发明名称 Buried servo recording system having dual transducers.
摘要 <p>The magnetic recorder has a pair of first and second transducers (5a,5b) arranged in the longitudinal direction of a record track (6). The magnetic recorder exchanges signals with a magnetic record medium (1) having a servo control signal prerecorded in a lower layer (3a) of said medium (1). A recording circuit (8) is connected to the first transducer (5a) for recording a data signal along the record track (6) in an upper layer (3b) of the medium (1). A reading circuit (9,10) is connected to one of the first and second transducers (5a,5b) for reading the recorded data signal. The second transducer (5b) is connected to a servo control circuit connected for reading the prerecorded servo control signal (12 to 15) and deriving therefrom a position error signal in response to which the position of the transducers (5a,5b) is controlled.</p>
申请公布号 EP0242887(A2) 申请公布日期 1987.10.28
申请号 EP19870106964 申请日期 1983.11.02
申请人 NEC CORPORATION 发明人 TANAKA, HIDEO
分类号 G11B5/596;G11B5/31;G11B5/39;G11B5/58;(IPC1-7):G11B5/58 主分类号 G11B5/596
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