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专利名称：A variable equalization amplifier发明人：Polhemus, Gary D.申请号：EP93310569.4申请日：19931224公开号：EP0607702A3公开日：19950308
专利附图：
摘要：An adaptive equalization circuit which has a first path that includes a boost stage(12) and a first variable gain stage (14) and a second path that includes a second variablegain stage (16). The first path generates a fully equalized signal in response to an inputsignal while the second path generates an unequalized signal in response to the input
signal. A summing stage (18) combines the fully equalized signal and the unequalizedsignal to produce an equalized output signal. A first control line limits the gain of the firstvariable gain stage while a second control line limits the gain of the second variable gainstage so that when the maximum length of transmission line is utilized, the equalizedoutput signal is formed substantially by the fully equalized signal, when a minimumlength of transmission line is utilized, the equalized output signal is formed substantiallyby the unequalized signal, and when an intermediate length of transmission line isutilized, the equalized output signal is formed from a portion of both the fully equalizedsignal and the unequalized signal.
申请人：NATIONAL SEMICONDUCTOR CORPORATION
地址：2900 Semiconductor Drive, P.O. Box 58090 Santa Clara, California 95052-8090 US
国籍：US
代理机构：Horton, Andrew Robert Grant
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