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:
Aug. 09, 2007
Norman Beamish, Cork, IE;
Conor O'keeffe, Cork, IE;
Patrick Pratt, Mallow, IE;
David Redmond, Cork, IE;
Jacques Trichet, Cugnaux, FR;
Norman Beamish, Cork, IE;
Conor O'Keeffe, Cork, IE;
Patrick Pratt, Mallow, IE;
David Redmond, Cork, IE;
Jacques Trichet, Cugnaux, FR;
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A wireless communication unit comprises a transmitter having a power amplifier and a feedback path operably coupled to the power amplifier. The feedback path comprises a coupler for feeding back a portion of a signal to be transmitted and a detector for detecting a power level of the fed back signal. A controller provides a ramp signal to the power amplifier that controls an amplitude characteristic of the signal to be transmitted. Averaging logic is operably coupled to the detector and arranged to average the detected power level over a first period. Comparison logic is operably coupled to the averaging logic and arranged to compare the average detected power level with a reference value. The controller is operably coupled to the comparison logic and arranged to scale a ramp signal applied to the power amplifier in response to the comparison.