| 摘要 |
<p>A combined DVD/CD (Digital Video Disk/Compact Disk) data processor used in a DVD/CD player. The DVD/CD data processor includes a PLL (Phase Locked Loop) (52) for receiving a pulse stream input to generate a PLL clock; a frame/ID synchronization detector (54) for latching the pulse stream according to the PLL clock, to generate a symbol clock; a demodulator (56) for EFM+ demodulating the pulse stream according to the symbol clock in a DVD mode, and EFM demodulating the pulse stream according to the symbol clock in a CD mode; an ECC demodulator (62) for error-correcting input data according to a predetermined code length and error correction range, the predetermined code length and error correction range having different values in the DVD and CD modes; a memory (58) for storing the demodulated data to provide the ECC demodulator with the demodulated data stored therein; a descrambler (60) for descrambling the error corrected data stored in the memory (58), in the DVD mode; and a CD audio processor (64) for processing the error corrected data stored in the memory, in the CD mode. <IMAGE></p> |
