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1. 发明授权

US08355906B2 Method and apparatus for extending the bandwidth of a speech signal 有权
标题翻译：扩展语音信号带宽的方法和装置
公开(公告)号：US08355906B2
公开(公告)日：2013-01-15
申请号：US12785035
申请日：2010-05-21
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L21/00
CPC分类号： G10L21/038 , G10L25/18
摘要： A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal.
摘要翻译：带宽扩展模块以及适用于人为地扩展低带语音信号带宽的相关方法和计算机可读介质。带宽扩展模块包括被配置为从低频语音信号产生带通信号的带通滤波器; 至少一个载波频率调制器，每个载波频率调制器被配置为对相应的载波频率进行音调同步调制所述带通信号，所述至少一个载波频率调制器共同产生高频语音信号分量; 合成滤波器，被配置为基于所述高频语音信号分量来确定高频语音信号; 以及相加模块，被配置为将低频语音信号与高频语音信号组合以获得带宽扩展语音信号。

2. 发明授权

US07734462B2 Method and apparatus for extending the bandwidth of a speech signal 有权
标题翻译：扩展语音信号带宽的方法和装置
公开(公告)号：US07734462B2
公开(公告)日：2010-06-08
申请号：US11469705
申请日：2006-09-01
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L21/00
CPC分类号： G10L21/038 , G10L25/18
摘要： A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal.
摘要翻译：带宽扩展模块以及适用于人为地扩展低带语音信号带宽的相关方法和计算机可读介质。带宽扩展模块包括被配置为从低频语音信号产生带通信号的带通滤波器; 至少一个载波频率调制器，每个载波频率调制器被配置为对相应的载波频率进行音调同步调制所述带通信号，所述至少一个载波频率调制器共同产生高频语音信号分量; 合成滤波器，被配置为基于所述高频语音信号分量来确定高频语音信号; 以及相加模块，被配置为将低频语音信号与高频语音信号组合以获得带宽扩展语音信号。

3. 发明申请

US20100228543A1 METHOD AND APPARATUS FOR EXTENDING THE BANDWIDTH OF A SPEECH SIGNAL 有权
标题翻译：用于扩展语音信号带宽的方法和装置
公开(公告)号：US20100228543A1
公开(公告)日：2010-09-09
申请号：US12785035
申请日：2010-05-21
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L11/04
CPC分类号： G10L21/038 , G10L25/18
摘要： A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal.
摘要翻译：带宽扩展模块以及适用于人为地扩展低带语音信号带宽的相关方法和计算机可读介质。带宽扩展模块包括被配置为从低频语音信号产生带通信号的带通滤波器; 至少一个载波频率调制器，每个载波频率调制器被配置为对相应的载波频率进行音调同步调制所述带通信号，所述至少一个载波频率调制器共同产生高频语音信号分量; 合成滤波器，被配置为基于所述高频语音信号分量来确定高频语音信号; 以及相加模块，被配置为将低频语音信号与高频语音信号组合以获得带宽扩展语音信号。

4. 发明申请

US20070067163A1 METHOD AND APPARATUS FOR EXTENDING THE BANDWIDTH OF A SPEECH SIGNAL 有权
标题翻译：用于扩展语音信号带宽的方法和装置
公开(公告)号：US20070067163A1
公开(公告)日：2007-03-22
申请号：US11469705
申请日：2006-09-01
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L11/04
CPC分类号： G10L21/038 , G10L25/18
摘要： A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal.
摘要翻译：带宽扩展模块以及适用于人为地扩展低带语音信号带宽的相关方法和计算机可读介质。带宽扩展模块包括被配置为从低频语音信号产生带通信号的带通滤波器; 至少一个载波频率调制器，每个载波频率调制器被配置为对相应的载波频率进行音调同步调制所述带通信号，所述至少一个载波频率调制器共同产生高频语音信号分量; 合成滤波器，被配置为基于所述高频语音信号分量来确定高频语音信号; 以及相加模块，被配置为将低频语音信号与高频语音信号组合以获得带宽扩展语音信号。

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