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:
Jan. 18, 2011
Filed:
Nov. 25, 2004
In-kyeong Choi, Daejeon, KR;
Seong-rag Kim, Daejeon, KR;
Dong-seung Kwon, Daejeon, KR;
Jin-ho Choi, Dudndas, AU;
In-Kyeong Choi, Daejeon, KR;
Seong-Rag Kim, Daejeon, KR;
Dong-Seung Kwon, Daejeon, KR;
Jin-Ho Choi, Dudndas, AU;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.