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. 09, 2012
Filed:
Oct. 19, 2009
Applicants:
Dong Kyoo Kim, Daejeon, KR;
Jaehwan Kim, Daejeon, KR;
Hyung Soo Lee, Daejeon, KR;
Jae Young Kim, Daejeon, KR;
Inventors:
Dong Kyoo Kim, Daejeon, KR;
Jaehwan Kim, Daejeon, KR;
Hyung Soo Lee, Daejeon, KR;
Jae Young Kim, Daejeon, KR;
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A modulation device uses two base signal axes including a cosine function and two base signal axes including a sine function to modulate bit information and generate a modulation symbol. Accordingly, the frequency efficiency characteristic is improved while maintaining a great power efficiency characteristic.