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:
Nov. 14, 2006
Filed:
Oct. 22, 2004
Noureddine Outaleb, Nepean, CA;
Philip Holder, Bishops Stortford, GB;
John Ilowski, Nepean, CA;
Graham Dolman, Saffron Walden, GB;
Noureddine Outaleb, Nepean, CA;
Philip Holder, Bishops Stortford, GB;
John Ilowski, Nepean, CA;
Graham Dolman, Saffron Walden, GB;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A power efficient system and method for linear signal power amplification are provided. A linear power amplifier provides signal amplification from a system input to a system output and is drain-modulated with a power supply signal. An active compensation circuit generates the power supply signal, which is substantially proportional to an envelope of the system input, and provides it to the power amplifier through a low-impedance output. The active compensation circuit reduces noise in the system output spectrum.