Dithered digital gain scalar/summer
US5999114A · kind A · utility
8Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Sep 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/454
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of breaking up idle tones in a converter is used for gain scaling and summing of digital input signals. The invention achieves this object by introducing dither. Further, the invention optimizes the dither introduced by adapting the magnitude of the dither based on the value of the feedback gain factor of the converter. By adapting the dither in this way, the output idle channel noise can be essentially constant and independent of the scaling factor of the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.