发明名称 Method and apparatus for recording and reproducing a digital signal with a stationary head
摘要 In a stationary head type PCM recorder having an A/D converter for sampling an analog signal and converting the analog signal to a digital signal, a signal processing circuit including data delay means for adding an error detection and correction code and a predetermined signal to the digital signal for each error correction group of a predetermined number of samples, and a multi-track head for recording an output of the signal processing circuit on a plurality of tracks of a magnetic record medium and reproducing the signals recorded on the magnetic record medium; incorrectability of the error detection and correction code for a burst error in the output analog signal due to a burst error in the reproduced output is reduced by delaying parity data by the error detection and correction code and the digital signal data by different delay times such that the digital signal data are dispersely recorded in a track direction and a tape transport direction, and allotting the delayed data to the multi-track head such that the data of the adjacent sample points are spaced from each other by at least the distribution length of the parity data and the parity data is arranged between the distributed adjacent data.
申请公布号 US4646170(A) 申请公布日期 1987.02.24
申请号 US19850757448 申请日期 1985.07.22
申请人 HITACHI, LTD. 发明人 KOBAYASHI, MASAHARU;OKAMOTO, HIROO;ARAI, TAKAO
分类号 G11B20/12;G11B20/18;(IPC1-7):G11B5/02;G06F11/10;G11B5/09 主分类号 G11B20/12
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