发明名称 |
Pade approximation convert circuit of direct digital frequency synthesizer |
摘要 |
This invention relates to Pade approximation convert circuit of the direct digital frequency synthesizer in which a multiplier receives and multiplies a first input signal and a variable signal so as to produce a multiplication signal; a divider receives and divides a second input signal and a variable signal so as to produce a division signal; an adder receives and adds the multiplication signal and the division signal so as to generate an output signal, that is then returned back to the divider. A quarter period of a sinusoidal wave signal is completed by the proceeding of direct calculation two times such that the time for the calculation of a complete sinusoidal wave can be saved and the area of the calculation circuit can be reduced. |
申请公布号 |
US8060547(B2) |
申请公布日期 |
2011.11.15 |
申请号 |
US20070979964 |
申请日期 |
2007.11.13 |
申请人 |
JENG SHIANN SHIUN;LIN HSING CHEN;TOU WEI LI;HORNG PAO KUEI;CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY, ARMAMENTS BUREAU, M.N.D. |
发明人 |
JENG SHIANN SHIUN;LIN HSING CHEN;TOU WEI LI;HORNG PAO KUEI |
分类号 |
G06F1/02 |
主分类号 |
G06F1/02 |
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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