Patent ID: 6160777
Filing Date: 2000-12-12
Classification: G11B

Abstract:
An apparatus for generating a block synchronous signal for a digital versatile disc, comprising:a byte clock generator for generating a byte clock and a byte frame synchronous signal in response to a bit clock and a frame synchronous signal to convert bit-unit input data into byte-unit data;a first delay for delaying said frame synchronous signal from said byte clock generator in response to said byte clock therefrom;a second delay for delaying data horizontally decoded by an RS decoder in response to said byte clock from said byte clock generator;a third delay for delaying a sector synchronous signal in response to said byte clock from said byte clock generator;an identifier error correction code decoder for decoding output data from said second delay in response to an output sector synchronous signal from said third delay;a fourth delay for delaying an output frame synchronous signal from said first delay in response to said byte clock from said byte clock generator while said identifier error correction code decoder decodes said output data from said second delay and applies the delayed frame synchronous signal to a row address generator;a block synchronous signal generator for generating said block synchronous signal and a block sector identifier in response to sector identifiers corrected by said identifier error correction code decoder and an output sector synchronous signal therefrom, said block sector identifier corresponding to an integer multiple of 16;a block synchronous signal compensator for compensating for an error in said block synchronous signal generated by said block synchronous signal generator in response to an output sector synchronous signal and said block sector identifier therefrom;a fifth delay for delaying an output frame synchronous signal from said block synchronous signal generator in response to an output byte clock therefrom; anda sixth delay for delaying output data from said block synchronous signal generator in response to said output byte clock therefrom.