| 发明名称 |
An adaptive system for measuring the broadband signal-to-noise ratio of a transmission channel. |
| 摘要 |
<p>A facility is provided for measuring the signal-to-noise ratio of a transmission channel using the results obtained by transmitting over channel a pseudorandom noise signal, in which the value of the signal-to-noise ratio may be used to determine wether the channel contains various types of pulse code modulation equipment.</p> |
| 申请公布号 |
EP0502681(A1) |
申请公布日期 |
1992.09.09 |
| 申请号 |
EP19920301777 |
申请日期 |
1992.03.02 |
| 申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
GRIZMALA, FREDRICK;LEVONAS, ROBIN |
| 分类号 |
H04B14/06 |
主分类号 |
H04B14/06 |
| 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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