Method and apparatus for converting sampling frequencies
US4953117A · kind A · utility
38Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0628
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A sampling frequency converter converts sampled input data having an input sampling frequency into sampled output data having a different output sampling frequency. The relative ratio between input data sample periods and output data sample periods is determined and averaged over a predetermined duration. A filter coefficient generator responds to the averaged input/output sampling period ratio for generating data representing a set of predetermined filter coefficients which are used by a sampling filter circuit to convert the input data samples into output data samples of a different sampling frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.