专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130028409A1 APPARATUS AND METHOD FOR ECHO CONTROL IN PARAMETER DOMAIN 有权
标题翻译：参数域中ECHO控制的设备和方法
公开(公告)号：US20130028409A1
公开(公告)日：2013-01-31
申请号：US13555502
申请日：2012-07-23
申请人： Jie LI , Junbin LIANG , Yulong LI , Jingfan QIN
发明人： Jie LI , Junbin LIANG , Yulong LI , Jingfan QIN
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： The present invention relates to call voice signal processing, and particularly, to apparatus and method for echo control in parameter domain. The apparatus includes: an echo detection module configured to extract parameter domain characteristic parameters of a far-end output signal and a near-end input signal, respectively, through parameter domain decoding, and detect whether a near-end input signal frame is an echo frame according to the parameter domain characteristic parameters; and a transition module configured to re-quantize the fixed codebook gain, the adaptive codebook gain and an LSF prediction error in the near-end input signal frame when the echo detection module detects the near-end input signal frame as a non-echo frame, and replace the original fixed codebook gain, the original adaptive codebook gain and the original LSF in the near-end input signal frame.
摘要翻译：呼叫语音信号处理技术领域本发明涉及呼叫语音信号处理，特别涉及参数域中回波控制的装置和方法。该装置包括：回波检测模块，被配置为分别通过参数域解码提取远端输出信号和近端输入信号的参数域特性参数，并检测近端输入信号帧是否为回波帧根据参数域特征参数; 以及转换模块，被配置为当所述回波检测模块将所述近端输入信号帧检测为非回波帧时，对所述近端输入信号帧中的固定码本增益，所述自适应码本增益和LSF预测误差进行重新量化并替换原始固定码本增益，原始自适应码本增益和近端输入信号帧中的原始LSF。

2. 发明授权

US08571204B2 Apparatus and method for echo control in parameter domain 有权
标题翻译：参数域回波控制的装置和方法
公开(公告)号：US08571204B2
公开(公告)日：2013-10-29
申请号：US13555502
申请日：2012-07-23
申请人： Jie Li , Junbin Liang , Yulong Li , Jingfan Qin
发明人： Jie Li , Junbin Liang , Yulong Li , Jingfan Qin
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： The present invention relates to call voice signal processing, and particularly, to apparatus and method for echo control in parameter domain. The apparatus includes: an echo detection module configured to extract parameter domain characteristic parameters of a far-end output signal and a near-end input signal, respectively, through parameter domain decoding, and detect whether a near-end input signal frame is an echo frame according to the parameter domain characteristic parameters; and a transition module configured to re-quantize the fixed codebook gain, the adaptive codebook gain and an LSF prediction error in the near-end input signal frame when the echo detection module detects the near-end input signal frame as a non-echo frame, and replace the original fixed codebook gain, the original adaptive codebook gain and the original LSF in the near-end input signal frame.
摘要翻译：呼叫语音信号处理技术领域本发明涉及呼叫语音信号处理，特别涉及参数域中回波控制的装置和方法。该装置包括：回波检测模块，被配置为分别通过参数域解码提取远端输出信号和近端输入信号的参数域特性参数，并检测近端输入信号帧是否为回波帧根据参数域特征参数; 以及转移模块，被配置为当所述回波检测模块将所述近端输入信号帧检测为非回波帧时，对所述近端输入信号帧中的固定码本增益，所述自适应码本增益和LSF预测误差进行重新量化并替换原始固定码本增益，原始自适应码本增益和近端输入信号帧中的原始LSF。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式