Discrete fourier converter
专利汇可以提供Discrete fourier converter专利检索，专利查询，专利分析的服务。并且PURPOSE:To decrease the necessary multiplication number and the input addition number by giving previously the 2-point discrete Fourier conversion to the two input signals against a complex conjugate symmetric matrix element and then giving the real or imaginary number multiplication to the obtained real or imaginary number and furthermore with the 2-point discrete Fourier conversion given to the output. CONSTITUTION:The 2-point descrete Fourier conversion is given previously to a pair of inputs f1, f6, f2, f5 plus f3 and f4 which are multiplied by the complex conjugate multiplication term and through 2-point DFT circuits 11-13. Then the real numbers of real number terms Xn-X3n of the multiplication terms are multiplied addition terms of to the output of adder circuit 14 in circuits 11-13 each through multipliers 16-18, and imaginary number parts jYn-jYan of multiplication terms are multiplied through imaginary number multipliers 21-23 to the subtration term which received the subtraction via subtractor 15. Futhermore, the output of multipliers 16-18 are added together through adders 24 and 25, and input f0 is added via adder 26. This addition result is applied to DFT circuit 29 in the form of the 1st terms, and the outputs of multipliers 21-23 are added through adders 27 and 28. Thus the addition result of the 2nd term is obtained to be applied to circuit 29, and the 2-point discrete Fourier conversion is carried out through circuit 29.，下面是Discrete fourier converter专利的具体信息内容。
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