Patent ID: 6260169
Filing Date: 2001-07-10
Classification: G11B,H03M

Abstract:
A device for performing header and row correction on rows of sector data that are read sequentially from a DVD medium, said device comprising:a pair of row buffers for sequentially receiving and storing a current row of said sector data, wherein when one of the pair of row buffers is receiving a next row of said sector data and is functioning as a receive buffer, and another one of the pair of row buffers stores the current row of said sector data and is functioning as a correction buffer;a syndrome generator receiving said current row of said sector data and being configured to sequentially generate a row syndrome for said current row as said next row is being received by said receive buffer, said row syndrome configured to indicate whether an error is present in said current row that is stored in said correction buffer; anderror correction circuitry coupled to said syndrome generator and being configured to receive said row syndrome associated with the current row that is stored in said correction buffer, and wherein said error correction circuitry is configured to correct said error that is present in said current row that is contained in the correction buffer while the next row is being received in the receive buffer.