Adaptive removal of disturbance
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专利名称：Adaptive removal of disturbance 发明人：Alapuranen, Pertti,Kuhn, Ingo,Paksuniemi,
Janne 申请号：EP98310297.1 申请日：19981216 公开号：EP0926839A3 公开日：2004 0102
申请人：Nokia Corporation 地址：Keilalahdentie 4 02150 Espoo FI 国籍：FI 代理机构：Read, Matthew Charles 更多信息请下载全文后查看
摘要：Methods and apparatus are disclosed for suppressing transmitter burst mode disturbances in an audio band. The method and apparatus detects those signal frames wherein the input signal contains signal energy comprised substantially of only the disturbance signal; characterizes the disturbance signal in the detected signal frames to obtain a disturbance signal correction; and compensates the input signal, only for those signal frames where a transmission burst exists, using the obtained disturbance signal correction so as to remove the disturbance signal from those signal frames that contain voice, and also from certain signal frames that do not contain voice. Frequency hopping embodiments of disturbance removing circuitry are also disclosed.
专利名称：Adaptive removal of disturbance 发明人：Alapuranen, Pertti,Kuhn, Ingo,Paksuniemi,
Janne 申请号：EP98310297.1 申请日：19981216 公开号：EP0926839A3 公开日：2004 0102
申请人：Nokia Corporation 地址：Keilalahdentie 4 02150 Espoo FI 国籍：FI 代理机构：Read, Matthew Charles 更多信息请下载全文后查看
摘要：Methods and apparatus are disclosed for suppressing transmitter burst mode disturbances in an audio band. The method and apparatus detects those signal frames wherein the input signal contains signal energy comprised substantially of only the disturbance signal; characterizes the disturbance signal in the detected signal frames to obtain a disturbance signal correction; and compensates the input signal, only for those signal frames where a transmission burst exists, using the obtained disturbance signal correction so as to remove the disturbance signal from those signal frames that contain voice, and also from certain signal frames that do not contain voice. Frequency hopping embodiments of disturbance removing circuitry are also disclosed.