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热词
    • 1. 发明授权
    • Method and apparatus for recording a digital information signal
    • 用于记录数字信息信号的方法和装置
    • US4697212A
    • 1987-09-29
    • US705331
    • 1985-02-15
    • Eiichi OsawaMasato TanakaMamoru YoshizawaJun NakaiYuichi Kojima
    • Eiichi OsawaMasato TanakaMamoru YoshizawaJun NakaiYuichi Kojima
    • G11B5/008G11B5/09G11B20/12G11B20/18G11B5/00
    • G11B20/1866G11B20/1204G11B20/1809G11B5/0083G11B5/00878G11B5/00891G11B20/1202G11B2020/10546G11B2020/1087G11B2020/10879G11B2220/90
    • A method of recording a digital data signal, such as an audio PCM signal, onto a recording medium in the longitudinal direction thereof, together with an apparatus which is suitable for this recording method. Even-numbered words and odd-numbered words in a digital data signal are recorded on a first track group and a second track group, respectively, which are separated from each other in the widthwise direction of a recording medium, to prevent a series of words becoming error words because of, for example, a flaw in the recording medium in the longitudinal direction thereof. The data format is changed at the input and output of a recording encoder to enable an error correction code and a recording circuit to be used in common for digital tape recorders which have different numbers of tracks, e.g., n tracks and 2n tracks. When an error correction code is recorded in such a manner that one word in the digital data signal is divided into a plurality of symbols which are formed into an error correction code, a plurality of symbols of the same word are recorded at a position at which error correlation is strong, making effective use of the error correction capacity of the error correction code.
    • PCT No.PCT / JP84 / 00313 Sec。 371日期1985年2月15日 102(e)日期1985年2月15日PCT Filed 1984年6月15日PCT公布。 出版物WO85 / 00068 1985年1月3日。一种将数字数据信号(诸如音频PCM信号)沿其纵向方向记录到记录介质上的方法以及适用于该记录方法的装置。 数字数据信号中的偶数字和奇数字分别记录在在记录介质的宽度方向上彼此分离的第一轨道组和第二轨道组上,以防止一系列单词 由于例如记录介质在其纵向方向上的缺陷而成为错误词。 数据格式在记录编码器的输入和输出处被改变,以使纠错码和记录电路能够被共同地用于具有不同数目的磁道,例如n个磁道和2n个磁道的数字磁带记录器。 当以使数字数据信号中的一个字被分成形成为纠错码的多个符号的方式记录纠错码时,同一个字的多个符号被记录在 误差相关性较强,有效利用纠错码的纠错能力。