发明授权
US07552048B2 Method and device for performing frame erasure concealment on higher-band signal
有权
在较高频带信号上执行帧擦除隐藏的方法和装置
- 专利标题: Method and device for performing frame erasure concealment on higher-band signal
- 专利标题(中): 在较高频带信号上执行帧擦除隐藏的方法和装置
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申请号: US12273391申请日: 2008-11-18
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公开(公告)号: US07552048B2公开(公告)日: 2009-06-23
- 发明人: Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
- 申请人: Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
- 申请人地址: CN Shenzhen
- 专利权人: Huawei Technologies Co., Ltd.
- 当前专利权人: Huawei Technologies Co., Ltd.
- 当前专利权人地址: CN Shenzhen
- 代理机构: Darby & Darby
- 优先权: CN200710153955 20070915; CN200710194570 20071124
- 主分类号: G10L11/04
- IPC分类号: G10L11/04 ; G10L19/00
摘要:
A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.
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