Transformation between time domain and frequency domain based on nearly orthogonal filter banks
US9871685B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | May 2, 2013 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Aug 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26416
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A filter bank for signal decomposition is provided. The filter bank comprises a plurality of filter units each of which has one input and two outputs forming two paths whose transfer functions are complementary to each other, where the plurality of filter units are connected to form a tree structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.