Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus
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United States of America Patent
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Nov 28, 2000
Grant Date -
N/A
app pub date -
May 14, 1998
filing date -
May 21, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A spread-spectrum signal receiving method and apparatus in which a correlation operation is performed for obtaining a correlation between a base-band component of a received spread-spectrum signal and a spread code, so as to demodulate the received signal. In the method, a correlation operation between the spread code and the base-band component, and a correlation operation at a timing equal to a timing difference between the spread code and the base-band component in the former correlation operation step, the timing difference being 1/2 of a spread-code interval, are performed. Then, based on results obtained in these correlation operations, a correlation operation result at the timing point where a timing difference between the spread code and the base-band component is less than 1/2 of the spread-code interval, is estimated.
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