发明名称 Tracking error detector with comparison of amplitude detected pilot signals leaking in from tracks adjacent to the target track
摘要 A magnetic recording and reproducing apparatus includes: a recorder for recording information signals so as to form tracks obliquely on a magnetic tape, and for recording pilot signals so that the frequency may differ between different modes such as SP and LP; a reproducing head for reproducing recorded information; an error detecting circuit for comparing the level difference of pilot signals recorded in both tracks adjacent to the track to be scanned by there producing head and for outputting a tracking error signal; and a controller for controlling the feed of the magnetic tape so that the tracking error signal may be balanced. Preferably, in the LP mode, a pilot signal of a higher frequency than that used in the SP mode is recorded. In a tracking error detector for a magnetic recording and reproducing apparatus for detecting the pilot signal, the reproduced signals are sampled at a frequency at a common multiple of each pilot frequency, a pilot signal is detected, and a tracking error signal is output.
申请公布号 US5754356(A) 申请公布日期 1998.05.19
申请号 US19960612816 申请日期 1996.03.22
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 HONJO, KENICHI;MARUOKA, TOSHIHIKO;ISAKA, HARUO;GOTOU, MAKOTO;ICHIKAWA, KEI;HASHIMOTO, KIYOKAZU;SHIMOTASHIRO, MASAFUMI
分类号 G11B15/087;G11B15/18;G11B15/467;(IPC1-7):G11B5/02;G11B27/10 主分类号 G11B15/087
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