Carrier recovery for DTV receivers
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United States of America Patent
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N/A
Issued Date -
Nov 6, 2003
app pub date -
Apr 4, 2003
filing date -
Apr 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method for carrier recovery independent of a pilot signal uses the frequency and phase information in the upper and lower band edges of a signal to generate a signal for correcting the frequency and phase of the local oscillator. A particular combination of raised-root cosine filters, low-pass filters, multipliers, and adders effectively uses the tails of a received signal in the frequency domain to correct phase errors.
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