发明授权
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
- 专利标题： Method and apparatus to encode and/or decode signal using bandwidth extension technology
- 专利标题（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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申请号： US11757528申请日： 2007-06-04
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公开(公告)号： US07864843B2公开(公告)日： 2011-01-04
- 发明人: Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
- 申请人： Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
- 申请人地址： KR Suwon-si
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Suwon-si
- 代理机构： Stanzione & Kim, LLP
- 优先权： KR10-2006-0050124 20060603; KR10-2007-0049947 20070522
- 主分类号： H04N11/02
- IPC分类号： H04N11/02 ; G10L13/00
摘要：
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.
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