Amplitude enhanced frequency modulation
US8965290B2 · kind B2 · utility
4Cited by
116References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for transmitting a spectrally efficient signal. The method includes frequency modulating an input signal in a transmitter to generate a first frequency modulated (FM) signal and generating in the transmitter an amplitude modulated (AM) component based at least on the input signal. The method may then include generating a second FM signal based at least on the AM component and the first FM signal and sending the second FM signal to a receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.