发明名称 |
Complex multiplier and twiddle factor generator |
摘要 |
The present invention relates to a complex multiplier and a twiddle factor generator. The complex multiplier according to an embodiment of the invention includes: a first adder/subtracter that adds the real part of the complex number and a first twiddle factor or subtracts the first twiddle factor from the real part of the complex number according to a first signal; a second adder/subtracter that adds the imaginary part of the complex number and a second twiddle factor or subtracts the second twiddle factor from the imaginary part of the complex number according to a second signal; a first multiplier that multiplies the value obtained by the first adder/subtracter by a third twiddle factor and outputs the resulting value; a second multiplier that multiplies the value obtained by the second adder/subtracter by a fourth twiddle factor and outputs the resulting value; a multiplexer that selectively outputs the values output from the first and second multipliers as a real part output signal and an imaginary part output signal according to a third signal; and a controller that provides the first to third signals. According to the present invention, it is possible to achieve a complex multiplier having a simple hardware design. |
申请公布号 |
US8161093(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20070862055 |
申请日期 |
2007.09.26 |
申请人 |
LEE YOUNG-HA;PARK YOUN-OK;SAMSUNG ELECTRONICS CO., LTD.;ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
LEE YOUNG-HA;PARK YOUN-OK |
分类号 |
G06F7/52 |
主分类号 |
G06F7/52 |
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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