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:
Mar. 08, 2016
Filed:
Jun. 10, 2011
Mahyar Kargar, Irvine, CA (US);
Siavash Fallahi, Newport Coast, CA (US);
Namik Kocaman, San Clemente, CA (US);
Afshin Momtaz, Laguna Hills, CA (US);
Mahyar Kargar, Irvine, CA (US);
Siavash Fallahi, Newport Coast, CA (US);
Namik Kocaman, San Clemente, CA (US);
Afshin Momtaz, Laguna Hills, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Embodiments for reference-less voltage controlled oscillator (VCO) calibration are provided. Embodiments include a VCO calibration module which uses one or more signals from a frequency detector to automatically select a proper VCO band and bring the VCO clock frequency close enough to the data rate. The VCO calibration module uses a calibration code to calibrate the VCO. In embodiments, the calibration code is determined using a frequency search scheme, which includes a discovery phase to determine the proper VCO band, and a binary search phase and a monitoring phase to select the calibration code that brings the VCO clock frequency closest to the data rate.