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. 15, 2011
Filed:
Oct. 09, 2008
Patrick Pratt, Mallow, IE;
Charles Leroy Sobchak, Davie, FL (US);
Patrick Pratt, Mallow, IE;
Charles LeRoy Sobchak, Davie, FL (US);
Freescale Semiconductor, Austin, TX (US);
Abstract
A radio frequency transceiver (), including a transmitter (), a duplexer () and a direct-conversion receiver () including a mixer (and). An IIP2 calibration system (), coupled to the transceiver, includes an IIP2 coefficient estimator () for calculating an estimate of second-order distortion intermodulation distortion, and an IIP2 controller () for adjusting an IIP2 tuning port of the mixer in the receiver to minimize second-order distortion intermodulation distortion in the receiver that may be caused by the receiver receiving a transmit RF signal leaking through the duplexer.