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:
Aug. 04, 2009
Filed:
Sep. 29, 2005
Bin LI, Ronkonkoma, NY (US);
Robert A. Difazio, Greenlawn, NY (US);
Jung-lin Pan, Selden, NY (US);
Alexander Reznik, Titusville, NJ (US);
John David Kaewell, Jr., Jamison, PA (US);
Peter Edward Becker, Coatesville, PA (US);
Bin Li, Ronkonkoma, NY (US);
Robert A. DiFazio, Greenlawn, NY (US);
Jung-Lin Pan, Selden, NY (US);
Alexander Reznik, Titusville, NJ (US);
John David Kaewell, Jr., Jamison, PA (US);
Peter Edward Becker, Coatesville, PA (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.