Cascaded comb integrator interpolating filters
US5592517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Aug 28, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A robust interpolator performs internal data correction to avoid catastrophic errors. The interpolator includes a filter connected to an integrator by both a feedforward path and an element that increases the data rate of the output of the filter. The filter processes signals arriving at an input data rate to produce differentiated data and filtered data. The filtered data represents an output of the integrator in the absence of error. The integrator receives the differentiated data from the element at a data rate higher than the input data rate, and receives the filtered data via the feedforward path. A transmultiplexer producing a wideband signal from two or more narrowband signals employs the interpolator to increase the data rate of its output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.