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. 23, 2012
Filed:
Mar. 31, 2009
Tae-jin Lee, Daejon, KR;
Seung-kwon Beack, Seoul, KR;
Min-je Kim, Daejon, KR;
Jeong-il Seo, Daejon, KR;
Dae-young Jang, Daejon, KR;
Kyeong-ok Kang, Daejon, KR;
Jin-woo Hong, Daejon, KR;
Ho-chong Park, Gyeonggi-do, KR;
Young-cheol Park, Gangwon-do, KR;
Rin-chul Kim, Seoul, KR;
Seong-jun OH, Gyeonggi-do, KR;
Chang-beom Ahn, Seoul, KR;
Dong-gyu Sim, Seoul, KR;
Tae-Jin Lee, Daejon, KR;
Seung-Kwon Beack, Seoul, KR;
Min-Je Kim, Daejon, KR;
Jeong-Il Seo, Daejon, KR;
Dae-Young Jang, Daejon, KR;
Kyeong-Ok Kang, Daejon, KR;
Jin-Woo Hong, Daejon, KR;
Ho-Chong Park, Gyeonggi-do, KR;
Young-Cheol Park, Gangwon-do, KR;
Rin-Chul Kim, Seoul, KR;
Seong-Jun Oh, Gyeonggi-do, KR;
Chang-Beom Ahn, Seoul, KR;
Dong-Gyu Sim, Seoul, KR;
Abstract
An apparatus and method for deciding an adaptive noise level for bandwidth extension are provided. The apparatus includes a noise level decider for deciding a high-band noise level for bandwidth extension according to tonality of an input signal, a pitch frequency analyzer for detecting a pitch frequency of the input signal and analyzing correlation between the detected pitch frequency and a frequency channel, and a noise level controller for adaptively controlling the decided high-band noise level based on the analyzed correlation of the pitch frequency and the frequency channel.