Patent ID: 6205568
Filing Date: 2001-03-20
Classification: H03M

Abstract:
A data transmission system comprising:a receiving device for receiving data to which a pair of error correction codes is added, one error correction code having a data arrangement identical with the order in which the receiving device receives the data;a temporary storage device for storing said data temporarily;an error sensing device for sensing errors in one error correction code, before storing said data in the temporary storage device, said error sensing device including a syndrome computing device which calculates a syndrome for one of said pair of error correction codes consisting of product codes;an error correcting device for correcting errors in said data stored in said temporary storage device, said error correcting device executing erasure correction of the other error correction code by using information on errors in the one error correction code sensed at said error sensing device; anda transmitting device for transmitting the data whose errors have been corrected by the error correcting device,wherein said error sensing device performs error detection using a specific number of syndromes instead of using all of the syndromes for the one error correction code.