发明名称 Delay detector for QPSK signals.
摘要 <p>A base-band delayed detector has an operation circuit (1 - 59) for performing a delayed detecting operation with respect to an input signal, the operation circuit (1 - 59) outputting an altered signal having a predetermined symbol rate. The base-band delayed detector includes a clock generator (31, 33) for generating a clock signal having a frequency twice as large as the symbol rate, the clock signal being used, as a timing signal, in the operation circuit (1 -59), a synchronizing circuit (2, 32, 35) for synchronising the clock signal with the altered signal output from the operation circuit; and a data determination circuit (60, 61, 62) for obtaining output data from the altered signal at a predetermined timing defined based on the clock signal synchronized with the altered signal. &lt;IMAGE&gt;</p>
申请公布号 EP0503632(A2) 申请公布日期 1992.09.16
申请号 EP19920104295 申请日期 1992.03.12
申请人 FUJITSU LIMITED 发明人 ONODA, MASAHIRO;TODA, YOSHIFUMI
分类号 H04L27/227;H04L7/033;H04L27/233 主分类号 H04L27/227
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