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:
Jul. 01, 2014
Filed:
Apr. 04, 2013
Greenvity Communications, Inc., Milpitas, CA (US);
Rui Zhang, Cupertino, CA (US);
Hung C. Nguyen, San Jose, CA (US);
Greenvity Communications, Inc., Milpitas, CA (US);
Abstract
A SCO estimator comprises the following units. A module obtains a first data output by a first unit and copies the first data to obtain copied data. A QAM unit quadrature modulates the copied data into each sub-carrier of each OFDM symbol to regenerate transmitted modulated data. A first phase unit obtains a first phase of each sub-carrier of each OFDM symbol of the modulated data. A second phase unit obtains a second data from a second unit, and obtains a second phase of each sub-carrier of each OFDM symbol of the second data. A comparator generates a comparing result according to the first phase and the second phase of each sub-carrier of each OFDM symbol. A divider divides the comparing result of each sub-carrier by the subcarrier index within each OFDM symbol and the OFDM symbol index of each OFDM symbol. An averaging unit averages the divided comparing result over number of sub-carriers and number of OFDM symbols.