Abstract: A control device includes a first memory, a first processor coupled to the first memory, a second memory, and a second processor coupled to the second memory. The first processor is configured to store log information of an information processing device into the first memory. The second processor is configured to determine whether the log information is stored in the first memory. The second processor is configured to read the log information from the first memory when the second processor determines that the log information is stored in the first memory. The second processor is configured to write the read log information into the second memory.

Abstract: A receiver includes a processor. The processor is configured to receive first data blocks and a first parity block from a transmitter. The first data blocks are obtained by dividing first transmission data at a predetermined size. The first parity block is generated on basis of the first data blocks. The processor is configured to restore a first missing block on basis of first received blocks and the first parity block. The first missing block is an unsuccessfully received block of the first data blocks. The first received blocks are successfully received blocks of the first data blocks. The first parity block is successfully received.