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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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