Patent ID: 6662335
Filing Date: 2003-12-09
Classification: G11B,H03M

Abstract:
An apparatus for accessing DVD data, comprising:a row data interface, for receiving a row data from a DVD disc; a row data buffer, coupled to the row data interface, to store the row data from the row data interface; a first inner-code decoder, coupled to the row data interface, for performing an inner-code parity decoding to the row data stored in the row data buffer and generating an inner-code decoded data, the inner-code decoded data is stored into a memory, the inner-code decoded data is also sent to an error detection code generator from the inner-code decoder if the inner-code decoded data is required for generating an error detection code, the error detection code generator generates error detection codes for the inner-code decoded data sent from the inner-code decoder, the generated error detection codes are stored into the memory; an RSPC (Reed Solomon Product Code) decoder, for reading the error detection codes from the memory, storing the error detection codes into an error detection code file other than the memory, and performing outer-code parity decoding on the data stored in the memory when the data stored in the memory is sufficient to be assembled as a complete data block.