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. 15, 2015
Filed:
Nov. 28, 2008
Applicants:
Mi-suk Lee, Daejeon, KR;
Do-young Kim, Daejeon, KR;
Byung-sun Lee, Daejeon, KR;
Inventors:
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2013.01); G10L 21/0208 (2013.01); G10L 19/24 (2013.01); G10L 21/0316 (2013.01); G11B 20/10 (2006.01); H03G 3/34 (2006.01); G10L 21/038 (2013.01);
U.S. Cl.
CPC ...
G10L 21/0208 (2013.01); G10L 19/24 (2013.01); G10L 21/0316 (2013.01); G11B 20/10527 (2013.01); H03G 3/341 (2013.01); G10L 21/038 (2013.01); G11B 2020/10555 (2013.01);
Abstract
An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a core codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.