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. 19, 2013
Filed:
Sep. 21, 2010
Moshe Ben-ayun, Shoham, IL;
Ovadia Grossman, Tel Aviv-Yaffo, IL;
Mark Rozental, Gedera, IL;
Uri Vallach, Petach-Tikva, IL;
Moshe Ben-Ayun, Shoham, IL;
Ovadia Grossman, Tel Aviv-Yaffo, IL;
Mark Rozental, Gedera, IL;
Uri Vallach, Petach-Tikva, IL;
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A linear RF transmitter () includes a forward path including a baseband signal combiner () and an RF (radio frequency) power amplifier (), and a linearizing control loop from an output () of the RF power amplifier to an input of the combiner (). A feedback control path () of the loop delivers a baseband error control signal to the combiner. The transmitter further includes a test signal generator () to apply to the combiner in a closed loop level training mode a test signal comprising a voltage Vwhich increases with time in a non-linear manner approaching an asymptotic limit such that in response an output signal produced by the combiner is a voltage Vwhich is substantially constant over a period of time.