Title:
【発明の名称】磁気記録担体上のトラックの開始部にクロックのロック用コード語を記録する方法及び記録担体
Document Type and Number:
Japanese Patent JP3377194
Kind Code:
B2
Abstract:
In a helical scan recorder a sequence of n-bit first codewords (W1) and n-bit second codewords (W2) if any, are stored in second track parts (TP2) which form the beginning of the tracks (T1, T2 ....) which codewords have 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:
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Inventors:
Wilhelms Jacobs van Gestel
Application Number:
JP2001017088A
Publication Date:
February 17, 2003
Filing Date:
January 25, 2001
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
G11B20/12; G11B5/008; G11B5/09; G11B5/58; G11B5/584; G11B15/46; G11B20/10; G11B20/14; G11B27/032; G11B27/30; H04N5/76; H04N5/926; H04N9/808; H04N5/92; (IPC1-7): G11B20/12; G11B5/09; G11B20/14
Attorney, Agent or Firm:
Susumu Tsugaru (1 person outside)