Digital signal transcoder and method of transcoding a digital signal
US5610942A · kind A · utility
29Cited by
9References
14Claims
0Family size
Inventors
Key dates
| Filing date | Mar 7, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Mar 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and device for transcoding a digital signal first oversamples the input signal, converts the sampling rate to an oversampled output signal, filters the signal to reduce unwanted bands and decimates the oversampled output signal to produce a transcoded signal having the target sampling rate. This allows the conversion to be implemented in the composite domain, requiring a single sampling rate converter, and significantly reduces the complexity of the filter required to filter the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.