发明名称 |
KOMMUNIKATIONSENDGERÄT MIT BANDBREITENERWEITERUNG UND ECHOKOMPENSATION |
摘要 |
The device has a signal reception path with a device for artificial expansion of the received signal bandwidth, digital to analog converter and loudspeaker and a signal transmission path with a microphone, low pass filter and analogue to digital converter. An echo compensation device is connected between an expansion device output and a transmission path connection point on the other side of the analogue to digital converter from the microphone. The device has a signal reception path with a bandwidth expansion device (ABE) for artificial expansion of the bandwidth of a received signal of the communications terminal, a digital to analog converter (1) and a loudspeaker (LS) and a signal transmission path with a microphone (MIC), a low pass filter (TP2) and an analogue to digital converter (2). An echo compensation device (AEC) is connected between an output of the expansion device and a connection point of the transmission path on the other side of the analogue to digital converter relative to the microphone. AN Independent claim is also included for the following: (a) a method of artificial expansion of the bandwidth of a received signal of a communications terminal. |
申请公布号 |
AT315308(T) |
申请公布日期 |
2006.02.15 |
申请号 |
AT20020020601T |
申请日期 |
2002.09.12 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KLINKE, STEFANO AMBROSIUS, DR.;LORENZ, FRANK |
分类号 |
G10L21/02;H04M9/08;(IPC1-7):H04M9/08 |
主分类号 |
G10L21/02 |
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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