Walsh-Hadamard decoder
US6996163B2 · kind B2 · utility
21Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Sep 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/70935
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a Walsh-Hadamard decoder can have a hardware efficient Fast Hadamard Transform (“FHT”) engine. In one embodiment, the FHT engine can include an input to receive an input sequence to be decoded into a Walsh-Hadamard codeword. The FHT engine can further include a controller to correlate the received input sequence with a plurality of Walsh-Hadamard codewords using two add/subtract modules. In one embodiment, the two add/subtract modules operate in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.