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. 29, 2011
Filed:
Oct. 10, 2008
Jiangbo Gan, Gilbert, AZ (US);
Srinivasa R. Bommareddy, Gilbert, AZ (US);
Pravin Premakanthan, Chandler, AZ (US);
Jiangbo Gan, Gilbert, AZ (US);
Srinivasa R. Bommareddy, Gilbert, AZ (US);
Pravin Premakanthan, Chandler, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A gain control process () executed at a transmitter () generates () a gain ramp signal () having a delay component () and a gain component (). The process () further generates () and incorporates () a gain arc () into a digital signal to form a digital gain signal () having a digital gain change (). A combiner () combines a digital input signal () with the digital gain signal () to generate a pre-compensated digital signal (). A variable gain amplifier () applies a sequence of gains () in the gain component () of the gain ramp signal () to a pre-adjusted analog signal () in order to generate a gain-adjusted analog signal (). Application of the gain component () and the digital gain change () occurs when a portion () of the gain arc () indicates a low instantaneous signal power at an antenna () in order to reduce ACLR degradation.