发明名称 MAGNETIC RECORDING AND REPRODUCING DEVICE
摘要 <p>PURPOSE: To obtain a magnetic recording and reproducing device which can reduce a noise of a magnetic recording and reproducing device without changing outer package and the like of a conventional magnetic recording and reproducing device. CONSTITUTION: This device has an active noise control device canceling a noise generated in a head drum device 1 being a noise generating source. The active noise control device a control loudspeaker 2, plural error detectors 3a, 3b detecting an error sound of a generated sound of the control loudspeaker and a noise generating source, and a noise control circuit which controls a sound generated by the control loudspeaker 2 so that detected signals of the error detectors 3a, 3b are inputted and a noise of the head drum device 1 is canceled.</p>
申请公布号 JPH08147793(A) 申请公布日期 1996.06.07
申请号 JP19940292489 申请日期 1994.11.28
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 TAKEUCHI ATSUSHI;KOBAYASHI NAGAO;KOZAI TAKU;NAKAI HIROSHIGE;TERAI KENICHI
分类号 G11B15/00;G10K11/178;(IPC1-7):G11B15/00 主分类号 G11B15/00
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