Combined decimation/interpolation filter for ADC and DAC
US5339263A · kind A · utility
53Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2218/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A COMBINED DECIMATION/INTERPOLATION FILTER FOR ADC AND DAC (analog-to-digital converter and digital-to-analog converter) provides a single filter which may be used both as a decimation filter and as an interpolation filter. It is simple and inexpensive. It gains simplicity and inexpensivenes by carefully selecting the tap weights of the filter, cascading multiple filters, time domain multiplexing the multiple filters into a single filter, and using adders instead of multipliers to provide the tap weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.