Signal processing system and method for enhanced cascaded integrator-comb interpolation filter stabilization
US5880973A · kind A · utility
17Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Nov 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0461
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal processing system and method for stabilizing cascaded integrator-comb (CIC) interpolation filters. The signal processing system includes an overflow detection circuit and reset circuitry. The overflow detection circuit monitors the output of the CIC interpolation filter for an overflow condition which is indicative of filter instability. When an overflow condition is detected, the reset circuitry automatically resets the filter, thereby eliminating the instability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.