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:
Nov. 26, 2013
Filed:
Feb. 22, 2007
Kangeun Lee, Gangneung-si, KR;
Eunmi OH, Seongnam-si, KR;
Hosang Sung, Yongin-si, KR;
Changyong Son, Gunpo-si, KR;
Kihyun Choo, Seoul, KR;
Junghoe Kim, Seoul, KR;
Kangeun Lee, Gangneung-si, KR;
Eunmi Oh, Seongnam-si, KR;
Hosang Sung, Yongin-si, KR;
Changyong Son, Gunpo-si, KR;
Kihyun Choo, Seoul, KR;
Junghoe Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and an apparatus to encode and decode a speech signal using a code excited linear prediction (CELP) algorithm. In order to reduce a bit rate without degrading performance in an enhancement layer based on CELP, each of a fixed codebook of a core layer and a fixed codebook of the enhancement layer is divided into a plurality of spaces. The spaces of the fixed codebook of the enhancement layer excludes a space corresponding to a least distorted space determined from among the spaces of the fixed codebook of the core layer are searched.