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:
Dec. 17, 2013
Filed:
Mar. 30, 2012
Saurabh Mishra, Madhepura, IN;
Parag Naik, Bangalore, IN;
Subrahmanya Kondageri Shankaraiah, Bangalore, IN;
S Harish Krishnan, Bangalore, IN;
Gururaj Padaki, Bangalore, IN;
Saurabh Mishra, Madhepura, IN;
Parag Naik, Bangalore, IN;
Subrahmanya Kondageri Shankaraiah, Bangalore, IN;
S Harish Krishnan, Bangalore, IN;
Gururaj Padaki, Bangalore, IN;
Saankhya Labs Pvt. Ltd., Bangalore, IN;
Abstract
A system and method for reducing implementation complexity for estimation of a Carrier Frequency Offset (CFO) and a Symbol Timing Offset (STO) for an input signal for spectrally shaped multiple communication standards. The system is implemented by replacing multiplier with shifters. The system includes a CFO estimation block, a STO estimation block, and a band extraction block that extracts a lower band edge and an upper band edge of the input signal. The STO estimation block includes (i) a sample error generation block that computes a sampling timing error value, and (ii) a Phase Lock Loop block that estimates a frequency error and a phase error corresponding to the sampling timing error value. The CFO estimation block includes (i) a carrier offset error generation block that generates a carrier offset error value, and (ii) a leaky average block for performing a filter operation.