发明名称 |
Noise masking device and method for use in an image forming apparatus |
摘要 |
A noise masking device for a low-cost laser beam printer, a copier or the like for performing a noise masking with respect to a noise of a drive motor of an image forming apparatus while affording no psychological unpleasant feeling due to a frequency fluctuation thereof. The noise masking device of the image forming apparatus having the drive motor which becomes a source of the noise upon operation thereof includes signal generating means for generating a correlation signal which correlates with the noise, a speaker for generating a masking sound which masks the noise and masking sound control means for controlling the speaker to vary the masking sound corresponding to the variation in the correlation signal.
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申请公布号 |
US5867748(A) |
申请公布日期 |
1999.02.02 |
申请号 |
US19960738496 |
申请日期 |
1996.10.28 |
申请人 |
FUJI XEROX CO., LTD. |
发明人 |
TAKAHASHI, MASAHIRO;SASAHARA, SHINJI |
分类号 |
B41J29/10;G03G15/00;G10K11/175;(IPC1-7):G03G21/00 |
主分类号 |
B41J29/10 |
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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