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:
Sep. 20, 2005
Filed:
Nov. 23, 2000
Applicant:
Scott Allan Leyonhjelm, Sundbyberg, SE;
Inventor:
Scott Allan Leyonhjelm, Sundbyberg, SE;
Assignee:
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B001/04 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to linearization of a radio frequency (RF) power amplifier () by predistortion. Digital predistortion is performed () on received digitized base-band input signals to compensate for amplifier distortion. The resulting signal is converted to an analog signal via two D/A converters (), after which analog frequency conversion is performed () on the analog signal to achieve a radio frequency (RF) signal. This radio frequency signal is exposed to analog predistortion () and thereafter amplified by the power amplifier.