System and method for receiving OFDM signal
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United States of America Patent
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Mar 27, 2007
Grant Date -
May 1, 2003
app pub date -
Dec 28, 2001
filing date -
Oct 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for receiving an OFDM signal. An AD converter samples a received signal at a first sampling rate. A low pass filter removes noise from a signal outputted from the AD converter. A rate converter extracts data from a signal outputted from the low pass filter at a second sampling rate. An OFDM signal decoding circuit converts and decodes a signal outputted from the rate converter from a time domain to a frequency domain. An error correction circuit corrects errors of a signal outputted from the OFDM signal decoding circuit. The low pass filter varies its frequency characteristic in response to said first sampling rate.
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