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:
Sep. 25, 2012
Filed:
Jul. 29, 2009
Jong Ha Moon, Seoul, KR;
Hyen O OH, Seoul, KR;
Joon IL Lee, Seoul, KR;
Myung Hoon Lee, Seoul, KR;
Yang Won Jung, Seoul, KR;
Alexis Favrot, Biberstein, CH;
Christof Faller, St-Sulpice, CH;
Jong Ha Moon, Seoul, KR;
Hyen O Oh, Seoul, KR;
Joon Il Lee, Seoul, KR;
Myung Hoon Lee, Seoul, KR;
Yang Won Jung, Seoul, KR;
Alexis Favrot, Biberstein, CH;
Christof Faller, St-Sulpice, CH;
LG Electronics Inc., Seoul, KR;
Abstract
An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving, by an audio processing apparatus, a signal, and feedback information estimated based on a normalizing gain; generating a noise estimation based on the signal; computing a gain filter for noise canceling, based on the noise estimation and the signal; and, obtaining a restricted gain filter by applying the feedback information to the gain filter.