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:
Apr. 16, 2013
Filed:
Oct. 30, 2007
Pan-soo Kim, Daejon, KR;
Dae-ig Chang, Deajon, KR;
Deock-gil OH, Daejon, KR;
Seokheon Kang, Seoul, KR;
Deokchang Kang, Seoul, KR;
Wonjin Sung, Seoul, KR;
Pan-Soo Kim, Daejon, KR;
Dae-Ig Chang, Deajon, KR;
Deock-Gil Oh, Daejon, KR;
Seokheon Kang, Seoul, KR;
Deokchang Kang, Seoul, KR;
Wonjin Sung, Seoul, KR;
Abstract
Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system, which acquires an estimated value for detecting frame structure and frame sync and overcomes distortion of correlation analysis values by summing differential correlation values for SOF positions in consideration of the variable frame length, and selecting a maximum value in a channel environment with low signal-to-noise ratio and high frequency error. SOF is a sync word indicating the start point of a frame. The method includes the steps of: acquiring SOF differential correlation value sequences; acquiring sums (d) of the correlation values normalized for SOF positions based on the number of symbols per frame by using the above-generated SOF differential correlation value sequences; and selecting a maximum value (d) among the sums of correlation values, detecting z as a frame sync position, and detecting x as a frame structure index.