Digital signal recording apparatus, and related method
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United States of America Patent
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Sep 11, 2001
Grant Date -
Jun 7, 2001
app pub date -
Jan 18, 2001
filing date -
Nov 10, 1997
priority date (Note) -
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Abstract
A digital signal recording apparatus includes an amble generator for generating an amble signal representing a bit-sequence amble pattern. The bit-sequence amble patter can be detected and reproduced by a partial-response detection system 'PR(1, 0, -1)' as a detected amble pattern having a period of state inversions which is shorter than a period of state inversions in a detected amble pattern corresponding to a recorded amble pattern of alternation of '1' and '0'. The amble signal generated by the amble generator and a first digital information signal are combined into a second digital information signal on a time sharing basis. The second digital information signal is recorded on a magnetic recording medium. For example, the bit-sequence amble pattern represented by the amble signal has repetition of six bits of '111000'.
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