The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2013
Filed:
Apr. 10, 2006
Tony Fonden, Kista, SE;
Richard Hellberg, Huddinge, SE;
Mats Klingberg, Enskede, SE;
Spendim Dalipi, Sollentuna, SE;
Tony Fonden, Kista, SE;
Richard Hellberg, Huddinge, SE;
Mats Klingberg, Enskede, SE;
Spendim Dalipi, Sollentuna, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A method for compensating signal distortions in multiple transmitting branches () entering a composite amplifier (). According to the invention the method comprises the steps of: —providing (S) one or more input signals (x) to the composite amplifier. —observing (S) an output signal (z) from the composite amplifier () for each provided input signal; —deriving (S) an error in each output signal (z) by comparing the output signal with an ideal output signal, said error being caused by said signal distortions; —deriving (S) the individual contribution from each transmitting branch () to the error by utilizing a composite amplifier model, said composite amplifier model comprising information about the contribution from each constituent amplifier () to the output signal for each provided input signal: —compensating the signal distortions in the transmitting branches () accordingly.