Patent attributes
A communication system comprises a transmitting device and a receiving device. The transmitting device includes means for connecting an addition bit string containing at least one bit 1 to information data, means for generating a CRC code corresponding to a remainder at a polynomial ring on a Galois field defined modulo 2 based on a predetermined generator polynomial of the information data connected with the addition bit string, means for transmitting the information data connected with the CRC code. The receiving device includes means for receiving the data, means for performing an addition of the data received and the addition bit string at a polynomial ring on a Galois field defined modulo 2, means for making a decision as to the presence or absence of a transmission error by determining the remainder at the polynomial ring on the Galois field defined modulo 2 based on the generator polynomial of data.
