Switchless combining of multi-carrier coherent and incoherent carriers
US6879220B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2003 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | May 12, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/198
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention is a combiner and a method for selectively combining modulated signals. The combiner includes a first modulator (12) with a selective input which receives at least one input signal and a first carrier signal and which outputs a first output modulated with the first carrier signal; a second modulator (14) with a selective input which receives at least one input signal and a second carrier signal and which outputs a second output modulated with the second carrier signal; means for combining (24′) the first and second amplified output signals to provide a combined output; and wherein the first and second carrier signals are selectably coherent or incoherent with the selection of first and second coherent carrier signals causing the combined output to comprise a single carrier of higher power and the selection of incoherent carrier signals causing the combined output to comprise two distinguishable carriers of lower power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.