Digital-to-analog converter including integral digital audio filter
US5592403A · kind A · utility
9Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1993 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Mar 11, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0223
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital signal processor (DSP) circuit is configured to recursively retrieve and process pairs of data points in a symmetric digital filter. The data points are retrieved from an external source (e.g., compact disk) at a first frequency, and processed within the DSP at a second frequency. The DSP employs a floating pointer scheme, which effectively functions a buffer to thereby compensate for jitter or drift between the first and second frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.