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:
Dec. 13, 2011
Filed:
Jul. 11, 2006
Sung-hoon Kim, Daejon, KR;
Jae-young Lee, Seoul, KR;
Seung-won Kim, Fairfax, VA (US);
Soo-in Lee, Daejon, KR;
Chieteuk Ahn, Daejon, KR;
Ho-kyoung Lee, Gyeonggi-do, KR;
Chang-joong Kim, Seoul, KR;
Sung-Hoon Kim, Daejon, KR;
Jae-Young Lee, Seoul, KR;
Seung-Won Kim, Fairfax, VA (US);
Soo-In Lee, Daejon, KR;
Chieteuk Ahn, Daejon, KR;
Ho-Kyoung Lee, Gyeonggi-do, KR;
Chang-Joong Kim, Seoul, KR;
Abstract
Provided is a method for searching for an optimal coder suitable to a dual stream transmission method of a DTV transceiving apparatus, and an encoder and a decoder employing the optimal coder searching method. The optimal coder searching method includes the steps of: a) determining a mixed pattern of normal stream and robust stream; b) determining a trellis structure of the robust stream which is applied to the mixed pattern based on how coders are connected; c) forming a dual stream trellis by mixing a trellis of the normal stream, which is a normal stream trellis, and a trellis of the robust stream, which is a robust stream trellis; d) computing a free distance at departing points of the dual stream trellis structure based on a dual stream free distance computation termination condition; and e) determining the optimal coder based on the free distance.