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专利名称：An adaptive system for measuring the
broadband signal-to-noise ratio of atransmission channel
发明人：Grizmala, Fredrick,Levonas, Robin申请号：EP92301777.6申请日：19920302公开号：EP0502681B1公开日：19960228
摘要：A facility is provided for measuring the signal-to-noise ratio of a transmissionchannel using the results obtained by transmitting over channel a pseudorandom noisesignal, in which the value of the signal-to-noise ratio may be used to determine wetherthe channel contains various types of pulse code modulation equipment.
申请人：AT & T CORP
地址：US
国籍：US
代理机构：Buckley, Christopher Simon Thirsk
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