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. 25, 2012
Filed:
Nov. 17, 2008
Lin He, Irvine, CA (US);
Thomas J. Kolze, Phoenix, AZ (US);
Ba-zhong Shen, Irvine, CA (US);
Gottfried Ungerboeck, Langnau a.A., CH;
Bruce J. Currivan, Dove Canyon, CA (US);
Lin He, Irvine, CA (US);
Thomas J. Kolze, Phoenix, AZ (US);
Ba-Zhong Shen, Irvine, CA (US);
Gottfried Ungerboeck, Langnau a.A., CH;
Bruce J. Currivan, Dove Canyon, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.