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. 30, 2015
Filed:
Jun. 28, 2010
Brian C. Banister, San Diego, CA (US);
Shivratna G. Srinivasan, San Diego, CA (US);
Matthias Brehler, Boulder, CO (US);
Sunil Kumar Kandukuri Narayana, San Diego, CA (US);
Raghu N. Challa, San Diego, CA (US);
Brian C. Banister, San Diego, CA (US);
Shivratna G. Srinivasan, San Diego, CA (US);
Matthias Brehler, Boulder, CO (US);
Sunil Kumar Kandukuri Narayana, San Diego, CA (US);
Raghu N. Challa, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Methods and apparatus for correcting frequency errors between a carrier frequency of a signal received by a wireless device and a reference frequency local to the device. For certain aspects, such a method generally includes receiving a signal in a receiver having an LO producing a reference frequency, a radio frequency (RF) phase-locked loop (PLL), and a digital rotator, estimating a frequency difference between a carrier frequency of the received signal and the LO reference frequency, and applying the estimated frequency difference to the RF PLL and the digital rotator.