发明名称 |
Noise eliminating apparatus, weight measurement apparatus, method of eliminating noise, and method of designing digital filter |
摘要 |
A filter coefficient calculator of a weight measurement apparatus calculates filter coefficients using a predetermined arithmetic expression and outputs them to a signal processor. The signal processor carries out a filtering process on a weighing signal using the filter coefficients. The arithmetic expression includes a spectrum parameter specifying a band position of an attenuation band where attenuation must be locally enhanced. A user can input a value of the parameter via a data entry part. Each band is specified by the spectrum parameter not as the lowest limit value of a normalized angular frequency, but as the amount of deviation (the amount of displacement) from its center frequency. |
申请公布号 |
US2007095123(A1) |
申请公布日期 |
2007.05.03 |
申请号 |
US20060589166 |
申请日期 |
2006.10.30 |
申请人 |
ISHIDA CO., LTD. |
发明人 |
AIKAWA NAOYUKI;WAKASA YUKIO;NAKATANI MAKOTO |
分类号 |
G01F25/00 |
主分类号 |
G01F25/00 |
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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