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. 13, 2011
Filed:
Jul. 17, 2009
Applicants:
Eun Chang Choi, Daejeon, KR;
Jae Doo Huh, Daejeon, KR;
Seon Geun Kang, Jinju, KR;
Inventors:
Assignees:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Industry & Academic Cooperation Foundation Gyeongsang National University, Gyeongsangnam-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an orthogonal frequency division multiplexing (OFDM) apparatus using a 3-dimensional (3D) signal constellation. The apparatus performs 2D inverse fast Fourier transform on a set of 3D subchannel signals that is mapped by a signal constellation including signal points distributed on the surface of a 3D sphere.