Flexible preamble processing for detecting a code sequence
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United States of America Patent
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Feb 17, 2004
Grant Date -
Feb 7, 2002
app pub date -
Aug 3, 2001
filing date -
Aug 3, 2000
priority date (Note) -
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Abstract
An architecture and method for flexible preamble processing is disclosed herein. The preamble processing engine detects a code sequence in input, where the code sequence is a sum of a first code sequence and a second code sequence The preamble processing engine includes a data input line, a code input line, a despreader, and a plurality of memory registers. The code input selectively receives the first code sequence or the second code sequence, the first code sequence having a period longer than a period for the second code sequence. The despreader is coupled to the data input line and the code input line. The despreader producing a despread result between the first code sequence and the input data. Lastly, the plurality of memory registers, which are coupled to the despreader, each stores only a portion of the despread results.
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