发明名称 |
Modem signal detection in a gateway |
摘要 |
A modem detection method is provided for use by a first gateway, the first gateway capable of communicating with a second gateway over a packet network. The method comprises setting the first gateway to a voice mode having a first coding scheme, encoding an input signal using the first coding scheme to generate a first encoded input signal, transmitting the first encoded input signal to the second gateway over the packet network, looking for a first tone in the input signal while the first gateway is in the voice mode,wherein the first tone is indicative of a beginning of a character, detecting the first tone in the input signal; setting the first gateway from the voice mode to a modem mode in response to the detecting; and transmitting the input signal to the second gateway according to the modem mode. <IMAGE> |
申请公布号 |
EP1571817(A1) |
申请公布日期 |
2005.09.07 |
申请号 |
EP20050003688 |
申请日期 |
2005.02.21 |
申请人 |
MINDSPEED TECHNOLOGIES, INC. |
发明人 |
CHU, KEITH T.;BRENT, JASON |
分类号 |
H04L12/66;H04L29/06;H04M11/06 |
主分类号 |
H04L12/66 |
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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