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    • 130. 发明公开
    • Combined DVD/CD data processor
    • Kombinierter DVD- / CD-Datenprozessor
    • EP1132912A1
    • 2001-09-12
    • EP01202036.8
    • 1998-07-13
    • SAMSUNG ELECTRONICS CO. LTD.
    • Choi, Hoon-Soon
    • G11B20/10H03M13/00
    • H03M13/1515G11B20/14G11B20/1426G11B20/18G11B20/1809G11B2020/1461H03M13/151H03M13/1555H03M13/2924
    • 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.
    • 在DVD / CD播放机中使用的DVD / CD(数字视频盘/光盘)数据处理器。 DVD / CD数据处理器包括用于接收脉冲流输入以产生PLL时钟的PLL(锁相环)(52); 用于根据PLL时钟锁存脉冲流的帧/ ID同步检测器(54),以产生符号时钟; 解调器(56),用于EFM +根据DVD模式中的符号时钟解调脉冲流;以及EFM,以CD模式根据符号时钟解调脉冲流; 用于根据预定码长和误差校正范围对输入数据进行纠错的ECC解调器(62),所述预定码长和纠错范围在DVD和CD模式中具有不同的值; 用于存储解调数据以向ECC解调器提供存储在其中的解调数据的存储器(58) 用于以DVD模式对存储在存储器(58)中的纠错数据进行解扰的解扰器(60); 以及用于以CD模式处理存储在存储器中的纠错数据的CD音频处理器(64)。