Fast Fourier transform device for analyzing specific frequency components of input signal
US11481470B2 · kind B2 · utility
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7References
14Claims
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Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/142
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a fast Fourier transform device for analyzing specific frequency components of an input signal. The fast Fourier transform device includes an address generator that generates an address, based on a first frequency index corresponding to a first frequency, an FFT coefficient table that outputs a first Fourier transform coefficient corresponding to the generated address among Fourier transform coefficients of the first frequency index, and an operator that calculates a frequency characteristic of an input signal associated with the first frequency, based on the input signal and the first Fourier transform coefficient.
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