Back to results
US 9,313,055 B2Granted
Transmitter linearization
AssigneeSequans Communications
InventorThomas Winiecki
Life of this patent
Estimating the term…
Abstract
An apparatus and method for reducing unwanted spectral emissions of a complex signal to be transmitted comprising calculating the nth power of the complex signal to be transmitted, calculating the complex conjugate of the nth power of the complex signal to be transmitted, applying a scaling factor to the complex conjugate to form a scaled correction signal, and adding the scaled correction signal to the signal to be transmitted.
Claims16
A method of reducing unwanted spectral emissions of a complex signal for transmission comprising:
- calculating an nth power of the complex signal for transmission;
- calculating a complex conjugate of the nth power of the complex signal for transmission;
- applying a scaling factor to the complex conjugate to form a scaled correction signal;
- and
- adding the scaled correction signal to the complex signal for transmission such that unwanted emissions are reduced when the signal is transmitted.
2 more elements
An apparatus arranged to reduce unwanted spectral emissions of a signal for transmission comprising:
- a first processor block arranged to calculate an nth power of a complex signal for transmission;
- a second processor block arranged to calculate a complex conjugate of the nth power of the complex signal for transmission;
- a scaling block arranged to apply a scaling factor to the complex conjugate to form a scaled correction signal;
- and
- a summing block arranged to add the scaled correction signal to the complex signal for transmission such that unwanted emissions are reduced when the signal is transmitted.
2 more elements
Dependencies are inferred from the claim text.