发明名称 |
Apparatus and method for decoding asynchronous data using derivative calculation |
摘要 |
An apparatus and method of the present invention allows the digitally decoding of asynchronous communication signals and includes a sampling and storing circuit for sampling a digitally converted asynchronous communication signal and storing sampled signal values corresponding to negative edge signal values, positive edge signal values, and central signal values. A derivative calculating circuit is connected to the sampling of storing circuit for receiving at least negative edge signal values and positive edge signal values and calculating derivatives. A comparator circuit receives the calculated derivatives and compares the derivatives with the threshold based on the calculated negative derivative and produces negative output and positive output values used for determining a decoded output signal.
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申请公布号 |
US6496548(B1) |
申请公布日期 |
2002.12.17 |
申请号 |
US20000620009 |
申请日期 |
2000.07.20 |
申请人 |
HARRIS CORPORATION |
发明人 |
SCHNEIDER DAVID F.;BESTERMANN JOHN R. |
分类号 |
H03K5/08;H04L25/06;H04L25/30;(IPC1-7):H04L25/06 |
主分类号 |
H03K5/08 |
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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