公开(公告)号：EP1026680A1

公开(公告)日：2000-08-09

申请号：EP99940615.0

申请日：1999-09-01

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： ABE, Kazutaka ,  MATSUMOTO, Masaharu ,  KAWAMURA, Akihisa ,  SHIMBO, Masatoshi, Room 702 ,  EJIMA, Naoki

IPC分类号： G11B20/10

CPC分类号： G11B20/00007 ,  G11B20/00992 ,  G11B20/10 ,  G11B20/10527 ,  G11B2020/10592 ,  G11B2020/10601 ,  G11B2220/2562

摘要： To reduce the amount of operation in a filter circuit when recording and reproducing signals at sampling frequencies that vary from channel to channel, in reproduction by using multiple speakers of DVD audio.
Upsampling information generation means 6 are provided for obtaining upsampling information indicating whether or not a sample is a sample before upsampling performed by the upsampling means 2a and 2b, an upsampled signal is filtered by a half band filter circuit 3, the filtered signal is subjected to Lossless compression, and the Lossless-compressed data is recorded on a recording medium 8.

摘要翻译： 通过使用DVD音频的多个扬声器进行再现时，以每个通道不同的采样频率记录和再现信号时，减少滤波器电路的操作量。 提供上采样信息生成装置6，用于获得上采样信息，该上采样信息指示在由上采样装置2a和2b执行的上采样之前样本是否是样本，上采样信号由半带滤波器电路3滤波，经滤波的信号经受 无损压缩以及无损压缩数据被记录在记录介质8上。