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:
Jun. 23, 2015
Filed:
Apr. 21, 2009
Theodore Georgantas, Chaidari, GR;
Stamatios Alexandros Bouras, Ilioupolis, GR;
Christos Kokozidis, Athens, GR;
Theodore Georgantas, Chaidari, GR;
Stamatios Alexandros Bouras, Ilioupolis, GR;
Christos Kokozidis, Athens, GR;
Broadcom Corporation, Irvine, CA (US);
Abstract
Methods and systems for calibrating a multi-mode, multi-standard transmitter and receiver are disclosed. Aspects of the method may include configuring calibration paths in a transceiver on a chip including a plurality of Tx and Rx paths. IP2 distortion may be calibrated for the Rx paths utilizing a phase locked loops in the chip and the configurable calibration paths. Local oscillator leakage, Rx path DC offset and RSSI, Tx and Rx I and Q mismatch, and Tx and Rx path filters may be calibrated utilizing the plurality of configurable calibration paths. Cutoff frequency of the filters in the Tx and Rx paths may be calibrated. Blocker signals may be mitigated by calibrating amplifier gains in the Rx paths. The calibration paths may include an envelope detector. Local oscillator leakage and I and Q mismatch may be mitigated utilizing pre-distortion generated by an on-chip digital signal processor in the Tx paths.