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:
Jul. 06, 2010
Filed:
Apr. 02, 2008
Jung-hoe Kim, Seongnam-si, KR;
Eun-mi OH, Seongnam-si, KR;
Ki-hyun Choo, Seoul, KR;
Boris Kudryashov, Valadivostok, RU;
Olga Prokofyeva, Valadivostok, RU;
Jung-hoe Kim, Seongnam-si, KR;
Eun-mi Oh, Seongnam-si, KR;
Ki-hyun Choo, Seoul, KR;
Boris Kudryashov, Valadivostok, RU;
Olga Prokofyeva, Valadivostok, RU;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented.