Method and system for communication spectral backward compatibility
US7394868B2 · kind B2 · utility
0Cited by
3References
27Claims
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Key dates
| Filing date | Jun 21, 2007 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Communications method including the procedures of modulating a second generation carrier signal, with a first generation Baseband bandwidth signal, when transmitting to first generation devices, and, modulating the second generation carrier signal, with a second generation Baseband bandwidth signal, when transmitting to second generation devices, wherein the first generation Baseband bandwidth signal, is shaped so as to recreate a first generation signal, when up-sampled and modulated with a second generation carrier signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.