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:
Feb. 03, 2009
Filed:
Apr. 04, 2005
Mahibur Rahman, Lake Worth, FL (US);
Charles L. Sobchak, Davie, FL (US);
James David Hughes, Boynton Beach, FL (US);
Mahibur Rahman, Lake Worth, FL (US);
Charles L. Sobchak, Davie, FL (US);
James David Hughes, Boynton Beach, FL (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
Dynamic gain and phase compensation is provided in a radio frequency (RF) receiver () including at least one switched Low Noise Amplifier (LNA) () coupled to an RF gain control unit () providing a gain control signal to the at least one switched LNA () for control thereof. The RF receiver also includes an analog-to-digital (A/D) converter () for digitizing the RF signal and outputting an N-bit digital signal to the RF gain control unit (). The method for gain compensation includes dynamically adjusting the N-bit digital signal to compensate for the at least one switched LNA () in response to the gain control signal. The method for phase compensation includes dynamically normalizing the N-bit digital signal into an M-bit signal range to derive an M-bit digital signal, where M≦N and dynamically phase adjusting the M-bit digital signal to compensate for the at least one switched LNA () in response to the gain control signal.