Patent ID: 6138263
Filing Date: 2000-10-24
Classification: G11B,H03M

Abstract:
A data transmission system comprising:a unit for receiving information data to which an error correcting code constituted by internal and external symbols is added;a unit for temporarily storing the received information data;a unit for generating, by using one of the internal and external symbols, error position information regarding the other symbol of said internal and external symbols;a unit for correcting an error in the temporarily stored information data by using said other symbol on the basis of the error position information; anda unit for transmitting the error-corrected information data,wherein a sequence of data of said one of the internal and external symbols substantially corresponds to a reception order of the information data, and when the number of pieces of the error position information exceeds an erasure correcting ability of said other symbol, the error position information is weighted in accordance with continuity of the error position information, and erasure correction using said other symbol is performed by selecting error position information of the number of correctable errors.