发明名称 |
Hintergrundrauschen-Kontrastreduzierung für Umschaltungen mit einer Änderung der Sprachcoder |
摘要 |
A method and apparatus for smooth transitions of background noise as a mobile communication unit roams from a first communication system having a first speech encoder (310) to a second communication system having a second speech encoder (330). As the mobile communication unit roams into the second communication system, the first communication system will transfer the communication signal to the second communication system. Background noise from the first communication system is sampled (320), and as the communication signal is transferred, the noise signal sampled in the first communication system is mixed in a mixer of the second communication system with background noise sampled (340) from the second communication system. As the change in noise progresses, the noise from the first communication system will gradually be decreased and faded out while the noise from the second communication system will be gradually increased to a high power level. |
申请公布号 |
DE19882753(T1) |
申请公布日期 |
2001.03.08 |
申请号 |
DE1998182753T |
申请日期 |
1998.10.12 |
申请人 |
MOTOROLA LTD., BASINGSTOKE |
发明人 |
GIBBS, JONATHAN ALASTAIR;PEARCE, DAVID;CHAN, DOMINIC;AFTELAK, ANDREW JOHN |
分类号 |
G10L19/00;G10L21/02;H04B7/26;H04B14/04;H04W36/14;(IPC1-7):G10L21/02 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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