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:
Dec. 18, 2007
Filed:
Apr. 25, 2002
Tony Fondén, Spånga, SE;
Richard Hellberg, Huddinge, SE;
Tony Fondén, Spånga, SE;
Richard Hellberg, Huddinge, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A power amplifier comprises a level-discretization modulator () and a mixing and amplifying stage (), in combination with a properly designed negative feedback path. The feedback path forms an error compensation loop together with a properly selected forward path. The forward path includes at least the mixing and amplifying stage (), which provides frequency up-conversion to the radio frequency band and switch-based amplification. The negative feedback path includes a down-conversion mixer () for down-conversion to the initial frequency band, and compensates for distortion caused by components of the forward path.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile