Abstract: According to one embodiment, a platooning operation system organizes a platoon by making a plurality of vehicles cooperate. The platooning operation system includes an application acceptance processor and a platoon organization processor. The application acceptance processor accepts an application of a vehicle for admission to the platoon. The platoon organization processor which selects a platoon to which the vehicle is to be admitted or determines possibility of admission of the vehicle to the platoon, based on at least one of information on a driver driving the vehicle and information on the vehicle.

Abstract: The DVD player includes: a reproducing unit reproducing audio data and video data; a first transmission unit converting, into first data in accordance with a first standard, the audio data and video data reproduced by the reproducing unit, and transmitting the first data to the television; a second transmission unit converting, into second data in accordance with a second standard, the audio data and video data reproduced by the reproducing unit, and transmitting the second data to the television; a display determination unit determining whether or not to display an error message regarding an error occurring in the first transmission unit based on whether or not the video is displayed using the first data; and a display control unit causing the message display unit to display the error message according to a result of the determination by the display determination unit.

Abstract: A video data processing device configured to send video data to a sink device includes: a log generation unit configured to generate log information; a memory configured to receive from the sink device sink device information indicating a format of video which the sink device can display, and store the received sink device information; a log receiving unit configured to receive log information stored in the sink device; a log comparison unit configured to determine whether or not the log information generated in the log generation unit matches the log information stored in the sink device; and a log sending unit configured to send the log information generated in the log generation unit to the sink device. When the log comparison unit determines that both the log information matches, video data is sent to the sink device based on the sink device information in the memory.

Abstract: The DVD player includes: a reproducing unit reproducing audio data and video data; a first transmission unit converting, into first data in accordance with a first standard, the audio data and video data reproduced by the reproducing unit, and transmitting the first data to the television; a second transmission unit converting, into second data in accordance with a second standard, the audio data and video data reproduced by the reproducing unit, and transmitting the second data to the television; a display determination unit determining whether or not to display an error message regarding an error occurring in the first transmission unit based on whether or not the video is displayed using the first data; and a display control unit causing the message display unit to display the error message according to a result of the determination by the display determination unit.