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:
Jul. 16, 2013
Filed:
Apr. 28, 2008
IN Gi Lim, Daejeon, KR;
Hyung IL Park, Daejeon, KR;
Sung Weon Kang, Daejeon, KR;
Tae Wook Kang, Daejeon, KR;
Jung Hwan Hwang, Daejeon, KR;
Kyung Soo Kim, Daejeon, KR;
Jung Bum Kim, Daejeon, KR;
Chang Hee Hyoung, Daejeon, KR;
Duck Gun Park, Daejeon, KR;
Sung Eun Kim, Seoul, KR;
Jin Kyung Kim, Daejeon, KR;
Ki Hyuk Park, Daejeon, KR;
Hyuk Kim, Daejeon, KR;
In Gi Lim, Daejeon, KR;
Hyung Il Park, Daejeon, KR;
Sung Weon Kang, Daejeon, KR;
Tae Wook Kang, Daejeon, KR;
Jung Hwan Hwang, Daejeon, KR;
Kyung Soo Kim, Daejeon, KR;
Jung Bum Kim, Daejeon, KR;
Chang Hee Hyoung, Daejeon, KR;
Duck Gun Park, Daejeon, KR;
Sung Eun Kim, Seoul, KR;
Jin Kyung Kim, Daejeon, KR;
Ki Hyuk Park, Daejeon, KR;
Hyuk Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a method and apparatus using a frequency selective baseband. Symbol-error correction modulation and demodulation is performed by generating a plurality of subgroups by dividing 2spread codes or orthogonal codes used for frequency spreading into 2(M<N) spread codes or orthogonal codes; selecting (P+L) subgroups; acquiring P spread codes by inputting M data bits to each of the selected P subgroups to select one spread code among the 2spread codes of each subgroup; generating L*M parity bits for symbol error correction using P*M data bits inputted to the selected P subgroups; selecting one spread code among the 2spread codes of the L subgroups by inputting the L*M parity bits to the L subgroups; and selecting the dominant values among the (P+L) spread codes acquired from the (P+L) subgroups to generate transmitting data including the dominant values, where N, M, P, and L are real numbers.