상세정보
등록 복소 곱셈기 및 회전 인자 생성기
- 출원번호
- 11862055 (2007.09.26)
- 공개번호
- 20080140747 (2008.06.12)
- 등록번호
- 8161093 (2012.04.17)
- 출원국
- 미국
- 초록
- 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.