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:
Jul. 02, 2013
Filed:
Dec. 08, 2009
Moshe Ben-ayun, Shoham, IL;
Avi Ben-salmon, Reshon Letzion, IL;
Ovadia Grossman, Tel Aviv-Jaffa, IL;
Mark Rozental, Gedera, IL;
Moshe Ben-Ayun, Shoham, IL;
Avi Ben-Salmon, Reshon Letzion, IL;
Ovadia Grossman, Tel Aviv-Jaffa, IL;
Mark Rozental, Gedera, IL;
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
An integrated circuit includes a linearizer circuit in which excessive delay is compensated. The linearizer circuit includes a power amplifier, forward and feedback paths, and a microprocessor. A signal from the power amplifier is routed by the forward path to be transmitted while a portion of the signal to be transmitted is routed back to the power amplifier via the feedback path. The microprocessor applies phase training signals to the forward path. The microprocessor uses the phase training signals to determine the amount of delay in the linearizer circuit and alters the frequency position of poles and zeros in the linearizer circuit to compensate for the delay. The gain of the linearizer circuit is also altered by the microprocessor depending on the measured delay.