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:
Sep. 18, 2007
Filed:
May. 01, 2002
Applicants:
Younggyun Kim, Irvine, CA (US);
Jaekyun Moon, Plymouth, MN (US);
Inventors:
Younggyun Kim, Irvine, CA (US);
Jaekyun Moon, Plymouth, MN (US);
Assignee:
DSP Group Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Digital communication signals that encode information in the phase may be susceptible to phase error from many sources. The invention corrects for carrier and sampling phase errors, as well as additive phase noise. A digital phase locked loop simultaneously tracks the carrier phase error and the sampling phase error, and corrects the signal in the frequency domain. The invention may use the sampling phase error to advance or delay the sampling window used to convert the signal from the time domain to the frequency domain.