发明授权
- 专利标题： Arrangement for recording clock run-in codewords at the beginning of a track on a magnetic record carrier
- 专利标题（中）： 记录时钟运行编码器的安排在磁记录载体上开始跟踪
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申请号： US711483申请日： 1991-06-06
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公开(公告)号： US5245483A公开(公告)日： 1993-09-14
- 发明人: Wilhelmus J. Van Gestel
- 申请人： Wilhelmus J. Van Gestel
- 申请人地址： NY New York
- 专利权人： U.S. Philips Corporation
- 当前专利权人： U.S. Philips Corporation
- 当前专利权人地址： NY New York
- 优先权： NLX9002839 19901221
- 主分类号： G11B20/12
- IPC分类号： G11B20/12 ; G11B5/008 ; G11B5/09 ; G11B5/58 ; G11B5/584 ; G11B15/46 ; G11B20/10 ; G11B20/14 ; G11B27/032 ; G11B27/30 ; H04N5/76 ; H04N5/92 ; H04N5/926 ; H04N9/808
摘要：
In a helical scan recorder, a sequence of n-bit first codewords (W.sub.1) and n-bit second codewords (W.sub.2) if any, are stored in second track parts (TP2) which form the beginning of the tracks (T.sub.1, T.sub.2 . . . ), these codewords having a form so that both a PR1 detection and a PR4 detection is possible on reproduction. The second codewords are the inverses of the first codewords. An optional form of the first codeword may be: 0001110001110000011100011.
公开/授权文献
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