Efficient convolution method and apparatus
US6574649B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/15
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A convolution method and apparatus of time domain convolving an input signal with a second signal is disclosed comprising the steps of; dividing the second signal into a series of segments; determining a magnitude envelope for each of the segments; scaling the signal values within each segments relative to the envelope to produce corresponding segment scaled signal values; multiplying the segment scaled values by a corresponding input signal value to produce corresponding segment output values; scaling the segment output values by a segment scale factor to produce corresponding scaled segment outputs; and adding the scaled segment output to produce a time domain output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.