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. 05, 2016
Filed:
Jan. 17, 2011
Gyuhyeok Jeong, Seoul, KR;
Daehwan Kim, Seoul, KR;
Ingyu Kang, Seoul, KR;
Lagyoung Kim, Seoul, KR;
Kibong Hong, ChungBuk, KR;
Zhigang Piao, ChungBuk, KR;
Insung Lee, ChungBuk, KR;
Jongha Lim, ChungBuk, KR;
Sanghyeon Moon, ChungBuk, KR;
Byungsuk Lee, Seoul, KR;
Hyejeong Jeon, Seoul, KR;
Gyuhyeok Jeong, Seoul, KR;
Daehwan Kim, Seoul, KR;
Ingyu Kang, Seoul, KR;
Lagyoung Kim, Seoul, KR;
Kibong Hong, ChungBuk, KR;
Zhigang Piao, ChungBuk, KR;
Insung Lee, ChungBuk, KR;
Jongha Lim, ChungBuk, KR;
Sanghyeon Moon, ChungBuk, KR;
Byungsuk Lee, Seoul, KR;
Hyejeong Jeon, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Chungbuk National University Industry-Academic Cooperation Foundation, Cheongju-si ChungBuk, KR;
Abstract
The present invention relates to a method for processing an audio signal, comprising: a step of performing a frequency conversion process on an audio signal to obtain a plurality of frequency transform coefficients; a step of selecting either a general mode or a non-general mode, on the basis of a pulse ratio, for the frequency transform coefficients having a high frequency band from among the plurality of frequency transform coefficients; and a step of performing, if the non-general mode is selected, the following steps: extracting a predetermined number of pulses from the frequency transform coefficients having the high frequency band, and generating pulse information; generating an original noise signal from the frequency transform coefficients having the high frequency band, excluding the pulses; generating a reference noise signal using the frequency transform coefficient having a low frequency band from among the plurality of frequency transform coefficients; and generating noise position information and noise energy information using the original noise signal and the reference noise signal.