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. 18, 2012
Filed:
Jul. 21, 2006
Hosang Sung, Yongin-si, KR;
Sangwook Kim, Seoul, KR;
Rakesh Taori, Suwon-si, KR;
Kangeun Lee, Gangneung-si, KR;
Hosang Sung, Yongin-si, KR;
Sangwook Kim, Seoul, KR;
Rakesh Taori, Suwon-si, KR;
Kangeun Lee, Gangneung-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
Provided are a scalable wide-band speech coding/decoding apparatus, method, and medium. An input wide-band speech input signal is first divided into a low-band signal and a high-band signal. The divided low-band signal is then coded using a code excited linear prediction (CELP) method. The divided high-band signal is coded using a harmonic method. A signal representing a difference between a synthetic signal obtained from the low-band and the high band, and a signal input to the low-band and the high-band is then coded using a modified discrete cosine transform (MDCT) method. The coded signal is then multiplexed. The multiplexed signal is then output. Accordingly, high quality speech can be achieved for all layers.