Apparatus and method for selectively performing Fast Hadamard Transform or Fast Fourier Transform
US7428563B2 · kind B2 · utility
3Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Jul 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an apparatus for performing both FHT (Fast Hadamard Transform) and FFT (Fast Fourier Transform). This apparatus determines the phase coefficients as constantly “1” when performing the FHT, and changes the input order of input data to a reverse order of bits when performing the FFT. In addition, the apparatus, which can process a plurality of input data sets simultaneously, classifies the received signals into multi-path signals and multi-antenna signals, thus processing the multi-path signals separately from the multi-antenna signals, or directly processes multi-antenna signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.