Amplitude modulator
US8064540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2010 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jul 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C2200/0079
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for amplitude modulating a carrier signal according to one embodiment includes splitting the carrier signal into first and second paths; phase modulating the carrier signal on the first path; phase modulating the carrier signal on the second path; combining the phase modulated carrier signal on the first path with the phase modulated carrier signal on the second path for generating an amplitude modulated output signal; and wherein a first feedback loop couples the amplitude modulated output signal to circuitry for phase modulating the carrier signal on the second path but not to circuitry for phase modulating the carrier signal on the first path, the first feedback loop being for reducing a residual phase variation of the amplitude modulated output signal. Additional systems and methods are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.