发明名称 |
Digital filter apparatus with resonance characteristics |
摘要 |
A basic coefficient to be used for calculation of a transfer function of a digital filter is read out from a ROM according to a cutoff frequency of a desired filter. The value of the coefficient read out from the ROM is gradually varied according to a desired resonance characteristic by an arithmetic circuit so as to reduce the memory capacity of the ROM for storing coefficients.
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申请公布号 |
US4467440(A) |
申请公布日期 |
1984.08.21 |
申请号 |
US19810279630 |
申请日期 |
1981.07.01 |
申请人 |
CASIO COMPUTER CO., LTD. |
发明人 |
SANO, SHIGENORI;HANZAWA, KOHTARO |
分类号 |
H03H17/02;H03H17/04;(IPC1-7):G06F15/31 |
主分类号 |
H03H17/02 |
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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