发明名称 MAGNETIC RECORDING AND REPRODUCING DEVICE
摘要 <p>PURPOSE:To discriminate easily and accurately an address code even in a fast forward mode, by processing a reproduced address code with a low-pass filter (LPF) having variable cut-off frequency in a fast reproduction mode. CONSTITUTION:The traveling speed of a tape 2 is detected by a tape speed detecting circuit 4, and a control circuit 5 controls an LPF A5 in response to the fast forward speed of the tape 2. Then the cut-off frequency of the LPF A5 varies. Therefore the level is kept at a prescribed value for a reproduced address code which is sent through an amplifier A4 for reproduced address in a fast forward mode. Thus an address code can be discriminated easily and accurately even in a fast forward mode of the tape 2.</p>
申请公布号 JPS5945674(A) 申请公布日期 1984.03.14
申请号 JP19820154508 申请日期 1982.09.07
申请人 PIONEER KK 发明人 YAMAGUCHI TADAHIRO;TAKIZAWA YOSHIYUKI;ISHII TSUNEO;ARIFUKU NAOTO
分类号 G11B15/087;G11B27/10;G11B27/28 主分类号 G11B15/087
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