发明名称 |
Reproducing apparatus using pilot signal crosstalk for tracking control and using pilot signals to eliminate a back lock condition |
摘要 |
An information signal reproducing apparatus for reproducing information signals from a recording medium in which a pilot signal component having a predetermined frequency is superimposed on the information signals at every other track of a plurality of parallel tracks. A tracking error signal is formed from pilot signal crosstalk from tracks in which the pilot signal component is not superimposed. The tracking error signal is modified using the signal on which the pilot signal component is superimposed. To facilitate such a modification, no pilot signal is superimposed in a second area of the track in which the pilot signal component is superimposed in a first area thereof, and the pilot signal is superimposed in the second area of the track in which no pilot signal component is superimposed in the first area thereof.
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申请公布号 |
US6005741(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19960749622 |
申请日期 |
1996.11.18 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TAKAYAMA, NOBUTOSHI;TANAKA, SHUYA |
分类号 |
G11B5/592;(IPC1-7):G11B5/584 |
主分类号 |
G11B5/592 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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