Method and system for data and edge detection with correlation tables
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United States of America Patent
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Mar 25, 2008
Grant Date -
Apr 8, 2004
app pub date -
Oct 7, 2002
filing date -
Oct 7, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method is disclosed for evaluating a data group of oversampled bits to detect edge transitions and for improving use of information available from a sampled data while maintaining acceptable noise rejection. An edge detection system for receiving a serial data stream includes a sampler for collecting a sample pattern from the serial data stream, the sample pattern including a succession of a plurality of data samples from the data stream with the plurality of data samples including multiple samples during a bit time associated with the data stream; a memory, coupled to the sampler, for storing one or more successive sample patterns; and a correlator, coupled to the memory, for producing a sample condition signal using a set of predefined patterns by comparing the stored sampled patterns to the predefined patterns.
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