Invention Grant
US07864843B2 Method and apparatus to encode and/or decode signal using bandwidth extension technology
有权
使用带宽扩展技术对信号进行编码和/或解码的方法和装置
- Patent Title: Method and apparatus to encode and/or decode signal using bandwidth extension technology
- Patent Title (中): 使用带宽扩展技术对信号进行编码和/或解码的方法和装置
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Application No.: US11757528Application Date: 2007-06-04
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Publication No.: US07864843B2Publication Date: 2011-01-04
- Inventor: Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
- Applicant: Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim, LLP
- Priority: KR10-2006-0050124 20060603; KR10-2007-0049947 20070522
- Main IPC: H04N11/02
- IPC: H04N11/02 ; G10L13/00
Abstract:
A method and apparatus to perform bandwidth extension encoding and decoding encodes and/or decodes a high frequency signal using an excitation signal for a low frequency signal encoded in a time domain or a frequency domain or using an excitation spectrum for the low frequency signal. Accordingly, although an audio signal is encoded or decoded using a small number of bits, the quality of sound corresponding to a signal in a high frequency band does not degrade. Therefore, a coding efficiency of the audio signal can be maximized.
Public/Granted literature
- US20070282599A1 METHOD AND APPARATUS TO ENCODE AND/OR DECODE SIGNAL USING BANDWIDTH EXTENSION TECHNOLOGY Public/Granted day:2007-12-06
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