Alias-free subband processing
US9496850B2 · kind B2 · utility
21Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digital signal is processed by splitting it into at least two frequency subbands and the two subband signals are downsampled. A filter is applied in at least one of the subband signals. At least one of the phase and magnitude of the subband filtered signals is matched in the transition frequency band between the two subbands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.