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专利名称：PCM signal recording system发明人：Hatanaka, Yuji,Takeuchi, Toshifumi,Arai,
Takao
申请号：EP92104701.5申请日：19920318公开号：EP0504849A2公开日：19920923
专利附图：
摘要：A segmentation system in which, in recording a PCM audio signal on a magnetictape or the like, a signal divided in 5 per field is divided into 4 segments per field withhigh capabilities of error correction and a mean value interpolation for burst errors etc.
Regarding the signal of a deep-layer record PCM format, in which each subframe (3 inFigs. 1(a) - 1(c)) is formed of 30 blocks of only even data or odd data and in which dataframes (4) each including 1 subframe of the even data and 1 subframe of the odd data incombination are formed in the number of 5 per frame, the even data items are arrangedin the first half part of a PCM record area on the tape, and the odd data items in thelatter half part. Further, each superblock (1) is constituted by 2 blocks adjacent to eachother, a C2 parity (22) of 3 superblocks being an error correcting parity is extracted from1 subframe, with every 4 of the remaining 12 superblocks forming 1 area block (2), andthe 3 area blocks are located in 3 segments differing from one another. In the case wherethe PCM audio signal is recorded by an HD VTR or the like by utilizing the signalprocessing of the deep-layer record PCM format, the segmentation warrants highcapabilities for mean value interpolation and error correction for burst errors etc.
申请人：HITACHI, LTD.
地址：6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 100 JP
国籍：JP
代理机构：Altenburg, Udo, Dipl.-Phys.
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