Sampled data subsampling apparatus
US4819252A · kind A · utility
110Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1988 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Feb 16, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0664
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An antialias filtering and subsampling system incorporates a compound accumulator including three cascade connected accumulator circuits conditioned to integrate and dump the integrated values of n input samples. The integrated values from the three integrators are scaled, delayed and combined to produce substampled values of a signal which has been filtered according to the transfer function [sin(n.pi.ft)/nsin(.pi.ft)].sup.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.