Vector processor having instruction set with vector convolution function for fir filtering
US9280315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Nov 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A vector processor is provided having an instruction set with a vector convolution function. The disclosed vector processor performs a convolution function between an input signal and a filter impulse response by obtaining a vector comprised of at least N1+N2-1 input samples; obtaining N2 time shifted versions of the vector (including a zero shifted version), wherein each time shifted version comprises N1 samples; and performing a weighted sum of the time shifted versions of the vector by a vector of N1 coefficients; and producing an output vector comprising one output value for each of the weighted sums. The vector processor performs the method, for example, in response to one or more vector convolution software instructions having a vector input. The vector can comprise a plurality of real or complex input samples and the filter impulse response can be expressed using a plurality of coefficients that are real or complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.