Orthogonal signal generation using vector spreading and combining
US7746764B2 · kind B2 · utility
176Cited by
2References
39Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 21, 2005 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0016
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides an approach for quadrature signal generation, which does not require orthogonal reference signals or nearly orthogonal reference signals as an input or given condition. The techniques provided herein can utilize a reference phase shift less than 90° but greater than 0°, along with an inversion to create orthogonal signals. The techniques provided here reduce the number of critical manipulations required from a hardware perspective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.