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:
Oct. 14, 2014
Filed:
Sep. 14, 2012
Chang-hyun Baik, Suwon-si, KR;
Hyun-jung Ko, Seoul, KR;
Jun-yeub Lee, Seongnam-si, KR;
Jun-seok Kang, Bucheon-si, KR;
Chang-hyun Baik, Suwon-si, KR;
Hyun-jung Ko, Seoul, KR;
Jun-yeub Lee, Seongnam-si, KR;
Jun-seok Kang, Bucheon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and an apparatus for mapping a quadrature amplitude modulation (QAM) symbol. The QAM symbol mapping apparatus includes a frequency checker, which checks frequencies of sub-carriers in an orthogonal frequency division multiplexing (OFDM) symbol; and a data categorizer, which maps data coded for error correction and uncoded data to the sub-carriers based on the checked frequencies, wherein the data categorizer maps a combination of the coded data and the uncoded data with respect to sub-carriers having frequencies lower than a reference frequency.