发明名称 |
Indoor communication system for a vehicular cabin |
摘要 |
A system automatically determines an equalizing filter characteristic for a communication system within a vehicle. The communication system includes a loudspeaker and a microphone or microphone array. The system transmits a predetermined test signal through the loudspeaker and receive the test signal through the microphone or microphone array. Based on the predetermined test signal and the received test signal, a transfer function is developed. The equalizing filter characteristic is then developed from the transfer function. |
申请公布号 |
EP1591995(A1) |
申请公布日期 |
2005.11.02 |
申请号 |
EP20040010231 |
申请日期 |
2004.04.29 |
申请人 |
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH |
发明人 |
HAULICK, TIM;SCHMIDT, GERHARD UWE |
分类号 |
H04R1/40;G10K11/178;G10K15/00;H03G5/00;H03G5/16;H03H21/00;H04R3/00;H04R3/04;H04R5/02;H04R27/00;H04R29/00 |
主分类号 |
H04R1/40 |
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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