to a communication circuit, via the first control program, a communication request to the external server device by the one or more application programs. The communication circuit of the wireless communication terminal device transmits the communication request to the base station device.

Abstract: A wireless communication device for a road side zone includes a wireless communication circuit that forms beams in plural different directions in a time division scheme in an area which includes plural routes. The wireless communication device for a road side zone includes a recording circuit that records time transition in the direction of the beam used by the wireless communication circuit, which forms the beams in the plural different directions in a time division scheme, for wireless communication with a second wireless communication device provided to a mobile apparatus which moves on any of the plural routes.