发明名称 MAGNETIC RECORDING AND REPRODUCING DEVICE
摘要 <p>PURPOSE:To prevent the quantity of a reproduced image from being deteriorated even when an envelope level becomes too high or too low. CONSTITUTION:A gain switching circuit 5 is mounted in a VTR, and a magnetic tape is reproduced to make autotracking act. When the envelope level becomes too high or too low. gains is switched. Thus, the quality of the reproduced image is prevented from being deteriorated caused by a tracking error when the envelope level is too high or too low.</p>
申请公布号 JPH06295495(A) 申请公布日期 1994.10.21
申请号 JP19930079328 申请日期 1993.04.06
申请人 HITACHI LTD;HITACHI GAZOU JOHO SYST:KK 发明人 TERASAWA KAZUFUMI
分类号 G11B5/588;G11B15/467;H04N5/782;H04N5/7826;(IPC1-7):G11B15/467 主分类号 G11B5/588
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